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[Hyperhomocysteinemia and cardiovascular risk in diabetes mellitus]

Giuseppina T Russo1, Domenico Cucinotta

  • 1Dipartimento di Medicina Interna, Università degli Studi, Messina. russogiusi@tin.it

Insights

Mild hyperhomocysteinemia is an independent risk factor for cardiovascular disease in diabetic patients, not directly linked to diabetes itself. Fasting homocysteine levels are influenced by kidney function (glomerular filtration rate).

Area of Science:

  • Endocrinology
  • Nephrology
  • Cardiology

Context:

  • Cardiovascular disease (CVD) is a leading cause of mortality in individuals with diabetes.
  • Hyperglycemia alone does not fully account for the elevated CVD risk in diabetics.
  • Mild hyperhomocysteinemia is recognized as an independent risk factor for atherosclerosis in the general population.

Purpose:

  • To investigate the association between hyperhomocysteinemia and cardiovascular disease risk in diabetic patients.
  • To clarify the relationship between homocysteine levels, diabetes, and kidney function.

Summary:

  • Fasting homocysteine plasma levels in diabetic subjects are primarily determined by glomerular filtration rate (GFR), not diabetes itself.
  • While controversial for diabetic retinopathy and neuropathy, hyperhomocysteinemia is consistently identified as an independent risk factor for cardiovascular disease in diabetes.

Impact:

  • Highlights hyperhomocysteinemia as a critical, independent cardiovascular risk factor in diabetic populations.
  • Suggests that managing kidney function may influence homocysteine levels in diabetics.
  • Informs clinical practice regarding cardiovascular risk assessment and management in diabetic patients.

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