testosterone

Male Testosterone Levels Increase When Victorious in Competition Against Rivals, but Not Friends
05/14/2013 - 16:44

Sporting events can bring a community together, such as when the Louisville Cardinals won the NCAA championship and University of Louisville campus was filled with camaraderie. They also can fuel bitter rivalries, such as the long-standing animosity between the St. Louis Cardinals and the Chicago Cubs. A new University of Missouri study has found that testosterone levels during group competition are modulated depending on the relationships among the competitors and may be related to the formation of alliances in warfare.

 

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Prenatal Testosterone Levels Influence Later Response to Reward
11/05/2012 - 11:03

New findings led by Dr. Michael Lombardo, Prof. Simon Baron-Cohen and colleagues at the University of Cambridge indicate that testosterone levels early in fetal development influence later sensitivity of brain regions related to reward processing and affect an individual’s susceptibility to engage in behavior, that in extremes, are related to several neuropsychiatric conditions that asymmetrically affect one sex more than the other.

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Testosterone regulates solo song of tropical birds
10/31/2012 - 12:29

Researchers of the Max Planck Institute for Ornithology in Seewiesen have now discovered that in duetting African white-browed sparrow weavers, the solo song of dominant males is linked to elevated levels of testosterone. What is more, the male-typical solo song could be activated via testosterone treatment in female birds. The study thus shows a complex relationship between song behaviour and hormone concentration also in a tropical bird species.

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Obese Teen Boys Have Up to 50 Percent Less Testosterone than Lean Boys
10/16/2012 - 14:03

A study by the University at Buffalo shows for the first time that obese males ages 14 to 20 have up to 50 percent less total testosterone than do normal males of the same age, significantly increasing their potential to be impotent and infertile as adults.

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New drugs, new ways to target androgens in prostate cancer therapy
06/20/2012 - 14:18

Prostate cancer cells require androgens including testosterone to grow. A recent review in the British Journal of Urology International describes new classes of drugs that target androgens in novel ways, providing alternatives to the traditional methods that frequently carry high side effects.

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Low testosterone levels linked to diabetes
05/04/2012 - 17:23

University scientists have found that low testosterone levels are linked to a resistance to insulin, the hormone that controls blood sugar levels.

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