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Molecular biomarkers for oxidative stress and neuronal damage in red-bellied pacu (Piaractus brachypomus). AQUACULTURE AND FISHERIES 2022. [DOI: 10.1016/j.aaf.2022.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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Chu PY, Li JX, Hsu TH, Gong HY, Lin CY, Wang JH, Huang CW. Identification of Genes Related to Cold Tolerance and Novel Genetic Markers for Molecular Breeding in Taiwan Tilapia ( Oreochromis spp.) via Transcriptome Analysis. Animals (Basel) 2021; 11:3538. [PMID: 34944312 PMCID: PMC8697892 DOI: 10.3390/ani11123538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/08/2021] [Accepted: 12/10/2021] [Indexed: 11/16/2022] Open
Abstract
Taiwan tilapia is one of the primary species used in aquaculture practices in Taiwan. However, as a tropical fish, it is sensitive to cold temperatures that can lead to high mortality rates during winter months. Genetic and broodstock management strategies using marker-assisted selection and breeding are the best tools currently available to improve seed varieties for tilapia species. The purpose of this study was to develop molecular markers for cold stress-related genes using digital gene expression analysis of next-generation transcriptome sequencing in Taiwan tilapia (Oreochromis spp.). We constructed and sequenced cDNA libraries from the brain, gill, liver, and muscle tissues of cold-tolerance (CT) and cold-sensitivity (CS) strains. Approximately 35,214,833,100 nucleotides of raw sequencing reads were generated, and these were assembled into 128,147 unigenes possessing a total length of 185,382,926 bp and an average length of 1446 bp. A total of 25,844 unigenes were annotated using five protein databases and Venny analysis, and 38,377 simple sequence repeats (SSRs) and 65,527 single nucleotide polymorphisms (SNPs) were identified. Furthermore, from the 38-cold tolerance-related genes that were identified using differential gene expression analysis in the four tissues, 13 microsatellites and 37 single nucleotide polymorphism markers were identified. The results of the genotype analysis revealed that the selected markers could be used for population genetics. In addition to the diversity assessment, one of the SNP markers was determined to be significantly related to cold-tolerance traits and could be used as a molecular marker to assist in the selection and verification of cold-tolerant populations. The specific genetic markers explored in this study can be used for the identification of genetic polymorphisms and cold tolerance traits in Taiwan tilapia, and they can also be used to further explore the physiological and biochemical molecular regulation pathways of fish that are involved in their tolerance to environmental temperature stress.
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Affiliation(s)
- Pei-Yun Chu
- Department of Aquaculture, National Taiwan Ocean University, Keelung City 20224, Taiwan; (P.-Y.C.); (J.-X.L.); (T.-H.H.); (H.-Y.G.)
| | - Jia-Xian Li
- Department of Aquaculture, National Taiwan Ocean University, Keelung City 20224, Taiwan; (P.-Y.C.); (J.-X.L.); (T.-H.H.); (H.-Y.G.)
| | - Te-Hua Hsu
- Department of Aquaculture, National Taiwan Ocean University, Keelung City 20224, Taiwan; (P.-Y.C.); (J.-X.L.); (T.-H.H.); (H.-Y.G.)
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung City 20224, Taiwan
| | - Hong-Yi Gong
- Department of Aquaculture, National Taiwan Ocean University, Keelung City 20224, Taiwan; (P.-Y.C.); (J.-X.L.); (T.-H.H.); (H.-Y.G.)
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung City 20224, Taiwan
| | - Chung-Yen Lin
- Institute of Information Science, Academia Sinica, Taipei 11529, Taiwan;
| | - Jung-Hua Wang
- Department of Electrical Engineering, National Taiwan Ocean University, Keelung City 20224, Taiwan;
- AI Research Center, National Taiwan Ocean University, Keelung City 20224, Taiwan
| | - Chang-Wen Huang
- Department of Aquaculture, National Taiwan Ocean University, Keelung City 20224, Taiwan; (P.-Y.C.); (J.-X.L.); (T.-H.H.); (H.-Y.G.)
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung City 20224, Taiwan
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Pushchina EV, Stukaneva ME, Varaksin AA. Hydrogen Sulfide Modulates Adult and Reparative Neurogenesis in the Cerebellum of Juvenile Masu Salmon, Oncorhynchus masou. Int J Mol Sci 2020; 21:ijms21249638. [PMID: 33348868 PMCID: PMC7766854 DOI: 10.3390/ijms21249638] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/03/2020] [Accepted: 12/15/2020] [Indexed: 01/31/2023] Open
Abstract
Fish are a convenient model for the study of reparative and post-traumatic processes of central nervous system (CNS) recovery, because the formation of new cells in their CNS continues throughout life. After a traumatic injury to the cerebellum of juvenile masu salmon, Oncorhynchus masou, the cell composition of the neurogenic zones containing neural stem cells (NSCs)/neural progenitor cells (NPCs) in the acute period (two days post-injury) changes. The presence of neuroepithelial (NE) and radial glial (RG) neuronal precursors located in the dorsal, lateral, and basal zones of the cerebellar body was shown by the immunohistochemical (IHC) labeling of glutamine synthetase (GS). Progenitors of both types are sources of neurons in the cerebellum of juvenile O. masou during constitutive growth, thus, playing an important role in CNS homeostasis and neuronal plasticity during ontogenesis. Precursors with the RG phenotype were found in the same regions of the molecular layer as part of heterogeneous constitutive neurogenic niches. The presence of neuroepithelial and radial glia GS+ cells indicates a certain proportion of embryonic and adult progenitors and, obviously, different contributions of these cells to constitutive and reparative neurogenesis in the acute post-traumatic period. Expression of nestin and vimentin was revealed in neuroepithelial cerebellar progenitors of juvenile O. masou. Patterns of granular expression of these markers were found in neurogenic niches and adjacent areas, which probably indicates the neurotrophic and proneurogenic effects of vimentin and nestin in constitutive and post-traumatic neurogenesis and a high level of constructive metabolism. No expression of vimentin and nestin was detected in the cerebellar RG of juvenile O. masou. Thus, the molecular markers of NSCs/NPCs in the cerebellum of juvenile O. masou are as follows: vimentin, nestin, and glutamine synthetase label NE cells in intact animals and in the post-traumatic period, while GS expression is present in the RG of intact animals and decreases in the acute post-traumatic period. A study of distribution of cystathionine β-synthase (CBS) in the cerebellum of intact young O. masou showed the expression of the marker mainly in type 1 cells, corresponding to NSCs/NCPs for other molecular markers. In the post-traumatic period, the number of CBS+ cells sharply increased, which indicates the involvement of H2S in the post-traumatic response. Induction of CBS in type 3 cells indicates the involvement of H2S in the metabolism of extracellular glutamate in the cerebellum, a decrease in the production of reactive oxygen species, and also arrest of the oxidative stress development, a weakening of the toxic effects of glutamate, and a reduction in excitotoxicity. The obtained results allow us to consider H2S as a biologically active substance, the numerous known effects of which can be supplemented by participation in the processes of constitutive neurogenesis and neuronal regeneration.
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Biller JD, Takahashi LS, Urbinati EC. Under stress conditions, pacu Piaractus mesopotamicus modulates the metabolic allostatic load even after Dolops carvalhoi challenge to maintain self-protection mechanisms. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:1309-1321. [PMID: 32236770 DOI: 10.1007/s10695-020-00789-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 03/05/2020] [Indexed: 06/11/2023]
Abstract
Fish metabolic allostatic dynamics, when animal present physiological modifications that can be strategies to survive, are important for promoting changes to ensure whole body self-protection and survival in chronic states of stress. To determine the impact of sequential stressors on pacu (Piaractus mesopotamicus), fish were subjected to two trials of stressful treatments, administration of exogenous dietary cortisol, and parasite challenge. The first experiment consisted of a two-day acute stress trial and the second, an eight-day chronic stress trial, and after both experiments, fish parasite susceptibility was assessed with the ectoparasite Dolops carvalhoi challenge. Physiological changes in response to acute trial were observed in glycogen, cortisol, glucose, osmolarity, sodium, calcium, chloride, potassium, hematocrit, hemoglobin, red blood cells and mean corpuscular volume, and white blood cell (P < 0.05), whereas response to chronic trial were observed in glycogen, osmolarity, potassium, calcium, chloride, mean corpuscular volume, white blood cell, neutrophil, and lymphocyte (P < 0.05). Acute trials caused physiological changes, however those changes did not induce the consumption of hepatic glycogen. Chronic stress caused physiological changes that induced hepatic glycogen consumption. Under acute trial, stress experience was important to fish to achieve homeostasis after chronic stress. Changes were important to modulate the response to stressor, improve body health status, and overcome the extra stressor with D. carvalhoi challenge. The experiments demonstrate that pacu initiate strategic self-protective metabolic dynamics in acute states of stress that ensure the maintenance of important life processes in front of sequential stressors.
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Affiliation(s)
- Jaqueline Dalbello Biller
- College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Rod. Cmte João Ribeiro de Barros, Km 651, Dracena, SP, CEP 17900-000, Brazil.
| | - Leonardo Susumu Takahashi
- College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Rod. Cmte João Ribeiro de Barros, Km 651, Dracena, SP, CEP 17900-000, Brazil
| | - Elisabeth Criscuolo Urbinati
- Aquaculture Center of UNESP, São Paulo State University (UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n, Jaboticabal, SP, CEP 14884-900, Brazil
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Mattioli CC, Takata R, de Oliveira Paes Leme F, Costa DC, Luz RK. Physiological and metabolic responses of juvenile Lophiosilurus alexandri catfish to air exposure. FISH PHYSIOLOGY AND BIOCHEMISTRY 2019; 45:455-467. [PMID: 30368686 DOI: 10.1007/s10695-018-0576-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 10/02/2018] [Indexed: 06/08/2023]
Abstract
The present study aimed to evaluate the physiological and metabolic stress responses of juvenile Lophiosilurus alexandri submitted to an air exposure test. The subjects consisted of 72 juveniles. Blood samples were taken at: 0 h-fish not exposed to air; 0.5 h-fish shortly after exposure to air for 30 min (prior to returning to the tank); 1.5 h (90 min), 24, 48, and 96 h after the initiation of exposure to air for 30 min. After 96 h, survivorship was 100%. Cortisol and glucose levels were higher at 0.5 h, returning to baseline at 48 and 24 h, respectively. Lactate dehydrogenase levels were highest at 1.5 h after exposure to air, returning to normal values in 24 h. Several changes were recorded in gasometric blood values and electrolytes. With regard to hematology and blood chemistry, exposure to air did not affect globular volume and AST throughout the 96 h of the experiment. The values for alkaline phosphatase were highest at 0, 1.5, and 24 h. Total protein was similar between 0 and 1.5 h and lowest at 96 h, while ALT was highest at 0.5 h. Leukocytes were highest at 0.5, 1.5, 48, and 96 h, while erythrocytes were highest at 96 h. After 96 h, juvenile L. alexandri were able to reestablish the main indicators of stress (cortisol, glucose and lactate dehydrogenase), while other indicators (hematological, biochemical, and gasometric) exhibited compensatory variation for normal physiological re-establishment.
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Affiliation(s)
- Cristiano Campos Mattioli
- Escola de Veterinária, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, n° 6627, Belo Horizonte, CEP 30161-970, Brazil
| | - Rodrigo Takata
- Unidade de Pesquisa e Reprodução de Peixes, Fundação Instituto de Pesca do Estado do Rio de Janeiro, Av. Presidente Vargas, 197, Parque de Exposições, Niterói, CEP 28540-000, Brazil
| | - Fabiola de Oliveira Paes Leme
- Escola de Veterinária, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, n° 6627, Belo Horizonte, CEP 30161-970, Brazil
| | - Deliane Cristina Costa
- Escola de Veterinária, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, n° 6627, Belo Horizonte, CEP 30161-970, Brazil
| | - Ronald Kennedy Luz
- Escola de Veterinária, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, n° 6627, Belo Horizonte, CEP 30161-970, Brazil.
- Laboratório de Aquacultura da Escola de Veterinária da Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, MG, Cep 31270-901, Brazil.
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Higuchi Y, Soga T, Parhar IS. Social Defeat Stress Decreases mRNA for Monoamine Oxidase A and Increases 5-HT Turnover in the Brain of Male Nile Tilapia ( Oreochromis niloticus). Front Pharmacol 2019; 9:1549. [PMID: 30687104 PMCID: PMC6333864 DOI: 10.3389/fphar.2018.01549] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 12/19/2018] [Indexed: 01/03/2023] Open
Abstract
Stress induces various neurobiological responses and causes psychiatric disorders, including depression. Monoamine oxidase A (MAO-A) plays an important role in various functions of the brain, such as regulation of mood, anxiety and aggression, and dysregulation of MAO-A is observed in stress-related psychiatric disorders. This study addressed the question whether acute social stress induces changes to transcriptional and/or post-transcriptional regulation of MAO-A expression in the brain. Using male Nile tilapia (Oreochromis niloticus), we investigated whether acute social stress, induced by the presence of a dominant male fish, changes the expression of MAO-A. We measured gene expression of MAO-A by quantitative PCR, enzymatic activity of MAO-A by the luminescent method, and 5-HT and 5-HIAA levels by liquid chromatography–mass spectrometry in the brain of socially stressed and control fish. Socially stressed males showed decreased MAO-A mRNA levels, consistent MAO-A enzymatic activity, increased 5-HT turnover in the brain, and elevated plasma cortisol levels, compared to controls. Our results suggest that acute social stress suppresses the transcription of MAO-A gene, enhances 5-HT metabolism but does not affect the production of MAO-A protein.
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Affiliation(s)
- Yuki Higuchi
- Brain Research Institute, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia
| | - Tomoko Soga
- Brain Research Institute, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia
| | - Ishwar S Parhar
- Brain Research Institute, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia
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