BACKGROUND Secondary hyperparathyroidism(SHPT)is a common complication in patients with end-stage renal disease and it is also common in hemodialysis patients.SHPT can increase bone fragility and calcification of bloo...BACKGROUND Secondary hyperparathyroidism(SHPT)is a common complication in patients with end-stage renal disease and it is also common in hemodialysis patients.SHPT can increase bone fragility and calcification of blood vessels and soft tissues,which greatly increases the risk of death.AIM To discuss the outcome,safety and other potential benefits of paricalcitol injection in hemodialysis patients with SHPT.METHODS We recruited 40 patients who received hemodialysis at our hospital for chronic renal failure with SHPT between March and December 2019.They received paricalcitol injection for 24 wk(starting dose,0.06–0.08μg/kg),three times per week.They were followed up at the baseline(week 0),week 4,week 12 and week 24.The primary outcome indicator was the percentage of patients with a>30%decrease in intact parathyroid hormone(iPTH)levels at week 24 compared with the baseline.The secondary outcome indicators included percentage decrease in iPTH levels at week 24,standard-reaching rate of iPTH(percentage of patients with iPTH down to 130–585 pg/mL),changes in serum levels of calcium(Ca),phosphate(P),Ca×P product,alkaline phosphatase(ALP),creatinine(Cre),hemoglobin(Hb),and C-reactive protein(CRP),and incidence of adverse events(AEs).RESULTS After 24 wk of treatment,iPTH levels decreased significantly(598.88±381.29 pg/mL vs 888.84±376.88 pg/mL,P<0.05).More than 30%decrease of iPTH was found in 21 of 36(58.33%)patients.The average decrease in iPTH levels was 32.16±4.33%;the standard-reaching rate of iPTH levels was 66.67%(24/36);and ALP levels decreased significantly compared with the baseline(113.72±41.73 IU/L vs 133.45±56.86 IU/L)(t=2.798,P<0.05).There were no significant differences in the serum levels of calcium,Hb,Cre and CRP compared with the baseline(P>0.05).After 24 wk of treatment,serum P levels decreased compared with the baseline(1.91±0.40 mmol/L vs 2.16±0.66 mmol/L)(t=2.830,P<0.05).Ca×P product decreased significantly compared with the baseline(56.38±13.22 mg2/dL2 vs 63.97±20.30 mg2/dL2)(t=2.717,P<0.05).No serious adverse events occurred.CONCLUSION Paricalcitol was a safe and effective treatment for hemodialysis patients with SHPT.It decreased serum levels of iPTH,ALP and P and maintained stability of serum Ca levels.展开更多
Emerging evidence indicates that sleep deprivation(SD)can lead to Alzheimer’s disease(AD)-related pathological changes and cognitive decline.However,the underlying mechanisms remain obscure.In the present study,we id...Emerging evidence indicates that sleep deprivation(SD)can lead to Alzheimer’s disease(AD)-related pathological changes and cognitive decline.However,the underlying mechanisms remain obscure.In the present study,we identified the existence of a microbiota-gut-brain axis in cognitive deficits resulting from chronic SD and revealed a potential pathway by which gut microbiota affects cognitive functioning in chronic SD.Our findings demonstrated that chronic SD in mice not only led to cognitive decline but also induced gut microbiota dysbiosis,elevated NLRP3 inflammasome expression,GSK-3βactivation,autophagy dysfunction,and tau hyperphosphorylation in the hippocampus.Colonization with the“SD microbiota”replicated the pathological and behavioral abnormalities observed in chronic sleep-deprived mice.Remarkably,both the deletion of NLRP3 in NLRP3-/-mice and specific knockdown of NLRP3 in the hippocampus restored autophagic flux,suppressed tau hyperphosphorylation,and ameliorated cognitive deficits induced by chronic SD,while GSK-3βactivity was not regulated by the NLRP3 inflammasome in chronic SD.Notably,deletion of NLRP3 reversed NLRP3 inflammasome activation,autophagy deficits,and tau hyperphosphorylation induced by GSK-3βactivation in primary hippocampal neurons,suggesting that GSK-3β,as a regulator of NLRP3-mediated autophagy dysfunction,plays a significant role in promoting tau hyperphosphorylation.Thus,gut microbiota dysbiosis was identified as a contributor to chronic SD-induced tau pathology via NLRP3-mediated autophagy dysfunction,ultimately leading to cognitive deficits.Overall,these findings highlight GSK-3βas a regulator of NLRP3-mediated autophagy dysfunction,playing a critical role in promoting tau hyperphosphorylation.展开更多
目的研究腹腔镜全子宫切除术(laparoscopic total hysterectomy,LTH)结合圆韧带悬吊术对子宫肌瘤患者术后并发盆底功能障碍性疾病(pelvic floor dysfunction,PFD)的预防效果。方法选取医院收治的112例子宫肌瘤患者,根据随机数字表法分...目的研究腹腔镜全子宫切除术(laparoscopic total hysterectomy,LTH)结合圆韧带悬吊术对子宫肌瘤患者术后并发盆底功能障碍性疾病(pelvic floor dysfunction,PFD)的预防效果。方法选取医院收治的112例子宫肌瘤患者,根据随机数字表法分为观察组(56例)、对照组(56例)。两组患者均接受LTH治疗,其中观察组联合圆韧带悬吊术。比较两组患者治疗后PFD的情况。根据是否发生PFD分为发生组、未发生组,比较两组患者临床病历资料,并采用Logistic模型分析术后并发PFD的危险因素。结果术后随访6个月,共有38例患者发生PFD,其中观察组尿频尿急、压力性尿失禁发生率明显低于对照组(P<0.05)。观察组患者住院时间、排气时间、PFIQ-7评分明显低于对照组(P<0.05)。Logistic回归分析结果显示,糖尿病(OR=2.208,95%CI:1.457~3.345)、孕产次(OR=1.592,95%CI:1.059~2.393)、子宫肌瘤直径(OR=2.545,95%CI:1.076~6.016)以及年龄(OR=2.358,95%CI:1.275~4.364)是术后发生PFD的危险因素(P<0.05)。结论糖尿病、孕产次、子宫肌瘤直径以及年龄型是子宫肌瘤患者LTH术后发生PFD的危险因素,LTH术结合圆韧带悬吊术可降低术后PFD发生风险。展开更多
Heavy oil is treated as an undesirable raw material in traditional refining markets because of its low yield.However,its rich natural aromatic structure and heteroatomic compounds make it possible to be a precursor to...Heavy oil is treated as an undesirable raw material in traditional refining markets because of its low yield.However,its rich natural aromatic structure and heteroatomic compounds make it possible to be a precursor to large-scale production of carbon materials.Using heavy oil and three SDA products as precursors,we synthesized highly fluorescent multi-color carbon dots(CDs)by hydrothermal method,which can precisely control the photoluminescence wavelength in the range of 350-650 nm.The synthesized carbon dots have the advantages of good long-term stability and stability under extreme pH conditions and low price.Importantly,the carbon dots synthesized with asphalt as the precursor have the highest fluorescence quantum yield.X-ray photoelectron spectroscopy(XPS)is used to elucidate the effects of different precursor on emission color change and photoluminescence quantum yield(PLQY),thus providing a controlled tuning of the system for the functionalization of CDs.And we further used the CDs in macrophage labeling.This pathway gives a reliable and repeatable industry possibility and may boost the applications of CDs into reality.展开更多
基金Supported by 2019 Anhui University Natural Science Research Project,No.KJ2019A0094,No.KJ2019A0095Huainan City"50 Science and Technology Stars"Innovation Team Projectand Scientific Research Platform of Huainan Science and Technology Bureau,No.2017G32.
文摘BACKGROUND Secondary hyperparathyroidism(SHPT)is a common complication in patients with end-stage renal disease and it is also common in hemodialysis patients.SHPT can increase bone fragility and calcification of blood vessels and soft tissues,which greatly increases the risk of death.AIM To discuss the outcome,safety and other potential benefits of paricalcitol injection in hemodialysis patients with SHPT.METHODS We recruited 40 patients who received hemodialysis at our hospital for chronic renal failure with SHPT between March and December 2019.They received paricalcitol injection for 24 wk(starting dose,0.06–0.08μg/kg),three times per week.They were followed up at the baseline(week 0),week 4,week 12 and week 24.The primary outcome indicator was the percentage of patients with a>30%decrease in intact parathyroid hormone(iPTH)levels at week 24 compared with the baseline.The secondary outcome indicators included percentage decrease in iPTH levels at week 24,standard-reaching rate of iPTH(percentage of patients with iPTH down to 130–585 pg/mL),changes in serum levels of calcium(Ca),phosphate(P),Ca×P product,alkaline phosphatase(ALP),creatinine(Cre),hemoglobin(Hb),and C-reactive protein(CRP),and incidence of adverse events(AEs).RESULTS After 24 wk of treatment,iPTH levels decreased significantly(598.88±381.29 pg/mL vs 888.84±376.88 pg/mL,P<0.05).More than 30%decrease of iPTH was found in 21 of 36(58.33%)patients.The average decrease in iPTH levels was 32.16±4.33%;the standard-reaching rate of iPTH levels was 66.67%(24/36);and ALP levels decreased significantly compared with the baseline(113.72±41.73 IU/L vs 133.45±56.86 IU/L)(t=2.798,P<0.05).There were no significant differences in the serum levels of calcium,Hb,Cre and CRP compared with the baseline(P>0.05).After 24 wk of treatment,serum P levels decreased compared with the baseline(1.91±0.40 mmol/L vs 2.16±0.66 mmol/L)(t=2.830,P<0.05).Ca×P product decreased significantly compared with the baseline(56.38±13.22 mg2/dL2 vs 63.97±20.30 mg2/dL2)(t=2.717,P<0.05).No serious adverse events occurred.CONCLUSION Paricalcitol was a safe and effective treatment for hemodialysis patients with SHPT.It decreased serum levels of iPTH,ALP and P and maintained stability of serum Ca levels.
基金National Natural Science Foundation of China(81870850)Postgraduate Research&Practice Innovation Program of Jiangsu Province(KYCX23_0322)。
文摘Emerging evidence indicates that sleep deprivation(SD)can lead to Alzheimer’s disease(AD)-related pathological changes and cognitive decline.However,the underlying mechanisms remain obscure.In the present study,we identified the existence of a microbiota-gut-brain axis in cognitive deficits resulting from chronic SD and revealed a potential pathway by which gut microbiota affects cognitive functioning in chronic SD.Our findings demonstrated that chronic SD in mice not only led to cognitive decline but also induced gut microbiota dysbiosis,elevated NLRP3 inflammasome expression,GSK-3βactivation,autophagy dysfunction,and tau hyperphosphorylation in the hippocampus.Colonization with the“SD microbiota”replicated the pathological and behavioral abnormalities observed in chronic sleep-deprived mice.Remarkably,both the deletion of NLRP3 in NLRP3-/-mice and specific knockdown of NLRP3 in the hippocampus restored autophagic flux,suppressed tau hyperphosphorylation,and ameliorated cognitive deficits induced by chronic SD,while GSK-3βactivity was not regulated by the NLRP3 inflammasome in chronic SD.Notably,deletion of NLRP3 reversed NLRP3 inflammasome activation,autophagy deficits,and tau hyperphosphorylation induced by GSK-3βactivation in primary hippocampal neurons,suggesting that GSK-3β,as a regulator of NLRP3-mediated autophagy dysfunction,plays a significant role in promoting tau hyperphosphorylation.Thus,gut microbiota dysbiosis was identified as a contributor to chronic SD-induced tau pathology via NLRP3-mediated autophagy dysfunction,ultimately leading to cognitive deficits.Overall,these findings highlight GSK-3βas a regulator of NLRP3-mediated autophagy dysfunction,playing a critical role in promoting tau hyperphosphorylation.
文摘目的研究腹腔镜全子宫切除术(laparoscopic total hysterectomy,LTH)结合圆韧带悬吊术对子宫肌瘤患者术后并发盆底功能障碍性疾病(pelvic floor dysfunction,PFD)的预防效果。方法选取医院收治的112例子宫肌瘤患者,根据随机数字表法分为观察组(56例)、对照组(56例)。两组患者均接受LTH治疗,其中观察组联合圆韧带悬吊术。比较两组患者治疗后PFD的情况。根据是否发生PFD分为发生组、未发生组,比较两组患者临床病历资料,并采用Logistic模型分析术后并发PFD的危险因素。结果术后随访6个月,共有38例患者发生PFD,其中观察组尿频尿急、压力性尿失禁发生率明显低于对照组(P<0.05)。观察组患者住院时间、排气时间、PFIQ-7评分明显低于对照组(P<0.05)。Logistic回归分析结果显示,糖尿病(OR=2.208,95%CI:1.457~3.345)、孕产次(OR=1.592,95%CI:1.059~2.393)、子宫肌瘤直径(OR=2.545,95%CI:1.076~6.016)以及年龄(OR=2.358,95%CI:1.275~4.364)是术后发生PFD的危险因素(P<0.05)。结论糖尿病、孕产次、子宫肌瘤直径以及年龄型是子宫肌瘤患者LTH术后发生PFD的危险因素,LTH术结合圆韧带悬吊术可降低术后PFD发生风险。
基金Beijing Nova Program Interdisciplinary Studies Cooperative Project(No.Z181100006218138)Science Foundation of China University of Petroleum(Nos.2462020YXZZ018,2462019QNXZ02,2462018BJC004)for the support。
文摘Heavy oil is treated as an undesirable raw material in traditional refining markets because of its low yield.However,its rich natural aromatic structure and heteroatomic compounds make it possible to be a precursor to large-scale production of carbon materials.Using heavy oil and three SDA products as precursors,we synthesized highly fluorescent multi-color carbon dots(CDs)by hydrothermal method,which can precisely control the photoluminescence wavelength in the range of 350-650 nm.The synthesized carbon dots have the advantages of good long-term stability and stability under extreme pH conditions and low price.Importantly,the carbon dots synthesized with asphalt as the precursor have the highest fluorescence quantum yield.X-ray photoelectron spectroscopy(XPS)is used to elucidate the effects of different precursor on emission color change and photoluminescence quantum yield(PLQY),thus providing a controlled tuning of the system for the functionalization of CDs.And we further used the CDs in macrophage labeling.This pathway gives a reliable and repeatable industry possibility and may boost the applications of CDs into reality.
