Re-analysis of cigarettes confirms tobacco companies increased addictive nicotine 11 percent
A reanalysis of nicotine yield from major brand name cigarettes sold in Massachusetts from 1997 to 2005 has confirmed that manufacturers have steadily increased the levels of this agent in cigarettes. This independent analysis, based on data submitted to the Massachusetts Department of Public Health (MDPH) by the manufacturers, found that increases in smoke nicotine yield per cigarette averaged 1.6 percent each year, or about 11 percent over a seven-year period (1998-2005). Nicotine is the primary addictive agent in cigarettes.
Risk of stroke expected to decrease with new screening guidelines
For the first time, a set of screening guidelines for the detection of carotid stenosis, the thickening of the blood vessel that supplies blood to the brain and a leading cause of stroke, has been developed by a multidisciplinary committee of internationally recognized neurologists and surgeons. more
New method developed at Weizmann Institute holds promise for treating brain injuries
An injury to the brain can be devastating. When brain cells die, whether from head trauma, stroke or disease, a substance called glutamate floods the surrounding areas, overloading the cells in its path and setting off a chain reaction that damages whole swathes of tissue. Glutamate is always present in the brain, where it carries nerve impulses across the gaps between cells. But when this chemical is released by damaged or dying brain cells, the result is a flood that overexcites nearby cells and kills them. more
CAMH study sheds light on motherhood, marriage and mental illness
Previously married mothers had higher rates of depressive disorders and alcohol abuse compared to married or never-married mothers, according to a new study from the Centre for Addiction and Mental Health (CAMH). The study, which highlights differing rates of psychiatric and substance use disorders between single and married mothers over a 12-month period, fills an important information gap in our understanding of the relationship between family structure and psychiatric outcomes. more
Breakthrough could prevent multiple fibrotic diseases
A scientific breakthrough at Rice University could lead to the first treatment that prevents the build-up of deadly scar tissue in a broad class of diseases that account for an estimated 45 percent of U.S. deaths each year.
Researchers find genetic flaw starts biochemical domino effect
Michael Stern's latest research into the formation of neurofibromatosis tumors reads something like a federal racketeering indictment, except that Stern's tracing proteins instead of laundered money, and he's looking not at offshore accounts but at biochemical paths of cause and effect. more
Simple diagnostic test detects genetic signs of lung cancer in a patient's sputum
DNA coughed up along with phlegm could point to lung cancer, say researchers at the University of Maryland School of Medicine who are developing an inexpensive and non-invasive gene probe to help diagnose early stage lung cancer in current and former smokers. more
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