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The q-RASPR approach for predicting the property and fate of persistent organic pollutants.
Sci Rep
January 2025
Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, via Mario Negri 2, Milano, 20156, Italy.
This study presents a quantitative read-across structure-property relationship (q-RASPR) approach that integrates the chemical similarity information used in read-across with traditional quantitative structure-property relationship (QSPR) models. This novel framework is applied to predict the physicochemical properties and environmental behaviors of persistent organic pollutants, specifically polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs). By utilizing a curated dataset and incorporating similarity-based descriptors, the q-RASPR approach improves the accuracy of predictions, particularly for compounds with limited experimental data.
View Article and Find Full Text PDFStochastic marine ecosystem modeling for statistical interpretation of the uncertainty factors used for the determination of tolerable daily intake of polychlorinated biphenyls.
Environ Pollut
December 2024
Department of Systems Design for Ocean-Space, Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya, Yokohama, Kanagawa, 2408501, Japan. Electronic address:
This study developed a numerical simulation model for a marine ecosystem to determine accumulation levels of polychlorinated biphenyls (PCBs) in top predators (seabasses). The simulated results were used for calculating probabilities of exceeding tolerable daily intake (TDI) of seafoods enforced by the US and Japanese governments. The model was applied to Tokyo Bay, Japan.
View Article and Find Full Text PDFPersistent organic pollutants and endogenous sex-related hormones in Hispanic/Latino adults: The Hispanic Community health study/study of Latinos (HCHS/SOL).
Environ Res
December 2024
Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, USA.
Background: Previous studies have demonstrated associations of persistent organic pollutants (POPs) with sex-related hormones; however, findings were inconsistent. Sex-specific impacts and pathways through which adiposity influences associations are not completely understood. We sought to evaluate sex-specific associations of POPs serum concentration with sex-related hormones and to explore pathways through which adiposity may modify associations.
View Article and Find Full Text PDFTwo Hits of EDCs Three Generations Apart: Evaluating Multigenerational Anxiety-Like Behavioral Phenotypes in Male Rats Exposed to Aroclor 1221 and Vinclozolin.
Environ Health Perspect
December 2024
Division of Pharmacology & Toxicology, The University of Texas at Austin, Austin, Texas, USA.
Background: Increasing evidence supports an association of endocrine-disrupting chemical (EDC) exposures with adverse biological effects in humans and wildlife. Recent studies reveal that health consequences of environmental exposures may persist or emerge across generations. This creates a dual conundrum: that we are exposed to contemporary environmental chemicals overlaid upon the inheritance of our ancestors' exposure profiles.
View Article and Find Full Text PDFTwo Hits of EDCs Three Generations Apart: Evaluating Multigenerational Anxiety-Like Behavioral Phenotypes in Female Rats Exposed to Aroclor 1221 and Vinclozolin.
Environ Health Perspect
December 2024
Division of Pharmacology & Toxicology, The University of Texas at Austin, Austin, Texas, USA.
Background: Endocrine-disrupting chemicals (EDCs) are exogenous chemical compounds that interfere with the normal function of the endocrine system and are linked to direct and inherited adverse effects in both humans and wildlife. Legacy EDCs such as polychlorinated biphenyls (PCBs) are no longer used yet remain detectable in biological specimens around the world; concurrently, we are exposed to newer EDCs like the fungicide vinclozolin (VIN). This combination of individuals' direct environmental chemical exposures and any heritable changes caused by their ancestors' chemical exposures leads to a layered pattern of both direct and ancestrally inherited exposures that might have cumulative effects over generations.
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