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Moncef Feki, Habib Houman, Mehdi Ghannouchi, Monia Smiti-Khanfir, Kamel Hamzaoui, Leila El Matri, Abderraouf Mebazaa, Neziha Kaabachi
Hyperhomocysteinaemia is associated with uveitis but not with deep venous thrombosis in Behçet's disease
Keywords: Deep venous thrombosis, endothelial dysfunction, homocysteine, oxidant stress, retinal vasculitis, uveitis
Plasma homocysteine was assessed in Behçet's disease (BD) patients in order to determine the prevalence of hyperhomocysteinaemia in BD and to test its association with clinical manifestations of the disease. The study included 59 patients with BD and 118 age- and sex-matched healthy subjects. Plasma homocysteine, vitamin B12 and folate were assessed by automated immunoassay methods. Hyperhomo-cysteinaemia was defined as plasma homocysteine >15 ?mol/l. Plasma homocysteine concentrations and the prevalence of hyperhomocysteinaemia were significantly higher in BD patients than in controls [median (5th–95th percentile), 11.3 (6.6–28.1) vs. 10.6 (6.6–17.1) ?mol/l, and 25.4% vs. 9.3%, respectively]. In BD patients, hyperhomocysteinaemia was related to male gender, disease severity and uveitis [odds ratio (OR), 5.32; 95% confidence interval (CI), 1.43–21.61; p=0.008], but not to age, smoking, disease activity, deep venous thrombosis, arthritis or neurological involvement. The association between uveitis and hyperhomocysteinaemia persisted (multi-adjusted OR, 7.46; 95% CI, 1.03–54.3; p=0.05) after adjusting for gender, age, disease activity and duration, smoking, deep venous thrombosis, and serum concentrations of creatinine, vitamin B12 and folate. Plasma homocysteine should be measured in patients with BD, and the effect of B-vitamin supplementation should be tested in those with hyperhomo-cysteinaemia.
Clinical Chemical Laboratory Medicine, Walter de Gruyter
Print ISSN: 1434-6621
Volume: 42, 12/2004
Pages: 1417 - 1423