Antinuclear

Australian news, and some related international items

Rising temperatures threaten health of fetuses, researchers say

March 6, 2019  By Ruth SoRelle, Texas Climate News  Climate change evokes images of people swimming out of their flooded neighborhoods, cars bumper-to-bumper as drivers flee burning homes, merciless sun that dries up rivers and lakes. However, climate change is more than these very visible disasters. Of equal or greater danger is the silent, unseen damage that may occur in the gestating fetus – damage that can last a lifetime.

In a recent article in the Journal of the American Heart Association, an international group of researchers concluded that higher temperatures caused by climate change may result in up to 7,000 additional infants with congenital heart defects in Texas and seven other representative states over an 11-year period.

The researchers combined a multi-state database of birth defects with another of population. They integrated that with maps of temperatures across the nation and projected temperature increases from 2025-2035 to predict an increase in the numbers of infants born with serious heart defects.

In Texas and Arkansas (which the researchers defined as the South), for example, they foresee as much as a 34 percent increase in newborns with certain malformations such as tetralogy of fallot (a combination of four defects that affects the flow of blood) and as much as a 35 percent increase in another type involving a hole in the wall between the heart’s chambers.

In the Northeast they predict a 38.6 percent increase in atrial septal defect (a hole in the wall that divides the upper chambers of the heart). The Midwest is expected to have the highest increases of heat exposure to pregnant women, excessively hot days, heat-event frequency and heat event duration, when compared to the baseline period.

This study is a continuation of a 2018 study that first linked long duration of hot weather with heart defects, particularly in the southern and northeastern United States.

Scientists believe that when pregnant women are exposed to heat early in pregnancy, two problems can occur – fetal death or interference with the process in which cells generate new proteins, inducing severe fetal malformation. In the newer study, those problems appear associated with congenital heart defects……. http://texasclimatenews.org/?p=16061

Advertisements

March 9, 2019 - Posted by | General News

No comments yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: