氨基葡萄糖胶囊干预膝骨关节炎患者外周血单个核细胞中软骨代谢相关基因的表达

背景:目前关于氨基葡萄糖的研究多集中于对膝骨关节炎的治疗作用,但关于其对膝骨关节炎患者外周血中软骨代谢相关基因影响的研究有限。目的:观察氨基葡萄糖胶囊对膝骨关节炎的治疗效果及对软骨代谢相关基因表达的影响。方法:选取2017年3月至2019年2月郑州大学附属郑州中心医院收治的90例膝骨关节炎患者,另选取同期医院体检中心收入的40例健康受试者,检测并对比健康受试者与膝骨关节炎患者治疗前外周血单个核细胞中软骨寡聚基质蛋白、Ⅱ型胶原纤维α1、聚糖蛋白、特异性组织抑制物3基因表达水平。采用随机数表法将膝骨关节炎患者分为常规组和研究组,分别给予双氯芬酸钠缓释片、双氯芬酸钠缓释片+氨基葡萄糖胶囊治疗12周,对比治疗前后2组外周血单个核细胞中各基因表达水平、Lequesne指数,统计治疗期间2组不良反应发生情况。结果与结论:①与健康受试者比较,膝骨关节炎患者外周血单个核细胞中软骨寡聚基质蛋白、特异性组织抑制物3 mRNA相对表达量升高(P<0.05),Ⅱ型胶原纤维α1、聚糖蛋白mRNA相对表达量降低(P<0.05);②治疗前研究组和常规组外周血单个核细胞中各基因表达水平比较,差异均无显著性意义(P>0.05);治疗后2组外周血单个核细胞中软骨寡聚基质蛋白、特异性组织抑制物3 mRNA相对表达量均低于治疗前,且研究组低于常规组(P<0.05);治疗后2组外周血单个核细胞中Ⅱ型胶原纤维α1、聚糖蛋白mRNA相对表达量均高于治疗前,且研究组高于常规组(P<0.05);③治疗前研究组和常规组Lequesne指数比较,差异均无显著性意义(P>0.05);治疗后2组Lequesne指数均低于治疗前,且研究组低于常规组(P<0.05);④研究组和常规组不良反应发生率比较,差异均无显著性意义(P>0.05);⑤结果表明,氨基葡萄糖胶囊可有效改善膝骨关节炎患者临床症状且安全可靠,可能通过抑制软骨寡聚基质蛋白、特异性组织抑制物3基因表达,促进Ⅱ型胶原纤维α1、聚糖蛋白基因表达实现的。     

Are there age induced morphologic variations of the superior glenoid labrum? About 100 shoulder arthroscopies

Different anterosuperior aspects of the glenoid labrum have already been described and are thought to be normal anatomical variations. The goals of this study were first to characterize these anterosuperior labral morphologies and then to analyze their variations in function of the patients’ age. One hundred shoulder arthroscopies were recorded to study the macroscopic characteristics of the anterosuperior labrum of the glenohumeral joint and its relationships with the proximal insertion of the tendon of the long head of the biceps. Then, patients were divided into two groups in function of their age (below and over 30 years old). Morphological modifications of the labrum were found in function of the age of the patient with an increase of the nonpathologic “mobile labrum” type after 30 years (P=0.0423). Therefore a mobile and loosely attached superior labrum should not always be considered as abnormal, especially in case of patient older than 30 years.     

应用长链RT-PCR法扩增我国登革2、4型病毒株全长cDNA

目的：采用长链RT-PCR技术扩增登革2型及4型病毒基因组全长cDNA，为构建登革病毒全长cDNA克隆、表达，深入阐明致病机理及探索新型疫苗奠定基础。方法：根据已测定的登革2、4型病毒全基因组序列，设计上下游引物。从感染登革病毒的乳鼠脑中提取病毒基因组RNA，采用长链RT-PCR技术进行扩增。为检验扩增产物的特异性，以PCR产物为模板扩增覆盖基因组的10个片段。将含有复杂二级结构的5′非编码区扩增片段，在377A型自动测序仪进行序列分析。结果：扩增出登革2、4型病毒基因组全长近11kb cDNA分子，非编码区测序结果表明扩增产物为登革2、4型病毒所特有。结论：利用长链RT-PCR首次成功扩增出登革病毒全长cDNA分子。     

Micropuncture studies on the filtration rate of single superficial and juxtamedullary glomeruli in the rat kidney

Summary Single nephron filtration rates of superficial and juxtamedullary nephrons were determined in high and low sodium rats. Single nephron GFR was calculated from TF/P inulin and tubular flow rate in superficial nephrons and single juxtamedullary GFR from corresponding data in long loops of Henle. In low sodium rats superficial nephron GFR was 23.5±6.4 (SD)×10^–6 ml/min×g KW, juxtamedullary nephron GFR was 58.2±13.6 and total kidney GFR (C _In) was 0.94±0.16 ml/min×g KW. Using these single nephron values, total kidney GFR and a total number of 30,000 glomeruli per kidney, the number of superficial and juxtamedullary glomeruli was calculated to be 23,267 and 6,733, respectively. During high sodium diet superficial nephron GFR increased to 38.1±11.3 and single juxtamedullary GFR decreased to 16.5±6.6, total kidney GFR increasing to 1.01±0.24. Calculation again revealed the same distribution of the two nephron types. End-proximal TF/P inulin in superficial nephrons was 2.36±0.36 in low sodium and 2.31±0.28 in high sodium rats. Loops of Henle TF/P inulin and intratubular flow rate were inversely related: the highest TF/P inulin values and lowest intratubular flow rates were found in the descending limb. These data quantify the distribution of superficial and juxtamedullary nephrons on a functional basis and suggest a mechanism by which the kidney adjusts sodium excretion by altering the contribution of each nephron type to total kidney GFR.Supported by the Deutsche Forschungsgemeinschaft and the U.S. Department of the Army, through its European Research Office.     

聪灵胶囊对小鼠软脑膜微循环障碍的改善作用

目的 观察聪灵胶囊对小鼠软脑膜微循环障碍的改善作用。方法 将60只小鼠随机分为聪灵胶囊大、中、小剂量组、阳性对照组和正常对照组，分别于灌胃给药10d后，开颅窗观察小鼠软脑膜微循环，然后在软脑膜局部滴加去甲肾上腺素复制微循环障碍模型，观察微循环障碍时小鼠软脑膜微循环。结果 聪灵胶囊各剂量组均可改善去甲肾上腺素所致的小鼠软脑膜局部微循环障碍．使微动脉扩张，血流增快，每视野交织网点数增多，对血流流态也有一定的改善作用，使血色变红。9min后聪灵胶囊各剂量组软脑膜局部微循环障碍基本恢复，而空白对照组恢复不明显。结论 聪灵胶囊能改善小鼠软脑膜微循环。     

Genetic variations in five genes involved in the excitement of cardiomyocytes

We provide here 29 genetic variations, including 28 novel ones, in five genes that are potentially involved in the excitement of cardiomyocytes: we found 4 in KCNA10, 2 in KCNK1, 8 in KCNK6, 11 in SLC18A1 (VMAT1), and 4 in SLC6A2 (norepinephrine transporter). We also examined their allelic frequencies in a Japanese population of long QT syndrome-affected and nonaffected individuals. These data would be useful for genetic association studies designed to investigate acquired arrhythmias. Received: May 22, 2001 / Accepted: June 8, 2001     

Electrophysiologic and histopathologic correlations in a case of permanent form of reciprocating tachycardia

A case of permanent junctional reciprocating tachycardia withpost-mortem documentation of an accessory atrioventricutar pathwayas the substrate of the arrhythmia is reported. Tachycardiahad lasted for 15 years and showed a retrograde P wave (P')and R–P' longer than P'–R interval. The tachycardiacircuit utilized a concealed posterior septal accessory pathwayas the retrograde limb. Because the arrhythmia was disablingand unresponsive to pharmacological treatment, the patient underwentclosed chest ablation of the His bundle. After the procedure,no anterograde or retrograde conduction over the normal conductionsystem was observed; anterograde conduction over the anomalouspathway showed decremental properties. Because of previous myocardialinfarction, the patient developed a ventricular aneurysm anddied suddenly 5 months after His bundle ablation. Histologicalexamination of the heart revealed a group of tiny fibromuscularbundles joining the lower rim of the coronary sinus outlet tothe summit of the interventricular septums; the anomalous atrioventricularconnection pursued a sinuous, tortuous path. The geometricaldisposition of the accessory pathway may have been responsiblefor the decremental properties of conduction observed duringlife.     

康妇炎胶囊联合米非司酮对输卵管异位妊娠患者疗效分析

目的 探讨康妇炎胶囊联合米非司酮治疗输卵管异位妊娠的临床效果和安全性。方法 选取2017年5月—2019年5月就诊于我院的84例输卵管异位妊娠患者,按随机数字表法分为两组,各42例。对照组予以米非司酮治疗,观察组加用康妇炎胶囊治疗。比较两组临床疗效、包块大小和血β-人绒毛膜促性腺激素(β-HCG)、性激素水平、不良反应情况。结果 观察组临床总有效率为92.86%,高于对照组的73.81%,差异有统计学意义(χ2=5.486,P=0.019);两组治疗后包块大小均较治疗前小,观察组治疗后包块大小为(0.84±0.12)cm,较对照组的(1.16±0.18)cm小(t=9.586,P＜0.001);两组β-HCG均较治疗前低,β-HCG为(312.04±63.65)U/L,较对照组的(435.14±68.41)U/L低,差异有统计学意义(t=8.538,P＜0.001);两组治疗后卵泡刺激素(FSH)、雌二醇(E2)和促黄体生成素(LH)水平低于治疗前,观察组治疗后FSH(12.03±2.11vs14.58±2.23,t=5.383,P＜0.001)、E2(143.69±15.62vs158.95±16.37,t=4.371,P＜0.001)、LH为(9.34±1.53vs13.05±2.18,t=9.028,P＜0.001)均低于对照组;两组不良反应相比,差异无统计学意义(χ2=0.138,P=0.457)。结论 康妇炎胶囊联合米非司酮可增强输卵管异位妊娠治疗效果,改善性激素水平,加快包块消失,促进β-HCG复常,安全可靠。     

普罗雌烯阴道胶丸联合定君生治疗老年性阴道炎的疗效分析

目的 研究普罗雌烯阴道胶丸联合定君生治疗绝经老年性阴道炎的疗效。方法 选取2019年1月—2021年1月本院就诊60例绝经一年以上且具有老年性阴道炎症状的患者,随机分为对照组和观察组,对照组采用定君生治疗,观察组采用普罗雌烯阴道胶丸联合定君生治疗,观察2组临床疗效、阴道健康评分、阴道微生态评分、临床症状消失时间以及6个月内的复发率。结果 治疗后观察组临床疗效为96.67%,高于对照组的73.33%,(χ2=4.705,P=0.030);观察组阴道健康评分为(15.54±3.36)分,高于对照组的(12.17±2.43)分(t=4.451,P<0.001),阴道微生态评分为(3.72±1.01)分,优于对照组的(5.83±1.54)分,(t=6.275,P<0.001);观察组分泌物异常消失时间为(8.46±1.15)d,短于对照组的(11.22±1.43)d,(t=8.238,P<0.001)、观察组阴道干涩消失时间为(8.68±1.52)d,短于对照组的(11.31±1.63)d,(t=6.643,P<0.001);6个月内复发率为3.33%,低于对照组的30.00%(χ2=5.880,P=0.015)。2组差异均有统计学意义。结论 使用普罗雌烯阴道胶丸联合定君生治疗绝经老年性阴道炎,可以明显提高患者临床疗效,降低患者复发率,值得临床推广应用。     

干扰lncRNA RHPN1-AS1表达通过靶向miR-339-5p对肝癌细胞增殖和凋亡的影响

目的:探讨长链非编码RNA PCNA1(lncRNA RHPN1)反义AS1(RHPN1-AS1)对肝癌细胞增殖和凋亡的影响及其作用机制。方法:将si-NC(lncRNA RHPN1-AS1阴性对照组)、si-RHPN1-AS1(沉默lncRNA RHPN1-AS1组)、pcDNA(真核表达载体组)、pcDNA-RHPN1-AS1(沉默lncRNA RHPN1-AS1真核表达载体组)、miR-NC(微小RNA-339-5p阴性对照组)及miR-339-5p(微小RNA-339-5p组)分别转染至肝癌细胞Huh7中,记为si-NC组、si-RHPN1-AS1组、pcDNA组、pcDNA-RHPN1-AS1组、miR-NC组和miR-339-5p组;将si-RHPN1-AS1质粒分别与anti-miRNC(微小RNA-339-5p抗结剂阴性对照)、anti-miR-339-5p(微小RNA-339-5p抗结剂)共转染至Huh7细胞中,记为si-RHPN1-AS1+anti-miR-NC组(沉默lncRNA RHPN1-AS1+微小RNA-339-5p抗结剂阴性对照组)、si-RHPN1-AS1+anti-miR-339-5p组(沉默lncRNA RHPN1-AS1+微小RNA-339-5p抗结剂组);转染均采用脂质体法。采用实时荧光定量聚合酶链反应(PCR)(RT-qPCR)检测正常肝细胞(THLE-2)、肝癌细胞株(Huh7、MHCCLM3、MHCC97H)中miR-339-5p和RHPN1-AS1表达水平;双荧光素酶报告实验检测RHPN1-AS1和miR-339-5p的靶向关系;用蛋白质印迹法检测细胞周期素D1(Cyclin D1)蛋白、P21蛋白、B细胞淋巴瘤/白血病-2(Bcl-2)及Bcl-2相关X蛋白(Bax)的表达水平;用流式细胞术检测细胞凋亡情况;用四甲基偶氮唑(MTT)比色法检测细胞活性。结果:与正常肝细胞THLE-2相比,肝癌细胞株Huh7、MHCCLM3、MHCC97H中RHPN1-AS1高表达,miR-339-5p低表达。RHPN1-AS1靶向调控miR-339-5p的表达。干扰RHPN1-AS1表达和miR-339-5p过表达的肝癌细胞Huh7中P21蛋白、Bax蛋白表达水平显著升高,Cyclin D1、Bcl-2水平显著降低,细胞活性显著降低,细胞凋亡率显著升高。下调miR-339-5p表达逆转了干扰RHPN1-AS1表达对肝癌细胞Huh7的增殖抑制和凋亡促进作用。结论:干扰RHPN1-AS1表达可抑制肝癌细胞的增殖,促进细胞凋亡,其机制可能与miR-339-5p表达有关,将可为肝癌的靶向治疗提供新靶点。