AIM: To determine the HLA-DQ locus in Mexican patients with Chronic gastritis and gastric adenocarcinoma.METHODS: Oligotyping for HLA-DQ locus was performed in 45 Mexican patients with chronic gastritis and 13 Mexic...AIM: To determine the HLA-DQ locus in Mexican patients with Chronic gastritis and gastric adenocarcinoma.METHODS: Oligotyping for HLA-DQ locus was performed in 45 Mexican patients with chronic gastritis and 13 Mexican patients with diffuse-type gastric adenocarcinoma, and was then compared with 99 clinically healthy unrelated individuals. H pylori infection and CagA status were assessed in patients by enzyme-linked immunosorbent assay (EUSA) method. RESULTS: We found a significant increased frequency of HLA-DQBI*0401 allele in Hpylori-positive patients with chronic gastritis when compared with healthy subjects [19 vs 0%, P = 1 × 10^-7, odds ratio (OR) = 4.96; 95% confidence interval (95% CI), 3.87-6.35]. We also found a significant increased frequency of HLA-DQBI*0501 in patients with diffuse-type gastric carcinoma in comparison with healthy individuals (P = 1 × 10^4, OR = 13.07; 95% CI, 2.82-85.14).CONCLUSION: HLA-DQ locus may play a different role in the development of H pylori-related chronic gastritis and difffuse-type gastric adenocarcinoma in the Mexican Mestizo population.展开更多
本文应用 PCR 法及 ASO 探针斑点杂交技术,对100例无关个体血液 DNA 及10例性犯罪案件混合斑中精子 DNA 进行了 HLA-DQα基因的扩增及其 DNA 分型。结果正常人0.1~0.3μgDNA 就能满足 DQα基因扩增的需要。在100例个体中可以观察到由4...本文应用 PCR 法及 ASO 探针斑点杂交技术,对100例无关个体血液 DNA 及10例性犯罪案件混合斑中精子 DNA 进行了 HLA-DQα基因的扩增及其 DNA 分型。结果正常人0.1~0.3μgDNA 就能满足 DQα基因扩增的需要。在100例个体中可以观察到由4种等位基因组成的10种 DQα基因型。10例不同条件的混合斑中精子 DNA 经30~60次扩增后与 ASO 探针杂交均能准确地判定 DQα基因型。HLA-DQα是个体识别能力较强的遗传标志。本文为性犯罪中精子来源的个体识别提供了一个新方法,具有一定的实用价值。展开更多
基金Supported in part by Consejo Nacional de Ciencia y Tecnologiagrant, Mexico, No. 153237
文摘AIM: To determine the HLA-DQ locus in Mexican patients with Chronic gastritis and gastric adenocarcinoma.METHODS: Oligotyping for HLA-DQ locus was performed in 45 Mexican patients with chronic gastritis and 13 Mexican patients with diffuse-type gastric adenocarcinoma, and was then compared with 99 clinically healthy unrelated individuals. H pylori infection and CagA status were assessed in patients by enzyme-linked immunosorbent assay (EUSA) method. RESULTS: We found a significant increased frequency of HLA-DQBI*0401 allele in Hpylori-positive patients with chronic gastritis when compared with healthy subjects [19 vs 0%, P = 1 × 10^-7, odds ratio (OR) = 4.96; 95% confidence interval (95% CI), 3.87-6.35]. We also found a significant increased frequency of HLA-DQBI*0501 in patients with diffuse-type gastric carcinoma in comparison with healthy individuals (P = 1 × 10^4, OR = 13.07; 95% CI, 2.82-85.14).CONCLUSION: HLA-DQ locus may play a different role in the development of H pylori-related chronic gastritis and difffuse-type gastric adenocarcinoma in the Mexican Mestizo population.
文摘本文应用 PCR 法及 ASO 探针斑点杂交技术,对100例无关个体血液 DNA 及10例性犯罪案件混合斑中精子 DNA 进行了 HLA-DQα基因的扩增及其 DNA 分型。结果正常人0.1~0.3μgDNA 就能满足 DQα基因扩增的需要。在100例个体中可以观察到由4种等位基因组成的10种 DQα基因型。10例不同条件的混合斑中精子 DNA 经30~60次扩增后与 ASO 探针杂交均能准确地判定 DQα基因型。HLA-DQα是个体识别能力较强的遗传标志。本文为性犯罪中精子来源的个体识别提供了一个新方法,具有一定的实用价值。