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2型糖尿病患者血清TIMP3、Trx-1表达及其与肠道菌群的关系
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作者 陈袁 赵倩 徐台林 《中国病原生物学杂志》 北大核心 2026年第1期50-54,共5页
目的检测2型糖尿病(T2DM)患者血清基质金属蛋白酶抑制因子3(TIMP3)、硫氧还蛋白1(Trx1)表达水平,分析血清TIMP3、Trx-1与肠道菌群的关系。方法选取2023年8月至2025年2月至本院就诊的100例T2DM患者为试验组,另选取同期至院体检健康者100... 目的检测2型糖尿病(T2DM)患者血清基质金属蛋白酶抑制因子3(TIMP3)、硫氧还蛋白1(Trx1)表达水平,分析血清TIMP3、Trx-1与肠道菌群的关系。方法选取2023年8月至2025年2月至本院就诊的100例T2DM患者为试验组,另选取同期至院体检健康者100例为对照组。收集2组临床资料,ELISA法检测2组血清TIMP3、Trx-1水平,鉴定并计算2组肠道菌群类别和水平。采用Pearson分析血清TIMP3、Trx-1与其他临床资料和肠道菌水平的相关性;采用Logistic回归分析T2DM的影响因素。结果试验组空腹血糖(FPG)(7.82±1.03 mmol/L)、胰岛素抵抗指数(HOMA-IR)(5.77±0.82)水平高于对照组(5.36±0.88 mmol/L、2.39±0.45),血清TIMP3(756.58±140.49 pg/mL)、Trx-1(13.05±2.82 ng/mL)水平低于对照组(943.25±153.22 pg/mL、16.77±3.49 ng/mL)(P<0.05)。试验组双歧杆菌(59.00%、4.38±0.74 CFU/g)、阿克曼氏菌(43.00%、4.61±0.62 CFU/g)、乳杆菌(62.00%、3.35±0.68 CFU/g)、拟杆菌(39.00%、5.13±0.92 CFU/g)阳性率及其水平均低于对照组[(86.00%、5.63±0.82 CFU/g)、(71.00%、5.57±0.76 CFU/g)、(79.00%、3.99±0.74 CFU/g)、(76.00%、7.22±1.15 CFU/g)],梭杆菌(48.00%、2.46±0.47 CFU/g)、肠球菌(66.00%、4.28±0.67 CFU/g)阳性率及其水平均高于对照组[(26.00%、2.08±0.42 CFU/g)、(35.00%、3.61±0.53 CFU/g)](P<0.05)。血清TIMP3、Trx-1与FPG(r=-0.482、-0.473)、HOMA-IR(r=-0.488、-0.476)、梭杆菌(r=-0.442、-0.431)、肠球菌(r=-0.457、-0.458)水平呈负相关,与双歧杆菌(r=0.475、0.472)、阿克曼氏菌(r=0.463、0.459)、乳杆菌(r=0.445、0.438)、拟杆菌(r=0.481、0.476)呈正相关(P<0.05)。FPG[OR(95%CI)=4.992(2.124~11.733)]、HOMA-IR[OR(95%CI)=5.103(2.133~12.207)]、梭杆菌[OR(95%CI)=3.016(1.669~5.451)]、肠球菌[OR(95%CI)=3.227(1.744~5.971)]水平升高,TIMP3[OR(95%CI)=0.282(0.193~0.412)]、Trx-1[OR(95%CI)=0.265(0.187~0.375)]、双歧杆菌[OR(95%CI)=0.388(0.255~0.591)]、阿克曼氏菌[OR(95%CI)=0.425(0.269~0.671)]、乳杆菌[OR(95%CI)=0.304(0.171~0.542)]、拟杆菌[OR(95%CI)=0.349(0.246~0.496)]水平降低是影响T2DM的危险因素(P<0.05)。结论T2DM患者血清TIMP3、Trx-1水平均下降,患者的肠道菌群紊乱,其中双歧杆菌、阿克曼氏菌、乳杆菌、拟杆菌水平降低,梭杆菌、肠球菌水平升高,且肠道菌群变化与血清TIMP3、Trx-1水平有关。 展开更多
关键词 2型糖尿病 肠道菌群 基质金属蛋白酶抑制因子3 硫氧还蛋白1 关系
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牛副流感病毒3型NP蛋白在昆虫杆状病毒系统中的表达
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作者 项钰 郭衍冰 +7 位作者 孙兴忠 郝良玉 张天宇 张艺馨 姜乐凡 周子博 王楠 曹利利 《畜牧与兽医》 北大核心 2026年第1期101-106,共6页
为表达牛副流感病毒3型(BPIV3)核衣壳蛋白(NP),利用昆虫表达系统构建pFastBAC-NP重组质粒,经转座获得重组杆粒Bacmid-NP,转染昆虫细胞(Sf9)后获得重组杆状病毒。通过Bacmid-NP感染Sf9细胞表达NP蛋白,利用高浓度咪唑洗脱纯化NP蛋白,利用... 为表达牛副流感病毒3型(BPIV3)核衣壳蛋白(NP),利用昆虫表达系统构建pFastBAC-NP重组质粒,经转座获得重组杆粒Bacmid-NP,转染昆虫细胞(Sf9)后获得重组杆状病毒。通过Bacmid-NP感染Sf9细胞表达NP蛋白,利用高浓度咪唑洗脱纯化NP蛋白,利用半数组织培养感染剂量(TCID_(50))测定病毒滴度,SDS-PAGE和Western blot分析NP蛋白的纯化效果,BCA测定蛋白浓度,并将蛋白免疫小鼠,检测免疫后抗体水平。结果:构建的Bacmid-NP采用pUC/M13通用引物验证,证实NP基因成功克隆至Bacmid杆粒;P3代重组病毒的TCID_(50)为10^(-6.86)/0.1 mL;Bacmid-NP传代后Western blot检测,可在67 ku出现特异性条带;通过SDS-PAGE对感染Bacmid-NP的Sf9细胞进行检测,结果表明上清液与沉淀均可表达;Western blot鉴定结果表明67 ku左右有特异性反应条带,说明NP蛋白可以分泌表达;采用镍柱纯化,SDSPAGE鉴定纯化效果,并将纯化蛋白与BPIV3阳性血清进行Western blot试验,结果显示纯化蛋白为单条带,可以与阳性血清特异性结合,蛋白浓度为0.596 mg/mL,免疫小鼠后血清效价可达1∶64000。综上,本试验利用昆虫表达系统成功表达了NP蛋白,为进一步建立检测方法和疫苗研制提供了技术基础。 展开更多
关键词 牛副流感病毒3 杆状病毒表达系统 NP蛋白
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Improvement Effect of Insulin Resistance of Nitraria Roborowskii Kom in Type 2 Diabetic Mice via PI3K/AKT Signaling Pathway
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作者 WU Di XU Jiyu +6 位作者 WANG Luya WU Li LI Jiaxin Banmacailang ZHAO Xiaohui ZHANG Dejun YUE Huilan 《中国现代应用药学》 北大核心 2025年第8期1255-1267,共13页
OBJECTIVE To explore hypoglycemic effect of 95%ethanol fraction of Nitraria roborowskii Kom(NRK-C)and its possible mechanism evaluated in the type 2 diabetes mellitus(T2DM)mice.METHODS The body weight,organ indices,bl... OBJECTIVE To explore hypoglycemic effect of 95%ethanol fraction of Nitraria roborowskii Kom(NRK-C)and its possible mechanism evaluated in the type 2 diabetes mellitus(T2DM)mice.METHODS The body weight,organ indices,blood glucose levels,serum biochemical indexes,as well as HE/PAS histopathological section were all analyzed to assess the hypoglycemic effect of NRK-C in T2DM mice induced by a high-fat diet(HFD)combined with six intraperitoneal injections of 35 mg·kg^(-1)of streptozotocin(STZ).The Western blotting and immunofluorescence were further applied to determine the regulatory effect of NRK-C on key signaling proteins.RESULTS The fasting blood glucose levels were significantly reduced after 7 weeks of administration of NRK-C.In addition,NRK-C could also significantly improve glucose tolerance,hepatic glycogen levels,and lipid levels(total cholesterol,triglyceride,low density lipoprotein and high density lipoprotein),and significantly reduced insulin resistance of diabetic mice,which played an important role in the antidiabetic effects.Further mechanism research demonstrated that phosphorylated PI3K expression was up-regulated and p-GSK3βexpression was up-regulated after NRK-C intervention,indicating that NRK-C might exert a potential antidiabetic effect by modulating the PI3K/AKT signaling pathway.CONCLUSION All these results suggested that NRK-C might improve T2DM and had the potential to be used as an adjunctive therapy. 展开更多
关键词 type 2 diabetes Nitraria roborowskii Kom glucose tolerance insulin resistance PI3K/AKT signaling pathway
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Minimally invasive plate osteosynthesis for distal radius fractures using a 3-point positioning technique
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作者 You-You Ye Zhao-Qing Shen +1 位作者 Chun-Ling Wu Yan-Bin Lin 《World Journal of Orthopedics》 2025年第7期92-100,共9页
BACKGROUND The volar approach with plate fixation is the gold standard for treating distal radius fractures,often requiring incision of the pronator quadratus(PQ)muscle.Preserving the PQ during surgery may facilitate ... BACKGROUND The volar approach with plate fixation is the gold standard for treating distal radius fractures,often requiring incision of the pronator quadratus(PQ)muscle.Preserving the PQ during surgery may facilitate early postoperative recovery.However,conventional minimally invasive plate osteosynthesis(MIPO)techniques frequently necessitate multiple(3-4)intraoperative fluoroscopic adjustments to achieve optimal plate positioning,which can inadvertently damage the PQ muscle.Based on our clinical observations,we developed a novel 3-point positioning technique to minimize PQ injury while ensuring accurate plate placement.Preliminary results demonstrate promising early clinical outcomes.AIM To retrospectively analyze distal radius fractures treated using the 3-point positioning-assisted MIPO technique with preservation of the PQ.METHODS The 3-point positioning technique was applied:The Kirschner wire was inserted after fluoroscopy and was correctly adjusted the position of the plate above the PQ.With the aid of Kirschner wires positioning the PQ stripping was performed only once,and the plate then placed in a correct and satisfactory position.Operation time,incision length,wrist pain score,upper extremity function disabilities of the arm,shoulder and hand(DASH)score,wrist Gartland-Werley score,wrist grip strength,and range of motion were among the quantitative variables recorded.Qualitative variables including AO fracture classification,intraoperative and postoperative complications were evaluated.RESULTS At a mean follow-up of 6.9±0.8 months,the mean scar length was 25.4±1.5 mm,the pain score was 0.7±0.6,the DASH score for the upper limb was 4.7±1.3,and the Gartland-Werley score for wrist function was 4.1±1.1 at the last follow-up.Mean flexion was 97.3%,extension was 97.0%,pronation was 98.9%,supination was 98.9%,and grip strength was 86.6%compared to contralateral values.No unfavorable intraoperative or postoperative complications occurred.CONCLUSION The 3-point positioning technique may reduce the damage to the PQ muscle and is a safe and effective method for MIPO for distal radius fractures. 展开更多
关键词 Distal radius fractures Minimally invasive plate osteosynthesis Pronator quadratus sparing technique 3-point positioning technology
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儿童进行性家族性肝内胆汁淤积症3型1例并文献复习
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作者 李睿 齐继 +2 位作者 初玉芹 王烨 张平平 《疑难病杂志》 2026年第1期104-105,共2页
报道1例进行性家族性肝内胆汁淤积症3型(PFIC3)患儿的临床及遗传特征,并进行文献复习。
关键词 进行性家族性肝内胆汁淤积症3 ABCB4基因 肝移植 诊断 治疗
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Comprehensive impact of PPARG mutations in familial partial lipodystrophy type 3:Diagnosis,therapeutic strategies
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作者 Heng-Li Lai Liu Yang 《World Journal of Diabetes》 2025年第4期310-313,共4页
This article reviews a paper in the World Journal of Diabetes.The study uncovers the link between PPARG gene mutations and metabolic disorders,such as insulin resistance,diabetes,and hypertriglyceridemia,and emphasize... This article reviews a paper in the World Journal of Diabetes.The study uncovers the link between PPARG gene mutations and metabolic disorders,such as insulin resistance,diabetes,and hypertriglyceridemia,and emphasizes the crucial role of genetic testing in precise diagnosis and personalized treatment.This article further points out that in-depth investigation into the clinical heterogeneity of PPARG mutations and their underlying mechanisms can contribute to optimizing management strategies.Meanwhile,the development of more effective targeted therapies and the conduct of extensive genomic research are of great significance for understanding familial partial lipodystrophy type 3 and related metabolic syndromes. 展开更多
关键词 Familial partial lipodystrophy type 3 Genetic testing Metabolic disorders Personalized treatment
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Prognostic value of microRNA-495-3p, adiponectin, and cardiometabolic index in type 2 diabetic nephropathy
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作者 Xu-Chun Xu He-Jing Fang Hua-Ying Huang 《World Journal of Diabetes》 2025年第7期253-261,共9页
BACKGROUND Type 2 diabetic nephropathy(T2DN)is a severe complication of diabetes mellitus,and identifying biomarkers for its prognosis remains a critical challenge.Previous studies have suggested potential roles of mi... BACKGROUND Type 2 diabetic nephropathy(T2DN)is a severe complication of diabetes mellitus,and identifying biomarkers for its prognosis remains a critical challenge.Previous studies have suggested potential roles of microRNAs(e.g.,miR-495-3p),adiponectin(ADPN),and cardiometabolic index(CMI)in metabolic and renal pathologies.However,their combined predictive value for T2DN prognosis is not well understood.AIM To explore serum miR-495-3p,ADPN,and CMI levels in T2DN and their value in predicting prognosis.METHODS A total of 98 T2DN patients(study group)and 49 type 2 diabetic patients with normal renal function(control group)were enrolled from February 2020 to February 2022.Serum levels of miR-495-3p,ADPN,and CMI were measured in both groups.Patients were followed up for 6 months to assess prognosis.Dif-ferences between groups were analyzed,and multivariate logistic regression and receiver operating characteristic(ROC)curve analyses were performed to eva-luate the predictive value of these biomarkers.RESULTS The study group exhibited significantly lower miR-495-3p levels and higher ADPN and CMI levels compared to the control group(P<0.05).Poor prognosis patients had even lower miR-495-3p and higher ADPN and CMI levels than those with good prognosis(P<0.05).Multivariate analysis identified alanine amino-transferase,aspartate aminotransferase,urea nitrogen,serum creatinine,miR-495-3p,ADPN,and CMI as independent predictors of prognosis(P<0.05).ROC analysis revealed area under the curve values of 0.762(miR-495-3p),0.902(ADPN),0.757(CMI),0.899(alanine aminotransferase),0.852(aspartate ami-notransferase),0.916(urea nitrogen),and 0.910(serum creatinine)for predicting poor prognosis(P<0.05).CONCLUSION Low miR-495-3p and high ADPN and CMI levels are linked to T2DN and poor prognosis,highlighting their potential for risk prediction and clinical management. 展开更多
关键词 Serum miR-495-3p ADIPONECTIN Cardiometabolic index type 2 diabetic nephropathy Diabetes mellitus
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Eltrombopag,an FDA-approved drug,inhibits dengue virus type 2 by targeting NS2B-NS3 protease
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作者 Xuerui Zhu Xiao Gao +8 位作者 Yan Wu Jia Lu Xinlan Chen Chenshu Zhao Haoyu Li Zhongfa Zhang Shuwen Liu Gengfu Xiao Xiaoyan Pan 《Virologica Sinica》 2025年第3期439-450,共12页
Dengue viruses(DENV)have spread throughout the world and pose a huge threat to human life.The most widespread serotype is type 2 DENV(DENV 2),which has no specific treatment.NS2B-NS3 protease plays a pivotal role in D... Dengue viruses(DENV)have spread throughout the world and pose a huge threat to human life.The most widespread serotype is type 2 DENV(DENV 2),which has no specific treatment.NS2B-NS3 protease plays a pivotal role in DENV replication because of its function in cleavage of the viral polyprotein;thus,it is considered a promising target for antiviral discovery.In this study,we developed a high-throughput screening system based on the NS2B-NS3 protease to identify candidates from an FDA-approved drug library.Eltrombopag was screened out of 3273 drugs,and demonstrated inhibition on DENV 2 at the micromolar level in vitro,significantly reducing viral loads in the targeted organs of challenged mice following intraperitoneal injection.Further mechanistic analysis showed that eltrombopag allosterically binds to the DENV 2 NS2B-NS3 protease in a reversible,noncompetitive manner,therefore inhibiting DENV 2 at the post-infection stage.In addition,eltrombopag inhibited the NS2B-NS3 proteases of DENV 4 and Zika virus,suggesting its potential as a broadspectrum antiviral agent.This study repurposed eltrombopag as a promising antiviral agent against DENV,providing an alternative for antiviral development against flaviviruses. 展开更多
关键词 Dengue virus type 2(DENV 2) Antiviral agent NS2B-NS3 protease ELTROMBOPAG Allosteric inhibitor
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Association between metabolic dysfunction-associated steatotic liver disease,vitamin D3,and diabetic gastric motility disorders in type 2 diabetes mellitus
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作者 Xu Cui Zheng Liang 《World Journal of Hepatology》 2025年第11期283-285,共3页
This letter comments on a study linking metabolic dysfunction-associated steatotic liver disease(MASLD),vitamin D3,and severe gastric autonomic neuropathy(diabetic gastric motility disorders)in type 2 diabetes mellitu... This letter comments on a study linking metabolic dysfunction-associated steatotic liver disease(MASLD),vitamin D3,and severe gastric autonomic neuropathy(diabetic gastric motility disorders)in type 2 diabetes mellitus(T2DM).We question the necessity of excluding patients with severe cataract(unable to complete fundus exams),as the focus on T2DM-MASLD correlation may render other T2DM complications less relevant.We emphasize vitamin D3’s multifaceted relevance:It associates with T2DM(high-dose supplementation reduces onset risk),MASLD(serum levels predict risk),smooth muscle function,immunity,and T2DM-related fractures via advanced glycation end products.We propose correlating MASLD severity with vitamin D3 levels and diabetic gastric motility disorders in validation analyses(e.g.,correlation,area under the curve)to refine factor analysis.Additionally,based on the authors’note of vitamin D3-tryptophan metabolism links,we call for deeper integration of metabolic pathways to clarify vitamin D3’s role in smooth muscle electrophysiology,leveraging the team’s prior research insights. 展开更多
关键词 Diabetic gastric motility disorders Metabolically-dysfunction-associated steatotic liver disease Vitamin D3 type 2 diabetes mellitus Smooth muscle Electrophysiological function
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Imrecoxib alleviates hepatic damage in type 2 diabetic rats by modulating PI3K/ AKT/NF-κB signaling
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作者 Xue-He Sheng Meng-Xue Liu +2 位作者 Lu-Lu Zhou Ting-Ting Luo Qin Yin 《Asian Pacific Journal of Tropical Biomedicine》 2025年第12期524-532,共9页
Objective:To investigate the influence and underlying mechanisms of imrecoxib on liver damage in rats with type 2 diabetes mellitus(T2DM).Methods:A rat model of T2DM was established by a high-fat diet and streptozotoc... Objective:To investigate the influence and underlying mechanisms of imrecoxib on liver damage in rats with type 2 diabetes mellitus(T2DM).Methods:A rat model of T2DM was established by a high-fat diet and streptozotocin administration.Rats were then treated with imrecoxib 10,20,or 40 mg/kg for 5 weeks.Body weight and fasting blood glucose levels were measured.The analysis included serum liver function,blood lipid profiles,and the levels of inflammatory factors in the rats.Liver tissue histology was evaluated using hematoxylin and eosin staining.Western blotting was conducted to measure the liver expression of proteins such as AKT,PI3K,NF-κB,p-AKT,p-PI3K,and p-NF-κB.Results:Rats treated with imrecoxib showed a greater weight gain compared to untreated diabetic rats.Compared to untreated diabetic rats,imrecoxib at all three doses reduced alanine aminotransferase,aspartate aminotransferase,triglycerides,cholesterol,tumor necrosis factor-α,interleukin(IL)-6,and IL-1β,and significantly increased the levels of IL-10 and IL-4.In imrecoxib-treated rats,the expression levels of AKT,PI3K,p-AKT,and p-PI3K were higher in comparison to the diabetes group,whereas the expression of p-NF-κB was lower.Conclusions:Imrecoxib could alleviate hepatic damage in T2DM rats by modulating PI3K/AKT/NF-κB signaling. 展开更多
关键词 type 2 diabetes Liver injury IMRECOXIB Inflammatory response PI3K/AKT/NF-κB signaling pathway
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Lactiplantibacillus plantarum strain 84-3 and Staphylococcus aureus phages alleviate type 2-diabetes-induced S.aureus and BCAAs increases by PI3K/AKT/GLUT4 signaling pathway
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作者 Tingting Liang Qihui Gu +6 位作者 Zhuang Liang Tong Jiang Ya Chen Tong Chen Bo Dong Bing Gu Qingping Wu 《Food Science and Human Wellness》 2025年第10期4246-4261,共16页
Epidemiological studies have indicated that branched-chain amino acids(BCAAs)increased and gut microbiota disordered in type 2 diabetes mellitus(T2DM).This study aimed to investigate the mechanism of Lactiplantibacill... Epidemiological studies have indicated that branched-chain amino acids(BCAAs)increased and gut microbiota disordered in type 2 diabetes mellitus(T2DM).This study aimed to investigate the mechanism of Lactiplantibacillus plantarum strain 84-3(Lp84-3)combined with Staphylococcus aureus bacteriophage on ameliorating T2DM.Here we perform a case-control study and identify that Staphylococcus_phage was inversely correlated with fasting blood glucose(FBG).It revealed that Lp84-3 could inhibit the growth of S.aureus,and Lp84-3 contains BCAAs degradation enzymes in its genome.Furthermore,Lp84-3 alone or combined with S.aureus bacteriophage interventions can improve blood glucose,insulin resistance,triglycerides,interleukin-1β,tumor necrosis factor-α(TNF-α),BCAAs,and acetyllactate synthase(ALS)in db/db mice.Lp84-3 and S.aureus bacteriophage decreased S.aureus,Malacoplasma iowae,and Oscillibacter sp.,and increased some beneficial such as L.plantarum and Muribaculaceae bacterium.Transcriptomic analyses revealed that Lp84-3 and S.aureus bacteriophage activated the PI3K/AKT/GLUT4 signaling pathway and upregulated key genes of Il22,Hgf,Col6a1,Gh,Itga10,Fgf23,and Prl involved in glucose metabolism in hypothalamus.Collectively,Lp84-3 and S.aureus bacteriophage alleviate T2DM by modulating gut microbiota and enhancing glucose metabolism in hypothalamus,supporting its potential use as a promising functional compound microecological agent for alleviating T2DM. 展开更多
关键词 Lactiplantibacillus plantarum Staphylococcus aureus phage Branched-chain amino acids type 2 diabetes mellitus Gut microbiota PI3K/AKT/GLUT4 signaling pathway
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骨密度联合血清25-(OH)D_(3)和ucOC检测辅助诊断T2DN并发肌少症
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作者 阮峥 戈欣 +1 位作者 廖妍媛 张舒雅 《基础医学与临床》 2026年第1期97-102,共6页
目的探究2型糖尿病肾病(T2DN)患者骨密度(BMD)值以及血清25-羟基维生素D_(3)[25-(OH)D_(3)]、羧化不全骨钙素(ucOC)水平与其并发肌少症的临床意义。方法选取2023年8月至2024年8月武汉大学人民医院内分泌科收治的T2DN患者197例为研究对象... 目的探究2型糖尿病肾病(T2DN)患者骨密度(BMD)值以及血清25-羟基维生素D_(3)[25-(OH)D_(3)]、羧化不全骨钙素(ucOC)水平与其并发肌少症的临床意义。方法选取2023年8月至2024年8月武汉大学人民医院内分泌科收治的T2DN患者197例为研究对象,根据肌少症发生情况分为肌少症组(80例)和非肌少症组(117例)。使用双能X线骨密度仪(DXA)检测BMD值;采用ELISA检测血清25-(OH)D_(3)、ucOC水平;BMD值、25-(OH)D_(3)、ucOC与肌少症指标、改进的主观整体评估量表(MQSGA)评分的相关性通过Pearson与Spearman法分析;影响T2DN患者并发肌少症的因素经Logistic回归方程分析;BMD值、25-(OH)D_(3)、ucOC对T2DN患者并发肌少症的辅助诊断价值由受试者工作特征(ROC)曲线分析。结果肌少症组BMD值、血清25-(OH)D_(3)水平低于非肌少症组,血清ucOC水平高于非肌少症组(t/P=9.963/<0.001,8.948/<0.001,9.913/<0.001);肌少症组握力、步速、四肢骨骼肌质量指数(ASMI)低于非肌少症组,坐起时间、MQSGA评分大于非肌少症组(t/P=8.330/<0.001,15.198/<0.001,8.230/<0.001,6.934/<0.001,3.528/0.001);T2DN合并肌少症患者BMD值、血清25-(OH)D_(3)水平与握力、步速、ASMI呈正相关,与坐起时间、MQSGA评分呈负相关[BMD值:r_(s)/P=0.492/<0.001,0.469/<0.001,0.492/<0.001,-0.513/<0.001,-0.523/<0.001;25-(OH)D_(3):r_(s)/P=0.537/<0.001,0.472/<0.001,0.496/<0.001,-0.562/<0.001,-0.523/<0.001]。血清ucOC水平与握力、步速、ASMI呈负相关,与坐起时间、MQSGA评分呈正相关(r_(s)/P=-0.546/<0.001,-0.493/<0.001,-0.487/<0.001,0.541/<0.001,0.544/<0.001);血清ucOC水平升高是T2DN患者并发肌少症的独立危险因素[OR(95%CI)=1.953(1.279~2.982)],BMD值、血清25-(OH)D_(3)水平升高是独立保护因素[OR(95%CI)=0.316(0.135~0.741)0.287(0.133~0.621)];BMD值、血清25-(OH)D_(3)、ucOC水平单独与三者3种生物标志物单独、联合检测的曲线下面积(AUC)参数分别为0.838、0.817、0.863、0.956,三者联合的AUC大于单独辅助诊断(Z/P=4.549/<0.001,5.109/<0.001,4.010/0.001)。结论除BMD值之外血清25-(OH)D_(3)、ucOC水平也是T2DN患者体内的重要生物标志物,三者均可辅助诊断T2DN患者并发肌少症的情况,且联合辅助诊断价值较高。 展开更多
关键词 2型糖尿病肾病 肌少症 骨密度 25-羟基维生素D_(3) 羧化不全骨钙素
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超声联合血清PTPN3、PDK1检测对乳腺癌腋窝淋巴结转移的诊断价值
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作者 汤欢 李林璐 +1 位作者 罗佳 高怡江 《检验医学与临床》 2026年第2期171-176,共6页
目的探讨超声联合血清蛋白酪氨酸去磷酸酶3(PTPN3)、磷酸肌醇依赖性蛋白激酶-1(PDK1)检测对乳腺癌腋窝淋巴结转移的诊断价值。方法选取2022年6月至2024年6月在湖南中医药大学第一附属医院进行乳腺癌手术治疗的136例患者作为研究对象。... 目的探讨超声联合血清蛋白酪氨酸去磷酸酶3(PTPN3)、磷酸肌醇依赖性蛋白激酶-1(PDK1)检测对乳腺癌腋窝淋巴结转移的诊断价值。方法选取2022年6月至2024年6月在湖南中医药大学第一附属医院进行乳腺癌手术治疗的136例患者作为研究对象。依据组织病理学检查结果,将发生乳腺癌腋窝淋巴结转移的患者归为转移组,未发生腋窝淋巴结转移的患者归为未转移组。所有患者均进行超声检查;采用酶联免疫吸附试验(ELISA)检测血清PTPN3、PDK1水平。绘制受试者工作特征(ROC)曲线分析血清PTPN3、PDK1对乳腺癌腋窝淋巴结转移的诊断价值;采用诊断试验四格表分析超声联合血清PTPN3、PDK1检测对乳腺癌腋窝淋巴结转移的诊断价值。结果转移组76例,未转移组60例。与未转移组相比,转移组血清PTPN3、PDK1水平显著升高(P<0.05)。转移组边界不清晰、淋巴结最大直径≥7 mm、纵横径比<2、内部回声不均匀、血流信号丰富占比均明显高于未转移组(P<0.05)。超声联合血清PTPN3、PDK1检测诊断乳腺癌腋窝淋巴结转移的准确度为88.24%,灵敏度为96.05%,特异度为78.33%。3项联合诊断乳腺癌腋窝淋巴结转移的准确度、灵敏度明显高于各项单独检测(P<0.05)。结论乳腺癌腋窝淋巴结转移患者血清PTPN3、PDK1水平显著升高,超声联合血清PTPN3、PDK1检测对乳腺癌腋窝淋巴结转移的诊断效能更高,可为乳腺癌腋窝淋巴结转移的临床诊断提供参考。 展开更多
关键词 蛋白酪氨酸去磷酸酶3 磷酸肌醇依赖性蛋白激酶-1 超声 乳腺癌 腋窝淋巴结转移
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产生抗D的DVI type 3型孕妇免疫血清学和RHD基因型分析 被引量:5
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作者 梁倩妮 廖志坚 +3 位作者 张润青 姬艳丽 罗广平 黎美娜 《中国实验血液学杂志》 CAS CSCD 北大核心 2017年第6期1810-1814,共5页
目的:对部分D表型孕妇进行免疫血清学和RHD基因型分析。方法:采用常规血型血清学方法鉴定孕妇RhD血型,并进行血型特异性抗体筛查和鉴定;采用序列特异性引物聚合酶链反应(polymerase chain reactionsequence specific primer,PCR-SSP)鉴... 目的:对部分D表型孕妇进行免疫血清学和RHD基因型分析。方法:采用常规血型血清学方法鉴定孕妇RhD血型,并进行血型特异性抗体筛查和鉴定;采用序列特异性引物聚合酶链反应(polymerase chain reactionsequence specific primer,PCR-SSP)鉴定孕妇RHD基因型;采用多重连接依赖的探针扩增技术(multiplex ligationdependent probe amplification,MLPA)对孕妇及其配偶和女儿的RhD血型抗原进行基因分型及遗传分析。结果:该孕妇血清中检测出IgG抗-D,其抗体效价为1∶8。PCR-SSP结果显示,该孕妇RHD基因第3-6外显子缺失,经鉴定该孕妇RHD基因型为DVI type 3型。MLPA分析显示,该孕妇只有1条RHD等位基因,且缺失3-6外显子,其基因型为CDVIe/cde,其配偶为CDe/CDe纯合子基因型,女儿为CDe/CDVIe基因型。结论:准确的RhD血型鉴定对制定安全有效的临床输血策略和对育龄妇女采取恰当措施及预防新生儿溶血病具有重要意义。 展开更多
关键词 DVI type 3 RHD血型 红细胞血型抗原
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电压模式Buck变换器type 3A型补偿器的研究 被引量:5
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作者 李艳丽 冯全源 《微电子学与计算机》 CSCD 北大核心 2014年第12期136-139,共4页
针对电压模式Buck型开关电源type 3A型补偿器进行研究.对type 3A型补偿网络的穿越频率进行详细的推导,并得出该穿越频率与负载电流无关.在输入电压和输出电压发生较大变化时,只需调节补偿网络外部电容Cff,就能得到良好的相位裕度和环路... 针对电压模式Buck型开关电源type 3A型补偿器进行研究.对type 3A型补偿网络的穿越频率进行详细的推导,并得出该穿越频率与负载电流无关.在输入电压和输出电压发生较大变化时,只需调节补偿网络外部电容Cff,就能得到良好的相位裕度和环路稳定性.采用Matlab和Hspice对环路进行仿真,仿真结果验证了对type 3A型补偿器理论研究的合理性. 展开更多
关键词 电压模式 type 3A型补偿器 相位裕度 环路稳定 外部电容
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RHD cat Ⅵ type3血型标本的基因分析——附1例报道 被引量:1
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作者 张冬民 刘衍春 +1 位作者 马玲 袁克宇 《中国输血杂志》 CAS CSCD 北大核心 2012年第S1期110-110,共1页
目的通过对1例弱D的标本进行RHD基因外显子检测,分析其产生抗-D的分子基础。方法RhD血型采用盐水试管法、抗-D效价及弱D确认的检测均采用卡式抗球法;RHD基因外显子D1~D10、270A、1227A的检测采用PCR-SSP法。结果该标本IgM抗-D检测为阴... 目的通过对1例弱D的标本进行RHD基因外显子检测,分析其产生抗-D的分子基础。方法RhD血型采用盐水试管法、抗-D效价及弱D确认的检测均采用卡式抗球法;RHD基因外显子D1~D10、270A、1227A的检测采用PCR-SSP法。结果该标本IgM抗-D检测为阴性;抗-D效价1∶128;IgG、IgG+IgM抗-D检测结果为弱D;RHD基因检测结果为D3、4、5、6外显子缺失,确认该标本为部分D即RHDcatⅥtype3,基因结构为RHD-CE(3-6)-D。结论Rh部分D血型可以产生抗-D。 展开更多
关键词 RHD CAT type3 基因分析 试管法 IGG 基因外显子
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面向I^(3)型卓越人才培养的嵌入式人工智能实验教学探索 被引量:8
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作者 陆玲霞 于淼 彭勇刚 《实验室研究与探索》 北大核心 2025年第1期85-90,共6页
为满足“人工智能(AI)+X”背景下对交叉型、复合型、创新型(I3型)卓越人才培养的迫切需求,针对现有嵌入式人工智能(AI)实验教学中存在实验平台资源有限、教学体系不够完善以及产教融合深度不足等问题,深入探索嵌入式AI实验教学新模式。... 为满足“人工智能(AI)+X”背景下对交叉型、复合型、创新型(I3型)卓越人才培养的迫切需求,针对现有嵌入式人工智能(AI)实验教学中存在实验平台资源有限、教学体系不够完善以及产教融合深度不足等问题,深入探索嵌入式AI实验教学新模式。建设灵活性强、接口资源丰富的嵌入式AI创新实验平台,构建交叉性强、多层递阶的实验教学体系,充分融入产教融合、科教融汇的实践创新案例。实践表明,所采取的改革举措有利于激发学生的创新潜能,提升学生创新思维与实践能力,为培养I^(3)型卓越人才提供有力支撑,也展现了良好的示范效应。 展开更多
关键词 嵌入式人工智能 实验教学改革 I^(3)型卓越人才 产教融合
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DHAV-3弱毒活疫苗株(HB80株)与野毒株鉴别检测的RT-PCR-RFLP方法的建立
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作者 傅秋玲 万春和 +13 位作者 焦文龙 韩相敏 程龙飞 陈珍 赖志 陈红梅 梁齐章 江南松 刘荣昌 施少华 陈翠腾 苏敬良 黄瑜 傅光华 《中国预防兽医学报》 北大核心 2025年第7期691-696,共6页
为建立一种能快速、简便、准确鉴别检测我国鸭3型甲肝病毒(DHAV-3)野毒株与弱毒活疫苗HB80株的方法,本研究根据DHAV-3野毒株及HB80株的2A基因序列差异片段设计并合成一对特异性引物,经反应条件的优化,初步建立了鉴别检测我国DHAV-3野毒... 为建立一种能快速、简便、准确鉴别检测我国鸭3型甲肝病毒(DHAV-3)野毒株与弱毒活疫苗HB80株的方法,本研究根据DHAV-3野毒株及HB80株的2A基因序列差异片段设计并合成一对特异性引物,经反应条件的优化,初步建立了鉴别检测我国DHAV-3野毒株与HB80株的反转录聚合酶链式反应-限制性片段长度多态性(RTPCR-RFLP)方法。利用该方法检测DHAV-3野毒株和疫苗株,以及DHAV-1、鸭3型星状病毒、H9亚型禽流感病毒、禽坦布苏病毒、鸭瘟病毒、鸭3型腺病毒、鸭呼肠孤病毒和番鸭细小病毒,结果显示该方法仅能特异性扩增DHAV-3(包括野毒株和疫苗株)的682 bp片段,且仅DHAV-3野毒株的RT-PCR产物(682 bp片段)能够被Apa I酶切为444 bp和238 bp两个片段。将DHAV-3的RNA 10倍倍比稀释(1.7×10^(6)拷贝/μL~1.7×10^(1)拷贝/μL)后作为模板,利用该方法检测,结果显示该方法能够检出DHAV-3 RNA的最低浓度为170拷贝/μL。重复性结果显示,该方法对3个不同浓度DHAV-3野毒株和HB80株RNA的检测结果均一致。利用该方法和常规RT-PCR方法同时对疑似临床鸭肝炎组织、实验感染DHAV-3野毒株(HB株)和免疫DHAV-3活疫苗株鸭组织等10^(1)份样品检测,结果显示两者检测结果的符合率为100%。本研究首次建立了能特异性鉴别检测DHAV-3野毒株与我国弱毒活疫苗株的RT-PCR-RFLP方法,为我国鸭DHAV-3感染的防控提供了技术支撑。 展开更多
关键词 3型甲肝病毒 野毒株 弱毒疫苗株 聚合酶链式反应-限制性片段长度多态性方法 鉴别
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中药调控PI3K/Akt信号通路干预多囊卵巢综合征大鼠实验研究的现状、问题及对策 被引量:2
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作者 闫朋宣 刘奕清 +4 位作者 咸楠星 彭麟景 李鲲 张京春 赵雨坤 《中国实验方剂学杂志》 北大核心 2025年第1期259-266,共8页
多囊卵巢综合征(PCOS)及其导致的不孕症是妇科和生殖内分泌科常见的疾病之一。磷脂酰肌醇3-激酶/蛋白激酶B(PI3K/Akt)信号通路是干预PCOS发展研究相对较多的信号通路,中药通过此信号通路开展的PCOS大鼠实验也是机制研究的主要方向。笔... 多囊卵巢综合征(PCOS)及其导致的不孕症是妇科和生殖内分泌科常见的疾病之一。磷脂酰肌醇3-激酶/蛋白激酶B(PI3K/Akt)信号通路是干预PCOS发展研究相对较多的信号通路,中药通过此信号通路开展的PCOS大鼠实验也是机制研究的主要方向。笔者通过相应标准梳理并筛选出了近5年在学术期刊公开发表的文章20篇,从基线资料、造模与治疗、分组情况、评价性指标、药效学指标5个方面对入选的研究客观情况、存在问题进行分析,结果发现各个研究项目均存在不同程度的问题,如造模观察指标、模型成功判断标准、治疗周期、方药/有效成分剂量计算方式和具体用量等未明确,易造成结果偏倚或降低实验数据有效度。基于此,形成了PCOS大鼠实验研究操作清单,涉及实验大鼠、模型构建、研究实施、结局指标和分析与报告五大类共21条操作清单,以期为后续PCOS实验有关科研提供参考,助力形成高质量成果。 展开更多
关键词 中医药(TCM) 多囊卵巢综合征(PCOS) 磷脂酰肌醇3-激酶/蛋白激酶B(PI3K/Akt)信号通路 现状及问题 动物模型 肾虚型 蛋白
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基于Gal-3和sST2水平的气虚血瘀型心力衰竭患者改良心脏康复与血府逐瘀汤治疗效果研究 被引量:2
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作者 吴费凯 肖美霞 +2 位作者 施胜铭 刘海兵 张莎莎 《中国现代医生》 2025年第6期19-23,共5页
目的 评估改良心脏康复结合血府逐瘀汤对气虚血瘀型心力衰竭患者的疗效,分析半乳糖凝集素-3(galectin-3,Gal-3)、可溶性致癌抑制因子2(soluble suppression of tumorigenicity 2,sST2)水平、心脏功能、中医证候及运动耐量的改善效果。方... 目的 评估改良心脏康复结合血府逐瘀汤对气虚血瘀型心力衰竭患者的疗效,分析半乳糖凝集素-3(galectin-3,Gal-3)、可溶性致癌抑制因子2(soluble suppression of tumorigenicity 2,sST2)水平、心脏功能、中医证候及运动耐量的改善效果。方法 选取2021年10月至2023年3月于湖州市第一人民医院康复医学科就诊的180例气虚血瘀型心力衰竭患者,随机分为治疗组(改良心脏康复+血府逐瘀汤)和对照组(常规治疗),疗程为12周。比较两组患者治疗前和治疗12周后的Gal-3、sST2、左心室射血分数(left ventricular ejection fraction,LVEF)、纽约心功能分级(New York heart association functional classification,NYHA)、N末端脑利尿钠肽前体(N-terminal B-type natriuretic peptide,NT-proBNP)、中医证候积分及6min步行试验(6-minute walk test,6MWT)的变化,并评估其安全性。结果 治疗12周后,治疗组患者的Gal-3和sST2水平均显著低于对照组;LVEF水平显著高于对照组,NYHA改善程度显著优于对照组;NT-proBNP显著低于对照组;6MWT显著高于对照组;中医证候积分低于对照组;比较差异有统计学意义(P<0.05)。治疗12周后,治疗组的有效率显著高于对照组(P<0.05);两组患者的不良反应及严重不良事件比较差异无统计学意义(P>0.05)。结论改良心脏康复联合血府逐瘀汤可显著改善气虚血瘀型心力衰竭患者的心脏功能、中医证候及运动耐量,降低Gal-3和sST2水平,具有较高的临床应用价值。 展开更多
关键词 心力衰竭 气虚血瘀型 半乳糖凝集素-3 可溶性致癌抑制因子2 左心室射血分数 6分钟步行试验
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