Tag: "exposed" at medical news
War on bacteria could leave drug-resistant strains unchecked
...talian study, a baby during its first year must be exposed
to germs in order to develop antibodies necessary to fight dangerous infections later in life. If the baby's environment is too clean, the production of T-helper 1 cells is not adequately stimulated and the immune system overproduces T-helper 2 cell...
Workers' comp: perfect fit for chiropractic
...er generation of medical doctors who may have been exposed
to chiropractic and alternative health care during their training, though it is still mostly limited to low-back pain, with some for neck pain and chronic headaches," explains Fiona Fletcher, DC, a Minnesota doctor who has been in practice for five y...
Animal model shows pain and tissue injury in newborns alters nerve circuitry and reaction to pain later in life
...ntified in the animals may occur in newborn humans exposed
to pain and inflammation," said Dr. M. A. Ruda, pr... injected into their left hind paw and the paw was exposed
to heat, they were much quicker to withdraw it than normal rats. The changes that occurred because o...
A threatened St. Johns wort plant could be more effective as an anti-depressant, Cornell and USDA researchers find
...ed wild populations and found plants that had been exposed
to stress particularly attacks from insects had increased amounts of hypericin. The level of hypericin determines the potency of St. John's wort sold over-the-counter, and as the plant's hypericin content increases so does its worth. While mu...
Irvine researcher receives national award
...oteins in the body can undergo as they age or when exposed
to common reactants such as acids, oxygen and light. Researchers have used his fundamental insights to design and synthesize drugs. "Proteins in the body are very precise machines," he explained. "Most proteins are rapidly turned over, but others li...
Scientists develop polymers with nitric-oxide releasing particles
...nitric oxide slowly over long periods of time when exposed
to water," Zhang explained. "Our initial studies used nitric oxide release chemistry which contaminated the blood with diamine precursors," Zhang added. To avoid this problem, he has developed and is now testing new silicone rubber and polyurethan...
Passive smoking at work increases rate of sick leave among employees
... Police force showed that the longer officers were exposed
to passive smoking, the more time they took off wo...d; 14 percent of these were women. Non-smoking men exposed
to passive smoking at work for more than a year were twice as likely to take time off and over 30 pe...
Vitamin D shows promise as cancer prevention drug
...often added to milk and produced naturally by skin exposed
to sunlight. But taken in the amounts needed to realize its cancer prevention potential, vitamin D can be too much of a good thing. Prolonged use can lead to osteoporosis or even death. Now, a research team at Johns Hopkins University in Baltimore,...
Aerosol form of cyclosporine hits key cellular target in lung transplant patients, researchers report at international meetin
... of cancer drug resistance -- the more the cell is exposed
to the drug the more active and effective the pump becomes. With transplant patients, the mechanism makes it so that only about one third to one quarter of anti-rejection drugs are absorbed. Clinicians must compensate for this fact by delivering hi...
Irradiation, refrigeration can add to beneficial effects of wine grapes
... The researchers analyzed post-harvest ripe grapes exposed
to two types of ultraviolet light with different wavelengths.The light appears to activate a natural protection system in the grapes that shields the healthy compounds from damage, Tomas-Barberan said. The same effect has previously been found in app...
How to spot drugs that misfire
...enes that made them, the protein-gene "combos" are exposed
en masse to known and experimental drugs. Next, technicians take the proteins that bind to a particular drug and sequence the attached genes. This is a much quicker and simpler way to identify the proteins than sequencing them directly. It also ...
Other highlights in the November 5 issue of JNCI
...Certain Cancers Factory workers who are routinely exposed
to the industrial chemical formaldehyde may have an increased risk of leukemia and lung cancer, according to two large studies that followed U.S. and British factory workers for an extended period of time. Formaldehyde is used extensively in the pr...
Other highlights in the October 15 issue of JNCI
...rs from individuals who are too young to have been exposed
to SV40 contaminated vaccines, there is a concern that SV40 has become a prevalent human pathogen as a result of human-to-human transmission. Joseph J. Carter and Denise A. Galloway, Ph.D., of the Fred Hutchinson Cancer Research Center in Seattle, an...
Mouse provides clues about chronic pain
...es of NR2B mouse brain. When the brain slices were exposed
to a weak electrical stimulation, transmissions between neurons at junctions called synapses were significantly strengthened (potentiated) for a long period of time. "In these experiments, we wanted to learn if strengthened connections in forebrain...
Cotton clothes carry fungal spores into hospitals
...om a damaged or impaired immune system, are easily exposed
to Aspergillus spores. The danger is that they c...se illness in humans and animals. Most people are exposed
to these spores daily, but the immune systems in healthy people routinely attack and destroy the spo...
Free radicals mediate arsenic's harmful effects
...ee radical production within five minutes of being exposed
to an arsenic compound. The compound, sodium arsen...etic damage. Close to a million U.S. residents are exposed
to unsafe levels of arsenic, especially in the Southwest, says Dr. Hei. And the problem is substanti...
Aspirin and other non-specific COX inhibitors may slow atherosclerosis
...lerotic lesions were reduced by 55 percent in mice exposed
to the non-specific COX inhibitor, compared to lesions in the untreated mice. Mice exposed
to the COX-2 inhibitor showed the same progression of atherosclerosis as the control group. "Becaus...
Polymer research could lead to better protective clothing
...ed in socks or shirts, or any other fabric that is exposed
to perspiration, to reduce the likelihood of body ...cream to make polyester films and fibers that were exposed
to the E.coli bacteria. Laboratory tests found the treated films and fibers prevented the growth of...
Stimulating environment protects brain against damage from lead exposure
...ronment than in the animals that were isolated and exposed
to lead. In many cases, the lead-exposed animals i...ent did just as well as those animals that weren't exposed
to lead. "Behaviorally, being in an enriched environment seemed to help protect their brains," says...
Study points to potential role for caffeine in reducing the risk of Parkinsons disease
... depletion of the neurotransmitter dopamine. Mice exposed
to a chemical called MPTP can develop Parkinson's-like symptoms because MPTP causes a decrease in brain dopamine. When the researchers pretreated the mice with caffeine (at levels that would equal about a cup or two of coffee to humans), their brain...
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