Vitamin C may help 'juice up' metabolism in older adults, offsetting weight gain
...ge tissues and interfere with normal physiological functions by loading up on vitamin C. Although virtually all living things on Earth need oxygen to exist, oxygen can combine with other molecules to form toxic oxygen free radicals, said CU-Boulder Research Associate Christopher Bell of the kinesiology and app...Chip design has potential as artificial retina
...it theories, realized that their chip mimicked the functions of the retina. This could be the basis for the creation of a real artificial eye that works just like a retina, said Dr. Larry Cooper, ONR program manager for the CNN project. The CNN chip is small and fast and has programmable capability. Other pot...Brain center searches for patterns
...Huettel, the scientists' findings reveal how brain functions that evolved to cope with the natural world might not be optimal in today's technological environment. "Patterns in the modern world may be very different than those perhaps twenty thousand years ago," he said. "In a natural environment, almost a...Exploring the brain chemistry of people at risk for alcohol disorders
...a comparable group of non-abusers. The particular functions have to do with regulation of attention, movement control, and emotional reactions to people and events. A key feature of antisocial personality disorder, seen during adulthood, and of conduct disorder, its childhood predecessor, is a lack of normal...Retinal cell implantation shows promise and improvement in advanced Parkinsons disease patients
..., slow movement and balance, the most common motor functions affected by Parkinsons disease. Half of the participants are also showing improvement of dyskinesia, which are involuntary movements that are a result of medications. The epithelial cells used in the trial were taken from a human donor. Hundreds o...Vagus Nerve Stimulation Therapy (TM) more effective in epilepsy patients when used earlier
...g the brains nerve cells, affect many of the bodys functions and can cause more than 30 different types of seizures. The severity of seizures ranges from finger twitching to unrecognizable speech to convulsions and unconsciousness. Available treatments, either drugs or surgery, control seizures in 70 to 80 p......r. As well as hepatocytes, which perform key liver functions such as breaking down toxins and metabolising proteins and carbohydrates, there are at least six other types of cells. Borenstein says there are two possible ways of seeding this complex network of different cell types. You could seed each layer sepa...MMP enzymes play key role in stability and breakdown of atherosclerotic plaques
...nd Attach to Extracellular Matrix Newly discovered functions of MMP enzymes show that they play both beneficial and harmful roles. As blood vessels and arteries develop and repair, MMPs help cells break down and reorganize or "remodel" their matrix the complex molecular scaffold that gives arteries structura...Continued disruption of movement among alcoholics despite abstinence
...bly," he said, "there are some motor and cognitive functions that you see in an alcoholic that, when they stop drinking, do improve with abstinence. But not all abnormalities improve with abstinence. This is the sort of question that we're never going to be able to answer unless we do longitudinal studies,...Impaired sodium excretion after stress contributes to hypertension in blacks
...lved in all nervous system regulation, physiologic functions and fluid volumes, he said. The body doesnt produce sodium but tightly regulates its levels through a number of mechanisms. These include angiotensin 2, a vasoconstrictor that also directs the kidneys to reabsorb salt. Additionally, angiotensin 2 sti...American Medical Women's Association honors Dr. Marianne Legato with 2002 Women in Science Award
...advancement of women in medicine. The association functions at the local, national, and international level to advance women in medicine and improve womens health. The Woman in Science Award was first presented by the American Medical Womens Association in 1993. Previous recipients are: ...Calcium-dependent potassium channels as target to increase drug delivery to brain tumors
... ends of small arteries that feed a tumor. The BTB functions as a tumors defense mechanism, significantly block... at the calcium-dependent potassium channels. Many functions of cells depend on positive- and negative-charged chemicals, or ions, flowing into and out of the ce...UNC studies add new dimension to 'lock-and-key' theory of drug action
...gonist, blocking dopamine-like activity, for other functions controlled by the very same dopamine receptors. T...as both agonists and antagonists in different cell functions regulated by the same receptor. Members of the UNC team believe the key to the different effects re...Protein essential for switching on T-cell response
... the study's co-authors. In T-cells, this protein functions by chemically linking the receptor to both the calcium and Ras downstream signaling pathways. In the current study, the researchers mutated a specific amino acid in the LAT protein in mice. At two weeks of age, the mice with the mutated LAT protei...Do stroke therapies really work?
...ls are not replaced, people can still recover lost functions such as the ability to recall words. The prevailing explanation is that healthy regions on one side of the brain learn to take over the jobs that were done by the corresponding cells that died in the other hemisphere. This idea is supported by studie...Insight into how the body tells time
...exposed to light and dark conditions. The biologic functions of most of these oscillating genes are unknown. One of the most surprising results of the study was the discovery of hundreds of genes whose levels did not fluctuate with time of day, but responded drastically to different lighting conditions or to t......hape beneath the eyes, for instance. The wavelet functions can handle every different feature to any degree of accuracy, said Krantz. It is a geometry designed for each reconstructive surgery problem, allowing the surgeon to model a face by breaking the different parts of the face into units and custom bui...University of Washington developing AI caretakers for Alzheimer's sufferers
...ng for himself, he could still perform many of the functions of life. He could shower, get dressed, and so forth because my mother would monitor him and give a prompt when needed." It's a recollection that has guided Kautz in initiating a research effort at the UW to explore ways in which computer science can...UCSF orthopedic surgeons test artificial back disc
...ae, and a polyethylene ball-bearing core. The core functions on a ball-and-socket principle to fulfill the role of healthy discs -- which permit limited motion and flexibility, while maintaining stability in specific segments of the spine and absorbing and distributing load. The Prodisc implants are suited for...Study pinpoints link between sleep apnea, high blood pressure
...d proteomics that examines how proteins change the functions of cells, tissues and organs. In a yearlong study of laboratory rats, they found that changes in the expression of proteins regulating a potent natural vasodilator in the kidney mirrored changes in blood pressure of the kidney. The process appears to...