Friday, January 18, 2013

Gut Flora Drive Sex Hormones

"When the researchers took a closer look, they determined that the bacteria were able to change how genes in the recipient mice worked by increasing the animals’ levels of testosterone. Bacteria from male mice transplanted into females raised their testosterone levels a bit and kept them from developing diabetes. This result may help to explain why some autoimmune disorders in people—such as multiple sclerosis and rheumatoid arthritis—are more common among women (who usually have comparatively low levels of testosterone) than men."

Transplanted Bacteria Turn Up Testosterone to Protect Mice Against Diabetes | Observations, Scientific American Blog Network