Neonatal hyperinsulinism with an ABCC8 mutation:A case report  

作　　者：Meng-Tong Liu Hui-Xia Yang 

机构地区：[1]Department of Gynecology and Obstetrics,Peking University First Hospital,Beijing 100034,China

出　　处：《World Journal of Clinical Cases》2023年第10期2254-2259,共6页世界临床病例杂志

摘　　要：BACKGROUND Neonatal hyperinsulinism can result from perinatal stress,genetic disorders,or syndromes,which can lead to persistent or intractable hypoglycemia in newborns.Mutations in the ABCC8 gene result in abnormal functioning of potassium channel proteins in pancreaticβ-cells,leading to an overproduction of insulin and congenital hyperinsulinemia.CASE SUMMARY We report a case of a high-birth-weight infant with postnatal hypoglycemia and hyperinsulinemia,whose mother had pregestational diabetes mellitus with poor glycemic control and whose sister had a similar history at birth.Whole-exome sequencing revealed a new mutation in the ABCC8 gene in exon 8(c.1257T>G),which also occurred in his sister and mother;thus,the patient was diagnosed with neonatal hyperinsulinism with an ABCC8 mutation.With oral diazoxide treatment,the child’s blood glucose returned to normal,and the pediatrician gradually discontinued treatment because of the child’s good growth and development.CONCLUSION We report a new mutation locus in the ABCC8 gene.This mutation locus warrants attention for genetic disorders and long-term prognoses of hypoglycemic children.

关 键 词：NEWBORN HYPOGLYCEMIA Congenital hyperinsulinism ABCC8 Hyperglycemia in pregnancy Case report 

分 类 号：R722.1[医药卫生—儿科]