Quantcast

Latest Wayne Potts Stories

Promiscuous Female Mice Have Sexier Sons
2013-11-19 07:35:02

University of Utah Males make more pheromone if mama had access to many mates University of Utah biologists found that when mother mice compete socially for mates in a promiscuous environment, their sons play hard and die young: They attract more females by making more urinary pheromones, but smelling sexier shortens their lives. "If your sons are particularly sexy, and mate more than they would otherwise, it's helping get your genes more efficiently into the next generation,"...

Safe Sugar Dose In Humans Proves Toxic To Mice
2013-08-13 15:45:07

Brett Smith for redOrbit.com - Your Universe Online Using a novel study approach, researchers at the University of Utah found a high-sugar diet considered borderline-safe for human consumption can increase mortality and reduce vigor in mice. Researchers said the sugary diet had a similar effect to being the inbred offspring of first cousins in the mice they observed. "Our results provide evidence that added sugar consumed at concentrations currently considered safe exerts dramatic...

2012-02-06 22:35:48

Utah study implicates arms race between genes and germs University of Utah biologists found new evidence why mice, people and other vertebrate animals carry thousands of varieties of genes to make immune-system proteins named MHCs — even though some of those genes make us susceptible to infections and to autoimmune diseases. "Major histocompatibility complex" (MHC) proteins are found on the surface of most cells in vertebrate animals. They distinguish self from foreign, and...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
Related