Plasma Homocysteine and Cardiovascular Organ Damage in a Population with a High Prevalence of Risk Factors

Michaela Kozakova1, Carmela Morizzo2, Giuseppe Penno1

  • 1Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.

Insights

Plasma homocysteine (Hcy) is linked to left ventricular hypertrophy (LVH), a condition associated with cardiovascular events (CVEs). This suggests LVH may be a key link between Hcy and cardiovascular risk.

Area of Science:

  • Cardiovascular Medicine
  • Biochemistry
  • Clinical Research

Background:

  • Plasma homocysteine (Hcy) is a potential risk factor for cardiovascular disease (CVD).
  • The direct impact of Hcy on the cardiovascular system and its mediation by established risk factors remain unclear.
  • This study investigates the relationship between Hcy and cardiovascular organ damage.

Purpose of the Study:

  • To evaluate cross-sectional relationships between plasma Hcy and indices of cardiovascular organ damage.
  • To determine the association between these indices and a history of cardiovascular events (CVEs).

Main Methods:

  • 269 patients with high prevalence of diabetes, dyslipidemia, and hypertension were studied.
  • Measurements included carotid intima-media thickness, ankle-brachial index (ABI), reactive hyperemic index, carotid-femoral pulse wave velocity (cfPWV), left ventricular (LV) mass, and cardiac index.
  • Plasma Hcy levels were analyzed in relation to these cardiovascular parameters and history of CVEs.

Main Results:

  • Plasma Hcy levels were independently associated with LV mass and ABI.
  • Significantly higher Hcy levels were observed in patients with LV hypertrophy (LVH) and ABI < 0.90.
  • LVH was the only marker of CV organ damage associated with a history of CVEs.

Conclusions:

  • Hcy is independently associated with LV mass.
  • LVH is independently associated with a history of CVEs.
  • LVH may serve as a pathophysiologic link between Hcy and cardiovascular risk.
Abstract

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