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Alterations in murine macrophage reactivity and bactericidal efficacy following exposure to an environmentally relevant mixture of organochlorine pesticide compounds.
Food Chem Toxicol
January 2025
Mississippi State University College of Veterinary Medicine, Department of Comparative Biomedical Sciences, Mississippi State University, MS, USA.
While there are a number of factors which may promote chronic inflammation, a major factor is pro-inflammatory activation of resident and infiltrating macrophages. Recently, exposures to persistent organic pollutants including organochlorine (OC) pesticides have been implicated in dysregulation of macrophage function. However, the majority of these studies examined single compound effects and not mixture-based effects.
View Article and Find Full Text PDFElectrochemical reduction for chlorinated hydrocarbons contaminated groundwater remediation: Mechanisms, challenges, and perspectives.
Water Res
January 2025
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China. Electronic address:
Electrochemical reduction technology is a promising method for addressing the persistent contamination of groundwater by chlorinated hydrocarbons. Current research shows that electrochemical reductive dechlorination primarily relies on direct electron transfer (DET) and active hydrogen (H) mediated indirect electron transfer processes, thereby achieving efficient dechlorination and detoxification. This paper explores the influence of the molecular charge structure of chlorinated hydrocarbons, including chlorolefin, chloroalkanes, chlorinated aromatic hydrocarbons, and chloro-carboxylic acid, on reductive dechlorination from the perspective of molecular electrostatic potential and local electron affinity.
View Article and Find Full Text PDFPolychlorinated biphenyls induced toxicities upon cell lines and stem cells: a review.
Environ Geochem Health
January 2025
School of Planning, Design and Construction, Michigan State University, East Lansing, MI, 48824, USA.
Polychlorinated biphenyls (PCBs) are persistent organic pollutants emitted during e-waste activities. Upon release into the environment, PCBs can pose harmful effects to the humans and environment. The present review focused on the effects of PCBs on cell proliferation, apoptosis, functional and developmental toxicity and potential possible molecular mechanisms upon cells and stem cells.
View Article and Find Full Text PDFDistribution and bioconcentration of semivolatile organic compounds (SVOCs) in soils and vascular plant Colobanthus quitensis from Sub-Antarctic and Antarctic regions.
Sci Total Environ
February 2025
Centro de Genómica, Ecología y Medio Ambiente (GEMA), Universidad Mayor, Campus Huechuraba, Santiago, Chile; Institute of Environment, Florida International University, University Park, Miami, FL 33199, USA; Data Observatory Foundation, Santiago, Chile. Electronic address:
Semi-volatile organic compounds (SVOCs) are widely distributed across the globe, including polar regions. This study investigates the distribution and bioconcentration of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) in soils and Colobanthus quitensis, while also estimating potential emission sources. Results indicated high concentrations of PAHs in soils and plants from the Sub-Antarctic region, while OCPs and PCBs were more prevalent in the Antarctic region, with higher contaminant concentrations found in soils than in plant tissues.
View Article and Find Full Text PDFMolecular insights into developmental toxicity induced by PCB77 exposure on zebrafish via integrating transcriptomics with adverse outcome pathway.
Sci Total Environ
January 2025
Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China; CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China. Electronic address:
Polychlorinated biphenyls (PCBs), a typical type of persistent organic pollutants (POPs), were previously widely employed as insulating and heat exchange fluids in transformers and capacitors. Despite knowledge of its adverse effects, the precise mechanism underlying PCB77 toxicity remains enigmatic. In this study, we utilized zebrafish as a model organism to explore the toxic effects of various concentrations of PCB77 (10, 200, and 1000 μg/L) and its molecular toxicity mechanisms.
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