Objective： To comparatively study the expressive conditions of platelet activation related factors （GPⅠb, GPⅡb-Ⅲa and GMP-140） in healthy subjects and patients with coronary heart disease （CHD） of blood-stasis...Objective： To comparatively study the expressive conditions of platelet activation related factors （GPⅠb, GPⅡb-Ⅲa and GMP-140） in healthy subjects and patients with coronary heart disease （CHD） of blood-stasis （BS） or non-blood-stasis （non-BS） syndrome, and to analyze the relationship between the activities of various glycoproteins and the polymorphism of genes. Methods： With case control design adopted, patients with the CHD （40 of BS, 37 of non-BS） and 39 healthy subjects for control, all fitting to the inclusion criteria, were selected in this study. The number of affected coronary branches was recorded by the contrast examination. The mean fluorescence intensity （MFI） of GPⅠb, GPⅡb-Ⅲa, and GMP-140 （CD42b, CD61, CD62p） in patients and healthy persons was measured with flow cytometry, the polymorphism of HPA-3 gene was detected by Taqman probe technique and that of HPA-2 gene was determined by gene sequencing. Results： MFI of CD61 and CD62p was higher in the CHD patients than in the healthy control, which was also higher in patients of BS syndrome than in patients of non-BS syndrome （P〈0.05）; MFI of CD42b was lower in the CHD patients than in the healthy control （P〈0.05）, but showing insignificant difference between BS and non-BS syndrome （P〉0.05）; at the same time, no significant difference of all the above-mentioned three MFI could be found in patients with various numbers of affected coronary branches, neither in patients with different genotypes at GPⅡb HPA-3 and GPⅠb HPA-2 polymorphism loci （P〉0.05）. Conclusion： （1） The activities of GP Ⅱ b-Ⅲa and GMP-140 were obviously increased in the genesis and developing process of CHD and CHD of BS syndrome, and so they could be taken as one of the objective indexes for microscopic diagnosis of BS syndrome. （2） The level of GPⅠb was lower in CHD patients than in healthy persons, but it was not a sensitive indicator for BS syndrome of CHD. （3） Levels of GP Ⅱb-Ⅲa, GPⅠb and GMP-140 were not related with the number of affected coronary branches in CHD patients. （4） The changes in amino-acids expression induced by the two loci brought no significant influence on GPⅠb and GP Ⅱb-Ⅲa activities.展开更多
目的MHCI类相关基因（MHC class Ⅰ chain-related gene，MIC）与MHCI类基因连锁，同源性很高。我们的前期研究发现MICA和MICB微卫星多态性与溃疡性结肠炎（UC）相关，本研究继续探讨MICB第2、3、4外显子基因多态性与UC的相关性，以期发...目的MHCI类相关基因（MHC class Ⅰ chain-related gene，MIC）与MHCI类基因连锁，同源性很高。我们的前期研究发现MICA和MICB微卫星多态性与溃疡性结肠炎（UC）相关，本研究继续探讨MICB第2、3、4外显子基因多态性与UC的相关性，以期发现UC的易感基因。方法采用聚合酶链反应．单链构象多态性方法（PCR-SSCP），对105例湖北汉族UC患者和213例正常对照者进行MICB基因分型。结果UC患者的MICB 0106等位基因频率较正常组显著增高（19．0％比8．9％，P=0．000，Pc〈0．001，OR=2．402，95％CI为1．488～3．879）。在临床亚型分析中，MICB0106等位基因频率在全结肠炎、中重度UC组及有肠外表现的UC患者中均显著增高（分别为24．4％比8．9％，P=0．000，Pc〈0．001，OR=3．294，95％CI为1．800～6．027；24．1％比8．9％，P=0．000，Pc〈0．001，OR=3．249，95％CI为1．893～5．576；20．5％比8．9％，P=0．002，Pc=0．012，OR=2．626，95％CI为1．418～4．861）。而且MICB0106等位基因频率在男性和年龄≥40岁的患者中比正常组显著增高（分别为22．1％比8．0％，P=0．001，Pc=0．006，OR=3．276，95％CI为1．737～6．178；28．8％比8．3％，P=0．000，Pc〈0．001，OR=4．500，95％CI为2．381～8．504）。结论MICB0106等位基因与湖北汉族人UC存在显著相关性，而且与全结肠炎、中重度UC、肠外表现、男性及年龄≥4JD岁的患者有关，提示携带MICB0106等位基因的个体对UC存在遗传易感性。展开更多
基金Supported by the Major Program Project of National Natural Science Foundation of China(No.90409021)
文摘Objective： To comparatively study the expressive conditions of platelet activation related factors （GPⅠb, GPⅡb-Ⅲa and GMP-140） in healthy subjects and patients with coronary heart disease （CHD） of blood-stasis （BS） or non-blood-stasis （non-BS） syndrome, and to analyze the relationship between the activities of various glycoproteins and the polymorphism of genes. Methods： With case control design adopted, patients with the CHD （40 of BS, 37 of non-BS） and 39 healthy subjects for control, all fitting to the inclusion criteria, were selected in this study. The number of affected coronary branches was recorded by the contrast examination. The mean fluorescence intensity （MFI） of GPⅠb, GPⅡb-Ⅲa, and GMP-140 （CD42b, CD61, CD62p） in patients and healthy persons was measured with flow cytometry, the polymorphism of HPA-3 gene was detected by Taqman probe technique and that of HPA-2 gene was determined by gene sequencing. Results： MFI of CD61 and CD62p was higher in the CHD patients than in the healthy control, which was also higher in patients of BS syndrome than in patients of non-BS syndrome （P〈0.05）; MFI of CD42b was lower in the CHD patients than in the healthy control （P〈0.05）, but showing insignificant difference between BS and non-BS syndrome （P〉0.05）; at the same time, no significant difference of all the above-mentioned three MFI could be found in patients with various numbers of affected coronary branches, neither in patients with different genotypes at GPⅡb HPA-3 and GPⅠb HPA-2 polymorphism loci （P〉0.05）. Conclusion： （1） The activities of GP Ⅱ b-Ⅲa and GMP-140 were obviously increased in the genesis and developing process of CHD and CHD of BS syndrome, and so they could be taken as one of the objective indexes for microscopic diagnosis of BS syndrome. （2） The level of GPⅠb was lower in CHD patients than in healthy persons, but it was not a sensitive indicator for BS syndrome of CHD. （3） Levels of GP Ⅱb-Ⅲa, GPⅠb and GMP-140 were not related with the number of affected coronary branches in CHD patients. （4） The changes in amino-acids expression induced by the two loci brought no significant influence on GPⅠb and GP Ⅱb-Ⅲa activities.
