Printer Friendly
The Free Library
23,403,340 articles and books


Carbon monoxide may limit vascular damage. (Biomedicine).

Carbon monoxide in small doses can prevent injury to blood vessels caused by surgery, a study of rats suggests.

Researchers gave carbon monoxide to rats before performing angioplasty, in which a balloon-tipped catheter is used to widen a clogged area in an artery. The procedure works well for people with partially blocked arteries, but many patients must undergo repeat angioplasty because the subtle injury caused by the balloon can lead to new blockages later.

Carbon monoxide is poisonous, but it's naturally released in low doses by cells of blood vessels in response to surgical procedures.

In the new study, rats that inhaled carbon monoxide-laced air for 1 hour before angioplasty had much less subsequent artery blockage than did rats not receiving the gas, says study coauthor Augustine Choi, a pulmonologist at the University of Pittsburgh.

Rats that underwent a vessel transplant also fared significantly better if given carbon monoxide before and after the surgery, the researchers report in the February Nature Medicine.

The researchers are currently testing the carbon monoxide therapy on pigs, whose responses to these procedures closely approximate those of people. --N.S.
COPYRIGHT 2003 Science Service, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2003, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

 Reader Opinion

Title:

Comment:



 

Article Details
Printer friendly Cite/link Email Feedback
Title Annotation:Augustine Choi, a pulmonologist at the University of Pittsburgh.
Publication:Science News
Article Type:Brief Article
Geographic Code:1USA
Date:Feb 22, 2003
Words:185
Previous Article:Farming sprouted in ancient Ecuador. (Archaeology).
Next Article:Eat More Dirt: Diverting and Instructive Tips for Growing and Tending an Organic Garden.
Topics:



Related Articles
The air you breathe may hurt your ears.
Monoxide heart risk.
A survey of carbon monoxide and nitrogen dioxide in indoor ice arenas in Vermont.
Outdoor carbon monoxide: risk to millions.
Stalking the silent killer: carbon monoxide.
Effects of winter gasoline additives on air quality and health.
Carbon Monoxide a Risk at Camp.
Boats puff up outdoor carbon monoxide risk.
Transmuting a powerful poison.
Rosy but rancid?

Terms of use | Copyright © 2014 Farlex, Inc. | Feedback | For webmasters