Referenced in: none

Automatically associated channels: Kir1.1 , Kir6.2

Title: Permanent neonatal diabetes caused by a novel mutation.

Authors: Vandana Jain, Sarah E Flanagan, Sian Ellard

Journal, date & volume: Indian Pediatr, 2012 Jun , 49, 486-8

PubMed link: http://www.ncbi.nlm.nih.gov/pubmed/22796691

Abstract
Most cases of permanent form of neonatal diabetes mellitus (PNDM) are due to dominant heterozygous gain of function (activating) mutations in either KCNJ11 or ABCC8 genes, that code for Kir 6.2 and SUR1 subunits, respectively of the pancreatic b cell KATP channel. We describe the interesting case of an infant with PNDM, in whom a compound heterozygous activating/ inactivating mutation was found with clinically unaffected parents, each carrying a heterozygous mutation in ABCC8, one predicting gain of function (neonatal diabetes) and the other a loss of function (hyperinsulinemia).