Polymorphism of ACE gene and its relationship with serum ACE activity in the Hans in Chengdu region]

This study was aimed at the angiotensin converting enzyme (ACE) gene insertion/deletion(I/D) polymorphism distribution in Chinese and its relationship with serum ACE activity(SACE). SACE activity and ACE gene polymorphism in 90 healthy persons in Chengdu region were investigated using a spectrophotometric assay and the PCR technique, respectively. The results showed that, in the Hans, DD genotype of ACE gene was 18%, DI genotype 44%, and II genotype 38%. Allele frequencies were 0.40 for the D allele and 0.60 for the I allele. There were significant relationships between ACE I/D polymorphism and SACE activity. The results suggest that ACE genotype distribution be different between races, that II genotype and I allele be more frequent in Chinese, and that SACE activity be under the influence of a genetic polymorphism of ACE in Chinese.     

非增强门静脉磁共振成像技术研究

目的 通过使用不同成像序列及接收线圈,寻找最佳非增强门脉磁共振成像技术。方法 对２０例上腹部受检者行门静脉成像。以轴位为定位像,行冠状位扫描。其中１０例ＧＲＡＳＳ、ＧＲＡＳＳ＋ＥＡＴＳＡＴ、ＳＰＧＲ、ＳＰＧＲ＋ＦＡＴＳＡＴ４种序列扫描;１０例以体线圈、ＧＰＦ线圈及胸腰椎线圈和ＧＲＡＳＳ扫描。所得图像均进行ＭＩＰ重建,并对ＭＩＰ重建图像门静脉显示效果进行对比评价。结果 ＳＰＧＲ,ＧＲＡＳＳ信噪比、对     

2型糖尿病及其血管并发症患者血清ACE活性的变化

This investigation was made with reference to the changes of serum angiotensin converting enzyme (SACE) activity in type 2 diabetes and its vascular complications. SACE activity was studied in 127 type 2 diabetic patients and 90 healthy persons by using a spectrophotometric assay. The results showed SACE activity was obviously higher in diabetic patients (459.51 +/- 175.85 U) than in healthy persons (321.14 +/- 121.27 U); SACE activity was significantly higher in type 2 diabetic patients with diabetic nephropathy (548.27 +/- 166.60 U) than in patients without diabetic nephropathy (383.2 +/- 139.00 U), but there was no difference between patients with microalbuminuria and macroalbuminuria; no statistical difference was detected in SACE activity between diabetic patients with diabetic retinopathy (465.64 +/- 178.93 U) and without retinopathy (449.07 +/- 170.04 U); SACE activity was not associated with the course of diabetes, blood pressure, blood lipid and blood glucose. These data suggest that raised SACE activity might only play a role in the initiation of type 2 diabetes and diabetic nephropathy, but not relate to the progress of diabetic nephropathy, the onset of diabetic retinopathy and hypertension.     

肝素对脂多糖诱导人肾小球系膜细胞增殖及细胞分泌物影响

为了解肝素对脂多糖诱导人肾小球系膜细胞增殖和细胞因子分泌的影响。作者采用四甲基偶氮唑蓝比色分析法及生物活性法,分别测定了人肾小球ＭＣ增殖和细胞因子的分泌情况。结果显示;在正常培养条件下,人肾上球ＭＣ分泌一定理的白细胞介素６（ＩＬ－６０和肿瘤坏死因子α（ＴＮＦ－α）。脂多糖诱导ＭＣ增殖及分泌ＩＬ－６,ＴＮＦ－α。高浓度的肝素（５００Ｕ／ｍｌ）促进ＭＣ增殖及分泌细胞因子,低浓度的肝素（５Ｕ／ｍｌ）抑制     

Urban-rural comparison of HBV and HCV infection prevalence in eastern China

The present study was initiated to make and urban-rural comparison of the prevalence of cases positive to hepatitis B and C virus(HBV and HCV,respectively)infection markers in densely populated eastern half of China.For this purpose.10 survey sites were selected,i.e.,six sites in urban areas(the city group;Beijing,shangahi and four provincial capitals)and four sites in rural areas(the village group;one village each in Jilin and Shandong provinces,and two villages in Shaanxi Province),About 50 adult women per site volunteered to participate,from whom 494 valid bllod samples were collected.Positivities to HBsAg(HBsAg^ ),anti-HBs(anti-HBs^ )and antiHBc(anti-HBc^ )were examined by RIA methods.and that to anti-HCV(anti-HCV^ )by either EIA or RIA.Those positive to any one of the three HBV infection markers were taken as HBV infection-positive(HBV^ ).The prevalence of HBsAg^ ,HBV^ and anti-HBc^ was 8%,70%and 2.7% in the city group,and 8%,65% and 2.0%in the village group,and no significant difference was found between the two groups.The overall prevalence was 8% for HBsAg^ ,68% for HBV^ ,and 2.4% for anti-HVC^ ,The results were discussed in reference to some 20 papers each on HBV^ and anti-HCV^ prevalence in China published since(1991),The reviewing of these papers of anti-HCV was low(well below 5%),and that no substantial difference was found between the rural and urban populations.     

小学生学习困难综合干预前瞻性研究

目的 验证综合干预治疗小学生学习困难（ＬＤ）的效果。方法 ８４例ＬＤ学生分成干预组（４３例）和不干预组（４１例）作对照,用教育、家庭、学校干预和心理治疗及药物治疗进行综合干预。结果 二年后,干预组有效率（７６．７４％）、学习成绩及智商明显高于不干预组,ＬＤ和行为问题发生率明显低于后者（Ｐ〈０．０５～０．０１）。结论 综合干预是通过增强学生学习自信心,减少或消除心理行为问题,提高智力水平等综合发挥效     

房水引流植入物手术治疗顽固性青光眼

目的 :探讨房水机械引流手术在顽固性青光眼治疗中的应用价值。方法 :采用国产房水引流植入物 ,共治疗 11例(11眼 )顽固性青光眼 ,其中新生血管性青光眼 6眼 ,原发性绝对期青光眼 3眼 ,滤过性手术失败者 2眼。结果 :术后随访 3个月～9个月 ,平均 6 .5个月 ,眼压由术前 38mm Hg～ 6 7m m Hg降至术后 7mm Hg～ 33m m Hg。术后常见并发症浅前房 ,前房积血等。结论 :房水引流植入物手术为顽固性青光眼的治疗提供了新的途径。     

支气管肺炎患儿血清IL-6水平变化及临床意义

采用放免法检测了42例支气管肺炎和25例对照组小儿血清白细胞介素-6(IL-6)水平,结果显示肺炎患儿血清IL-6水平较对照组显著升高(P<0.01);重症肺炎与轻症肺炎患儿血清IL-6水平相比较有显著差异(P<0.001),病情越重,其水平也越高;IL-6水平与末梢血白细胞总数升高程度有一定相关,呈正比例关系。提示IL-6是反映肺炎感染严重程度的良好指标。     

Effects of intraperitoneal Ringer's lactate instillation and infusion on postsurgical adhesion formation

We compared the effects of continuous Ringer's lactate infusion and Ringer's lactate instillation on postsurgical adhesion formation in the rat model. The results show that intraperitoneal Ringer's lactate instillation reduces postsurgical adhesions. However, its efficacy is not improved by additional infusion of Ringer's lactate.     

心脏瓣膜替换术体外循环搏动性血流灌注临床应用研究

本文报道心脏瓣膜病二尖瓣替换或二尖瓣加主动脉瓣双瓣膜替换术６５例,用双盲法选择病例,其中体外循环搏动性血流灌注３３例,平流灌注３２例,两组比较：搏动组心脏自动复跳率明显提高,术中尿量明显增加,术后用呼吸机时间明显缩短,差异有极显著性（Ｐ＜００１）,肢体末梢皮肤温度恢复时间提前,应用心肌正性肌力药例数,时间明显减少,两组差异明显（Ｐ＜００５）,血红蛋白尿例数有所增高,血小板计数（ＰＣ）及术后引流量差异无显著性（Ｐ＞００５）,随搏动时间的延长,血浆游离血红蛋白呈进行性增高,平均每３０ｍｉｎ增高６ｍｇ,差异有非常显著性（Ｐ＜００１）。研究证明搏动性血流灌注明显优于平流灌注。