Featured Research

from universities, journals, and other organizations

Environmental exposures unlikely to alter thyroid function of pregnant women, fetuses

Date:
September 20, 2012
Source:
American Thyroid Association
Summary:
Exposures to perchlorate (ClO4), a compound found at low levels in the environment, and thiocyanate (SCN), a compound found in cigarette smoke and some foods, is unlikely to alter thyroid function in pregnant women and fetuses, according to new data.

Exposures to perchlorate (ClO4), a compound found at low levels in the environment, and thiocyanate (SCN), a compound found in cigarette smoke and some foods, is unlikely to alter thyroid function in pregnant women and fetuses, according to new data presented at the 82nd Annual Meeting of the American Thyroid Association (ATA) in Québec City, Québec, Canada.

"The developing fetus is reliant on maternal iodine for thyroid hormone production for normal neurodevelopment. Environmental exposures to ClO4 and SCN exposures during pregnancy could potentially decrease thyroidal iodine uptake in the mother and/or her fetus and subsequent thyroid hormone synthesis," said Elizabeth Pearce, MD, of Boston Medical Center, Program Co-Chair of the ATA Annual Meeting and co-author of the study.

Led by Angela Leung at the Boston University School of Medicine in Boston, Mass., a team of researchers thus sought to determine for the first time the urinary CIO4 and SCN concentrations in Canada. They recruited 150 pregnant women from four low-risk antenatal outpatient clinics in Toronto, Canada, to provide a spot urine sample for the measurement of both compounds. The women were in their second and third trimesters, primarily Caucasian, well educated, and relatively affluent. The median urinary CIO4 concentration was 3.2 lg/L (range, 0.5-48.1 lg/L), and the median urinary SCN concentration was 351lg/L (range, 28-1195lg/L). These women were iodine sufficient (median urinary iodine concentration 227.1lg/L), as was previously presented at the 2011 American Thyroid Association meeting.

Researchers noted that low levels of both CIO4 and SCN are comparable to those previously reported by in iodine-deficient and sufficient pregnant women from Wales, Italy, Argentina, and the United States where environmental exposures had no effect on maternal thyroid function.


Story Source:

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


Cite This Page:

American Thyroid Association. "Environmental exposures unlikely to alter thyroid function of pregnant women, fetuses." ScienceDaily. ScienceDaily, 20 September 2012. <www.sciencedaily.com/releases/2012/09/120920153115.htm>.
American Thyroid Association. (2012, September 20). Environmental exposures unlikely to alter thyroid function of pregnant women, fetuses. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/2012/09/120920153115.htm
American Thyroid Association. "Environmental exposures unlikely to alter thyroid function of pregnant women, fetuses." ScienceDaily. www.sciencedaily.com/releases/2012/09/120920153115.htm (accessed July 23, 2014).

Share This




More Health & Medicine News

Wednesday, July 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Courts Conflicted Over Healthcare Law

Courts Conflicted Over Healthcare Law

AP (July 22, 2014) — Two federal appeals courts issued conflicting rulings Tuesday on the legality of the federally-run healthcare exchange that operates in 36 states. (July 22) Video provided by AP
Powered by NewsLook.com
Why Do People Believe We Only Use 10 Percent Of Our Brains?

Why Do People Believe We Only Use 10 Percent Of Our Brains?

Newsy (July 22, 2014) — The new sci-fi thriller "Lucy" is making people question whether we really use all our brainpower. But, as scientists have insisted for years, we do. Video provided by Newsy
Powered by NewsLook.com
Scientists Find New Way To Make Human Platelets

Scientists Find New Way To Make Human Platelets

Newsy (July 22, 2014) — Boston scientists have discovered a new way to create fully functioning human platelets using a bioreactor and human stem cells. Video provided by Newsy
Powered by NewsLook.com
Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

TheStreet (July 21, 2014) — New research shows Gilead Science's drug Sovaldi helps in curing hepatitis C in those who suffer from HIV. In a medical study, the combination of Gilead's Hep C drug with anti-viral drug Ribavirin cured 76% of HIV-positive patients suffering from the most common hepatitis C strain. Hepatitis C and related complications have been a top cause of death in HIV-positive patients. Typical medication used to treat the disease, including interferon proteins, tended to react badly with HIV drugs. However, Sovaldi's %1,000-a-pill price tag could limit the number of patients able to access the treatment. TheStreet's Keris Lahiff reports from New York. Video provided by TheStreet
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:
from the past week

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