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Women who smoke during pregnancy risk delivering aggressive kids according to a new Canada-Netherlands study published in the journal Development and Psychopathology. While previous studies have shown that smoking during gestation causes low birth weight, this research shows mothers who light up during pregnancy can predispose their offspring to an additional risk: violent behaviour.

Cell Transplantation - The Regenerative Medicine Journal, the number two journal ranked by impact factor in the field of transplantation, has become an "open access" journal from the 1st January 2009, starting with volume 18, making it available on the World Wide Web without subscription to researchers and clinicians as well the public and members of the media. The journal's new open access policy aligns it with the policies of a growing number of funding agencies, including the National Institutes of Health and the Wellcome Foundation, said journal coeditor-in-chief Dr. Paul Sanberg, Distinguished Professor at University of South Florida Health.

The discovery more than a decade ago of leptin, an appetite-suppressing hormone secreted by fat tissue, generated headlines and great hopes for an effective treatment for obesity. But hopes dimmed when it was found that obese people are unresponsive to leptin due to development of leptin resistance in the brain. Now, researchers at Children's Hospital Boston report the first agents demonstrated to sensitize the brain to leptin: oral drugs that are already FDA-approved and known to be safe. Findings were published January 7 by the journal Cell Metabolism.

One of the current handicaps of cancer treatments is the difficulty of aiming these treatments at destroying malignant cells without killing healthy cells in the process. But a new study by McMaster University researchers has provided insight into how scientists might develop therapies and drugs that more carefully target cancer, while sparing normal healthy cells

Researchers from Case Western Reserve University and Yale University have made a significant advancement in understanding the cause behind why some pregnant women suffer from inflammations in the inner womb without any signs of an infection.

A new study reveals critical molecular mechanisms associated with the development and progression of human neuroblastoma, the most common cancer in young children. The research, published by Cell Press in the January 6th issue of the journal Cancer Cell, may lead to development of future strategies for treatment of this aggressive and unpredictable cancer.

If you're an asthma sufferer, make sure the medical history at your doctor's office includes your employment and recreation plans. A new screening tool developed by Tel Aviv University researchers may save you a trip to the emergency room later on.

Aquaculture production of seafood will probably remain the most rapidly increasing food production system worldwide through 2025, according to an assessment published in the January 2009 issue of BioScience. The assessment, by James S. Diana of the University of Michigan at Ann Arbor, notes that despite well-publicized concerns about some harmful effects of aquaculture, the technique may, when practiced well, be no more damaging to biodiversity than other food production systems. Moreover, it may be the only way to supply growing demand for seafood as the human population increases.

A single tumor-suppressing gene is a key to understanding, and perhaps killing, dormant ovarian cancer cells that persist after initial treatment only to reawaken years later, researchers at The University of Texas M. D. Anderson Cancer Center report in the December Journal of Clinical Investigation.

A study in the Jan. 1 issue of the journal Sleep indicates that the indirect costs of untreated insomnia are significantly greater than the direct costs associated with its treatment. The study estimates that the total annual cost of insomnia in the province of Quebec is 6.5 billion Canadian dollars, representing about one percent of the province's $228.5 billion in gross domestic product for 2002.

Arizona State University researchers Hao Yan and Yan Liu imagine and assemble intricate structures on a scale almost unfathomably small. Their medium is the double-helical DNA molecule, a versatile building material offering near limitless construction potential.

Using tiny gold particles and infrared light, MIT researchers have developed a drug-delivery system that allows multiple drugs to be released in a controlled fashion.

Variants of numerous DNA repair genes initially appeared to be statistically significantly associated with cancer risk in epidemiological studies. When the data from individual studies are pooled, however, few DNA repair gene variants appear truly associated with increased cancer risk, according to a field synopsis published in the December 30 online issue of the Journal of the National Cancer Institute.

The Bronx Zoo-based Wildlife Conservation Society announced today that its efforts to protect a wildlife-rich coastal region in South America have paid off in the form of a new coastal marine park recently signed into law by the Government of Argentina. =