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Association of HLA-A in autoimmune myasthenia gravis with thymoma
Claire Vandiedonck1, Colette Raffoux, Bruno Eymard
1Inserm U and Université Paris Descartes, Institut Cochin, Department of Immunology, France.
Abstract:
We investigated an association of the HLA-A locus in 78 French Caucasian patients with autoimmune myasthenia gravis (MG) and thymic epithelial tumours. The largest effect was a protection associated with HLA-A02 in MG patients with a B2 type thymoma (OR=0.323, 95% CI: 0.113-0.756, P=0.00041). The frequency of HLA-A25 was also increased in the whole group of patients (OR=3.62, 95% CI: 1.62-7.08, P=0.0041). Our findings emphasise the interest of the histological classification in the genetic study of thymomas.
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