The effects of testosterone on sleep and sleep-disordered breathing in men: Its bidirectional interaction with erectile function
Andersen, Monica Levy [UNIFESP]
Tufik, Sergio [UNIFESP]
Is part ofSleep Medicine Reviews
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As a major androgen with a key rote in developing and maintaining mate sexual characteristics, testosterone exerts a broad range of actions regulating several systems throughout human life. This article reviews data on the role of sleep in modulating endocrine release, as well. as data on the effects of testosterone and androgen-replacement therapy on sleep architecture and breathing. This review also discusses the interaction of testosterone and sleep, with a particular emphasis on bilateral effects. Changes in nocturnal testosterone are sleep-related, with levels rising during sleep and failing on waking, whereas circadian effects are apparently marginal. Peak testosterone levels coincide with rapid-eye movement (REM) sleep onset. the decreasing sleep efficiency and numbers of REM sleep episodes with altered REM sleep latency observed in older men are associated with lower concentrations of circulating testosterone. the well-established mate preponderance of sleep apnea suggests that sex hormones are involved in the pathogenesis of this breathing disorder. in addition, androgens are most certainly key players in the central and peripheral modulation of erectile function. Among other effects, sleep curtailment has been shown to lead to reduced levels of circulating androgens in healthy men and mate rodents, and this highlights the biological significance of sleep homeostasis for endocrine regulation. (C) 2008 Elsevier B.V. All. rights reserved.
CitationSleep Medicine Reviews. London: W B Saunders Co Ltd, v. 12, n. 5, p. 365-379, 2008.
Sleep-related breathing disorders
SponsorshipAssociacdo Fundo de Incentivo a Psicofarmacologia (AFIP)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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