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Study broadens understanding of how cells regulate X chromosome inactivation

In a paper published in the Nov. 21 issue of Cell, a team led by Mauro Calabrese, a postdoctoral fellow at the University of North Carolina in the lab of Terry Magnuson, chair of the department of genetics and member of the UNC Lineberger Comprehensive Cancer Center, broadens the understanding of how cells regulate silencing of the X chromosome in a process known as X-inactivation.

28 Nov 2012

Intramyocardial injection of organ-derived stem cells after AMI improves left ventricle function

A study published in the current issue of Cell Transplantation, now freely available on-line, has found that when mesenchymal cells derived from skeletal muscle (SM-MSCs) or adipose tissue (ADSCs) were injected into the heart muscle (myocardium) of separate groups of laboratory rats that had suffered a myocardial infarction, rats in both groups experienced significantly improved left ventricle function and smaller infarct size after cell therapy.

28 Nov 2012

Gadd45g protein essential in initiating development of male sex organs

Scientists at the Institute of Molecular Biology (IMB) in Mainz have identified a protein essential for initiating the development of male sex organs. Loss of the gene Gadd45g results in complete sex reversal of male mice, making them appear female.

28 Nov 2012

Carnosic acid promotes eye health

Herbs widely used throughout history in Asian and early European cultures have received renewed attention by Western medicine in recent years. Scientists are now isolating the active compounds in many medicinal herbs and documenting their antioxidant and anti-inflammatory activities. In a study published in the journal Investigative Ophthalmology & Visual Science, Stuart A. Lipton, M.D., Ph.D. and colleagues at Sanford-Burnham Medical Research Institute (Sanford-Burnham) report that carnosic acid, a component of the herb rosemary, promotes eye health.

28 Nov 2012

High-resolution real-time images show how nerves may be damaged during earliest stages of MS

High-resolution real-time images show in mice how nerves may be damaged during the earliest stages of multiple sclerosis. The results suggest that the critical step happens when fibrinogen, a blood-clotting protein, leaks into the central nervous system and activates immune cells called microglia.

28 Nov 2012

Study finds chemicals linked to cancer, learning problems and hormone disruption

A peer-reviewed study of the largest number of flame retardants ever tested in homes found that most houses had levels of at least one flame retardant that exceeded a federal health guideline. The journal Environmental Science & Technology will publish the study online on November 28, 12:01am Eastern.

28 Nov 2012

Abdominal and visceral fat detrimental to bone strength in obese men

Visceral, or deep belly, obesity is a risk factor for bone loss and decreased bone strength in men, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA).

28 Nov 2012

Short instance of moderate exercise improves memories in older adults with MCI

A short burst of moderate exercise enhances the consolidation of memories in both healthy older adults and those with mild cognitive impairment, scientists with UC Irvine's Center for the Neurobiology of Learning & Memory have discovered.

28 Nov 2012

THI to launch saliva-based TeloTest in first quarter 2013

Telome Health, Inc. (THI), developer of the TeloTest diagnostic test that measures average telomere length, announces the planned launch of the saliva-based TeloTest in the first quarter of 2013. Related telomere tests, including percentage of short telomeres, would follow.

28 Nov 2012

African-American patients with CAD have low thoracic fat volume than Caucasians

While obesity is considered a cardiovascular risk factor, a study presented today at the annual meeting of the Radiological Society of North America (RSNA) showed that African-American patients with coronary artery disease (CAD) have much less fat around their hearts compared to Caucasian patients.

28 Nov 2012

ABCA3 gene associated with respiratory distress syndrome in babies

Some infants are more susceptible to potentially life-threatening breathing problems after birth, and rare, inherited DNA differences may explain why, according to research at Washington University School of Medicine in St. Louis.

28 Nov 2012

Topically applied simvastatin enhances wound recovery in diabetic mice

Delayed wound healing is a major complication of diabetes because the physiological changes in tissues and cells impair the wound healing process. This can result in additional disease outcomes such as diabetic foot ulcer, a significant cause of morbidity in the growing population of diabetic patients. A new study has found that topically applied simvastatin accelerates wound healing in diabetic mice, suggesting important implications for humans with diabetes.

28 Nov 2012

Study identifies gene signature associated with resistance to cancer therapies

Agendia, an innovative molecular cancer diagnostics company and leader in personalized medicine, today announced the publication in the November 21st issue of the prestigious scientific journal "Cell" of a study that identifies a gene signature that is associated with resistance to a broad range of cancer therapies in multiple cancer types.

28 Nov 2012

Amarantus demonstrates excellent diffusion profile of MANF in the striatum of rat brains

Amarantus BioSciences, Inc., a biotechnology company developing new disease-modifying treatments and diagnostics for Parkinson's disease and Traumatic Brain Injury centered on its proprietary anti-apoptosis therapeutic protein MANF, today announced that the Company has successfully completed experiments demonstrating that MANF has an excellent diffusion profile in the striatum of rat brains.

27 Nov 2012

Kinexus releases new antibody microarray kit

Kinexus Bioinformatics Corporation, a world leader in functional proteomics research, announced today the release of its first Kinex antibody microarray kit with its latest generation KAM-850 chip.

27 Nov 2012

Arginase might play a role in development of cardiovascular disease in type II diabetics

In a new study published in the scientific journal Circulation, scientists at Karolinska Institutet and Karolinska University Hospital in Sweden show that an enzyme called arginase might have a key part to play in the development of cardiovascular disease in patients who already have type II diabetes.

27 Nov 2012

Neurofibromatosis-1 may increase risk of breast cancer in women

New Johns Hopkins research showing a more than four-fold increase in the incidence of breast cancer in women with neurofibromatosis-1 (NF1) adds to growing evidence that women with this rare genetic disorder may benefit from early breast cancer screening with mammograms beginning at age 40, and manual breast exams as early as adolescence.

27 Nov 2012

Specific combination of two pharmaceutical substances show promise against multiple sclerosis

A new substance class for the treatment of multiple sclerosis and other neurodegenerative diseases now promises increased efficacy paired with fewer side effects. To achieve this, a team of scientists under the leadership of Prof. Gunter Fischer and Dr. Frank Striggow have combined two already approved pharmaceutical substances with each other using a chemical linker structure.

27 Nov 2012

Orbitofrontal cortex responsible for decisions made on spur of the moment

An area of the brain called the orbitofrontal cortex is responsible for decisions made on the spur of the moment, but not those made based on prior experience or habit, according to a new basic science study from substance abuse researchers at the University of Maryland School of Medicine and the National Institute on Drug Abuse (NIDA). Scientists had previously believed that the area of the brain was responsible for both types of behavior and decision-making.

27 Nov 2012

Weill Cornell Medical College dean wins Argentina's Dr. Luis Federico Leloir Prize

Dr. Laurie H. Glimcher, the Stephen and Suzanne Weiss Dean of Weill Cornell Medical College and provost for medical affairs of Cornell University, is a winner of the Dr. Luis Federico Leloir Prize of International Cooperation in Science, Technology and Innovation from Argentina's Ministry of Science, Technology and Productive Innovation.

27 Nov 2012