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Ann Pediatr Endocrinol Metab > Volume 7(1); 2002 > Article
Genetic Analysis in a Case of Transient Neonatal Diabetes Mellitus with Congenital Adrenal Hyperplasia.
Hye Jin Kwon, Jin A Park, Sang Lack Lee, Heung Sik Kim, Dong Seok Jeon, Dong Kyu Jin, Pyoung Han Hwang
A case of transient neonatal diabetes mellitus combined with congenital adrenal hyperplasia(CAH) is described. A female infant was born by cesarean delivery due to fetal distress, she had sunken eyeball and anterior fontanelle, large protruded tongue and thin subcutaneous tissues. She had large clitoris and progressive pigmentation on whole body was observed since 10th day of birth. Hyperglycemia and glycosuria was noted at 3rd day of birth. Level of insulin and C-peptide was 3.0 mU/L and 0.35 ng/mL respectively. Serum ACTH was 870.4 pg/mL and 17-hydroxyprogesterone was increased to 20,000 ng/dL. Serum Na was 124 mEq/L, K 5.6 mEq/L. Abdominal MRI showed no abnormality. Chromosomal study showed 46,XX. Genetic analysis with polymorphic DNA markers for chromosome 6 showed paternal uniparental isodisomy at D6S276, D6S1704 and DNA analysis of CYP 21 gene showed mutation at P435S. She required insulin therapy for 8 months after birth. Hydrocortisone and florinef was needed for the control of CAH.
Keywords: Transient neonatal diabetes mellitus;Congenital adrenal hyperplasia;Paternal uniparental isodisomy;CYP 21 gene mutation


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