Hyperhomocysteinaemia in HIV-infected patients: Determinants of variability and correlations with predictors of cardiovascular disease

Giovanni Guaraldi, P. Ventura, E. Garlassi, G. Orlando, N. Squillace, G. Nardini, C. Stentarelli, S. Zona, S. Marchini, V. Moriondo, P. Tebas

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: We evaluated hyperhomocysteinaemia (HHcy) in a cohort of HIV-infected patients in order to assess its relation to cardiovascular risk (CVR) and identify determinants of HHcy variability. Methods: Cross-sectional observational study. HIV-infected patients on stable highly active antiretroviral therapy (ART) were evaluated for the presence of the metabolic syndrome, lipodystrophy and traditional CVR factors. Plasma homocysteine levels were measured using high-performance liquid chromatography. Results: Five hundred and sixty-seven patients (38% female) with a median age of 44 years were included in the study. Homocysteine (Hcy) was significantly higher in patients with the metabolic syndrome and lipodystrophy. No significant association was found between Hcy levels and the use of ART. However, Hcy was associated with higher blood pressure, waist circumference and waist-to-hip ratio, total lean body mass, visceral adipose tissue (VAT), VAT/total adipose tissue, homeostasis model assessment of insulin resistance (HOMA-IR), triglycerides, high-density lipoprotein cholesterol, apolipoprotein A1, B, and creatinine. All 10-year CVR assessment scores were significantly associated with Hcy. In a multivariate regression model, systolic blood pressure, vitamin supplementation and HOMA-IR were significantly and independently related to Hcy. Conclusions: Hcy is elevated in HIV-infected patients and is significantly associated with increased CVR. Measurement of Hcy might be useful in identifying particularly high-risk populations at whom therapeutic interventions could be targeted.

Original languageEnglish
Pages (from-to)28-34
Number of pages7
JournalHIV Medicine
Volume10
Issue number1
DOIs
Publication statusPublished - 2009

Keywords

  • Cardiovascular disease
  • Homocysteine
  • Metabolic syndrome

ASJC Scopus subject areas

  • Infectious Diseases
  • Pharmacology (medical)
  • Health Policy

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