[DGUOK-related mitochondrial DNA depletion syndrome: a case report and literature review].
Zhongguo Dang Dai Er Ke Za Zhi
; 22(3): 274-279, 2020 Mar.
Article
em Zh
| MEDLINE
| ID: mdl-32204766
ABSTRACT
A boy, aged 4 months, had the major clinical manifestations of prolonged jaundice and hepatomegaly. Multiple biochemical tests revealed abnormal liver function along with elevated alpha-fetoprotein and lactate. Genetic analysis confirmed that the boy had the mutations of c.589C>T(p.Gln197Ter) and c.687G>C(p.Trp229Cys) in the DGUOK gene, both of which were novel mutations and were determined to be pathogenic and likely pathogenic respectively, by a variety of bioinformatics tools and the ACMG standard. Therefore, the boy was confirmed to have DGUOK-related mitochondrial DNA depletion syndrome. Literature review showed that onset of liver disease in infancy was the main clinical feature of this disease, and some children presented with nervous system manifestations. Abnormal laboratory results included abnormal liver function, increases in blood lactate, serum ferritin and alpha-fetoprotein, and hypoglycemia. Such children had marked heterogeneity of DGUOK gene mutations, with missense mutations as the most common type. This disease tended to have a poor prognosis, and 79.6% of the children died before the age of 3 years.
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Base de dados:
MEDLINE
Assunto principal:
Doenças Mitocondriais
Idioma:
Zh
Ano de publicação:
2020
Tipo de documento:
Article