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Chronic exposure to estrogen impairs some cognitive functions

University of Illinois researchers report this week that chronic exposure to estradiol, the main estrogen in the body, diminishes some cognitive functions. Rats exposed to a steady dose of estradiol were impaired on tasks involving working memory and response inhibition, the researchers found.

3 Aug 2008

Methadone shows promise against leukemia

Researchers in Germany have discovered that methadone, an agent used to break addiction to opioid drugs, has surprising killing power against leukemia cells, including treatment resistant forms of the cancer.

3 Aug 2008

Disparities in prostate cancer treatment suggest ways to improve care

Quality of care varies greatly for the treatment of men with early-stage prostate cancer by region of the country and category of health care facility, suggesting the potential for improved patient outcomes with more standard treatment protocols, according to a new study that was published in the Aug. 1 issue of the Journal of Clinical Oncology (2008: Vol. 26, Issue 22).

3 Aug 2008

Survival of the fittest: even cancer cells follow the laws of evolution

Scientists from The Institute of Advanced Studies at Princeton and the University of California discovered that the underlying process in tumor formation is the same as for life itself-evolution.

3 Aug 2008

Immunotherapy shows promise in high-risk pediatric sarcomas

Based on a pilot study in children with sarcoma, researchers at the National Institutes of Health (NIH) believe that immunotherapy could prove beneficial in treating high-risk forms of this cancer.

3 Aug 2008

Variation in TNFAIP3 gene - cutting the brakes on the immune system

Your immune system may have more in common with a Corvette than you thought. When a virus or bacteria enters a human body, the immune system revs up to fight and expel the invader. Once the invader is gone, the body puts on the brakes to stop the immune response.

3 Aug 2008

Sleep apnea associated with increased risk of death

Sleep-disordered breathing (also known as sleep apnea) is associated with an increased risk of death, according to new results from the Wisconsin Sleep Cohort, an 18-year observational study supported by the National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health.

3 Aug 2008

Growth hormone reduces abdominal fat, cardiovascular risk in HIV patients on antiviral therapy

Low-dose growth hormone treatment reduced abdominal fat deposits and improved blood pressure and triglyceride levels in a group of patients with HIV lipodystrophy, a condition involving the redistribution of fat and other metabolic changes in patients receiving combination drug therapy for HIV infection.

3 Aug 2008

Fatal flaws in the way new drugs are tested and marketed

Americans are likely to be exposed to unacceptable side effects of FDA-approved drugs such as Vioxx in the future because of fatal flaws in the way new drugs are tested and marketed, according to research to be presented at the annual meeting of the American Sociological Association (ASA).

3 Aug 2008

Researchers examine link between prenatal vitamin D levels and schizophrenia

Researchers from UQ's Queensland Brain Institute are set to conduct a world-first trial into the link between prenatal vitamin D levels and schizophrenia prevalence.

3 Aug 2008

Modern living spells disaster for couples

British couples are spending "less time together than ever before", according to a relationship expert. A new survey shows that modern living is leaving little room in relationships for challenge and stimulation and little time for joint activities like exercise - or even talking.

3 Aug 2008

Smoking among child cancer survivors highest in most at risk group

Childhood cancer survivors who are most at risk of developing a second cancer are more likely to smoke than other childhood cancer survivors - reveals a Cancer Research UK study published in the Journal of the National Cancer Institute.

3 Aug 2008

Dissolvable ultra-fine, 3-dimensional scaffold offers a 'simple' solution to treating skin injuries

A revolutionary dissolvable scaffold for growing new areas of skin could provide a safer, more effective way of treating burns, diabetic ulcers and similar injuries.

3 Aug 2008

Genetic defect in skin cells leads to neurodermatitis, hay fever and asthma

New knowledge points to the fact that a genetically induced lack of filaggrin, a key protein of the skin barrier, plays a decisive role in the origin of allergies.

3 Aug 2008

New resource helps women with diabetes through healthy pregnancies

Pregnancy is a time of great excitement and anticipation. It also can be a time of anxiety, especially for women with type 1 or type 2 diabetes. Pregnancy in women who have diabetes is automatically considered high-risk. But a new, easy-to-read booklet has information to help women with diabetes experience safe, healthy pregnancies.

3 Aug 2008

Scientists develop ultra-sensitive optical protein sensor, a first for a salivary diagnostic test

For people who dislike needles, medical tests that require a drop of saliva instead of a vial of blood will one day make a trip to a doctor or dentist much easier. But as scientists now construct the first of these saliva tests for early signs of cancer and other diseases, they continue to push the technological envelope in interesting ways.

3 Aug 2008

Cancer patients not given enough information about survival benefits of palliative chemotherapy

Two thirds of cancer patients receive little or no information about the survival benefits of having palliative chemotherapy before making a decision about treatment, according to a study published today on bmj.com.

31 Jul 2008

Inherited form of hearing loss stems from gene mutation

Pat Phalin learned she had hearing loss at 30, when she volunteered to give hearing tests at her local school. The pupils heard sounds she could not hear.

31 Jul 2008

Bacterial vaginosis may increase risk of HIV infection

A common vaginal infection may make women more susceptible to contracting HIV, the virus that causes AIDS, University of North Carolina at Chapel Hill School of Public Health researchers have found.

31 Jul 2008

Rresearchers explain how previously ignored parts of HIV genome play key role in drug resistance

One of the major reasons that treatment for HIV/AIDS often doesn't work as well as it should is resistance to the drugs involved. Now, scientists at McGill University have revealed how mutations hidden in previously ignored parts of the HIV genome play an important role in the development of drug resistance in AIDS patients. Their study will be published Aug. 8 in the Journal of Biological Chemistry.

31 Jul 2008