Articles related to ENVIRONMENTAL HEALTH

A large ECHO Cohort analysis associated several pregnancy urinary chemical biomarkers with modest shifts in gestational age and fetal growth measures. The observational findings did not establish causality.

A mechanistic compartmental model integrating menstrual fluid binding data estimated that less than 0.3% of theoretically released lead from tampons would be available for vaginal tissue absorption under a four-hour wear scenario.

“This study establishes chlorpyrifos as a specific environmental risk factor for Parkinson’s disease, not just pesticides as a general class,” said Dr. Jeff Bronstein, professor of Neurology at UCLA Health and the study’s senior author.

“Increased exposure to bedroom LAN, particularly during the post-sleep period, is significantly associated with earlier onset of breast development in girls and testicular development in boys.” — Study authors, Journal of Clinical Endocrinology & Metabolism

“The variants we saw have been part of the human genome for a very long time, but the modern chemical environment is new, and we’re beginning to understand how these interactions might influence conditions like endometriosis.”

Scatterplots were without evidence of an exposure threshold below which associations were absent, indicating linear dose-response relationships across all exposure levels.