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240114s2024 xx |||||o 00| ||eng c |
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|a 10.1002/aah.10199
|2 doi
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|a pubmed24n1319.xml
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|a (DE-627)NLM367080451
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|a (NLM)38217492
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Schleger, Ieda Cristina
|e verfasserin
|4 aut
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|a Metabolic responses in the gills of Yellowtail Lambari Astyanax lacustris under low- and high-temperature thermal stress
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 07.03.2024
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|a Date Revised 07.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2023 American Fisheries Society.
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|a OBJECTIVE: Ectothermic fish are directly affected by temperature changes in the environment. The aim of this study was to evaluate the metabolic responses in the gills of Yellowtail Lambari Astyanax lacustris under thermal stress
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|a METHODS: To this end, we used spectrophotometry to evaluate the biomarkers of carbohydrate and protein metabolism, antioxidant defense, and oxidative damage in fish subjected to low (15°C) and high (31°C) temperatures, with control groups held at 23°C, for 2, 6, 12, 24, 48, and 96 h
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|a RESULT: The results showed that cold thermal stress did not change the energy demand, and the antioxidant defense was reduced; therefore, the gills were vulnerable to the action of reactive oxygen species (ROS), presenting increased protein carbonylation at 12 h. With heat thermal stress, a higher energy demand was observed, which was verified by an increase in aerobic metabolism by glycolysis and the citric acid cycle. High-temperature stress also increased the antioxidant defenses, as verified by the increased activities of glutathione peroxidase, glutathione reductase, and glutathione S-transferase. However, the antioxidant defense system could not protect tissues from the action of ROS, as protein carbonylation increased at 6 and 24 h, indicating oxidative stress
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|a CONCLUSION: The results showed that (1) temperature variations caused metabolic adjustments in the gills of Yellowtail Lambari, (2) the adaptive responses were different for winter and summer temperatures, and (3) Yellowtail Lambari recovered homeostasis when subjected to thermal stress, even with the occurrence of oxidative stress
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|a Journal Article
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|a aerobic metabolism
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|a antioxidant defense
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|a homeostasis
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|a oxidative stress
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|a reactive oxygen species
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|a Antioxidants
|2 NLM
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|a Reactive Oxygen Species
|2 NLM
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|a Catalase
|2 NLM
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|a EC 1.11.1.6
|2 NLM
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|a Superoxide Dismutase
|2 NLM
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|a EC 1.15.1.1
|2 NLM
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|a Glutathione Transferase
|2 NLM
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|a EC 2.5.1.18
|2 NLM
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|a Pereira, Diego Mauro Carneiro
|e verfasserin
|4 aut
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|a Resende, Anna Carolina
|e verfasserin
|4 aut
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|a Romão, Silvia
|e verfasserin
|4 aut
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|a Herrerias, Tatiana
|e verfasserin
|4 aut
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|a Neundorf, Ananda Karla Alves
|e verfasserin
|4 aut
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|a de Souza, Maria Rosa Dmengeon Pedreiro
|e verfasserin
|4 aut
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|a Donatti, Lucélia
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of aquatic animal health
|d 1998
|g 36(2024), 1 vom: 12. März, Seite 16-31
|w (DE-627)NLM098202006
|x 1548-8667
|7 nnns
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|g volume:36
|g year:2024
|g number:1
|g day:12
|g month:03
|g pages:16-31
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|u http://dx.doi.org/10.1002/aah.10199
|3 Volltext
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