Halogen gas exposure: toxic effects on the parturient.

Toxicology Mechanisms and Methods
Dylan R AddisSadis Matalon

Abstract

The elemental halogens include chlorine, bromine, and phosgene. Halogen gas can be directly weaponized and employed in warfare or terrorism. Industrial stockpiles or halogen transport can provide targets for terrorist attack as well as an origin for accidental release creating a risk for potential mass-casualty incidents. Pregnant and post-partum women represent a substantial and vulnerable subset of the population who may be at particular risk during an attack or accidental exposure. We review the effects of halogen exposure on the parturient with a focus on bromine toxicity. Bromine is the most extensively studied agent in the context of pregnancy and to-date murine models form the basis for the majority of current knowledge. Pregnancy potentiates the acute lung injury after halogen exposure. In addition, halogen exposure precipitates a preeclamptic-like syndrome in mice. This phenotype is characterized by systemic and pulmonary hypertension, endothelial dysfunction, decreased cardiac output, placental injury and fetal growth restriction. This constellation contributes to increased maternal and fetal mortality observed after bromine exposure. Angiogenic imbalance is noted with overexpression of the soluble fms-like tyrosine k...Continue Reading

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Citations

Jun 25, 2020·American Journal of Physiology. Lung Cellular and Molecular Physiology·Dylan R AddisJames A Mobley
Aug 26, 2021·Physiology·Dylan R AddisSadis Matalon

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