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Elizabeth O'Brien
----- Original Message -----
From: Booker, Susan
To: EHP Media
Sent: Thursday, August 02, 2007 1:11 AM
Subject: August 2007 issue of EHP now available
Stress Modifies Lead Effect on Hypertension
Lead exposure and psychological stress have been independently associated with hypertension in various populations, and animal studies suggest that when they co-occur, their effects may be exacerbated. Researchers examined whether psychological stress modifies the impact of cumulative lead exposure (measured as bone lead levels) on hypertension and blood pressure in Boston (Massachusetts) area community-exposed men participating in the Normative Aging Study. These are the first analyses to look at interactive effects of stress and lead on hypertension in humans. The results suggest that the effect of lead on hypertension is most pronounced among highly stressed individuals, independent of demographic and behavioral risk factors.
View Article <http://www.ehponline.org/docs/2007/10002/abstract.html>
Childhood Blood Lead Levels and Educational Outcomes
Childhood lead poisoning remains a critical environmental health concern. To determine whether lead levels in early childhood are related to educational achievement as measured by performance on end-of-grade (EOG) testing, researchers linked test data for 4th-grade students to blood lead surveillance data for seven North Carolina counties. They found that discernible impact of blood lead levels on EOG testing is demonstrated for early childhood blood lead levels as low as 2 µg/dL; a blood lead level of 5 µg/dL is associated with a decline in reading and mathematics scores. Early childhood lead exposures appear to have more impact on performance on the reading than on the mathematics portions of the tests.
View Article <http://www.ehponline.org/docs/2007/9994/abstract.html>
Media may also be interested in EHP’s news articles. Among this month’s articles is a discussion of how environmental factors interact with mental illness (see “Environmental Connections: A Deeper Look into Mental Illness <http://www.ehponline.org/docs/2007/115-8/focus-abs.html> ”). Another feature examines the growing worldwide trend against public smoking (see “A Change in the Air: Smoking Bans Gain Momentum Worldwide <http://www.ehponline.org/docs/2007/115-8/spheres-abs.html> ”).
To view more: GO TO FULL TABLE OF CONTENTS <http://ehp.niehs.nih.gov/docs/2007/115-8/toc.html>
To see earlier press releases: GO TO MEDIA/PRESS PAGE <http://ehp.niehs.nih.gov/press/index.html>
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