GENETIC DIAGNOSTICS AND CLINICAL FEATURES OF WILSON’S DISEASE IN CHILDREN

Ivanna Haiboniuk, Marta Dats-Opoka, Halyna Makukh, Yaryna Boyko, Igor Kiselyk

Abstract


A disorder of copper metabolism at Wilson’s disease (WD), conditioned by a mutation of adenosine thriphospate P-type gene (ATP7B), results in irreversible changes in the liver and in the nervous system. Mortality is high at WD, but it is one of hereditary diseases, well subjected to the therapy. The disease is manifested in the early age, but its clinical course in children is symptomless that essentially complicates diagnostics. A single reliable method is genetic analysis for revealing mutations in ATP7B gene.

The aim of the work was to analyze clinical manifestations and course of Wilson’s disease cases, genetically verified in children by detecting mutations of ATP7B gene.

The research group included children of 6-17 years old with different injury degrees of the hepatobiliary system. According to results of the molecular-genetic analysis, the most spread allele variant of ATP7B gene (H1069Q) in Europe was confirmed in 10 patients of child age, including 4 cases of homozygosity.

In 10 cases of the confirmed diagnosis of Wilson’s disease in child age in  100% (in all 10) of persons, a clinical manifestation was characterized by disorders from the hepatobiliary system, and only in 1 (10 %) – changes from the nervous system. At raising the level of transaminase in children, even at the normal bilirubin level and negative tests for viral hepatitis, it is recommended to carry out genetic testing for Wilson’s disease

Keywords


Wilson’s disease; hepatobiliary disorders; children; genetic testing; mutation of ATP7B gene

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DOI: http://dx.doi.org/10.21303/2504-5695.2020.001197

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