Brett Wong is on a mission to help uncover the mechanism that regulates our ability to withstand heat stress. The goal is to help improve survival rates among those who suffer the most during heat waves: the elderly and people with conditions such as diabetes and heart disease.
The award-winning University of Oregon doctoral degree students research is the first to identify histamine receptors as contributing to increased blood flow during heat stress. Skin blood flow is a key factor in compensating for exposure to prolonged heat waves. "These are the same receptors that are involved in seasonal allergies for which people take antihistamines," says Wong, who is the lead author on an article describing his findings in the November issue of the Journal of Physiology. Co-authors are Brad W. Wilkins, research associate, and Christopher Minson, assistant professor of human physiology and co-director of the UO Exercise and Environmental Physiology Laboratories.
Theirs is the first study designed to examine a potential role for histamine receptors in skin blood flow in humans. They tested the H1 and H2 histamine receptors and found that only the H1 receptor was involved in skin blood flow changes. The National Institutes of Health (Heart, Lung and Blood Institute) funded the study. "Many deaths in the Midwest have been associated with an inability to increase skin blood flow and regulate body temperature," Wong says. "If we can understand the basic science behind increasing skin blood flow in healthy young individuals, well be able to help at-risk populations."
Melody Ward Leslie | EurekAlert!
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High-precision measurement of the g-factor eleven times more precise than before / Results indicate a strong similarity between protons and antiprotons
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Heat from the friction of rocks caused by tidal forces could be the “engine” for the hydrothermal activity on Saturn's moon Enceladus. This presupposes that...
The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.
Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....
The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...
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