Laboratory News and Research

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Scientists learn three-dimensional structure of enzyme in unusual virus

Biologists have determined the three-dimensional structure of an unusual viral enzyme that is required in the assembly of new viruses.

18 Sep 2007

Life on Mars experiment launched

Key components of a new approach to discover life on Mars were successfully launched into space Friday as part of a twelve-day, low-Earth orbit experiment to assess their survivability in the space radiation environment - a prelude future journeys to Mars.

18 Sep 2007

Genetic lab test for Warfarin sensitivity approved by FDA

The U.S. Food and Drug Administration today cleared for marketing a new genetic test that will help physicians assess whether a patient may be especially sensitive to the blood-thinning drug warfarin (Coumadin), which is used to prevent potentially fatal clots in blood vessels.

18 Sep 2007

Scientists synthesize DNA-based memory loop in yeast cells

Harvard Medical School researchers have successfully synthesized a DNA-based memory loop in yeast cells, findings that mark a significant step forward in the emerging field of synthetic biology.

17 Sep 2007

Powerful new discovery method speeds up gene discovery

Scientists will be able to pinpoint genetic causes of human diseases faster than ever thanks to a powerful new discovery method unveiled by the Southwest Foundation for Biomedical Research (SFBR) and an international team of researchers.

17 Sep 2007

Genetic variant explains why people react differently to smells

Why the same sweaty man smells pleasant to one person and repellant to another comes down to the smeller's genes.

17 Sep 2007

Androstenone determines whether male body odor smells pleasant

New research from Rockefeller University, performed in collaboration with scientists at Duke University in North Carolina, reveals for the first time that this extreme variability in peopl's perception of androstenone is due in large part to genetic variations in a single odorant receptor called OR7D4.

17 Sep 2007

Dendritic cells turn T cells into T regs

Regulatory T cells (also known as T regs) suppress some of the immune system's more inappropriate responses, preventing it from attacking the body's own tissues and stifling its activity once invading microbes have been fought off.

17 Sep 2007

N-cofilin molecule protects from neuronal disorders

Many neuronal disorders, including epilepsy, schizophrenia and lissencephaly – a form of mental retardation - result from abnormal migration of nerve cells during the development of the brain.

17 Sep 2007

China culls 33,000 ducks to contain bird flu outbreak

Authorities in China say a suspected outbreak of the H5N1 bird flu virus has been discovered among ducks in an outlying district of the southern city of Guangzhou.

17 Sep 2007

Study suggests brain tumors need treatment with multiple 'targeted' drugs

Researchers at Dana-Farber Cancer Institute have shown that several, rather than just one, cell-growth switches are simultaneously overactive in many brain tumors and other solid tumors, explaining why treatment with just a single "targeted" switch-blocking drug often yields disappointing results.

13 Sep 2007

Virus experts step closer to treatment for hepatitis C

Nine hundred of the world's hepatitis C experts are meeting in Glasgow this week to discuss the latest research into the disease at the 14th International Symposium on Hepatitis C Virus and Related Viruses.

13 Sep 2007

Potential vaccine target for chlamydia

Scientists at Children's Hospital of Pittsburgh of UPMC have identified a potential target for the development of a vaccine against Chlamydia trachomatis, the most prevalent sexually transmitted bacterial infection in the world.

13 Sep 2007

NASA and NIH to use International Space Station to answer questions about health and diseases

A Sept. 12 signing of a memorandum of understanding marked a key milestone for NASA and the National Institutes of Health in their long partnership to advance scientific discovery.

13 Sep 2007

Living, growing artificial heart-valve replacements for children

Infants and children receiving artificial heart-valve replacements face several repeat operations as they grow, since the since the replacements become too small and must be traded for bigger ones.

13 Sep 2007

New clues to cracking brain's neural code

Decoding the complex electrical signals that brain cells use to "talk" to each other is a new and important frontier in neuroscience, one that could revolutionize the diagnosis and treatment of neurological and psychiatric disease.

12 Sep 2007

Forces unite to tackle latest outbreak of Ebola in the Congo

The World Health Organisation (WHO) says another outbreak of the deadly Ebola virus in the Democratic Republic of Congo has killed at least five people.

12 Sep 2007

New insight into breast cancer development in high-risk women

Physicians who treat women with the breast cancer susceptibility gene BRCA1 often remove their patients' ovaries to eliminate the source of estrogen they believe fuels cancer growth.

12 Sep 2007

Fetal neurons play role in adult brain

Subplate neurons - once thought to die after directing the wiring of the cerebral cortex or gray matter - remain in the white matter of the adult brain in small numbers and maintain activity, communicating with other neurons in the brain said researchers from Baylor College of Medicine and the University of Alabama at Birmingham in a report that appears in today's issue of the Journal of Neuroscience

12 Sep 2007

Preventing enlarged heart reduces heart failure

For high-blood-pressure patients, preventing or reducing enlarged heart (left ventricular hypertrophy or LVH) reduces risk of heart failure. The study is published in the Sept. 4 Annals of Internal Medicine and led by physician-scientists at NewYork-Presbyterian Hospital/Weill Cornell Medical Center in New York City.

11 Sep 2007