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dc.contributor.authorBremner, William J.en_US
dc.contributor.authorPaulsen, C. Alvinen_US
dc.contributor.authorMeriggiola, M. Cristinaen_US
dc.contributor.authorNoonan, Elizabeth A.en_US
dc.date.accessioned2008-10-17T20:43:00Z
dc.date.available2008-10-17T20:43:00Z
dc.date.issued1996-02en_US
dc.identifier.citationHum Reprod. 1996 Feb;11(2):248-52en_US
dc.identifier.urihttp://hdl.handle.net/1773/4452
dc.description.abstractReproductive functions in most animals demonstrate seasonal fluctuations that allow young to be born at a time of the year favourable for their survival. Whether there is a seasonal change in the human reproductive system is unclear. In the present study, we measured serum concentrations of luteinizing hormone, follicle stimulating hormone, testosterone and inhibin in the same 16 normal men sampled monthly for 1 year. A statistically significant increase in all four measured hormones was found in June, with a nadir in August. Our findings suggest that a circannual rhythm of gonadotrophins and testicular hormones exists in normal men. The mechanism leading to this rhythm and the importance of the rhythm in human biology are unknown.en_US
dc.language.isoen_USen_US
dc.publisherOxford University Pressen_US
dc.subjectcircannualen_US
dc.subjecthormonesen_US
dc.subjectreproductive functionen_US
dc.subject.meshResearch Support, U.S. Gov't, Non-P.H.S.en_US
dc.subject.meshResearch Support, Non-U.S. Gov'ten_US
dc.subject.meshSex Characteristicsen_US
dc.subject.meshSeasonsen_US
dc.subject.meshFollicle Stimulating Hormone, blooden_US
dc.subject.meshAdulten_US
dc.subject.meshMaleen_US
dc.subject.meshHumansen_US
dc.subject.meshTestosterone, blooden_US
dc.subject.meshPeriodicityen_US
dc.subject.meshReference Valuesen_US
dc.subject.meshOsmolar Concentrationen_US
dc.subject.meshInhibins, blooden_US
dc.subject.meshLuteinizing Hormone, blooden_US
dc.titleAnnual patterns of luteinizing hormone, follicle stimulating hormone, testosterone and inhibin in normal menen_US
dc.typeArticleen_US


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