Total homocysteine concentration and associated cardiovascular and renal implications in adults

Area of Science:

• Biochemistry
• Cardiology
• Nephrology

Background:

• Hyperhomocysteinemia, elevated homocysteine levels, is a known risk factor for cardiovascular disease (CVD).
• This association is particularly pronounced in individuals with renal disease.
• Declining vitamin B6, B12, folate, and riboflavin status often accompanies hyperhomocysteinemia.

Purpose of the Study:

• To review the evidence linking vitamin supplementation to homocysteine status.
• To provide recommendations for managing vitamin intake in hyperhomocysteinemic patients, including those with kidney disease.

Main Methods:

• Literature review of epidemiological and cohort studies.
• Analysis of clinical trials investigating vitamin supplementation for CVD risk reduction.
• Synthesis of evidence regarding vitamin-homocysteine interactions.

Main Results:

• Consistent evidence confirms the link between elevated homocysteine and increased CVD risk.
• Vitamin supplementation trials have explored its role in managing homocysteine levels.
• Renal disease exacerbates the relationship between homocysteine and CVD risk.

Conclusions:

• Vitamin supplementation is a potential strategy for managing hyperhomocysteinemia.
• Recommendations for vitamin intake are crucial for patients with elevated homocysteine, especially those with renal impairment.
• Further research may refine optimal vitamin supplementation protocols for cardiovascular risk reduction.