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Updated: Aug 9, 2026

Measurement of Heme Synthesis Levels in Mammalian Cells
Published on: July 9, 2015
[Homocysteine--a routine biochemical parameter in cardiovascular diseases?]
Insights
High blood homocysteine (hyperhomocysteinemia) is a major risk factor for vascular disease and blood clots. Supplementing with B-vitamins, especially folic acid, safely and affordably lowers homocysteine levels.
Area of Science:
- Cardiovascular Science
- Metabolic Disorders
- Vascular Biology
Context:
- Hyperhomocysteinemia, an elevated total homocysteine (tHcy) level in the blood, is a widespread condition.
- It represents a significant risk factor for atherosclerotic vascular disease affecting coronary, cerebral, and peripheral arteries.
- This condition also increases the risk of both arterial and venous thromboembolism.
Purpose:
- To highlight the prevalence and risks associated with hyperhomocysteinemia.
- To emphasize the independent and potentially synergistic effect of elevated tHcy with conventional cardiovascular risk factors.
- To present B-vitamin supplementation, particularly folic acid, as an effective intervention.
Summary:
- Elevated total homocysteine (tHcy) is a prevalent risk factor for atherosclerotic vascular disease and thromboembolism.
- The risk associated with hyperhomocysteinemia is graded, lacks a threshold, and may potentiate other cardiovascular risk factors.
- Hyperhomocysteinemia is identified as a strong predictor of cardiovascular mortality.
Impact:
- B-vitamin supplementation, specifically folic acid, offers an efficient, safe, and cost-effective strategy to reduce elevated tHcy levels.
- This intervention has the potential to mitigate cardiovascular risk associated with hyperhomocysteinemia.
- Reducing tHcy through supplementation may lead to decreased cardiovascular mortality.
Abstract:
An elevated level of total homocysteine (tHcy) in blood-hyperhomocysteinemia, is prevalent and strong risk factor for atherosclerotic vascular disease in the coronary, cerebral and peripheral vessels and for thromboembolism (arterial and venous). Elevated total homocysteine confers a graded risk with no threshold, is independent of but may enhance the effect of conventional risk factors. Hyperhomocysteinemia seems to be a particularly strong predictor of cardiovaskular mortality. Supplementation with B-vitamins, in particular with folic acid, is an efficient, safe and inexpensive means to reduce an elevated total homocysteine level.
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