http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Two common forms of cancer have been genetically mapped for the first time, British scientists announced, in a major breakthrough in understanding the diseases. http://www.physorg.com/news180267050.html Medicine & Health Thu, 17 Dec 2009 10:50:04 EST news180267050 The scientists observed that the impact of tobacco smoke was especially detrimental during gestation. The results of the study have been published in the current online issue of the renowned journal Environmental Health Perspectives. http://www.physorg.com/news179582187.html Medicine & Health Wed, 09 Dec 2009 12:20:04 EST news179582187 Rats passively exposed to tobacco smoke become dependent on nicotine, according to a new study by Dr. Adrie Bruijnzeel and colleagues from the University of Florida in the US. Their findings of how rats' brains respond to exposure to tobacco smoke have implications for the study of the effects of tobacco smoke on the human brain even from passive exposure to other smokers, and for future studies testing new treatments for tobacco addiction. Their work has just been published online in Springer's journal Psychopharmacology. http://www.physorg.com/news179510992.html Medicine & Health Tue, 08 Dec 2009 16:10:54 EST news179510992 A study conducted at the University of Maryland School of Medicine in Baltimore provides the first direct evidence that cigarette smoke exposure prior to a heart transplant in either the donor, recipient, or both, accelerates the death of a transplanted heart. The study, published this month in the journal Circulation, showed that tobacco smoke leads to accelerated immune system rejection of the transplanted heart, heightened vascular inflammation and increased oxidative stress, and a reduction in the transplanted organ's chance of survival by 33-57 percent. http://www.physorg.com/news178310182.html Medicine & Health Tue, 24 Nov 2009 18:38:10 EST news178310182 (PhysOrg.com) -- Glaxo-SmithKline has joined forces with Nabi Pharmaceuticals to produce a vaccine to help smokers give up their addiction permanently. http://www.physorg.com/news177922617.html Medicine & Health Fri, 20 Nov 2009 09:30:02 EST news177922617 Cigarettes are "widely contaminated" with bacteria, including some known to cause disease in people, concludes a new international study conducted by a University of Maryland environmental health researcher and microbial ecologists at the Ecole Centrale de Lyon in France. http://www.physorg.com/news177852930.html Medicine & Health Thu, 19 Nov 2009 11:50:01 EST news177852930 Researchers said Thursday they uncovered evidence that a Canadian tobacco company destroyed scientific data it had decades ago showing that cigarettes were addictive and caused cancer. http://www.physorg.com/news174894267.html Medicine & Health Fri, 16 Oct 2009 07:40:01 EST news174894267 Smoking bans are effective at reducing the risk of heart attacks and heart disease associated with exposure to secondhand smoke, says a new report from the Institute of Medicine. The report also confirms there is sufficient evidence that breathing secondhand smoke boosts nonsmokers' risk for heart problems, adding that indirect evidence indicating that even relatively brief exposures could lead to a heart attack is compelling. http://www.physorg.com/news174838988.html Medicine & Health Thu, 15 Oct 2009 15:50:03 EST news174838988 A team of scientists at the University of California, Riverside has found that even second-hand tobacco smoke exposure can result in nonalcoholic fatty liver disease (NAFLD), a common disease and rising cause of chronic liver injury in which fat accumulates in the liver of people who drink little or no alcohol. http://www.physorg.com/news171808160.html Medicine & Health Thu, 10 Sep 2009 13:50:23 EST news171808160 It is well known that survivors of breast cancer have a much higher risk of developing a second breast cancer than women in the general population have of developing a first breast cancer. However, little is known about what lifestyle factors may make survivors more vulnerable to a second cancer. http://www.physorg.com/news171646718.html Medicine & Health Tue, 08 Sep 2009 16:50:02 EST news171646718 Tobacco use is prohibited in hospitals in many European countries, although levels of compliance with this regulation differ. A study carried out by researchers from the Catalan Institute of Oncology (ICO) has shown for the first time that exposure to environmental tobacco smoke in European hospitals is "low", and "without any notable differences" between them. http://www.physorg.com/news171305461.html Medicine & Health Fri, 04 Sep 2009 17:51:31 EST news171305461 A new study by researchers at the Keck School of Medicine of the University of Southern California (USC) has found that the life-long effects of maternal smoking during pregnancy may occur through specific changes in DNA patterns. http://www.physorg.com/news170351632.html Medicine & Health Mon, 24 Aug 2009 17:10:02 EST news170351632 In a finding that challenges the increasingly popular belief that smoking marijuana is less harmful to health than smoking tobacco, researchers in Canada are reporting that smoking marijuana, like smoking tobacco, has toxic effects on cells. Their study is scheduled for the Aug. 17 issue of ACS' Chemical Research in Toxicology. http://www.physorg.com/news168690870.html Chemistry Wed, 05 Aug 2009 14:10:02 EST news168690870 (AP) -- One plaintiff is a cancer patient. Another is represented by his widow. The third, has emphysema and rolls into the courtroom on a wheelchair with tubes trailing out of his nose. The three Japanese are waging a minnow-vs.-whale battle against Big Tobacco in one of the world's most smoker-friendly countries. But precedent suggests they're likely to lose, and they hope their suit will at least draw attention to the dangers of smoking. http://www.physorg.com/news168412191.html Medicine & Health Sun, 02 Aug 2009 06:10:12 EST news168412191 (AP) -- Marijuana smoke has joined tobacco smoke and hundreds of other chemicals on a list of substances California regulators say cause cancer. http://www.physorg.com/news164687602.html Medicine & Health Sat, 20 Jun 2009 03:33:49 EST news164687602 A new study published by University of Leicester researchers has found "convincing evidence" that cannabis smoke damages DNA in ways that could potentially increase the risk of cancer development in humans. http://www.physorg.com/news164348909.html Medicine & Health Tue, 16 Jun 2009 05:45:28 EST news164348909 Chronic exposure to tobacco smoke in childhood may contribute to early emphysema later in life, according to new research. Environmental tobacco smoke (ETS) is known to be associated with a variety of serious health problems, but it had not previously been associated with the development of emphysema over the life course. The data will be presented on Tuesday, May 19, at the 105th International Conference of the American Thoracic Society in San Diego. http://www.physorg.com/news161954540.html Medicine & Health Tue, 19 May 2009 12:22:57 EST news161954540 Children exposed to cigarette smoke have lower levels of antioxidants, which help the body defend itself against many biological stresses. http://www.physorg.com/news160668987.html Medicine & Health Mon, 04 May 2009 15:16:51 EST news160668987 Children and teenagers are frequently exposed to potentially damaging noise levels in schools, at home, and in sports, but there has been little reported on their risk for noise-induced hearing loss. In fact, three million children under the age of 18 have some hearing loss, and one factor is external noises. http://www.physorg.com/news160311444.html Medicine & Health Thu, 30 Apr 2009 12:00:45 EST news160311444 There is now enough scientific evidence to link both active smoking and second-hand smoke to breast cancer, according to an international panel convened by the Ontario Tobacco Research Unit, an affiliate of the Dalla Lana School of Public Health, University of Toronto, with support from the Public Health Agency of Canada. http://www.physorg.com/news159719608.html Medicine & Health Thu, 23 Apr 2009 15:37:12 EST news159719608 More than half of non-smoking New Yorkers have elevated levels of cotinine in their blood - meaning that they were recently exposed to toxic second-hand smoke in concentrations high enough to leave residues in the body. Cotinine, a by-product of nicotine breakdown, is not harmful itself but signals exposure to environmental tobacco smoke. A Health Department study, published online this week in the journal Nicotine and Tobacco Research, shows that 57% of adult New Yorkers (2.5 million) have elevated cotinine levels, compared to 45% of adults nationwide - a finding that may reflect the city's dense, urban character. Second-hand smoke contains many harmful chemicals. It is known to cause cancer and heart disease in adults, as well as serious health problems for children. http://www.physorg.com/news158409547.html Medicine & Health Wed, 08 Apr 2009 11:39:44 EST news158409547 Researchers at University College London and St George's, University of London measured recent exposure to tobacco smoke in non-smoking middle-aged men taking part in the British Regional Heart Study by measuring the levels of cotinine - a compound carried in the blood - at two time points 20 years apart. http://www.physorg.com/news153569502.html Medicine & Health Wed, 11 Feb 2009 10:12:19 EST news153569502 The association between tobacco smoke and cancer deaths - beyond lung cancer deaths - has been strengthened by a recent study from a UC Davis researcher, suggesting that increased tobacco control efforts could save more lives than previously estimated. http://www.physorg.com/news151770432.html Medicine & Health Wed, 21 Jan 2009 14:30:40 EST news151770432 Boys with asthma who are exposed to environmental tobacco smoke have higher degrees of hyperactivity, aggression, depression and other behavioral problems, according to researchers at Cincinnati Children's Hospital Medical Center. http://www.physorg.com/news147618840.html Medicine & Health Thu, 04 Dec 2008 13:14:00 EST news147618840 An infection that often goes undetected can block the lung's natural protective response against tobacco smoke, according to researchers at National Jewish Health. The findings, recently published online and scheduled to appear in the October issue of Infection and Immunity, suggest one mechanism that may cause smokers to develop chronic obstructive pulmonary disease. http://www.physorg.com/news138373691.html Medicine & Health Tue, 19 Aug 2008 14:08:11 EST news138373691 A previously unrecognized group of air pollutants could have effects remarkably similar to harmful substances found in tobacco smoke, Louisiana scientists are reporting in a study scheduled for presentation today at the 236th National Meeting of the American Chemical Society. Inhaling those pollutants exposes the average person up to 300 times more free radicals daily than from smoking one cigarette, they added. http://www.physorg.com/news138201201.html Chemistry Sun, 17 Aug 2008 14:13:21 EST news138201201