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Dengue infection makes mosquito's blood feeding more efficient

Mosquitoes infected with dengue virus experience an array of changes in the activity of genes and associated functions of their salivary glands, and these changes may lead to increased virus transmission, according to a recent study led by George Dimopoulos, Ph.D., of the Malaria Research Institute and Bloomberg School of Public Health at Johns Hopkins University.

31 Mar 2012

UH clinical trial to evaluate stool DNA testing for colon cancer

In a first-of-its-kind clinical trial, physician-scientists at University Hospitals (UH) Case Medical Center's Seidman Cancer Center and Case Western Reserve University School of Medicine are studying a promising new non-invasive technology for colon cancer screening. The four-year study is recruiting patients to compare the effectiveness of stool DNA (SDNA) testing with colonoscopy for detecting large colon polyps.

31 Mar 2012

SAP protein promotes deposition of amyloid beta in Alzheimer's

The deposition of amyloid beta in the brain of individuals with Alzheimer's disease is the focus of much research into both its cause and treatment.

31 Mar 2012

Nmnat enzyme plays a critical role in nerve injury

A new animal model of nerve injury has brought to light a critical role of an enzyme called Nmnat in nerve fiber maintenance and neuroprotection.

31 Mar 2012

BPA shows tangible effects on health endpoints at high dosage levels

Endocrine-disrupting chemicals (EDCs)-such as BPA-can show tangible effects on health endpoints at high dosage levels, yet those effects do not predict how EDCs will affect the endocrine system at low doses, according to a recent study accepted for publication in The Endocrine Society's Endocrine Reviews.

30 Mar 2012

Disrupting mTORC1 protein complex extends lifespan

One of the secrets to a longer, healthier life is simply to eat less. When subjected to calorie restriction (CR), typically defined as a 20-40% reduction in caloric intake with corresponding maintenance of proper nutrition, animals in labs not only live longer, but also have improved insulin sensitivity and glucose tolerance, both of which decline during aging.

30 Mar 2012

Study confirms innate ability of ticks to adapt to changing climatic conditions

Carnivores in the Iberian Peninsula, such as the Iberian lynx, are under an increasingly serious threat: ticks that can adapt to changing climatic conditions and that can even survive in extremely arid environments. A study headed by Spanish researchers confirms the innate ability of ticks to adapt according to climate.

30 Mar 2012

Infection with dengue virus turns on feeding-related genes in mosquitoes

Researchers at the Johns Hopkins Bloomberg School of Public Health have, for the first time, shown that infection with dengue virus turns on mosquito genes that makes them hungrier and better feeders, and therefore possibly more likely to spread the disease to humans.

30 Mar 2012

Cancer cells grow and proliferate more robustly when exposed to human cells

New research from the Technion-Israel Institute of Technology Rappaport Faculty of Medicine and Research Institute and the Rambam Medical Center may lead to the development of new methods for controlling the growth of cancer, and perhaps lead to treatments that will transform cancer from a lethal disease to a chronic, manageable one, similar to AIDS.

30 Mar 2012

Scientists reveal powerful role of astrocytes in the brain

A type of cell plentiful in the brain, long considered mainly the stuff that holds the brain together and oft-overlooked by scientists more interested in flashier cells known as neurons, wields more power in the brain than has been realized, according to new research published today in Science Signaling.

30 Mar 2012

TRIM28 protein essential after fertilisation to preserve epigenetic marks on imprinted genes

An international team led by scientists at A*STAR's Institute of Medical Biology (IMB) discovered that a protein, called TRIM28, normally present in the mother's egg, is essential right after fertilisation, to preserve certain chemical modifications or 'epigenetic marks' on a specific set of genes.

30 Mar 2012

Marfan syndrome researcher to receive March of Dimes/Colonel Harland Sanders Award

A long-time clinician and researcher on Marfan syndrome who helped identify the syndrome's genetic cause and a potential treatment will be honored by the March of Dimes.

30 Mar 2012

The Lancet acknowledges world's first bedside genetic test

Developed in Canada and conducted by researchers from the University of Ottawa Heart Institute, in partnership with Spartan Bioscience, the world's first bedside genetic test has received acknowledgment by The Lancet, the world's leading general medical journal.

30 Mar 2012

Cyberplasm could pinpoint diseases within the human body

A tiny prototype robot that functions like a living creature is being developed which one day could be safely used to pinpoint diseases within the human body.

30 Mar 2012

Vitamin D-fortified doogh improves inflammatory markers in type 2 diabetics

Daily intake of vitamin D-fortified doogh (Persian yogurt drink) improved inflammatory markers in type 2 diabetics and extra calcium conferred additional anti-inflammatory benefits, according to a recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology and Metabolism.

30 Mar 2012

New synthetic small molecules could treat obesity, diabetes and sleep disorders

Scientists from the Florida campus of The Scripps Research Institute have synthesized a pair of small molecules that dramatically alter the core biological clock in animal models, highlighting the compounds' potential effectiveness in treating a remarkable range of disorders-including obesity, diabetes, high cholesterol, and serious sleep disorders.

30 Mar 2012

Women with HIV superinfection have more potent antibody responses

Women who have been infected by two different strains of HIV from two different sexual partners - a condition known as HIV superinfection - have more potent antibody responses that block the replication of the virus compared to women who've only been infected once. These findings, by researchers at Fred Hutchinson Cancer Research Center in Seattle, are published online March 29 in PLoS Pathogens.

30 Mar 2012

Researchers identify new population of intestinal stem cells

Vanderbilt-Ingram Cancer Center researchers have identified a new population of intestinal stem cells that may hold clues to the origin of colorectal cancer.

30 Mar 2012

Study identifies key mechanism behind breast cancer metastasis

A new study has identified a key mechanism that causes breast cancer to spread. The research, published by Cell Press on March 30th in the journal Molecular Cell, enhances our knowledge about the signals that drive cancer metastasis and identifies new therapeutic targets for a lethal form of invasive breast cancer that is notoriously resistant to treatment.

30 Mar 2012

Scientists produce first genetic brain atlas

The first atlas of the surface of the human brain based upon genetic information has been produced by a national team of scientists, led by researchers at the University of California, San Diego School of Medicine and the VA San Diego Healthcare System.

30 Mar 2012