Cancer News
OncoLink Cancer News - HealthDay


Short-Term Smoke Exposure Impairs Endothelial Function

Friday, May 18, 2012 (Last Updated: 05/21/2012)

FRIDAY, May 18 (HealthDay News) -- Short-term exposure to low levels of secondhand smoke (SHS) results in a concentration-dependent decrease in endothelial function, according to a study published in the May 22 issue of the Journal of the American College of Cardiology.

Paul F. Frey, M.D., M.P.H., from San Francisco General Hospital, and colleagues investigated the effect of short duration of SHS exposure on endothelial function. They exposed 33 healthy nonsmokers to conditioned filtered air or to one of two low levels of aged SHS for 30 minutes.

The researchers found that for each 100 µg/m³ increase in respirable suspended particles in SHS exposure there was a 0.67 percent reduction in the absolute maximal percent brachial artery flow-mediated dilation. There was no evidence of a threshold for the impact of SHS on flow-mediated dilation.

"Short-term exposure to low levels of SHS for 30 min results in a concentration-dependent decrease in endothelial function, a key mechanism for all stages of atherosclerosis, making policies to limit SHS exposure at low concentrations important," the authors write.

One author disclosed financial ties to pharmaceutical companies developing or marketing smoking cessation medications and has been a paid expert witness in litigation against tobacco companies.

Abstract
Full Text (subscription or payment may be required)

Specialties Hematology & Oncology
Family Practice
Internal Medicine
Geriatrics
Nursing
OBGYN & Women's Health

Copyright © 2012 HealthDay. All rights reserved.


I Wish You Knew

Benefits of yoga during cancer treatment

View More



Blogs and Web Chats

OncoLink Blogs give our readers a chance to react to and comment on key cancer news topics and provides a forum for OncoLink Experts and readers to share opinions and learn from each other.




OncoLink OncoPilot

Facing a new cancer diagnosis or changing the course of your current treatment? Let our cancer nurses help you through!

Learn More