Department of Endocrinology, Osmania University, Telangana, India
Case Report
HNF1A Gene Mutation (c.811del, p.Arg271Glyfs) Causing Maturity Onset of Diabetes of the Young 3: A Case Study of an Indian Patient
Author(s): Neelima Chitturi*, Satish Sunkara, Sandhya Kiran Pemmasani and Anuradha Acharya
Background: Maturity-Onset Diabetes of the Young (MODY), a rare class of diabetes that develops in early
adulthood, is thought to have a prevalence of less than 5%. The best practice for the management of the MODY is to
identify its type, through genetic testing. This paper presents a case study to identify the genetic etiology of diabetes.
Case history: The presented case was diagnosed with diabetes at the age of 17 with a strong family history of
diabetes. The individual was on insulin (12 units) with high random blood sugar levels (200 mg/dL to 300 mg/
dL) and HbA1c (9.2%). Whole exome sequencing has shown the presence of a known likely pathogenic variant in
the HNF1A gene (chr12: 121432062, c.811del, p.Arg271Glyfs), known to cause MODY3. Other unaffected family
members were screened for the variant using Sanger s.. View more»