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Brain imaging shows there may be a cognitive difference in people with addictions

Scientists have for the first time identified brain sites that fire up more when people make impulsive decisions.

28 Dec 2007

Key enzyme keeps synapse on track

At its core, healthy neurological function hinges on the efficient passage of information between brain cells via the synapse.

20 Dec 2007

Tweaking a gene may fix Fragile X syndrome

According to new research clues to Fragile X syndrome may be connected to one single human gene.

20 Dec 2007

Hardening of the arteries - mutant gene identified as culprit

A genetic mutation expands lesions in the aorta and promotes coronary atherosclerosis, more commonly known as hardening of the arteries, according to a study by Yale School of Medicine in Cell Metabolism.

20 Dec 2007

WHO says Pakistan bird flu cluster no cause for alarm as yet

According to an expert at the World Health Organization, the cluster of suspected bird flu cases in Pakistan may be a combination of infections from poultry with limited person-to-person transmission.

19 Dec 2007

Bird flu a worry in Pakistan, Africa and Indonesia

A medical team has been sent to Pakistan by the World Health Organization (WHO) to investigate the latest bird flu outbreak there.

19 Dec 2007

Discovery of new ALS gene

The ALS research team at Umea University in Sweden, working with Dutch and Belgian colleagues, has found new connections between mutations in gene DPP6 and contracting the non-hereditary form of ALS. The findings are being published december 16 in Nature Genetics on the Web.

18 Dec 2007

Overexcited neurons not good for cell health

Neurotransmitters have consequences. They initiate events that are critical to a healthy life, giving us the ability to move, to talk, to breathe, to think. But that's if the neurotransmitters are getting it right and sending proper signals downstream to muscle cells, neurons or other cells.

18 Dec 2007

Researchers spearhead key genome initiative

The complete collection of genes - the genome - of a moss has been sequenced, providing scientists an important evolutionary link between single-celled algae and flowering plants.

17 Dec 2007

Men unaware of their cancer risk when female relatives test positive for BRCA mutation

Men whose mothers, sisters or daughters test positive for a cancer-causing gene mutation also have an increased risk of developing the disease but are unaware of that risk.

17 Dec 2007

Study uncovers clues to cystic fibrosis gene dysfunction and gastrointestinal disease

A new study by researchers at Hasbro Children's Hospital, the pediatric division of Rhode Island Hospital, and Mount Sinai Hospital, New York, offers new insight into the role that the cystic fibrosis gene plays in the development of gastrointestinal disease.

14 Dec 2007

Same genetic machinery generates skin color evolution in fish and humans

When humans began to migrate out of Africa about 100,000 years ago, their skin color gradually changed to adapt to their new environments.

14 Dec 2007

Why the switch stays on

Cellular processes, such as when to multiply, are often regulated by switches that control the frequency and timing of interactions between proteins.

13 Dec 2007

Great-grandparent of all the cells of the blood identified

Researchers at the Stanford University School of Medicine have isolated a human blood cell that represents the great-grandparent of all the cells of the blood, a finding that could lead to new treatments for blood cancers and other blood diseases.

13 Dec 2007

Reprogrammed human adult stem cells rescue diseased muscle in mice

Scientists report that adult stem cells isolated from humans with muscular dystrophy can be genetically corrected and used to induce functional improvement when transplanted into a mouse model of the disease.

13 Dec 2007

Likelihood of falling pregnant steadily decreases the fatter a woman is

A new study of obesity and the probability of pregnancy has shown that a woman's chances of a spontaneous pregnancy steadily decrease the fatter she is.

13 Dec 2007

Most carriers of Fanconi anemia genes are not at a higher risk of cancer

For almost 50 years, Fanconi anemia has been associated with leukemia. Not just among those who have the genetic disorder but among their family members, whose genes, they were told, made them highly susceptible to a variety of malignancies.

13 Dec 2007

Losses of long-established genes contribute to human evolution

While it is well understood that the evolution of new genes leads to adaptations that help species survive, gene loss may also afford a selective advantage.

13 Dec 2007

Researchers advance stem cell gene therapy

Ireland Cancer Center of University Hospitals Case Medical Center researchers have recently made great strides in stem cell gene therapy research by transferring a new gene to cancer patients, via their own stem cells, with the ultimate goal of being able to use stronger chemotherapy treatment with less severe side effects.

13 Dec 2007