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  • Title: Acute Toxicity Assays with the Artemia salina Model: Assessment of Variables.
    Author: Salay G, Lucarelli N, Gascón TM, Carvalho SS, Veiga GRLD, Reis BDCAA, Fonseca FLA.
    Journal: Altern Lab Anim; 2024 May; 52(3):142-148. PubMed ID: 38578132.
    Abstract:
    The use of the brine shrimp Artemia salina (Leach) in acute toxicity assays has great potential due to its simplicity, low cost and reproducibility. In the current study, some of the variables that can influence the reliability of the assay in terms of test organism survival, were evaluated as part of its implementation in our laboratory. The quality and type of water used, the buffer components and other parameters (salinity, pH and dissolved oxygen level), were all evaluated for optimisation purposes. DMSO (dimethyl sulphoxide) was used as the test substance in the toxicity assay, to evaluate the concentration limits as a solvent in sample preparation. Regarding the buffer salinity, pH and dissolved oxygen level, we found that a 25% to 30% deviation from the standard values did not affect the survival of the nauplii (the first-instar larval stage) under assay conditions. In summary, we corroborate the potential use of this model for the prediction of the toxic potential of substances, to inform future testing strategies.
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