The purpose of this study is to evaluate whether low dose complex B-vitamins (folic acid,vitamin B6 and vitamin B12) can lower the risk of developing hyperhomocysteinemia in an apparently healthy population with low folate/B12 and high Hcy status.
Hyperhomocysteinemia has been well known as an independent risk factor for CVD. Numerous studies have demonstrated that certain kinds of vitamin B(folic acid,vitamin B6 and vitamin B12)can reduce Hcy level and may prevent CVD. However, the majority of those studies has been conducted always used high dose vitamin in patient or high risk population. There is thus absence of data that the effectiveness of low dose complex B-vitamins on the apparently Chinese elderly population with relative sub-nutritional status. Our study is just focus on the aforementioned aspect.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
390
The complex B vitamins supplement has been made as capsule and packaging 31 capsules in 1 bottle with a pre-determined code number on its cover. The main content contains either vitamin C 50mg alone or combination with folate 0.4 mg, vitamin B6 2mg, vitamin B12 10μg and vitamin C 50 mg. Two kinds of the supplements could not be discriminated by appearance, smell, taste, size and package.volunteers in either arms are required to take 1 capsule per day and last for 48 weeks.
The maternal and Children health care hospital
Yuanshi County of Shijiazhuang, Hebei, China
plasma homocysteine level, plasma folate acid and red blood cell folate acid, Framingham risk score
Time frame: 6,12 and 18 months
systolic blood pressure, diastolic blood pressure and hemoglobin
Time frame: 6 and 12 months
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