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| Medicine articles |
Drug triggers body's mechanism to reverse aging effect on memory process
A drug made to enhance memory appears to trigger a natural mechanism in the brain that fully reverses age-related memory loss, even after the drug itself has left the body, according to researchers at UC Irvine.
Chemical in many air fresherners may reduce lung function
New research shows that a chemical compound found in many air fresheners, toilet bowl cleaners, mothballs and other deodorizing products, may be harmful to the lungs.
Tiny inhaled particles take easy route from nose to brain
When rats breathed in nano-sized materials at a concentration routinely inhaled by factory welders, the tiny particles followed a rapid and efficient pathway from the nasal cavity to several regions of the brain, according to a study in the August issue of Environmental Health Perspectives.
Why are so many people dying on everest?
Why are so many people dying on Mount Everest, asks doctor and climber, Andrew Sutherland in BMJ? It used to be thought that it would be physiologically impossible to climb Mount Everest
Why are so many people dying on Everest?
Why are so many people dying on Mount Everest, asks doctor and climber, Andrew Sutherland in BMJ? It used to be thought that it would be physiologically impossible to climb Mount Everest with or without oxygen.
Why are so many people dying on Everest?
Why are so many people dying on Mount Everest, asks doctor and climber, Andrew Sutherland in BMJ?It used to be thought that it would be physiologically impossible to climb Mount Everest
Viruses can jump between primates and humans
Viruses that jump the species barrier between monkeys and humans can harm both people and animals, and we should take steps to reduce the risk of virus transmission. That's the message running through the September issue of the American Journal of Primatology, a special issue on disease risk analysis edited by a primate expert at the University of Washington.
One-two particle punch poses greater risk for astronauts
It doesn't just matter how much radiation an astronaut is exposed to, time and the order in which charged particles strike human cells are important factors as well. That's the main finding of a study simulating radiation exposure conducted at the U.S. Department of Energy's Brookhaven National Laboratory and published in the September 2006 edition of Radiation Research.
New growth in old eyes
Nerve cells in the retinas of elderly mice show an unexpected and purposeful burst of growth late in life, according to researchers at UC Davis.
Study provides evidence that autism affects functioning of entire brain
A recent study provides evidence that autism affects the functioning of virtually the entire brain, and is not limited to the brain areas involved with social interactions, communication behaviors, and reasoning abilities, as had been previously thought.
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Newly discovered gene may hold clues to evolution of human brain capacity
Scientists have discovered a gene that has undergone accelerated evolutionary change in humans and is active during a critical stage in brain development. Although researchers have yet to determine the precise function of the gene, the evidence suggests that it may play a role in the development of the cerebral cortex and may even help explain the dramatic expansion of this part of the brain during human evolution.
Brain scan of nuns finds no single 'god spot' in the brain
A new study at the Université de Montréal has concluded that there is no single God spot in the brain. In other words, mystical experiences are mediated by several brain regions and systems normally implicated in a variety of functions (self-consciousness, emotion, body representation).
Study provides new insights into brain organisation
Scientists have provided new insights into how the brain is organised - knowledge which could eventually inform diagnosis of and treatments for conditions like Alzheimer's Disease and autism.
Microcapsules open in tumour cells
Medicines are most helpful when they directly affect the diseased organs or cells - for example, tumour cells. Scientists at the Max Planck Institute of Colloids and Interfaces in Potsdam, Germany, and Ludwig-Maximilian-University in Munich, have come one step closer to that goal: they have intentionally released a substance in a tumour cell.
Mit provides first evidence for learning mechanism
Finally confirming a fact that remained unproven for more than 30 years, researchers at MIT's Picower Institute for Learning and Memory report in the Aug. 25 issue of Science that certain key connections among neurons get stronger when we learn.
Mit proton treatment could replace x-ray use in radiation therapy
Scientists at MIT, collaborating with an industrial team, are creating a proton-shooting system that could revolutionize radiation therapy for cancer. The goal is to get the system installed at major hospitals to supplement, or even replace, the conventional radiation therapy now based on x-rays.
Synthetic molecule causes cancer cells to self-destruct
Scientists have found a way to trick cancer cells into committing suicide. The novel technique potentially offers an effective method of providing personalized anti-cancer therapy.
Obesity in men linked to infertility
Men with increased body mass index (BMI) were significantly more likely to be infertile than normal-weight men, according to research conducted at the National Institute of Environmental Health Sciences (NIEHS), one of the National Institutes of Health.Darfur is headed for a disaster unless the Sudanese Government changes its mind and allows a force of United Nations peacekeepers to take over from the existing African Union (AU) operation in the strife-torn region, Secretary-General Kofi Annan said today
Everything in its place
Socks in the sock drawer, shirts in the shirt drawer, the time-honored lessons of helping organize one's clothes learned in youth. But what parts of the brain are used to encode such categories as socks, shirts, or any other item, and how does such learning take place?Darfur is headed for a disaster unless the Sudanese Government changes its mind and allows a force of United Nations peacekeepers to take over from the existing African Union (AU) operation in the strife-torn region, Secretary-General Kofi Annan said today
New sunscreen ingredient to heal sunburn and help prevent skin cancer
People who suffer from sunburn could soon benefit from a new sunscreen ingredient that actively repairs sunburnt skin and helps prevent the onset of skin cancer, according to research published in the Journal of Investigative Dermatology.
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| Quotes | Ive always wanted to be a scientist. That way, I could get a bunch of grants and do research into whether money can really buy happiness.
Kyannke.
Ive always wanted to be somebody, but I see now I should have been more specific.
Lily Tomlin |
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