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In utero exposure to smoking associated with ADHD problems in genetically susceptible children

Women smokers who become pregnant have long been encouraged to reduce or eliminate their nicotine intake.

24 May 2007

Check and balance for neuron activity provides insight into schizophrenia, seizures

Two genes important for human development and implicated in cancer and schizophrenia also help keep a healthy balance between excitation and inhibition of brain cells, researchers say.

24 May 2007

Tool will revolutionise functional genomic studies in clostridia

The genome of the organism that produces the world's most lethal toxin has been revealed.

24 May 2007

More evidence found indicating potassium channels play a critical role in sleep

A gene that controls the flow of potassium into cells is required to maintain normal sleep in fruit flies, according to researchers at the University of Wisconsin School of Medicine and Public Health (SMPH).

24 May 2007

Diets high in salt may increase stomach ulcers

Scientists from the Uniformed Services University of the Health Sciences (USU) have discovered that diets high in salt may increase the virulence of the pathogen Helicobacter pylori (H. pylori), which is the most common cause of ulcers in the stomach and duodenum.

24 May 2007

High salt intake increases gene activity in the ulcer-causing bacterium Helicobacter pylori

Scientists have identified yet another risk from a high-salt diet. High concentrations of salt in the stomach appear to induce gene activity in the ulcer-causing bacterium Helicobacter pylori, making it more virulent and increasing the likelihood of an infected person developing a severe gastric disease.

24 May 2007

Scientists evolve new proteins from scratch

Nature, through the trial and error of evolution, has discovered a vast diversity of life from what can only presumed to have been a primordial pool of building blocks.

24 May 2007

Targeted nanoparticles offer promising techniques for cancer treatment

Researchers in the laboratory of Mark E. Davis at the California Institute of Technology have been using small interfering RNA (siRNA), sometimes known as silencing RNA, to "silence" specific genes that are implicated in certain malignancies.

22 May 2007

Peering into the body and visualizing its molecular secrets one step closer to reality

Peering into the body and visualizing its molecular secrets, once the stuff of science fiction, is one step closer to reality with a study from researchers at the Stanford University School of Medicine and the University of California, San Diego School of Medicine.

22 May 2007

Researchers use gene therapy to restore sight in mice

University of Florida researchers used gene therapy to restore sight in mice with a form of hereditary blindness, a finding that has bearing on many of the most common blinding diseases.

22 May 2007

Brca2 gene prevents medulloblastoma

Investigators at St. Jude Children's Research Hospital have gained some of the first major insights into how certain genes known to prevent cancer also guide the normal development of the nervous system before birth and during infancy by repairing DNA damage.

22 May 2007

Parkin protein protects neurons from stress induced cell death

Parkinson’s disease, also known as shaking palsy, is one of the most frequent diseases of the nervous system.

22 May 2007

MIT researchers uncover surprising difference in gene regulation in mouse and human liver cells

Scientists often study mice as a model for human biology and disease, because their basic biological processes are assumed to be essentially the same as those of humans.

22 May 2007

Biologist hopes mosquito can break viral chain

Most people do their best to avoid mosquitoes. But this summer Rollie Clem will play the wary host to his own homegrown swarm of Aedes aegypti, the yellow fever mosquito. He's made a room ready for them, and even a menu.

22 May 2007

In some species estrogen plays a key role in aggressiveness

Imagine if a naturally occurring chemical in your body could help make you feel more calm and relaxed ? but it would only work during the long days of summer.

22 May 2007

Decoding gene expression in cancer tumors using noninvasive imaging

By correlating images of cancerous liver tissue with gene expression patterns, a research team led by a radiologist at the University of California, San Diego (UCSD) School of Medicine has developed tools that may some day allow physicians to view a CT image of a cancer tumor and discern its genetic activity.

22 May 2007

Genes add up risk of autoimmune disease

Geneticists have identified a link between the number of copies of a specific gene an individual has and their susceptibility to autoimmune diseases like lupus.

22 May 2007

Scientists develop method to track immune system enzyme in live animals

Scientists supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) at the National Institutes of Health have created two mouse strains that will permit researchers to trace, in a live animal, the activity of an enzyme believed to play a crucial role both in the normal immune response as well as autoimmunity and B cell tumor development.

18 May 2007

Lipoic acid appears to slow down the process of aging

Researchers have identified the mechanism of action of lipoic acid, a remarkable compound that in animal experiments appears to slow down the process of aging, improve blood flow, enhance immune function and perform many other functions.

18 May 2007

Children who are hyperactive tend to do worse academically

Although the relationship between such behaviors as overactivity, impulsivity, and inattentiveness in children and poor achievement in math, reading, language, and other areas has been well documented, little is known about the reasons for this link.

18 May 2007