No evidence older women generate new eggs

No evidence older women generate new eggs

It is highly unlikely that older women generate new eggs, report researchers at the University of South Florida in collaboration with a center in China. The USF study counters the controversial…
How to steer a moving cell

How to steer a moving cell

Researchers at the University of California, San Diego (UCSD) School of Medicine have developed new technology which, combined with proteomics – the large-scale study of the structure and function of…
Genetic roots of bipolar disorder revealed

Genetic roots of bipolar disorder revealed

The likelihood of developing bipolar disorder depends in part on the combined, small effects of variations in many different genes in the brain, none of which is powerful enough to cause the disease…
The cost of gene patents - an expensive example

The cost of gene patents - an expensive example

The drug trastuzumab (Herceptin) is used to treat HER2-positive breast cancer (a type of breast cancer that overexpresses the HER2 gene and accounts for about 25% of all breast cancers). Trastuzumab…
Sex on the brain - how men and women differ

Sex on the brain - how men and women differ

New evidence on sex differences in people’s brains and behaviors emerges with the publication of results from the British Broadcasting Corporation’s (BBC) Sex ID Internet Survey. Survey questions and…
The stem cells that weren't there

The stem cells that weren't there

Diabetes researchers, investigating how the body supplies itself with insulin, discovered to their surprise that adult stem cells, which they expected to play a crucial role in the process, were…
Making a better chromosome map

Making a better chromosome map

Researchers at the University of Illinois have developed a simple and economical technique for imaging and mapping fruit fly chromosomes. This new approach will enable them to construct the first…
SUMO wrestling in the brain

SUMO wrestling in the brain

Increasing the amount of SUMO, a small protein in the brain, could be a way of treating diseases such as epilepsy and schizophrenia, reveal scientists at the University of Bristol, UK. Their findings…
CHANDRA sees brightest supernova ever

CHANDRA sees brightest supernova ever

The brightest stellar explosion ever recorded may be a long-sought new type of supernova, according to observations by NASA's Chandra X-ray Observatory and ground-based optical telescopes. This…
Will global warming increase disease in corals?

Will global warming increase disease in corals?

Coral reefs, among Earth's richest ecosystems, traditionally teem with an abundance of life. But in recent years, corals have been dying in droves. Scientists suspect a variety of factors, ranging…
New study says male infidelity is 'inevitable'

New study says male infidelity is 'inevitable'

According to this study, marital sex is the single greatest HIV risk for women around the world. Marital infidelity by men is so deeply ingrained across many cultures, say Mailman School of Public…
Research an end to concerns about fat in food

Research an end to concerns about fat in food

Imagine a world where you can eat any kind of fat you want without raising your risk of heart disease. A new study in mice raises just that possibility. "We deleted an enzyme in mice and they could…
Meditation may fine-tune attention span

Meditation may fine-tune attention span

Everyday experience and psychology research both indicate that paying close attention to one thing can keep you from noticing something else. However, a new study from the University of Wisconsin…