Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0012833 (dizziness)
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A case of Creutzfeldt-Jakob disease (CJD) with a rare mutation of the prion protein (PrP) gene (PRNP) at codon 208 (R208H), while the codon 129 was a methionine homozygous genotype is reported. The patient initial displayed hand tremor, dizziness and progressive cognitive dysfunction. Subsequently, other symptoms gradually appeared, including cerebellar ataxia and mental disorder. No periodic activity was recorded at electroencephalography (EEG) and 14-3-3 protein in cerebrospinal fluid was negative. Total clinical course was about 4 months. Retrospective investigation of this family across seven generations did not figure out clear family history. However, genetic analyses revealed six first-degree family members with the R208H allele.
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PMID:The first Chinese case of Creutzfeldt-Jakob disease patient with R208H mutation in PRNP. 2179 75

Creutzfeldt-Jakob disease (CJD), also known as corticostriate spinal degeneration, subacute spongiform encephalopathy or infectious spongiform encephalopathy, is a type of degenerative disease of the central nervous system caused by prion protein (PrP) infection, which is the most common type of human PrP disease. CJD is genetic and infectious, and is one of the most common causes of rapid progressive dementia with rare clinical occurrence. Herein, we report the clinical conditions of 2 cases of patients with different type of CJD we treated and followed up recently, and a review of relevant literature. The patient in case 1 was admitted due to 'dizziness with hypomnesis, and mental and behavior disorder'. He was considered to suffer from a central nervous system infection - a viral encephalitis, but one month later, a repeated cranial MRI showed lace sign of bilateral frontotemporal parietal lobe in DWI sequence, an AEEG indicated periodic synchronous discharge, and the detection of cerebrospinal fluid 14-3-3 protein was positive. It was suggested to be diagnosed as the sporadic CJD. The patient in case 2 was admitted because of 'progressive hypomnesis'. Cerebrospinal fluid 14-3-3 protein detection was negative, but the V203I-related mutation was found in the PRNP gene detection. The patient was suggested to be diagnosed as genetic CJD. Both patients died in a short time. An earlier diagnosis can provide a time window for treatment, and avoid unnecessary transmission in hospital, as well as doctor-patient dispute.
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PMID:Report and literature review on two cases with different kinds of Creutzfeldt-Jakob disease. 2939 90