Objective To investigate the relationship of four single nucleotide polymorphism （SNP） haplotypes in the angiotensinogen （AGT） gene to the primary hypertension with or without cerebral infarction in the Li nationa...Objective To investigate the relationship of four single nucleotide polymorphism （SNP） haplotypes in the angiotensinogen （AGT） gene to the primary hypertension with or without cerebral infarction in the Li nationality of Hainan, China. Methods Total 300 subjects were allocated into three different groups： Groupl, 100 patients who have primary hypertension; Group 2, 100 patients who have primary hypertension with cerebral infarction; and control group, 100 healthy individuals. The genotypes of all subjects were determined by PCR-sequencing to analyze the four poly- morphisms at position - 152 （G-A）, -20 （A-C）, - 18 （C-T）, and -6 （A-G） in the promoter region of AGT. Results The frequen- cies ofCT genotype of AGT-18 and T allele in Group 1 （P = 0.003, P = 0.004） and Group 2 （P = 0.002, P = 0.002） were both significantly higher than in healthy controls. The frequency of G allele of AGT-6 was significantly higher in Group 2 than in the control group （P = 0.016）, while there is no significant difference between Group 1 and the control. Haplotype analysis revealed that H6 haplotype frequency which included -20C and -6G was significantly increased in Group 2 （P = 0.003） compared with the control group, while H5 haplotype frequency which included -20C and -18T was signifi- cantly increased in Group 1 （P = 0.006） versus the control. Conclusion The -20 （A-C） and - 18 （C-T） of the AGT may play an important role in pathogenesis of primary hypertension; and -20 （A-C）, -18 （C-T）, and -6 （A-G） may be the genetic risk factors for the onset of primary hypertension with cerebral infarction in the Li nationality of Halnan, China.展开更多
Objective Coronary heart disease （CHD） is a multifactorial disease. This meta-analysis was performed to evaluate the relationship between angiotensinogen gene polymorphisms and CHD in the Chinese population. Methods...Objective Coronary heart disease （CHD） is a multifactorial disease. This meta-analysis was performed to evaluate the relationship between angiotensinogen gene polymorphisms and CHD in the Chinese population. Methods We searched literature in pubmed （1990- 2010.8） and CNKI （1990-2010.8） for all the relevant studies on 2 angiotensinogen polymorphisms （M235T and T174M） and risk of CHD. The meta-analysis software Stata 10.0 was used for ascertaining heterogeneity among individual studies and for combining all the studies. Furthermore,Egger＇s test and sensitivity analysis were performed to insure authenticity of the outcome.Results Ten associations studies on 2 angiotensinogen polymorphisms （M235T and T174M） were included in this meta-analysis. In a combined analysis, the summary per-allele odds ratio for CHD of the M235T polymorphism was 1.374 （95% confidence interval, 1.019 to 1.852） and T174M polymorphism was 4.089 （95% confidence interval, 1.697 to 9.851）. Conclusions The M235T polymorphism had weak but statistically significant association with CHD while the T174M polymorphism was more strongly associated with a CHD risk in Chinese population, but further confirmation studies are needed展开更多
目的调查缓激肽β2受体(β2-bradyk in in receptor,β2-BKR)基因和血管紧张素原(angiotensinogen,AGT)基因多态性与原发性高血压(essential hypertension,EH)的关系。方法采用病例-对照研究。用MS-PCR和PCR-SSCP方法检测深圳地区EH 97...目的调查缓激肽β2受体(β2-bradyk in in receptor,β2-BKR)基因和血管紧张素原(angiotensinogen,AGT)基因多态性与原发性高血压(essential hypertension,EH)的关系。方法采用病例-对照研究。用MS-PCR和PCR-SSCP方法检测深圳地区EH 97例(EH组)和血压正常者87例(NT组)的β2-BKR基因-58T/C多态性和AGT基因M235T多态性。结果EH组β2-BKR CC基因型(0.36)和C等位基因频率(0.60)显著高于NT组(0.14,P=0.000;0.43,P=0.001)。EH组CC+MT(0.19)、TC+MM(0.18)基因型显著高于NT组(0.06,P=0.009;0.05,P=0.006)。β2-BKR CC基因型者EH的相对危险度增加(OR=1.913,95%CI:1.913-3.049,P=0.006)。EH组AGT基因型分布与NT组相比无显著性差异(P=0.091),但M等位基因频率(0.55)显著高于NT组(0.44,P=0.037)。结论β2-BKR-58T/C多态性与深圳地区人群的EH相关,CC基因型可能与EH危险增加有关,C等位基因可能与AGTM235T多态性存在基因-基因间的协同作用。展开更多
基金the Science Foundation of the Health Department of Hainan Province, China （No. 2005-65）.
文摘Objective To investigate the relationship of four single nucleotide polymorphism （SNP） haplotypes in the angiotensinogen （AGT） gene to the primary hypertension with or without cerebral infarction in the Li nationality of Hainan, China. Methods Total 300 subjects were allocated into three different groups： Groupl, 100 patients who have primary hypertension; Group 2, 100 patients who have primary hypertension with cerebral infarction; and control group, 100 healthy individuals. The genotypes of all subjects were determined by PCR-sequencing to analyze the four poly- morphisms at position - 152 （G-A）, -20 （A-C）, - 18 （C-T）, and -6 （A-G） in the promoter region of AGT. Results The frequen- cies ofCT genotype of AGT-18 and T allele in Group 1 （P = 0.003, P = 0.004） and Group 2 （P = 0.002, P = 0.002） were both significantly higher than in healthy controls. The frequency of G allele of AGT-6 was significantly higher in Group 2 than in the control group （P = 0.016）, while there is no significant difference between Group 1 and the control. Haplotype analysis revealed that H6 haplotype frequency which included -20C and -6G was significantly increased in Group 2 （P = 0.003） compared with the control group, while H5 haplotype frequency which included -20C and -18T was signifi- cantly increased in Group 1 （P = 0.006） versus the control. Conclusion The -20 （A-C） and - 18 （C-T） of the AGT may play an important role in pathogenesis of primary hypertension; and -20 （A-C）, -18 （C-T）, and -6 （A-G） may be the genetic risk factors for the onset of primary hypertension with cerebral infarction in the Li nationality of Halnan, China.
文摘Objective Coronary heart disease （CHD） is a multifactorial disease. This meta-analysis was performed to evaluate the relationship between angiotensinogen gene polymorphisms and CHD in the Chinese population. Methods We searched literature in pubmed （1990- 2010.8） and CNKI （1990-2010.8） for all the relevant studies on 2 angiotensinogen polymorphisms （M235T and T174M） and risk of CHD. The meta-analysis software Stata 10.0 was used for ascertaining heterogeneity among individual studies and for combining all the studies. Furthermore,Egger＇s test and sensitivity analysis were performed to insure authenticity of the outcome.Results Ten associations studies on 2 angiotensinogen polymorphisms （M235T and T174M） were included in this meta-analysis. In a combined analysis, the summary per-allele odds ratio for CHD of the M235T polymorphism was 1.374 （95% confidence interval, 1.019 to 1.852） and T174M polymorphism was 4.089 （95% confidence interval, 1.697 to 9.851）. Conclusions The M235T polymorphism had weak but statistically significant association with CHD while the T174M polymorphism was more strongly associated with a CHD risk in Chinese population, but further confirmation studies are needed
文摘目的调查缓激肽β2受体(β2-bradyk in in receptor,β2-BKR)基因和血管紧张素原(angiotensinogen,AGT)基因多态性与原发性高血压(essential hypertension,EH)的关系。方法采用病例-对照研究。用MS-PCR和PCR-SSCP方法检测深圳地区EH 97例(EH组)和血压正常者87例(NT组)的β2-BKR基因-58T/C多态性和AGT基因M235T多态性。结果EH组β2-BKR CC基因型(0.36)和C等位基因频率(0.60)显著高于NT组(0.14,P=0.000;0.43,P=0.001)。EH组CC+MT(0.19)、TC+MM(0.18)基因型显著高于NT组(0.06,P=0.009;0.05,P=0.006)。β2-BKR CC基因型者EH的相对危险度增加(OR=1.913,95%CI:1.913-3.049,P=0.006)。EH组AGT基因型分布与NT组相比无显著性差异(P=0.091),但M等位基因频率(0.55)显著高于NT组(0.44,P=0.037)。结论β2-BKR-58T/C多态性与深圳地区人群的EH相关,CC基因型可能与EH危险增加有关,C等位基因可能与AGTM235T多态性存在基因-基因间的协同作用。
