Identification of a novel mutation in the PHKA2 gene in a child with liver cirrhosis
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Zahra Beyzaei
Abstract
Objectives
Glycogen storage diseases (GSDs) are heterogeneous disorders caused by various enzyme deficiencies. GSD type IX α2, the most common subtype of GSD IX, is due to a deficiency of hepatic phosphorylase kinase. Herein we will report a novel mutation in this disease with an unusual presentation.
Case presentation
we describe a 3-year-old boy who suffered from hepatomegaly, fatty liver disease, and liver cirrhosis. The cause of cirrhosis at a young age was unknown based on the laboratory data and liver biopsy, so we performed a targeted-gene sequencing (TGS) covering 450 genes involved in inborn metabolic diseases consisting of glycogen storage disorders genes with hepatic involvement. He was found out to have a rare novel pathogenic variant in the PHKA2 gene.
Conclusions
This novel variant c.2226+2T > C expands the mutational spectrum of the PHKA2 gene. Also, severe liver damage (cirrhosis) in patients with GSD- IX α2 has rarely been reported, which needs further discussion. We hypothesize that unidentified PHKA2 variants may be a rare cause of childhood liver cirrhosis.
Funding source: National Institute for Medical Research Development
Award Identifier / Grant number: 976961
Award Identifier / Grant number: 1396-01-106-15748
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Research funding: This work was supported by National Institute for Medical Research Development, (Grant-number 976961). Shiraz Transplant Research Center, Shiraz University of Medical Sciences, (Grant-number 1396-01-106-15748).
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Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: Authors state no conflict of interest.
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Informed consent: Informed consent was obtained from all individuals included in this study.
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Ethical approval: The local Institutional Review Board deemed the study exempt from review.
References
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© 2021 Walter de Gruyter GmbH, Berlin/Boston
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Articles in the same Issue
- Frontmatter
- Review Article
- Congenital hyperinsulinism: recent updates on molecular mechanisms, diagnosis and management
- Original Articles
- Weight changes of children in 1 year during COVID-19 pandemic
- Three novel mutations of the BCKDHA, BCKDHB and DBT genes in Chinese children with maple syrup urine disease
- Rates of adrenal insufficiency using a monoclonal vs. polyclonal cortisol assay
- Hyperinsulinemic hypoglycemia in growth restricted convalescent preterm neonates: clinical characteristics and impediments to early diagnosis
- Identification of three novel pathogenic mutations in cystathionine beta-synthase gene of Pakistani intellectually disabled patients
- The prevalence of incidental finding of gynecomastia on thoracic computed tomography in the pediatric age group
- The prevalence of hypertension and elevated blood pressure and its correlation with overweight/obesity among students aged 6–17 years in Suzhou
- Investigation of androgen receptor gene CAG repeat length polymorphism in pubertal gynecomastia
- A single-centre study of genetic mutations, audiology, echocardiogram and pulmonary function in Saudi children with osteogenesis imperfecta
- A 10-year retrospective single-center study of alpha-fetoprotein and beta-human chorionic gonadotropin in Romanian children with (para)gonadal tumors and cysts
- Clinical, pathological and molecular spectrum of patients with glycogen storage diseases in Pakistan
- Allelic dropout in PAH affecting the results of genetic diagnosis in phenylketonuria
- Short Communication
- Role of the SARS-CoV-2 virus in the appearance of new onset type 1 diabetes mellitus in children in Gran Canaria, Spain
- Case Reports
- 3-M syndrome – a primordial short stature disorder with novel CUL7 mutation in two Indian patients
- The coincidence of two rare diseases with opposite metabolic phenotype: a child with congenital hyperinsulinism and Bloom syndrome
- Growth hormone deficiency in a child with benign hereditary chorea caused by a de novo mutation of the TITF1/NKX2-1 gene
- Identification of a novel mutation in the PHKA2 gene in a child with liver cirrhosis
