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NRG1 gene plays an important role in cannabis dependence

A paper by Shizhong Han and colleagues in the current issue of Biological Psychiatry implicates a new gene in the risk for cannabis dependence. This gene, NRG1, codes for the ErbB4 receptor, a protein implicated in synaptic development and function.

12 Oct 2012

Dana-Farber expert offers tips to reduce risk of breast cancer

According to the American Cancer Society, about one in eight women will develop breast cancer in her lifetime. This year, nearly 40,000 women in the United States will die from the disease.

12 Oct 2012

Study identifies need for better definitions and diagnostic tools for sports head injuries

In recent years it has become clear that athletes who experience repeated impacts to the head may be at risk of potentially serious neurological and psychiatric problems. But a study of sports programs at three major universities, published in the October 2 Journal of Neurosurgery, finds that the way the injury commonly called concussion is usually diagnosed - largely based on athletes' subjective symptoms - varies greatly and may not be the best way to determine who is at risk for future problems.

11 Oct 2012

Transplanted neural stem cells able to produce new myelin in children with PMD

A Phase I clinical trial led by investigators from the University of California, San Francisco and sponsored by Stem Cells Inc., showed that neural stem cells successfully engrafted into the brains of patients and appear to have produced myelin.

11 Oct 2012

Clear link between neurotensin and CVD, type 2 diabetes and breast cancer

"It was surprising to find such a clear link to the risk of type 2 diabetes and cardiovascular disease as well as to breast cancer. Obesity is a common risk factor for all three conditions, but the connection with neurotensin is not explained by obesity or other known risk factors", says Professor Olle Melander from the Department of Clinical Sciences at Lund University, who is also a consultant at Sk-ne University Hospital.

11 Oct 2012

NCI identifies method by which cancerous mRNA escapes the body's safeguards

In innumerable spy movies, the hero or a villain imprints a key in clay in order to later make an exact copy. In the body, the clay is messenger RNA, or mRNA, which imprints a gene and transfers the plans to a ribosome, where the mRNA's code is manufactured into a protein - the shady shop where the clay imprint becomes a key.

11 Oct 2012

TSRI scientists identify new gene variants closely associated with bipolar disorder

Scientists from the Florida campus of The Scripps Research Institute (TSRI) have identified small variations in a number of genes that are closely linked to an increased risk of bipolar disorder, a mental illness that affects nearly six million Americans, according to the National Institute of Mental Health.

11 Oct 2012

Motor and communication skills linked in infants at risk for autism

Study findings suggest that siblings of children with autistic spectrum disorders who exhibit early delay in motor skill development often experience communication difficulty in early childhood.

10 Oct 2012

UCSF project to explore mystery behind advanced prostate cancer

Many men survive prostate cancer, but thousands of others -- whose cancer spreads -- inevitably develop resistance to even the most promising treatments, leaving them with few medical options and a dwindling span of life.

10 Oct 2012

Spanish and British scientists design new blood test to identify aggressive prostate cancer

Scientists from the Spanish National Cancer Research Centre (CNIO) in Madrid, along with British colleagues from the Institute for Cancer Research (ICR) and the Royal Marsden NHS Foundation Trust, have developed a test that studies genetic patterns in blood cells to detect advanced-stage prostate cancer.

10 Oct 2012

Modifying factors may be responsible for non-diabetic kidney disease in African-Americans

The high rate of non-diabetic kidney disease in African-Americans is strongly associated with variations in a particular gene. Yet, not everyone who inherits these variations develops the disease.

10 Oct 2012

Grp94 chaperone protein can interfere with clearance of myocilin from cells

The chaperone protein Grp94 can interfere with the clearance of another protein known to cause the glaucoma when mutated, a new study led by researchers at the University of South Florida has found. Using a cell model, the researchers also demonstrated that a new specific inhibitor of Grp94 facilitates clearance of the genetically-defective protein, called myocilin, from cells.

10 Oct 2012

RMND1 gene mutations responsible for severe neurodegenerative disorders

Scientists at the Montreal Neurological Institute and Hospital - The Neuro, McGill University working with a team at Oxford University have uncovered the genetic defect underlying a group of rare genetic disorders.

10 Oct 2012

Navigating the Labyrinth of Traumatic Brain Injury to Discover a Secondary Neurological Condition

Working with individuals with traumatic brain injury (TBI) every day, I see the debilitating effects and long-term struggles firsthand.

9 Oct 2012

T2R38 taste receptor regulates immune defense of the human upper airway

The immune system protects the upper respiratory tract from bacterial infections, but the cues that alert the immune system to the presence of bacteria are not known. In this issue of the Journal of Clinical Investigation, researchers led by Noam Cohen at the University of Pennsylvania demonstrated that the bitter taste receptor T2R38 regulates the immune defense of the human upper airway.

9 Oct 2012

Study sheds light on fundamental cellular process

Scientists at the Gladstone Institutes have mapped the precise frequency by which genes get turned on across the human genome, providing new insight into the most fundamental of cellular processes-and revealing new clues as to what happens when this process goes awry.

9 Oct 2012

BDNF deletion plays a critical role in psychiatric disease and obesity

McGill researchers have identified a small region in the genome that conclusively plays a role in the development of psychiatric disease and obesity. The key lies in the genomic deletion of brain-derived neurotrophic factor, or BDNF, a nervous system growth factor that plays a critical role in brain development.

9 Oct 2012

New blood test can read genetic changes in prostate cancer

Scientists have designed a blood test that reads genetic changes like a barcode - and can pick out aggressive prostate cancers by their particular pattern of gene activity.

9 Oct 2012

Genetic basis of uterine fibroids uncovered

A mutation located near the fatty acid synthase gene is associated with an increased predisposition for uterine leiomyomata or fibroids, suggest US study findings.

8 Oct 2012

Researchers discover smallest and fastest-known RNA switches

A University of Michigan biophysical chemist and his colleagues have discovered the smallest and fastest-known molecular switches made of RNA, the chemical cousin of DNA. The researchers say these rare, fleeting structures are prime targets for the development of new antiviral and antibiotic drugs.

8 Oct 2012