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Women should continue to exercise during pregnancy

Obstetricians and gynecologists need to do a better job of encouraging women with uncomplicated pregnancies to exercise, a Saint Louis University School of Public Health study concludes.

14 Nov 2005

Findings imply that cognitive difficulties can be detected early

The rate of premature births in the United States is on the rise, with one in eight babies born before 37 weeks gestation in 2003, a 13 percent increase from 10 years ago.

14 Nov 2005

Large portions push people to overeat

According to a new Cornell University study, when moviegoers were served stale popcorn in big buckets, they ate 34 percent more than those given the same stale popcorn in medium-sized containers.

14 Nov 2005

How parents treat their children can affect an adolescent's risk of depression

How parents treat their adolescent children, including the way they discipline them, as well as the kind of life events and social interactions teenagers experience, can affect an adolescent's risk of depression, regardless of any genetic predisposition towards the mental illness.

14 Nov 2005

Fundamental flaws in many medical studies must be fixed in order to catch signs of harm

Only by analyzing results using a statistical method that considers several factors at once -- for instance, overall heart attack risk, rather than just individual risk factors such as age -- will researchers truly be able to see how the risks and benefits of a treatment vary from patient to patient, the study suggests.

14 Nov 2005

Discovery of novel form of regulation of the GLI1 gene

The Quaking gene, first described as a mutation in mice that causes rapid tremor, is thought to suppress tumor formation and protect humans from cancer.

14 Nov 2005

Molecular origins of diabetes

An unexpected twist to a discovery reported just two months ago may significantly improve our understanding about the molecular origins of diabetes.

14 Nov 2005

First step in exploring the GnRH reproduction-related circuitry in the brain

Howard Hughes Medical Institute researchers have discovered a vast network of neurons in the brain of mice that governs reproduction and controls the effects of reproductive status on other brain functions.

14 Nov 2005

People taking highly active antiretroviral therapy for HIV infection remain susceptible to tuberculosis

...though the risk is lower than for HIV-infected patients not on HAART, according to an article in the Dec. 15 issue of Clinical Infectious Diseases, now available online.

13 Nov 2005

Researchers can now identify patients likely to respond to cancer drug therapy

Researchers at UCLA's Jonsson Cancer have identified key characteristics in certain deadly brain tumors that make them 51 times more likely to respond to a specific class of drugs than tumors in which the molecular signature is absent.

13 Nov 2005

Number of men interested in donating sperm has declined significantly

A study by a leading UK fertility centre has found that the numbers of men - especially students - coming forward as potential sperm donors fell sharply after 2000, almost certainly due to growing awareness that changes in the law would be removing the right to anonymity.

13 Nov 2005

Loneliness may be heredity

Heredity helps determine why some adults are persistently lonely, research co-authored by psychologists at the University of Chicago shows.

13 Nov 2005

University of Alberta researchers pioneer gene therapy to restore alveoli and lung capillaries in damaged rat lungs

The good news is that medical advances in perinatal care have allowed us to save many more premature babies. The bad news is they're often at risk of developing bronchopulmonary dysplasia--a chronic lung disease caused by having to place the tiny infants on ventilators and oxygen-rich therapy for acute respiratory failure.

13 Nov 2005

New understanding of the disease process involved in atherosclerosis

The progression of the artery-clogging disease atherosclerosis is linked to the inability of specialized bone marrow cells to continuously repair damage to the arterial lining, Duke University Medical Center researchers have demonstrated.

13 Nov 2005

How protein-enriched meals decrease hunger and reduce eating

Researchers have uncovered new evidence to explain the observation that diets rich in protein stunt the appetite, according to a report in the November Cell Metabolism.

13 Nov 2005

Link between diet and epileptic seizures studied

Although the high-fat, calorie-restricted ketogenic diet (KD) has long been used to prevent childhood epileptic seizures that are unresponsive to drugs, physicians have not really understood exactly why the diet works.

13 Nov 2005

Lifelong exercise decreases cellular aging in the brain

In the first study to show that lifelong exercise decreases cellular aging in the brain, scientists from the McKnight Brain Institute of the University of Florida say that moderately active rats have healthier DNA and more robust brain cells than their less active counterparts. The research was presented at the Society for Neuroscience's 35th annual meeting in Washington, D.C.

13 Nov 2005

Maternal malaria and gravidity interact to modify infant susceptibility to malaria

Every year at least 30 million women in malaria-endemic areas of Africa become pregnant. Many of them develop placental malaria, a pregnancy-specific form of the disease, which frequently results in low birth weight of the child.

13 Nov 2005

Genetic factors versus environmental factors in assessing malaria risk

Humans exposed to malaria get infected and sick to varying degrees, and some of that variation is due to differences in genetic makeup between individuals. But how important are genetic factors compared with environmental ones?

13 Nov 2005

Adverts for SSRI antidepressants misleading

Consumer ads for a class of antidepressants called SSRIs often claim that depression is due to a chemical imbalance in the brain, and that SSRIs correct this imbalance, but these claims are not supported by scientific evidence, say researchers in PLoS Medicine.

13 Nov 2005