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Severe stress can damage a child's brain

According to researchers in the U.S. children who suffer severe stress may also suffer damage to their brains.

5 Mar 2007

Two experimental drugs aimed at controlling viral loads among HIV-positive people who have developed drug resistance show promise

Two experimental antiretroviral drugs, called TMC278 and elvitegravir, show promise in controlling the viral loads of HIV-positive people who have developed resistance to available drugs, researchers said Wednesday at the 14th Annual Conference on Retroviruses and Opportunistic Infections in Los Angeles, the Los Angeles Times reports.

4 Mar 2007

FDA approval for new cattle antibiotic will cause controversy

According to reports the Food and Drug Administration (FDA) in the United States is about to approve the use of another antibiotic in cattle.

4 Mar 2007

Unlocking the mystery of skin renewal

Everyday we shed the outermost layer of our skin and replace it from within with new skin cells. Scientists from Cambridge have looked at the way that skin is renewed.

4 Mar 2007

New understanding of drug addiction

The reason why some individuals may be predisposed to drug addiction has been discovered by scientists from the universities of Bristol and Cambridge.

1 Mar 2007

Researchers wake up viruses inside tumors to image and then destroy cancers

They say this strategy could offer a novel way of treating many cancers associated with Epstein-Barr, including at least four different types of lymphoma and nasopharyngeal and gastric cancers.

1 Mar 2007

New terms for describing gene products involved in microbial-host interactions

An international group of scientists has announced a major expansion of a lingua franca used to describe the activities of genes in living organisms.

28 Feb 2007

Aspirin offers help for Barrett's esophagus

Researchers at Fred Hutchinson Cancer Research Center have found that people with the most-aggressive form of Barrett's esophagus, a precancerous condition that can lead to esophageal cancer, may benefit the most from preventive therapy with aspirin, ibuprofen and other nonsteroidal anti-inflammatory drugs, or NSAIDs.

27 Feb 2007

Gene therapy shows promise as treatment for diseased lower limbs at risk for amputation

New research suggests that gene therapy is a safe treatment method to explore in patients whose lower limbs are at risk for amputation because of poor circulation caused by blocked blood vessels.

27 Feb 2007

DNA 'cages' to deliver drugs

By combining DNA macromolecules with polymers containing iron, molecular 'cages' can be made: porous structures capable of carrying and delivering drugs or DNA-fragments.

26 Feb 2007

Old drug pentylenetetrazole may improve learning and memory in Down syndrome victims

Researchers in the United States have discovered that an old drug once used to study epilepsy substantially improved learning and memory in mice with Down syndrome symptoms.

26 Feb 2007

Irregular heartbeat linked to genetic mutation

Every day for 10 years, a seemingly heart-healthy 53-year-old woman experienced rapid and irregular heartbeats. She had no personal or family history of hypertension or hyperthyroidism. She did not suffer from myocardial or coronary artery disease, or any abnormalities of the heart as best doctors and medical science could determine.

25 Feb 2007

microRNA directly regulates a gene implicated in human cancers

MicroRNAs are tiny snippets of RNA that can repress activity of a gene by targeting the gene's messenger RNA (which copies DNA information and starts the process of protein production).

22 Feb 2007

microRNAs undergo molecular editing with significant physiological consequences

Tiny molecules called microRNAs, only 19 to 21 nucleotides in length, are able to effectively silence sometimes large sets of genes. They do this by specifically binding to and neutralizing another form of RNA called messenger RNA, responsible for conveying the information from genes to the cellular machinery that uses that information to create proteins, the building blocks of the body.

22 Feb 2007

Why are African American women more likely than White women to die from breast cancer?

Why are African American women 1.5 to 2.2 times more likely than White women to die from breast cancer, despite their lower incidence of the disease? Is it solely because they have less access to medical care? Maybe not, according to a new analysis that will appear in an upcoming issue of the International Journal of Surgery.

22 Feb 2007

Abnormalities in eye movements and attention define risk for schizophrenia

A Binghamton University researcher has established a new framework to help determine whether individuals might be at risk for schizophrenia.

22 Feb 2007

How stem cells are regulated

Researchers from Biotech Research & Innovation Centre (BRIC) at University of Copenhagen have identified a new group of proteins that regulate the function of stem cells. The results are published in the new issue of Cell.

22 Feb 2007

Merck conducts trial of experimental HIV vaccine among sex workers in the Dominican Republic

The pharmaceutical company Merck is conducting Phase II clinical trials of its experimental HIV vaccine among 175 commercial sex workers in the Dominican Republic, the AP/Long Island Newsday reports.

21 Feb 2007

Experimental vector vaccine reduces stillbirths from cytomegalovirus

Researchers funded by the National Institutes of Health have developed an experimental vaccine that reduces stillbirths among rodents born to mothers infected with cytomegalovirus (CMV) - a common virus that can also cause mental retardation and hearing loss in newborn children who were infected in early fetal life.

21 Feb 2007

Reduced brain growth in alcoholics with family drinking history

The brains of alcohol-dependent individuals are affected not only by their own heavy drinking, but also by genetic or environmental factors associated with their parents- drinking, according to a new study by researchers at the National Institute on Alcohol Abuse and Alcoholism (NIAAA).

21 Feb 2007