Featured Research

from universities, journals, and other organizations

Electronic cigarettes may cause, worsen respiratory diseases, among youth

Date:
April 29, 2014
Source:
RTI International
Summary:
Electronic cigarette “vapors” are made of small particles containing chemicals that may cause or worsen acute respiratory diseases, including asthma and bronchitis, among youth, according to a new study. Researchers examined particles emitted by e-cigarettes, an alternative nicotine delivery device, to understand what a user inhales and how these particles may affect the teen user’s lungs. In a cellular model, the study found some e-cigarette emissions cause acute toxicity, or lung damage, similar to that caused by conventional tobacco smoke.

Electronic cigarette "vapors" are made of small particles containing chemicals that may cause or worsen acute respiratory diseases, including asthma and bronchitis, among youth, according to a new study by RTI International.

Related Articles


Researchers examined particles emitted by e-cigarettes, an alternative nicotine delivery device, to understand what a user inhales and how these particles may affect the teen user's lungs. In a cellular model, the study found some e-cigarette emissions cause acute toxicity, or lung damage, similar to that caused by conventional tobacco smoke.

"The emerging trend of e-cigarette use is posing public health concerns and new issues for regulatory agencies," said Jonathan Thornburg, Ph.D., senior research engineer and program manager at RTI and the project's manager. "E-cigarettes produce a significant number of very small particles that impact a teen user's airway viability. To understand what the user inhales, we collected data to characterize the small particles in the vapor and to determine the chemical and toxicological characteristics of e-cigarette emissions."

The study found up to 40 percent of particles emitted by an e-cigarette can deposit in the deepest area of a youth's lungs. The chemicals contained in these small particles may irritate airways or worsen pre-existing respiratory conditions

To conduct the study, researchers developed an e-cigarette vapor collection and sampling system equipped with a custom apparatus to mimic the conditions found inside the human mouth and respiratory tract. The system is attached to an e-cigarette to uniformly generate and capture the vapor emissions. The system is flexible to be representative of realistic smoking patterns among adolescents and adults.

According to the researchers, the type and quality of e-cigarette liquids will affect the size, content and concentration of generated particles. The size and toxicity of particles are also impacted by different fragrances, preservatives and other additives.

The study did not examine secondhand vapor exposure by e-cigarettes.

"Our soon-to-be published data indicate that we need to do more research to understand how different liquids and device features alter particles and thus impact respiratory health," Thornburg said. "What we learned from this first study will allow the design of scientifically defensible and comparable studies to further the understanding of the effects of e-cigarettes on a user's health."


Story Source:

The above story is based on materials provided by RTI International. Note: Materials may be edited for content and length.


Cite This Page:

RTI International. "Electronic cigarettes may cause, worsen respiratory diseases, among youth." ScienceDaily. ScienceDaily, 29 April 2014. <www.sciencedaily.com/releases/2014/04/140429104955.htm>.
RTI International. (2014, April 29). Electronic cigarettes may cause, worsen respiratory diseases, among youth. ScienceDaily. Retrieved December 19, 2014 from www.sciencedaily.com/releases/2014/04/140429104955.htm
RTI International. "Electronic cigarettes may cause, worsen respiratory diseases, among youth." ScienceDaily. www.sciencedaily.com/releases/2014/04/140429104955.htm (accessed December 19, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Friday, December 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Kids Die While Under Protective Services

Kids Die While Under Protective Services

AP (Dec. 18, 2014) As part of a six-month investigation of child maltreatment deaths, the AP found that hundreds of deaths from horrific abuse and neglect could have been prevented. AP's Haven Daley reports. (Dec. 18) Video provided by AP
Powered by NewsLook.com
Dads-To-Be Also Experience Hormone Changes During Pregnancy

Dads-To-Be Also Experience Hormone Changes During Pregnancy

Newsy (Dec. 18, 2014) A study from University of Michigan researchers found that expectant fathers see a decrease in testosterone as the baby's birth draws near. Video provided by Newsy
Powered by NewsLook.com
Prenatal Exposure To Pollution Might Increase Autism Risk

Prenatal Exposure To Pollution Might Increase Autism Risk

Newsy (Dec. 18, 2014) Harvard researchers found children whose mothers were exposed to high pollution levels in the third trimester were twice as likely to develop autism. Video provided by Newsy
Powered by NewsLook.com
UN: Up to One Million Facing Hunger in Ebola-Hit Countries

UN: Up to One Million Facing Hunger in Ebola-Hit Countries

AFP (Dec. 17, 2014) Border closures, quarantines and crop losses in West African nations battling the Ebola virus could lead to as many as one million people going hungry, UN food agencies said on Wednesday. Duration: 00:52 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins