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Heat shock protein 90 helps explain the speed of evolution

Heat shock protein 90 (HSP90) has a greater impact on the appearance of new traits than previously expected, according to two articles published in the Proceedings of the National Academy of Science (PNAS) by researchers in Whitehead Member Susan Lindquist's lab and their colleagues in Christine Queitsch's lab at Harvard University's FAS Center for Systems Biology.

20 Feb 2008

Scientists shed light on long-distance signaling in developing neurons

A longstanding puzzle in neurodevelopment may have yielded up a key secret.

20 Feb 2008

New techniques for detecting blood clots/air bubbles in arteries

New techniques for detecting emboli (harmful blood clots/air bubbles in arteries) developed at the University of Leicester have played a major role in dramatically reducing stroke rates after carotid endarterectomy.

20 Feb 2008

Researchers examine animal antibiotic resistance, possible human link

It's bad enough when pathogenic bacteria work their way into the animal food supply.

20 Feb 2008

Research aims to improve method of synthesizing carbon rings

A Valparaiso University chemistry professor and his students are working to develop an improved method of synthesizing carbon rings that are essential components of thousands of organic molecules used by humans.

20 Feb 2008

Purdue tackles large public health issue at indoor swimming pools

Researchers at Purdue University have determined how certain airborne contaminants are created when chlorine reacts with sweat and urine in indoor swimming pools, a step toward learning how to reduce the formation of "volatile disinfection byproducts" that cause respiratory irritation.

20 Feb 2008

Tumor blood vessels can develop from precancerous stem cells

Tumors require a blood supply to grow, but how they acquire their network of blood vessels is poorly understood.

20 Feb 2008

Men who are overweight or obese have lower PSA values, even before they get prostate cancer

Men who are overweight or obese have lower concentrations of prostate-specific antigen (PSA) in their blood than their normal-weight counterparts, according to a new study led by Duke University Medical Center researchers.

20 Feb 2008

Optical tool detects biomarkers in breath

Exhale on a cold winter day and you will see the water vapor coming out of your mouth.

20 Feb 2008

More needs to be done for preemie healthcare

A recent survey of 202 neonatologists and pediatricians, which examined current attitudes and practices when caring for the specialized health needs of preterm infants, revealed that most respondents (70 percent) feel the United States' healthcare system does not place enough emphasis on or dedicate enough resources to preventive healthcare for preemies.

20 Feb 2008

Mix of endocrine disrupters a dangerous cocktail

Endocrine-disrupting chemicals, which are harmless individually in small doses, can together be a dangerous cocktail.

20 Feb 2008

The debut of second generation memory care

Researchers and clinicians from the Indiana University School of Medicine and the Regenstrief Institute are blurring the distinction between lab and clinic as they debut the second generation of memory care.

20 Feb 2008

More support needed for menopausal women in rural areas

Good social support and reliable information are essential for women who find menopause an intense and life-altering experience, especially if they live in rural areas where health services are patchy or inaccessible.

20 Feb 2008

Study finds increase in thyroid diseases risk from radiation exposure at Chernobyl

Persons exposed to radioactive fallout from the Chernobyl accident as children and adolescents have an increased risk of follicular adenoma or benign tumor of the thyroid gland, according to researchers at Columbia University Mailman School of Public Health.

20 Feb 2008

Listening to music in the early stages after a stroke can improve patients' recovery

Researchers from Finland found that if stroke patients listened to music for a couple of hours a day, their verbal memory and focused attention recovered better and they had a more positive mood than patients who did not listen to anything or who listened to audio books.

20 Feb 2008

Bacteria dupe human immune system by using invisibility cloak

Scientists at the University of York have characterised an important new step in the mechanism used by bacteria to evade our immune system.

20 Feb 2008

In-hospital heart attacks during the night or weekends may lower survival rate

Patients who have an in-hospital cardiac arrest at night or on the weekend have a substantially lower rate of survival to discharge than hospitalized patients who experience a cardiac arrest during day/evening times on weekdays, according to a study in the February 20 issue of JAMA: The Journal of the American Medical Association.

20 Feb 2008