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Study identifies genetic variants giving rise to differences in metabolism

Common genetic polymorphisms induce major differentiations in the metabolic make-up of the human population, according to a paper published November 28 in the open-access journal PLoS Genetics.

28 Nov 2008

Sexual reproduction and evolution

The utility of sex, according to an intriguing new theory of evolutionary biology, may be its ability to promote genes that play well with many other partners rather than those that shine with just one specific set of genes.

24 Nov 2008

DNA variations of serotonin transporter gene can influence drinking intensity

The brain's serotonergic system plays an important role in alcohol preference and consumption.

20 Nov 2008

Genetic screening no better than traditional risk factors for predicting type 2 diabetes

Screening for a panel of gene variants associated with the risk for type 2 diabetes can identify adults at risk for the disorder but is not significantly better than assessment based on traditional risk factors such as weight, blood pressure and blood sugar levels.

19 Nov 2008

Systems biology brings hope of speeding up drug development

Almost every day brings news of an apparent breakthrough against cancer, infectious diseases, or metabolic conditions like diabetes, but these rarely translate into effective therapies or drugs, and even if they do clinical development usually takes well over a decade.

19 Nov 2008

Researchers unravel mysteries of brain aneurysms

Yale researchers have taken the first critical steps in unraveling the mysteries of brain aneurysms, the often fatal rupturing of blood vessels that afflicts 500,000 people worldwide each year and nearly killed Vice President-elect Joseph Biden two decades ago.

10 Nov 2008

Variations of MYH9 gene help explain high rate of kidney disease in African Americans

Several recent studies have suggested that common gene variations may be responsible for much of the elevated risk of kidney disease in African Americans.

8 Nov 2008

Interaction between gene variants may alter brain function in schizophrenia

A collaborative study led by investigators from Massachusetts General Hospital (MGH) is giving what may be the first look at how interactions between genes underlie a key symptom of schizophrenia, impaired working memory.

8 Nov 2008

Just one mutated SMAD4 allele is enough to cause cancer

Tumour suppressor genes do not necessarily require both alleles to be knocked out before disease phenotypes are expressed.

4 Nov 2008

Genetic screening effective for initial HIV treatment

A major study from a team of researchers from Weill Cornell Medical College and Massachusetts General Hospital has found that a recent change to HIV-treatment guidelines recommending genetic screening is cost-effective under certain conditions. The new recommendation suggests conducting a genetic screening test prior to prescribing the drug abacavir, one of the preferred first-line drugs for the treatment for HIV-infected adults.

17 Sep 2008

Scientists identify kidney failure susceptibility gene

Scientists at Johns Hopkins schools of Public Health and Medicine have, for the first time, identified variants in the gene MYH9 that are associated with increased risk for non-diabetic end stage renal disease (ESRD,) which is the near-loss of kidney function leading to either dialysis of transplant. MYH9, located on the 22 chromosome, is the first gene identified for common forms of kidney disease.

15 Sep 2008

Gleevec receives FDA priority review for gastrointestinal stromal tumors after surgery

Novartis has announced that Gleevec (imatinib mesylate) tablets, (known as Glivec (imatinib) outside the US, Canada and Israel), has been granted priority review status by the US Food and Drug Administration (FDA) as the first therapy to be reviewed for use after surgery in kit-positive gastrointestinal stromal tumors (GIST).

27 Aug 2008

COMT gene variation affects fear processing, anxiety

Inborn differences may help explain why trauma gives some people bad memories and others the nightmare of post-traumatic stress. Scientists in Germany and the United States have reported evidence linking genes to anxious behavior. The findings appear in the August issue of Behavioral Neuroscience, published by the American Psychological Association.

10 Aug 2008

Genetic biomarker linked to subcutaneous growth hormone dose-response

The interindividual variability of response to subcutaneously applied protein-based drugs remains poorly understood. However, defining genetic markers that can be associated with biological effects of such drugs may improve the understanding of individual variability of response and even drug resistance.

6 Aug 2008

Viral recombination another way HIV fools the immune system

When individuals infected with HIV become infected with a second strain of the virus, the two viral strains can exchange genetic information, creating a third, recombinant strain of the virus. It is known that the presence of multiple viral strains, called superinfection, frequently leads to a loss of immune control of viral levels.

21 Jul 2008

New tool identifies genes affecting health

A new tool which makes it possible to extract information about an individual's health from genotypes in a fraction of a second, has been developed by an academic at the University of Southampton.

9 Jul 2008

Clinical Data secures European patent for key multi-drug resistance gene

Clinical Data, Inc. has announced that the European Patent Office has granted Patent No. 1232260 to Bernried, Germany-based Epidauros Biotechnologie AG, a wholly-owned subsidiary of Clinical Data, relating to the use of a genetic variant, or biomarker, of the gene MDR1 (also known as ABCB1), which encodes P-glycoprotein (PGP).

26 Jun 2008