OBJECTIVE:To investigated the effects of suspended moxibustion stimulating Shenshu(BL23)and Guanyuan(CV4)acupoints on the amygdala and HPA axis in our rat model and elucidated the possible molecular mechanisms of moxi...OBJECTIVE:To investigated the effects of suspended moxibustion stimulating Shenshu(BL23)and Guanyuan(CV4)acupoints on the amygdala and HPA axis in our rat model and elucidated the possible molecular mechanisms of moxibustion on kidney-Yang deficiency symptom pattern(KYDS).METHODS:Sixty male Sprague Dawley rats were randomly divided into a control group(n=12)and an experimental group(n=48).Rats in the experimental group were given intramuscular injections of hydrocortisone to establish a KYDS model.The 48 rats successfully modeled were then randomly divided into a model group(model,n=12),a carbenoxolone intraperitoneal injection group(CBX,n=12),a moxibustion group(moxi,n=12),and a moxi+CBX group(n=12).In the moxi,the Shenshu(BL23)and Guanyuan(CV 4)acupoints were treated with moxibustion for 14 d.After treatment,measures were taken of serum levels of corticosterone(CORT),adrenocorticotropic hormone(ACTH),and corticotropinreleasing hormone(CRH).The expression of mineralocorticoid receptors(MRs),glucocorticoid receptors(GRs),11beta-hydroxysteroid dehydrogenase type 1(11β-HSD1),CRH,and ACTH in the rats’amygdala,hypothalamus,or pituitary(as appropriate)was detected.Data were analyzed using one-way analysis of variance.RESULTS:Compared with those of the control group,the serum levels of CRH,ACTH,and CORT;the mRNA and protein expressions of MR,GR,and 11β-HSD1 in the amygdala;the mRNA and protein expressions of 11β-HSD1 in the hypothalamus;the CRH mRNA expression in the amygdala and hypothalamus;and the ACTH mRNA expression in the pituitary of the rats in the model group were all significantly decreased(P<0.05 or 0.01).After treatment with moxibustion,all the aforementioned observation indices except for 11β-HSD1 m RNA expression were ameliorated compared with those in the model group(P<0.05 or 0.01).CONCLUSIONS:Suspended moxibustion can effectively improve the serum levels of ACTH,CRH,and CORT and can up-regulate the mRNA and protein expressions of MR,GR,11β-HSD1,CRH,and ACTH in the amygdala and hypothalamus of KYDS rats.This may be one of the molecular mechanisms with which moxibustion alleviates KYDS.展开更多
Background:In traditional Chinese medicine,You-Gui-Wan(YGW)is typically used to treat osteoporosis associated with kidney-yang deficiency.However,there have been few mechanistic studies on the effectiveness of kidney-...Background:In traditional Chinese medicine,You-Gui-Wan(YGW)is typically used to treat osteoporosis associated with kidney-yang deficiency.However,there have been few mechanistic studies on the effectiveness of kidney-yang deficiency-type osteoporosis with YGW.To further clarify the role of YGW in the effect of osteoporosis with kidney-yang deficiency,the study analyzed the therapeutic advantages of YGW by comparing the therapeutic effects of YGW and alendronate(ALN)on osteoporosis with kidney-yang deficiency.Methods:SPF female SD rats were randomly divided into control,osteoporosis,osteoporosis with kidney-yang deficiency,osteoporosis with kidney-yang deficiency+YGW and osteoporosis with kidney-yang deficiency+ALN groups.Except for the control group,osteoporosis was induced by the removal of bilateral ovaries.After 12 weeks,rats with osteoporosis in the kidney-yang deficiency group had kidney-yang deficiency syndrome triggered by hydrocortisone for 14 days.Rats were treated with YGW or ALN for 12 weeks.The weights of rats were recorded.Hematoxylin-eosin staining staining was used to observe pathological changes in bone trabeculae,liver,spleen,and kidneys of rats.Depletion of the growth plate cartilage of rats in different groups was observed by safranine-O staining.The expression of osteoclast key indices(ACP)and osteoblast key indices(ALP)in the bone tissue of rats in the different groups was observed by immunohistochemical staining.The expression of bone resorption-related indicators(TRAP and NXT-1),bone formation-related indicators(BALP,BGP,and P1NP),and major indicators of kidney-yang deficiency(ACTH,T3,T4,cAMP,and cGMP)were observed using an ELISA detection kit.The expression levels of the main indices of liver function(ALT and AST)were detected in different groups.Results:The differences between the osteoporosis with kidney-yang deficiency group and osteoporosis group were that the weight of rats and the expression of ACTH,T3,T4,and cAMP decreased significantly,and the expression of cGMP increased in the osteoporosis with kidney-yang deficiency group.Moreover,both YGW and ALN effectively improved the symptoms of osteoporosis,including the injury of bone trabeculae and growth plates,as well as the expression of bone metabolism-related indicators.However,unlike ALN,YGW simultaneously ameliorated the expression of key indicators of kidney-yang deficiency and prevented weight loss in rats.In addition,YGW caused no obvious damage to the liver,spleen,or kidney,whereas ALN led to liver cirrhosis.Conclusion:The results reveal that YGW plays a crucial part in osteoporosis with kidney-yang deficiency,increases bone mineral density,and improves bone metabolism indicators,and is safe and efficient for the efficacy of osteoporosis with kidney-yang deficiency.YGW might have a better therapeutic effect on osteoporosis in patients with kidney-yang deficiency.Therefore,alendronate should be used cautiously in patients with osteoporosis and poor liver function.展开更多
OBJECTIVE:To study the development mechanism of kidney-Yang deficiency through the establishment of support vector machine models of relevant hormones of the pituitary-target gland axes in rats with kidney-Yang defici...OBJECTIVE:To study the development mechanism of kidney-Yang deficiency through the establishment of support vector machine models of relevant hormones of the pituitary-target gland axes in rats with kidney-Yang deficiency syndrome.METHODS:The kidney-Yang deficiency rat model was created by intramuscular injection of hydrocortisone,and contents of the hormones of the pituita- ry-thyroid axis:thyroid stimulating hormone(TSH),3,3',5-triiodothyronine(T_3) and thyroxine(T_4);hormones of the pituitary-adrenal gland axis:adrenocorticotropic hormone(ACTH) and Cortisol(CORT);and hormones of the pituitary-gonadal axis:luteinizing hormone(LH),follicle-stimulating hormone(FSH),and testosterone(T),were determined in the early,middle,and advanced stages.Ten support vector regression(SVR) models of the hormones were established to analyze the mutual relationships among the hormones of the three axes.RESULTS:The feedback control action of the pituitary-adrenal axis began to lose efficacy from the middle stage of kidney-Kong deficiency.The contents all hormones of the three pituitary-target gland axes decreased in the advanced stage.Relative errors of the jackknife test of the SVR models all were less than 10%.CONCLUSION:Imbalances in mutual regulation among the hormones of the pituitary-target gland axes,especially loss of effectiveness of the pituitary-adrenal axis,is one pathogenesis of kidney-Yang deficiency.The SVR model can accurately reflect the complicated non-linear relationships among pituitary-target gland axes in rats with of kidney-Yang deficiency.展开更多
Background:“Qi deficiency”(a pathological state where the body’s vital energy(Qi)is insufficient or weakened,impairing physiological functions and diminishing the body’s ability to perform daily activities,defend ...Background:“Qi deficiency”(a pathological state where the body’s vital energy(Qi)is insufficient or weakened,impairing physiological functions and diminishing the body’s ability to perform daily activities,defend against illness,and maintain homeostasis)syndrome is considered a critical syndrome in traditional Chinese medicine(TCM)and is associated with poor prognosis in heart failure(HF).This study investigates the clinical,metabolic,and transcriptomic differences between heart failure patients with and without Qi deficiency syndrome.Methods:56 heart failure patients were evaluated using a Qi deficiency syndrome scale and divided into Qi deficiency syndrome(QD)and non-Qi deficiency(non-QD)groups based on the median score.Clinical characteristics,including baseline N-terminal pro-B-type natriuretic peptide(NT-proBNP),left ventricular ejection fraction(LVEF),total diuretic use during hospitalization,and 90-day rehospitalization rates,were compared between the groups.Differentially expressed genes(DEGs)and differential metabolites were identified,followed by enrichment analyses and validation using qPCR and Western blot in AC16 cardiomyocytes.Results:QD patients exhibited significantly higher NT-proBNP levels,lower LVEF,and increased 90-day rehospitalization rates.Metabolomic profiling revealed lipid metabolism disruptions,notably in linoleic acid and phospholipid pathways.Transcriptomic analysis highlighted 17 DEGs,including CISD2,a critical mitochondrial regulator,which was downregulated in QD patients.Correlation analysis identified significant associations between DEGs(e.g.,CISD2,BPGM)and lipid metabolites such as PC(16:0/P-16:0).Functional knockdown of CISD2 in AC16 cells led to upregulation of lipid oxidation enzymes ALOX15 and CYP1A2,linking CISD2 dysfunction to lipid metabolic dysregulation.Conclusion:Qi deficiency is associated with more severe heart failure symptoms,worse prognosis,and distinct metabolic and transcriptomic profiles,particularly in lipid metabolism.CISD2 emerges as a potential therapeutic target,offering new avenues for integrating molecular insights with TCM approaches to optimize HF management.展开更多
Background:Panacis Quinquefolii Radix(PQR)is known for its ability to nourish“Qi”(it serves as the driving force for the functional activities of the body’s organs and meridians,promoting and regulating various phy...Background:Panacis Quinquefolii Radix(PQR)is known for its ability to nourish“Qi”(it serves as the driving force for the functional activities of the body’s organs and meridians,promoting and regulating various physiological functions)and“Yin”(it represents the material foundation of the human body.It plays a role in nourishing,moistening,and cooling the body).Notoginseng Radix et Rhizoma(NRR)is recognized for its properties of resolving blood stasis(it refers to a pathological condition characterized by impaired or stagnant blood circulation within the body).Changes in the compatibility ratio of these herbs often lead to variations in their chemical composition and efficacy.However,the specific alterations in chemical composition and efficacy resulting from compatibility adjustments remain unclear.We aimed to compare the material basis and their effects of different compatibility ratios of PQR and NRR on“Qi”deficiency and blood stasis syndrome(QBS).Methods:This study employed UPLC-Q/TOF-MS to identify effective compounds in the compatibility of PQR and NRR and utilized UPLC-TQ-MS/MS to analyze the dissolution of 16 saponins in PQR and NRR at 9 different ratios.A rat model of QBS was established,and the efficacy of PQR and NRR in treating this syndrome was assessed using hemorheology and coagulation analyses.Results:The study results show that PQR and NRR exhibit significant efficacy,effectively reducing blood viscosity induced by platelet aggregation and lowering inflammatory markers such as IL-6,IL-10,TXB2 and ET associated with vascular injury.Moreover,this combination regulates ATP and ADP levels,enhances energy metabolism,and promotes overall health.A total of 104 compounds in the compatibility of PQR and NRR were identified.The ratios of 1:2 and 1:3 showed the highest total saponin content,but the ratio of 1:1 demonstrated a superior pharmacological effect for the treatment of QBS.Conclusion:In summary,the compatibility of PQR and NRR not only shows the complex interactions between traditional Chinese medicinal materials,but also provides a new idea and method for the treatment of QBS.展开更多
With the aim of investigating the ability and possible mechanism of Chinese medicine Jinkuishenqiwan pills to inhibit the spermatgoenic arrest infertile,100 mature male rats were randomly divided into five groups:norm...With the aim of investigating the ability and possible mechanism of Chinese medicine Jinkuishenqiwan pills to inhibit the spermatgoenic arrest infertile,100 mature male rats were randomly divided into five groups:normal control group,model group,test group treated with high dosage of Jinkuishenqiwan pills,test group treated with middle dosage of Jinkuishenqiwan pills,and test group treated with low dosage of Jinkuishenqiwan pills.Except the normal group,the other four groups were made into model of kidney-yang deficiency by injecting hydrocortisone.Simultaneously,the treatment of Jinkuishenqiwan pills was also irrigated into the stomachs of the three treated groups.After 30 days,the concentration of testosterone,the sperm density and the motility rate of sperm were examined,the microstructure of testicle was observed by optical microscope.Results showed that Jinkuishenqiwan pills can inhibit the spermatgoenic arrest infertile,there exists statistical difference between test group and the model group(P<0.05).In conclusion:Chinese medicine Jinkuishenqiwan pills may have a certain therapeutic effects on the rats with kidney-yang deficiency.展开更多
Deficiency or restriction of Zn absorption in soils is one of the most common micronutrients deficient in cereal plants. To investigate critical micronutrient interaction in zinc deficiency and zinc sufficient in soil...Deficiency or restriction of Zn absorption in soils is one of the most common micronutrients deficient in cereal plants. To investigate critical micronutrient interaction in zinc deficiency and zinc sufficient in soil, a factorial experiment based on completely randomized design (CRD) with three replications was conducted in 2023. Six wheat cultivars with different Zn efficiency were used. The cultivars were grown under Zn deficiency and adequate conditions. Results showed that in Zn deficiency conditions, with increasing Zn concentration in the roots, Fe concentrations were increased too, while the Cu and Mn concentrations decreased. In the same condition and with increasing Zn concentration in shoots, the concentrations of Fe and Mn decreased, while Cu were increased. However, by increasing Zn concentration, Fe, Cu, and Mn concentrations were increased in Zn deficiency condition in grains, as well as Zn sufficient conditions. RST (root to shoot micronutrient translocation) comparison of cultivars showed that in lack of Zn, the ability of translocation of Zn, Fe, and Mn in Zn-inefficient cultivar from root to shoot was higher than inefficient cultivar. In the same conditions, the capability of Zn-inefficient cultivar in Cu translocation from root to shoot was lower than other cultivars. In general, it seems that in Zn deficiency conditions, there are antagonistic effects among Zn, Cu and Mn and synergistic effects between Zn and Fe in the root. Also, in Zn sufficient conditions, there were synergistic effects among all studies micronutrients which include Zn, Fe, Cu, and Mn.展开更多
Bisphenol A(BPA)is an industrial pollutant that can cause immune impairment.Selenium acts as an antioxidant,as selenium deficiency often accompanies oxidative stress,resulting in organ damage.This study is the first t...Bisphenol A(BPA)is an industrial pollutant that can cause immune impairment.Selenium acts as an antioxidant,as selenium deficiency often accompanies oxidative stress,resulting in organ damage.This study is the first to demonstrate that BPA and/or selenium deficiency induce pyroptosis and ferroptosis-mediated thymic injury in chicken and chicken lymphoma cell(MDCC-MSB-1)via oxidative stress-induced endoplasmic reticulum(ER)stress.We established a broiler chicken model of BPA and/or selenium deficiency exposure and collected thymus samples as research subjects after 42 days.The results demonstrated that BPA or selenium deficiency led to a decrease in antioxidant enzyme activities(T-AOC,CAT,and GSH-Px),accumulation of peroxides(H2O2 and MDA),significant upregulation of ER stress-relatedmarkers(GRP78,IER 1,PERK,EIF-2α,ATF4,and CHOP),a significant increase in iron ion levels,significant upregulation of pyroptosis-related gene(NLRP3,ASC,Caspase1,GSDMD,IL-18 and IL-1β),significantly increase ferroptosis-related genes(TFRC,COX2)and downregulate GPX4,HO-1,FTH,NADPH.In vitro experiments conducted in MDCC-MSB-1 cells confirmed the results,demonstrating that the addition of antioxidant(NAC),ER stress inhibitor(TUDCA)and pyroptosis inhibitor(Vx765)alleviated oxidative stress,endoplasmic reticulum stress,pyroptosis,and ferroptosis.Overall,this study concludes that the combined effects of oxidative stress and ER stress mediate pyroptosis and ferroptosis in chicken thymus induced by BPA exposure and selenium deficiency.展开更多
Objective:Patients with homologous recombination deficiency(HRD)demonstrate distinct clinicopathological and prognostic features.However,standardised and clinically validated HRD detection methodologies specifically t...Objective:Patients with homologous recombination deficiency(HRD)demonstrate distinct clinicopathological and prognostic features.However,standardised and clinically validated HRD detection methodologies specifically tailored for non-small cell lung cancer(NSCLC)have yet to be established.Further research is needed to clarify the precise role and clinical implications of HRD in NSCLC.Methods:A cohort of 580 treatment-naive NSCLC patients was retrospectively enrolled.Comprehensive genomic profiling(CGP)was performed for all patients,and HRD status was evaluated using two genomic scar score(GSS)-based algorithms:a machine learning-based GSS(ML-GSS)and a continuous linear regression-based GSS(CLR-GSS).To assess the diagnostic performance(sensitivity and specificity)of the ML-GSS and CLR-GSS algorithms for HRD detection,immunohistochemical(IHC)staining was conducted for two HRD-related biomarkers:Schlafen 11(SLFN11)and RAD51.Survival analysis,including progression-free survival(PFS),along with multivariable Cox proportional hazards models,was performed to compare the prognostic value of the two HRD algorithms.Results:Among all patients,146(25.2%)and 46(7.9%)were classified as HRD-positive(HRD+)by ML-GSS and CLR-GSS,respectively.Using SLFN11 IHC expression as the reference standard,comparative analysis demonstrated that ML-GSS exhibited significantly higher sensitivity but lower specificity than CLR-GSS.This trend was consistently observed in RAD51 staining analysis.Compared to HRD-negative(HRD-)patients,MLGSS-defined HRD+cases displayed distinct clinicopathological and genomic features,including a higher prevalence of homologous recombination(HR)-related genes mutations,BRCA1/2 mutations,TP53 mutations,elevated tumor mutation burden(TMB),and increased copy number variations(CNVs).In contrast,CLR-GSSdefined HRD+patients were only enriched for BRCA1/2 mutations,TP53 mutations,and elevated TMB.Furthermore,ML-GSS-defined HRD+status was associated with significantly worse prognosis following first-line therapy compared to HRD-patients.Univariate and multivariable Cox analyses identified ML-GSS-defined HRD+and TP53 mutations as significant predictors and independent risk factors,respectively.No such associations were observed in the CLR-GSS-defined HRD+cohort.Conclusions:ML-GSS demonstrated superior performance to CLR-GSS in assessing chromosomal instability(CIN)and showed greater clinical utility.We recommend the ML-GSS algorithm as a robust and clinically validated tool for HRD/CIN evaluation in NSCLC.Furthermore,ML-GSS-defined HRD+status was identified as both a significant predictor and an independent risk factor.展开更多
Objective To explore the clinical characteristics and methods for syndrome differentiation prediction,as well as to construct a predictive model for Qi deficiency and blood stasis syndrome in patients with acute ische...Objective To explore the clinical characteristics and methods for syndrome differentiation prediction,as well as to construct a predictive model for Qi deficiency and blood stasis syndrome in patients with acute ischemic stroke(AIS).Methods This study employed a retrospective case-control design to analyze patients with AIS who received inpatient treatment at the Neurology Department of The First Hospital of Hunan University of Chinese Medicine from January 1,2013 to December 31,2022.AIS patients meeting the diagnostic criteria for Qi deficiency and blood stasis syndrome were stratified into case group,while those without Qi deficiency and blood stasis syndrome were stratified into control group.The demographic characteristics(age and gender),clinical parameters[time from onset to admission,National Institutes of Health Stroke Scale(NIHSS)score,and blood pressure],past medical history,traditional Chinese medicine(TCM)diagnostic characteristics(tongue and pulse),neurological symptoms and signs,imaging findings[magnetic resonance imaging-diffusion weighted imaging(MRI-DWI)],and biochemical indicators of the two groups were collected and compared.The indicators with statistical difference(P<0.05)in univariate analysis were included in multivariate logistic regression analysis to evaluate their predictive value for the diagnosis of Qi deficiency and blood stasis syndrome,and the predictive model was constructed by receiver operating characteristic(ROC)curve analysis.Results The study included 1035 AIS patients,with 404 cases in case group and 631 cases in control group.Compared with control group,patients in case group were significantly older,had extended onset-to-admission time,lower diastolic blood pressure,and lower NIHSS scores(P<0.05).Case group showed lower incidence of hypertension history(P<0.05).Regarding tongue and pulse characteristics,pale and dark tongue colors,white tongue coating,fine pulse,astringent pulse,and sinking pulse were more common in case group.Imaging examinations demonstrated higher proportions of centrum semiovale infarction,cerebral atrophy,and vertebral artery stenosis in case group(P<0.05).Among biochemical indicators,case group showed higher proportions of elevated fasting blood glucose and glycated hemoglobin(HbA1c),while lower proportions of elevated white blood cell count,reduced hemoglobin,and reduced high-density lipoprotein cholesterol(HDL-C)(P<0.05).Multivariate logistic regression analysis identified significant predictors for Qi deficiency and blood stasis syndrome including:fine pulse[odds ratio(OR)=4.38],astringent pulse(OR=3.67),superficial sensory abnormalities(OR=1.86),centrum semiovale infarction(OR=1.57),cerebral atrophy(OR=1.55),vertebral artery stenosis(OR=1.62),and elevated HbA1c(OR=3.52).The ROC curve analysis of the comprehensive prediction model yielded an area under the curve(AUC)of 0.878[95%confidence interval(CI)=0.855-0.900].Conclusion This study finds out that Qi deficiency and blood stasis syndrome represents one of the primary types of AIS.Fine pulse,astringent pulse,superficial sensory abnormalities,centrum semiovale infarction,cerebral atrophy,vertebral artery stenosis,elevated blood glucose,elevated HbA1c,pale and dark tongue colors,and white tongue coating are key objective diagnostic indicators for the syndrome differentiation of AIS with Qi deficiency and blood stasis syndrome.Based on these indicators,a syndrome differentiation prediction model has been developed,offering a more objective basis for clinical diagnosis,and help to rapidly identify this syndrome in clinical practice and reduce misdiagnosis and missed diagnosis.展开更多
using a WZD—1 microcirculation microscope,we observed the tongue tipand nail-bed microcirculation of uremic patients with deficiency of kidney-yangbefore and after blood dialysis.The results showed that the pathologi...using a WZD—1 microcirculation microscope,we observed the tongue tipand nail-bed microcirculation of uremic patients with deficiency of kidney-yangbefore and after blood dialysis.The results showed that the pathological basis ofuremia with deficiency of kidney-yang may be microcirculation disturbance,in-crease of metabolites and water retention.The effusion from capillary loops intongue tip may be one of the pathogenetic factors of a swollen and jaggedtongue.The flow rate of blood in capillary loops in the nail-bed was apparentlyabnormal and markedly improved after blood dialysis.The weighted integral ofnail-bed microcirculation decreased from moderately abnormal (4.99±1.52) toapproximately normal (1.98±0.97) (P【0.01).Microcirculation seems to be a sensi-tive criterion for reflecting the pathologic changes of uremia with deficiency ofkidney-yang.展开更多
OBJECTIVE:To utilize the Traditional Chinese Medicine constitution(TCMC)as a complementary and alternative approach for early disease detection and treatment,with a focus on Yin and Yang deficiency constitutions,which...OBJECTIVE:To utilize the Traditional Chinese Medicine constitution(TCMC)as a complementary and alternative approach for early disease detection and treatment,with a focus on Yin and Yang deficiency constitutions,which serve as key references for disease prevention and management.METHODS:The dataset containing the data of Yin and Yang deficiency constitution was identified through the Gene Expression Omnibus database.This database was used for differential expression genes(DEGs)analysis and weighted gene co-expression network analysis(WGCNA),and the characteristic genes were then obtained in the dataset using a machine learning method.The hub genes of Yin and Yang deficiency constitution were obtained after analysis using the above three methods,and the hub genes were enriched and analyzed.Subsequently,the hub genes of Yin and Yang deficiency constitution were validated using external datasets.Receiver operating characteristic(ROC)analysis was used on each hub genes of the two groups to further understand their diagnostic performance.The mi RNA–lnc RNA-gene network was used to further analyze the hub genes.Immunoinfiltration and gene set enrichment analysis were performed on the shared hub genes.RESULTS:The GSE87474 dataset was used for DEGs analysis and WGCNA.Using machine learning analyses,we identified 15 and 14 hub genes for Yin and Yang deficiency constitutions,respectively.The results of enrichment analyses showed that Yin deficiency constitution was associated with interleukin-17 signaling pathway,whereas Yang deficiency constitution was associated with glycosaminoglycan biosynthesis–keratan sulfate.The validation dataset GSE56116 showed statistically significant data for s-adenosylmethionine sensor upstream of MTORC1(SAMTOR,also named C7orf60),cofilin 2(CFL2),cytohesin 1 interacting protein(CYTIP),G protein-coupled receptor 183(GPR183),hippocampus abundant transcript 1(HIAT1),kelch like family member 15(KLHL15),mitogen-activated protein kinase 6(MAPK6),and prostaglandin-endoperoxide synthase 2(PTGS2)in Yin deficiency and fucosyltransferase 8(FUT8),TATA-box binding protein associated factor,RNA polymerase I subunit D(TAF1D),zinc finger protein 24(ZNF24),MAPK6,and leptin receptor overlapping transcript like 1(LEPROTL1)in Yang deficiency.The ROC results indicated that these genes have diagnostic value.MAPK6 is a shared hub gene for Yin and Yang deficiencies.CONCLUSIONS:This study identified C7orf60,CFL2,CYTIP,GPR183,HIAT1,KLHL15,MAPK6,and PTGS2 in Yin deficiency and FUT8,TAF1D,ZNF24,MAPK6,and LEPROTL1 in Yang deficiency as potential biomarkers,providing insights into their pathogenesis.This theory not only guides the diagnostic approach in TCM but also extends its influence to various scientific research fields.展开更多
Zinc(Zn)is an essential micronutrient for both plants and humans.Zn deficiency is common in many paddy fields and reduces yield and grain Zn content(GZC).To accelerate breeding for improved GZC and Zn deficiency toler...Zinc(Zn)is an essential micronutrient for both plants and humans.Zn deficiency is common in many paddy fields and reduces yield and grain Zn content(GZC).To accelerate breeding for improved GZC and Zn deficiency tolerance(ZDT)rice varieties,it is important to identify genes regulating Zn homeostasis.In this study,a member of the Ser/Thr protein phosphatase family,LOC_Os07g48840(named as OsGZ7),was found to contributed to ZDT and GZC in rice.The expression of OsGZ7 in roots and shoots was inhibited by Zn deficiency and toxicity,but induced by iron(Fe),manganese(Mn),and copper(Cu)deficiency,as well as chromium toxicity.OsGZ7 localized to the cytoplasm and was expressed in all tissues during the tillering,flowering,and grain-filling stages,particularly in the leaf blade and leaf sheath.At the seedling stage,knockout of OsGZ7 enhanced ZDT and increased Zn accumulation in both roots and shoots.At the maturity stage,knockout of OsGZ7 enhanced GZC,while overexpression of OsGZ7 reduced GZC.RNA-seq analysis suggested that OsGZ7 might regulate Zn homeostasis by affecting metal binding,hormone signal transduction,and oxidoreductase activity.Taken together,our findings indicate that OsGZ7 contributes to ZDT and Zn accumulation in rice.展开更多
Background:Iron facilitates key biological functions underpinning sports performance,and up to 60%of female athletes experience iron deficiency.However,the effects of iron deficiency on sports performance in female at...Background:Iron facilitates key biological functions underpinning sports performance,and up to 60%of female athletes experience iron deficiency.However,the effects of iron deficiency on sports performance in female athletes is unclear,as are the degree of benefits of iron supplementation(FeSup).This study characterizes the effects of iron deficiency and FeSup on sports performance in high-level female athletes.Methods:Searches of the electronic databases MEDLINE,SPORTDiscus,Web of Science,Scopus,and CINAHL were performed in July 2023.Studies were included that evaluated the effects of iron deficiency or FeSup on sports performance in high-level(maximal oxygen uptake(VO2max)>45 mL/kg/min,or trained>5 h/week)iron deficient(ID)(serum ferritin(sFer)<40 mg/L)female athletes.Studies were assessed using a modified Downs and Black Quality Assessment Checklist.Results:A total of 23 studies comprising 669 athletes(age range:13-47 years)across 16 sports were included in the review.Iron deficiency negatively affects endurance performance by 3%-4%.However,endurance performance improved by 2%-20%when ID athletes were treated with 100 mg/day of elemental iron for up to 56 days via oral supplementation,or bi-daily via parenteral administration over 8-10 days.ID nonanemic athletes with low sFer stores may be predisposed to reduced maximal aerobic capacity.However,maximal aerobic capacity improved by 6%-15%following 16 mg/day-100 mg/day of elemental iron for 36-126 days.Isokinetic strength and anaerobic power performance may be impeded(-23%to+4%)among ID athletes,but the effect of FeSup on anaerobic power varied markedly(-5%to+9%)following 100 mg/day of elemental iron over 42-56 days,or 100 mg of elemental iron bi-daily over 8-10 days.The quality of studies was moderate(77%),ranging from low(57%)to high(100%).Moststudies(n=18)contained group sizes-20 athletes,thus limiting the likelihood of detecting significant effects(statistical power>0.80).Conclusion:High-level ID female athletes experience a negative impact on endurance performance,which can be improved by supplementing with»100 mg of elemental iron per day or bi-daily.The decrements in other performance parameters characterizing a range of sports coincide with the severity of iron deficiency.展开更多
BACKGROUND Patients with colorectal cancer(CRC)exhibiting microsatellite instability(MSI)-high generally demonstrate a favorable response to immunotherapy.In contrast,the efficacy of immunotherapy in microsatellite-st...BACKGROUND Patients with colorectal cancer(CRC)exhibiting microsatellite instability(MSI)-high generally demonstrate a favorable response to immunotherapy.In contrast,the efficacy of immunotherapy in microsatellite-stable(MSS)CRC patients is considerably restricted.This study sought to evaluate the effectiveness of immu-notherapy in MSS patients characterized by homologous recombination defi-ciency(HRD)as opposed to those with homologous recombination proficiency(HRP).AIM To investigate and compare the clinicopathological characteristics,treatment modalities,and outcomes between the HRD and HRP groups in CRC.METHODS Next-generation sequencing was performed on 268 CRC patients to identify tumor-associated genetic alterations and assess their HRD scores and MSI status.Patients with HRD-related gene alterations or an HRD score≥30 were classified into the HRD group,while the remaining patients were assigned to the HRP group.Clinical data,including staging and treatment regimens,were collected for analysis.Cox regression and Kaplan-Meier survival curves were employed to evaluate whether the HRD group demonstrated improved survival outcomes following immunotherapy treatment.RESULTS Among the 268 patients,64 were classified into the HRD group,which had a higher proportion of early-stage CRC diagnoses compared to the HRP group.Kaplan-Meier survival curves indicated significantly better survival rates in the HRD group compared to the HRP group across all cohorts,as well as among MSS patients treated with immunotherapy(P<0.05).CONCLUSION This study demonstrates that CRC patients with HRD have a more favorable prognosis and suggests that HRD status could serve as a predictive marker for immunotherapy response in MSS patients.展开更多
Iron deficiency anemia(IDA)is a nutritional deficiency disease with a high incidence rate worldwide.Bioactive peptides are safe and effective,have multiple functions and can serve as potential candidates for alleviati...Iron deficiency anemia(IDA)is a nutritional deficiency disease with a high incidence rate worldwide.Bioactive peptides are safe and effective,have multiple functions and can serve as potential candidates for alleviating IDA.In this study,the anti-anemia effects of tuna dark muscle peptides were explored in a dietinduced IDA mouse model.The results showed that tuna dark muscle peptides alleviated the IDA phenotype,oxidative stress and iron metabolism.In addition,tuna dark muscle peptides reversed gut microbiota dysbiosis in IDA mice.Furthermore,the transplanted fecal microbiota from tuna dark muscle peptide-treated mice also alleviated IDA symptoms and regulated iron metabolism and the gut microbiota,indicating that the antianemic effects were at least partially mediated by the gut microbiota.Thus,we identified a new and safe prebiotic material to alleviate IDA and provided ideas for the development of peptides.At the same time,these data also provided a theoretical basis for fecal microbiota transplantation to alleviate IDA.展开更多
Background:Constitutional mismatch repair deficiency(CMMRD)is a rare disorder resulting from biallelic germline pathogenic variants in mismatch repair genes.This study described the molecular profile of two metachrono...Background:Constitutional mismatch repair deficiency(CMMRD)is a rare disorder resulting from biallelic germline pathogenic variants in mismatch repair genes.This study described the molecular profile of two metachronous brain tumors and a patient-derived xenograft(PDX)from a Brazilian child with CMMRD.Methods:After PDX development,methylation array,whole exome sequencing,and Nano String techniques were applied to describe the genetic landscape of CMMRD.Results:A 6½-year-old girl was diagnosed with Sonic Hedgehog(SHH)-activated medulloblastoma and somatic TP53-mutant.After surgery and radiochemotherapy,she remained free of disease progression.At 10 years and 3 months,she developed a diffuse pediatric-type high-grade glioma(dp HGG).The child had a family history of cancer,and subsequent investigation revealed a biallelic germline variant on MSH6(c.3556+1G>A)with the absence of protein expression in both normal and tumor tissue.A PDX model of the dp HGG was developed.The methylation profile confirmed the diagnosis of both brain tumors and PDX,refining the classification of dp HGG,Rtk1 subtype,subclass A,with an actionable alteration on Platelet-derived growth factor receptor A(PDGFRA).Exome analysis showed high tumor mutational burden,with 3019,540,and 1049 pathogenic variants in the medulloblastoma,dp HGG,and PDX,respectively.Only the medulloblastoma exhibited microsatellite instability.The CD24,CD47,and CD276 immune checkpoints had elevated messenger RNA levels,yet no programmed death ligand 1 expression was observed in CMMRD-derived tumors.Conclusion:We report an extensive molecular profile of a CMMRD patient,and the developed PDX model can be applied to explore new therapeutic approaches for CMMRD-associated brain tumors.展开更多
Brassica napus(oilseed rape)is sensitive to boron(B)deficiency and exhibits young leaf curling in response to low-B stress at the seedling stage,which leads to reduced photosynthesis and plant growth.So far,no gene ha...Brassica napus(oilseed rape)is sensitive to boron(B)deficiency and exhibits young leaf curling in response to low-B stress at the seedling stage,which leads to reduced photosynthesis and plant growth.So far,no gene has been identified to be involved in B deficiency induced leaf curling.Our previous results showed the transcription factor BnaA1.WRKY53 might be involved in B-deficiency tolerance.However,altered BnaA1.WRKY53 expression does not influence B concentration in shoot,root and leaf cell walls,which suggests Bna A1.WRKY53 might be involved in other biological processes.Indeed,phenotypic and anatomical analyses revealed that BnaA1.WRKY53 negatively regulated the leaf curling induced by leaf epinasty by suppressing the overexpansion of palisade cells under B deficiency.Further transcriptome enrichment analysis of differentially expressed genes(DEGs)between wild-type and BnaA1.WRKY53overexpression line showed auxin response pathway was enriched.In addition,Arabidopsis DR5::GFP auxin reporter line showed B deficiency caused predominant auxin signal accumulation in the adaxial side and concomitant adaxial cell expansion,which indicated that B deficiency may induce leaf curling by altering auxin distribution.Phytohormone quantification and gene expression analysis demonstrated that BnaA1.WRKY53 prevent auxin overaccumulation in leaves by suppressing auxin biosynthetic genes under B deficiency.Furthermore,exogenous 1-naphthlcetic acid(NAA)treatment experiments revealed that high auxin could induce leaf curling and BnaA1.WRKY53 expression.Overall,these findings demonstrate that auxin and the transcription factor BnaA1.WRKY53 synergistically regulate leaf curling to maintain an optimal leaf area under B deficiency,and provide novel insights into the resistance mechanisms against B-deficiency-induced leaf curling in oilseed rape.展开更多
The trace element selenium(Se)occurs naturally throughout the earth.Se deficiency has been linked to impaired breast health and other diseases in human and animals.Compared to severe Se deficiency,marginal dietary Se ...The trace element selenium(Se)occurs naturally throughout the earth.Se deficiency has been linked to impaired breast health and other diseases in human and animals.Compared to severe Se deficiency,marginal dietary Se deficiency accusers more frequently in low-Se regions.Therefore,to investigate the Se status and inflammatory response of the mammary gland under marginal dietary Se levels,an lipopolysaccharide(LPS)induced mouse mastitis model was established.Mice were fed with moderate Se diet(0.087 mg•kg^(-1) Se),adequate Se diet(0.15 mg•kg^(-1) Se)or excessive Se diet(1.5 mg•kg^(-1) Se)for 60 days.Se status and inflammatory factors were investigated.Results showed that the Se status of mammary gland correlated with dietary Se levels.Marginal Se deficiency exacerbated mammary tissue histopathology;increased the mRNA level of inflammatory genes tumor necrosis factor alpha(TNF-α),interleukin-1β(IL-1β)and cyclooxygenase-2(COX-2);and enhanced the phosphorylation of NF-κB p65 in mammary gland tissues.Supplementation of Se in diet higher than recommended levels reduced the inflammatory reaction of mammary glands in LPS-induced mastitis model and provided a protective effect.展开更多
Kidney-yang deficiency syndrome(KYDS)is a diagnostic pattern in the traditional Chinese medicine.Studies have shown that KYDS is related to the functional disorder of hormones of the hypothalamic-pituitary-target glan...Kidney-yang deficiency syndrome(KYDS)is a diagnostic pattern in the traditional Chinese medicine.Studies have shown that KYDS is related to the functional disorder of hormones of the hypothalamic-pituitary-target gland axes.The standard procedure used to mimic KYDS is the injection of a high dose of exogenous glucocorticoid(hydrocortisone and corticosterone).Such a model showed symptoms such as exhaustion,body twists,cold limbs,lying crowded together,decreased rectal temperature,sexual dysfunction,decreased reaction speed,reduced spontaneous activity,hair loss,loss of appetite,and weight loss.Moreover,the model manifested an imbalance in mutual control among the hormones of the pituitary-target gland axes,including adrenocorticotrophic hormone,CORT,CRH,thyroid-stimulating hormone,triiodothyronine,thyroxine,T,E2,follicle-stimulating hormone,luteinizing hormone,and 17-OHCS.展开更多
基金Supported by the National Natural Science Foundation of China:Study on the Mechanism of Suspension Moxibustion with Moxa Stick in Treating Hydrocortisone Rats with Kidney-Yang Deficiency based on Hippocampus(amygdala)-HPA Axis(No.81660817)。
文摘OBJECTIVE:To investigated the effects of suspended moxibustion stimulating Shenshu(BL23)and Guanyuan(CV4)acupoints on the amygdala and HPA axis in our rat model and elucidated the possible molecular mechanisms of moxibustion on kidney-Yang deficiency symptom pattern(KYDS).METHODS:Sixty male Sprague Dawley rats were randomly divided into a control group(n=12)and an experimental group(n=48).Rats in the experimental group were given intramuscular injections of hydrocortisone to establish a KYDS model.The 48 rats successfully modeled were then randomly divided into a model group(model,n=12),a carbenoxolone intraperitoneal injection group(CBX,n=12),a moxibustion group(moxi,n=12),and a moxi+CBX group(n=12).In the moxi,the Shenshu(BL23)and Guanyuan(CV 4)acupoints were treated with moxibustion for 14 d.After treatment,measures were taken of serum levels of corticosterone(CORT),adrenocorticotropic hormone(ACTH),and corticotropinreleasing hormone(CRH).The expression of mineralocorticoid receptors(MRs),glucocorticoid receptors(GRs),11beta-hydroxysteroid dehydrogenase type 1(11β-HSD1),CRH,and ACTH in the rats’amygdala,hypothalamus,or pituitary(as appropriate)was detected.Data were analyzed using one-way analysis of variance.RESULTS:Compared with those of the control group,the serum levels of CRH,ACTH,and CORT;the mRNA and protein expressions of MR,GR,and 11β-HSD1 in the amygdala;the mRNA and protein expressions of 11β-HSD1 in the hypothalamus;the CRH mRNA expression in the amygdala and hypothalamus;and the ACTH mRNA expression in the pituitary of the rats in the model group were all significantly decreased(P<0.05 or 0.01).After treatment with moxibustion,all the aforementioned observation indices except for 11β-HSD1 m RNA expression were ameliorated compared with those in the model group(P<0.05 or 0.01).CONCLUSIONS:Suspended moxibustion can effectively improve the serum levels of ACTH,CRH,and CORT and can up-regulate the mRNA and protein expressions of MR,GR,11β-HSD1,CRH,and ACTH in the amygdala and hypothalamus of KYDS rats.This may be one of the molecular mechanisms with which moxibustion alleviates KYDS.
基金supported by the National Natural Science Foundation of China(Grant No.81673996,81904220)the Jiangmen Association for Science and Technology-Youth science and technology talent lifting project(Grant No.2022-2023).
文摘Background:In traditional Chinese medicine,You-Gui-Wan(YGW)is typically used to treat osteoporosis associated with kidney-yang deficiency.However,there have been few mechanistic studies on the effectiveness of kidney-yang deficiency-type osteoporosis with YGW.To further clarify the role of YGW in the effect of osteoporosis with kidney-yang deficiency,the study analyzed the therapeutic advantages of YGW by comparing the therapeutic effects of YGW and alendronate(ALN)on osteoporosis with kidney-yang deficiency.Methods:SPF female SD rats were randomly divided into control,osteoporosis,osteoporosis with kidney-yang deficiency,osteoporosis with kidney-yang deficiency+YGW and osteoporosis with kidney-yang deficiency+ALN groups.Except for the control group,osteoporosis was induced by the removal of bilateral ovaries.After 12 weeks,rats with osteoporosis in the kidney-yang deficiency group had kidney-yang deficiency syndrome triggered by hydrocortisone for 14 days.Rats were treated with YGW or ALN for 12 weeks.The weights of rats were recorded.Hematoxylin-eosin staining staining was used to observe pathological changes in bone trabeculae,liver,spleen,and kidneys of rats.Depletion of the growth plate cartilage of rats in different groups was observed by safranine-O staining.The expression of osteoclast key indices(ACP)and osteoblast key indices(ALP)in the bone tissue of rats in the different groups was observed by immunohistochemical staining.The expression of bone resorption-related indicators(TRAP and NXT-1),bone formation-related indicators(BALP,BGP,and P1NP),and major indicators of kidney-yang deficiency(ACTH,T3,T4,cAMP,and cGMP)were observed using an ELISA detection kit.The expression levels of the main indices of liver function(ALT and AST)were detected in different groups.Results:The differences between the osteoporosis with kidney-yang deficiency group and osteoporosis group were that the weight of rats and the expression of ACTH,T3,T4,and cAMP decreased significantly,and the expression of cGMP increased in the osteoporosis with kidney-yang deficiency group.Moreover,both YGW and ALN effectively improved the symptoms of osteoporosis,including the injury of bone trabeculae and growth plates,as well as the expression of bone metabolism-related indicators.However,unlike ALN,YGW simultaneously ameliorated the expression of key indicators of kidney-yang deficiency and prevented weight loss in rats.In addition,YGW caused no obvious damage to the liver,spleen,or kidney,whereas ALN led to liver cirrhosis.Conclusion:The results reveal that YGW plays a crucial part in osteoporosis with kidney-yang deficiency,increases bone mineral density,and improves bone metabolism indicators,and is safe and efficient for the efficacy of osteoporosis with kidney-yang deficiency.YGW might have a better therapeutic effect on osteoporosis in patients with kidney-yang deficiency.Therefore,alendronate should be used cautiously in patients with osteoporosis and poor liver function.
基金Supported by National Natural Science Foundation for Young Scholars of China(Study on the Mechanism of Kidney-Yang Deficiency Regulation with Yougui Pill Base on Support Vector Regression Machine,No.81403153)National Natural Science Foundation of China(General Program,Study on the Mechanisms of the Premature Ovarian Failure Regulation by Herbs Couples of Cuscuta Chinessis-Radix Bupleuri in Dingjing Decoction based on RBF Artificial Neural Networks,No.81073073) and National Natural Science Foundation of China(General Program,Study on the law of compatibility of Categorized Formula for Tonifying Kidney Yang based on Rough Set,No.30973977)
文摘OBJECTIVE:To study the development mechanism of kidney-Yang deficiency through the establishment of support vector machine models of relevant hormones of the pituitary-target gland axes in rats with kidney-Yang deficiency syndrome.METHODS:The kidney-Yang deficiency rat model was created by intramuscular injection of hydrocortisone,and contents of the hormones of the pituita- ry-thyroid axis:thyroid stimulating hormone(TSH),3,3',5-triiodothyronine(T_3) and thyroxine(T_4);hormones of the pituitary-adrenal gland axis:adrenocorticotropic hormone(ACTH) and Cortisol(CORT);and hormones of the pituitary-gonadal axis:luteinizing hormone(LH),follicle-stimulating hormone(FSH),and testosterone(T),were determined in the early,middle,and advanced stages.Ten support vector regression(SVR) models of the hormones were established to analyze the mutual relationships among the hormones of the three axes.RESULTS:The feedback control action of the pituitary-adrenal axis began to lose efficacy from the middle stage of kidney-Kong deficiency.The contents all hormones of the three pituitary-target gland axes decreased in the advanced stage.Relative errors of the jackknife test of the SVR models all were less than 10%.CONCLUSION:Imbalances in mutual regulation among the hormones of the pituitary-target gland axes,especially loss of effectiveness of the pituitary-adrenal axis,is one pathogenesis of kidney-Yang deficiency.The SVR model can accurately reflect the complicated non-linear relationships among pituitary-target gland axes in rats with of kidney-Yang deficiency.
基金supported by the Sanming Project of Medicine in Shenzhen[SZZYSM202206001]National Natural Science Foundation of China[82004320 and 82374383]+3 种基金Natural Science Foundation of Guangdong Province of China[2022A1515011710 and 2022A1515010679]Shenzhen Science and Technology Innovation Committee[JCYJ20220530141407017 and JCYJ20240813153619026]2024 High-quality Development Research Project of Shenzhen Bao’an Public Hospital[YNXM2024078]and Shenzhen Bao’an Chinese Medicine Hospital Research Program[BAZYY20220702].
文摘Background:“Qi deficiency”(a pathological state where the body’s vital energy(Qi)is insufficient or weakened,impairing physiological functions and diminishing the body’s ability to perform daily activities,defend against illness,and maintain homeostasis)syndrome is considered a critical syndrome in traditional Chinese medicine(TCM)and is associated with poor prognosis in heart failure(HF).This study investigates the clinical,metabolic,and transcriptomic differences between heart failure patients with and without Qi deficiency syndrome.Methods:56 heart failure patients were evaluated using a Qi deficiency syndrome scale and divided into Qi deficiency syndrome(QD)and non-Qi deficiency(non-QD)groups based on the median score.Clinical characteristics,including baseline N-terminal pro-B-type natriuretic peptide(NT-proBNP),left ventricular ejection fraction(LVEF),total diuretic use during hospitalization,and 90-day rehospitalization rates,were compared between the groups.Differentially expressed genes(DEGs)and differential metabolites were identified,followed by enrichment analyses and validation using qPCR and Western blot in AC16 cardiomyocytes.Results:QD patients exhibited significantly higher NT-proBNP levels,lower LVEF,and increased 90-day rehospitalization rates.Metabolomic profiling revealed lipid metabolism disruptions,notably in linoleic acid and phospholipid pathways.Transcriptomic analysis highlighted 17 DEGs,including CISD2,a critical mitochondrial regulator,which was downregulated in QD patients.Correlation analysis identified significant associations between DEGs(e.g.,CISD2,BPGM)and lipid metabolites such as PC(16:0/P-16:0).Functional knockdown of CISD2 in AC16 cells led to upregulation of lipid oxidation enzymes ALOX15 and CYP1A2,linking CISD2 dysfunction to lipid metabolic dysregulation.Conclusion:Qi deficiency is associated with more severe heart failure symptoms,worse prognosis,and distinct metabolic and transcriptomic profiles,particularly in lipid metabolism.CISD2 emerges as a potential therapeutic target,offering new avenues for integrating molecular insights with TCM approaches to optimize HF management.
基金funded by the Entrusted service project of Shaanxi Administration of Traditional Chinese Medicine(ZYJXG-L23001)2023 Sanqin Talent Special Support Program Innovation and Entrepreneurship Team Project,and Sci-Tech Innovation Talent System Construction Program of Shaanxi University of Chinese Medicine(2023).
文摘Background:Panacis Quinquefolii Radix(PQR)is known for its ability to nourish“Qi”(it serves as the driving force for the functional activities of the body’s organs and meridians,promoting and regulating various physiological functions)and“Yin”(it represents the material foundation of the human body.It plays a role in nourishing,moistening,and cooling the body).Notoginseng Radix et Rhizoma(NRR)is recognized for its properties of resolving blood stasis(it refers to a pathological condition characterized by impaired or stagnant blood circulation within the body).Changes in the compatibility ratio of these herbs often lead to variations in their chemical composition and efficacy.However,the specific alterations in chemical composition and efficacy resulting from compatibility adjustments remain unclear.We aimed to compare the material basis and their effects of different compatibility ratios of PQR and NRR on“Qi”deficiency and blood stasis syndrome(QBS).Methods:This study employed UPLC-Q/TOF-MS to identify effective compounds in the compatibility of PQR and NRR and utilized UPLC-TQ-MS/MS to analyze the dissolution of 16 saponins in PQR and NRR at 9 different ratios.A rat model of QBS was established,and the efficacy of PQR and NRR in treating this syndrome was assessed using hemorheology and coagulation analyses.Results:The study results show that PQR and NRR exhibit significant efficacy,effectively reducing blood viscosity induced by platelet aggregation and lowering inflammatory markers such as IL-6,IL-10,TXB2 and ET associated with vascular injury.Moreover,this combination regulates ATP and ADP levels,enhances energy metabolism,and promotes overall health.A total of 104 compounds in the compatibility of PQR and NRR were identified.The ratios of 1:2 and 1:3 showed the highest total saponin content,but the ratio of 1:1 demonstrated a superior pharmacological effect for the treatment of QBS.Conclusion:In summary,the compatibility of PQR and NRR not only shows the complex interactions between traditional Chinese medicinal materials,but also provides a new idea and method for the treatment of QBS.
基金supported by grants from the National Scientific Foundation of China(39900126,30772683)the Natural Science Foundation of Shaanxi Province(SJ08-ZT10)the Tackle Key Problem in Scientific and Technological Program of Shaanxi Province(2008K04-02).
文摘With the aim of investigating the ability and possible mechanism of Chinese medicine Jinkuishenqiwan pills to inhibit the spermatgoenic arrest infertile,100 mature male rats were randomly divided into five groups:normal control group,model group,test group treated with high dosage of Jinkuishenqiwan pills,test group treated with middle dosage of Jinkuishenqiwan pills,and test group treated with low dosage of Jinkuishenqiwan pills.Except the normal group,the other four groups were made into model of kidney-yang deficiency by injecting hydrocortisone.Simultaneously,the treatment of Jinkuishenqiwan pills was also irrigated into the stomachs of the three treated groups.After 30 days,the concentration of testosterone,the sperm density and the motility rate of sperm were examined,the microstructure of testicle was observed by optical microscope.Results showed that Jinkuishenqiwan pills can inhibit the spermatgoenic arrest infertile,there exists statistical difference between test group and the model group(P<0.05).In conclusion:Chinese medicine Jinkuishenqiwan pills may have a certain therapeutic effects on the rats with kidney-yang deficiency.
文摘Deficiency or restriction of Zn absorption in soils is one of the most common micronutrients deficient in cereal plants. To investigate critical micronutrient interaction in zinc deficiency and zinc sufficient in soil, a factorial experiment based on completely randomized design (CRD) with three replications was conducted in 2023. Six wheat cultivars with different Zn efficiency were used. The cultivars were grown under Zn deficiency and adequate conditions. Results showed that in Zn deficiency conditions, with increasing Zn concentration in the roots, Fe concentrations were increased too, while the Cu and Mn concentrations decreased. In the same condition and with increasing Zn concentration in shoots, the concentrations of Fe and Mn decreased, while Cu were increased. However, by increasing Zn concentration, Fe, Cu, and Mn concentrations were increased in Zn deficiency condition in grains, as well as Zn sufficient conditions. RST (root to shoot micronutrient translocation) comparison of cultivars showed that in lack of Zn, the ability of translocation of Zn, Fe, and Mn in Zn-inefficient cultivar from root to shoot was higher than inefficient cultivar. In the same conditions, the capability of Zn-inefficient cultivar in Cu translocation from root to shoot was lower than other cultivars. In general, it seems that in Zn deficiency conditions, there are antagonistic effects among Zn, Cu and Mn and synergistic effects between Zn and Fe in the root. Also, in Zn sufficient conditions, there were synergistic effects among all studies micronutrients which include Zn, Fe, Cu, and Mn.
基金supported by the National Natural Science Foundation of China Regional Joint Innovation Fund (No.U22A20524)the Heilongjiang Province Natural Science Foundation Key projects (No.ZD2023C002).
文摘Bisphenol A(BPA)is an industrial pollutant that can cause immune impairment.Selenium acts as an antioxidant,as selenium deficiency often accompanies oxidative stress,resulting in organ damage.This study is the first to demonstrate that BPA and/or selenium deficiency induce pyroptosis and ferroptosis-mediated thymic injury in chicken and chicken lymphoma cell(MDCC-MSB-1)via oxidative stress-induced endoplasmic reticulum(ER)stress.We established a broiler chicken model of BPA and/or selenium deficiency exposure and collected thymus samples as research subjects after 42 days.The results demonstrated that BPA or selenium deficiency led to a decrease in antioxidant enzyme activities(T-AOC,CAT,and GSH-Px),accumulation of peroxides(H2O2 and MDA),significant upregulation of ER stress-relatedmarkers(GRP78,IER 1,PERK,EIF-2α,ATF4,and CHOP),a significant increase in iron ion levels,significant upregulation of pyroptosis-related gene(NLRP3,ASC,Caspase1,GSDMD,IL-18 and IL-1β),significantly increase ferroptosis-related genes(TFRC,COX2)and downregulate GPX4,HO-1,FTH,NADPH.In vitro experiments conducted in MDCC-MSB-1 cells confirmed the results,demonstrating that the addition of antioxidant(NAC),ER stress inhibitor(TUDCA)and pyroptosis inhibitor(Vx765)alleviated oxidative stress,endoplasmic reticulum stress,pyroptosis,and ferroptosis.Overall,this study concludes that the combined effects of oxidative stress and ER stress mediate pyroptosis and ferroptosis in chicken thymus induced by BPA exposure and selenium deficiency.
基金supported by the National High Level Hospital Clinical Research Funding(No.BJ-2019-195)the National High Level Hospital Clinical Research Funding(No.BJ-2023-090)。
文摘Objective:Patients with homologous recombination deficiency(HRD)demonstrate distinct clinicopathological and prognostic features.However,standardised and clinically validated HRD detection methodologies specifically tailored for non-small cell lung cancer(NSCLC)have yet to be established.Further research is needed to clarify the precise role and clinical implications of HRD in NSCLC.Methods:A cohort of 580 treatment-naive NSCLC patients was retrospectively enrolled.Comprehensive genomic profiling(CGP)was performed for all patients,and HRD status was evaluated using two genomic scar score(GSS)-based algorithms:a machine learning-based GSS(ML-GSS)and a continuous linear regression-based GSS(CLR-GSS).To assess the diagnostic performance(sensitivity and specificity)of the ML-GSS and CLR-GSS algorithms for HRD detection,immunohistochemical(IHC)staining was conducted for two HRD-related biomarkers:Schlafen 11(SLFN11)and RAD51.Survival analysis,including progression-free survival(PFS),along with multivariable Cox proportional hazards models,was performed to compare the prognostic value of the two HRD algorithms.Results:Among all patients,146(25.2%)and 46(7.9%)were classified as HRD-positive(HRD+)by ML-GSS and CLR-GSS,respectively.Using SLFN11 IHC expression as the reference standard,comparative analysis demonstrated that ML-GSS exhibited significantly higher sensitivity but lower specificity than CLR-GSS.This trend was consistently observed in RAD51 staining analysis.Compared to HRD-negative(HRD-)patients,MLGSS-defined HRD+cases displayed distinct clinicopathological and genomic features,including a higher prevalence of homologous recombination(HR)-related genes mutations,BRCA1/2 mutations,TP53 mutations,elevated tumor mutation burden(TMB),and increased copy number variations(CNVs).In contrast,CLR-GSSdefined HRD+patients were only enriched for BRCA1/2 mutations,TP53 mutations,and elevated TMB.Furthermore,ML-GSS-defined HRD+status was associated with significantly worse prognosis following first-line therapy compared to HRD-patients.Univariate and multivariable Cox analyses identified ML-GSS-defined HRD+and TP53 mutations as significant predictors and independent risk factors,respectively.No such associations were observed in the CLR-GSS-defined HRD+cohort.Conclusions:ML-GSS demonstrated superior performance to CLR-GSS in assessing chromosomal instability(CIN)and showed greater clinical utility.We recommend the ML-GSS algorithm as a robust and clinically validated tool for HRD/CIN evaluation in NSCLC.Furthermore,ML-GSS-defined HRD+status was identified as both a significant predictor and an independent risk factor.
基金National Natural Science Foundation of China(U22A20377)Natural Science Foundation of Hunan Province of China(23C0168).
文摘Objective To explore the clinical characteristics and methods for syndrome differentiation prediction,as well as to construct a predictive model for Qi deficiency and blood stasis syndrome in patients with acute ischemic stroke(AIS).Methods This study employed a retrospective case-control design to analyze patients with AIS who received inpatient treatment at the Neurology Department of The First Hospital of Hunan University of Chinese Medicine from January 1,2013 to December 31,2022.AIS patients meeting the diagnostic criteria for Qi deficiency and blood stasis syndrome were stratified into case group,while those without Qi deficiency and blood stasis syndrome were stratified into control group.The demographic characteristics(age and gender),clinical parameters[time from onset to admission,National Institutes of Health Stroke Scale(NIHSS)score,and blood pressure],past medical history,traditional Chinese medicine(TCM)diagnostic characteristics(tongue and pulse),neurological symptoms and signs,imaging findings[magnetic resonance imaging-diffusion weighted imaging(MRI-DWI)],and biochemical indicators of the two groups were collected and compared.The indicators with statistical difference(P<0.05)in univariate analysis were included in multivariate logistic regression analysis to evaluate their predictive value for the diagnosis of Qi deficiency and blood stasis syndrome,and the predictive model was constructed by receiver operating characteristic(ROC)curve analysis.Results The study included 1035 AIS patients,with 404 cases in case group and 631 cases in control group.Compared with control group,patients in case group were significantly older,had extended onset-to-admission time,lower diastolic blood pressure,and lower NIHSS scores(P<0.05).Case group showed lower incidence of hypertension history(P<0.05).Regarding tongue and pulse characteristics,pale and dark tongue colors,white tongue coating,fine pulse,astringent pulse,and sinking pulse were more common in case group.Imaging examinations demonstrated higher proportions of centrum semiovale infarction,cerebral atrophy,and vertebral artery stenosis in case group(P<0.05).Among biochemical indicators,case group showed higher proportions of elevated fasting blood glucose and glycated hemoglobin(HbA1c),while lower proportions of elevated white blood cell count,reduced hemoglobin,and reduced high-density lipoprotein cholesterol(HDL-C)(P<0.05).Multivariate logistic regression analysis identified significant predictors for Qi deficiency and blood stasis syndrome including:fine pulse[odds ratio(OR)=4.38],astringent pulse(OR=3.67),superficial sensory abnormalities(OR=1.86),centrum semiovale infarction(OR=1.57),cerebral atrophy(OR=1.55),vertebral artery stenosis(OR=1.62),and elevated HbA1c(OR=3.52).The ROC curve analysis of the comprehensive prediction model yielded an area under the curve(AUC)of 0.878[95%confidence interval(CI)=0.855-0.900].Conclusion This study finds out that Qi deficiency and blood stasis syndrome represents one of the primary types of AIS.Fine pulse,astringent pulse,superficial sensory abnormalities,centrum semiovale infarction,cerebral atrophy,vertebral artery stenosis,elevated blood glucose,elevated HbA1c,pale and dark tongue colors,and white tongue coating are key objective diagnostic indicators for the syndrome differentiation of AIS with Qi deficiency and blood stasis syndrome.Based on these indicators,a syndrome differentiation prediction model has been developed,offering a more objective basis for clinical diagnosis,and help to rapidly identify this syndrome in clinical practice and reduce misdiagnosis and missed diagnosis.
文摘using a WZD—1 microcirculation microscope,we observed the tongue tipand nail-bed microcirculation of uremic patients with deficiency of kidney-yangbefore and after blood dialysis.The results showed that the pathological basis ofuremia with deficiency of kidney-yang may be microcirculation disturbance,in-crease of metabolites and water retention.The effusion from capillary loops intongue tip may be one of the pathogenetic factors of a swollen and jaggedtongue.The flow rate of blood in capillary loops in the nail-bed was apparentlyabnormal and markedly improved after blood dialysis.The weighted integral ofnail-bed microcirculation decreased from moderately abnormal (4.99±1.52) toapproximately normal (1.98±0.97) (P【0.01).Microcirculation seems to be a sensi-tive criterion for reflecting the pathologic changes of uremia with deficiency ofkidney-yang.
基金Supported by National Natural Science Foundation of China:Establishment and Validation of a High-throughput Screening System for Traditional Chinese Medicine Against Dry Eye Disease based on transforming growth factor-βand B-cell lymphoma-2(No.81574031)2023 Hunan Provincial Department of Education Scientific Research Project:Yiguanjian Decoction Regulates Th17/Treg Cell Balance and Its Intervention Mechanism in Dry Eye with Liver Yin Deficiency Syndrome(No.23A0300)。
文摘OBJECTIVE:To utilize the Traditional Chinese Medicine constitution(TCMC)as a complementary and alternative approach for early disease detection and treatment,with a focus on Yin and Yang deficiency constitutions,which serve as key references for disease prevention and management.METHODS:The dataset containing the data of Yin and Yang deficiency constitution was identified through the Gene Expression Omnibus database.This database was used for differential expression genes(DEGs)analysis and weighted gene co-expression network analysis(WGCNA),and the characteristic genes were then obtained in the dataset using a machine learning method.The hub genes of Yin and Yang deficiency constitution were obtained after analysis using the above three methods,and the hub genes were enriched and analyzed.Subsequently,the hub genes of Yin and Yang deficiency constitution were validated using external datasets.Receiver operating characteristic(ROC)analysis was used on each hub genes of the two groups to further understand their diagnostic performance.The mi RNA–lnc RNA-gene network was used to further analyze the hub genes.Immunoinfiltration and gene set enrichment analysis were performed on the shared hub genes.RESULTS:The GSE87474 dataset was used for DEGs analysis and WGCNA.Using machine learning analyses,we identified 15 and 14 hub genes for Yin and Yang deficiency constitutions,respectively.The results of enrichment analyses showed that Yin deficiency constitution was associated with interleukin-17 signaling pathway,whereas Yang deficiency constitution was associated with glycosaminoglycan biosynthesis–keratan sulfate.The validation dataset GSE56116 showed statistically significant data for s-adenosylmethionine sensor upstream of MTORC1(SAMTOR,also named C7orf60),cofilin 2(CFL2),cytohesin 1 interacting protein(CYTIP),G protein-coupled receptor 183(GPR183),hippocampus abundant transcript 1(HIAT1),kelch like family member 15(KLHL15),mitogen-activated protein kinase 6(MAPK6),and prostaglandin-endoperoxide synthase 2(PTGS2)in Yin deficiency and fucosyltransferase 8(FUT8),TATA-box binding protein associated factor,RNA polymerase I subunit D(TAF1D),zinc finger protein 24(ZNF24),MAPK6,and leptin receptor overlapping transcript like 1(LEPROTL1)in Yang deficiency.The ROC results indicated that these genes have diagnostic value.MAPK6 is a shared hub gene for Yin and Yang deficiencies.CONCLUSIONS:This study identified C7orf60,CFL2,CYTIP,GPR183,HIAT1,KLHL15,MAPK6,and PTGS2 in Yin deficiency and FUT8,TAF1D,ZNF24,MAPK6,and LEPROTL1 in Yang deficiency as potential biomarkers,providing insights into their pathogenesis.This theory not only guides the diagnostic approach in TCM but also extends its influence to various scientific research fields.
基金supported by the National Key R&D Program of China(Grant No.2022YFE0139400)the National Natural Science Foundation of China(Grant No.31961143016)the Shenzhen Science and Technology Program,China(Grant No.JCYJ20200109150650397).
文摘Zinc(Zn)is an essential micronutrient for both plants and humans.Zn deficiency is common in many paddy fields and reduces yield and grain Zn content(GZC).To accelerate breeding for improved GZC and Zn deficiency tolerance(ZDT)rice varieties,it is important to identify genes regulating Zn homeostasis.In this study,a member of the Ser/Thr protein phosphatase family,LOC_Os07g48840(named as OsGZ7),was found to contributed to ZDT and GZC in rice.The expression of OsGZ7 in roots and shoots was inhibited by Zn deficiency and toxicity,but induced by iron(Fe),manganese(Mn),and copper(Cu)deficiency,as well as chromium toxicity.OsGZ7 localized to the cytoplasm and was expressed in all tissues during the tillering,flowering,and grain-filling stages,particularly in the leaf blade and leaf sheath.At the seedling stage,knockout of OsGZ7 enhanced ZDT and increased Zn accumulation in both roots and shoots.At the maturity stage,knockout of OsGZ7 enhanced GZC,while overexpression of OsGZ7 reduced GZC.RNA-seq analysis suggested that OsGZ7 might regulate Zn homeostasis by affecting metal binding,hormone signal transduction,and oxidoreductase activity.Taken together,our findings indicate that OsGZ7 contributes to ZDT and Zn accumulation in rice.
文摘Background:Iron facilitates key biological functions underpinning sports performance,and up to 60%of female athletes experience iron deficiency.However,the effects of iron deficiency on sports performance in female athletes is unclear,as are the degree of benefits of iron supplementation(FeSup).This study characterizes the effects of iron deficiency and FeSup on sports performance in high-level female athletes.Methods:Searches of the electronic databases MEDLINE,SPORTDiscus,Web of Science,Scopus,and CINAHL were performed in July 2023.Studies were included that evaluated the effects of iron deficiency or FeSup on sports performance in high-level(maximal oxygen uptake(VO2max)>45 mL/kg/min,or trained>5 h/week)iron deficient(ID)(serum ferritin(sFer)<40 mg/L)female athletes.Studies were assessed using a modified Downs and Black Quality Assessment Checklist.Results:A total of 23 studies comprising 669 athletes(age range:13-47 years)across 16 sports were included in the review.Iron deficiency negatively affects endurance performance by 3%-4%.However,endurance performance improved by 2%-20%when ID athletes were treated with 100 mg/day of elemental iron for up to 56 days via oral supplementation,or bi-daily via parenteral administration over 8-10 days.ID nonanemic athletes with low sFer stores may be predisposed to reduced maximal aerobic capacity.However,maximal aerobic capacity improved by 6%-15%following 16 mg/day-100 mg/day of elemental iron for 36-126 days.Isokinetic strength and anaerobic power performance may be impeded(-23%to+4%)among ID athletes,but the effect of FeSup on anaerobic power varied markedly(-5%to+9%)following 100 mg/day of elemental iron over 42-56 days,or 100 mg of elemental iron bi-daily over 8-10 days.The quality of studies was moderate(77%),ranging from low(57%)to high(100%).Moststudies(n=18)contained group sizes-20 athletes,thus limiting the likelihood of detecting significant effects(statistical power>0.80).Conclusion:High-level ID female athletes experience a negative impact on endurance performance,which can be improved by supplementing with»100 mg of elemental iron per day or bi-daily.The decrements in other performance parameters characterizing a range of sports coincide with the severity of iron deficiency.
基金Supported by Natural Science Foundation of Guangdong Province,No.2021A1515011146 and No.2023A1515010785Key Areas Research and Development Programs of Guangdong Province,No.2023B1111050009.
文摘BACKGROUND Patients with colorectal cancer(CRC)exhibiting microsatellite instability(MSI)-high generally demonstrate a favorable response to immunotherapy.In contrast,the efficacy of immunotherapy in microsatellite-stable(MSS)CRC patients is considerably restricted.This study sought to evaluate the effectiveness of immu-notherapy in MSS patients characterized by homologous recombination defi-ciency(HRD)as opposed to those with homologous recombination proficiency(HRP).AIM To investigate and compare the clinicopathological characteristics,treatment modalities,and outcomes between the HRD and HRP groups in CRC.METHODS Next-generation sequencing was performed on 268 CRC patients to identify tumor-associated genetic alterations and assess their HRD scores and MSI status.Patients with HRD-related gene alterations or an HRD score≥30 were classified into the HRD group,while the remaining patients were assigned to the HRP group.Clinical data,including staging and treatment regimens,were collected for analysis.Cox regression and Kaplan-Meier survival curves were employed to evaluate whether the HRD group demonstrated improved survival outcomes following immunotherapy treatment.RESULTS Among the 268 patients,64 were classified into the HRD group,which had a higher proportion of early-stage CRC diagnoses compared to the HRP group.Kaplan-Meier survival curves indicated significantly better survival rates in the HRD group compared to the HRP group across all cohorts,as well as among MSS patients treated with immunotherapy(P<0.05).CONCLUSION This study demonstrates that CRC patients with HRD have a more favorable prognosis and suggests that HRD status could serve as a predictive marker for immunotherapy response in MSS patients.
基金sponsored by the Natural Science Foundation of Zhejiang Province(LQ22D060002 and LTGC23C190001)Fund of State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products(ZS20190105)+1 种基金General Project of Zhejiang Provincial Department of Education(Y202146257)K.C.Wong Magna Fund of Ningbo University。
文摘Iron deficiency anemia(IDA)is a nutritional deficiency disease with a high incidence rate worldwide.Bioactive peptides are safe and effective,have multiple functions and can serve as potential candidates for alleviating IDA.In this study,the anti-anemia effects of tuna dark muscle peptides were explored in a dietinduced IDA mouse model.The results showed that tuna dark muscle peptides alleviated the IDA phenotype,oxidative stress and iron metabolism.In addition,tuna dark muscle peptides reversed gut microbiota dysbiosis in IDA mice.Furthermore,the transplanted fecal microbiota from tuna dark muscle peptide-treated mice also alleviated IDA symptoms and regulated iron metabolism and the gut microbiota,indicating that the antianemic effects were at least partially mediated by the gut microbiota.Thus,we identified a new and safe prebiotic material to alleviate IDA and provided ideas for the development of peptides.At the same time,these data also provided a theoretical basis for fecal microbiota transplantation to alleviate IDA.
基金Brazilian National Program of Genomics and Precision Health-Genomas Brasil,Grant/Award Number:MS-SECTICS-Decit/CNPq 16/2023São Paulo Research Foundation,Grant/Award Number:FAPESP-2021/07957-5+5 种基金Barretos Cancer Hospital,Grant/Award Number:13/2021National Oncology Care Support Program (PRONON),CNPq,Grant/Award Number:444217/2023-1Public Ministry of Labor Campinas (Research, Prevention, and Education of Occupational Cancer)Brazilian Ministry of Health (MoH)National Council for Scientific and Technological DevelopmentCNPq Productivity
文摘Background:Constitutional mismatch repair deficiency(CMMRD)is a rare disorder resulting from biallelic germline pathogenic variants in mismatch repair genes.This study described the molecular profile of two metachronous brain tumors and a patient-derived xenograft(PDX)from a Brazilian child with CMMRD.Methods:After PDX development,methylation array,whole exome sequencing,and Nano String techniques were applied to describe the genetic landscape of CMMRD.Results:A 6½-year-old girl was diagnosed with Sonic Hedgehog(SHH)-activated medulloblastoma and somatic TP53-mutant.After surgery and radiochemotherapy,she remained free of disease progression.At 10 years and 3 months,she developed a diffuse pediatric-type high-grade glioma(dp HGG).The child had a family history of cancer,and subsequent investigation revealed a biallelic germline variant on MSH6(c.3556+1G>A)with the absence of protein expression in both normal and tumor tissue.A PDX model of the dp HGG was developed.The methylation profile confirmed the diagnosis of both brain tumors and PDX,refining the classification of dp HGG,Rtk1 subtype,subclass A,with an actionable alteration on Platelet-derived growth factor receptor A(PDGFRA).Exome analysis showed high tumor mutational burden,with 3019,540,and 1049 pathogenic variants in the medulloblastoma,dp HGG,and PDX,respectively.Only the medulloblastoma exhibited microsatellite instability.The CD24,CD47,and CD276 immune checkpoints had elevated messenger RNA levels,yet no programmed death ligand 1 expression was observed in CMMRD-derived tumors.Conclusion:We report an extensive molecular profile of a CMMRD patient,and the developed PDX model can be applied to explore new therapeutic approaches for CMMRD-associated brain tumors.
基金supported by the National Natural Science Foundation of China(32002122,32372805)。
文摘Brassica napus(oilseed rape)is sensitive to boron(B)deficiency and exhibits young leaf curling in response to low-B stress at the seedling stage,which leads to reduced photosynthesis and plant growth.So far,no gene has been identified to be involved in B deficiency induced leaf curling.Our previous results showed the transcription factor BnaA1.WRKY53 might be involved in B-deficiency tolerance.However,altered BnaA1.WRKY53 expression does not influence B concentration in shoot,root and leaf cell walls,which suggests Bna A1.WRKY53 might be involved in other biological processes.Indeed,phenotypic and anatomical analyses revealed that BnaA1.WRKY53 negatively regulated the leaf curling induced by leaf epinasty by suppressing the overexpansion of palisade cells under B deficiency.Further transcriptome enrichment analysis of differentially expressed genes(DEGs)between wild-type and BnaA1.WRKY53overexpression line showed auxin response pathway was enriched.In addition,Arabidopsis DR5::GFP auxin reporter line showed B deficiency caused predominant auxin signal accumulation in the adaxial side and concomitant adaxial cell expansion,which indicated that B deficiency may induce leaf curling by altering auxin distribution.Phytohormone quantification and gene expression analysis demonstrated that BnaA1.WRKY53 prevent auxin overaccumulation in leaves by suppressing auxin biosynthetic genes under B deficiency.Furthermore,exogenous 1-naphthlcetic acid(NAA)treatment experiments revealed that high auxin could induce leaf curling and BnaA1.WRKY53 expression.Overall,these findings demonstrate that auxin and the transcription factor BnaA1.WRKY53 synergistically regulate leaf curling to maintain an optimal leaf area under B deficiency,and provide novel insights into the resistance mechanisms against B-deficiency-induced leaf curling in oilseed rape.
基金Supported by the Natural Science Foundation of the Heilongjiang Province of China(C2016003)China Postdoctoral Science Foundation(2015M581415)Heilongjiang Postdoctoral Fund(LBH-Z15005)。
文摘The trace element selenium(Se)occurs naturally throughout the earth.Se deficiency has been linked to impaired breast health and other diseases in human and animals.Compared to severe Se deficiency,marginal dietary Se deficiency accusers more frequently in low-Se regions.Therefore,to investigate the Se status and inflammatory response of the mammary gland under marginal dietary Se levels,an lipopolysaccharide(LPS)induced mouse mastitis model was established.Mice were fed with moderate Se diet(0.087 mg•kg^(-1) Se),adequate Se diet(0.15 mg•kg^(-1) Se)or excessive Se diet(1.5 mg•kg^(-1) Se)for 60 days.Se status and inflammatory factors were investigated.Results showed that the Se status of mammary gland correlated with dietary Se levels.Marginal Se deficiency exacerbated mammary tissue histopathology;increased the mRNA level of inflammatory genes tumor necrosis factor alpha(TNF-α),interleukin-1β(IL-1β)and cyclooxygenase-2(COX-2);and enhanced the phosphorylation of NF-κB p65 in mammary gland tissues.Supplementation of Se in diet higher than recommended levels reduced the inflammatory reaction of mammary glands in LPS-induced mastitis model and provided a protective effect.
基金funded by the Shanghai Three-Year development plan project for TCM ZY(2018–2020)-CCCX-2001-05the Clinical Characteristic Project of Acupuncture and Moxibustion of Pudong New District(PDZY-2018-0610)
文摘Kidney-yang deficiency syndrome(KYDS)is a diagnostic pattern in the traditional Chinese medicine.Studies have shown that KYDS is related to the functional disorder of hormones of the hypothalamic-pituitary-target gland axes.The standard procedure used to mimic KYDS is the injection of a high dose of exogenous glucocorticoid(hydrocortisone and corticosterone).Such a model showed symptoms such as exhaustion,body twists,cold limbs,lying crowded together,decreased rectal temperature,sexual dysfunction,decreased reaction speed,reduced spontaneous activity,hair loss,loss of appetite,and weight loss.Moreover,the model manifested an imbalance in mutual control among the hormones of the pituitary-target gland axes,including adrenocorticotrophic hormone,CORT,CRH,thyroid-stimulating hormone,triiodothyronine,thyroxine,T,E2,follicle-stimulating hormone,luteinizing hormone,and 17-OHCS.
