Molecular analysis of glycogen storage disease type Ia in Iranian Azeri Turks: identification of a novel mutation

Journal of genetics

AZIZ KHORRAMI²  MANSOORI DERAKHSHAN SIMA1 2²  SHEKARI KHANIANI MAHMOUD²  MANDANA RAFEEY²  ROBABEH GHERGHEREHCHI¹ 

[1] Department of Pediatric, Tabriz University of Medical Sciences, Tabriz 5166/15731, Iran$$;Liver and Gastrointestinal Disease Research Center School of Medicine Tabriz 5166/15731, Iran$$

关键词: G6PC gene;    Azeri Turkish;    glycogen storage disease type Ia;    novel mutation;    Azeri Turkish sequencing.;   

DOI  :  

学科分类：生物科学（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Glycogen storage diseases (GSDs) are caused by abnormalities in enzymes that are involved in the regulation of gluconeogenesis and glycogenolysis. GSD I, an autosomal recessive metabolic disorder, is the most common GSD and has four subtypes. Here, we examined GSD Ia caused by the defective glucose-6-phosphatase catalytic (G6PC) gene. We investigated the frequency of GSD Ia and clarified its molecular aspect in patients with the main clinical and biochemical characteristics of GSD, including 37 unrelated patients with a mean age of three years at the time of diagnosis. All patients belonged to the Azeri Turkish population. Hypoglycaemia and hypertriglyceridaemia were the most frequent laboratory findings. Mutations were detected by performing direct sequencing. Mutation analysis of the G6PC gene revealed that GSD Ia accounted for 11%in GSD patients with involvement of liver. Three patients were homozygous for R83C mutation. In addition, a novel stop mutation, Y85X, was identified in a patient with the typical features of GSD Ia.

【 授权许可】

Unknown