Body

Big stride in understanding PP1, the ubiquitous enzyme

PROVIDENCE, R.I. [Brown University] — In the Proceedings of the National Academy of Sciences, a team of scientists at Brown University reports a major step forward in determining the specific behavior of the ubiquitous enzyme PP1 implicated in a wide range of diseases including cancer.

Mount Sinai study points to new biological mechanisms, treatment paradigm for kidney disease

New York, NY – Prevention and reversal of chronic kidney disease is an urgent public health need. The disease affects 1 in 10 Americans, is debilitating and deadly, and existing drugs, at best, offer only mild delay in progression to end-stage kidney failure. New research led by Icahn School of Medicine at Mount Sinai investigators has uncovered abnormal molecular signaling pathways from disease initiation to irreversible kidney damage, kidney failure, and death.

Researchers identify 'carbohydrates in a coal mine' for cancer detection

Researchers at New York University and the University of Texas at Austin have discovered that carbohydrates serve as identifiers for cancer cells. Their findings, which appear in the journal Proceedings of the National Academy of Sciences, show how these molecules may serve as signals for cancer and explain what's going on inside these cells, pointing to new ways in which sugars function as a looking glass into the workings of their underlying structures.

Gut microbes spur development of bowel cancer

It is not only genetics that predispose to bowel cancer; microbes living in the gut help drive the development of intestinal tumors, according to new research in mice published in the March issue of The Journal of Experimental Medicine.

People with sleep apnea may be at higher risk of pneumonia

People with sleep apnea appear to be at higher risk of pneumonia than people without, according to a study published in CMAJ (Canadian Medical Association Journal).

Sleep apnea is characterized by disrupted sleep, caused when the upper airway becomes obstructed by soft tissue, cutting off oxygen. It has been linked to several types of heart disease and cognitive impairment. People with obstructive sleep apnea are at higher risk of aspiration while sleeping.

Myriad publishes clinical utility study for Prolaris

SALT LAKE CITY, Utah, March 3, 2014 – Myriad Genetics, Inc. (Nasdaq: MYGN) today announced that it has published data from the PROCEDE 500 study in the journal Current Medical Research and Opinion, demonstrating that 65 percent of physicians changed their original treatment plans for men with prostate cancer based on results from the Prolaris test. Prolaris is a 46-gene molecular diagnostic test that has been evaluated in 11 clinical studies with more than 5,000 patients.

Ancient Chinese medicine put through its paces for pancreatic cancer

SAN ANTONIO (March 3, 2014) – The bark of the Amur cork tree (Phellodendron amurense) has traveled a centuries-long road with the healing arts. Now it is being put through its paces by science in the fight against pancreatic cancer, with the potential to make inroads against several more.

UT Health Science Center researcher A. Pratap Kumar was already exploring the cork tree extract's promise in treating prostate cancer when his team found that deadly pancreatic cancers share some similar development pathways with prostate tumors.

IU study: College athletes often sidelined from healthy lifestyle later in life

BLOOMINGTON, Ind. -- An Indiana University study found that elite college athletes -- typically the picture of health and vitality -- often struggle to stay active in later years, facing limitations to their day-to-day activities in middle age that could be a result of injuries during their athletic career.

Entomologists update definitions to tackle resistance to biotech crops and pesticides

Resistance to pesticides has now been recorded in nearly a thousand pest species, including more than 500 insects, 218 weeds, and 190 fungi that attack plants. The recorded cases of resistance in insects, mites and other arthropods, which include resistance to multiple pesticides per species, more than doubled from 5,141 in 1990 to 11,254 in 2013. A first step in tackling this growing global problem is establishing a common vocabulary, because the current jumble of terms fosters confusion among scientists in academia, industry and government.

Mandatory arrest in domestic violence call-outs causes early death in victims

New research from a major 'randomised' arrest experiment 23 years ago finds that domestic violence victims whose partners were arrested on misdemeanor charges – mostly without causing injury – were 64% more likely to have died early, compared to victims whose partners were warned but not removed by police.

In first moments of infection, a division and a decision

Using technologies and computational modeling that trace the destiny of single cells, researchers at the University of California, San Diego School of Medicine describe for the first time the earliest stages of fate determination among white blood cells called T lymphocytes, providing new insights that may help drug developers create more effective, longer-lasting vaccines against microbial pathogens or cancer.

The findings are published in the March 2, 2014 online issue of Nature Immunology.

Detecting levels of antibiotics in blood paves the way to individualized treatment

A new methodology for rapidly measuring the level of antibiotic drug molecules in human blood serum has been developed, paving the way to applications within drug development and personalised medicine.

The study, published today in Nature Nanotechnology, describes the exploitation of a sensor for measuring the concentration of effective antibiotics in blood, giving an indication of their efficiency against disease causing pathogens, for instance multidrug resistant hospital "superbugs".

Imaging dynamics of small biomolecules inside live cells

Researchers at Columbia University have made a significant step toward visualizing small biomolecules inside living biological systems with minimum disturbance, a longstanding goal in the scientific community. In a study published March 2nd in Nature Methods, Assistant Professor of Chemistry Wei Min's research team has developed a general method to image a broad spectrum of small biomolecules, such as small molecular drugs and nucleic acids, amino acids, lipids for determining where they are localized and how they function inside cells.

Study pinpoints protective mutations for type 2 diabetes

An international team led by researchers at the Broad Institute and Massachusetts General Hospital (MGH) has identified mutations in a gene that can reduce the risk of developing type 2 diabetes, even in people who have risk factors such as obesity and old age. The results focus the search for developing novel therapeutic strategies for type 2 diabetes; if a drug can be developed that mimics the protective effect of these mutations, it could open up new ways of preventing this devastating disease.

Study of antibody evolution charts course toward HIV vaccine

In an advance for HIV vaccine research, a scientific team has discovered how the immune system makes a powerful antibody that blocks HIV infection of cells by targeting a site on the virus called V1V2. Many researchers believe that if a vaccine could elicit potent antibodies to a specific conserved site in the V1V2 region, one of a handful of sites that remains constant on the fast-mutating virus, then the vaccine could protect people from HIV infection.