Abstract
Myasthenia gravis (MG) is a disease characterized by muscle weakness due to autoimmunity against the nicotinic acetylcholine receptor (nAChR) at the neuromuscular junction. The disease is relatively rare with a prevalence rate of approximately 80 persons per million and an incidence rate of approximately 5 persons per million in Caucasian populations [1]. MG has a complex pattern of inheritance, and several genetic and environmental factors are important in conferring susceptibility to the disease. Genes play an important role in MG; the autoimmune disease is familial in 4–7% of the cases [2] and the concordance rate among monozygotic twins is approximately 40% [3]. No concordance has been observed in dizygotic twins, and the large discrepancy in concordance between monozygotic and dizygotic twins suggests that there are multiple genes that confer susceptibility to MG. Several genes have indeed been found to confer susceptibility to MG, which therefore could be defined as a polygenic disease. This review will focus on reports published in the last years that have contributed to our understanding of the associations between MG and genes in the human leukocyte antigen (HLA) complex.
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Hjelmström, P., Sanjeevi, C.B. (2000). Molecular Mechanisms of MHC Associations with Myasthenia Gravis. In: Christadoss, P. (eds) Myasthenia Gravis. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4060-7_9
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DOI: https://doi.org/10.1007/978-94-011-4060-7_9
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