期刊
DIGESTIVE DISEASES AND SCIENCES
卷 55, 期 2, 页码 351-358出版社
SPRINGER
DOI: 10.1007/s10620-009-0761-0
关键词
Atrophic gastritis; Cardiovascular disease; Cohort; Cystatin C; Dementia; Folate; Gastritis; Homocysteine; H. pylori; Pepsinogen; Vitamin B12
资金
- Swedish Cancer Society
- Research Council in the South East of Sweden (FORSS)
Background Homocysteine levels in circulation are determined by several factors and hyperhomocysteinemia is reportedly associated with cardiovascular diseases and dementia. The aim of this study is to determine the relation of chronic gastritis and other conditions to homocysteine levels and their relation to incident cardiovascular diseases and dementia. Methods An adult population-based cohort (N = 488) was screened for H. pylori infection, gastro-duodenitis ( endoscopic biopsies), disease history, and lifestyle factors. Blood samples were analyzed for pepsinogen I and II ( gastric function), vitamin B12, folate, homocysteine, and cystatin C ( renal function). The methylenetetrahydrofolate reductase C677T polymorphism reportedly associated with hyperhomocysteinemia was analyzed by pyrosequencing. Incident cardiovascular diseases and dementia were monitored during a median follow-up interval of 10 years. Results At baseline, there was a positive relation of S-homocysteine to male gender, age, S-cystatin C, methylenetetrahydrofolate reductase 677TT genotype and atrophic gastritis. During follow-up, cardiovascular diseases occurred in 101/438 and dementia in 25/488 participants, respectively. Logistic regression analysis ( adjusting for gender, age at baseline, follow-up interval, BMI, smoking, alcohol consumption, NSAID use, P-cholesterol, and P-triglycerides) showed an association of S-homocysteine higher than 14.5 mu mol/l to cardiovascular diseases (OR 2.05 [95% c.i. 1.14-3.70]), but not to dementia overall. Conclusions Gender, age, vitamin B12, folate, renal function, atrophic gastritis and the methylenetetrahydrofolate 677TT genotype were significant determinants of homocysteine levels, which were positively related to incident cardiovascular diseases.
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