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No evidence for hyperhomocysteinemia or increased prevalence of genetic polymorphisms in the homocysteine pathway in patients with moderate juvenile idiopathic arthritis

OBJECTIVE: Elevated plasma total homocysteine (tHcy) concentrations are associated with premature cardiovascular disease. We assessed tHcy, folate, vitamin B12 (Vit B12), vitamin B6 (Vit B6), and genetic polymorphisms potentially enhancing tHcy in patients with juvenile idiopathic arthritis (JIA) an...

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Bibliographic Details
Published in:Journal of rheumatology 2005-01, Vol.32 (1), p.170-174
Main Authors: Martina Huemer, Christian Huemer, Hanno Ulmer, Julia Crone, Manuela Födinger, Jutta Falger, Michaela Sailer-Höck
Format: Article
Language:English
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Summary:OBJECTIVE: Elevated plasma total homocysteine (tHcy) concentrations are associated with premature cardiovascular disease. We assessed tHcy, folate, vitamin B12 (Vit B12), vitamin B6 (Vit B6), and genetic polymorphisms potentially enhancing tHcy in patients with juvenile idiopathic arthritis (JIA) and healthy controls. METHODS: Open study of 56 consecutive patients with JIA and 62 controls. RESULTS: tHcy concentrations were normal in JIA patients (mean 6.5 +/- 2 micromol/l) and controls (mean 7.5 +/- 2.2 micromol/l). Folate concentrations were significantly higher in JIA patients (40.2 +/- 67.9 ng/ml) compared to controls (13.6 +/- 8.2 ng/ml). The prevalence of genetic polymorphisms coding for key enzymes in the homocysteine pathway did not differ between patients and controls. Erythrocyte sedimentation rate (ESR) showed significant inverse correlations with circulating Vit B6 and tHcy concentrations. CONCLUSION: No evidence for hyperhomocysteinemia or evidence for a specific genetic predisposition for hyperhomocysteinemia was present in patients with JIA. Elevated ESR is not associated with hyperhomocysteinemia.
ISSN:0315-162X
1499-2752