E-cigarettes may not be able to prevent heart attacks
A new research has revealed that nicotine, which is the major addictive substance in cigarette smoke, contributes to smokers’ higher risk of developing atherosclerosis, the primary cause of heart attacks.
Chi-Ming Hai from Brown University said the findings suggested that e-cigarettes, the battery-powered devices that deliver nicotine in steam without the carcinogenic agents of tobacco smoke, may not significantly reduce smokers’ risk for heart disease.
Dr. Hai’s research on human and rat vascular smooth muscle cells provides evidence of a link between nicotine and atherosclerosis. (Read: Could electronic cigarettes save a million lives?)
In Dr. Hai’s experiments, nicotine appeared to drive the formation of a kind of cellular drill called podosome rosettes, which are members of the invadosome family, consisting of invadopodia, podosomes and podosome rosettes.