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01.09.2016 | Short Communication | Ausgabe 5/2016

Environmental Health and Preventive Medicine 5/2016

Frequency of RNF213 p.R4810K, a susceptibility variant for moyamoya disease, and health characteristics of carriers in the Japanese population

Zeitschrift:
Environmental Health and Preventive Medicine > Ausgabe 5/2016
Autoren:
Yang Cao, Hatasu Kobayashi, Takaaki Morimoto, Risako Kabata, Kouji H. Harada, Akio Koizumi

Abstract

Objectives

RNF213 p.R4810K is a founder polymorphism that confers genetic susceptibility to moyamoya disease in East Asia. Only a few studies have investigated the symptoms and disease histories of RNF213 p.R4810K carriers in Japan. This study investigated the frequency of RNF213 p.R4810K in the general Japanese population and the health characteristics of the carriers.

Methods

Through a health-promotion campaign in the city of Uji, Japan, 519 subjects (120 males and 399 females) of the general Japanese population were genotyped for RNF213 p.R4810K and interviewed to determine health characteristics.

Results

Nine RNF213 p.R4810K heterozygous carriers (GA genotype) and no RNF213 p.R4810K homozygous carriers (AA genotype) were found among the 519 individuals. The estimates of the genotypes and allele frequencies for RNF213 p.R4810K were 1.73 and 0.87 %, respectively. There were no obvious differences in age, gender ratio, body mass index, hypertension, dyslipidemia, diabetes, kidney disease, liver disease, heart disease, or drinking or smoking habits between carriers and non-carriers. Interestingly, one patient with moyamoya disease was found among the nine RNF213 p.R4810K carriers.

Conclusions

This study showed the genotypes and allele frequencies of RNF213 p.R4810K in the general Japanese population to be similar to results of previous reports.

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