Studies on heredity rule of the first genealogy regarding fatal familial insomnia in Henan province
10.3760/cma.j.issn.0254-6450.2009.01.001
- VernacularTitle:河南省致死性家族性失眠症家系的流行病学调查及遗传规律研究
- Author:
Jin ZHANG
1
;
Jun HAN
;
Xiao-Hong SHI
;
Wan-Shen GUO
;
Sheng-Li XIA
;
Qi SHI
;
Jian-Ming CHEN
;
Wei-Qin ZHAO
;
Zhi-Qiang XIE
;
Xiao-Jing SHEN
;
Meng-Lei LI
;
Yan-Jun LEI
;
Song SHI
;
Wei ZHOU
;
Bao-Yun ZHANG
;
Chen GAO
;
Bing SHAN
;
Yan-Jun GUO
;
De-Xin WANG
;
Bian-Li XU
;
Xiao-Ping DONG
Author Information
1. 河南省疾病预防控制中心
- Keywords:
Prion disease;
Fatal familial insomnia;
Genealogical investigation;
Gene mutation
- From:
Chinese Journal of Epidemiology
2009;30(1):1-5
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the epidemiological,genealogic characteristic,familial history of the families with fatal familial insomnia,its clinical and pathological features as well as the heredity rule of related genes.Methods 135 familial members of 7 eras were studied.Vein blood samples from patients as well as from some familial members were collected.PRNP gene was studied with PCR,its serial was determined and then authenticated with Nsp I.Brain tissue was obtained for neuropathological test and PrPSc test with Western blot method.Results Clinical symptoms of the 2 diagnosed cases were typical.11 familial members died of similar neural disease.32 samples of their familial members,codon at D178N of PRNP of 11 members was mutated,with mutation rate as 34.38% while D129N showed as methionine.Brain tissue of both probands denaturalized into spongiform and the nerve fiber was absent but PrPSc protein was identified.Conclusion Genealogy was described in the family with fatal familial insomnia since the patients had typical clinical symptoms and pathological characteristics.It seemed necessary to confirm cases of fatal familial insomnia and their genealogy with epidemiological data and to investigate its gene characteristics as well as with neuropathological and Western blot tests.
