Factors associated with hyperhomocysteinaemia in Mexican patients with rheumatoid arthritis

M A Lopez-Olivo1, L Gonzalez-Lopez, A Garcia-Gonzalez

  • 1Department of Internal Medicine, Rheumatology, Hospital General Regional 110, Instituto Mexicano del Seguro Social (IMSS), Guadalajara, Mexico.

Insights

Mexican rheumatoid arthritis patients have a high prevalence of hyperhomocysteinemia, a risk factor for atherosclerosis. Male gender and advanced radiological damage are key associated factors, necessitating earlier evaluation and treatment.

Area of Science:

  • Rheumatology
  • Cardiovascular Risk Factors
  • Clinical Biochemistry

Background:

  • Hyperhomocysteinemia is a known risk factor for atherosclerosis, particularly in rheumatoid arthritis (RA).
  • While Hispanics with RA have high coronary disease rates, data on homocysteine levels in Mexican RA patients is lacking.
  • This study addresses the prevalence and associated factors of elevated homocysteine in this specific population.

Purpose of the Study:

  • To determine the prevalence of hyperhomocysteinemia in Mexican patients with rheumatoid arthritis.
  • To identify clinical, functional, and laboratory characteristics associated with hyperhomocysteinemia in this cohort.

Main Methods:

  • A case-control study comparing 152 RA patients with 153 controls.
  • RA patients were assessed for disease activity, function, comorbidity, and radiological damage.
  • Laboratory tests included total serum homocysteine (tHcy), inflammatory markers (ESR, CRP), rheumatoid factor (RF), and lipid profile.

Main Results:

  • The prevalence of hyperhomocysteinemia (>15 micromol/L) was significantly higher in RA patients (20%) compared to controls (6%).
  • Elevated homocysteine levels in RA were associated with male gender, impaired global functional status, higher radiological damage, and elevated CRP.
  • Multivariate analysis identified male gender (OR=4.2) and severe radiological damage (OR=3.4) as independent risk factors for hyperhomocysteinemia.

Conclusions:

  • A high prevalence of hyperhomocysteinemia exists in Mexican patients with rheumatoid arthritis.
  • This finding highlights the need for increased attention to evaluating and managing this coronary risk factor in RA patients.
  • Earlier intervention strategies are crucial to mitigate cardiovascular risks associated with hyperhomocysteinemia in RA.
Abstract

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