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“Life force” linked to body’s ability to withstand stress

Our ability to withstand stress-related, inflammatory diseases may be associated, not just with our race and sex, but with our personality as well, according to a study published in the July issue of the journal Brain, Behavior and Immunity. Especially in aging women, low levels of the personality trait extraversion may indicate that blood levels of a key inflammatory molecule have crossed over a threshold linked to a doubling of risk of death within five years.

17 Jun 2009

Cannabis smoke damages DNA – cancer risks

A new study published by University of Leicester researchers has found "convincing evidence" that cannabis smoke damages DNA in ways that could potentially increase the risk of cancer development in humans.

16 Jun 2009

Marker in blood may explain susceptibility to interstitial cystitis

A marker in the blood of both cats and humans that was identified in a recent study might signal both species' susceptibility for a painful bladder disorder called interstitial cystitis, a condition that is often difficult to diagnose.

16 Jun 2009

Inflammation of microglia may not be associated with dementia in Alzheimer's disease

The idea that anti-inflammatory drugs might protect people struggling with dementia from Alzheimer's disease has received a blow with the online release of a study of human brain tissue in Acta Neuropathologica.

15 Jun 2009

Don't stress when the going gets tough - you'll go gray!

A study by Japanese researchers has revealed that a certain kind of stress damages the hair - they say "genotoxic stress" damages DNA by depleting the melanocyte stem cells (MSCs) within hair follicles that are responsible for making the pigment-producing cells.

14 Jun 2009

Senate passes landmark bill: FDA to regulate tobacco

The New York Times reports that "more than four decades after the surgeon general declared smoking a health hazard, the Senate on Thursday cleared the final hurdle to empowering federal officials to regulate cigarettes and other forms of tobacco for the first time.

13 Jun 2009

Scientists create simple chemical system that mimics DNA

A team of Scripps Research scientists has created a new analog to DNA that assembles and disassembles itself without the need for enzymes. Because the new system comprises components that might reasonably be expected in a primordial world, the new chemical system could answer questions about how life could emerge.

13 Jun 2009

Certain pesticides double the risk of blood disorder

A study involving 678 individuals who apply pesticides, culled from a U.S. Agricultural Health Study of over 50,000 farmers, recently found that exposure to certain pesticides doubles one's risk of developing an abnormal blood condition called MGUS (monoclonal gammopathy of undetermined significance) compared with individuals in the general population.

13 Jun 2009

Genotoxic stress makes your hair go gray

Those pesky graying hairs that tend to crop up with age really are signs of stress, reveals a new report in the June 12 issue of Cell, a Cell Press publication.

12 Jun 2009

Cocaine and heroin increase permeability of the placenta

Cocaine and heroin increase permeability of the placenta. Researchers writing in BioMed Central's open access journal Reproductive Biology and Endocrinology have shown that exposure to the drugs causes an increase in the passage of some chemicals into the fetus.

10 Jun 2009

Dioxins in food chain linked to breastfeeding problems

Exposure to dioxins during pregnancy harms the cells in rapidly-changing breast tissue, which may explain why some women have trouble breastfeeding or don’t produce enough milk, according to a University of Rochester Medical Center study.

9 Jun 2009

Diabetic medication 'glibenclamide' may prevent nicotine-induced SIDS

According to researchers at McMaster University, exposure of the fetus to nicotine results in the inability to respond to decreases in oxygen - known as hypoxia - which may result in a higher incidence of SIDS.

3 Jun 2009

Activated stem cells in damaged lungs could be first step toward cancer

Stem cells that respond after a severe injury in the lungs of mice may be a source of rapidly dividing cells that lead to lung cancer, according to a team of American and British researchers.

26 May 2009

Diabetes drug pioglitazone shows potential against multiple sclerosis

A drug currently FDA-approved for use in diabetes shows some protective effects in the brains of patients with relapsing remitting multiple sclerosis, researchers at the University of Illinois at Chicago College of Medicine report in a study currently available online in the Journal of Neuroimmunology.

26 May 2009

Researchers gain ground in efforts to fight parasite infection

New findings by researchers UT Southwestern Medical Center are accelerating efforts to eradicate worm infections that afflict a third of the world's population.

26 May 2009

Scientists discover stem cell clue to lung cancer development

Cancer Research UK scientists have revealed that stem cells become 'activated' in severely damaged lungs and help to repair them, according to a study published in the Proceeding of the National Academy of Sciences today (Monday).

26 May 2009

Private well water should be tested yearly to reduce health risks to children

Private well water should be tested yearly, and in some cases more often, according to new guidance offered by the American Academy of Pediatrics (AAP).

26 May 2009

Arsenic exposure linked to influenza A (H1N1) susceptibility

The ability to mount an immune response to influenza A (H1N1) infection is significantly compromised by a low level of arsenic exposure that commonly occurs through drinking contaminated well water, scientists at the Marine Biological Laboratory (MBL) and Dartmouth Medical School have found.

20 May 2009

NIH to develop therapeutics for rare and neglected diseases

The National Institutes of Health is launching the first integrated, drug development pipeline to produce new treatments for rare and neglected diseases. The $24 million program jumpstarts a trans-NIH initiative called the Therapeutics for Rare and Neglected Diseases program, or TRND.

20 May 2009

Decoding the human brain

'Nature' journals are synonymous with the very best in research. Earlier this year, an article by University of Leicester bioengineer Professor Rodrigo Quian Quiroga not only appeared in Nature Reviews Neuroscience, but also featured on the magazine cover. In the article, Prof. Quian Quiroga and co-author Dr. Stefano Panzeri discuss new methodologies that are enabling scientists to better understand how our brain processes information.

19 May 2009