Combined Effects of Norfloxacin and Nanoplastics on the Oxidative Stress and Gut Health of the Juvenile Horseshoe Crab Tachypleus Tridentatus

Combined effects of norfloxacin and polystyrene nanoparticles on the oxidative stress and gut health of the juvenile horseshoe crab Tachypleus tridentatus

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Researchers exposed juvenile horseshoe crabs to an antibiotic (norfloxacin) and polystyrene nanoparticles, finding that both pollutants disrupted gut microbiota composition and suppressed key metabolic pathways in the microbiome, while antioxidant defenses eventually compensated for initial oxidative stress after extended exposure.

Nanoplastic exposure alters oxidative stress, immunity, and digestive function in Pinctada fucata martensii

Effects of polystyrene nanoplastics and copper on intestinal tissue structure, biochemical indexes, and intestinal microflora of the Chinese mitten crab (Eriocheir sinensis)

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Researchers exposed Chinese mitten crabs to polystyrene nanoplastics and copper separately and in combination, finding that combined exposure caused greater oxidative stress and immune disruption than either alone, while also shifting gut bacteria composition in ways that may help the crab regulate the combined toxicity.

Muti-Biomarker Approach and IBR Index to Evaluate the Oxidative Stress of Nanoplastic on the Clams, Meretrix meretrix and Sinonovacula constricta

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Researchers exposed two clam species to polystyrene nanoplastics and measured antioxidant enzyme responses across multiple tissues, finding that oxidative stress patterns varied by species, organ, dose, and time, with gills showing the highest sensitivity and damage levels returning to baseline after a recovery period.

Combined Toxicity of Polybutylene Succinate Microplastics and Levofloxacin in Cristaria Plicata: Insights from Bioaccumulation and Gut Microbiota Dysbiosis

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Researchers exposed freshwater mussels to biodegradable polybutylene succinate microplastics combined with the antibiotic levofloxacin, finding that UV-aged microplastics promoted greater antibiotic accumulation and significantly altered gut microbiota composition, including enrichment of potentially harmful Bacteroides bacteria.