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Clinical and Genetic Analysis of A Father-Son Duo with Monomelic Amyotrophy: Case Report
Shiffali Khurana1,2, Abhishek Vats1, Mandaville Gourie-Devi3,4
1Department of Biotechnology and Research, Sir Ganga Ram Hospital, Delhi, India.
Abstract:
Monomelic Amyotrophy (MMA) is a rare neurological disorder restricted to one upper limb, predominantly affecting young males with an unknown aetiopathogenesis. We report a familial case of father-son duo affected by MMA. Whole exome sequencing identified genetic variations in SLIT1, RYR3 and ARPP21 involved in axon guidance, calcium homeostasis and regulation of calmodulin signaling respectively. This is the first attempt to define genetic modifiers associated with MMA from India and advocates to extend genetic screening to a larger cohort. Deciphering the functional consequences of variations in these genes will be crucial for unravelling the pathogenesis of MMA.
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