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| Medicine articles |
Moderate drinking may boost memory, study suggests
In the long run, a drink or two a day may be good for the brain. Researchers found that moderate amounts of alcohol – amounts equivalent to a couple of drinks a day for a human – improved the memories of laboratory rats.
Researchers report initial success in promising approach to prevent tooth decay
Preventing cavities could one day involve the dental equivalent of a military surgical strike. A team of researchers supported by the National Institute of Dental and Craniofacial Research report they have created a new smart anti-microbial treatment that can be chemically programmed in the laboratory to seek out and kill a specific cavity-causing species of bacteria, leaving the good bacteria untouched.
Studies affirm seafood to be a healthy food choice
Americans can decrease their risk for heart disease by substituting seafood for other animal proteins, according to the Institute of Medicine of the National Academies.
Study in birds suggests method of learning affects how the brain adds neurons
Teaching may be the world's most noble profession. But new research from Fernando Nottebohm's Rockefeller University laboratory shows that, in birds, the presence of a teacher may actually limit mental flexibility.
Hip chip uses nanotechnology to monitor healing
It is as small as the tip of a pen, but a microsensor created by University of Alberta engineers may soon make a huge difference in the lives of people recovering from hip replacement surgery.
Antiprotons four times more effective than protons for cell irradiation
A pioneering experiment at CERN1 with potential future application in cancer therapy has produced its first results. Started in 2003, ACE (Antiproton Cell Experiment) is the first investigation of the biological effects of antiprotons.
A potential biological cause for sudden infant death syndrome
New autopsy data provide the strongest evidence yet that sudden infant death syndrome (SIDS) is not a "mystery" disease but has a concrete biological basis. In the November 1 issue of JAMA, researchers at Children's Hospital Boston document abnormalities in the brainstem -- a part of the brain that regulates breathing, blood pressure, body heat, and arousal -- in babies who died from SIDS.
Evidence that subliminal is not so 'sub'
The popular notion of subliminal information is that it streams into an unguarded mind, unchecked and unprocessed. However, neurobiologists' experiments are now revealing that the brain does consciously process subliminal information and that such processing influences how that subliminal information is perceived.
How the brain weaves a memory
Memories of events comprise many components--including sights, sounds, smells, and tastes. Somehow the many features of an episodic memory are woven together into a coherent whole, and researchers have had little understanding of how this binding takes place as the memories are processed by the brain's memory center, the hippocampus. A central question has been whether the hippocampus receives an "episodic packet," or a collection of perceptual strands that it must integrate into a memory.
Why our shifty eyes don't drive us crazy
Our eyes are constantly making saccades, or little jumps. Yet the world appears to us as a smooth whole. Somehow, the brain's visual system "knows" where the eyes are about to move and is able to adjust for that movement. In a paper published online in Nature, researchers at the University of Pittsburgh and the National Eye Institute (NEI) for the first time provide a circuit-level explanation as to why.
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Antioxidants: new kid on the block for pain relief?
Antioxidant-based pain killers may one day become a viable alternative to addictive medications such as morphine.
Seat of emotions in brain may also contribute to higher cognition
The amygdala is a central processing station in the brain for emotions, but Yale researchers report that the amygdala also plays a role in working memory, a higher cognitive function critical for reasoning and problem solving.
Lousebuster instrument shown to kill head lice
Biologists have invented a chemical-free, hairdryer-like device--the LouseBuster--and conducted a study showing it eradicates head lice infestations on children by exterminating the eggs, or "nits," and killing enough lice to prevent them from reproducing.
Two nerve cells in direct contact
For the first time, scientists at the Max Planck Institute for Neurobiology in Martinsried near Munich have been able to show how two nerve cells communicate with each other from different hemispheres in the visual centre. This astoundingly simple circuit diagram could at a later date provide a model for algorithms to be deployed in technical systems.
Neuron cell stickness may hold key to evolution of the human brain
The stickiness of human neurons may have been a key factor in why the human brain evolved beyond the brains of our primate relatives. In a study comparing the genomes of humans, chimpanzees, mice and other vertebrates, researchers at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and Joint Genome Institute (JGI) found a strikingly high degree of genetic differences in DNA sequences that appear to regulate genes involved in nerve cell adhesion molecules.
Scientists develop new treatments for alzheimer's disease
Scientists at the University of Liverpool have created a new chemical compound that could be developed into a drug treatment for Alzheimer's disease.
How much sun do mancunians need?
Researchers at The University of Manchester are investigating the potential impact of the region's cloudy skies on its residents' physical health.
Stress hormones may play new role in speeding up cancer growth
New research suggests that hormones produced during periods of stress may increase the growth rate of a particularly nasty kind of cancer.
Young children don't believe everything they hear
Childhood is a time when young minds receive a vast amount of new information. Until now, it's been thought that children believe most of what they hear. New research sheds light on children's abilities to distinguish between fantasy and reality.
Genetic study of neanderthal DNA reveals early split between humans and neanderthals
In the most thorough study to date of the Neanderthal genome, scientists suggest an early human-Neanderthal split. The two species have a common ancestry, say the authors, but do not share much else after evolving their separate ways. The study, published in Science, also finds no evidence of genetic admixture between Neanderthals and humans.
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| Quotes | By convention!
cussed Tom airily.
Cmon Scully... Itll be a nice trip through the woods-Fox Mulder
But what ... is it good for?
Engineer at IBM, 1968, commenting on the microchip.
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