Genetics News and Research

Latest Genetics News and Research

Researchers develop promising new gene network analysis method

Compared with a long-used linear model, a correlation-based statistical method is a more reliable way to map complex gene interactions and pinpoint genes that may be potential cancer treatment targets, according to new Brown University research.

8 May 2005

Suspect gene may increase susceptibility to anxiety and depression

People with the depression-linked gene variant showed less gray matter and weaker connections in the mood-regulating circuit. How well the circuit was connected accounted for nearly 30 percent of their anxious temperament

8 May 2005

Chronic kidney disease linked to a single gene mutation

New research in the US has found that a mutation in a single gene causes a form of chronic kidney disease.

5 May 2005

Scientists take aim at virulent bacteria by decoding machinery of key control enzyme

By deciphering the ingenious mechanism used by a particular enzyme to modify bacterial chromosome chemistry, scientists have come a step closer to designing a new kind of drug that could stop virulent bacterial infections in their tracks. Their research will be published in the May 6 issue of the journal Cell.

5 May 2005

Mosaic Analysis with Double Markers (MADM) - A powerful new tool to study diseases and genetics

A powerful laboratory technique used by fruit fly geneticists for more than a decade is now available to scientists studying genes and diseases in mice.

5 May 2005

After surgery check colon tumors for signs of syndrome, study suggests

A new study suggests that, after surgery, all colon tumors should be tested to learn if the patient may have an inherited syndrome that carries an extremely high risk of cancer. It also suggests that this prescreening can be done using a relatively inexpensive microscopy test already used in hospital pathology laboratories.

5 May 2005

Neutrophils dictate whether our immune system will permit or prevent bacterial infections

New research on a bacterium that can survive encounters with specific immune system cells has strengthened scientists' belief that these plentiful white blood cells, known as neutrophils, dictate whether our immune system will permit or prevent bacterial infections.

5 May 2005

Nephrogenic Syndrome of Inappropriate Antidiuresis - a new genetic disease

Two infant boys whose bodies were overloaded with excess fluid have led UCSF pediatricians to the discovery of a new genetic disease. In the process, they have discovered a rare type of mutation where different substitutions in a single amino acid cause two different, opposite genetic disorders.

4 May 2005

Study reveals new approach to Huntington's disease

Scientific theory holds that Huntington's disease (HD) is caused by a mutant protein that arises within brain cells and kills them, triggering the genetic neurological disorder. Now a new UCLA Neuropsychiatric Institute study reveals the first strong evidence that the mutant protein also elicits toxic interactions from neighboring cells to provoke the fatal brain disorder. The May 5 edition of Neuron reports the findings.

4 May 2005

Pharmacogenomics used to treat inherited kidney disorder of children

Mayo Clinic researchers have used pharmacogenomics to develop a test and treatment for an inherited kidney disorder that can cause organ failure in children and young adults.

4 May 2005

Specific variants of genes predict bleeding after heart surgery

Duke University Medical Center researchers have found that the presence of specific variants of genes that control clotting and the contractility, or "tone," of blood vessels can double the ability of physicians to predict those heart surgery patients at greatest risk of bleeding after surgery.

4 May 2005

Genetically modified rice in China benefits farmers' health

Farmers growing genetically modified rice in field trials in China report higher crop yields, reduced pesticide use and fewer pesticide-related health problems, according to a study by researchers in China and at the University of California, Davis, and Rutgers University.

4 May 2005

Newly identified fly genes provide clue to tumour growth

Researchers from the Oxford University Department of Human Anatomy and Genetics have found a new class of genes that are critical for cell growth and may be involved in the uncontrolled growth that takes place in cancer. The discovery could provide a key to future tumour therapies.

4 May 2005

MRI study shows hormone leptin alters brains, may ease cravings of people with obesity gene

A magnetic resonance imaging (MRI) study finds that the protein hormone leptin promotes development of gray matter in the part of the brain that regulates cravings and the ability to monitor personal behavior.

4 May 2005

Mutated gene causes serious heart disease in newborns

The research group of professor Manfred Kilimann at the Department of Cell and Molecular Biology has elucidated the genetic cause of a severe heart disease in newborn children. This result will be published in the June issue of the American Journal of Human Genetics this week.

3 May 2005

Study identifies possible marker for efficacy of gefitinib in lung cancer patients

Patients with advanced non–small-cell lung cancer (NSCLC) whose tumor cells contain extra copies of the epidermal growth factor receptor (EGFR) gene may be more likely to respond to the drug gefitinib (Iressa), and this high gene copy number may be an effective predictor of gefitinib efficacy, according to a new study in the May 4 issue of the Journal of the National Cancer Institute.

3 May 2005

Researchers make new advances in determining the structure of all possible DNA sequences

Oregon State University researchers have made significant new advances in determining the structure of all possible DNA sequences – a discovery that in one sense takes up where Watson and Crick left off, after outlining in 1953 the double-helical structure of this biological blueprint for life.

3 May 2005