Impact of Polystyrene Microplastic Exposure on Gilthead Seabream (Sparus Aurata Linnaeus, 1758): Differential Inflammatory and Immune Response between Anterior and Posterior Intestine

Impact of polystyrene microplastic exposure on gilthead seabream (Sparus aurata Linnaeus, 1758): Differential inflammatory and immune response between anterior and posterior intestine

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Researchers fed gilthead seabream polystyrene microplastics for 21 days and found they triggered inflammation and immune disruption in both sections of the intestine, with the rear portion more severely affected. The microplastics activated inflammatory signaling pathways and weakened the gut barrier by reducing tight junction proteins. The findings suggest microplastic ingestion could compromise gut health and immune function in fish.

Effect of polystyrene microplastics and temperature on growth, intestinal histology and immune responses of brine shrimp Artemia franciscana

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Researchers exposed brine shrimp to polystyrene microplastics at different temperatures, finding that higher plastic concentrations combined with warmer water reduced survival, damaged intestinal tissue, and triggered immune stress responses — suggesting climate change may amplify microplastic harm in marine ecosystems.

Physiological Alterations and Immune Modulation in Fish Exposed to Microplastics

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Researchers reviewed the physiological and immunological effects of microplastic exposure in fish, finding that these particles smaller than 5 mm induce a range of biological disruptions including immune modulation, oxidative stress, and systemic health impacts with broader implications for aquatic ecosystem integrity.

Gauging the effects of a chronic exposure to polystyrene nanoplastics in the liver and intestine of Carassius auratus

New Insights into the Effects of Polystyrene Microplastics on Freshwater Fish, Labeo rohita: Assessment on Histopathology, Mineral Composition, Bioaccumulation and Antioxidant Activity

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Researchers fed Labeo rohita fish diets containing up to 2.5% polystyrene microplastics over 90 days and found dose-dependent intestinal damage, reduced antioxidant enzyme activity, altered mineral composition in muscle tissue, and bioaccumulation of particles, suggesting risks to farmed fish health and potentially to people who consume them.