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Researchers report the first objective measurement of the brain deficit in congenital amusia

While their friends enjoy the latest hit tunes, people who are tone deaf – in scientific terms, suffering from amusia – are excluded from the fun, unable to tell one note from another. The disorder can be congenital, present from birth, or acquired following injury to the brain.

29 Aug 2005

Study reveals functional link between emotion processing centers in the brain and certain physiological processes relevant to disease

The mere mention of a stressful word like "wheeze" can activate two brain regions in asthmatics during an attack, and this brain activity may be associated with more severe asthma symptoms, according to a study by University of Wisconsin-Madison researchers and collaborators.

29 Aug 2005

Pigment explains why red heads are more at risk of skin cancer

A team of scientists have discovered that tiny chemical differences in how our skin reacts to ultraviolet light could explain why red heads are more likely to suffer skin cancer.

29 Aug 2005

Carbohydrate-based vaccine against cancer?

Couldn't we be immunized against cancer? This sounds like a dream, but is in fact a thoroughly realistic research goal. American researchers have now taken an important step forward in the development of a cancer vaccine.

29 Aug 2005

New method can detect 'mad cow' proteins in blood

Researchers at the University of Texas Medical Branch at Galveston (UTMB) have found a way to detect the malformed proteins in blood that cause "mad cow disease".

29 Aug 2005

Over 200 dead as Japanese encephalitis spreads further in India

The outbreak of Japanese encephalitis has now spread further in India's northern state of Uttar Pradesh.

29 Aug 2005

Malaria researchers find the parasite's housebreaking tool

Plasmodium falciparum, the most lethal malaria parasite, is a housebreaking villain of the red blood cell world. Like a burglar searching for a way in to his targeted premises, the parasite explores a variety of potential entry points to invade the red blood cells of its human victims. When a weak point is found, the intrusion proceeds.

28 Aug 2005

New vaccine protects more effectively against tuberculosis

Max Planck researchers have uncovered the mechanism by which the new genetically engineered tuberculosis vaccine functions.

28 Aug 2005

Both speaking and listening has detrimental effects on driving

New research shows that people have greater difficultly maintaining a fixed speed, or keeping their car safe in a single lane when performing tasks that simulated conversing on a mobile phone, than if they were driving without the distraction. Contrary to expectation, the speaking and listening were equally distracting.

28 Aug 2005

Long-term hormone therapy used earlier in menopause is associated with fewer wrinkles

Long-term hormone therapy used earlier in menopause is associated with fewer wrinkles and less skin rigidity in postmenopausal women, Yale School of Medicine researchers report in the August issue of Fertility and Sterility.

28 Aug 2005

Previously unknown family of plague virulence factors identified

Researchers at Duke University Medical Center have identified a previously unknown family of virulence factors that make the bacterium responsible for the plague especially efficient at killing its host.

28 Aug 2005

Continued race and sex disparities heart attack care

Differences based on race and sex in treatment patterns for hospitalized American heart attack patients have remained unchanged over an eight-year period, despite improvements in quality of heart attack care during this time, Emory and Yale School of Medicine researchers write in the August 18 issue of New England Journal of Medicine.

28 Aug 2005

Ways to avoid hazards of heart bypass under study

The heart-lung bypass machine that stills the heart while surgeons bypass an adult’s clogged arteries or repair a baby’s malformed heart can also trigger a potentially deadly inflammatory response.

28 Aug 2005

Inhibitory systems essential for controlling the pattern of activity in the cortex

Inhibitory systems are essential for controlling the pattern of activity in the cortex, which has important implications for the mechanisms of cortical operation, according to a Yale School of Medicine study in Neuron.

28 Aug 2005

Elevated blood lactate levels may indicate poor prognosis in liver failure

A new study on fulminant hepatic failure (FHF), a sudden and severe shutdown of the liver, examined ways of determining early on whether patients would benefit from a transplant as opposed to responding to other medical treatment. The results showed that elevated blood lactate levels indicate a poor prognosis and thus the need for a transplant.

28 Aug 2005

Ataxin-1 affects the development of the nervous system

In some neurological diseases, too much of what is usually a good thing can be bad, said researchers at Baylor College of Medicine in a report in this week's issue of the journal Cell.

28 Aug 2005

Immunity - another important function of the mitochondria

Researchers have discovered a surprise lurking inside mitochondria, the power plants that are present in every cell. It turns out that these powerhouses also contain a protein that triggers the immune system to attack viral invaders.

28 Aug 2005

Neurotransmitter orexin influences reward processing - associated with pleasure and reward pathways in the brain

Researchers at the University of Pennsylvania School of Medicine have discovered that the recently identified neurotransmitter orexin (also known as hypocretin) influences reward processing by activating neurons in the lateral hypothalamus region of the brain.

28 Aug 2005

Nitric oxide synthase plays a role in peripheral vascular disease

The enzyme nitric oxide synthase plays a role in peripheral vascular disease, a common disease that impairs the mobility of 25 percent of people over the age of 50, according to a Yale study in the Proceedings of the National Academy of Sciences (PNAS).

26 Aug 2005

UCI study helps identify one reason why women have lower stroke risk than men

Estrogen's role as an inhibitor of toxic-free radicals in cerebral blood vessels may be a key reason why premenopausal women have a lower stroke risk than men.

26 Aug 2005