[Analysis for phenylalanine hydroxylase gene mutations in 35 ethnic Hui children from Ningxia with phenylketonuria].

Autor:	Mao X; Maternal and Child Health Hospital of Ningxia Hui Autonomous Region, Yinchuan, Ningxia 750004, P.R. China. yuwz2013@126.com., He J, Liu Y, Li X, Yu W
Jazyk:	čínština
Zdroj:	Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics [Zhonghua Yi Xue Yi Chuan Xue Za Zhi] 2014 Feb; Vol. 31 (1), pp. 6-10.
DOI:	10.3760/cma.j.issn.1003-9406.2014.01.002
Abstrakt:	Objective: To determine the type and frequency of phenylalanine hydroxylase gene (PAH) mutations in ethnic Hui patients from Ningxia with phenylketonuria (PKU). Methods: For 35 PKU children patients and 50 healthy individuals, all exons and promoters of the PAH gene were analyzed with PCR and direct sequencing. Results: Twenty mutations, including 8 missense mutations (40%), 5 nonsense mutations (25%), 4 splice site mutations (20%) and 3 deletion mutants (15%) were discovered. The overall detection rate was 68.57% (48/70). Common mutations have included R243Q (12.86%), R241C (11.43%), EX6-96A to G (5.71%), Y356X (5.71%), R413P(4.29%) and Q232X(4.29%), whilst rarer ones have included S16fsX10 (2.86%), R111X (2.86%) and L430P (2.86%). Among these, S16fsX10, L430P, D222G and IVS11+ 1G to A have not been reported previously. Y414X and S303fsX38 have not been reported in Hui ethnic group. No mutation was detected in the 50 normal controls. Conclusion: The types and distribution of PAH gene mutations in ethnic Hui from Ningxia have been different from other areas of China. The mutations also showed a rich diversity.
Databáze:	MEDLINE
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