ArticleJournal of comparative physiology. B, Biochemical, systemic, and environmental physiology2022
Cold and warm waters: energy metabolism and antioxidant defenses of the freshwater fish Astyanax lacustris (Characiformes: Characidae) under thermal stress.
Article in Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 47 citations in OpenAlex.
- Analysis of hepatic and serum responses to acute cold stress in juvenile yellowfin tuna Thunnus albacares (Bonnaterre 1788).Journal of fish biology · 2026Article
- Antioxidant Defenses in the Kidneys and Heart of the Freshwater Fish Astyanax lacustris Subjected to High (31°C) and Low (15°C) Temperatures.Cell biochemistry and function · 2025Article
- Effects of Chronic Thermal Stress on the Physiology, Metabolism, Histology, and Gut Microbiota of JuvenileAnimals : an open access journal from MDPI · 2025Article
- Hdac11 inhibits apoptosis in zebrafish cells under cold stress via downregulating pdcd6 through its downstream enhancer.Molecular biology reports · 2025Article
- Zootechnical and reproductive performance of juvenile maleAnimal reproduction · 2025Article
- Dietary Thymol Supplementation Promotes Antioxidant Responses and Thermal Stress Resistance in Rainbow Trout,Animals : an open access journal from MDPI · 2024Article
- Hematological, biochemical and oxidative responses induced by thermal shock in juvenile Tambaqui (Colossoma macropomum) and its hybrid Tambatinga (Colossoma macropomum x Piaractus brachypomus).Fish physiology and biochemistry · 2024Article
- Effects of cold acclimation on serum biochemical parameters and metabolite profiles in Schizothorax prenanti.BMC genomics · 2024Article
- Assessing physiological responses and oxidative stress effects in Rhamdia voulezi exposed to high temperatures.Fish physiology and biochemistry · 2024Article
- Regulation of PGC-1α of the Mitochondrial Energy Metabolism Pathway in the Gills of Indian Medaka (International journal of molecular sciences · 2023Article
- Different cold tolerances among three strains of large yellow croaker: related to antioxidant defense and energy metabolism.Fish physiology and biochemistry · 2023Article
- Transcriptomic Networks Reveal the Tissue-Specific Cold Shock Responses in Japanese Flounder (Biology · 2023Article
- Cold Acclimation for Enhancing the Cold Tolerance of Zebrafish Cells.Frontiers in physiology · 2021Article
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Authors and funding
11 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Subtropical fish are exposed to seasonal variations in temperature that impose a set of adaptations on their metabolism necessary for the maintenance of homeostasis. In this study, we addressed the effects of temperature variation on the metabolism of Astyanax lacustris, a species of freshwater fish common in the subtropical region of Brazil. Biomarkers of carbohydrate and protein metabolism, antioxidant defense, and oxidative damage were evaluated in the liver of A. lacustris exposed to low (15 °C) and high (31 °C) temperature thermal shock, with controls at 23 °C for 2, 6, 12, 24, 48, 72, and 96 h. A high energy demand was observed during the first 48 h of exposure to 15 °C, which is necessary for metabolic adjustment at low temperatures, with an increase in glycolysis, citric acid cycle, and amino acid catabolism. In addition, at 31 °C, glucose was exported in the first 12 h of exposure, and an increase in the citric acid cycle suggested acetyl-CoA as the pathway substrate, originating from the oxidation of lipids. The antioxidant defenses did not change at 15 °C, as opposed to 31 °C, in which there were changes in several antioxidant defense markers, indicating a response to the production of ROS. However, oxidative stress was observed at both temperatures, with oxidative damage detected by lipid peroxidation at 15 °C and protein carbonylation at 31 °C.
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