Biomarkers of homeostasis, allostasis, and allostatic overload in decapod crustaceans of distinct habitats and osmoregulatory strategies: an empirical approach.

Autor: Freire CA; Departamento de Fisiologia, Brazil. Electronic address: osmolab98@gmail.com., Cuenca ALR; Programa de Pós-Graduação em Zoologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Centro Politécnico, Curitiba, PR CEP 81531-980, Brazil., Leite RD; Programa de Pós-Graduação em Zoologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Centro Politécnico, Curitiba, PR CEP 81531-980, Brazil., Prado AC; Programa de Pós-Graduação em Zoologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Centro Politécnico, Curitiba, PR CEP 81531-980, Brazil., Rios LP; Programa de Pós-Graduação em Zoologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Centro Politécnico, Curitiba, PR CEP 81531-980, Brazil., Stakowian N; Programa de Pós-Graduação em Zoologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Centro Politécnico, Curitiba, PR CEP 81531-980, Brazil., Sampaio FDF; Instituto Federal do Paraná, Av. João Negrão 1285, Curitiba, PR CEP 80230-150, Brazil.
Jazyk: angličtina
Zdroj: Comparative biochemistry and physiology. Part A, Molecular & integrative physiology [Comp Biochem Physiol A Mol Integr Physiol] 2020 Oct; Vol. 248, pp. 110750. Date of Electronic Publication: 2020 Jun 25.
DOI: 10.1016/j.cbpa.2020.110750
Abstrakt: The term "allostasis", meaning the assumption that homeostasis may not be as static as the term implies, has been vastly employed for mammals, and other vertebrates, for which the degree of internal stability is maximal, according to their higher complexity. We have here investigated how these states of homeostasis, allostasis, and allostatic overload could be diagnosed in decapod crustaceans, upon acute salinity challenges. Decapods of distinct lineages and habitats have been submitted to 3 salinity levels for 6 and 12 h. The first salinity was the habitat salinity (control), considered as the one that allows the homeostatic condition. The next salinity represented a mild challenge, that would potentially lead to allostasis, and the third salinity was intended to represent an overload, albeit not lethal. Species used were: the marine crab Hepatus pudibundus (Hp, osmoconformer, salinities 33, 25, and 20‰), the marine/estuarine swimming crab Callinectes danae (Cd, weak regulator, salinities 30, 20, and 10‰), and the diadromous freshwater prawn Macrobrachium acanthurus (Ma, strong regulator, salinities <0.5, 15, and 30‰). These 3 species follow a sequence of growing regulatory capacity (HpCompeting Interests: Declaration of Competing Interest Authors declare that there are no conflicts of interest or competing interests to report.
(Copyright © 2020 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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