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Changes in hormonal status have no impact on women's voice parameters

In recent years several studies have suggested that women's voices change at different times over the menstrual cycle, with the tone rising as ovulation approaches. Now a study conducted by researchers at the West Texas A&M University in which women's voices were subjected to computerized acoustical analysis contradicts those findings.

12 Apr 2011

Rockefeller University professor earns recognition in developmental psychobiology

Weill Cornell Medical College and the Columbia University College of Physicians and Surgeons have announced that The Mortimer D. Sackler, M.D. Prize for Distinguished Achievement in Developmental Psychobiology has been awarded to The Rockefeller University's Dr. Fernando Nottebohm for his seminal work in songbirds that has led to the discovery of neuronal replacement.

12 Apr 2011

IncP-1 plasmids can transport antibiotic resistance genes between bacterial species

The part of bacterial DNA that often carries antibiotic resistance is a master at moving between different types of bacteria and adapting to widely differing bacterial species, shows a study made by a research team at the University of Gothenburg in cooperation with Chalmers University of Technology. The results are published in an article in the scientific journal Nature Communications.

12 Apr 2011

Sea squirt study unravels complex mechanisms underlying heart defects

Each year in the U.S., approximately 40,000 babies are born with a heart defect. Without the proper diagnosis and treatment, many of these babies would die before their first birthday, according to Dr. Scott Klewer, a cardiologist at the UA's College of Medicine.

12 Apr 2011

Scientists develop new method for enzyme immobilization

Virtually all processes in the human body rely on a unique class of proteins known as enzymes. To study them, scientists want to attach these molecules to surfaces and hold them fast, but this can often be a tricky undertaking.

12 Apr 2011

Fat in pistachios may not be readily absorbed by the body

In a first-of-its-kind study with nuts, randomized controlled-feeding research conducted by the Agricultural Research Service (ARS) of the United States Department of Agriculture (USDA) found that fat in pistachios may not be completely absorbed by the body. The findings indicate that pistachios may actually contain fewer calories per serving than originally thought - further validating pistachios as one of the lowest calorie nuts with 160 calories per 30 gram serving (approximately 1 ounce).

12 Apr 2011

Alternative mechanism through which tumor cells become invasive

Researchers at the Hebrew University of Jerusalem have discovered a previously unknown mechanism whereby tumor cells invade normal tissues, spreading cancer through various organs.

12 Apr 2011

Insight into neurodegenerative diseases

For years, researchers in genome stability have observed that several neurodegenerative diseases-including Huntington's disease-are associated with cell-killing proteins that are created during expansion of a CAG/CTG trinucleotide repeat.

12 Apr 2011

Periodontal ligament stem cells most efficacious among dental tissue-derived stem cells

Periodontal ligament stem cells (PDLSCs) have been found to be the most efficacious of three kinds of clinically tested dental tissue-derived stem cells, reports a study published in the current issue of Cell Transplantation (20:2), freely available on-line at http://www.ingentaconnect.com/content/cog/ct/.

12 Apr 2011

Early uMSC transplantation may treat lupus nephritis

Human umbilical cord blood-derived mensenchymal stem cells have been found to offer benefits for treating lupus nephritis when transplanted into mouse models of systemic lupus erythematosus.

12 Apr 2011

Novel drug holds potential against resistant chronic myeloid leukemia

A study from Tufts Medical Center researchers published today finds that a novel drug shows promise for treating leukemia patients who have few other options because their disease has developed resistance to standard treatment.

12 Apr 2011

Israeli scientists identify genetic cause of hereditary spastic paraparesis

In a research collaboration blind to affairs of politics, ethnicity, and religion, an international team led by Israeli scientists has identified the genetic cause of a neurological disorder afflicting members of a Palestinian family.

12 Apr 2011

Targeted photodynamic therapy eradicates some models of cancer

Targeted photodynamic therapy can completely eradicate some models of cancer, according to the latest research by UK and Swiss scientists, published in the current issue of the British Journal of Cancer.

12 Apr 2011

Study to discover mysterious biological cause of Gulf War Illness

For nearly two decades following the 1991 Gulf War, doctors noticed a trend in many of veterans of that conflict: an unexplainable cluster of symptoms including but not limited to chronic fatigue, memory loss, and depression. It wasn't until 2008 that a scientific panel from the U.S. Department of Veterans Affairs concluded that a third of American troops who served in the Gulf War were suffering from combinations of these symptoms, now recognized collectively as Gulf War Illness (GWI).

12 Apr 2011

African-American adults with CVD may benefit from 'sunshine vitamin'

In recent years supplementation with Vitamin D has been shown to reduce the risk of cardiovascular disease in people who are deficient in the vitamin.

12 Apr 2011

Strong bitter taste can cause nausea: Research

Swallow the good, spit out the bad. A new study from the Monell Center highlights the vital role taste plays as the body's gatekeeper. The research shows that strong bitter taste in and of itself can cause people to both report the sensation of nausea and display a pattern of stomach activity characteristic of actual nausea.

12 Apr 2011

Study shows neutralizing antibodies to C5a protein may prevent heart failure

New research published online in The FASEB Journal details research in rats and mice that offers hope for stopping the devastating, and often fatal, effects of sepsis in humans. In the study, University of Michigan researchers show how neutralizing the effects of a key protein fragment, called C5a, used by the immune system to attract white blood cells may ultimately prevent heart failure.

12 Apr 2011

Stress wreaks havoc on bacteria in digestive system

Stress not only sends the human immune system into overdrive - it can also wreak havoc on the trillions of bacteria that work and thrive inside our digestive system.

12 Apr 2011

Pharmacological manipulation of DKK1, DKK2 can treat various vascular diseases

Angiogenesis, the development of new blood vessels, is required during embryonic development and wound healing, as well as during disease processes such as tumor growth. The signals that direct angiogensis are incompletely understood, but could represent novel targets for the development of therapies that promote or inhibit this process.

12 Apr 2011

Scientists develop new method to detect virus presence in cells

Scientists at the Naval Research Laboratory Center for Bio-Molecular Science and Engineering have developed a method to detect the presence of viruses in cells and to study their growth.

12 Apr 2011