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Aberrant adult neurogenesis in intractable epilepsy:can GABAergic progenitor transplantation normalize this process?
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作者 Muhammad N.Arshad Janice R.Naegele 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第7期1419-1420,共2页
Temporal lobe epilepsy(TLE) is a common type of focal epilepsy characterized by seizure foci within the temporal lobes.While surgical resection of the foci is an established and effective approach for controlling seiz... Temporal lobe epilepsy(TLE) is a common type of focal epilepsy characterized by seizure foci within the temporal lobes.While surgical resection of the foci is an established and effective approach for controlling seizures,both temporal lobes cannot be removed,due to their prominent roles in learning and memory.Additionally,seizures induce changes to the temporal lobes that contribute to hyperexcitability,including mossy fiber sprouting,astrogliosis. 展开更多
关键词 EPILEPSY PROGENITOR seizures
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Enhancing diabetic retinopathy screening:Non-mydriatic fundus photography-assisted telemedicine for improved clinical management
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作者 Kira J Szulborski David J Ramsey 《World Journal of Diabetes》 SCIE 2024年第8期1820-1823,共4页
The utilization of non-mydriatic fundus photography-assisted telemedicine to screen patients with diabetes mellitus for diabetic retinopathy provides an accurate,efficient,and cost-effective method to improve early de... The utilization of non-mydriatic fundus photography-assisted telemedicine to screen patients with diabetes mellitus for diabetic retinopathy provides an accurate,efficient,and cost-effective method to improve early detection of disease.It has also been shown to correlate with increased participation of patients in other aspects of diabetes care.In particular,patients who undergo teleretinal imaging are more likely to meet Comprehensive Diabetes Care Healthcare Effectiveness Data and Information Set metrics,which are linked to preservation of quality-adjusted life years and additional downstream healthcare savings. 展开更多
关键词 DIABETES Diabetic retinopathy TELEMEDICINE Tele-ophthalmology Nonmydriatic fundus photography-assisted telemedicine Vision screening Preventative health services Health policy
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Efficacy and safety of Jiawei Simiao powder combined with celecoxib for acute gouty arthritis:A meta-analysis
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作者 Weiyu Jia Maoying Wei +6 位作者 Wenhua Zhang Dan Yin Yijia Jiang Churan Wang Xiangdong Wang Yutong Fei Yanbing Gong 《Journal of Traditional Chinese Medical Sciences》 CAS 2024年第3期283-292,共10页
Objective:To evaluate the efficacy and safety of Jiawei Simiao powder(JWSMP)combined with celecoxib for the treatment of acute gouty arthritis by conducting a meta-analysis of randomized controlled trials(RCTs).Method... Objective:To evaluate the efficacy and safety of Jiawei Simiao powder(JWSMP)combined with celecoxib for the treatment of acute gouty arthritis by conducting a meta-analysis of randomized controlled trials(RCTs).Methods: The Chinese National Knowledge Infrastructure Databases,Chinese Scientific Journal Database,Wanfang,Cochrane Library,EMBASE,PubMed,and Web of Science databases were searched from inception until December 2023.Continuous variables were analyzed using the mean difference(MD)for analysis,and dichotomous variables were used as risk ratios.Data with similar characteristics were pooled for meta-analysis,and heterogeneity was assessed using I2.The Cochrane Handbook was used to assess the risk of bias and quality.RevMan 5.3 software was used to perform the meta-analysis.Results: Thirteen RCTs involving 1007 patients were included in the study.The quality of the included studies was low(unclear randomization processes and insufficient blinding reporting).The group receiving JWSMP combined with celecoxib showed significantly lower levels of serum uric acid(SUA,MD=−66.32,95%confidence interval(CI):−80.97 to−51.67,P<.001),erythrocyte sedimentation rate(ESR,MD=−6.05,95%CI:−8.29 to−3.82,P<.001),C-reactive protein(CRP,MD=−7.39,95%CI:−11.15,−3.63,P<.001),and joint pain score(VAS score,MD=−2.14,95%CI:−2.4 to−1.88,P<.001)compared to celecoxib alone.Additionally,the JWSMP combined group had a higher total effective rate(risk ratio=1.22,95%CI:1.14 to 1.29,P<.001)and fewer adverse compared to celecoxib alone.Conclusions: JWSMP combined with celecoxib is more effective than celecoxib alone in improving the total efficacy rate,alleviating joint pain,and improving SUA,ESR,and CRP levels.JWSMP also reduced the occurrence of adverse events caused by celecoxib.However,the quality of the included studies was low,highlighting the need for further high-quality research with larger sample sizes and robust methodologies,such as double-blind randomization,to confirm these findings. 展开更多
关键词 Jiawei Simiao powder CELECOXIB Acute gouty arthritis META-ANALYSIS
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偏振导航云计算支持系统与时空分布规律模型研究
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作者 张羽 汲万峰 +2 位作者 隋江波 杭伟 陈瑞 《全球定位系统》 CSCD 2023年第6期72-80,共9页
采用云计算技术解决天空偏振模式图受环境影响导致的信息源误差以及载体自身测量产生的误差以提高仿生偏振导航的精度及实用性.基于仿生偏振导航单体测角误差,给出多导航单元误差分析的云计算支持系统;依据多导航单元云计算结构提供的信... 采用云计算技术解决天空偏振模式图受环境影响导致的信息源误差以及载体自身测量产生的误差以提高仿生偏振导航的精度及实用性.基于仿生偏振导航单体测角误差,给出多导航单元误差分析的云计算支持系统;依据多导航单元云计算结构提供的信息,确定偏振模式图在不同信息源误差条件下的时空分辨率模型;利用云计算技术对确定时空区域内满足信号源误差范围的多单体测量误差进行分析研究,可以有效辅助偏振导航多单元系统进行高速运算,提高仿生偏振导航的精度及实用性. 展开更多
关键词 偏振导航 云计算 时空分布规律
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食物频率问卷法评估人群能量和营养素摄入量的准确性验证 被引量:19
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作者 李艳平 宋军 +3 位作者 潘慧 姚漫江 胡小琪 马冠生 《营养学报》 CAS CSCD 北大核心 2006年第2期143-147,共5页
目的:食物频率问卷法(FFQ)问卷评估人群膳食能量和营养素摄入量的准确性进行验证。方法:使用3d称重法(WFR)和FFQ收集北京市130名35~49岁健康成人食物摄入资料,计算出其能量和营养素的摄入量并加以比较。结果:由食物WFR计算到... 目的:食物频率问卷法(FFQ)问卷评估人群膳食能量和营养素摄入量的准确性进行验证。方法:使用3d称重法(WFR)和FFQ收集北京市130名35~49岁健康成人食物摄入资料,计算出其能量和营养素的摄入量并加以比较。结果:由食物WFR计算到的研究对象能量摄入为9.6MJ/d,蛋白质、脂肪和碳水化物摄入分别为82.1、87.5和269.7g/d。由FFQ得到的能量摄入量为9.7MJ/d,蛋白质、脂肪和碳水化物摄入量分别为88.3g/d、113.9g/d和248.8g/d,两种方法调查的膳食能量、蛋白质及其供能比无显著性差异,FFQ显著高估膳食脂肪摄入量(高估27.2%),碳水化物摄入量则被低估(低估10.8%)。FFQ得到的膳食维生素和矿物质的摄入量普遍高于WFR,但低估维生素E、铁和硒的摄入量。由FFQ得到的能量和营养素摄入,除维生素C、胡萝卜素和视黄醇当量外,均与WFR显著正相关,相关系数在0.22~0.51之间,但在调整年龄、性别和膳食能量摄入量的影响后,FFQ对膳食脂肪、维生素B1、钠和磷摄入量的估计与WFR相关的显著性消失。结论:FFQ可以用于评估膳食能量、蛋白质、碳水化物、维生素A、维生素B2、尼克酸、钾、钙、锌和硒的摄入量,但FFQ不适于评估膳食脂肪、视黄醇当量、胡萝卜索、维生素B1、维生素C、维生素E、钠、铁和磷的摄入量。 展开更多
关键词 FFQ 食物WFR 能量 营养素 食物频率问卷法
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维生素逆转胃癌的癌前病变——初期临床干预试验 被引量:11
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作者 朱舜时 胡运彪 +9 位作者 施尧 李蓉蓉 房静远 顾伟齐 江绍基 周怡和 夏德凰 金冠球 Joel Mason 萧树东 《胃肠病学》 1996年第2期70-74,共5页
为探索逆转胃癌的癌前病变以预防其发病,本文观察叶酸加维生素B_(12)、合成β-胡萝卜素及天然β-胡萝卜素对56例中重度萎缩性胃炎牯膜病理和DNA甲基化水平的作用。结果:①叶酸加维生素B_(12)对胃牯膜萎缩和肠化的逆转率达77.7%,高于文... 为探索逆转胃癌的癌前病变以预防其发病,本文观察叶酸加维生素B_(12)、合成β-胡萝卜素及天然β-胡萝卜素对56例中重度萎缩性胃炎牯膜病理和DNA甲基化水平的作用。结果:①叶酸加维生素B_(12)对胃牯膜萎缩和肠化的逆转率达77.7%,高于文献统计:②天然β-胡萝卜素显著逆转不典型增生(P=0.04),推测与其所含异构体有关;③血浆叶酸、隐黄素、α-胡萝卜素水平与胃癌癌前病变呈显著负相关:④α-胡萝卜素可使胃粘膜DNA甲基化水平显著提高(P<0.01~0.0001)。本文提示某些维生素可能通过提高胃粘膜细胞DNA甲基化水平,调节某些基因的活性,因而具有逆转胃癌癌前病变的作用。 展开更多
关键词 萎缩性胃炎 癌前病变 逆转 叶酸 Β-胡萝卜素
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菠菜中β-胡萝卜素在人体内转化为维生素A的效率 被引量:3
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作者 王杰 汪之顼 +4 位作者 王茵 傅颖 来伟旗 汤光文 荫士安 《卫生研究》 CAS CSCD 北大核心 2007年第4期449-453,共5页
目的测定菠菜中β-胡萝卜素(β-C)在人体内转化为维生素A的效率。方法将菠菜培植在25%重水(2^H2O)营养液,氘随机标记在类胡萝卜素分子上,其中全反式β-C同位素丰度分布的最高值出现在分子量547(2H10全反式β-C)。给予10名健康成年... 目的测定菠菜中β-胡萝卜素(β-C)在人体内转化为维生素A的效率。方法将菠菜培植在25%重水(2^H2O)营养液,氘随机标记在类胡萝卜素分子上,其中全反式β-C同位素丰度分布的最高值出现在分子量547(2H10全反式β-C)。给予10名健康成年(43-56岁)男性5.8μmol(2.0mg)溶于油的13^C10视黄醇醋酸酯,作为参考VA。7天后,每位受试者摄入100g蒸熟的菠菜(含有7.0μmol或3.8mgβ-C)。56天试验期内,从每位受试者采集血样40次,用HPLC,GC-ECNCI-MS和LC-APCI-MS分析视黄醇和β-C浓度及标记的视黄醇和β-C丰度。试验期间受试者维持低VA和类胡萝卜素膳食。结果标记视黄醇血清反应曲线显示,每1nmol菠菜β-C产生了(0.25±0.10)nmol视黄醇,以13^C10视黄醇醋酸酯为参照,菠菜β-C转化为VA的效率是质量比(9.0±4.5)∶1。结论菠菜β-C可以在体内有效的转化为视黄醇,食用菠菜也提高了血清叶黄素的水平。 展开更多
关键词 菠菜 稳定同位素 Β-胡萝卜素 维生素A 转化效率
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中老年人β-胡萝卜素转化为维生素A的效率 被引量:5
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作者 汪之顼 焦华 +3 位作者 曹敏光 赵显峰 荫士安 汤广文 《营养学报》 CAS CSCD 北大核心 2004年第1期13-18,共6页
目的:了解中国成人体内β-胡萝卜素( β-carotene, β-C ) 转化维生素A (VA)的效率。方法:使用稳定同位素稀释法对11名50~60岁健康志愿者(男7,女4)进行 β-C人体代谢实验。2 w适应期和8 w实验期内,志愿者接受常规膳食,避免大量VA和 ... 目的:了解中国成人体内β-胡萝卜素( β-carotene, β-C ) 转化维生素A (VA)的效率。方法:使用稳定同位素稀释法对11名50~60岁健康志愿者(男7,女4)进行 β-C人体代谢实验。2 w适应期和8 w实验期内,志愿者接受常规膳食,避免大量VA和 β-C摄入及烟、酒和营养制剂。实验D1 ,给受试者含6 mg氘标记 β-C(2H8 β-C )玉米油胶丸,随半流质早餐(脂肪热能比25%)一起摄入。实验D4 ,同样方法摄入含3 mg氘标记醋酸视黄醇(2H8 -RAc ) 油剂胶丸。实验D1 和D4 摄入标记物后0、3、5、7、9、11、13 h时,实验D2、3、 5、6、7、8、9、10、14、21、28、35、42、49、56 晨空腹时,采静脉血。用高效液相色谱仪 (HPLC) 分离血清 β-C和VA 组分,再分别使用气相质谱仪 ( GC/MS )和液相质谱仪 ( LC/MS ) 测定VA和 β-C组分的同位素丰度。根据VA和 β-C的浓度和同位素丰度,描述标记VA和 β-C在体内应答的血液动力学曲线。结果: 11名受试者对口服2H8–RAc和2H8-C的应答均非常明显;52 d时血清中2H4视黄醇(来自2H8 β-C)的曲线下面积(AUC )平均为1 102 ± 658 nmol/d,52 d的2H8视黄醇(来自2H8 -RAc)的AUC平均为3659 ±787 nmol/d, 以摄入的2H8 –RAc作为VA参照,计算来自摄入2H8-C的2H4 视黄醇平均为2599 ±1180 nmol/d 。由此计算 展开更多
关键词 中老年人 Β-胡萝卜素 转化 维生素A 同位素稀释法
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印度洋鸢乌贼氧化三甲胺脱甲基酶的分离纯化及生化特性的研究 被引量:4
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作者 冯慧 付雪艳 +1 位作者 薛长湖 刘鑫 《食品与发酵工业》 CAS CSCD 北大核心 2008年第9期27-32,共6页
对印度洋鸢乌贼肌肉中的氧化三甲胺脱甲基酶(TMAOase)进行了研究。将鸢乌贼肌肉用20 mmol/LTris-醋酸缓冲液萃取,经酸、热处理后通过DE52阴离子交换柱层析和Sephacryl S-300凝胶柱层析得到纯化300倍的TMAOase。纯化得到的TMAOase分子质... 对印度洋鸢乌贼肌肉中的氧化三甲胺脱甲基酶(TMAOase)进行了研究。将鸢乌贼肌肉用20 mmol/LTris-醋酸缓冲液萃取,经酸、热处理后通过DE52阴离子交换柱层析和Sephacryl S-300凝胶柱层析得到纯化300倍的TMAOase。纯化得到的TMAOase分子质量为18.2 ku,最适温度和pH分别为55℃和7.0;而且该酶在50℃和pH 7.0~9.0具有很好的稳定性。TMAOase的活性可被茶多酚、植酸和冰醋酸抑制。此外,TMAOase可以将TMAO等量转化成二甲胺(DMA)和甲醛(FA),Km为24.7 mmol/L。 展开更多
关键词 印度洋鸢乌贼 氧化三甲胺脱甲基酶(TMAOase) 分离纯化 生化特性
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恶性疟原虫信号肽肽酶-绿色荧光蛋白突变株的建立及其在疟原虫体内的表达分析
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作者 李学荣 吴银娟 +4 位作者 尚梅 李晔 徐劲 余新炳 ATHAR Chishti 《中国寄生虫学与寄生虫病杂志》 CAS CSCD 北大核心 2014年第4期253-257,共5页
目的构建恶性疟原虫(Plasmodium falciparum)信号肽肽酶(PfSPP)基因转染载体,筛选可在体内表达疟原虫信号肽肽酶-绿色荧光蛋白(PfSPP-GFP)的疟原虫。方法提取Trager-Jensen法培养的恶性疟原虫3D7株基因组DNA,PCR扩增PfSPP C端不含终止... 目的构建恶性疟原虫(Plasmodium falciparum)信号肽肽酶(PfSPP)基因转染载体,筛选可在体内表达疟原虫信号肽肽酶-绿色荧光蛋白(PfSPP-GFP)的疟原虫。方法提取Trager-Jensen法培养的恶性疟原虫3D7株基因组DNA,PCR扩增PfSPP C端不含终止密码子的883 bp基因片段,克隆构建重组转染载体pSPPcGT。重组载体经PCR和双酶切鉴定后送测序。电转化法将重组载体转染入恶性疟原虫体内,采用5 nmol/L恶性疟原虫二氢叶酸还原酶抑制剂WR99210筛选转染后,恶性疟原虫经无水乙醇固定、4′,6-二脒基-2-苯基吲哚(DAPI)染色后,荧光显微镜下观察PfSPP-GFP在其体内的表达分布情况。提取筛选后恶性疟原虫全蛋白,Western blotting分析虫体内PfSPP-GFP蛋白的表达情况。结果 PCR扩增获得PfSPP基因C端不含终止密码子的DNA片段,大小为883 bp。构建的重组转染载体pSPPcGT经PCR鉴定、双酶切鉴定和测序鉴定均正确。荧光显微镜观察结果显示,筛选后恶性疟原虫细胞内有绿色荧光蛋白表达,主要位于细胞质中,表明PfSPP-GFP已成功转染至恶性疟原虫并表达。Western blotting分析结果显示,转染的恶性疟原虫可表达含PfSPP-GFP融合蛋白,与预期相对分子质量(Mr)64 000大小一致。结论构建了恶性疟原虫PfSPP-GFP重组转染载体,筛选获得了能在疟原虫体内表达PfSPP-GFP的突变株。 展开更多
关键词 恶性疟原虫 信号肽肽酶 绿色荧光蛋白 转染
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乙醇对肌肉卫星细胞myogenin表达的影响
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作者 沈干 吴京 Gordon Huggins 《东南大学学报(医学版)》 CAS 2012年第6期674-680,共7页
目的:探讨慢性酒精中毒过程中乙醇对肌肉卫星细胞myogenin表达的影响及其在酒精性肌肉损伤中的作用。方法:(1)体外实验:取Sprage-Dowley大鼠,原代培养大鼠肌肉卫星细胞,设实验组(乙醇作用组)与对照组(正常培养液对照组),培养细胞至80%... 目的:探讨慢性酒精中毒过程中乙醇对肌肉卫星细胞myogenin表达的影响及其在酒精性肌肉损伤中的作用。方法:(1)体外实验:取Sprage-Dowley大鼠,原代培养大鼠肌肉卫星细胞,设实验组(乙醇作用组)与对照组(正常培养液对照组),培养细胞至80%融合时,更换为分化培养液,对实验组与对照组卫星细胞形成的肌管计数,并观察卫星细胞myogenin的表达。(2)动物实验:予小鼠乙醇饮食(1个月)制造乙醇中毒动物模型,在损伤后肢肌肉后第2、7天取组织切片观察损伤部位肌肉卫星细胞增殖及新肌束形成情况。结果:实验组肌管计数及卫星细胞myogenin的表达均低于对照组(P<0.05),但乙醇饮食小鼠损伤肌肉标本中卫星细胞及新肌束数量与正常饮食小鼠差异无统计学意义(P>0.05)。结论:乙醇可以通过降低肌肉卫星细胞的myogenin表达抑制其肌性分化,减少卫星细胞形成肌管的数量。 展开更多
关键词 肌肉 卫星细胞 乙醇 MYOGENIN 分化
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丝蛋白复合骨形态发生蛋白2在大鼠炎性牙髓愈合中的作用 被引量:1
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作者 余涛 姜婷 +2 位作者 魏青梅 李宜芬 David L.Kaplan 《北京大学学报(医学版)》 CAS CSCD 北大核心 2015年第5期814-819,共6页
目的:探讨将丝蛋白复合骨形态发生蛋白2(bone morphogenetic protein 2,BMP-2)作为盖髓剂,治疗由脂多糖(lipopolysaccharide,LPS)引起的大鼠炎性牙髓的效果。方法:30只雄性Wistar大鼠,随机分为5组:(1)未手术正常对照组;(2)... 目的:探讨将丝蛋白复合骨形态发生蛋白2(bone morphogenetic protein 2,BMP-2)作为盖髓剂,治疗由脂多糖(lipopolysaccharide,LPS)引起的大鼠炎性牙髓的效果。方法:30只雄性Wistar大鼠,随机分为5组:(1)未手术正常对照组;(2)空白对照组(无盖髓剂);(3)氢氧化钙组;(4)静电纺丝丝蛋白组(简称丝蛋白组);(5)静电纺丝丝蛋白复合BMP-2组(简称丝蛋白复合BMP-2组)。将第2∽5组双侧上颌第一磨牙开髓并放置LPS,不使用盖髓剂或使用相应盖髓剂,然后封闭开髓孔。所有组于术后第3、7、14天制作石蜡切片,行HE染色及CD14免疫组织化学染色,采用image-pro plus(IPP)软件测量免疫组织化学染色的光密度(D)值。结果:HE染色结果显示丝蛋白复合BMP-2组在各盖髓组中,术后7及14 d炎性细胞分级最低,其次是氢氧化钙组及丝蛋白组,空白对照组最高;修复性牙本质形成分级的高低顺序则相反。CD14免疫组织化学染色结果显示术后3及7 d,使用盖髓剂的3个组之间D值差异无统计学意义,但均显著低于空白对照组;14 d时丝蛋白复合BMP-2组D值(0.145±0.011)显著低于空白对照(0.287±0.019)、氢氧化钙(0.170±0.017)、丝蛋白(0.175±0.018)3个组(P〈0.05)。结论:丝蛋白复合BMP-2应用于炎性牙髓的盖髓,能减轻炎症,诱导修复性牙本质的形成,提高对炎性牙髓的治疗效果。 展开更多
关键词 骨形态发生蛋白2 脂多糖类 牙髓炎 牙髓覆盖术 丝素蛋白质类
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复方健耳剂对抗老年性耳蜗神经细胞凋亡超微结构观察及上调NeuN和BDNF定位表达作用 被引量:7
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作者 宣伟军 黄力毅 +2 位作者 宣毅 唐俊波 韦瑀龙 《中国实验动物学报》 CAS CSCD 北大核心 2020年第3期338-344,共7页
目的利用透射电镜观察中药复方健耳剂干预小鼠老年性耳蜗外毛细胞(outer hair cell,OHC)、螺旋神经节神经元(spiral ganglion neurons,SGN)凋亡作用;共聚焦显微镜,结合形态学多重免疫荧光技术,观察复方健耳剂对耳蜗SGN的特异性核抗原蛋... 目的利用透射电镜观察中药复方健耳剂干预小鼠老年性耳蜗外毛细胞(outer hair cell,OHC)、螺旋神经节神经元(spiral ganglion neurons,SGN)凋亡作用;共聚焦显微镜,结合形态学多重免疫荧光技术,观察复方健耳剂对耳蜗SGN的特异性核抗原蛋白(Neu N)、脑源性神经营养因子(BDNF)定位表达影响作用,探讨其作用机制。方法选择1月龄C57BL/6J小鼠22只并随机分为两组,其中11只小鼠每日饮用自来水直到7个月作为老年性耳蜗退变对照组(简称7月龄对照组);11只小鼠每日饮用复方健耳剂1.83 g/(kg·d)直到7个月作为中药干预组(简称7月龄中药组)。所有动物期满取出耳蜗,制备石蜡包埋切片,在透射电镜下,重点选择观察7月龄对照组耳蜗底回存留尚未解体的OHC以及对应部位的SGN超微结构变化,同时与7月龄中药组相同部位的OHC和SGN进行对照。利用激光共聚焦显微镜,结合形态学多重免疫荧光技术,观察Neu N与BDNF在SGN定位表达,并进行统计分析。结果 7月龄对照组耳蜗底回存留尚未解体的OHC以及对应部位的SGN,胞体萎缩,胞核不整,核染色质聚集成团、边集,纹理结构模糊,电子密度高,尤其是SGN大小形态不一,数量明显减少,甚至核染色质溶解,形成空泡,或解体缺如等,呈现严重凋亡状况。而7月龄中药组耳蜗底回OHC或SGN凋亡状况不明显,细胞形态结构较完整,数量较多,核染色质分布较均匀,纹理结构清晰,电子密度低,仅个别胞核溶解,形成空泡。与7月龄对照组比较,7月龄中药组耳蜗底回SGN中的Neu N与BDNF定位表达密度较高,数量较多(P<0.05)。结论耳蜗OHC或SGN细胞核超微结构改变、Neu N表达减少是老年性耳蜗神经细胞凋亡的重要特征;同期SGN凋亡早于OHC;中药复方健耳剂具有明显对抗OHC或SGN超微结构改变,其对SGN中的Neu N表达明显增多,提示中药具有明显保护SGN作用,与透射电镜观察一致,其作用机制与促进BDNF表达,从而发挥系列生物学效应有关。 展开更多
关键词 小鼠 老年性聋 耳蜗神经细胞 超微结构 中医药 NEUN BDNF
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从“无痛分娩中国行”看中国的分娩镇痛 被引量:66
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作者 胡灵群 李韵平 +2 位作者 夏云 陶为科 赵培山 《临床麻醉学杂志》 CAS CSCD 北大核心 2013年第2期205-208,共4页
“无痛分娩中国行”为2006年由美国西北大学发起的公益性医疗活动,旨在推行安全有效的椎管内分娩镇痛,改变中国高剖宫产率和低分娩镇痛率的现状,提高产妇、胎儿及新生儿的安全性。计划在10年内,帮助建立10个以上培训基地,将椎管内... “无痛分娩中国行”为2006年由美国西北大学发起的公益性医疗活动,旨在推行安全有效的椎管内分娩镇痛,改变中国高剖宫产率和低分娩镇痛率的现状,提高产妇、胎儿及新生儿的安全性。计划在10年内,帮助建立10个以上培训基地,将椎管内分娩镇痛率提高10%,每年让150万产妇受益。已在10家医院产房一线工作1080h,讲课百场,累计170多人次参加。以下是笔者对中国的分娩镇痛发展的感悟。 展开更多
关键词 分娩镇痛 无痛分娩 中国 医疗活动 剖宫产率 椎管内 安全性 公益性
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High-flow nasal oxygen availability for sedation decreases the use of general anesthesia during endoscopic retrograde cholangiopancreatography and endoscopic ultrasound 被引量:10
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作者 Roman Schumann Nikola S Natov +4 位作者 Klifford A Rocuts-Martinez Matthew D Finkelman Tom V Phan Sanjay R Hegde Robert M Knapp 《World Journal of Gastroenterology》 SCIE CAS 2016年第47期10398-10405,共8页
AIM To examine whether high-flow nasal oxygen(HFNO) availability influences the use of general anesthesia(GA) in patients undergoing endoscopic retrograde cholangiopancreatography(ERCP) and endoscopic ultrasound(EUS) ... AIM To examine whether high-flow nasal oxygen(HFNO) availability influences the use of general anesthesia(GA) in patients undergoing endoscopic retrograde cholangiopancreatography(ERCP) and endoscopic ultrasound(EUS) and associated outcomes.METHODS In this retrospective study, patients were stratified into 3 eras between October 1, 2013 and June 30, 2014 based on HFNO availability for deep sedation at the time of their endoscopy. During the first and last 3-mo eras(era 1 and 3), no HFNO was available, whereas it was an option during the second 3-mo era(era 2). The primary outcome was the percent utilization of GA vs deep sedation in each period. Secondary outcomes included oxygen saturation nadir during sedation between periods, as well as procedure duration, and anesthesia-only time between periods and for GA vs sedation cases respectively.RESULTS During the study period 238 ERCP or EUS cases were identified for analysis. Statistical testing was employed and a P < 0.050 was significant unless the Bonferroni correction for multiple comparisons was used. General anesthesia use was significantly lower in era 2 compared to era 1 with the same trend between era 2 and 3(P = 0.012 and 0.045 respectively). The oxygen saturation nadir during sedation was significantly higher in era 2 compared to era 3(P < 0.001) but not between eras 1 and 2(P = 0.028) or 1 and 3(P = 0.069). The procedure time within each era was significantly longer under GA compared to deep sedation(P ≤ 0.007) as was the anesthesia-only time(P ≤ 0.001).CONCLUSION High-flow nasal oxygen availability was associated with decreased GA utilization and improved oxygenation for ERCP and EUS during sedation. 展开更多
关键词 Endoscopic ultrasound Endoscopic retrograde cholangiopancreatography ENDOSCOPY SEDATION ANESTHESIA OXYGENATION High flow nasal oxygen
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C-peptide as a key risk factor for non-alcoholic fatty liver disease in the United States population 被引量:8
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作者 Amporn Atsawarungruangkit Jirat Chenbhanich George Dickstein 《World Journal of Gastroenterology》 SCIE CAS 2018年第32期3663-3670,共8页
AIM To determine whether fasting C-peptide is an independent predictor for non-alcoholic fatty liver disease(NAFLD) in United States population.METHODS Using the National Health and Nutrition Examination Survey(NHANES... AIM To determine whether fasting C-peptide is an independent predictor for non-alcoholic fatty liver disease(NAFLD) in United States population.METHODS Using the National Health and Nutrition Examination Survey(NHANES) 1988-1994, NAFLD participants aged 20 or greater without any other liver diseases were included in this study. Excessive alcohol intake is defined as > 2 drinks per day for males and > 1 drink per day for females. C-peptide and 27 other factors known to be associated with NAFLD(e.g., age, gender, body mass index, waist circumference, race/ethnicity, liver chemistries, and other diabetes tests) were tested in both univariate and multivariate level using logistic regression with a P-value 0.05.RESULTS Of 18825 participants aged ≥ 20, 3235 participants(n = 3235) met inclusion criteria. There were 23 factors associated with NAFLD by univariate analysis. 9 factors, ranked by the highest change in pseudo R2, were found to be significant predictors of NAFLD in multivariate model: waist circumference, fasting C-peptide, natural log of alanine aminotransferase(ALT), total protein, beingMexican American, natural log of glycated hemoglobin, triglyceride level, being non-Hispanic white, and ferritin level. CONCLUSION Together with waist circumference and ALT, fasting C-peptide is among three most important predictors of NAFLD in United States population in the NHANES data set. Further study is needed to validate the clinical utility of fasting C-peptide in diagnosis or monitoring insulin resistance in NAFLD patients. 展开更多
关键词 INSULIN resistance FATTY liver HEPATOSTEATOSIS METABOLIC syndrome C-PEPTIDE
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Epidemiology of Hepatitis B and Associated Liver Diseases in China 被引量:17
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作者 Yao Zhang Hua Zhang +1 位作者 Au Elizabeth Xiao-qing Liu 《Chinese Medical Sciences Journal》 CAS CSCD 2012年第4期243-248,共6页
Hepatitis B virus (HBV) infection has long been a critical public health challenge in China. National surveys revealed a prevalence of approximate 10% for chronic HBV infection in general population. HBV has been the ... Hepatitis B virus (HBV) infection has long been a critical public health challenge in China. National surveys revealed a prevalence of approximate 10% for chronic HBV infection in general population. HBV has been the leading cause of chronic hepatitis, cirrhosis, and liver cancers in Chinese population and a common pathogen of acute viral hepatitis. Meanwhile, the epidemic provided important opportunities to research the natural history, public health impact, and therapeutic and preventive interventions for HBV in China. In this review, we summarized the selected key epidemiological studies since 1970s regarding HBV infection and its associated liver diseases in China, and provided considerations for future research, prevention and treatment of HBV. 展开更多
关键词 hepatitis B EPIDEMIOLOGY CIRRHOSIS hepatocellular carcinoma
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Exercise-induced irisin in bone and systemic irisin administration reveal new regulatory mechanisms of bone metabolism 被引量:26
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作者 Jin Zhang Paloma Valverde +9 位作者 Xiaofang Zhu Dana Murray Yuwei Wu Liming Yu Hua Jiang Michel M Dard Jin Huang Zhiwei Xu Qisheng Tu Jake Chen 《Bone Research》 SCIE CAS CSCD 2017年第1期49-62,共14页
Irisin is a polypeptide hormone derived from the proteolytic cleavage of fibronectin-type III domain- containing 5 (FNDC5) protein. Once released to circulation upon exercise or cold exposure, irisin stimulates brow... Irisin is a polypeptide hormone derived from the proteolytic cleavage of fibronectin-type III domain- containing 5 (FNDC5) protein. Once released to circulation upon exercise or cold exposure, irisin stimulates browning of white adipose tissue (WAT) and uncoupling protein I (UCP1) expression, leading to an increase in total body energy expenditure by augmented UCPl-mediated thermogenesis. It is currently unknown whether irisin is secreted by bone upon exercise or whether it regulates bone metabolism in vivo. In this study, we found that 2 weeks of voluntary wheel-running exercise induced high levels of FNDC5 messenger RNA as well as FNDC5/irisin protein expression in murine bone tissues. Increased immunoreactivity due to exercise-induced FNDC5/irisin expression was detected in different regions of exercised femoral bones, including growth plate, trabecular bone, cortical bone, articular cartilage, and bone-tendon interface. Exercise also increased expression of osteogenic markers in bone and that of UCP1 in WAT, and led to bodyweight loss. Irisin intraperitoneal (IP) administration resulted in increased trabecular and cortical bone thickness and osteoblasts numbers, and concurrently induced UCP1 expression in subcutaneous WAT. Lentiviral FNDC5 IP administration increased cortical bone thickness. In vitro studies in bone cells revealed irisin increases osteoblastogenesis and mineralization, and inhibits receptor activator of nuclear factor-kB ligand (RANKL)- induced osteoclastogenesis. Taken together, our findings show that voluntary exercise increases irisin production in bone, and that an increase in circulating irisin levels enhances osteogenesis in mice. 展开更多
关键词 Exercise-induced irisin in bone and systemic irisin administration reveal new regulatory mechanisms of bone metabolism BONE
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