Latest Nirao Shah Stories

2012-02-03 09:00:00

Men and women may be equals, but they often behave differently when it comes to sex and parenting. Now a study of the differences between the brains of male and female mice in the February 3rd issue of the Cell Press journal Cell provides insight into how our own brains might be programmed for these stereotypically different behaviors. The new evidence shows that the sex hormones — testosterone, estrogen, and progesterone — act in a key region of the brain, switching certain...

Male and Female Behavior Deconstructed
2012-02-03 04:50:16

[ Watch the Video ] UCSF Team Uncovers Genes Influenced by Sex Hormones that Control Masculine and Feminine Behaviors in Mice Hormones shape our bodies, make us fertile, excite our most basic urges, and as scientists have known for years, they govern the behaviors that separate men from women. But how? Now a team of scientists at the University of California, San Francisco (UCSF) has uncovered many genes influenced by the male and female sex hormones testosterone and estrogen that,...

2009-10-02 09:09:47

It's often said that overly macho males suffer from "too much testosterone." But a new study in mice reveals how estrogen might share in that blame. The report in the October 2nd issue of Cell, a Cell Press publication, reveals how early estrogen exposure "masculinizes" the brain circuitry, predisposing boys to be boys as it were. That early event is specifically critical in producing male mice that will pick fights with other males and that dutifully mark their territories with urine. "It's...

Word of the Day
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'