First Report of Diabetes Phenotype due to a Loss-of-Function ABCC8 Mutation Previously Known to Cause Congenital Hyperinsulinism. (11th April 2019)

• Record Type: Journal Article
• Authors: Koufakis, Theocharis; Sertedaki, Amalia; Tatsi, Elizabeth-Barbara; Trakatelli, Christina-Maria; Karras, Spyridon N.; Manthou, Eleni; Kanaka-Gantenbein, Christina; Kotsa, Kalliopi
• Other Names: Cotter Philip D. Academic Editor.
• Is Part Of: Case reports in genetics. Volume 2019(2019)
• Publication Date: 2019-04-11
• Subjects: Genetics -- Periodicals; Genetics -- Case studies -- Periodicals; Genetics; Genetic Phenomena; Genetics; Periodicals; Case studies; Periodicals; Case Reports; Fulltext; Internet Resources; Periodicals; 576.5
• DOI: 10.1155/2019/3654618
• Languages: English
• ISSNs: 2090-6544

Abstract

Abstract : Monogenic Diabetes is relatively rare, representing only 1-2% of total diabetes cases; nevertheless, it is often misdiagnosed primarily as type 1 diabetes, leading to unnecessary insulin therapy and delayed recognition of affected family members. In the present article, we describe a case of a young, male patient who presented with hyperglycemia in the absence of ketosis and following genetic testing; he proved to harbor the loss-of-function p.Arg1353His (c.4058G>A) mutation in the ABCC8 gene, inherited from his mother. This mutation has been previously described in patients with Congenital Hyperinsulinism. Furthermore, different mutations in the ABCC8 gene have been linked with MODY 12, type 2, and gestational diabetes; however, to the best of our knowledge, this is the first report that associates this specific mutation with diabetes phenotype. ABCC8 -related diabetes is characterized by remarkable heterogeneity in terms of clinical presentation and therapeutic approach. Early diagnosis and individualized treatment are essential to achieving metabolic targets and avoiding long-term diabetes complications.