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Microplastics, Endocrine Disruptors, and Oxidative Stress: Mechanisms and Health Implications
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This review examines how microplastics and nanoplastics trigger oxidative stress as a central mechanism of toxicity across multiple organ systems, including reproductive, cardiovascular, hepatic, and neurological tissues. The study highlights that these particles often carry endocrine-disrupting chemicals like bisphenol A and phthalates, which together generate reactive oxygen species, impair mitochondrial function, and compromise antioxidant defenses.
Microplastics and nanoplastics (<5 mm and <1 μm, respectively) are emerging contaminants now ubiquitous across environmental matrices and increasingly recognized for their impacts on human health. These particles commonly adsorb or contain endocrine-disrupting chemicals-such as bisphenol-A and phthalate additives-that together trigger complex biological responses. This review examines the central role of oxidative stress in mediating the toxicity of microplastics and associated endocrine disruptors across multiple organ systems. We discuss mechanisms including cellular uptake, reactive oxygen species generation, mitochondrial dysfunction, impairment of antioxidant defenses, and activation of key signaling pathways. Organ-specific effects on reproductive health, cardiovascular function, hepatic metabolism, gut barrier integrity, and neurological systems are highlighted. Current evidence strongly supports oxidative stress as a pivotal mechanism linking microplastic exposure to systemic toxicity, underscoring important implications for public health policy and clinical intervention strategies.
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Microplastics and Nanoplastics in Human Health: Toxicological Mechanisms Involving Oxidative Stress, Endocrine Interference, and Inflammatory Responses
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Tiny plastic particles called microplastics and nanoplastics are now found everywhere—in our air, water, and food—and this review of existing research shows they may harm our health in three main ways. These particles can damage cells, disrupt hormones, and cause inflammation throughout the body, potentially affecting organs like the heart, liver, and brain. While scientists are still studying exactly how dangerous these plastic particles are to humans, the evidence suggests we should be concerned about our constant exposure to them.
Micro- and Nanoplastics as Disruptors of the Endocrine System—A Review of the Threats and Consequences Associated with Plastic Exposure
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This review summarizes how micro- and nanoplastics carry endocrine-disrupting chemicals that interfere with hormones controlling reproduction, thyroid function, metabolism, and brain development. The reproductive system is especially vulnerable, with studies showing that plastic particle exposure can cause oxidative stress, cell death, and infertility, raising serious concerns given how widespread these particles are in food and the environment.
The Pressing Issue of Micro- and Nanoplastic Contamination: Profiling the Reproductive Alterations Mediated by Oxidative Stress
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This review examined how micro- and nanoplastics affect reproductive health across aquatic and land-based organisms, focusing on oxidative stress as the primary damage mechanism. Researchers found that these plastic particles can reach the gonads through the bloodstream and even accumulate in human and mouse placenta, with harmful effects on sperm and egg development, embryo growth, and offspring survival. The severity of reproductive harm appears to increase with smaller particle sizes and longer exposure times.
Reproductive toxicity of microplastics role of oxidative stress in cellular and molecular damage
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This review synthesizes in vitro, in vivo, and epidemiological evidence on how microplastics cause reproductive toxicity, focusing on oxidative stress as the central mechanism. MPs infiltrate reproductive tissues, generate reactive oxygen species, and disrupt gametogenesis, hormone regulation, and embryonic development across multiple species.
Microplastics and Their Toxicological Impacts on Human Health: An Overview
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Researchers synthesize recent literature on microplastic contamination, covering sources, environmental distribution, detection methods, and mechanistic evidence linking MP exposure to oxidative stress, inflammation, mitochondrial damage, and potential neurotoxic and carcinogenic effects across multiple human organ systems.
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