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Keeping at-risk cells from developing cancer

Researchers at Johns Hopkins have discovered that cancers arising from epigenetic changes - in this case the inappropriate activation of a normally silent gene - develop by becoming addicted to certain growth factors.

10 Dec 2007

Human evolution in genetic fast lane

Countering a common theory that human evolution has slowed to a crawl or even stopped in modern humans, a new study examining data from an international genomics project describes the past 40,000 years as a time of supercharged evolutionary change, driven by exponential population growth and cultural shifts.

10 Dec 2007

Genetic evidence that human evolution is speeding up

Researchers discovered genetic evidence that human evolution is speeding up – and has not halted or proceeded at a constant rate, as had been thought – indicating that humans on different continents are becoming increasingly different.

10 Dec 2007

Study shows how mutations in the BRCA1 gene lead to breast cancer

An international team of researchers led by Columbia University Medical Center's Herbert Irving Comprehensive Cancer Center and Sweden's Lund University has, for the first time, revealed how mutations in the BRCA1 gene lead to breast cancer.

10 Dec 2007

Reprogrammed stem cells cure sickle cell anaemia

Scientists in the U.S. have made a breakthrough in the fight against sickle cell anaemia, a blood disease caused by a defect in a single gene.

9 Dec 2007

Genetic markers for mental illness

Researchers have discovered natural genetic differences that might help predict the most effective antipsychotic drugs for particular patients with mental disorders such as schizophrenia, Parkinson's and drug addiction.

4 Dec 2007

New genetic markers found that increase a person's risk for schizophrenia

Scientists at the Zucker Hillside Hospital campus of the Feinstein Institute for Medical Research have identified nine genetic markers that can increase a person's risk for schizophrenia.

4 Dec 2007

Genomic disorders occur more frequently than previously thought

Research published today in Nature Genetics shows that some rearrangements of the human genome occur more frequently than previously thought.

3 Dec 2007

Genetic testing over the net a waste of money say experts

According to a panel of top British scientists people who buy genetic tests from private companies are usually wasting their money.

3 Dec 2007

First map of imprinted genes in human genome

Scientists at Duke University have created the first map of imprinted genes throughout the human genome, and they say a modern-day Rosetta stone – a form of artificial intelligence called machine learning – was the key to their success.

2 Dec 2007

DNA methylation shown to promote development of colon tumors

Damaged or defective genes have long been known to be the cause of some cancers.

2 Dec 2007

New genetic findings on malaria parasite

The malaria parasite has been studied for decades, but surprisingly, little is known about how it behaves in humans to cause disease.

29 Nov 2007

Europe to tackle brain disorder research by linking industry, academia

Attempts to cure brain-related disorders have proved less successful than therapies for other major conditions such as heart cancer, even though just as many people suffer from them.

27 Nov 2007

Australian researcher heralds a golden age in biomedical science

A senior University of Sydney researcher has heralded a 'golden age' of modern biochemistry and molecular biology brought about by our complete sequencing of the human genome.

27 Nov 2007

Scientists examine eons-old water for microorganisms

Researchers from the University of Delaware and the University of California at Riverside have thawed ice estimated to be at least a million years old from above Lake Vostok, an ancient lake that lies hidden more than two miles beneath the frozen surface of Antarctica.

27 Nov 2007

Flip-flopping gene expression can be advantageous

One gene for pea pod color generates green pods while a variant of that gene gives rise to the yellow-pod phenotype, a feature that helped Gregor Mendel, the 19th century Austrian priest and scientist, first describe genetic inheritance.

27 Nov 2007

Mutant mice could provide genetic clues on human sight loss

Mutant mice could provide genetic clues to understanding incurable human sight loss resulting from retinal degeneration.

22 Nov 2007

First genome sequence of XDR strain of the bacterium Mycobacterium tuberculosis

An international collaboration led by researchers in the US and South Africa today announced the first genome sequence of an extensively drug resistant (XDR) strain of the bacterium Mycobacterium tuberculosis, one linked to more than 50 deaths in a recent tuberculosis (TB) outbreak in KwaZulu-Natal, South Africa.

21 Nov 2007

Scientists identify key nerve navigation pathway

Newly launched nerve cells in a growing embryo must chart their course to distant destinations, and many of the means they use to navigate have yet to surface.

21 Nov 2007

There is a new twist on the question of how biological clocks work

In recent years, scientists have discovered that biological clocks help organize a dizzying array of biochemical processes in the body. Despite a number of hypotheses, exactly how the microscopic pacemakers in every cell in the body exert such a widespread influence has remained a mystery.

21 Nov 2007