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Tag: "smoke" at biology news

Hydrogen and methane provide raw energy for life at 'Lost City'

...ineral-laden fluid that looks like dark, billowing smoke when it hits the icy cold seawater. Carbonate minerals from fluids at Lost City drape nearby cliffs in brilliant white and form vents ranging in shape from tiny toadstools to the 18-story column, named Poseidon, which dwarfs most known black smoker ...

While on trail of dioxin, scientists pinpoint cancer target of green tea

...own how dioxin and other substances like cigarette smoke manipulate a major cancer-causing molecule, the aryl hydrocarbon (AH) receptor, which frequently plays a role in turning on genes that are oftentimes harmful. Two years ago the team discovered that AH activity is inhibited by a chemical found in whi...

Study of energy and health in Africa focuses spotlight on charcoal and forest management

...ue of the journal Science, concludes that by 2030, smoke from wood fires used for cooking will cause about ...ldren in Africa. By 2050, according to the report, smoke from cooking fires will release about 7 billion tons of carbon in the form of greenhouse gases to th...

Brain Scan Study of Smokers Reveals Signature of Craving

...rs found that smokers who report a greater urge to smoke after a period of abstinence also exhibit stronger brain activity after viewing smoking-related images, such as others smoking or a pack of cigarettes. Smokers who noted fewer cravings showed stable brain responses to the same drug cues, despite hou...

Any exposure to tobacco smoke during pregnancy is risky

...lier studies suggests that exposure to second-hand smoke during pregnancy can be just as detrimental to a d...tudies looking at the potential effects of tobacco smoke exposure to babies in the womb, one of which Dr. Grant co-authored. The primary papers largely disco...

Scientists discover the body's marijuana-like compounds are crucial for stress-induced pain relief

...tions. Importantly, it would not require people to smoke marijuana to obtain relief or wrestle with the legal issues surrounding the drug. Others from UGA involved in the study include faculty members Philip Holmes and Jonathon Crystal and students Richard Suplita, Nathan Bolton and Mark Neely. Authors f...

Purdue scientists may have found key to halting spinal cord damage

...ssue that experiences stresses such as exposure to smoke or pesticides. That list of stresses now includes physical damage, and in the case of spinal injury, acrolein's hazard may be the key in causing debilitating paralysis that sets in after the initial trauma. "When a spinal cord ruptures, not only are...

OHSU research shows vitamin C counteracts some negative impacts of smoking on unborn babies

...housands of babies born to mothers who continue to smoke throughout pregnancy despite physician warnings. T...imately 11 percent of pregnant mothers continue to smoke during pregnancy -- this translates to about a half a million American women a year. Reflecting the ...

Sensor web simulation investigates technique to improve prediction of pollution across the globe

...lume is transported to air traffic routes, or when smoke of a wildfire is carried aloft, then dispersed over large metropolitan areas. The sensor web has the potential to improve the response time of our observing systems by reconfiguring their sensors to react to variable or short-lived events and then tr...

Forsyth scientists find three bacteria associated with oral cancer

...o at risk--especially if they chew spit tobacco or smoke and also consume alcohol. Individuals with no known risk factors may also develop oral cancer. "Therefore, all adults should be examined every year," Mager said. Future research The scientists plan future research to reproduce their results and to e...

Fluoride poisoning in China due to clay, not coal

...orn before storing it. Corn, however, absorbs more smoke than other grains, such as rice or wheat. Zheng's team found that only 15 per cent of the fluoride released when the coal and clay mixture is burnt comes from the coal. The fluoride that contaminates the food and air comes mostly from the clay, whi...

Many smokers fail to quit after cancer diagnosis

...ity of life, up to one-half of cancer patients who smoke continue to do so or relapse after trying to quit....sks, up to half of smokers with cancer continue to smoke or relapse. Treatment for this addiction has largely been focused on healthy smokers and is critical...

Building a better mouse model of lung cancer: FHIT counts

...K, a powerful carcinogen commonly found in tobacco smoke that researchers believe plays a major role in hum...o a second carcinogen, DMN, which is also found in smoke but also in beer, fish meal and some preserved meats. They discovered that when the VHL gene was mis...

NJIT study shows nanoparticles could damage plant life

...deposited into air by exhaust systems, chimneys or smoke stacks, said Watts. The particles can also mix with rainwater and snow and gradually work their way into soil. It is difficult to take results from a lab experiment and conclude that is what happens in the real world, said Watts. "But we speculate th...

Researchers show how air pollution can cause heart disease

...bic meter. These tiny particles of dust, soot, and smoke lead to an estimated 60,000 premature deaths every year in the United States. Dr. Chen and his colleagues divided 28 mice, which were genetically prone to developing cardiovascular disease, into two groups eating either normal or high-fat diets. Fo...

Environmental tobacco smoke linked to behavior problems in children and pre-teens

...the best available marker of environmental tobacco smoke exposure. Dr. Yolton found a relationship between...rly understood. Exposure to environmental tobacco smoke is increasingly recognized as a risk factor for child behavior problems." In the United States, abo...

Alcoholism, smoking and genetics among Plains American Indians

...hey have a very different comorbidity. They don't smoke heavily." In statistical terms, although 62 perce...rs who never progress to 'real' smoking, they just smoke in social settings. This may be a throwback to the traditional use of tobacco amongst American Indi...

Cigarette smoke blocks cell repair mechanism, University of Florida study shows

Cigarette smoke can turn normal breast cells cancerous by blocking...s. Past research has been controversial. Tobacco smoke contains dozens of cancer-causing chemicals, but until more recently many studies found only weak co...

Global study shows all tobacco bad for the heart

... The team also found that exposure to second hand smoke increased the risk of heart attack in both former ...with the highest levels of exposure to second hand smoke of 22 hours or more per week may increase their risk of heart attack by around 45%. "Chewing tobac...

Nicotine exposure during development leads to hearing problems

Scientists know that children of women who smoke during pregnancy can develop hearing-related cogni...hearing deficits," Metherate said. "Most women who smoke find it difficult to quit during pregnancy. For them, doctors often prescribe a nicotine patch. Whil...

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