Low holo-transcobalamin levels are prevalent in vegetarians and is associated with coronary artery disease in Indian population.

Basak T, Garg G, Bhardwaj N, Tanwar VS, Seth S, Karthikeyan G, Sengupta S
Biomarkers. 2016 21 (5): 436-40

PMID: 26999557 · DOI:10.3109/1354750X.2016.1153718

Coronary artery disease (CAD) has been increasing alarmingly in India. We had earlier shown that vitamin B12 deficiency is associated with CAD in Indian population. However, only about a quarter of the total vitamin B12 is internalised in the cells by the proteins transcobalamin II. Vitamin B12-bound transcobalamin II (holotranscobalamin, holoTC) is thus referred to as biologically active B12. In this study, we ascertained the levels of holoTC in 501 CAD cases and 1253 healthy controls and for the first time show that holoTC levels are significantly lower (p = 2.57E-4) in CAD (26.81 pmol/l) cases as compared to controls (29.97 pmol/l).

MeSH Terms (9)

Asian Continental Ancestry Group Case-Control Studies Coronary Artery Disease Humans India Prevalence Transcobalamins Vegetarians Vitamin B 12

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