U of M researcher says Viagra may cause permanent vision loss in some men
... space in the back of the eye. "Viagra regulates a chemical in the body to constrict the arteries. This constriction may cut off the blood flow to the optic nerve, especially in people with a low cup to disk ratio, where the blood vessels and nerves are tightly bundled provoking NAION," says Pomeranz. The on...Protecting children from industrial chemicals in the environment
...ervous system, when it is exposed to an industrial chemical during pregnancy or while breast feeding. Unfortu...agreement with the American Chemistry Council, the chemical manufacturer's trade association, to provide basic toxicity screening tests for the high-production ...Novel therapy tested in mice could chase away cat allergies
...ble treatment puts a brake on the release of a key chemical from cells involved in cat allergy reactions. That chemical, histamine, brings on allergy symptoms such as sneezing, wheezing, itching, watery eyes and sometimes asthma. When a cat-allergic person touches or inhales a protein found in cat saliva or d...Some brain cells 'change channels' to fine-tune the message
...ling nerve cells die because too much of the brain chemical glutamate binds to the cells' AMPA receptors, and so too much calcium gets inside. If these threatened nerve cells can swap their calcium-allowing channels for the kind that keeps calcium out, it might be possible to harness that switch to prevent th...Hopkins begins human trials with donor adult stem cells to repair muscle damaged from heart attack
...e damaged areas of the heart muscle, responding to chemical signals released by the heart after an infarct that triggers a repair response from the bone marrow. Related clinical research under way in China also uses adult stem cells, but they come directly from the patient, and no universal donor is used as...Study finds factors linked to substance use disorder relapse among health care professionals
...n the March 23/30 issue of JAMA. The prevalence of chemical dependency (excluding nicotine) among physicians has been estimated to be 10 percent to 15 percent, similar to that in the general population, according to background information in the article. Following completion of primary treatment, recovery is ...... fumes, the research team assessed the amount of a chemical called 1-OHPG in the urine of 47 female motorway toll-booth operators and 27 female office workers. The 20 toll booths were located on a motorway 10 km south of Taipei, Taiwan, and have the highest traffic density of any toll station in the country. ...Chemical decoy shows promise for slowing Alzheimer's by acting as decoy
SAN DIEGO, March 17 A chemical decoy that shows promise in blocking the toxic bra...inary membership of more than 159,000 chemists and chemical engineers. It publishes numerous scientific journals and databases, convenes major research conferen...Genes for alcohol consumption identified
.... The research focused on a key gene that controls chemical signalling in the brain. Different versions of this gene may affect the balance and effect of signalling molecules and in turn help to shape individual drinking habits. Scientists do not know precisely why particular genetic variants may influence be...Mechanism of RNA recoding: New twists in brain protein production
...e gets edited after cells copy DNA to RNA--a close chemical relative--during transcription. Think of DNA as an... (A) to inosine (I). Proteins responsible for fast chemical and electrical signaling in animal nervous systems are the main targets of this process. In a prior ...9.2 million cosmetic plastic surgery procedures in 2004 - up 5%
...vasive cosmetic procedures were Botox (3 million), chemical peel (1.1 million), microdermabrasion (859,000), laser hair removal (574,000), and sclerotherapy (545,000). The growth in minimally-invasive procedures can be attributed, in part, to new injectable wrinkle fighters entering the market. More consumer...Half-million cosmetic plastic surgery procedures for Hispanics in 2004 - up 49% from 2000
...microdermabrasion, injectable wrinkle fillers, and chemical peel. In addition, the most commonly requested s...nic groups were Botox, injectable wrinkle fillers, chemical peel, and microdermabrasion. Both African Americans and Asians had a 24 percent increase in cosmeti...'Chemistry and Flavor of Hispanic Foods' one-day symposium, March 15
...re have recently conducted the first comprehensive chemical analysis of Hispanic-style cheeses, a development ...avors & Fragrances, Inc. in New Jersey conducted a chemical analysis of the flavor components in a classic Margarita cocktail (containing tequila, orange liqueu...Compound may help prevent diabetes in fast-food fans
...inary membership of more than 159,000 chemists and chemical engineers. It publishes numerous scientific journals and databases, convenes major research conferences and provides educational, science policy and career programs in chemistry. Its main offices are in Washington, D.C., and Columbus, Ohio. Mark T. ...Chemists identify immune system mechanism for methamphetamine binges
...nal. In a test tube study designed to simulate the chemical reactions that occur with the drug when it enters ...inary membership of more than 159,000 chemists and chemical engineers. It publishes numerous scientific journals and databases, convenes major research conferen...New ways to design safer & more effective topical (transdermal) drug delivery announced in the PNAS
...esearchers led by Samir Mitragotri, a professor of chemical engineering at the University of California, Santa... drug delivery systems. Certain molecules, called chemical penetration enhancers (CPEs) help drugs absorb through the skin. After analyzing more than 100 diffe...New hand-held information system for emergency responders
... a hazardous material (Hazmat) incident, such as a chemical spill. WISER (Wireless Information System for Emer...ties and symptoms, WISER looks in its database for chemical substances that have these characteristics. The list of candidate chemicals decreases as additional ...Newly discovered pathway might help in design of cancer drugs
...ate a synthetic, double-stranded DNA with special chemical characteristics and exposed it to long wavelength ...rchers to study it and learn about that particular chemical pathway in detail. "Exposing DNA to radiation is like hitting a fine piece of crystal stemware with ...CAS science spotlight identifies most requested article
...ls or nanotubes permit the storage and movement of chemical substances and have wide applicability in such diverse fields as catalysis, pharmacology, gene therapy, and materials science. The authors, editors and publisher associated with the most requested article were recognized during the CAS Science Spotli......ents at Northern Arizona University, looked at the chemical composition of a variety of tattoo inks to better ...cal techniques that can test for a wide variety of chemical components, rather than looking for a specific group of compounds. "At this point in the study, we h...