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Live fast, die young? Maybe not

Biology / Plants & Animals

created Mar 09, 2009 | popularity not rated yet | comments 0

The theory that a higher metabolism means a shorter lifespan may have reached the end of its own life, thanks to a study published in the journal Physiological and Biochemical Zoology. The study, led by Lobke Vaanholt (University ...


Reproductive life of male mice is increased by living with females

Biology /

created Jan 22, 2009 | popularity not rated yet | comments 0

Living with a female of its species can extend the reproductive life of a male mouse by a dramatic 20 percent, according to a study reported at the online site of the journal Biology of Reproduction.


Biologists identify the molecular basis of high-altitude adaptation in mice

Biologists identify the molecular basis of high-altitude adaptation in mice

Biology / Evolution

created Aug 10, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Biologists have long known how adaptive evolution works. New mutations arise within a population and those that confer some benefits to the organism increase in frequency and eventually become ...


Living longer and happier

Medicine & Health / Research

created Aug 19, 2009 | popularity 5 / 5 (5) | comments 2

A new study from the University of Missouri may shed light on how to increase the level and quality of activity in the elderly. In the study, published in this week's edition of Public Library of Science - ONE, MU resear ...


Stem cells may solve mystery of early pregnancy breast cancer protection

Medicine & Health / Cancer

created Sep 16, 2008 | popularity not rated yet | comments 0

The answer to why an early pregnancy seems to protect against breast cancer could rest with a decrease in stem cells found after animals have given birth, said researchers at Baylor College of Medicine in a report that appears ...


Mice living in sandy hills quickly evolved lighter coloration

Mice living in sandy hills quickly evolved lighter coloration

Biology / Evolution

created Aug 27, 2009 | popularity 4.8 / 5 (5) | comments 9

In a vivid illustration of natural selection at work, scientists at Harvard University have found that deer mice living in Nebraska's Sand Hills quickly evolved lighter coloration after glaciers deposited ...


Social isolation makes strokes more deadly, study finds

Medicine & Health / Research

created Mar 23, 2009 | popularity not rated yet | comments 0

New research in mice suggests that social isolation may promote more damaging inflammation in the brain during a stroke. Researchers at Ohio State University found that all the male mice that lived with a female partner survived ...


Exercise can aid recovery after brain radiation

Medicine & Health / Neuroscience

created Oct 18, 2009 | popularity not rated yet | comments 1

Exercise is a key factor in improving both memory and mood after whole-brain radiation treatments in rodents, according to data presented by Duke University scientists at the Society for Neuroscience meeting.


Study shows how social support may protect brain during stroke

Medicine & Health / Research

created Nov 18, 2008 | popularity 4.5 / 5 (2) | comments 0

New research in mice suggests that high levels of social support may provide some protection against strokes by reducing the amount of damaging inflammation in the brain.


Light at night linked to symptoms of depression in mice

Medicine & Health / Neuroscience

created Oct 21, 2009 | popularity 4 / 5 (7) | comments 2

Too much light at night can lead to symptoms of depression, according to a new study in mice. Researchers found that mice housed in a lighted room 24 hours a day exhibited more depressive symptoms than did similar mice that ...


Seeing Nanotubes Targeting Tumors In Vivo

Nanotechnology / Bio & Medicine

created Oct 27, 2008 | popularity 4.4 / 5 (7) | comments 0

Carbon nanotubes have significant potential for delivering both imaging and therapeutic agents to tumors, but there is still a need to better quantify how well these rolled-up sheets of graphite can target tumors. Now, thanks ...


By amplifying cell death signals, scientists make precancerous cells self-destruct

Medicine & Health / Research

created Aug 15, 2008 | popularity 4.6 / 5 (17) | comments 0

When a cell begins to multiply in a dangerously abnormal way, a series of death signals trigger it to self-destruct before it turns cancerous. Now, in research to appear in the August 15 issue of Genes & Development, Rockef ...


Study suggests why heart attack victims do better with social support

Medicine & Health / Research

created Sep 18, 2008 | popularity 3.5 / 5 (2) | comments 0

Researchers have identified specific damages to the brain that may occur when heart attack victims are socially isolated from others. The study in mice found that those animals that lived alone before undergoing a heart attack ...


Shining a light on disease -- tracking light-emitting bacteria during infection

Biology / Cell & Microbiology

created Sep 09, 2009 | popularity not rated yet | comments 0

By attaching light-emitting genes to infectious bacteria in an experimental system, researchers at University College, Cork, Ireland, have been able to track where in the body the bacteria go - giving an insight into the ...


NEDD9 protein supports growth of aggressive breast cancer

Medicine & Health / Cancer

created Oct 02, 2009 | popularity 5 / 5 (1) | comments 1

Researchers at Fox Chase Cancer Center have demonstrated that a protein called NEDD9 may be required for some of the most aggressive forms of breast cancer to grow. Their findings, based on the study of a mouse model of breast ...