Allelic frequency of pathogenic α1-antitrypsin variants in the Japanese population: Results from a survey of open Japanese genetic variation databases.

Abstract excerpt

α1-antitrypsin deficiency (AATD) is a hereditary disorder with a global prevalence that differs across regions. AATD is highly prevalent in Europe and North America but rarely found in Asian countries, including Japan, possibly because of the founder effect of the pathogenic SERPINA1 variants PI*Z and PI*S. However, AATD remains underdiagnosed even in high-prevalence and low-prevalence regions, possibly because...

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