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Hyperhomocysteinaemia is associated with osteoporosis in patients with Crohn's disease.

Abstract : BACKGROUND: A high prevalence of osteoporosis is observed in Crohn's disease. Recent data have shown that homocysteinaemia is an important risk factor in low-bone mineralization and fracture. AIM: To look for an association between homocysteinaemia and low-bone mineralization in Crohn's disease patients. PATIENTS AND METHODS: Ninety-two consecutive patients (sex ratio M/F 0.87; mean age: 36.6 +/- 13.2 years) were recruited between 2003 and 2005. Bone densitometry was performed on inclusion. The following parameters were analysed: age, sex, Crohn's Disease Activity Index, duration and extent of Crohn's disease, smoking status, corticosteroid treatment, immunosuppressive drugs, plasma homocysteine, folate and vitamin B12 concentration. RESULTS: The prevalence of a high homocysteine level (>15 micromol/L) was 60%. Osteoporosis and low-bone mineralization observed in 26 (28%), and 60 (65%) patients, respectively. On a multivariate analysis, associated factors for osteoporosis and low-bone mineralization were respectively: hyperhomocysteinaemia (OR: 61.4; CI: 95: 23-250; P < 0.001), and ileal Crohn's disease [OR: 13.8; CI: 95: 2.5-150; P = 0.036] for osteoporosis and hyperhomocysteinaemia [OR: 63.7; CI: 95: 8.5-250; P < 0.001] and disease duration of at least 5 years [OR: 11.4; CI: 95: 1.31-99; P = 0.039] for low-bone mineralization. Results were similar whichever site osteoporosis was detected. CONCLUSION: Hyperhomocysteinaemia was observed in 60% of our Crohn's disease patients and was strongly associated with low-bone mineralization and osteoporosis (OR: 61.4).
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https://www.hal.inserm.fr/inserm-00388037
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Submitted on : Monday, February 13, 2012 - 7:02:32 PM
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Xavier Roblin, Jean-Marc Phelip, Maud Genevois, Véronique Ducros, Bruno Bonaz. Hyperhomocysteinaemia is associated with osteoporosis in patients with Crohn's disease.. Alimentary Pharmacology and Therapeutics, Wiley, 2007, 25 (7), pp.797-804. ⟨10.1111/j.1365-2036.2007.03260.x⟩. ⟨inserm-00388037⟩

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