WASHINGTON: Women are twice as likely as men to have asthma, and this gender difference may be caused by the effects of sex hormones on lung cells, a study has found. Researchers found that testosterone hindered an immune cell linked to asthma symptoms, such as inflammation and mucus production in the lungs.
"When we started this study, we really thought that ovarian hormones would increase inflammation, more so than testosterone making it better," said Dawn Newcomb, from the Vanderbilt University in the US.
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