Non-diabetic urine glucose in idiopathic membranous nephropathy

This study aims to analyze the characteristics of idiopathic membranous nephropathy (iMN) with nondiabetic urine glucose during the follow-up. We retrospectively analyzed the data of 1313 patients who were diagnosed iMN. The prevalence of nondiabetic urine glucose during follow-up was 10.89%. There were significant differences between the patients with nondiabetic urine glucose and those without urine glucose in gender, hypertension ratio, proteinuria, N-acetyl-β-glucosaminidase, retinol binding protein, serum albumin, serum creatinine (Scr), cholesterol, triglyceride and positive anti-phospholipase A2 receptor antibody ratio, glomerular sclerosis ratio, acute and chronic tubular injury lesion at baseline. To exclude the influence of the baseline proteinuria and Scr, case control sampling of urine glucose negative patients was applied according to gender, baseline proteinuria and Scr. The proteinuria nonremission (NR) ratio was 45.83 versus 12.50% of the urine glucose positive group and case control group. Partial remission (PR) ratio of the two groups was 36.46 versus 23.96% and complete remission (CR) ratio was 19.79% versus 63.54%, respectively. Patients with urine glucose had higher risk of 50% estimated glomerular filtration rate (eGFR) reduction. Cox regression showed that urine glucose and baseline Scr were risk factors of 50% reduction of eGFR. Urine glucose remission ratio of the patients with proteinuria NR, PR, and CR was 13.33, 56.25, and 94.73% (p < 0.005). Patients who got urine glucose remission also had better renal survival. In conclusion, non-diabetic urine glucose was closely related to proteinuria. It could be applied as a tubular injury marker to predict renal function.     

Association of AGTR1 gene methylation and its genetic variant in Chinese farmer with hypertension: A case-control study

The objective was to determine the potential associations of the angiotensin II receptor type 1 (AGTR1) gene polymorphism, methylation, and lipid metabolism in Chinese farmers with hypertension.A case-control study was conducted in Wuzhi county of Henan province in China in 2013 to 2014. A total of 1034 local residents (35–74 years, 386 hypertensive cases, and 648 normotensive subjects) were enrolled in this study. Triglyceride (TG), total cholesterol (TC), high-density lipoprotein, and low-density lipoprotein were measured using automatic chemistry analyzer. The AGTR1 gene promoter methylation level was measured using quantitative methylation-specific polymerase chain reaction method. The single nucleotide polymorphism rs275653 was genotyped with TaqMan probe assay at an applied biosystems platform.The gender, body mass index (BMI), TG, TC, and family history of hypertension in the hypertension group were significantly higher than those in control group (P < .05). No significant difference was observed in the distribution of AGTR1 rs275653 polymorphism in the hypertension and controls (P > .05). The AGTR1 gene methylation in subjects carrying different genotypes was not significantly observed (P > .05). The logistic regression analysis found the AGTR1 gene methylation level was negative correlation with hypertension in the present study (odds ratio, 0.946, 95% confidence interval, 0.896–0.999) through adjusting for age, gender, BMI, education, smoking, alcohol drinking, fruit and vegetable intake, pickles intake, and family history of hypertension.The association of AGTR1 gene hypomethylation and essential hypertension was observed in Chinese farmers; no significant difference was observed in the distribution of AGTR1 rs275653 polymorphism.     

肝组织选择性细胞通讯类基因转录调控网络的构建

目的 探讨肝脏组织选择性基因表达的转录调控机制.方法 按照基因功能的差异对组织选择性Affymetrix探针集(共3919条探针)进行聚类,挑选肝组织选择性细胞通讯类(LSCC)基因进行研究.收集各基因上游的500个碱基序列,用3种软件分别预测这些基因的转录因子(TFs)以及转录因子结合位点(TFBS),并进行文献挖掘,最后构建基因转录调控网络.结果 获得含23个基因的肝组织选择性细胞通讯类探针集,两种软件预测分别得到50和72个TFs,两者交集有18个相同TFS,得分最高前10条TFBS序列基本上与预测的TFs相对应,文献挖掘结果提示LSCC基因和TFs除具有肝组织的选择性、转录因子的一般性词汇外,还与白蛋白、糖尿病、葡萄糖、脂类、代谢、JNK等显著相关.调控网络显示LSCC基因和TFs具有参与糖、脂代谢调节,结合、转运功能,凝血信号转导,炎症应答等功能,未进入网络的PPP2RIB基因与网络中DUSP10基因部分功能相似.结论 LSCC基因和预测的TFs参与肝脏多种重要功能的调控,这些功能整合在复杂的转录调控网络中,转录因子JUN可能是发挥调控作用的重要靶点,推测PPP2R1B也可能参与几肿的调控.     

PLC-γ1信号通路在H2O2诱导的PC12细胞凋亡中的作用

目的 探讨磷酸脂酶C-γ1(PLC-γ1)信号通路对H2O2诱导的PC12细胞凋亡作用的影响.方法 利用PLC-γ1特异性抑制剂U73122(10 pμmol/L)预处理PC12细胞,阻断50 μmol/LH2O2诱导的PLC-γ1信号通路,Hoechst/P1双染观察细胞形态改变,MTT评估细胞活力,流式细胞仪分析凋亡和坏死细胞比例,DNA电泳验证细胞凋亡状态的改变.结果 H2O2对PC12细胞活力的影响呈时效和量效关系.PLC-γ1信号通路阻断后,PC12细胞出现了凋亡形态学改变,细胞活力明显降低.流式细胞仪检测出现典型的凋亡亚二倍体峰,凋亡细胞所占比例达35.7%,DNA电泳呈现明显的梯形条带.结论 PLC-γ1信号通路在50 μmol/L H2O2诱导的PC12细胞凋亡中发挥重要的保护作用.     

慢性粒细胞白血病bcr/abl的糖基化磷脂酰肌醇锚定修饰及在COS-7细胞膜上的表达

目的 构建与糖基化磷脂酰肌醇(glycosyl phosphatidyl inositol,GPI)锚定序列相连的bcr/abl真核表达质粒,并检测其在COS-7细胞中基因和膜蛋白的表达.方法 以编码慢性粒细胞白血病bcr/abl融合蛋白全长序列的migP210质粒为模板,通过PCR扩增获得654 bp的bcr/abl融合基因片段,双酶切后定向插入真核表达载体pBudCF4.1中,经鉴定获得重组质粒pBB.同时用RT-PCR扩增人外周血淋巴细胞CD24分子中的GPI获得约243 bp的锚定序列,双酶切后克隆人pBB质粒中与ber/abl基因下游羧基端相连,获得重组质粒pBBG.在多聚阳离子介导下将pBBG质粒转染COS-7细胞,采用RT-PCR和Western blot检测bcr/abl融合基因和蛋白的表达.结果 经酶切和测序鉴定证实,由GPI锚定连接的ber/abl融合基因插入片段正确;RT-PCR检测到转染细胞中有bcr/abl融合基因,Western blot检测到转染细胞膜上有hcr/abl融合蛋白的表达.结论 成功构建由GPI锚定修饰的bcr/abl重组质粒pBBG,并能在COS-7细胞膜上表达出bcr/abl融合蛋白.     

上海和洛阳地区甲真菌病患者生活质量的比较研究

目的:比较上海和洛阳地区甲真菌病对患者生活质量的影响.方法:采用半定势调查问卷对上海和洛阳地区的甲真菌病患者进行调查分析和比较研究.结果:洛阳地区共调查96人,男41例(42.7%),女55例(57.3%);上海地区共调查118人,男52例(44.1%),女66例(55.9%).从甲真菌病对患者生活质量影响的严重程度赋值显示:在主观健康感受、情感受影响、思维受影响、社交障碍四方面,洛阳地区的患者所受的影响均大于上海地区.两地区的共同点为:甲真菌病对41～50岁年龄组,病程1～5年的患者,教育程度较高的患者生活质量影响较大.结论:由于不同地区的经济发展、文化等多方面的差异,不同地区甲真菌病患者生活质量受影响程度不同.     

登革Ⅱ型病毒M株、NGC株E基因部分序列原核蛋白多克隆抗体的制备

目的制备登革Ⅱ型病毒M株、NGC株E基因部分序列原核蛋白的小鼠多克隆抗体并进行鉴定。方法利用SDS-PAGE电泳的方法将纯化后的登革Ⅱ型病毒M株、NGC株E基因部分序列原核表达蛋白浓缩,切割目的条带并研磨制成抗原,皮下多点分次注射BALB/c小鼠,采用Western-Blot、间接免疫荧光法对小鼠血清多克隆抗体进行鉴定。结果经SDS-PAGE电泳成功地将纯化后的登革Ⅱ型病毒M株、NGC株E基因部分序列原核表达蛋白浓缩,并获取了抗登革Ⅱ型病毒M株、NGC株E基因部分序列原核表达蛋白的多克隆抗体。结论本实验中所用到的登革Ⅱ型病毒M株、NGC株E基因部分序列原核蛋白为可溶性抗原,通过切胶研磨制成颗粒性蛋白抗原能获得良好的免疫效果,该方法制备的抗原浓度及纯度高,由此获得了高效价高特异性的多克隆抗体。     

普伐他汀抑制oxLDL诱导的人外周血单核细胞CD11b表达及与内皮的粘附

目的探讨普伐他汀对氧化修饰低密度脂蛋白（ｏｘＬＤＬ）诱导的人外周血单核细胞（ＰＢＭｓ）粘附功能的影响,揭示其除调脂外的抗炎作用。方法在体外分离培养人ＰＢＭｓ和脐静脉内皮细胞（ＨＵＶＥＣ）,ＰＢＭｓ经ｏｘＬＤＬ诱导后,应用流式细胞仪和β Ｎ 乙酰氨基己糖苷酶比色法,检测单核细胞粘附分子ＣＤ１１ｂ表达及对ＨＵＶＥＣ的粘附,以及普伐他汀的作用。结果普伐他汀在５０μｍｏｌ·Ｌ－１即可抑制ｏｘＬＤＬ诱导的ＰＢＭｓ对ＨＵＶＥＣ的粘附以及下调ＣＤ１１ｂ的表达（Ｐ＜００１）,呈浓度依赖方式;甲羟戊酸可对抗此抑制作用。结论普伐他汀除调脂作用外,尚可抑制循环血单核 巨噬细胞至内皮粘附聚集,具有抗炎作用;其机制与普伐他汀抑制胆固醇前体物质甲羟戊酸生成有关。     

奎硫平与利培酮治疗首发精神分裂疗效对照分析

目的:比较奎硫平与利培酮治疗首发精神分裂症的疗效.方法:将符合条件的66例首发精神分裂症患者随机分成两组,分别给予奎硫平(奎硫平组)和利培酮(利培酮组),进行8周系统治疗,用阳性与阴性症状量表(PANSS)评估其临床疗效;以副反应量表(TESS)和有关实验室检查评定副反应.结果:治疗后两组患者PANSS评分均明显下降,两组之间差异无显著性(P均>0.05),但奎硫平起效较快,且在治疗后阴性症状分比较以奎硫平显著较好(P＜0.05);奎硫平组的副反应发生率低于利培酮组,但差异无显著性;两组药物引起的副反应均为轻度或中度,表现有所不同,患者耐受性好.结论:奎硫平和利培酮治疗精神分裂症疗效相当,奎硫平对阴性症状的改善好于利培酮;两者副反应较轻,副反应表现有所不同.两种药物均为疗效好、安全性高的抗精神病药物.     

十全大补汤对D-半乳糖模型小鼠学习记忆及抗氧化的研究

目的十全大补汤对D-半乳糖致衰老小鼠学习记忆能力及抗氧化作用的研究。方法连续给小鼠注射D-半乳糖6周,同时从第三周起给模型鼠灌胃十全大补汤,给药结束后,进行学习记忆行为测定,采血清测定超氧化歧化酶（SOD）、丙二醛（MDA）含量。结果十全大补汤组小鼠的学习、记忆获得和记忆消退的错误次数明显少于衰老模型组（P〈0．05）;与模型组比较,十全大补汤组小鼠血清SOD活性显著性降低。结论十全大补汤能改善D-半乳糖致衰老小鼠的学习记忆能力,提高体内SOD活性,增强其对自由基的清除能力,抑制脂质过氧化作用。