Significance of evaluating homocysteine levels as a risk factor in vascular diseases

Bhargava, S. and Parakh, R. (2002) Significance of evaluating homocysteine levels as a risk factor in vascular diseases. 9th APCCB and 28 th Annual Conference of ACBI, 89.

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Homocysteine (Hey) is a branch-point metabolite, the biologic fate of which is linked to vitamin B12, reduced folates and vitamin B6. It is a non-protein forming amino-acid whose metabolism is at the intersection of two metabolic pathways: remethylation and transsulfuration. Whether it is defective synthesis of N5methyltetrahydrofolate or defective Hey remethylation or, even, defective action of cystathionine-B-synthetase, the result is hyperhomocysteinemia. This causes oxidative and other damage to blood vessels, thus affecting various organ systems of the body. As part of our ongoing research on cardiovascular risk factors, we have studied the Hey levels in the plasma of normal controls and those suffering from vascular diseases. It was observed that Hey is significantly higher in patients of vascular diseases (21.01 1.64, mean SEM), as compared to normal controls (11.58 0.27). This significance was more pronounced in cases of venous thrombosis (24.98 2.81) as opposed to cases of arterial block (16.55 1.73). This signifies that Hey estimation would be beneficial in obtaining a differential diagnosis in addition to being a modifiable vascular risk factor.

EPrint Type:Article
Uncontrolled Keywords:Homocysteine, Vascular Diseases, Risk Factor, Branch-point metabolite, Vitamin B12, Remethylation, Differential Diagnosis
Subjects:Biochemical Phenomena, Metabolism, and Nutrition > Metabolism
Organic Chemicals > Sulfur Compounds
Growth Substances, Pigments, and Vitamins > Vitamins
Cardiovascular Diseases > Vascular Diseases
Amino Acids, Peptides, and Proteins > Amino Acids > Amino Acids, Sulfur
-Institutional Repositories > Sir Ganga Ram Hospital, New Delhi
Health Care Quality, Access, and Evaluation > Quality of Health Care > Health Care Evaluation Mechanisms > Statistics > Probability > Risk > Risk Factors
ID Code:2362
Deposited By:Sir Ganga Ram Hospital
Deposited On:04 October 2007

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