Second-hand smoke 'as dangerous as primary smoke' in causing cancerMar 22, 10:23 am
Washington, Mar 22 (ANI): A key protein involved in cell function and regulation is stopped by cancer-causing agent present in gaseous phase of cigarette smoke, a new study led by Indian origin scientist has suggested.Cigarette smoke is well recognized as a cause of lung cancer and is associated with many other forms of cancer in adults. Cigarette smoke has more than 4,000 components, many of which are linked to the development and progression of lung cancer. Evidence has shown secondhand smoke to be as dangerous as primary smoke due to its impact on the cells of the body.In the study, a team of researchers led by A. K. Rajasekaran, PhD, Director of the Nemours Center for Childhood Cancer Research, found a cancer-causing agent called reactive oxygen species (ROS) present in the gaseous phase of cigarette smoke that has the ability to inhibit normal cell function.Exposure to the secondhand smoke produced by as little as two cigarette s was found to almost completely stop the function of a cell's sodium pump within a few hours. In normal cells, the sodium pump plays a critical role transporting potassium into the cell and sodium out of the cell. The competence of the cell's sodium pump, i.e., its inability to regulate sodium, is predictive of cell damage, disease progression and ultimately, survival."This is critical information with regard to secondhand smoke," said Dr. Rajasekaran. "We now know that one need not inhale the particulate matter present in secondhand smoke to suffer the consequence of smoking. Exposure to the gaseous substance alone, which you breathe while standing near a smoker, is sufficient to cause harm." Dr. Lee Goodglick, Associate Professor in the Department of Pathology and Laboratory Medicine, UCLA, and co-senior author of the study, noted. "Few reliable lung cancer biomarkers that could predict survival, treatment options or response to therapy exist today. Even fewer have been recognized where the function of the biomarker is known, yielding important information about the mechanism of action. This study really accomplishes both," Dr Goodglick added.The study has been published online in the American Journal of Physiology - Lung Cell and Molecular Physiology. (ANI)
Longer secondary schooling cuts risk of HIV infection, especially for girls Jun 29, 11:38 am
London, June 29 (ANI): Longer the secondary schooling significantly lowers the risk of HIV infection, especially for girls, claims a new study.Full Story »
Neurology professor from Kerala received prestigious fellowship award from UK Jun 28, 7:24 pm
New Delhi, June 28 (ANI): Dr.Abraham Kuruvilla, the professor of Neurology at Trivendrum's Sree Chitra Tirunal Institute for Medical Sciences and Technology, has been awarded the fellowship award by the Royal College of Physicians of Edinburgh (FRCP Edin).Full Story »
Now, you can smoke in Hawaii only if you are 21 Jun 28, 6:01 pm
Washington DC, June 28 (ANI): Hawaii has become the very first state of US to push the authorised smoking age from 18 to 21 with effect of which purchase and use of digital cigarettes will also be banned for individuals under the age of 21 from January 1, 2016.Full Story »
E-cig risks unclear to smokers Jun 28, 4:55 pm
Washington DC, Jun 28 (ANI): A new study has suggested that consumers are unclear about the risks or benefits of e-cigarettes.Full Story »
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