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Analyzing and quantifying the pervasiveness of microplastic beads in mouse livers, spleens, gastrointestinal tract, and kidneys after oral ingestion
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Oral ingestion of microplastic beads in mice resulted in measurable accumulation across multiple organs including the liver, spleen, gastrointestinal tract, and kidneys, demonstrating systemic distribution beyond the gut. These findings in a mammalian model raise direct concerns about what happens when humans regularly ingest microplastics through food and water.
Microplastics are generally defined as plastic particles with a length between 1 μm and 5 mm, and nanoplastics are generally defined as plastic p |
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The toxicity of polyethylene microplastics on molecular and biochemical parameters in albino mice
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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.
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.
Lifetime exposure to microplastics: From consumption to distribution in the body
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This review pulls together existing research to estimate that over a lifetime, the average person swallows or breathes in about 224 million tiny plastic particles, and roughly 59% of that stays in the body rather than being flushed out. Exposure builds up most during adulthood, mainly from foods like edible oils and fruits, plus air, and these particles have been found lodged in various organs, including surprisingly high levels in ovarian fluid. While scientists are still figuring out exactly how this affects health, the sheer scale of lifelong buildup is a strong signal that reducing plastic exposure, especially in food and packaging, deserves serious
Deciphering potential implications of dietary microplastics for human health
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Researchers evaluated a World Health Organization report on dietary exposure to nano- and microplastics, concluding that while humans are clearly ingesting these particles through food and beverages, convincing evidence of adverse health effects remains elusive due to major detection and data gaps.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.