Mutation in PYCR2 gene and hypomyelinating leukodystrophy in children: a case report study

Abstract

Introduction and importance: Hypomyelinating leukodystrophies are a heterogeneous group of inherited white matter disorders characterized by a predominant absence of myelin deposits in the central nervous system. Case presentation: The patient was a one-year-old girl child. She at the age of 6 months was hospitalized due to loose, muscle weakness, and an upward gaze for 7–8 min with complaints of fever and convulsions. Clinical discussion: Using the test of whole exome sequencing, a nonsense homozygous mutation was found in the PYCR2 gene, which a mutation in the PYCR2 gene causes hypomyelinating leukodystrophy type 10 disease. Conclusion: Advances in the field of genetics, increased awareness, and the increasing availability of genetic testing in small cities in developing countries are helping to better assess complex neurological disorders and establish a complete diagnosis.

Exploring metabolic alterations in PYCR2 deficiency: Unveiling pathways and clinical presentations of hypomyelinating leukodystrophy 10

“…After the first report of Nakayama et al,around 40 patients have been reported so far (Aaltio et al, 2024;Afroze & Mercimek-Andrews, 2020;Hosseini & Ghelichi-Ghojogh, 2023;Manaspon et al, 2021;Meng et al, 2017;Nakayama et al, 2015;Zaki et al, 2016). There was an adult patient from a Chinese case report, while all others were under the age of 20 (Xie et al, 2021).…”