Switching from smoking to being
vaping might not help heart health.
Researchers conduct tests
in the vascular system more than 400 healthy adults aged 21 to 45 years. Study participants who used cigarettes, or electronic cigarettes
both have stiffer arteries compared
who don’t smoke or vape, the researchers report online April 29 on the internet Journal of the American Heart Association.
Rigidity can damage
small blood vessels and heart filters, both of which can contribute to
the development of cardiovascular disease, said Jessica Fetterman, a vascular
biologist at Boston University School of Medicine.
Fetterman and colleagues
also collected samples of cell participants lining the blood vessels, and
expose the cells to fluorescent dyes that detect nitric oxide, a molecule
which dilates blood vessels and helps stop blood clots. Cell taken from
smokers and vapers produce less nitric oxide than cells from participants who are
no smoking or vape, a sign that smokers and vapers may not
Cardiovascular disease is a leading cause of death for smokers, and some have suggested that switching to e-cigarettes might prove less harmful to health. Many adults who vape are former smokers, and that applies to e-cigarette users in this study.
Research participants who did vaped have been doing it for at least three months. Previous studies have shown that healthy smokers who stop smoking can see a reduction in their arterial stiffness in just four weeks. “Our work shows that abnormalities in blood vessel stiffness persist in e-cigarette users,” Fetterman said. “There is no evidence that the use of e-cigarettes reduces cardiovascular injuries” associated with smoking.
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