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Researchers shed light on the brain cell damage caused by Alzheimer's disease

The researchers hope that by gaining a better understanding of the disease's cellular impacts, progress can be made towards developing a treatment. The research is reported in the current edition of the Journal of Alzheimer's Disease, published by IOS publishers.

7 Apr 2005

Level I trauma centers boost head injury survival

Head injury patients transferred to level I trauma centers are more likely to survive than if they're transferred to level II facilities, an Oregon Health & Science University study has found.

7 Apr 2005

Pfizer withdraws Bextra from market

Despite an expert panel stating last month that the three COX-2 drugs Vioxx, Bextra and Celebrex were safe enough to be marketed, the U.S. Food and Drug Administration (FDA) has this week told drug manufacturer Pfizer to remove the drug Bextra from the market and a statement by Pfizer confirms that the European Union regulators have done the same.

7 Apr 2005

Researchers set a new standard in the design and engineering of nuclear hormone receptor-based genetic on-off switches

Researchers at the University of Illinois at Urbana-Champaign have set a new standard in the design and engineering of nuclear hormone receptor-based genetic on-off switches, without causing new problems or aggravating existing ones.

7 Apr 2005

Molecular motors cooperate in moving cellular cargo

Researchers using an extremely fast and accurate imaging technique have shed light on the tiny movements of molecular motors that shuttle material within living cells. The motors cooperate in a delicate choreography of steps, rather than engaging in the brute-force tug of war many scientists had imagined.

7 Apr 2005

Research helps understand how the malaria parasite disguises itself to avoid detection by the immune system

Scientists are making strides in understanding how the malaria parasite Plasmodium falciparum disguises itself to avoid detection by the immune system. The findings could lead to the development of new drugs for a disease that causes more than 300 million acute illnesses and at least one million deaths each year, most of them in developing countries.

7 Apr 2005

Naltrexone combined with psychotherapy helps treat alcohol dependence

Long-acting injections of the drug naltrexone, combined with psychotherapy, significantly reduced heavy drinking in patients being treated for alcohol dependence, according to a study in the Journal of the American Medical Association by a Yale School of Medicine researcher.

7 Apr 2005

Oncolytic viruses may one day help treat brain tumors

New research shows that a virus designed to kill cancer cells can significantly increase the survival of mice with an incurable human brain tumor, even in some animals with advanced disease.

7 Apr 2005

Some people with autism and large heads may have an increased risk of cancer

A gene that is changed in many forms of cancer has also been found to show similar changes in some forms of autism, according to preliminary research.

7 Apr 2005

Role of oxidative stress (OS) in dialysis patients

An article published in Hemodialysis International discusses the role of oxidative stress (OS) in dialysis patients, an imbalance which can result in long-term health problems. Potential therapeutic options to restore balance in patients are also reviewed.

7 Apr 2005

Infection with Chlamydia pneumoniae may increase the risk of heart attack in young men

Preliminary research suggests infection with Chlamydia pneumoniae may increase the risk of heart attack in young men, according to an article in the April 15 issue of Clinical Infectious Diseases.

7 Apr 2005

Why different tissues in the human body vary in their susceptibility to "amyloid" diseases

Researchers at The Scripps Research Institute are reporting the results of a recent study that addresses why different tissues in the human body vary in their susceptibility to "amyloid" diseases, which include Alzheimer's disease and a cluster of ailments called the familial amyloidoses.

7 Apr 2005

Study may lead to a better understanding of how antidepressants like Prozac work

According to results published in today's issue of the journal Neuron, a study in mice proposes that dopamine and serotonin neurotransmitter systems in the brain occasionally get their signals crossed, causing delays in stabilizing mood.

7 Apr 2005

Fibril shape is the basis of prion strains and cross-species prion infection

New research on prions, the infectious proteins behind "mad cow" disease and Creutzfeld-Jakob disease in humans, suggests that the ability of prions in one species to infect other species depends on the shape of the toxic threadlike fibers produced by the prion. Two studies on the topic appear in the 8 April issue of the journal Cell.

7 Apr 2005

Process called sumoylation regulates key ion channel

Researchers at the University of Chicago have found that a recently discovered biological process known as sumoylation -- until now thought to be active only in the nucleus -- also occurs near the cell's surface where it regulates at least one and possibly many kinds of proteins, providing a novel target for the development of new drugs.

7 Apr 2005

Epstein-Barr virus may increase risk of lupus

Almost everyone has been infected with Epstein-Barr virus (EBV), a member of the herpes family and one of the most common human viruses.

7 Apr 2005

You need to do vigorous activity if you want to be lean

Adolescents who get daily vigorous physical activity tend to be leaner and fitter than their less active peers, researchers have shown.

7 Apr 2005

Competition in health care may not result in better quality

For several decades, competition within the health care industry has been touted as the way to curb rising prices by reducing inefficient practices and improving quality and safety. But a study of 341 HMOs suggests that more competition may not automatically solve price and quality-of-care problems as hoped for by legislators, regulators and employers.

7 Apr 2005

FDA posts silicone gel breast implant approval information

The U.S. Food and Drug Administration (FDA), has posted information on it's web site related to the Mentor Corporation's silicone gel breast implant pre-market approval (PMA) application, scheduled to be reviewed at a General and Plastics Surgery Devices Advisory Panel meeting April 11-13, 2005.

6 Apr 2005

Vaccine against cervical cancer and genital warts looks hopeful

More than two thirds of sexually active women will become infected with human papillomavirus (HPV) during their lifetime. HPV causes around 470 000 cases of cervical cancer each year and even though most cases of cervical cancer occur in the developing world, where cervical screening programmes are in the main non-existent, in Europe and the US 35000 women die from the disease every year.

6 Apr 2005