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Chronic Toxicity of Polystyrene Microplastics in Blood and Organs of Albino Mice: a Histopathological and Biochemical Assessment
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Researchers assessed chronic toxicity of polystyrene microplastics in albino mice through histopathological and biochemical analysis of blood and organs, examining how repeated exposure alters tissue integrity and physiological markers over time.
Peer reviewed open access scientific journal publishing research in animal sciences, plant sciences, fisheries, wildlife, agricultural economics and rural sociology.
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Researchers assessed the molecular and biochemical effects of polyethylene microplastic exposure in albino mice, finding dose-dependent toxicity across multiple organ systems, with measurable alterations in liver enzymes, oxidative stress markers, and blood cell parameters consistent with systemic health impacts.
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Researchers reviewed evidence from cell and animal studies on the toxic effects of micro- and nanoplastics, finding that these particles can cause inflammation, oxidative stress, and organ damage in laboratory models, raising concern about what chronic low-level human exposure might mean for long-term health.
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Scientists found that tiny plastic particles called nanoplastics can get inside liver and connective tissue cells from rats, and even sneak into the cell's nucleus, where DNA is stored. Cells exposed to these plastics showed signs of stress and damage, including swelling and higher rates of cell death, suggesting these ultra-small plastic particles may be more harmful than previously thought. While this study used animal cells rather than human cells, it raises important questions about what everyday exposure to nanoplastics (found in food packaging, water, and other sources) might mean for our own cellular health.
Stress (Cortisol) and Hepatotoxic Effects of Polystyrene Micro- and Nanoplastics in Swiss Albino Mice: A Comparative Study
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Researchers exposed Swiss albino mice to polystyrene micro- and nanoplastics and compared the stress and liver toxicity responses, finding that both sizes elevated cortisol levels and caused hepatotoxic damage, with nanoplastics generally producing more pronounced physiological disruption than microplastics.
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A comprehensive review documents how microplastics enter the human body through ingestion, inhalation, and skin contact, then reach the lungs, liver, kidneys, brain, and reproductive organs, triggering oxidative stress, inflammation, endocrine disruption, and genotoxicity. These biochemical pathways link microplastic exposure to serious chronic conditions including metabolic syndrome, neurodegenerative disease, reproductive dysfunction, and cancer.
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