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Extreme norovirus flexibility may allow for broad antibody recognition

Twenty million Americans get sick from norovirus each year according to data released last week by the Centers for Disease Control (CDC). Often called vomiting illness, it can spread rapidly on cruise ships, and in dormitories and hospitals. Recent data from the CDC shows deaths from gastrointestinal infections have more than doubled and have become a particular threat to the elderly.

22 Mar 2012

Computer program could help dementia patients manage their disease

Researchers at Weill Cornell Medical College have developed a computer program that has tracked the manner in which different forms of dementia spread within a human brain. They say their mathematic model can be used to predict where and approximately when an individual patient's brain will suffer from the spread, neuron to neuron, of "prion-like" toxic proteins -- a process they say underlies all forms of dementia.

22 Mar 2012

MRI screening could be cost effective for women with familial risk of breast cancer

Adding magnetic resonance imaging (MRI) to standard breast cancer screening approaches is expensive, though it could be cost effective for a group of women who may not have inherited the breast cancer susceptibility genes, but who have a familial risk of developing the disease.

22 Mar 2012

Alpha-5 GABA type A receptors linked to anesthesia-related memory loss

A drug targeting one specific receptor may provide the first effective approach to treatment for the common problem of memory loss after surgery and anesthesia, according to an experimental study in the April issue of Anesthesia & Analgesia, official journal of the International Anesthesia Research Society.

22 Mar 2012

Powerful immunosuppressant cells from cheek lining tissue

Powerful new cells created by Cardiff University scientists from cheek lining tissue could offer the answer to disorders of the immune system.

22 Mar 2012

GUCY2C gene mutation leads to familial diarrhea syndrome

When the intestines are not able to properly process our diet, a variety of disorders can develop, with chronic diarrhea as a common symptom. Chronic diarrhea can also be inherited, most commonly through conditions with genetic components such as irritable bowel syndrome. Researchers in Norway, India, and at the HudsonAlpha Institute for Biotechnology have identified one heritable DNA mutation that leads to chronic diarrhea and bowel inflammation.

22 Mar 2012

Alzheimer's may spread through connected neurons

Alzheimer's disease and other forms of dementia may spread within nerve networks in the brain by moving directly between connected neurons, instead of in other ways proposed by scientists, such as by propagating in all directions, according to researchers who report the finding in the March 22 edition of the journal Neuron.

22 Mar 2012

Researchers explain how obscurins suppress breast cancer formation

A new discovery published online in The FASEB Journal may lead to a new tool to help physicians assess breast cancer risk as well as diagnose the disease. In the report, researchers from Johns Hopkins University and the University of Maryland, explain how proteins, called "obscurins," once believed to only be in muscle cells, act as "tumor suppressor genes" in the breast.

22 Mar 2012

Anesthesia may affect organization of lipids in a cell's outer membrane

Why does inhaling anesthetics cause unconsciousness? New insights into this century-and-a-half-old question may spring from research performed at the National Institute of Standards and Technology.

22 Mar 2012

Scientists create worm model of back-up telomere repair strategy

Rapidly dividing cancer cells are skilled at patching up damage that would stop normal cells in their tracks, including wear and tear of telomeres, the protective caps at the end of each chromosome.

22 Mar 2012

CBSM intervention can alter tumor-promoting processes in women with breast cancer

A team of researchers led by Michael H. Antoni, director of the Center for Psycho-Oncology Research at the University of Miami (UM) has shown that a stress management program tailored to women with breast cancer can alter tumor-promoting processes at the molecular level. The new study recently published in the journal Biological Psychiatry is one of the first to link psychological intervention with genetic expression in cancer patients.

22 Mar 2012

Challenges in Salivary Diagnostics symposium to take place on March 22

On March 22, during the 41st Annual Meeting & Exhibition of the American Association for Dental Research (AADR), held in conjunction with the 36th Annual Meeting of the Canadian Association for Dental Research, a symposium titled "Challenges in Salivary Diagnostics" will take place to discuss the issues with saliva collection and storage, proteomic analyses, and the growing interest and availability of commercial tests for salivary biomarkers.

22 Mar 2012

New method for in vivo study of unknown selenium metabolism

Spanish and Danish researchers have developed a method for the in vivo study of the unknown metabolism of selenium, an essential element for living beings. The technique can help clarify whether or not it possesses the anti-tumour properties that have been attributed to it and yet have not been verified through clinical trials.

22 Mar 2012

Pannexins may contribute to symptoms related to IBD

Researchers from the Hotchkiss Brain Institute (HBI) and the Snyder Institute for Chronic Diseases at the University of Calgary's Faculty of Medicine have discovered a pathway that may contribute to the symptoms related to Crohn's disease and ulcerative colitis, collectively known as Inflammatory Bowel Disease.

22 Mar 2012

Advances in Neuroimmune Biology explores maternal-fetal interactions

Fertility problems, recurrent miscarriages, and pregnancy complications can occur when maternal immunological tolerance of the fetus is impaired. G-rard Chaouat and colleagues from Inserm et Assistance Publique et Universit- Paris Sud Orsay, Hopital Antoine B-cl-re, Clamart Cedex, France, trace the evolution of the science of reproductive immunology to show how the current understanding of maternal-fetal tolerance/dialogue has developed, and its implications for the treatment of infertility disorders

22 Mar 2012

New genotype may be responsible for sharp rise in whooping cough

Australia's prolonged whooping cough epidemic has entered a disturbing new phase, with a study showing a new strain or genotype may be responsible for the sharp rise in the number of cases.

22 Mar 2012

Scientists reveal first-ever glimpse of complete kappa opioid receptor structure

At the molecular level, drugs like salvinorin A (the active ingredient of the hallucinogenic plant Salvia divinorum) work by activating specific proteins, known as receptors, in the brain and body.

22 Mar 2012

Two Brandeis researchers receive Canada Gairdner Award

Two distinguished Brandeis researchers, whose long-standing collaboration led to pioneering discoveries about the workings of the biological clock and its role in circadian rhythms, today were awarded the prestigious Canada Gairdner Award, that nation's foremost international scientific honor.

22 Mar 2012

Link between autism risk gene and changes in brain structure and connectivity

Healthy individuals who carry a gene variation linked to an increased risk of autism have structural differences in their brains that may help explain how the gene affects brain function and increases vulnerability for autism.

22 Mar 2012

Study finds higher death rate in calorie-restricted models of IBD

In a surprising result, Michigan State University researchers looking at the effects of diet on bowel disease found that mice on a calorie-restricted diet were more likely to die after being infected with an inflammation-causing bacterial pathogen in the colon.

21 Mar 2012