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How our brain performs facial recognition

Our brain extracts important information for face recognition principally from the eyes, and secondly from the mouth and nose, according to a new study from a researcher at the University of Barcelona.

29 Mar 2009

Drinking very hot tea increases risk of cancer of the oesophagus

People are advised to wait a few minutes before drinking a cup of freshly-boiled tea today as a new study, published on bmj.com, finds that drinking very hot tea (70°C or more) can increase the risk of cancer of the oesophagus, the muscular tube that carries food from the throat to the stomach.

29 Mar 2009

Vindictiveness doesn't pay

Vindictiveness doesn't pay. This has been demonstrated by a current study at Bonn and Maastricht Universities.

29 Mar 2009

Scientists create vector, exotic genes from induced stem cells

A team of University of Wisconsin-Madison researchers reports that it has created induced human pluripotent stem (iPS) cells completely free of viral vectors and exotic genes.

29 Mar 2009

Researchers reveal mechanism that regulates cancer-causing gene

Two University of Rhode Island scientists have revealed how a cancer causing protein is regulated by reactive oxygen species (ROS) -- a type of stress signal.

29 Mar 2009

New discovery could lead to new methods to block the transmission of HIV

A team of researchers at Mount Sinai School of Medicine and the UC Davis Center for Biophotonics Science and Technology have for the first time captured on video the transfer of human immunodeficiency virus (HIV) from infected to uninfected T cells through structures called virological synapses.

29 Mar 2009

Discovery of mechanism of neurodegeneration in Alzheimer's disease

Tiny, toxic protein particles severely disrupt neurotransmission and inhibit delivery of key proteins in Alzheimer's disease, two separate studies by Marine Biological Laboratory (MBL) researchers have found.

29 Mar 2009

Scientists discover structure of a protein that makes cancer cells resistant to chemotherapy

A research team at the Scripps Research Institute has obtained the first glimpse of a protein that keeps certain substances, including many drugs, out of cells.

29 Mar 2009

Using public transit may help you keep fit

The study, published in the Journal of Public Health Policy, finds that people who take public transit are three times more likely than those who don't to meet the Heart and Stroke Foundation of Canada's suggested daily minimum of physical activity.

29 Mar 2009

Protein from tick saliva shows potential for myasthenia gravis treatment

Looking for a better treatment for the autoimmune disease myasthenia gravis, researchers have found that a protein in tick saliva shows promise in limiting the severity of the disease in an animal model in a study published in the Annals of Neurology.

29 Mar 2009

New drink targeted for diabetics, individuals with high blood sugar

Scientists in China are reporting development of a low-calorie, low-sugar vegetable juice custom-designed for millions of individuals with diabetes and pre-diabetic conditions that involve abnormally high blood sugar.

29 Mar 2009

Transdermal delivery of estrogen therapy may show safety benefits as opposed to oral delivery

Transdermal delivery of estrogen therapy available by prescription "seems not to alter" the risk of venous thromboembolism (VTE), or blood clotting, in postmenopausal patients when compared to oral delivery, a new study suggests.

29 Mar 2009

New way to make stem cells avoids risk of cancer

A team of scientists has advanced stem cell research by finding a way to endow human skin cells with embryonic stem cell-like properties without inserting potentially problematic new genes into their DNA.

29 Mar 2009

Modified magnetic resonance imaging technique shows disease metabolism in action

Duke University chemists are using modified magnetic resonance imaging to see molecular changes inside people's bodies that could signal health problems such as cancer.

29 Mar 2009

Nanoparticles in cosmetics may be harmful to the environment

Using aquatic microbes as their "canary-in-a-cage," scientists from Ohio have reported that nanoparticles now being added to cosmetics, sunscreens, and hundreds of other personal care products may be harmful to the environment.

29 Mar 2009

Researcher links cholesterol crystals to cardiovascular attacks

For the first time ever, a Michigan State University researcher has shown cholesterol crystals can disrupt plaque in a patient's cardiovascular system, causing a heart attack or stroke.

29 Mar 2009

Link between sleeping medicine use and driving impairment

A new study from the Norwegian Institute of Public Health shows a positive link between the amount of the hypnotic (sleeping medicine) zopiclone in the blood and the chance of being assessed as impaired in a clinical examination.

29 Mar 2009

New evidence supports use of catheter-based therapy to remove blood clots in stroke patients

Nearly 90 percent of the 700,000 strokes that affect U.S. patients each year are caused by a blockage of blood vessels supplying the brain, known as ischemic stroke.

29 Mar 2009

Climate change and its adverse effects on health needs more research funding

Climate change will seriously impact public health, but the United States has yet to allocate adequate research funding to understand and prepare for these impacts, according to a report published in Environmental Health Perspectives, the journal of the U.S. National Institute of Environmental Health Sciences.

29 Mar 2009

DNA repair mechanisms relocate in response to stress

Like doctors making house calls, some DNA repair enzymes can relocate to the part of the cell that needs their help, a collaborative team of scientists at Emory University School of Medicine has found.

29 Mar 2009