Research Results
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2025
J Hazard Mater
This study investigated whether DEHCH, a newly developed alternative plasticizer, has safer endocrine-disrupting effects compared to conventional phthalates and other alternative plasticizers using computer modeling, cell studies, and zebrafish testing. The researchers found that DEHCH showed lower binding affinity to hormone receptors and did not affect hormone-related gene expression or neurosteroid levels in zebrafish, unlike the other tested plasticizers. In contrast, conventional phthalates (DEHP, DINP) and previously proposed alternatives (DINCH, DEHTP) caused hyperactivity in zebrafish and altered hormone-related gene expression and neurosteroid concentrations. The results suggest that DEHCH may be a safer alternative to both conventional phthalates and previously proposed substitutes in terms of endocrine disruption and neurological effects.
2024
Environ Health Perspect
Researchers analyzed 279 chemicals known to cause mammary tumors in rodents and identified 642 additional chemicals that activate estrogen or progesterone signaling, finding that tumor-causing chemicals were significantly more likely to stimulate hormone production, activate estrogen receptors, or damage DNA—characteristics that likely increase breast cancer risk in humans. The study found that more mammary carcinogens worked by increasing hormone production than by directly activating estrogen receptors, with chemicals showing stronger hormone-disrupting effects being most likely to cause tumors, demonstrating a clear dose-response relationship. These findings suggest that hundreds of chemicals currently in use may pose unrecognized breast cancer risks and should not be assumed safe without specific testing for breast effects, with the strongest evidence chemicals prioritized for exposure reduction and improved testing methods needed to identify additional hazardous substances. The research provides a framework for identifying and regulating chemicals that may contribute to breast cancer through hormone disruption and genetic damage—mechanisms supported by both animal and human studies.
2022
J Expo Sci Environ Epidemiol
A comprehensive analysis of 6,793 chemicals in commercial use identified 50 high-priority understudied chemicals that frequently co-occur with known breast cancer-associated chemicals in everyday exposure sources like food, consumer products, and personal care items. Using chemical databases and structural similarity analyses, researchers found these understudied chemicals share physicochemical properties with established mammary carcinogens and potential endocrine disruptors, yet have not been adequately evaluated for breast cancer risk. The findings highlight that real-world chemical exposures occur as mixtures rather than isolated compounds, and that focusing solely on individual well-known chemicals may miss important combination effects—underscoring the urgent need for mixtures-based research in clinical, epidemiological, and toxicological studies to better understand and prevent environmentally-driven breast cancer.
2022
Food Chem
This study introduced a novel material, UVM-7 mesoporous silica modified with cyclodextrins, for extracting endocrine-disrupting chemicals (EDCs) from apple juice. The cyclodextrin units enhance selectivity, allowing for precise detection of EDCs like bisphenols and parabens in low ng/L concentrations, meeting regulatory limits. When compared with conventional methods, the UVM-7-based extraction shows high recovery rates (94-100%) and low deviation, making it a promising, sensitive tool for identifying harmful chemicals leaching from packaging.
2021
Environ Res
Biodegradable polymers are emerging as a promising solution for removing endocrine-disrupting chemicals (EDCs) from wastewater. EDC’s, found in pharmaceuticals, pesticides, and personal care products pose serious health risks, impacting the endocrine system and disrupting reproductive health. Traditional water treatments often fail to fully remove EDCs. Biodegradable polymers, with strong adsorptive properties, offer a sustainable and effective method, helping to minimize EDC exposure and protect human and environmental health.
2013
Green Chemistry
Scientists have developed TiPED (Tiered Protocol for Endocrine Disruption), a voluntary five-tier testing system designed to help chemists identify hormone-disrupting properties in new chemicals during the design phase—before they enter consumer products—ranging from computer-based predictions to cell and animal studies. The protocol was created by experts in green chemistry and environmental health to broadly test whether new chemicals can mimic or block hormones or interfere with hormone signaling, which is critical for preventing endocrine disruption that can contribute to diseases like breast cancer. Testing of six known endocrine disruptors with different mechanisms of action successfully identified all of them, demonstrating the protocol’s effectiveness, though the system will continue evolving as scientific understanding advances. This tool represents an important shift toward preventing chemical hazards at the design stage rather than discovering them years later after widespread human exposure, which could significantly reduce public health risks including breast cancer.