ARTÍCULOS MÉDICOS

General

Efecto de la terapia factor-alfa antitumoral en la enfermedad de Crohn. (Inglés)

"Efecto de la terapia factor-alfa de necrosis antitumoral en la renovación del hueso en pacientes con enfermedad de Crohn activa: estudio propectivo."

Ryan BM, Russel MG, Schurgers L, Wichers M, Sijbrandij J, Stockbrugger RW, Schoon E.

Department of Gastroenterology, Manchester Royal Infirmary, Manchester, UK. Barbara.Ryan@amnch.ie

BACKGROUND AND AIMS:
Patients with Crohn's disease are at increased risk of osteoporosis. Disease activity and circulating proinflammatory cytokines are thought to play a role in this process. Infliximab, a chimaeric antitumour necrosis factor-alpha antibody is effective in the treatment of Crohn's disease. The aim of this study was to investigate the impact of treatment with infliximab on bone turnover in Crohn's disease patients.

METHODS:
This was a prospective trial. Twenty-four patients with active Crohn's disease were treated with infliximab (5 mg/kg). Bone markers were assayed pre- and post-treatment. Bone formation was measured using serum bone-specific alkaline phosphatase and total osteocalcin and bone resorption using serum N-telopeptide cross-linked type 1 collagen.

RESULTS:
Infliximab therapy caused a significant increase in both markers of bone formation in patients with active Crohn's disease. No significant change in the bone resorption marker serum N-telopeptide cross-linked type 1 was found.

CONCLUSION:
Infliximab therapy had a significant beneficial effect on bone metabolism in patients with active Crohn's disease. These findings further support the theory that active ongoing inflammation and high levels of circulating cytokines play a pivotal role in the pathogenesis of bone loss in patients with Crohn's disease.

Aliment Pharmacol Ther. 2004 Oct 15;20(8):851-7.

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