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Rates of psychosis higher among minority groups in Britain

Both first- and second-generation immigrants to the United Kingdom appear to have a higher risk of psychoses than white British individuals, according to a report in the November issue of Archives of General Psychiatry , one of the JAMA/Archives journals.

4 Nov 2008

Rain may be linked to autism

Children living in counties with higher levels of annual precipitation appear more likely to have higher prevalence rates of autism, according to a report in the November issue of Archives of Pediatrics & Adolescent Medicine , one of the JAMA/Archives journals.

4 Nov 2008

Parasites that live inside cells use loophole to thwart immune system

St. Jude Children's Research Hospital scientists have discovered a mechanism by which intracellular pathogens can shut down one of the body's key chemical weapons against them: nitric oxide.

4 Nov 2008

Discovery of biomarkers for esophageal cancer before it develops

Rhode Island Hospital researchers have identified genetic proteins, also known as biomarkers, capable of distinguishing changes at the microscopic level that can signal a precancerous condition in the esophagus.

4 Nov 2008

New model helps estimate radiation skin doses during CT-guided interventional procedures

A new model that would allow interventional radiologists (radiologists who specialize in fine needle aspiration, fine needle biopsy and radiofrequency ablation) to better estimate patient radiation skin doses during CT guided interventional procedures has been developed according to a study performed at the Agios Savvas and Konstantopoulio Hospitals in Athens, Greece.

4 Nov 2008

Just one mutated SMAD4 allele is enough to cause cancer

Tumour suppressor genes do not necessarily require both alleles to be knocked out before disease phenotypes are expressed.

4 Nov 2008

Two new studies defend homeopathy

Two new studies conclude that a review which claimed that homeopathy is just a placebo, published in The Lancet, was seriously flawed.

4 Nov 2008

MRI reveals relationship between depression and pain

The brains of individuals with major depressive disorder appear to react more strongly when anticipating pain and also display altered functioning of the neural network that modifies pain sensitivity, according to a report in the November issue of Archives of General Psychiatry , one of the JAMA/Archives journals.

4 Nov 2008

Potential therapeutic target for acute leukemia types

Research using a new mouse model has led to the identification of a potential therapeutic target for a type of leukemia commonly associated with an unfavorable prognosis.

4 Nov 2008

Living with smokers may be associated with inadequate access to food

Children and adults living with adult smokers appear less likely to have daily access to enough healthy food compared with those living with non-smoking adults, according to a report in the November issue of Archives of Pediatrics & Adolescent Medicine.

4 Nov 2008

Liver transplant recipients face increased risks of developing cancer

A new Canadian study comparing cancer rates of liver transplant patients to those of the general population has found that transplant recipients face increased risks of developing cancer, especially non-Hodgkin's lymphoma and colorectal cancer.

4 Nov 2008

Human papillomavirus helps cervical and head and neck cancers resist treatment and grow and spread

The human papillomavirus (HPV) allows infected cervical and head and neck cancer cells to maintain internal molecular conditions that make the cancers resistant to therapy and more likely to grow and spread, resulting in a poor prognosis for patients, researchers with UCLA's Jonsson Cancer Center found.

4 Nov 2008

Long-term benefits of morphine treatment in infants confirmed

A recent study conducted by researchers at Georgia State University is the first of its kind to demonstrate that administration of preemptive morphine prior to a painful procedure in infancy blocks the long-term negative consequences of pain in adult rodents.

4 Nov 2008

New study looks at relationship between alcohol-outlet density and intimate partner violence

Researchers know that the number of alcohol outlets in a given geographic area, referred to as alcohol-outlet density (AOD), is associated with a number of adverse health and social consequences.

4 Nov 2008

Diabetes and high blood pressure shorten lifespan in Alzheimer's disease

People with Alzheimer's disease who also have diabetes or high blood pressure may die sooner than people without such disorders, according to a study published in the November 4, 2008, issue of Neurology, the medical journal of the American Academy of Neurology.

4 Nov 2008

Cold Spring Harbor Protocols features organ and cell culture methods

Understanding the function of organs like the brain, kidney, and reproductive tissues requires experimental systems that allow for the study and manipulation of developing cells and tissues in the laboratory.

4 Nov 2008

New clinical study will help doctors assess abnormal bleeding

How do you know if you bleed normally? Scientists at The Rockefeller University Hospital's Center for Clinical and Translational Science (CCTS) aim to answer that question more definitively with the launch of an assessment tool designed to help physicians and researchers more accurately determine what is inside and outside the normal range of bleeding symptoms.

3 Nov 2008

No need for RNA

Not all enzymes that are assumed to require an RNA component in order to function do actually contain RNA. This surprising discovery was made during a project supported by the Austrian Science Fund FWF that focussed on the enzyme RNase P.

3 Nov 2008

Parasites that live inside cells use loophole to thwart immune system

St. Jude Children's Research Hospital scientists have discovered a mechanism by which intracellular pathogens can shut down one of the body's key chemical weapons against them: nitric oxide. The researchers found that the microbes block nitric oxide production by subverting the biochemical machinery used by immune cells called macrophages to produce the chemical.

3 Nov 2008

Diagnosis of pelvic inflammatory disease predicts high risk and high rate of further infection in teenagers

A study among Baltimore inner-city teenage girls treated for pelvic inflammatory disease shows they are highly vulnerable to subsequent sexually transmitted infections (STI) - sometimes within a few weeks or months of their treatment.

3 Nov 2008