Abstract
Asthma, a family of airway disorders characterized by airway inflammation, has an increasing incidence worldwide. Platelet-activating factor (PAF) may play a role in the pathophysiology of asthma. Its proinflammatory actions are antagonized by PAF acetylhydrolase. A missense mutation (V279F) in the PAF acetylhydrolase gene results in the complete loss of activity, which occurs in 4% of the Japanese population. We asked if PAF acetylhydrolase deficiency correlates with the incidence and severity of asthma in Japan. We found that the prevalence of PAF acetylhydrolase deficiency is higher in Japanese asthmatics than healthy subjects and that the severity of this syndrome is highest in homozygous-deficient subjects. We conclude that the PAF acetylhydrolase gene is a modulating locus for the severity of asthma.
Authors
Diana M. Stafforini, Toshio Numao, Alexander Tsodikov, Darius Vaitkus, Takeshi Fukuda, Naoto Watanabe, Naoto Fueki, Thomas M. McIntyre, Guy A. Zimmerman, Sohei Makino, Stephen M. Prescott
Genotype distribution at position 279 of PAF acetylhydrolase in Japanese asthmatics and healthy controls
Copyright © 2024 American Society for Clinical Investigation
ISSN: 0021-9738 (print), 1558-8238 (online)