老年性胃溃疡病因及治疗方法

国内老年人消化性溃疡的发病率近年来呈上升趋势。≥65岁人群胃溃疡患病率为5．2％，≥70岁患病率增至8．5％。本文对老年性胃溃疡病因及治疗方法总结如下。     

侧脑室计算机三维重建及理论分析

目的 :建立便于推广、功能齐全、价廉的三维医学图像重建系统及进行三维重建。方法 :利用目前较先进的数码摄片技术和自行编制的软件系统 ,对层距 1.0 mm的人体头部断面共 2 4 0层进行侧脑室的三维重建 ,同时对头部整体行三维重建以其进行相对定位和比较。结果 :重建后的侧脑室可和头部进行参照显示 ,行旋转、透明处理和不同方向的任意剖割。结论 :较以 CT、MRI断面图像重建的模型增加了轮廓的准确性和器官内组织的鲜明色彩     

侧脑室计算机三维重建及理论分析

目的：建立便于推广,功能齐全,价廉的三维医学图像重建系统及进行三维重建。方法：利用目前较先进的数码摄片技术和自行编制的软件系统,对层距1．0mmr的人体头部断面共240层进行侧脑室的三维重建,同时对头部整体行三维重建以其进行相对定位和比较。结果：重建后的侧脑室可和头部进行参照显示,行旋转,透明处理和不同方法的任意剖割,结论：较以CT,MRI断面图像重建的模型增加了轮廓的准确性和器官内组织的鲜明色彩。     

少数民族葡萄糖-6-磷酸脱氢酶基因突变检测

目的 了解贵州省少数民族葡萄糖-6-磷酸脱氢酶(Glucose-6-phosphato dehydrogenase。G6PD)缺乏症的发生率、基因突变类型特点及分布特征。方法 对贵州省苗族、水族、瑶族2566人采用四氮唑蓝定性法初筛、G6PD／6PGD比值法验证，再经错配引物介导的聚合酶链反应／限制性酶切分析法检测中国人常见的基因突变型。结果 检出G6PD缺乏症175例，其中苗族检出G1388A突变7例、G1376T突变1例、A95G突变6例、C1024T突变8例；水族检出G1388A突变12例、G1376T突变24例、A95G突变9例、C1024T突变2例；瑶族检出G1388A突变15例、G1376T突变7例。结论 贵州省是G6PD缺乏症的高发区，贵州省苗族、水族、瑶族中都存在G1388A、G1376T这两种中国人常见G6PD突变型。为了解贵州省少数民族G6PD缺乏症的分布特征提供了原始数据。     

直接测序法与克隆测序法在单核苷酸多态性检测中的比较

目的:了解PCR产物直接测序法与克隆测序法在单核苷酸多态性(SNP)检测上的差别.方法:对2型糖尿病患者的载脂蛋白J外显子2基因及旁侧进行聚合酶链反应(PCR)扩增,分别对其产物进行直接测序和克隆测序.结果:在样本的检测中, PCR产物直接测序法所测序列与43～60 bp以后克隆测序相同;检出一个突变位点并与GenBank( DQ012938)发表序列一致.结论:PCR 产物直接测序法和克隆测序法都是检测SNP的有效方法,但前者不仅特异性强,敏感度高,而且比克隆测序方法更为快速简便,节省材料.     

贵州江口土家族男性葡萄糖-6-磷酸脱氢酶缺陷症的基因频率调查

目的 调查贵州省江口土家族男性葡萄糖-6-磷酸脱氢酶（G6PD）缺陷症的基因频率。方法 2002年10-11月随机选取227名江口当地土家族男性居民，采用四氮唑蓝（NBT）纸片定性法初筛G6PD缺陷症。G6PD／6PGD比值法定量确诊。结果 对贵州省江口县227名土家族男性进行筛查，共检出17例G6PD缺陷阳性。其基因频率为0．0749。结论 通过对贵州土家族G6PD缺乏症基因频率的调查和分析，初步了解了贵州省土家族G6PD缺乏症的分布特征。为该地区预防该疾病、指导临床、提高少数民族的素质及研究该民族起源提供了一定的依据。     

贵州省地方性氟中毒地区人群GSTP1基因Ile105Val位点多态性分析

Objective To investigate plasma glutathione S-transferase(GSTs) activity and GSTP1 gene Ile105Val polymorphism in Bijie City, Guizhou Province, a coal-burning fluorosis endemic area. Methods One hundred and sixty villagers from Yachi Twon using non-improved cooking stoves were selected as the non-intervened group in Bijie City, Guizhou Province where coal-burning fluorosis was prevailing; 153 villagers as the intervented group were chosen from Changchun Twon, where cooking stoves were improved; 151 villagers were served as the control group from Baiyunshan Twon, Changshun County without endemic fluorosis. The activity of GSTs was tested by colorimetric analysis with spectrophotometer. The genotype of the GSTP1 gene Ile105Val polymorphism, presenting as either homozygous wild-type (AA), or heterozygous mutation type (AG), or homozygous mutation type (GG), was detected through the PCR-RFLP procedure. Results The activity of GSTs in plasma of non-intervened group [(12.44±4.97) kU/L]was significantly lower than that of intervened group (P < 0.05), and that of intervened group[(20.78±6.20)kU/L]was significantly lower than that of control group[(24.30±6.27)kU/L, P< 0.05]. The difference of the enzyme activity of three groups were statistically significant (F = 51.71, P < 0.05), but this enzyme activity did not vary significantly in each sex of each grnup(P > 0.05). Compared intervened group [AA:67.3%(103/153), AG:29.4%(45/153),GG:3.3%(5/153)]and non-intervened group[AA:66.9%(107/160), AG:30%(48/160), GG:3.1%(5/160)]with control group[AA:74.8%(113/151), AG:25.2%(38/151), GG:0 (0/151)], the Ile105Val polymorphism site of GSTP1 gene had significant difference(χ2= 6.04,6.07, both P< 0.05), but not significant between intervened and non-intervened groups(χ2 = 0.02, P>0.05). Conclusions Fluorosis can decrease the activity of GSTs and introduce the GSTP1 gene Ile105Val polymorphism, intervention with the fluorine intake will improve the effect of fluoride on the body.     

贵州省地方性氟中毒地区人群GSTP1基因Ile105Val位点多态性分析

Objective To investigate plasma glutathione S-transferase(GSTs) activity and GSTP1 gene Ile105Val polymorphism in Bijie City, Guizhou Province, a coal-burning fluorosis endemic area. Methods One hundred and sixty villagers from Yachi Twon using non-improved cooking stoves were selected as the non-intervened group in Bijie City, Guizhou Province where coal-burning fluorosis was prevailing; 153 villagers as the intervented group were chosen from Changchun Twon, where cooking stoves were improved; 151 villagers were served as the control group from Baiyunshan Twon, Changshun County without endemic fluorosis. The activity of GSTs was tested by colorimetric analysis with spectrophotometer. The genotype of the GSTP1 gene Ile105Val polymorphism, presenting as either homozygous wild-type (AA), or heterozygous mutation type (AG), or homozygous mutation type (GG), was detected through the PCR-RFLP procedure. Results The activity of GSTs in plasma of non-intervened group [(12.44±4.97) kU/L]was significantly lower than that of intervened group (P < 0.05), and that of intervened group[(20.78±6.20)kU/L]was significantly lower than that of control group[(24.30±6.27)kU/L, P< 0.05]. The difference of the enzyme activity of three groups were statistically significant (F = 51.71, P < 0.05), but this enzyme activity did not vary significantly in each sex of each grnup(P > 0.05). Compared intervened group [AA:67.3%(103/153), AG:29.4%(45/153),GG:3.3%(5/153)]and non-intervened group[AA:66.9%(107/160), AG:30%(48/160), GG:3.1%(5/160)]with control group[AA:74.8%(113/151), AG:25.2%(38/151), GG:0 (0/151)], the Ile105Val polymorphism site of GSTP1 gene had significant difference(χ2= 6.04,6.07, both P< 0.05), but not significant between intervened and non-intervened groups(χ2 = 0.02, P>0.05). Conclusions Fluorosis can decrease the activity of GSTs and introduce the GSTP1 gene Ile105Val polymorphism, intervention with the fluorine intake will improve the effect of fluoride on the body.     

进口药品再注册申请受理常见问题分析

目的：进一步明确进口药品再注册申请的受理要求。方法：根据相关规定,结合笔者工作经验,归纳总结进口药品再注册申请中的常见问题及解决方法。结果与结论：从一致性、规范性、完整性及有效性等方面提高进口药品再注册的申报资料质量,提高申报效率。     

贵州省江口县土家族葡萄糖-6-磷酸脱氢酶基因突变分析

目的 了解贵州省江口县土家族葡萄糖-6-磷酸脱氢酶（G6PD）缺陷症的基因频率、基因突变类型特点及分布特征，从分子水平揭示G6PD基因多态性。方法 采集世居当地土家族男性血液样本227例，用四氮唑蓝（NBT）纸片定性法及G6PD／6PGD比值法做G6PD缺陷症筛查。确诊者用错配引物介导的聚合酶链反应／限制性内切酶酶切分析法（PCR-RE）进行中国人常见9种G6PD基因突变型分析，突变特异性扩增系统法（ARMS）验证其中3种突变。结果227名土家族男性中检出17例G6PD缺陷者，总检出率7．49％，G6PD缺陷症基因频率0．0749。基因分析检出cDNA1388（G→A）12例，在G6PD缺陷者中的基因频率为0．706，未知突变5例，基因频率为0．294。结论 G6PD缺陷症在贵州土家族人群有着较高的基因频率，其主要突变类型为G6PD基因cDNA1388（G→A）。