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Rapamycin: Limited Anti-Aging Effects
July 25, 2013 — The drug rapamycin is known to increase lifespan in mice. Whether rapamycin slows down aging, however, remains unclear. Scientists have now found that rapamycin extends lifespan -- but its impact on ... > full story -
Neuroscientists Plant False Memories in Mice: Location Where Brain Stores Memory Traces, Both False and Authentic, Pinpointed
July 25, 2013 — The phenomenon of false memory has been well-documented: In many court cases, defendants have been found guilty based on testimony from witnesses and victims who were sure of their recollections, but ... > full story -
Marijuana Use in Adolescence May Cause Permanent Brain Abnormalities, Mouse Study Suggests
July 24, 2013 — Regular marijuana use in adolescence, but not adulthood, may permanently impair brain function and cognition, and may increase the risk of developing serious psychiatric disorders such as ... > full story -
Scientists Unable to Find Evidence of 'Embryonic-Like' Cells in Marrow of Adult Mice
July 24, 2013 — Research on human embryonic stem cells has been a political and religious lightning rod for more than a decade. Scientists say they have been unable to identify any very small, pluripotent cells in ... > full storyMore: -
How to Make Preclinical Animal Research More Effective
July 23, 2013 — Only 11% of drugs that enter clinical trials in humans are ultimately found safe and effective enough to receive regulatory approval. One possible reason for this dismal success rate is flawed ... > full story -
Scientific Who's Who of Bolivian Mammals
July 23, 2013 — Biologists have published a massive database of mammals occurring in Bolivia, shedding light on the poorly known yet vast wildlife diversity of this South American ... > full story -
Study Lays Groundwork for Norovirus Anti-Viral Treatments
July 22, 2013 — There's no vaccine to prevent norovirus, or drugs to treat the pesky virus that sickens millions each year and is known to complicate cruise ship vacations. But a first ever small animal model ... > full story -
Common Stem Cell in Heart and Lung Development Explains Adaption for Life on Land
July 21, 2013 — Biologists have known that the co-development of the cardiovascular and pulmonary systems is a recent evolutionary adaption to life outside of water. Researchers show that the pulmonary vasculature ... > full story -
Sex Chromosome Shocker: The 'Female' X a Key Contributor to Sperm Production
July 21, 2013 — Painstaking new analysis of the genetic sequence of the X chromosome -- long perceived as the "female" counterpart to the male-associated Y chromosome -- reveals that large portions of the X have ... > full story -
Gene Mutation Linked to Obesity: Mice Gain Weight Even When Fed Normal Amounts of Food
July 18, 2013 — Researchers have identified a genetic cause of severe obesity that, though rare, raises new questions about weight gain and energy use in the general obese population. The research involved genetic ... > full story
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