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Hearing to focus on direct-to-consumer ads for prescription drugs

Officials for Pfizer, Johnson & Johnson, Merck and Schering-Plough on Thursday will testify at a House Energy and Commerce Oversight and Investigations Subcommittee hearing that Democrats hope will "lay the groundwork for future legislation to tighten controls on drug marketing," the Wall Street Journal reports.

8 May 2008

Rapid HIV tests highly effective in preventing mother-to-child HIV transmission in India

Rapid HIV tests have been found to be highly effective in preventing mother-to-child HIV transmission in clinical trials in India, according to a study published online Tuesday in PLoS Medicine, the Times of India reports (Sinha, Times of India, 5/7). For the study, the researchers used OraSure Technologies' OraQuick Advance Rapid HIV 1/2 Antibody Test (Derfel, Montreal Gazette, 5/6

8 May 2008

Study finds darapladib lowers biomarker for cardiovascular problems

Despite widespread use of cholesterol-lowering drugs, a significant number of cardiac patients continue to suffer heart attacks and stroke. Researchers theorize that high levels of an enzyme found in coronary plaques may be to blame, by making plaques more likely to rupture and block blood flow. The drug darapladib may offer a way to fight that risk, according to new research led by the University of Pennsylvania School of Medicine.

8 May 2008

Previously unseen switch regulates breast cancer response to estrogen

A tiny modification called methylation on estrogen receptors prolongs the life of these growth-driving molecules in breast cancer cells, according to research by scientists at Emory University's Winship Cancer Institute.

8 May 2008

Scientists identify key roadblock to gene expression

A team of scientists has provided, for the first time, a detailed map of how the building blocks of chromosomes, the cellular structures that contain genes, are organized in the fruit fly Drosophila melanogaster. The work identifies a critical stop sign for transcription, the first step in gene expression, and has implications for understanding how the AIDS virus regulates its genes. The findings will be published in the 15 May 2008 issue of the journal Nature

8 May 2008

Big differences in depressed brains

Depressed people may have far fewer of the receptors for some of the brain's "feel good" stress-response chemicals than non-depressed people, new University of Michigan Depression Center research shows.

8 May 2008

New key mechanism in cell division discovered

Scientists at the IFOM-IEO Campus have revealed the function of a protein that is indispensable for passing on an accurate copy of the genome from mother to daughter cells. This study, published in Cell, opens up new avenues of research to reduce the toxicity of chemotherapy in the treatment of cancer.

8 May 2008

Research reveals workings of anti-HIV drugs

Using ingenious molecular espionage, scientists have found how a single key enzyme, seemingly the Swiss Army knife in HIV's toolbox, differentiates and dynamically binds both DNA and RNA as part of the virus's fierce attack on host cells. The work is described this week (May 7) in the journal Nature.

8 May 2008

New deadly superbug Steno an ever-increasing threat

Scientists in the Britain say hospitals could be facing an increasing threat from yet another deadly bacterial infection with the potential to rapidly develop a resistance to drugs.

8 May 2008

ART drugs for pregnant women eradicates baby's risk of HIV

Researchers in Britain say a baby's risk of contracting HIV from its mother can be almost eradicated with the use of antiretroviral drugs.

8 May 2008

Lack of motivation in schizophrenia linked to brain chemical imbalance

A study of patients with psychotic illnesses such as schizophrenia suggests an alternative explanation for why many sufferers lack motivation. The research is described in BioMed Central's journal BMC Psychiatry.

8 May 2008

Nanoworms developed to target tumors

Scientists at UC San Diego, UC Santa Barbara and MIT have developed nanometer-sized "nanoworms" that can cruise through the bloodstream without significant interference from the body's immune defense system and-like tiny anti-cancer missiles-home in on tumors.

7 May 2008

Scientists discover how reverse transcriptase molecules interact with the HIV genome

Using ingenious molecular espionage, scientists have found how a single key enzyme, seemingly the Swiss army knife in HIV's toolbox, differentiates and dynamically binds both DNA and RNA as part of the virus' fierce attack on host cells. The work is described this week in the journal Nature.

7 May 2008

Study suggests caution on a new anti-obesity drug in children

A new class of anti-obesity drugs that suppresses appetite by blocking cannabinoid receptors in the brain could also suppress the adaptive rewiring of the brain necessary for neural development in children, studies with mice have indicated.

7 May 2008

Role of genetic components of dendritic cells could lead to more effective drugs

For the first time, researchers from the University of Pittsburgh School of Medicine have identified genetic components of dendritic cells that are key to asthma and allergy-related immune response malfunction. Targeting these elements could result in more effective drugs to treat allergic disorders and asthma, according to a study reported in the May edition of the journal Nature Medicine.

7 May 2008

Enkephalin pathway shows potential as new target for Alzheimer's

Alzheimer's disease (AD) is an incurable disease that is increasing in prevalence and will increase even more rapidly as the Baby Boom generation enters the age of highest risk. The available AD drugs are only partially effective in some patients. New strategies are urgently needed.

7 May 2008

Apotex receives final tender approval from Rwanda for vital AIDS drug

Apotex Inc., Canada's largest generic pharmaceutical company has successfully bid and been awarded a tender from the Rwandan Government for the life saving triple combination AIDS drug "Apo Triavir". Apotex is the first company to provide this medicine to Africa under the provisions of the Canadian Access to Medicines Regime (CAMR).

7 May 2008

New study shows how sounds are amplified in the inner ear

St. Jude Children's Research Hospital investigators have found that an electrically powered amplification mechanism in the cochlea of the ear is critical to the acute hearing of humans and other mammals. The findings will enable better understanding of how hearing loss can result from malfunction of this amplification machinery due to genetic mutation or overdose of drugs such as aspirin.

7 May 2008

New journal - Circulation: Heart Failure

The American Heart Association has named the editor of Circulation: Heart Failure, its second of the planned six-publication extension to the weekly flagship journal, Circulation: Journal of the American Heart Association. The journals will be published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health.

7 May 2008

Nitrates in vegetables protect against gastric ulcers

Vegetables that are rich in nitrates protect the stomach from damage. This takes place through conversion of nitrates into nitrites by the bacteria in the oral cavity and subsequent transformation into biologically active nitric oxide in the stomach. The Swedish researcher Joel Petersson has described the process, which also means that antibacterial mouthwashes can be harmful for the stomach.

7 May 2008