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Metal ion transport: unveiling the difference of nanoplastics and microplastics in Chiromantes dehaani glucolipid metabolism
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This study investigates the differences between how nanoplastics and microplastics affect metal ion transport and glucolipid metabolism in the estuarine crab Chiromantes dehaani. Researchers found that microplastic pollution in estuaries can significantly alter how organisms process metals and metabolize fats and sugars. The findings highlight that particle size matters when assessing the biological impacts of plastic pollution on aquatic species important to food security.
Microplastic pollution has emerged as a prominent concern within the global environmental landscape, given its propensity for substantial accumulation in estuaries, thereby posing threats to both biodiversity and human food security.
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Effects of micro‐ and nanoplastics on the physiology and metabolism of Portunus trituberculatus
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Researchers exposed the swimming crab Portunus trituberculatus to micro- and nanoplastics (MNPs) and assessed physiological and metabolic responses across different tissues, finding that while lethal effects were minimal, MNPs triggered significant stress responses. Nanoplastics produced more severe effects than microplastics, with tissue-specific differences in enzyme reactions suggesting differential organ-level sensitivity to MNP contamination.
Effects of different concentrations and particle sizes of nanoplastics on gut microbiology, metabolism, and immunity in Chiromantes dehaani
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This study exposed crabs to nanoplastics of different sizes and concentrations and found significant harm to their gut health, including disrupted gut bacteria, reduced digestive enzyme activity, increased cell death, and inflammation. The smallest nanoplastics (75 nm) were most likely to promote harmful bacteria and trigger cell death, while medium-sized particles (500 nm) caused the strongest inflammatory response. These findings are relevant to human health because they demonstrate how nanoplastics disrupt gut function, which is a concern given that humans also ingest nanoplastics through food and water.
Gill dysfunction and metabolic disruption: the size-dependent effects of microplastics on Chiromantes haematocheir
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Researchers exposed the brackish-water crab Chiromantes haematocheir to polystyrene particles at three sizes (75 nm, 500 nm, 1000 nm) for 21 days and found that smaller particles caused greater gill accumulation, elevated oxidative stress, and more pronounced disruption of immune function, energy metabolism, and apoptotic pathways.
Gill dysfunction and metabolic disruption: the size-dependent effects of microplastics on Chiromantes haematocheir
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Researchers exposed the brackish-water crab Chiromantes haematocheir to polystyrene particles at three sizes (75 nm, 500 nm, 1000 nm) for 21 days and found that smaller particles caused greater gill accumulation, elevated oxidative stress, and more pronounced disruption of immune function, energy metabolism, and apoptotic pathways.
Microplastic impacts physiological mechanisms of marine, diadromous, and freshwater crustaceans
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Researchers compared the physiological effects of glitter microplastics on marine, diadromous, and freshwater shrimp species at their respective natural salinities, finding species-specific differences in how microplastic exposure affected osmoregulation, oxidative stress, and tissue morphology.
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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.