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Entecavir can compromise HIV treatment

Treating hepatitis B patients with the drug entecavir can cause those who are also infected with HIV to become resistant to two of the most important drugs in the anti-HIV arsenal, according to a new report in the New England Journal of Medicine.

23 Jun 2007

Drug warning prompts treatment changes for those infected with hepatitis B and HIV

Cross-resistance alarms raised earlier this year by Johns Hopkins researchers about a widely used antiviral therapy for hepatitis B liver infections have prompted swift treatment revisions by the drug's maker and governmental agencies.

23 Jun 2007

Medicare Part D plans vary across U.S.

An examination of Medicare Part D plans in California and Hawaii reveals wide variations in drug formularies, but indicates that for many classes of drugs, it is possible to find at least one or more drug that is covered by nearly all Part D plans, according to a study in the June 20 issue of JAMA: The Journal of the American Medical Association

20 Jun 2007

New uderstanding of how enzymes work

In a publication selected as a "2007 Hot Article" by the journal Biochemistry , University at Buffalo chemists report the discovery of a central mechanism responsible for the action of the powerful biological catalysts known as enzymes.

20 Jun 2007

New targets for Leishmaniasis

A comparison of three parasite species that cause Leishmaniasis has identified a small number of genes, many new to biology, that will provide a framework to target the search for new treatments.

19 Jun 2007

Pepsin associated with acute rejection of a lung transplant

Researchers in the United Kingdom have demonstrated that high levels of pepsin, a digestive enzyme that is a marker for gastric aspiration, are associated with acute rejection of a lung transplant.

19 Jun 2007

BSD Medical files patent for 'smart bomb' delivery of chemotherapy in breast tumors

BSD Medical Corp. has filed a patent for a new non-invasive phased array breast treatment applicator developed to selectively heat breast cancer tumors.

19 Jun 2007

Alzheimer's-associated enzyme beta-secretase can disrupt neural activity in the brain

An enzyme involved in the formation of the amyloid-beta protein associated with Alzheimer's disease can also alter the mechanism by which signals are transmitted between brain cells, the disruption of which can cause seizures.

19 Jun 2007

New understanding of how the DNA helix replicates

A team of researchers led by University of Virginia Health System geneticists has uncovered a major secret in the mystery of how the DNA helix replicates itself time after time.

18 Jun 2007

Aspirin resistance

Aspirin is used by millions of patients for the prevention and treatment of coronary artery disease, the single leading cause of death in the world.

17 Jun 2007

New area of stroke drug discovery for the 22nd century

A new therapy to re-activate silenced genes in patients who suffer from neurodegenerative diseases or stroke is being developed by researchers at the University of Illinois at Chicago and Cornell University.

17 Jun 2007

Secrets of chromosome movement revealed

Investigators at St. Jude Children's Research Hospital have used the lowly yeast to gain insights into how a dividing human cell ensures that an identical set of chromosomes gets passed on to each new daughter cell.

17 Jun 2007

Gastric bypass surgery gets people 'drunk' faster

An Oprah Winfrey-inspired study done by researchers at the Stanford University School of Medicine has found that patients who undergo gastric bypass surgery to lose weight will get drunk faster and take longer to get sober.

17 Jun 2007

New era of treatment for rheumatoid arthritis

Three new drugs for rheumatoid arthritis (RA) have ushered in a new era of treatment for this difficult and debilitating condition.

16 Jun 2007

The unexpected connection of two gene regulation mechanisms points to new ways for the fight against leukemia

When the activity of individual genes it is longer required, there are two main mechanisms responsible for the “switching off”, mainly DNA methylation and the Polycomb protein complex. Sometimes, these mechanisms lose their efficiency and some of the genes that should be "switched off" remain active.

16 Jun 2007

New model shows how simple chemical and physical processes may have laid the foundation for life

Before life emerged on earth, either a primitive kind of metabolism or an RNA-like duplicating machinery must have set the stage, so experts believe.

15 Jun 2007

Researchers shed light on shrinking of chromosomes

A human cell contains an enormous 1.8 metres of DNA partitioned into 46 chromosomes.

15 Jun 2007

Double-duty nanoparticles overcome drug resistance in tumors

Cancer cells, like bacteria, can develop resistance to drug therapy. In fact, research suggests strongly that multidrug resistant cancer cells that remain alive after chemotherapy are responsible for the reappearance of tumors and the poor prognosis for patients whose cancer recurs.

14 Jun 2007

Eurand files NDA for Zentase for the treatment of exocrine pancreatic insufficiency

Eurand has announced that Eurand Pharmaceuticals Ltd. initiated the rolling submission of its new drug application (NDA) with the U.S. Food and Drug Administration (FDA) for Zentase for the treatment of Exocrine Pancreatic Insufficiency (EPI). Zentase (formerly EUR-1008), the company's lead product candidate, has been granted fast-track designation by the FDA.

14 Jun 2007

What makes people susceptible to rheumatoid arthritis?

Peter K. Gregersen, MD, stares at x-rays of hands, searching out the telltale signs of inflamed joints and wrists from his research subjects with rheumatoid arthritis. With these clinical features at his side, he turns to the basic building blocks of life , the human genome , to figure out what makes these people susceptible to the disabling inflammatory condition.

14 Jun 2007