Genes News and Research

RSS

MRI screening could be cost effective for women with familial risk of breast cancer

Adding magnetic resonance imaging (MRI) to standard breast cancer screening approaches is expensive, though it could be cost effective for a group of women who may not have inherited the breast cancer susceptibility genes, but who have a familial risk of developing the disease.

22 Mar 2012

Alzheimer's may spread through connected neurons

Alzheimer's disease and other forms of dementia may spread within nerve networks in the brain by moving directly between connected neurons, instead of in other ways proposed by scientists, such as by propagating in all directions, according to researchers who report the finding in the March 22 edition of the journal Neuron.

22 Mar 2012

Researchers explain how obscurins suppress breast cancer formation

A new discovery published online in The FASEB Journal may lead to a new tool to help physicians assess breast cancer risk as well as diagnose the disease. In the report, researchers from Johns Hopkins University and the University of Maryland, explain how proteins, called "obscurins," once believed to only be in muscle cells, act as "tumor suppressor genes" in the breast.

22 Mar 2012

Scientists create worm model of back-up telomere repair strategy

Rapidly dividing cancer cells are skilled at patching up damage that would stop normal cells in their tracks, including wear and tear of telomeres, the protective caps at the end of each chromosome.

22 Mar 2012

CBSM intervention can alter tumor-promoting processes in women with breast cancer

A team of researchers led by Michael H. Antoni, director of the Center for Psycho-Oncology Research at the University of Miami (UM) has shown that a stress management program tailored to women with breast cancer can alter tumor-promoting processes at the molecular level. The new study recently published in the journal Biological Psychiatry is one of the first to link psychological intervention with genetic expression in cancer patients.

22 Mar 2012

Two Brandeis researchers receive Canada Gairdner Award

Two distinguished Brandeis researchers, whose long-standing collaboration led to pioneering discoveries about the workings of the biological clock and its role in circadian rhythms, today were awarded the prestigious Canada Gairdner Award, that nation's foremost international scientific honor.

22 Mar 2012

Scans reveal Williams syndrome-associated personality/temperament traits

A personality profile marked by overly gregarious yet anxious behavior is rooted in abnormal development of a circuit hub buried deep in the front center of the brain, say scientists at the National Institutes of Health. They used three different types of brain imaging to pinpoint the suspect brain area in people with Williams syndrome, a rare genetic disorder characterized by these behaviors.

21 Mar 2012

Researchers identify mechanism involved in positioning nuclei in muscle fibres

In order to move, living beings need muscles, and, more specifically, skeletal muscles that are controlled by the nervous system. Skeletal muscles are composed of cylindrical muscle fibres with a multitude of peripheral nuclei. Until now, little was known about the mechanism used to position nuclei on the edge of muscle fibres. A team of French-American researchers has tried to better understand the reasons behind nuclei layout.

21 Mar 2012

Meditation improves ability to cope with stress and increases telomerase activity

Calmly meditating produces exciting, beneficial effects on your body. It can protect your DNA against cancer-promoting genetic developments and free you from everyday stresses and distractions. That's why meditation is one of the most powerful, but often neglected, tools for maintaining optimal health.

21 Mar 2012

Early disruptions in serotonin signaling may contribute to ASD

Early disruptions in serotonin signaling in the brain may contribute to autism spectrum disorder (ASD), and other "enduring effects on behavior," Vanderbilt University researchers report.

21 Mar 2012

DIAN-TTU to receive $4.2M Alzheimer's Association research grant

The Alzheimer's Association announced today the awarding of its largest ever research grant – nearly $4.2 million dollars over four years – to the Dominantly Inherited Alzheimer's Network–Therapeutic Trials Unit (DIAN-TTU), based at Washington University School of Medicine in St. Louis, to enable the program to move forward more quickly with innovative drug and biomarker trials in people with genetically-based, young-onset Alzheimer's disease.

21 Mar 2012

Alzheimer's Association awards $4.2M grant to DIAN-Therapeutic Trials Unit

Washington University School of Medicine in St. Louis has received nearly $4.2 million from the Alzheimer's Association to accelerate the launch of the first clinical trials to prevent the symptoms of Alzheimer's disease.

21 Mar 2012

Closer to effective screening for TB

An Australian scientist will bring effective screening for tuberculosis a step closer with his latest study in Vietnam- where he now lives and works.

21 Mar 2012

Obesity gene mutation identified in mice

A new study has found why a mutation in a particular gene can lead to obesity. Mouse experiments suggested the body's message to “stop eating” was blocked if the animals had the mutation. The study, published in Nature Medicine, said the brain's response to appetite hormones was being disrupted.

20 Mar 2012

Study determines why blood oranges develop anthocyanin pigments

The anthocyanin pigments that provide the "blood" color of blood oranges are not produced in significant amounts unless the fruit is exposed to cold conditions during its development or post-harvest. No cold exposure means poor anthocyanin production and the loss of the entire crop. This means that blood oranges can be grown in many areas of the world, but they are most likely to be exposed to the correct temperature conditions in only a few regions, including their major area of production in Sicily.

20 Mar 2012

Mayo Clinic researchers train mouse immune systems to eradicate skin cancer from within

Mayo Clinic researchers have trained mouse immune systems to eradicate skin cancer from within, using a genetic combination of human DNA from melanoma cells and a cousin of the rabies virus. The strategy, called cancer immunotherapy, uses a genetically engineered version of the vesicular stomatitis virus to deliver a broad spectrum of genes derived from melanoma cancer cells directly into tumors.

20 Mar 2012

New antibiotic shows promise against bovine mastitis

Food-borne diseases might soon have another warrior to contend with, thanks to a new molecule discovered by chemists at the University of Illinois. The new antibiotic, an analog of the widely used food preservative nisin, also has potential to be a boon to the dairy industry as a treatment for bovine mastitis.

20 Mar 2012

Hedgehog and mTOR pathway are active in esophageal cancer

Identification of a non-traditional pathway for spiriting a cancer-promoting protein into the cell nucleus points to a possible combination therapy for esophageal cancer and indicates a mechanism of resistance for new drugs that attack the Hedgehog pathway.

20 Mar 2012

Circadian rhythms control production of metabolites

By analyzing the hundreds of metabolic products present in the liver, researchers with the UC Irvine Center for Epigenetics & Metabolism have discovered that circadian rhythms - our own body clock - greatly control the production of such key building blocks as amino acids, carbohydrates and lipids.

20 Mar 2012

Study identifies new hypervariable regions in human gut viruses

A growing body of evidence underscores the importance of human gut bacteria in modulating human health, metabolism, and disease. Yet bacteria are only part of the story. Viruses that infect those bacteria also shape who we are. Frederic D. Bushman, PhD, professor of Microbiology at the Perelman School of Medicine at the University of Pennsylvania, led a study published this month in the Proceedings of the National Academy of Sciences that sequenced the DNA of viruses -- the virome -- present in the gut of healthy people.

20 Mar 2012