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Study reveals dual role for Norrin/Frizzled-4 protein pair

Working with mice, Johns Hopkins researchers have shed light on the activity of a protein pair found in cells that form the walls of blood vessels in the brain and retina, experiments that could lead to therapeutic control of the blood-brain barrier and of blood vessel growth in the eye.

7 Dec 2012

Gene therapy could represent new treatment option for severe orthopaedic injuries

Gene therapy involving modified stem cells obtained from fatty tissue and bone marrow could represent a new option for the treatment of severe orthopaedic injuries to the extremities.

7 Dec 2012

Researchers discover 29 proteins associated with spread of kidney cancer

Researchers at St. Michael's hospital have identified 29 proteins that are likely to be involved in the spread of kidney cancer. The discovery will help physicians recognize which tumours are going to behave more aggressively and provide those patients with more intensive treatment and closer followup.

7 Dec 2012

Cocktail-treated human NK cells show promise against cancer

Fighting cancer using the body's own defense system is a promising treatment approach. Immune therapies have even become clinical routine in treating a few cancers such as malignant melanoma and prostate cancer. Natural killer cells (or NK cells) are considered to be particularly suitable weapons against cancer.

7 Dec 2012

Positive results from NanoString's second clinical study of PAM50-based breast cancer assay

NanoString Technologies, Inc., a privately held provider of life science tools for translational research and developer of molecular diagnostic products, today announced positive results from the second clinical validation study of its in vitro diagnostic breast cancer assay based on the PAM50 gene expression signature.

From NanoString Technologies 7 Dec 2012

BDNF molecule appears to play a direct role in regulation of blood pressure

Researchers at Oregon Health & Science University's School of Dentistry have made an important connection between a molecule critical to nerve cells and high blood pressure. Production of the molecule Brain-Derived Neurotrophic Factor (BDNF) appears to increase dramatically in blood pressure-sensing nerve cells during hypertension.

7 Dec 2012

Ketogenic diet and fasting can reduce seizures in children

Children with persistent and drug-resistant seizures treated with the high-fat, low-carbohydrate ketogenic diet may get an added therapeutic benefit from periodic fasting, according to a small Johns Hopkins Children's Center study.

7 Dec 2012

Scientists isolate previously unknown protein in skeletal muscle

Scientists at Dana-Farber Cancer Institute have isolated a previously unknown protein in muscles that spurs their growth and increased power following resistance exercise. They suggest that artificially raising the protein's levels might someday help prevent muscle loss caused by cancer, prolonged inactivity in hospital patients, and aging.

7 Dec 2012

People with glaucoma show delayed eye movement reaction times

Rapid eye movements are significantly delayed in patients with glaucoma, even those in the early stages of the disease, research has found.

7 Dec 2012

Genome sequencing reveals previously unreported mutations in metastatic TNBC

Whole genome sequencing has revealed previously unreported mutations in metastatic triple-negative breast cancer (TNBC), according to a study published by the journal Molecular Cancer Therapeutics.

6 Dec 2012

Microarray analysis more effective in pinpointing potential genetic causes of stillbirth

Stillbirth is a tragedy that occurs in one of every 160 births in the United States. Compounding the sadness for many families, the standard medical test used to examine fetal chromosomes often can't pin down what caused their baby to die in utero. In most cases, the cause of the stillbirth is not immediately known.

6 Dec 2012

Study finds relationships between body size and epigenetic changes

New research in human volunteers has shown that molecular changes to our genes, known as epigenetic marks, are driven mainly by ageing but are also affected by what we eat.

6 Dec 2012

SOX2 directly regulated by tumor suppressor CDKN1B(p27) gene

A team of researchers from the Spanish National Cancer Research Centre (CNIO), led by Manuel Serrano, from the Tumour Suppression Group, together with scientists from London and Santiago de Compostela, has discovered that the cellular reprogramming gene SOX2, which is involved in several types of cancers, such as lung cancer and pituitary cancer, is directly regulated by the tumor suppressor CDKN1B(p27) gene, which is also associated with these types of cancer.

6 Dec 2012

Scientists identify novel mechanism by which ketogenic diet could delay effects of aging

Scientists at the Gladstone Institutes have identified a novel mechanism by which a type of low-carb, low-calorie diet-called a "ketogenic diet"-could delay the effects of aging. This fundamental discovery reveals how such a diet could slow the aging process and may one day allow scientists to better treat or prevent age-related diseases, including heart disease, Alzheimer's disease and many forms of cancer.

6 Dec 2012

Bilirubin can inhibit clogging of arteries and prevent deadly consequences

Each year, about 610,000 Americans suffer their first heart attack, according to the Centers for Disease Control and Prevention. Heart attacks and other symptoms of cardiovascular disease can be caused when blockage occurs in the arteries. In a new study from the University of Missouri, a scientist has discovered a natural defense against arterial blockage: bilirubin.

6 Dec 2012

Scientists identify key molecular pathway that leads to depression

Scientists have identified the key molecular pathway leading to depression, revealing potential new targets for drug discovery, according to research led by King's College London's Institute of Psychiatry. The study, published today in Neuropsychopharmacology, reveals for the first time that the 'Hedgehog pathway' regulates how stress hormones, usually elevated during depression, reduce the number of brain cells.

6 Dec 2012

Researchers unlock mechanisms of how the body converts dietary carbohydrates into fat

A gene that helps the body convert that big plate of holiday cookies you just polished off into fat could provide a new target for potential treatments for fatty liver disease, diabetes and obesity.

6 Dec 2012

Study catalogs genetic variation of microbes that live in the gut

Our bodies contain far more microbial genes than human genes. And a new study suggests that just as human DNA varies from person to person, so too does the massive collection of microbial DNA in the intestine.

6 Dec 2012

Galectins play an important role in development of osteoarthrosis

Inflammatory joint disease (arthritis) is affecting more and more, and especially older, people. In a recent survey by Statistik Austria, 39 per cent of people over the age of 60 stated that they have a form of arthritis. One particular form of the condition is osteoarthrosis, which is wear and tear on the joints.

6 Dec 2012

Bisphenol A blocks calcium channels in cell membranes

Bisphenol A, a substance found in many synthetic products, is considered to be harmful, particularly, for fetuses and babies. Researchers from the University of Bonn have now shown in experiments on cells from human and mouse tissue that this environmental chemical blocks calcium channels in cell membranes. Similar effects are elicited by drugs used to treat high blood pressure and cardiac arrhythmia. The results are now presented in the journal "Molecular Pharmacology."

6 Dec 2012