ArticleFish physiology and biochemistry2024
Assessment of cell death in the liver of Labeo rohita on exposure to an emerging contaminant aspirin: an immunofluorescent, flow cytometric and biochemical investigation.
Article in Fish physiology and biochemistry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Aspirin is one of the most frequently detected non-steroidal anti-inflammatory drugs in aquatic environments. Despite its prevalence, toxicity possessed by aspirin to non-target organisms like fish is poorly explored. In the present study, cell death induced by different concentrations of aspirin (1, 10, and 100 µg/L) has been investigated in the liver of fish, Labeo rohita exposed for 28 days. A significant increase (p < 0.05) in the density of caspase-3 positive cells in a dose and duration-dependent manner assessed through immunofluorescent staining indicates caspase-dependent pathway of cell death which may be either through intrinsic or extrinsic pathway. The flow cytometric analysis, in addition, revealed a significant (p < 0.05) decline in the live cells and an increase in apoptotic cells in the liver of fish exposed to aspirin. Cell death due to apoptosis is further indicated by a significant increase (p < 0.05) in the Kupffer cells and tumor necrosis factor-α. The decrease in the activity of cyclooxygenase (COX) enzyme significantly (p < 0.05) in all three exposure concentrations of aspirin suggests COX-dependent pathway of cell death. The present study provides in-depth insights into aspirin-induced cell death in the liver of fish at environmentally realistic concentrations.
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