Tag: "smoke" at biology news
The area where carcinogens settle may be a key factor in developing lung cancer
...rticles the size of those emanating from cigarette smoke
and toxic aerosols interact with our pulmonary sur...particles with absorbed carcinogens from cigarette smoke
at the airway's carinas -- the ridge separating the openings of the right and left main bronchi at ...
Cigarette smoke linked to low folate levels
Exposure to cigarette smoke
may rob people of folate, an important vitamin tha...ers and those exposed to high levels of secondhand smoke
had lower levels of folate in their blood than nonsmokers, according to the report in the journal Ni...
ORNL wins four R&D 100 awards, pushing total to 116
...imaging. It also can help firefighters see through smoke
and has particularly important uses in the commercial and military sectors, because infrared radiation is the second-most intense source of radiation in our environment....
Two genes may interact to increase risk of lung cancer in smokers
...hway, exposure to carcinogens present in cigarette smoke
and resultant lung cancer risk. Cancer is caused when damage in cells results in unregulated cellular growth. When DNA repair genes (whose job is to ensure that genetic information is accurately copied when cells divide) are damaged or mutated, they ...
OHSU researcher publishes first measurements of 'free-base' nicotine in cigarette smoke
...continued, "free-base nicotine levels in cigarette smoke
thus are at the heart of the controversy regarding...tine levels. In the new study, Pankow analyzed the smoke
of popular cigarette brands under controlled conditions to measure what percentage of the nicotine i...
Hydrothermal vent systems could have persisted millions of years, incubated life
...smokers get their name because it can appear as if smoke
is billowing from the vents. What's actually being seen are dark minerals precipitating when scalding hot vent waters meet the icy-cold ocean depths. Water venting at Lost City, in comparison, is hot enough to shimmer but not "smoke." Because of the ...
Fears of second-hand smoke confirmed
July 29, 2003 -- Bethesda, MD -- Cigarette smoke
is the major cause of pulmonary emphysema. This di...he amount of cigarette smoking. But why cigarette smoke
leads to this disease is still open to speculation. Now, a team of researchers from Italy has found...
Envisat focuses on carbon-rich peat swamp forest fires
...d Synthetic Aperture Radar (ASAR) could pierce the smoke
clouds to provide high-resolution fire impact asse... large scale fire scar mapping as well as identify smoke
plumes whose sources could then be spotted by the Advanced Along Track Scanning Radiometer (AATSR), ...
New blood test uncovers individual risk for lung cancer
...ut 20,000 times a day by factors such as sunlight, smoke
and reactions within the body. If left unrepaired, damages to the DNA can lead to cancer. Fortunately the body has a stock of enzymes whose function is to repair DNA. These enzymes scan the DNA and detect damage using sophisticated sensor systems. Up...
Trade Center debris pile was a chemical factory, says new study
... still the most extensive analysis of the dust and smoke
from the hot collapse piles after the trade center collapse. In the 2002 report, DELTA researchers described their analysis of over 8,000 air samples collected Oct. 2-30, 2001, on a rooftop at 201 Varick St., one mile north-northeast of the trade ce...
New technology helps fire managers anticipate smoke problems
...all need accurate and timely information regarding smoke
and visibility when fires burn. BlueSkyRAINS is a ...about 100 wildfires in the Western States. "When smoke
is generated from a wildland fire, BlueSkyRAINS helps people to determine where the smoke
will go an...
UGA scientist to study effect of air quality on unborn babies
...s with little ventilation. "The indoor environment smoke
exposure generated from these stoves is orders of magnitude higher than levels typically seen in U.S. homes," he said. Naeher hopes the study will lead to simple economical and cultural changes that can reduce air pollution and protect the population...
Real-time 'movies' will predict wildfire behavior for one hour
...ngful to the fire fighters."Coen's model can track smoke
and hot gases in the atmosphere," he says. "We need to translate that into what a fire looks like by using computer animation. It fits very well into what we've been doing in the FIRES project." Vodacek's team will create synthetic scenes of fires t...
NIEHS-funded researchers find low-level ozone increases respiratory risk of asthmatic children
...ine particulate matter, which includes dust, dirt, smoke
and soot from a variety of natural and man-made sources, can significantly aggravate asthma symptoms. Repeated exposures to ozone and fine particles at or above the federal standards can irritate or damage sensitive tissue in the airways and lungs...
NIH funds 'Breast Cancer and the Environmental Research Center' at Fox Chase Cancer Center
...covery that most lung cancer was caused by tobacco smoke
gave us a way to prevent that cancer. Similarly, the banning of certain industrial chemicals has helped prevent bladder and other cancers. If we can also find environmental causes for breast cancer, we will be on our way to preventing many of these...
Physician experts available to speak on California fires and smoke inhalation
... discuss the short and long-term health effects of smoke
inhalation on residents and firefighters, and what people should do to protect themselves. WHO : The following respiratory experts are available for interview: New York, NY David J. Prezant, MD, FCCP Deputy Chief, Medical Offices, New York Fire De...
Nicotine exposure in aging hearts
Bethesda, MD Large numbers of Americans still smoke
cigarettes or use over-the-counter nicotine products such as patches and gums to satisfy their craving for nicotine. However, serious and sometime fatal cases of atrial fibrillation (AF) have been reported in patients who use a nicotine product. This...
Scientists announce long-sought mouse model of human pancreatic cancer
...e for various reasons: carcinogens such as tobacco smoke
(smoking is a risk factor for pancreatic cancer), possibly dietary components and advancing age (mistakes in the DNA code of genes pile up and the body's DNA repair mechanisms fail to keep pace). Several particular mutations have been identified in t...
Ancient DNA mutations permitted humans to adapt to colder climates, UCI researchers find
...ygen radicals, the mitochondrial equivalent to the smoke
generated by coal-burning power plants. Oxygen radicals damage the mitochondria, mtDNA and the surrounding cell. Eventually oxygen radicals can cause the cell to die when sufficient oxidative damage accumulates in the mitochondria and the cell. ...
Research news from Tufts University, Friedman School of Nutrition Science and Policy: February 2004
...le is to stop smoking but those who do continue to smoke
put themselves at high risk if using high doses of beta-carotene." Beta-carotene is still promising as an anti-cancer nutrient, but the protective dose seems to be best obtained from dietary sources such as fruits and vegetables at natural levels. "...
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