Vitamin B-6 and colorectal cancer risk: a prospective population-based study using 3 distinct plasma markers of vitamin B-6 status
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منابع مشابه
Plasma folate, vitamin B-6, and vitamin B-12 and breast cancer risk in BRCA1- and BRCA2-mutation carriers: a prospective study.
BACKGROUND B vitamins [vitamins B-6, B-9 (folate), and B-12] play important roles in nucleotide biosynthesis and biological methylation reactions, aberrancies of which have all been implicated in carcinogenesis. In the general population, evidence has suggested that high circulating folate and folic acid (synthetic form of folate) supplement use may increase breast cancer risk, but the role of ...
متن کاملDietary folate, methionine, riboflavin, and vitamin B-6 and risk of sporadic colorectal cancer.
Adequate intake of folate, methionine, riboflavin, and vitamin B-6 may prevent aberrant DNA methylation and thereby protect against colorectal cancer (CRC). However, previous epidemiological studies investigating associations between dietary intakes of these nutrients and CRC have been inconsistent. We investigated the associations between intakes of folate, methionine, riboflavin, and vitamin ...
متن کاملHyperhomocysteinemia in chronic alcoholism: correlation with folate, vitamin B-12, and vitamin B-6 status.
Serum homocysteine concentrations have been shown to be a sensitive functional indicator of intracellular folate, vitamin B-12, and vitamin B-6 status. Chronic alcoholism is known to interfere with one-carbon metabolism, for which the above vitamins serve as coenzymes. In the present study, these vitamins were assessed in 32 chronic alcoholics and 31 healthy volunteers by measuring blood vitami...
متن کاملFolate, vitamin B(6), and vitamin B(12) intake and the risk of breast cancer among Mexican women.
BACKGROUND High intake of folate, vitamin B(6), and vitamin B(12) have been hypothesized to lower the risk for breast cancer. We conducted a population-based case-control study to evaluate the risk for breast cancer among Mexican women with relatively low vitamin intakes. METHODS We included 475 women (median age, 53 years; range, 23-87 years) diagnosed with incident breast cancer through six...
متن کاملRole of vitamin B 6 biosynthetic rate in the study of vitamin B 6 synthesis in Escherichia coli.
Nutritional auxotrophs of Escherichia coli synthesize vitamin B(6) compounds at a rate of 1 x 10(-10) to 2 x 10(-10) moles per hr per mg (dry weight) of cells when they are suspended in minimal medium lacking their required nutrients. A few auxotrophs have been found to stop or reduce vitamin B(6) synthesis during such an experiment. These include thiamineless, citrate synthaseless, and pyridox...
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ژورنال
عنوان ژورنال: The American Journal of Clinical Nutrition
سال: 2017
ISSN: 0002-9165,1938-3207
DOI: 10.3945/ajcn.116.139337