普洱茶籽的化学成分研究

普洱茶籽乙醇提出物的正丁醇萃取部分,经酸水解后,分离出5种成分,经光谱和化学分析,分别鉴定为二十八烷烃,柚皮素和3种新酯酰基皂甙元22-O-当归酸酯茶皂甙元B,22-O-当归酸酯茶皂甙元E和22-O-当归酸酯茶皂甙元A。     

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.     

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.     

云南产螺旋藻多糖抗氧化抗疲劳作用的实验研究

从云南产螺旋藻中分离纯化出螺旋藻多糖（PSP）。12～14 mo小鼠igPSP100mg/kg、200 mg/kg,能降低心、肝、脑组织MDA含量,增加 RBC及脑SOD活力,使全血及肝应GSH-Px活性及 GSH含量升高。3～4 mo小鼠 ig PSP 100mg/kg、200 mg/比可提高血清 LDH活力,降低运动后血乳酸水平,并能延长小鼠游泳时间。表明PSP具有较明显的抗氧化抗疲劳作用。     

引流淋巴结树突状细胞对自身肿瘤细胞作用研究

目的　从胃癌患者引流淋巴结中分离和定向诱导培养扩增树突状细胞 (DC) ,观察其经自身肿瘤细胞抗原冲击后对自身细胞因子诱导的杀伤细胞 (CIK细胞 )杀伤活性的影响。方法　取手术切除肿瘤周围转移引流淋巴结 ,提取单个核细胞 ,将贴壁生长的细胞用细胞因子rhGM CSF、rhIL 4、rhTNF α联合诱导培养DC ,然后用自身肿瘤细胞抗原冲击DC并作用CIK细胞 ,最后检测CIK细胞杀伤三种靶细胞 (自身胃癌细胞、K5 6 2和SGC 790 1细胞 )的活性。结果　胃癌患者转移引流淋巴结中的贴壁细胞 ,经细胞因子联合诱导培养 ,DC含量可达 4 5 %。经自身肿瘤抗原冲击的引流淋巴结DC活化的CIK细胞 ,杀伤自身肿瘤细胞活性达 79 3% ,单纯CIK细胞为 33% ,两者比较差异有显著意义 (P <0 0 1) ;而对K5 6 2和SGC 790 1细胞杀伤活性无明显差异。结论　肿瘤周围转移引流淋巴结贴壁细胞在体外能定向诱导扩增出大量DC :DC经自身肿瘤抗原冲击后能明显提高CIK细胞对自身肿瘤细胞的杀伤活性。此结果为肿瘤DC的免疫治疗应用奠定了理论基础     

语前聋患儿国产人工耳蜗植入效果分析

目的 观察语前聋患儿植入诺尔康-晨星人工耳蜗(Nurotron-Venus cochlear implant,Nurotron-Venus CI)后的听觉言语发育情况及其安全性和稳定性.方法 回顾性分析郑州大学第一附属医院行Nurotron-Venus CI植入的78例语前聋患儿的临床资料,患儿植入年龄为13~96月,按植入年龄将患儿分为 A组(13~24月,16 例)、B 组(25~36月,13 例)、C组(37~48月,16 例)、D 组(49~72月,18 例)、 E 组(73~96月,15 例);在患儿术前及开机后1、3、6、12个月采用有意义听觉整合量表(meaningful auditory integration scale,MAIS)(C、D、E组)、婴幼儿有意义听觉整合量表(infant-toddler meaningful auditory integration scale,IT-MAIS )(A、B组)进行听觉能力评估,开机后1、3、6、12个月使用有意义言语使用量表(meaningful use of speech scale,MUSS)进行言语能力评估.术后行X线耳蜗平片检查明确电极位置及形态,定期随访了解术后相关并发症及佩戴人工耳蜗时间和使用情况.结果 所有患儿术前及开机后1、3、6、12月IT-MAIS或MAIS得分分别为1.67±1.19、6.60±5.12、11.86±5.44、17.41±5.04、22.87±5.46分,术后1、3、6、12月MUSS得分分别为5.01±3.26、8.38±3.58、11.88±3.88、16.58±4.95分,随着植入时间延长得分不断上升(均P<0.05);不同年龄组IT-MAIS或MAIS得分比较:术前A组低于C、D、E组,开机后1、3月A、B组低于E组,开机后6月A组低于C、D、E组,B组低于E组(均为P<0.05);不同年龄组MUSS得分比较:开机后1月B组低于E组,开机后3月A、B、C组低于E组,开机后6月A组低于C、D、E组,B组低于E组,开机后1年A组低于C、D、E组(均为P<0.05).所有患儿在开机后1、3、6、12月MUSS与IT-MAIS或MAIS得分相关系数分别为0.918、0.808、0.881、0.756(均为P<0.05),两者呈正相关.78例患儿术后耳蜗位X线平片均显示电极位置正常,形态良好;2例患儿出现处理器故障,其余CI整体工作状态良好.结论 语前聋患儿国产人工耳蜗植入后1年内,所有患儿的听觉言语能力随时间延长不断提高;小龄组患儿听觉言语得分在术后早期低于大龄患儿;听觉能力在开机后12月时已无差异,但小龄组患儿的言语能力仍低于大龄患儿;听觉整合能力越强,言语使用能力越强;Nurotron-Venus CI安全、效果可靠.