[Phenotypic and genetic analysis of two pedigrees affected with hereditary coagulation FXII deficiency].
Zhonghua Yi Xue Yi Chuan Xue Za Zhi
; 35(6): 800-803, 2018 Dec 10.
Article
en Zh
| MEDLINE
| ID: mdl-30512149
ABSTRACT
OBJECTIVE:
To carry out phenotypic and genotypic analysis for two Chinese pedigrees affected with coagulation factor XII (F XII) deficiency.METHODS:
Plasma prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen (FIB), thrombin time (TT), and blood coagulation factor VIII, IX, XI, XII activity (FVIIIC, FIXC, FXIC, FXIIC) were determined with one stage clotting assay on a STAGO coagulation analyzer. FXII antigen was determined with an enzyme linked immunosorbent assay (ELISA). The 14 exons and their flanking sequences of the F12 gene were subjected to PCR amplification and Sanger sequencing. The conservation and structure of mutant protein were analyzed with MegAlign software and PYMOL software.RESULTS:
The APTT of the probands was significantly prolonged, while their FXIIC and FXIIAg were significantly reduced. Genetic analysis of the proband has revealed three novel mutations in the F12 gene, including g.5972G>A splice site mutation in intron 5, g.8810_8814delGTCTA in exon 14, and g.6259G>A (p.Pro182Leu) in exon 7. In addition, a previously known mutation IVS13-1G>A has been found.CONCLUSION:
Four mutations have been identified in the two Chinese pedigrees, among which three were novel. Above mutations probably played a role in the defect of FXII in the two pedigrees.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Factor XII
/
Deficiencia del Factor XII
Tipo de estudio:
Prognostic_studies
Límite:
Humans
Idioma:
Zh
Año:
2018
Tipo del documento:
Article