Pharmacology News and Research

Latest Pharmacology News and Research

U.S. watchdog says Xenical should be withdrawn

A consumer watchdog group in the U.S., Public Citizen, has petitioned the U.S. Food and Drug Administration (FDA) to withdraw the prescription diet drug Xenical (orlistat) from the market; the group also want the FDA to refuse approval for the weight-loss pill to be made widely available over the counter.

11 Apr 2006

St. John's wort and Echinacea increase activity of enzyme in the liver and intestine

St. John's wort and Echinacea, two widely-used herbal preparations, have been found to increase activity of a specific enzyme in the liver and intestine, an enzyme involved in the metabolization of roughly one in every four pharmaceutical drugs on the market today, reports a clinical pharmacologist at Indiana University School of Medicine.

11 Apr 2006

Caenorhabditis elegans helps unravel mechanisms of hunger

In research that may have implications for studying eating disorders in humans, a worm the size of a pinhead is helping researchers at UT Southwestern Medical Center unravel the mechanisms of hunger.

6 Apr 2006

Vegetables slow growth of prostate cancer in mice

Chemicals in cruciferous vegetables, such as broccoli, watercress, cabbage and cauliflower, appear to stop human prostate cancer cells from growing in mice by affecting the expression of proteins, says a University of Pittsburgh Cancer Institute study

6 Apr 2006

New mechanism that initiates metastasis

Researchers have known for years that the enzyme MMP-9 plays a key role in the spread of colorectal cancer. Now, scientists at Jefferson Medical College in Philadelphia have found out how the enzyme helps initiate the process, known as metastasis.

4 Apr 2006

Enzyme released by cardiac mast cells during heart attack contributes to arrhythmia

In times of cardiac crisis, mast cells in the heart secrete a powerful enzyme, renin, that indirectly triggers dangerous arrhythmias, according to a team of researchers at the Weill Medical College of Cornell University in New York City.

4 Apr 2006

Proteomics yields new drug targets for treating cardiogenic shock

When it comes to cell signaling and bioregulation, it's tough to find a more important molecule than nitric oxide (NO). Dysfunction of NO-mediated signaling is thought to be a culprit in lethal cardiovascular conditions such as angina, and septic, cardiogenic and hemorrhagic shock; it may play a role in many other illnesses as well.

3 Apr 2006

Amoebe promote persistence of epidemic strains of MRSA

Scientists in the UK have found that a type of amoeba acts as an incubator for MRSA bacteria. As amoebae are often found in healthcare environments this discovery has implications for the infection control strategies adopted by hospitals.

31 Mar 2006

New device could cut chemotherapy deaths

A new method of delivering chemotherapy to cancer patients without incurring side effects such as hair loss and vomiting is being developed.

31 Mar 2006

Alcohol combined with energy drink won't make you less drunk

Scientists say that people who mix energy drinks with alcohol may feel more sober but that perception is a delusion.

28 Mar 2006

Cholesterol: the public policy implications of not doing enough

A major new report by think tank, The Stockholm Network, shows policy makers are not doing enough to tackle rising cholesterol levels.

28 Mar 2006

Effects of energy drink ingestion on alcohol intoxication

The combined use of alcohol and "energy drinks" such as Red Bull. have become increasingly popular among youth and young adults in recent years. Users often report reduced sleepiness and increased sensations of pleasure.

27 Mar 2006

Some patients may no longer need hypertensive medications after bariatric surgery

Severely obese patients may experience significant, long-term improvements in blood pressure as they lose substantial amounts of weight after gastric bypass surgery, thereby contributing to their overall health, according to a new University of Pittsburgh study, published in the March issue of the Archives of Surgery.

21 Mar 2006

Drug trial goes wrong and six end up intensive care

After taking part in a clinical trial of a new drug six men are now seriously ill in a north London hospital in the UK.

15 Mar 2006

Valproic acid may help slow the progression of dementia

Researchers have found that a common anticonvulsant drug improved cognitive function and appeared to restore nerve cells in the brains of patients with HIV-related dementia. The results of the Phase I clinical trial are published in the March issue of the scientific journal Neurology.

14 Mar 2006

New test for detecting small amounts of proteins in the blood

Researchers at the University of Pennsylvania School of Medicine have developed a paradigm-shifting method for detecting small amounts of proteins in the blood.

13 Mar 2006

Nematode hormone discovery may aid fight against parasitic disease

New research at UT Southwestern Medical Center shows that on a biochemical level, hormone-like molecules in tiny worms called nematodes work similarly to the way in which certain hormones work in humans - findings that one day may help eradicate worm infections that afflict a third of the world's population.

9 Mar 2006

G protein-coupled receptors cool passion of 'kiss and run' nerve cells

A new subtlety in the process of how the body's nervous system relays information may hinge on how "wet" the "kiss" is when one neuron fires a packet of neurotransmitter across a synapse to a receptive nerve cell.

9 Mar 2006

New way to study proteins in live cells

For the first time, Johns Hopkins researchers were able to easily jumpstart the activity of a well-known cancer protein in live cells with a small molecule, a strategy that pinpointed key players in the cancer process and can be used to determine new therapeutic targets.

9 Mar 2006

ATF2 protein may play a crucial role in cancer's ability to resist chemotherapy and radiation treatment

Researchers at Purdue University have discovered a molecular mechanism that may play a crucial role in cancer's ability to resist chemotherapy and radiation treatment and that also may be involved in Alzheimer's and heart disease.

9 Mar 2006