TNFRSF11A RANK Gen Mutasyonu Saptanan BirAilede Prenatal Tanı Bir Olgu Sunumu

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Autosomal recessive osteoporosis (ARO) is a severe disease causing death usually at infancy or childhood. RANKL coded by TNFSF11 gene and RANK coded by TNFRSF11A gene are important proteins for osteoclast maturation and it is indicated that mutation on these genes plays an important role for ARO development. It is reported in this article that c.508 A→G homozygote mutation (pArg170Gly) is observed in TNFRSF11A gene of 2 children of consanguineous couple. Mutation analysis performed on CVS material during the next pregnancy revealed heterozygous mutation in the fetus. The pregnancy was continued to term and a healthy boy was delivered. Prenatal mutation analysis is important for diseases with known mutations to relieve parental anxiety and provide genetic counselling for the family.