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Rare genetic E196A mutation in a patient with Creutzfeldt-Jakob disease: a case report and literature. | LitMetric

Genetic Creutzfeldt-Jakob disease (gCJD) is characterized by mutations in the PRNP gene and represents approximately 10-15% of the human prion diseases. Here, we report a 42-year-old Chinese man who was diagnosed with gCJD. The patient had a rare mutation in codon 196 (E196A) of PRNP leading to an exchange of amino acid from glutamic acid (E) to alanine (A). The polymorphism of codon 129 in the patient was methionine homozygote. His mother and daughter are asymptomatic carriers of the same mutation. The clinical manifestations were similar to those of sporadic CJD. 14-3-3 protein was positive in cerebrospinal fluid, and there were sharp slow complex waves in electroencephalography and ribbon-like signals on magnetic resonance imaging (MRI). The main complaints of patient changed from visual space and visual colour to psychotic symptoms with enhanced high signal intensity on the occipital and frontal cortices on MRI. We compared the clinical characteristics of the current patient with those of previously reported Chinese patients with other gCJD of E196A mutation to summarize the common features of E196A gCJD.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7518748PMC
http://dx.doi.org/10.1080/19336896.2020.1769528DOI Listing

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