| 1 | Second to fourth digit ratio (2D:4D) and testosterone in men显示文摘Aim: To investigate the relationship between 2D:4D and testosterone in men attending an infertility clinic and men drawn from the general population. Methods: Data on 2D:4D and testosterone from two samples were collected: (1) 43 men attending an infertility clinic, and (2) 51 men drawn from the general population without regard to fertility. Results: In sample (1) there were negative associations between 2D:4D and testicular function, and men with lower 2D:4D in their right compared to left hand had higher testosterone levels than men with higher 2D:4D in their right compared to left hand. Sample (2) showed no significant associations between 2D:4D or side differences in 2D:4D and testosterone. Conclusion: Adult levels of testosterone may be related to aspects of 2D:4D in samples which contain men with compromised testicular function, but not in men from normative samples. Associations between 2D:4D and fertility-associated traits probably arise from early organisational effects of testosterone rather than from activational effects of current testosterone. (Asian J Androl 2004 Sep; 6: 211-215) | J.T.Manning S.Wood E.Vang J.Walton P.E.Bundred C.van Heyningen D.I.Lewis-Jones | 2004 | Asian Journal of Andrology2004，6，3： | 7 |
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