Evolution of new species requires few genetic changes Only a few genetic changes are needed to spur the evolution of new species—even if the original populations are still in contact and exchanging genes. Once started, however, evolutionary divergence ...

Study offers new theory of cancer development Patterns found in cancer's chaos illuminate tumor evolution For more than 100 years, researchers have been unable to explain why cancer cells contain abnormal numbers of chromosomes, a phenomenon known as aneuploidy. ...

Women working in Head Start programs report poor physical and mental health Women working in Head Start, the nation's largest federally funded early childhood education program which serves nearly one million low-income children, report higher than expected levels ...

Cellular tail length tells disease tale Simon Fraser University molecular biologist Lynne Quarmby's adventures in pond scum have led her and four student researchers to discover a mutation that can make cilia, the microscopic antennae on our cells, grow too long. ...

How protein suicide assure healthy cell structures This news release is available in Portuguese. Centrioles are tiny structures in the cell that play an important role in cell division and in the assembly of cilia and flagella. Changes in the ...

Opportunities abound for nonprofit hospitals aiming to address obesity through community benefit New STOP Obesity Alliance report offers guidance for implementing obesity programs to meet community health needs WASHINGTON, D.C., October 31, 2013 --New research from ...

New stem cells go back further Scientists isolate new human pluripotent stem cells capable of generating 'humanized' mouse models containing human-derived tissues One of the obstacles to employing human embryonic stem cells for medical use lies in their very ...

A high protein diet and meal replacements can reduce rebound weight gain New research shows that there are several effective strategies available to people wanting to avoid regaining weight after a successful diet. Anti-obesity drugs, meal replacements and a high ...

Chickens to benefit from biofuels bonanza Chickens could be the unexpected beneficiaries of the growing biofuels industry, feeding on proteins retrieved from the fermenters used to brew bioethanol, thanks to research supported by ...

New knowledge about serious muscle disease About 3,000 people in Denmark suffer from one of the serious muscle-related diseases that come under the heading of muscular dystrophy. Some patients diagnosed with muscular dystrophy die shortly after ...

Sex determiner gene of honey bee more complicated that previously assumed Cologne biologist recognizes huge significance of finding for bee keeping Bee colonies consist of a queen bee, lots of female worker bees and some male drones. The gene ...

Scientists modify Botox for the treatment of pain A team of 22 scientists from 11 research institutes led by Professor Bazbek Davletov, now at the University of Sheffield, created and characterised a new molecule that was able to alleviate hypersensitivity ...

Pizza perfect! A nutritional overhaul of 'junk food' and ready-meals is possible Pizza is widely regarded as a fully-paid up member of the junk food gang – maybe even the leader – at least the versions found on supermarket shelves or delivered to your ...

Researchers model familial amyloidosis in vitro using iPSC technology (Boston) -- Researchers from Boston University School of Medicine (BUSM) and Boston Medical Center (BMC) have generated the first known disease-specific induced pluripotent stem ...

Study gives Catholic schools poor marks EAST LANSING, Mich. — A national study led by a Michigan State University economist suggests Catholic schools are not superior to public schools after all. Math scores for Catholic students dropped between kindergarten and eighth ...

Suzaku study points to early cosmic 'seeding' Most of the universe's heavy elements, including the iron central to life itself, formed early in cosmic history and spread throughout the universe, according to a new study of the Perseus Galaxy Cluster ...

Researchers discover how retinal neurons claim the best brain connections Discovery may shed light on brain disease, development of regenerative therapies Real estate agents emphasize location, location, and – once more for good measure – location. It's the same in a developing brain, ...

Simple plants aren't always easy: Revision of the liverwort Radula buccinifera complex The supposedly widespread and variable Australasian liverwort species Radula buccinifera is nothing of the kind. The species was described in 1844, and reported for New Zealand in 1855. ...

Danish research provides new knowledge about the body's fight against HIV When a person is infected with HIV the virus infects the cells of the immune system. From here the virus spreads around the body, while at the same time breaking down important ...

Patient in 'vegetative state' not just aware, but paying attention Research raises possibility of devices in the future to help some patients in a vegetative state interact with the outside world A patient in a seemingly vegetative state, unable to move or ...

Defective nanotubes turned into light emitters UPV/EHU-University of the Basque Country researchers have developed and patented a new source of light emitter based on boron nitride nanotubes and suitable for developing high-efficiency optoelectronic devices This news ...

Scent marking The mammalian equivalent of showy plumage Many animals use scent marking to advertise their territory – they urinate at strategic locations – to communicate their social status and ownership. It has ...

Research identifies ways to improve access to mental health services A study by researchers from the Universities of Liverpool and Manchester has identified ways to improve how older people and ethnic minority populations access mental health care services. As ...

Studies of experimental hepatitis C drug show promise for preventing recurrence in liver transplant DETROIT – New drug therapies offer promise to some hepatitis C sufferers whose transplanted livers are threated by a recurrence of the disease, including some ...

Scientists discover why newborns get sick so often New research published in the Journal of Leukocyte Biology suggests that newborns lack the toll-like receptor 3 (TLR3) which recognizes different viruses and mediates immune response ...