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Daily commute in car increases exposure to harmful air pollutants

The daily commute may be taking more of a toll than people realize. A new study by researchers at the University of Southern California (USC) and the California Air Resources Board found that up to half of Los Angeles residents' total exposure to harmful air pollutants occurs while people are traveling in their vehicles.

31 Oct 2007

No link between vitamin D and overall cancer deaths

No relationship was found between vitamin D levels and the overall risk of dying from cancer, according to a study published online October 30 in the Journal of the National Cancer Institute.

31 Oct 2007

Neural stem cells may help to restore memory after brain damage

In the study, mice with brain injuries experienced enhanced memory -- similar to the level found in healthy mice -- up to three months after receiving a stem cell treatment. Scientists believe the stem cells secreted proteins called neurotrophins that protected vulnerable cells from death and rescued memory.

31 Oct 2007

Timing repeat colonoscopy: disparity between guidelines and endoscopists' recommendations

Colonoscopies are important screening tools to find colon cancers, but a recent study implies that endoscopists suggest repeat tests more often than practice guidelines recommend.

31 Oct 2007

Quality of life most important for survival in advanced non-small cell lung patients

Healthcare providers have observed it for years -- patients who appear to have a better quality of life while battling their cancer live longer.

31 Oct 2007

Family ties determine who gets heart disease

The genetic family ties that bind brothers and sisters also link their risk for developing clogged arteries and having potentially fatal heart attacks, scientists at Johns Hopkins report.

31 Oct 2007

New brain marker predicts cognitive decline and the development of Alzheimer's disease

Duke University Medical Center researchers have used imaging technology to identify a new marker that may help identify those at greatest risk for cognitive decline and the development of Alzheimer's disease.

31 Oct 2007

Neurons in primate cortex associate numerical meaning with visual signs

Humans share with animals a language-independent system for representing numerical quantity, but number symbols have to be acquired throughout childhood.

31 Oct 2007

How tumors respond to EGFR inhibitors

Three papers published this month in the open access general medical journal PLoS Medicine investigate how tumors respond to a an important class of drugs used in cancer chemotherapy, known as epidermal growth factor receptor (EGFR) inhibitors.

31 Oct 2007

Key findings for all veterans seen in depression and suicide study

The largest and most up-to-date study of suicides among depressed veterans provides important new data that may help guide screening and treatment for all veterans.

31 Oct 2007

Stereotactic radiation is effective as surgery against nerve tumor

Specifically aimed, "stereotactic" radiation may be as good as surgery - and in some cases, even better - in treating benign but potentially devastating brain tumors called non-acoustic schwannomas, according to a study by rradiation oncologists at the Kimmel Cancer Center at Thomas Jefferson University and Thomas Jefferson University Hospital in Philadelphia.

31 Oct 2007

Alzheimer's may progress more rapidly in people with high blood pressure or atrial fibrillation

While current medications for Alzheimer's disease are effective for some patients in slowing the rate of AD progression, many patients do not benefit from the treatments or cannot tolerate them, says lead researcher Michelle M. Mielke, Ph.D., of the Department of Psychiatry and Behavioral Sciences at The Johns Hopkins University School of Medicine.

31 Oct 2007

Fibromyalgia pain caused by neuron mismatch

The unexplained pain experienced by patients with fibromyalgia is the result of a mismatch between sensory and motor systems, new research suggests.

31 Oct 2007

Vitamin D protects against colorectal cancer

According to a new study by researchers at the U.S. National Cancer Institute (NCI) there is no link between vitamin D levels and the overall risk of dying from cancer.

31 Oct 2007

Young white veterans more at risk of suicide

The results of a large study on military veterans in the United States suggests that it is young white men who have the highest risk of suicide.

31 Oct 2007

Antisocial behaviour in kids key to alcohol trouble in teens

It is not levels of underage drinking, but early signs of antisocial behaviour that best predict future alcohol-related trouble and continued alcohol use by young people.

31 Oct 2007

One in seven Americans over the age of 70 suffers from dementia

About 3.4 million people, or 13.9 percent of the population age 71 and older, have some form of dementia, the study found. As expected, the prevalence of dementia increased dramatically with age, from five percent of those aged 71 to 79 to 37.4 percent of those age 90 and older.

31 Oct 2007

Pre-op antibiotics prevent infection for wisdom teeth surger

Patients who have their wisdom teeth pulled and do not take antibiotics before surgery are twice as likely to get an infection after the surgery than those who take a single dose of antibiotics shortly before surgery, says Eastman Dental Center researchersYan-Fang Ren, DDS, PhD, MPH and Hans Malmstrom, DDS.

30 Oct 2007

Veterans' suicide study yields key findings

The largest and most up-to-date study of suicides among depressed veterans provides important new data that may help guide screening and treatment for all veterans.

30 Oct 2007