Creutzfeldt-Jakob disease with PRNP G114V mutation in a Chinese family.
BACKGROUND
Recent evidence has shown clinical phenotypic heterogeneity of inherited prion diseases, even between patients harbouring the same mutation in the PRNP gene.


OBJECTIVE
We collected clinical data from a Chinese family with autosomal dominant dementia and screened the PRNP gene on 28 living members. A stereotactic biopsy of the right frontal lobe of the proband was performed.


RESULTS
The family comprised four affected individuals within two successive generations. The age of onset was in 30 or 40 s, and the duration was about 2-3 years. Clinical features of the affected members included neuropsychiatric disturbances, progressive dementia and extrapyramidal symptoms. Immunostaining for prion protein showed fine granular deposits of PrP(sc) in the neuropil. The PRNP gene analysis demonstrated a heterozygous G114V mutation in 15 family members. The proband was diagnosed as familial Creutzfeldt-Jakob disease (fCJD).


CONCLUSIONS
This study strengthens the linkage of the G114V mutation to CJD. It supports the worldwide distribution of fCJD despite differences in genetic background.
Liu
Z
Z
Department of Neurology, Xuan Wu Hospital, Capital University of Medical Sciences, Beijing, PR China.
Jia
L
L
Piao
Y
Y
Lu
D
D
Wang
F
F
Lv
H
H
Lu
Y
Y
Jia
J
J
D048948:14-3-3 Proteins / Q000134:cerebrospinal fluid; D000328:Adult; D000368:Aged; D044466:Asian People / Q000235:genetics; D002540:Cerebral Cortex / Q000473:pathology; D007562:Creutzfeldt-Jakob Syndrome / Q000134:cerebrospinal fluid / Q000235:genetics*; D004252:DNA Mutational Analysis / Q000379:methods; D005192:Family Health; D005260:Female; D005904:Glial Fibrillary Acidic Protein / Q000378:metabolism; D005998:Glycine / Q000235:genetics*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009154:Mutation / Q000235:genetics; D010641:Phenotype; D000072002:Prion Proteins; D011328:Prions / Q000235:genetics*; D014633:Valine / Q000235:genetics*
D048948:14-3-3 Proteins; D005904:Glial Fibrillary Acidic Protein; C512656:PRNP protein, human; D000072002:Prion Proteins; D011328:Prions; D014633:Valine; D005998:Glycine