News tagged with chemical stress
Nerve gas litmus test could sense airborne chemical weapons
(PhysOrg.com) -- Nerve gases are colorless, odorless, tasteless and deadly. While today's soldiers carry masks and other protective gear, they don't have reliable ways of knowing when they need them in time. ...
Mar 13, 2012 |
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Even low doses of insecticides put honeybees at risk
Scientists in France have discovered that honeybees are at a higher risk of dying from infection by Nosema ceranae (N. ceranae) when they are exposed to low doses of insecticides. The results, presented in ...
Sep 01, 2011 |
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Scientists identify protein that improves DNA repair under stress
Cells in the human body are constantly being exposed to stress from environmental chemicals or errors in routine cellular processes. While stress can cause damage, it can also provide the stimulus for undoing the damage. ...
Jun 16, 2011 |
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Regrowing hair: Researchers may have accidentally discovered a solution
It has been long known that stress plays a part not just in the graying of hair but in hair loss as well. Over the years, numerous hair-restoration remedies have emerged, ranging from hucksters' "miracle solvents" ...
Medicine & Health / Medical research
Feb 16, 2011 |
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Support not punishment is the key to tackling substance abuse and addiction among nurses
As many as ten to 20 per cent of nurses and nursing students may have substance abuse and addiction problems, but the key to tackling this difficult issue - and protecting public safety - is support and treatment, not punishment. ...
Jan 26, 2011 |
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Animal studies suggest new paths to treating depression
New animal research has identified factors, such as the stress response and immune system, that may play important roles in depression. Scientists have also found that the regulation of nerve cell signals influences depression ...
Medicine & Health / Medical research
Nov 16, 2010 |
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Harm reduction cigarettes can be more harmful than conventional brands, researchers report
To reduce the toxicity of cigarette smoke, tobacco companies have introduced "harm reduction cigarettes," often marketed as safer than conventional brands.
Oct 20, 2010 |
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Growing drought-tolerant crops inching forward
A collaborative team of scientists led by researchers at The Medical College of Wisconsin, in Milwaukee, has used the tools of structural biology to understand how a synthetic chemical mimics abscisic acid (ABA), a key stress ...
Aug 25, 2010 |
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Exercise's brain benefits
(PhysOrg.com) -- Athletes have long known about the natural "high" exercise can induce. Now, for the first time, medical researchers have demonstrated that exercise can reverse the effects in the brain of psychological trauma ...
Medicine & Health / Psychology & Psychiatry
Jul 14, 2010 |
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Random DNA mix-ups not so random in cancer development
Researchers at the UC San Diego School of Medicine have pinpointed a mechanism that may help explain how chromosomal translocations - the supposedly random shuffling of large chunks of DNA that frequently lead to cancer - ...
Dec 03, 2009 |
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Fetal study highlights impact of stress on male fertility
Exposure to a combination of excess stress hormones and chemicals while in the womb could affect a man's fertility in later life, a study suggests.
Medicine & Health / Medical research
Oct 21, 2009 |
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Hundreds of hospital patients line up for tests after possible infection
Some of the 1,851 patients who had tests administered by a Broward General Medical Center nurse alleged to have knowingly violated infection control protocols will know within two weeks if they have contracted hepatitis or ...
Oct 08, 2009 |
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Disease-causing Escherichia coli: 'I will survive'
Strains of Escherichia coli bacteria that cause food poisoning have been shown to have marked differences in the numbers of genes they carry compared to laboratory strains of E. coli. Some of these genes may enable them t ...
Sep 09, 2009 |
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New method monitors early sign of oxidative stress in cancer
(PhysOrg.com) -- The growth of cancerous tumors is fueled, at least in part, by the buildup of free radicals -- highly reactive oxygen-containing molecules.
Sep 08, 2009 |
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Synthetic chemical offers solution for crops facing drought
Crops and other plants are constantly confronted with adverse environmental conditions, lowering yield and costing farmers billions of dollars annually. Plants use specialized signals, called stress hormones, ...
Apr 30, 2009 |
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