Causes of transsexuality Docter and others, but opposed by Charles Allen Moser, Larry Nuttbrock, Julia Serano, and the World Professional Association for Transgender Health.<section end="factors" /> A 2008 study compared 112 male-to-female transsexuals (both androphilic and gynephilic), mostly already undergoing hormone treatment, with 258 cisgender male controls. Male-to-female transsexuals were more likely than cisgender males to have a longer version of a receptor gene (longer repetitions of the gene) for the sex hormone androgen or testosterone, which reduced its effectiveness at binding testosterone. The androgen receptor (NR3C4) is activated by the binding of testosterone or dihydrotestosterone, where it plays a critical role in
Asia Pacific Coalition on Male Sexual Health Nations officials. Its mission is to assist local organizations in advocacy for the rights of MSMs and transgender males. Asia Pacific Coalition on Male Sexual Health The Asia Pacific Coalition on Male Sexual Health, also known as APCOM, is a network of non-profit organizations which share the mission of improving male sexual health in South Asia, East Asia, and the Pacific Islands. APCOM was launched in July 2007 after delegates to the Delhi 2006 International Consultation on Male Sexual Health and HIV in Asia and the Pacific identified a need for more organization in the field of male sexual health.