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Study finds long-term exposure to progesterone may lead to growth of tumors

Scientists at Michigan State University have found exposure to the hormone progesterone activates genes that trigger inflammation in the mammary gland.

20 Aug 2009

New report by NSF & Trucost studies GHG emissions and carbon footprints of chemical sector companies and others.

NSF International, a public health and safety organization, and Trucost Plc, a global provider of environmental data and analysis, today announced the availability of a new report entitled, Carbon Emissions – Measuring the Risks.

20 Aug 2009

Research reveals effectiveness of carvedilol in preventing variceal hemorrhage

Patients with cirrhosis are at risk for developing portal hypertension that can lead to the formation, dilation, and rupture of esophageal varices. The annual incidence of esophageal varices is approximately 5% and one third of those will bleed.

20 Aug 2009

Study reveals long term benefits of swimming for children with asthma

Research has shown that swimming aids asthma symptoms in children. The activity has been proven to be an effective non-pharmacological intervention for children and adolescents, according to a study in Respirology published by Wiley-Blackwell.

20 Aug 2009

Study unveils detrimental effects of high-dose ursodeoxycholic acid on patients with PSC

Primary sclerosing cholangitis (PSC) is an uncommon chronic liver disease characterized by progressive inflammation and destruction of the bile ducts. The disease progresses slowly, usually leading to biliary cirrhosis, portal hypertension and liver failure over a 10-15 year period. PSC is a common cause of adult cholestatic liver diseases and a primary source behind many of the liver transplantations in U.S. adults. At least 70% of PSC cases are associated with chronic inflammatory bowel disease (IBD), usually ulcerative colitis. Currently, there is no cure for PSC and prospective treatments remain ineffective.

20 Aug 2009

Low income women less likely to be screened for cancer in Ontario

Less than half of Ontario women with abnormal Pap tests receive recommended and potentially life-saving follow-up care, according to a new women's health study by researchers at St. Michael's Hospital and the Institute for Clinical Evaluative Sciences (ICES). What's more, low-income women are less likely to be screened for cancer compared to their high-income counterparts.

20 Aug 2009

Steroid hormones found to affect gene activity

Intermittent signaling by steroid hormones can affect the way genes are expressed in rodents, according to research by scientists at the University of Bristol and the National Cancer Institute (NCI), USA. This work has major implications for understanding how steroids work and opens novel avenues for new therapies.

19 Aug 2009

Nano-bio material kills cancer cells, leaves healthy cells in unharmed

Scientists from the U.S. Department of Energy's (DOE) Argonne National Laboratory and the University of Chicago's Brain Tumor Center have developed a way to target brain cancer cells using inorganic titanium dioxide nanoparticles bonded to soft biological material.

19 Aug 2009

New tool for scientists - light used to manipulate cell movement

One of the biggest challenges in scientists' quest to develop new and better treatments for cancer is gaining a better understanding of how and why cancer spreads. Recent breakthroughs have uncovered how different cellular proteins are turned 'on' or 'off' at the molecular level, but much remains to be understood about how protein signaling influences cell behavior.

19 Aug 2009

Newly discovered anti-aging gene linked to high blood pressure

Researchers at the University of Oklahoma Health Sciences Center have shown the first link between a newly discovered anti-aging gene and high blood pressure. The results, which appear this month in the journal Hypertension, offer new clues on how we age and how we might live longer.

19 Aug 2009

Researchers find connection between eye disease and arginase

Elevated levels of the enzyme arginase contribute to vascular eye damage and Medical College of Georgia researchers say therapies to normalize its levels could halt progression of potentially blinding diseases such as diabetic retinopathy.

19 Aug 2009

The Parkinson's Disease Foundation and the Davis Phinney Foundation jointly fund new study

The Davis Phinney Foundation, a non-profit organization dedicated to improving the lives of people with Parkinson's disease (PD) today, announced that it has awarded four Parkinson's disease research centers with support to conduct a landmark study on the long-term changes in quality of life and mobility that occur in people with PD. The results of this research will help to advance the understanding of how interventions, such as exercise, impact changes in quality of life and mobility over the course of the disease.

19 Aug 2009

Depression causes reduced function in the reward center of brain

Clinically depressed individuals are less capable of finding pleasure in activities they previously enjoyed, a recent study has proven. Research featured in the August 26 issue of the NeuroReport shows reduced brain function in the reward center of the brain in depressed individuals, when compared to healthy subjects.

19 Aug 2009

Genetic mutation that helps regulate high blood pressure is a cause of inherited kidney disease

The discovery provides insight into a protein, renin, that is important in blood pressure regulation, and reveals the cause of one type of inherited kidney disease occurring in adults and children, said co-investigator Anthony Bleyer, M.D., professor of internal medicine-nephrology at the School of Medicine.

19 Aug 2009

Discovery of mechanism that allows hepatitis C virus to remain in the body for decades

A study published in the Proceedings of the National Academy of Sciences (PNAS) shows that the virus blocks the actions of a specific ion channel in the cell membrane that would usually trigger apoptosis - the cell's self-destruct programme - and in doing so, has evolved another way of protecting itself from being eliminated from the body.

19 Aug 2009

Novavax reports positive preclinical results for H1N1 influenza VLP vaccine

Novavax, Inc. (Nasdaq: NVAX) announced positive preclinical results with Novavax's 2009 novel H1N1 influenza virus-like particle (VLP) vaccine. The study, conducted by scientists from Novavax and the Centers for Disease Control and Prevention (CDC) based in Atlanta, GA, under a collaborative agreement, represents the first efficacy report of a 2009 novel H1N1 vaccine in ferrets. The ferret model is widely accepted to be the most appropriate animal model for evaluating influenza disease and vaccines. Novavax scientists designed the vaccine using recombinant virus like particles (VLP) technology against an H1N1 virus strain (A/California/04/2009) isolated in the beginning of the 2009 H1N1 outbreak.

19 Aug 2009

Research study highlights the biological importance of Vitamin D in humans and other primates

A new study has concluded that one key part of the immune system, the ability of vitamin D to regulate anti-bactericidal proteins, is so important that is has been conserved through almost 60 million years of evolution and is shared only by primates, including humans - but no other known animal species.

19 Aug 2009

Brain's motor and perception regions disconnected in tone-deaf people

Nerve fibers that link perception and motor regions of the brain are disconnected in tone-deaf people, according to new research in the August 19 issue of The Journal of Neuroscience. Experts estimate that at least 10 percent of the population may be tone deaf - unable to sing in tune. The new finding identifies a particular brain circuit that appears to be absent in these individuals.

19 Aug 2009

Researchers reveal new ways to detect the hidden biases of medical research

A study by researchers at the University of Leicester has revealed new ways to spot whether medical research has hidden biases. Writing in the prestigious British Medical Journal, Santiago Moreno and his colleagues demonstrate how to spot 'publication bias' in the reporting of clinical trials which potentially form the basis of Government and NHS health policies.

19 Aug 2009

New understanding on meningitis cause

A specific protein on the surface of a common bacterial pathogen allows the bacteria to leave the bloodstream and enter the brain, initiating the deadly infection known as meningitis. The new finding, which may guide development of improved vaccines to protect those most vulnerable, including young infants and the elderly, is now available online in the Journal of Experimental Medicine.

19 Aug 2009