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Matias AC, Viegas AR, Couto A, Lourenço-Marques C, Aragão C, Castanho S, Gamboa M, Candeias-Mendes A, Soares F, Modesto T, Pousão-Ferreira P, Ribeiro L. Effect of dietary l-glutamine supplementation on the intestinal physiology and growth during Solea senegalensis larval development. Comp Biochem Physiol B Biochem Mol Biol 2024; 272:110961. [PMID: 38387740 DOI: 10.1016/j.cbpb.2024.110961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 02/19/2024] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
The maturation of the intestinal digestive and absorptive functions might limit the amount of absorbed nutrients to fulfil the high requirements of the fast-growing marine fish larva. Glutamine (Gln) has been described to improve intestinal epithelium functions, due to its involvement in energy metabolism and protein synthesis. The purpose of this study was to evaluate dietary 0.2% Gln supplementation on aspects of intestinal physiology, protein metabolism and growth-related genes expression in Senegalese sole larvae. Experiment was carried out between 12 and 33 days post hatching (DPH) and fish were divided into two experimental groups, one fed Artemia spp. (CTRL) and the other fed Artemia spp. supplemented with Gln (GLN). GLN diet had two times more Gln than the CTRL diet. Samples were collected at 15, 19, 26 and 33 DPH for biometry, histology, and digestive enzymes activity, and at 33 DPH for gene expression, protein metabolism and AA content determination. Growth was significantly higher for Senegalese sole fed GLN diet, supported by differences on protein metabolism and growth-related gene expression. Slight differences were observed between treatments regarding the intestinal physiology. Overall, GLN diet seems to be directed to enhance protein metabolism leading to higher larval growth.
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Affiliation(s)
- Ana Catarina Matias
- IPMA - Portuguese Institute for the Sea and Atmosphere, EPPO - Aquaculture Research Station, Av. Parque Natural da Ria Formosa, s/n, 8700-194 Olhão, Portugal.
| | - Ana Rita Viegas
- IPMA - Portuguese Institute for the Sea and Atmosphere, EPPO - Aquaculture Research Station, Av. Parque Natural da Ria Formosa, s/n, 8700-194 Olhão, Portugal
| | - Ana Couto
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - Cátia Lourenço-Marques
- IPMA - Portuguese Institute for the Sea and Atmosphere, EPPO - Aquaculture Research Station, Av. Parque Natural da Ria Formosa, s/n, 8700-194 Olhão, Portugal
| | - Cláudia Aragão
- CCMAR - Centre of Marine Sciences, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - Sara Castanho
- IPMA - Portuguese Institute for the Sea and Atmosphere, EPPO - Aquaculture Research Station, Av. Parque Natural da Ria Formosa, s/n, 8700-194 Olhão, Portugal
| | - Margarida Gamboa
- IPMA - Portuguese Institute for the Sea and Atmosphere, EPPO - Aquaculture Research Station, Av. Parque Natural da Ria Formosa, s/n, 8700-194 Olhão, Portugal
| | - Ana Candeias-Mendes
- IPMA - Portuguese Institute for the Sea and Atmosphere, EPPO - Aquaculture Research Station, Av. Parque Natural da Ria Formosa, s/n, 8700-194 Olhão, Portugal
| | - Florbela Soares
- IPMA - Portuguese Institute for the Sea and Atmosphere, EPPO - Aquaculture Research Station, Av. Parque Natural da Ria Formosa, s/n, 8700-194 Olhão, Portugal
| | - Teresa Modesto
- CCMAR - Centre of Marine Sciences, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - Pedro Pousão-Ferreira
- IPMA - Portuguese Institute for the Sea and Atmosphere, EPPO - Aquaculture Research Station, Av. Parque Natural da Ria Formosa, s/n, 8700-194 Olhão, Portugal
| | - Laura Ribeiro
- IPMA - Portuguese Institute for the Sea and Atmosphere, EPPO - Aquaculture Research Station, Av. Parque Natural da Ria Formosa, s/n, 8700-194 Olhão, Portugal
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Peixoto D, Carvalho I, Machado M, Aragão C, Costas B, Azeredo R. Dietary tryptophan intervention counteracts stress-induced transcriptional changes in a teleost fish HPI axis during inflammation. Sci Rep 2024; 14:7354. [PMID: 38548769 PMCID: PMC10978975 DOI: 10.1038/s41598-024-57761-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 03/21/2024] [Indexed: 04/01/2024] Open
Abstract
Immune nutrition is currently used to enhance fish health by incorporating functional ingredients into aquafeeds. This study aimed to investigate the connections between tryptophan nutrition and the network that regulates the communication pathways between neuroendocrine and immune systems in European seabass (Dicentrarchus labrax). When tryptophan was supplemented in the diet of unstressed fish, it induced changes in the hypothalamic-pituitary-interrenal axis response to stress. Tryptophan-mediated effects were observed in the expression of anti-inflammatory cytokines and glucocorticoid receptors. Tryptophan supplementation decreased pro-opiomelanocortin b-like levels, that are related with adrenocorticotropic hormone and cortisol secretion. When stressed fish fed a tryptophan-supplemented diet were subjected to an inflammatory stimulus, plasma cortisol levels decreased and the expression of genes involved in the neuroendocrine response was altered. Modulatory effects of tryptophan dietary intervention on molecular patterns seem to be mediated by altered patterns in serotonergic activity.
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Affiliation(s)
- Diogo Peixoto
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
- Departamento de Biología Facultad de Ciencias del Mar y Ambientales, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEIMAR), Universidad de Cádiz, Puerto Real, Spain
| | - Inês Carvalho
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Marina Machado
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Cláudia Aragão
- Centro de Ciências do Mar (CCMAR), Faro, Portugal
- Universidade do Algarve, Faro, Portugal
| | - Benjamín Costas
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
| | - Rita Azeredo
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
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Aragão C, Teodósio R, Colen R, Richard N, Rønnestad I, Dias J, Conceição LEC, Ribeiro L. Taurine Supplementation to Plant-Based Diets Improves Lipid Metabolism in Senegalese Sole. Animals (Basel) 2023; 13:ani13091501. [PMID: 37174538 PMCID: PMC10177204 DOI: 10.3390/ani13091501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/14/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
Taurine is a sulphur-containing amino acid with important physiological roles and a key compound for the synthesis of bile salts, which are essential for the emulsion and absorption of dietary lipids. This study aimed to evaluate the effects of taurine supplementation to low-fishmeal diets on the metabolism of taurine, bile acids, and lipids of Senegalese sole. A fishmeal (FM) and a plant-protein-based (PP0) diet were formulated, and the latter was supplemented with taurine at 0.5 and 1.5% (diets PP0.5 and PP1.5). Diets were assigned to triplicate tanks containing 35 fish (initial weight ~14 g) for 6 weeks. Fish from the PP0 treatment presented lower taurine and bile-acid concentrations compared with the FM treatment, and a downregulation of cyp7a1 and abcb11 was observed. Triolein catabolism decreased in PP0-fed fish, resulting in increased hepatic fat content and plasma triglycerides, while no effects on plasma cholesterol were observed. Taurine supplementation to plant-based diets resulted in a higher taurine accumulation in fish tissues, increased bile-acid concentration, and upregulation of cyp7a1 and abcb11. Hepatic fat content and plasma triglycerides decreased with increasing dietary taurine supplementation. Taurine supplementation mitigated part of the negative effects of plant-based diets, leading to better lipid utilisation.
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Affiliation(s)
- Cláudia Aragão
- Centre of Marine Sciences (CCMAR), 8005-139 Faro, Portugal
- Universidade do Algarve, 8005-139 Faro, Portugal
| | - Rita Teodósio
- Centre of Marine Sciences (CCMAR), 8005-139 Faro, Portugal
| | - Rita Colen
- Centre of Marine Sciences (CCMAR), 8005-139 Faro, Portugal
| | - Nadège Richard
- Centre of Marine Sciences (CCMAR), 8005-139 Faro, Portugal
- Phileo by Lesaffre, 59700 Marcq-en-Baroeul, France
| | - Ivar Rønnestad
- Department of Biological Sciences, University of Bergen, 5020 Bergen, Norway
| | | | | | - Laura Ribeiro
- IPMA-Portuguese Institute for the Ocean and Atmosphere/EPPO-Aquaculture Research Station, 8700-194 Olhão, Portugal
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Saavedra M, Pereira TG, Barata M, Aragão C, Requeijo B, Conceição LEC, Pousão-Ferreira P. Plant-based diets fed to juvenile meagre Argyrosomus regius with low methionine and taurine supplementation led to an overall reduction in fish performance and to an increase in muscle fibre recruitment. J Fish Biol 2022; 101:1182-1188. [PMID: 36059137 DOI: 10.1111/jfb.15188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Methionine and taurine are amino acids (AA) that are usually deficient when fish meal is replaced by plant proteins. In this study, three diets were tested in juvenile meagre (initial weight: 13.4 g) for 8 weeks. The D1 diet had 0.2% methionine and 1% taurine supplementation; the D2 and D3 diets had 0.6% methionine and 1% and 2% taurine supplementation, respectively. The results showed that meagre fed the D1 diet had lower specific growth rate (2.2 to 2.5), lower feed efficiency (0.9 to 1.2) and higher food conversion rate (FCR, 1.1 to 0.8) as well as a lower activity of the alanine aminotransferase (ALAT) enzyme. Furthermore, a higher recruitment of muscle fibres (46% compared to 36%) as well as a higher fibre density was observed (1019 compared to 870 fibres mm-2 ). This study shows that meagre requires a sufficient quantity of methionine in plant-based diets to avoid a reduction in fish performance. Furthermore, taurine supplementation in the D1 diet was not able to mitigate the effects of methionine deficiency. A higher taurine supplementation did not improve meagre performance.
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Affiliation(s)
- Margarida Saavedra
- Department of Sea and Marine Resources, Division of Aquaculture and Upgrading, Portuguese Institute for the Sea and Atmosphere, I.P (IPMA), Lisbon, Portugal
| | - Teresa G Pereira
- Department of Sea and Marine Resources, Division of Aquaculture and Upgrading, Portuguese Institute for the Sea and Atmosphere, I.P (IPMA), Lisbon, Portugal
| | - Marisa Barata
- Aquaculture Research Station of IPMA, Olhão, Portugal
| | - Cláudia Aragão
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Faro, Portugal
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Machado M, Peixoto D, Santos P, Ricardo A, Duarte I, Carvalho I, Aragão C, Azeredo R, Costas B. Tryptophan Modulatory Role in European Seabass (Dicentrarchus labrax) Immune Response to Acute Inflammation under Stressful Conditions. Int J Mol Sci 2022; 23:ijms232012475. [PMID: 36293344 PMCID: PMC9604478 DOI: 10.3390/ijms232012475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/30/2022] [Accepted: 10/09/2022] [Indexed: 11/24/2022] Open
Abstract
The present work aimed to study the role of dietary tryptophan supplementation in modulating the European seabass (Dicentrarchus labrax) immune condition during stressful rearing conditions (i.e., 15 days exposure to high density), as well as the immune response to acute inflammation after intraperitoneal injection of a bacterial pathogen. Stress alone did not compromise seabass health indicators. In contrast, a clear peripheral and local inflammatory response was observed in response to the inoculated bacteria. Moreover, exposure to a high stocking density seemed to exacerbate the inflammatory response at early sampling points, compared to fish stocked at a lower density. In contrast, stressed fish presented some immune-suppressing effects on the T-cell surface glycoprotein receptor expressions at a late sampling point following inflammation. Regarding the effects of dietary tryptophan, no changes were observed on seabass immune indicators prior to inflammation, while a small number of immunosuppressive effects were observed in response to inflammation, supporting tryptophan’s role in the promotion of immune-tolerance signals during inflammation. Nonetheless, tryptophan dietary supplementation improved the inflammatory response against a bacterial pathogen during stressful conditions, supported by a reduction of plasma cortisol levels, an up-regulation of several immune-related genes at 48 h, and an inversion of the previously observed, stress-induced T-cell suppression. Finally, the involvement of tryptophan catabolism in macrophages was confirmed by the up-regulation of genes involved in the kynurenine pathway. The present study brings new insights regarding the immune modulatory role of tryptophan during stressful conditions in fish, thus allowing for the development of novel prophylactic protocols during vaccination by intraperitoneal injection in the European seabass.
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Affiliation(s)
- Marina Machado
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), 4450-208 Matosinhos, Portugal
- Correspondence: ; Tel.: +351-223401800
| | - Diogo Peixoto
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), 4450-208 Matosinhos, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, 4200-135 Porto, Portugal
- Instituto Universitario de Investigación Marina (INMAR), Universidad de Cádiz, 11003 Cádiz, Spain
| | - Paulo Santos
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), 4450-208 Matosinhos, Portugal
| | - Ana Ricardo
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), 4450-208 Matosinhos, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, 4200-135 Porto, Portugal
| | - Inês Duarte
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), 4450-208 Matosinhos, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, 4200-135 Porto, Portugal
| | - Inês Carvalho
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), 4450-208 Matosinhos, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, 4200-135 Porto, Portugal
| | - Cláudia Aragão
- Centro de Ciências do Mar (CCMAR), 8005-139 Faro, Portugal
- Campus de Gambelas, Universidade do Algarve, 8005-139 Faro, Portugal
| | - Rita Azeredo
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), 4450-208 Matosinhos, Portugal
| | - Benjamín Costas
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), 4450-208 Matosinhos, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, 4200-135 Porto, Portugal
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Aragão C, Gonçalves AT, Costas B, Azeredo R, Xavier MJ, Engrola S. Alternative Proteins for Fish Diets: Implications beyond Growth. Animals (Basel) 2022; 12:1211. [PMID: 35565636 PMCID: PMC9103129 DOI: 10.3390/ani12091211] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 12/12/2022] Open
Abstract
Aquaculture has been challenged to find alternative ingredients to develop innovative feed formulations that foster a sustainable future growth. Given the most recent trends in fish feed formulation on the use of alternative protein sources to decrease the dependency of fishmeal, it is fundamental to evaluate the implications of this new paradigm for fish health and welfare. This work intends to comprehensively review the impacts of alternative and novel dietary protein sources on fish gut microbiota and health, stress and immune responses, disease resistance, and antioxidant capacity. The research results indicate that alternative protein sources, such as terrestrial plant proteins, rendered animal by-products, insect meals, micro- and macroalgae, and single cell proteins (e.g., yeasts), may negatively impact gut microbiota and health, thus affecting immune and stress responses. Nevertheless, some of the novel protein sources, such as insects and algae meals, have functional properties and may exert an immunostimulatory activity. Further research on the effects of novel protein sources, beyond growth, is clearly needed. The information gathered here is of utmost importance, in order to develop innovative diets that guarantee the production of healthy fish with high quality standards and optimised welfare conditions, thus contributing to a sustainable growth of the aquaculture industry.
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Affiliation(s)
- Cláudia Aragão
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, 8005-139 Faro, Portugal; (M.J.X.); (S.E.)
| | - Ana Teresa Gonçalves
- GreenCoLab—Associação Oceano Verde, Universidade do Algarve, 8005-139 Faro, Portugal;
- SPAROS Lda, 8700-221 Olhão, Portugal
| | - Benjamín Costas
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), 4450-208 Matosinhos, Portugal; (B.C.); (R.A.)
- School of Medicine and Biomedical Sciences (ICBAS-UP), Universidade do Porto, 4050-313 Porto, Portugal
| | - Rita Azeredo
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), 4450-208 Matosinhos, Portugal; (B.C.); (R.A.)
| | - Maria João Xavier
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, 8005-139 Faro, Portugal; (M.J.X.); (S.E.)
| | - Sofia Engrola
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, 8005-139 Faro, Portugal; (M.J.X.); (S.E.)
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Barroso N, Galbiati L, Aragão C, Fernández M, Avila M, Seguro L, Marcondes-Braga F, Mangini S, Campos I, de Oliveira Júnior J, Furquim S, Pieri R, Gaiotto F, Bacal F. Vaccine-Induced Coronay Antibodie-Mediated Rejection and Thrombosis in a Heart Transplant Pacient: A Case Report. J Heart Lung Transplant 2022. [PMCID: PMC8988598 DOI: 10.1016/j.healun.2022.01.1697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Introduction Case Report Summary
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Saraiva JL, Nogueirinha M, Teodósio R, Aragão C, Engrola S, Arechavala-Lopez P. The effect of tank cover on welfare of farmed Nile tilapia. Appl Anim Behav Sci 2021. [DOI: 10.1016/j.applanim.2021.105396] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Dantas RT, Lira M, Belfort D, Aragão C, Murad C, Ávila M, Seguro L, Mangini S, Campos I, Marcondes‐Braga F, Bacal F. Venous Thromboembolism as an Initial Manifestation of COVID-19 in a Heart Transplant Patient. J Heart Lung Transplant 2021. [PMCID: PMC7979415 DOI: 10.1016/j.healun.2021.01.1304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Introduction The disease caused by the coronavirus 2019 (COVID-19) is mainly characterized by symptoms related to the upper respiratory tract associated with fever and constitutional symptoms, progressing in the most severe cases to pneumonia and severe acute respiratory syndrome (SARS). However, due to the increasing number of cases, atypical presentations have been found. Among them, thromboembolic manifestations stand out, since the virus itself seems to predispose to changes in the coagulation system. Case Report A 62-year-old male patient who underwent cardiac transplantation 6 months ago, secondary to chagasic cardiomyopathy, had pain and edema in his left foot for 1 week. Upon admission, he was eupneic, afebrile, heart rate of 96bpm, blood pressure of 120 × 70mmhg, with edema and erythema on his left foot. Chagas reactivation, cellulite or deep vein thrombosis were the diagnostic hypotheses suggested. Soft tissue ultrasound and venous doppler of the left lower limb were compatible with deep venous thrombosis and superficial thrombophlebitis. Skin lesion biopsy confirmed Chagas reactivation. Antibiotic therapy with cefazolin, full anticoagulation with enoxaparin and treatment with benzonidazole were introduced. In the second day of hospitalization, patient presented myalgia and dry cough, in addition to an increased C-reactive protein and multiple ground-glass opacities on computed tomography of the chest, suggestive of COVID-19. This finding was corroborated by a positive result of RT-PCR for SARS-COV2. The patient evolved with SARS, requiring progressive use of vasoactive drugs, mechanical ventilation and pronation. Summary It is currently known that COVID-19 increases the risk of thromboembolic events, especially in hospitalized patients, reaching an incidence of 25%, even in the presence of effective prophylaxis. Several mechanisms have been proposed for this association, but not with robust evidence. Despite these increased cases, there are no reports in the literature of initial presentation with a thromboembolic event in a heart transplant patient, emphasizing the importance of clinical suspicion and appropriate investigation.
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Figueiredo F, Aragão C, Pinto W, Dinis MT, Oliveira CC. Optimizing rearing and welfare in Senegalese sole (Solea senegalesensis) broodstock: Effect of ambient light intensity and handling time on stress response. Appl Anim Behav Sci 2020. [DOI: 10.1016/j.applanim.2019.104880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Boaviagem A, Melo Junior E, Lubambo L, Sousa P, Aragão C, Albuquerque S, Lemos A. The effectiveness of breathing patterns to control maternal anxiety during the first period of labor: A randomized controlled clinical trial. Complement Ther Clin Pract 2016; 26:30-35. [PMID: 28107846 DOI: 10.1016/j.ctcp.2016.11.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 10/25/2016] [Accepted: 11/10/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Assess the efficacy of the breathing patterns during the active phase of the first stage of labor for maternal anxiety. DESING Randomised trial with two treatment arms and intention-to-treat analysis. PARTICIPANTS One Hundred and forty patient in active labour, age between 12 and 40 years old and gestational age between 37 and 41 weeks. The breathing patterns waere made depending on the dilation phase and intensity of contraction, while the control group received routine care service. RESULTS There was no difference between groups two hours after the first evaluation regarding to anxiety (MD 0.3 CI95% -4.2 to 4.8), pain (MD 0.0 CI95% -0.8 to 0.7), fatigue (MD -0.5 CI95% -1.4 to 2.5) and maternal satisfaction (MD 0.9 CI95% -0.1 to 2.0). CONCLUSIONS The study results showed that the use of breathing patterns during the first period of labour were not effective to control anxiety, pain, fatigue and maternal satisfaction.
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Affiliation(s)
- A Boaviagem
- Universidade Federal de Pernambuco (UFPE), Physical Therapy Department, Brazil.
| | - E Melo Junior
- Universidade Federal de Pernambuco (UFPE), Maternal and Child Department, Brazil.
| | - L Lubambo
- Universidade Federal de Pernambuco (UFPE), Physical Therapy Department, Brazil.
| | - P Sousa
- Universidade Federal de Pernambuco (UFPE), Physical Therapy Department, Brazil.
| | - C Aragão
- Universidade Federal de Pernambuco (UFPE), Physical Therapy Department, Brazil.
| | - S Albuquerque
- Universidade Federal de Pernambuco (UFPE), Physical Therapy Department, Brazil.
| | - A Lemos
- Universidade Federal de Pernambuco (UFPE), Physical Therapy Department, Brazil.
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12
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Azeredo R, Pérez-Sánchez J, Sitjà-Bobadilla A, Fouz B, Tort L, Aragão C, Oliva-Teles A, Costas B. European Sea Bass (Dicentrarchus labrax) Immune Status and Disease Resistance Are Impaired by Arginine Dietary Supplementation. PLoS One 2015; 10:e0139967. [PMID: 26447480 PMCID: PMC4598043 DOI: 10.1371/journal.pone.0139967] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 09/18/2015] [Indexed: 11/19/2022] Open
Abstract
Infectious diseases and fish feeds management are probably the major expenses in the aquaculture business. Hence, it is a priority to define sustainable strategies which simultaneously avoid therapeutic procedures and reinforce fish immunity. Currently, one preferred approach is the use of immunostimulants which can be supplemented to the fish diets. Arginine is a versatile amino acid with important mechanisms closely related to the immune response. Aiming at finding out how arginine affects the innate immune status or improve disease resistance of European seabass (Dicentrarchus labrax) against vibriosis, fish were fed two arginine-supplemented diets (1% and 2% arginine supplementation). A third diet meeting arginine requirement level for seabass served as control diet. Following 15 or 29 days of feeding, fish were sampled for blood, spleen and gut to assess cell-mediated immune parameters and immune-related gene expression. At the same time, fish from each dietary group were challenged against Vibrio anguillarum and survival was monitored. Cell-mediated immune parameters such as the extracellular superoxide and nitric oxide decreased in fish fed arginine-supplemented diets. Interleukins and immune-cell marker transcripts were down-regulated by the highest supplementation level. Disease resistance data were in accordance with a generally depressed immune status, with increased susceptibility to vibriosis in fish fed arginine supplemented diets. Altogether, these results suggest a general inhibitory effect of arginine on the immune defences and disease resistance of European seabass. Still, further research will certainly clarify arginine immunomodulation pathways thereby allowing the validation of its potential as a prophylactic strategy.
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Affiliation(s)
- Rita Azeredo
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Rua dos Bragas 289, 4050-123, Porto, Portugal
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto (FCUP), 4169-007, Porto, Portugal
| | - Jaume Pérez-Sánchez
- Nutrigenomics and Fish Growth Endocrinology Group, Institute of Aquaculture Torre de la Sal, IATS-CSIC, 12595 Ribera de Cabanes, Castellón, Spain
| | - Ariadna Sitjà-Bobadilla
- Fish Pathology Group, Institute of Aquaculture Torre de la Sal, IATS-CSIC, 12595 Ribera de Cabanes, Castellón, Spain
| | - Belén Fouz
- Department of Microbiology and Ecology, Faculty of Biology, University of Valencia, Dr Moliner 50, 46100 Burjassot, Valencia, Spain
| | - Lluis Tort
- Departament de Biologia Cel·lular, Fisiologia Animal i Immunologia, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Cláudia Aragão
- Centro de Ciências do Mar, Universidade do Algarve, Campus de Gambelas, edf. 7, 8005-139, Faro, Portugal
| | - Aires Oliva-Teles
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Rua dos Bragas 289, 4050-123, Porto, Portugal
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto (FCUP), 4169-007, Porto, Portugal
| | - Benjamín Costas
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Rua dos Bragas 289, 4050-123, Porto, Portugal
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Costas B, Aragão C, Dias J, Afonso A, Conceição LEC. Interactive effects of a high-quality protein diet and high stocking density on the stress response and some innate immune parameters of Senegalese sole Solea senegalensis. Fish Physiol Biochem 2013; 39:1141-1151. [PMID: 23341074 DOI: 10.1007/s10695-013-9770-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Accepted: 01/12/2013] [Indexed: 06/01/2023]
Abstract
Amino acids (AA) regulate key metabolic pathways, including some immune responses. Therefore, this study aimed to assess whether an increased availability of dietary AA can mitigate the expected increase in plasma cortisol and metabolites levels due to high stocking density and its subsequent immunosuppression. Senegalese sole (Solea senegalensis) were maintained at low stocking density (LSD; 3.5 kg m(-2)) or high stocking density (HSD; 12 kg m(-2)) for 18 days. Additionally, both treatments were fed a control or a high protein (HP) diet (LSD, LSD HP, HSD and HSD HP). The HP diet slightly increased the levels of digestible indispensable AA, together with tyrosine and cysteine. HSD was effective in inducing a chronic stress response after 18 days of treatment since fish held at HSD presented higher plasma cortisol, glucose and lactate levels. Moreover, this increase in stress indicators translated in a decrease in plasma lysozyme, alternative complement pathway (ACP) and peroxidase activities, suggesting some degree of immunosuppression. Interestingly, while plasma glucose and lactate levels in HSD HP specimens decreased to similar values than LSD fish, plasma lysozyme, ACP and peroxidase activities increased, with even higher values than LSD groups for ACP activity. It is suggested that the HP diet may be used as functional feed since it may represent a metabolic advantage during stressful events and may counteract immunosuppression in sole.
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Affiliation(s)
- Benjamín Costas
- CIIMAR-CIMAR LA, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas 289, 4050-123, Porto, Portugal,
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Martínez-Páramo S, Arfuso F, Engrola S, Dias J, Faggio C, Aragão C. Do immunostimulants affect sperm quality in Senegalese sole? Commun Agric Appl Biol Sci 2013; 78:265-268. [PMID: 25141686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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15
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Pinto W, Rønnestad I, Dinis MT, Aragão C. Taurine and Fish Development: Insights for the Aquaculture Industry. Advances in Experimental Medicine and Biology 2013; 776:329-34. [DOI: 10.1007/978-1-4614-6093-0_30] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Herrera M, Aragão C, Hachero I, Ruiz-Jarabo I, Vargas-Chacoff L, Mancera JM, Conceição LEC. Physiological short-term response to sudden salinity change in the Senegalese sole (Solea senegalensis). Fish Physiol Biochem 2012; 38:1741-1751. [PMID: 22678707 DOI: 10.1007/s10695-012-9671-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Accepted: 05/26/2012] [Indexed: 06/01/2023]
Abstract
The physiological responses of Senegalese sole to a sudden salinity change were investigated. The fish were first acclimated to an initial salinity of 37.5 ppt for 4 h. Then, one group was subjected to increased salinity (55 ppt) while another group was subjected to decreased salinity (5 ppt). The third group (control group) remained at 37.5 ppt. We measured the oxygen consumption rate, osmoregulatory (plasma osmolality, gill and kidney Na(+),K(+)-ATPase activities) and stress (plasma cortisol and metabolites) parameters 0.5 and 3 h after transfer. Oxygen consumption at both salinities was higher than for the control at both sampling times. Gill Na(+),K(+)-ATPase activity was significantly higher for the 55 ppt salinity at 0.5 h. Plasma osmolality decreased in the fish exposed to 5 ppt at the two sampling times but no changes were detected for high salinities. Plasma cortisol levels significantly increased at both salinities, although these values declined in the low-salinity group 3 h after transfer. Plasma glucose at 5 ppt salinity did not vary significantly at 0.5 h but decreased at 3 h, while lactate increased for both treatments at the first sampling time and returned to the control levels at 3 h. Overall, the physiological response of S. senegalensis was immediate and involved a rise in oxygen consumption and plasma cortisol values as well as greater metabolite mobilization at both salinities.
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Affiliation(s)
- Marcelino Herrera
- IFAPA Agua del Pino, Ctra. Cartaya-Punta Umbría, 21459, Cartaya, Huelva, Spain.
| | - Cláudia Aragão
- CCMAR, Universidade do Algarve (Campus de Gambelas), 8005-139, Faro, Portugal
| | - Ismael Hachero
- IFAPA Agua del Pino, Ctra. Cartaya-Punta Umbría, 21459, Cartaya, Huelva, Spain
| | - Ignacio Ruiz-Jarabo
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, 11510, Puerto Real, Spain
| | - Luis Vargas-Chacoff
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, 11510, Puerto Real, Spain
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Juan Miguel Mancera
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, 11510, Puerto Real, Spain
| | - Luis E C Conceição
- CCMAR, Universidade do Algarve (Campus de Gambelas), 8005-139, Faro, Portugal
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Conceição LEC, Aragão C, Dias J, Costas B, Terova G, Martins C, Tort L. Dietary nitrogen and fish welfare. Fish Physiol Biochem 2012; 38:119-41. [PMID: 22212981 DOI: 10.1007/s10695-011-9592-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Accepted: 12/16/2011] [Indexed: 05/12/2023]
Abstract
Little research has been done in optimizing the nitrogenous fraction of the fish diets in order to minimize welfare problems. The purpose of this review is to give an overview on how amino acid (AA) metabolism may be affected when fish are under stress and the possible effects on fish welfare when sub-optimal dietary nitrogen formulations are used to feed fish. In addition, it intends to evaluate the current possibilities, and future prospects, of using improved dietary nitrogen formulations to help fish coping with predictable stressful periods. Both metabolomic and genomic evidence show that stressful husbandry conditions affect AA metabolism in fish and may bring an increase in the requirement of indispensable AA. Supplementation in arginine and leucine, but also eventually in lysine, methionine, threonine and glutamine, may have an important role in enhancing the innate immune system. Tryptophan, as precursor for serotonin, modulates aggressive behaviour and feed intake in fish. Bioactive peptides may bring important advances in immunocompetence, disease control and other aspects of welfare of cultured fish. Fishmeal replacement may reduce immune competence, and the full nutritional potential of plant-protein ingredients is attained only after the removal or inactivation of some antinutritional factors. This review shows that AA metabolism is affected when fish are under stress, and this together with sub-optimal dietary nitrogen formulations may affect fish welfare. Furthermore, improved dietary nitrogen formulations may help fish coping with predictable stressful events.
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Affiliation(s)
- Luis E C Conceição
- CCMAR-CIMAR L.A., Centro de Ciências do Mar do Algarve, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal,
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18
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Costas B, Aragão C, Soengas JL, Míguez JM, Rema P, Dias J, Afonso A, Conceição LE. Effects of dietary amino acids and repeated handling on stress response and brain monoaminergic neurotransmitters in Senegalese sole (Solea senegalensis) juveniles. Comp Biochem Physiol A Mol Integr Physiol 2012; 161:18-26. [DOI: 10.1016/j.cbpa.2011.08.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 08/22/2011] [Accepted: 08/23/2011] [Indexed: 12/19/2022]
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Costas B, Aragão C, Ruiz-Jarabo I, Vargas-Chacoff L, Arjona FJ, Mancera JM, Dinis MT, Conceição LEC. Different environmental temperatures affect amino acid metabolism in the eurytherm teleost Senegalese sole (Solea senegalensis Kaup, 1858) as indicated by changes in plasma metabolites. Amino Acids 2011; 43:327-35. [PMID: 21947601 DOI: 10.1007/s00726-011-1082-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Accepted: 09/08/2011] [Indexed: 11/24/2022]
Abstract
Senegalese sole (Solea senegalensis) is a eurytherm teleost that under natural conditions can be exposed to annual water temperature fluctuations between 12 and 26°C. This study assessed the effects of temperature on sole metabolic status, in particular in what concerns plasma free amino acid changes during thermal acclimation. Senegalese sole maintained at 18°C were acclimated to either cold (12°C) or warm (26°C) environmental temperatures for 21 days. Fish maintained at 18°C served as control. Plasma concentrations of cortisol, glucose, lactate, triglycerides, proteins, and free amino acids were assessed. Cold acclimation influenced interrenal responses of sole by increasing cortisol release. Moreover, plasma glucose and lactate concentrations increased linearly with temperature, presumably reflecting a higher metabolic activity of sole acclimated to 26°C. Acclimation temperature affected more drastically plasma concentrations of dispensable than that of indispensable amino acids, and different acclimation temperatures induced different responses. Asparagine, glutamine and ornithine seem to be of particular importance for ammonia detoxification mechanisms, synthesis of triglycerides that may be used during homeoviscous adaptation and, to a lesser extent, as energetic substrates in specimens acclimated to 12°C. When sole is acclimated to 26°C taurine, glutamate, GABA and glycine increased, which may suggest important roles as antioxidant defences, in osmoregulatory processes and/or for energetic purposes at this thermal regimen. In conclusion, acclimation to different environmental temperatures induces several metabolic changes in Senegalese sole, suggesting that amino acids may be important for thermal acclimation.
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Affiliation(s)
- Benjamín Costas
- CCMAR-CIMAR L.A., Centro de Ciências do Mar do Algarve, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal.
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Costas B, Aragão C, Ruiz-Jarabo I, Vargas-Chacoff L, Arjona FJ, Dinis MT, Mancera JM, Conceição LEC. Feed deprivation in Senegalese sole (Solea senegalensis Kaup, 1858) juveniles: effects on blood plasma metabolites and free amino acid levels. Fish Physiol Biochem 2011; 37:495-504. [PMID: 21107905 DOI: 10.1007/s10695-010-9451-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2009] [Accepted: 11/12/2010] [Indexed: 05/20/2023]
Abstract
The effects of prolonged feed deprivation were assessed on blood plasma metabolites and free amino acid levels in Solea senegalensis. Juvenile specimens were maintained at two experimental conditions (24 h fasted and 21 days feed-deprived). In feed-deprived fish, relative growth rate and hepatosomatic index as well as plasma triglycerides and proteins levels were significantly lower. However, plasma cortisol levels were higher in feed-deprived fish, while plasma glucose and lactate values were not significantly different between treatments. Furthermore, feed-deprived fish showed higher levels of total plasma free amino acids than 24 h fasted fish. In 21 days feed-deprived sole, an increase in plasma cortisol levels may suggest a functional role in mobilizing energy due to the catabolic action of this hormone in teleosts. Higher levels of glutamine, arginine and ornithine in 21 days feed-deprived fish may be indicative of a dual role for these amino acids: ammonia detoxification and carbon source for gluconeogenesis. The increased plasma glucogenic and branched-chain amino acid levels, together with the maintenance of plasma glucose in 21 days feed-deprived sole, suggest active liver gluconeogenic processes supported by tissue proteolysis.
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Affiliation(s)
- Benjamín Costas
- CIMAR/CCMAR-Centro de Ciências do Mar do Algarve, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal.
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21
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Pinto W, Rønnestad I, Jordal AEO, Gomes AS, Dinis MT, Aragão C. Cloning, tissue and ontogenetic expression of the taurine transporter in the flatfish Senegalese sole (Solea senegalensis). Amino Acids 2011; 42:1317-27. [PMID: 21210163 PMCID: PMC3296012 DOI: 10.1007/s00726-010-0826-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Accepted: 12/20/2010] [Indexed: 11/28/2022]
Abstract
Flatfish species seem to require dietary taurine for normal growth and development. Although dietary taurine supplementation has been recommended for flatfish, little is known about the mechanisms of taurine absorption in the digestive tract of flatfish throughout ontogeny. This study described the cloning and ontogenetic expression of the taurine transporter (TauT) in the flatfish Senegalese sole (Solea senegalensis). Results showed a high similarity between TauT in Senegalese sole and other vertebrates, but a change in TauT amino acid sequences indicates that taurine transport may differ between mammals and fish, reptiles or birds. Moreover, results showed that Senegalese sole metamorphosis is an important developmental trigger to promote taurine transport in larvae, especially in muscle tissues, which may be important for larval growth. Results also indicated that the capacity to uptake dietary taurine in the digestive tract is already established in larvae at the onset of metamorphosis. In Senegalese sole juveniles, TauT expression was highest in brain, heart and eye. These are organs where taurine is usually found in high concentrations and is believed to play important biological roles. In the digestive tract of juveniles, TauT was more expressed in stomach and hindgut, indicating that dietary taurine is quickly absorbed when digestion begins and taurine endogenously used for bile salt conjugation may be recycled at the posterior end of the digestive tract. Therefore, these results suggest an enterohepatic recycling pathway for taurine in Senegalese sole, a process that may be important for maintenance of the taurine body levels in flatfish species.
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Affiliation(s)
- Wilson Pinto
- CIMAR/CCMAR, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal.
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Conceição LEC, Aragão C, Richard N, Engrola S, Gavaia P, Mira S, Dias J. Novel methodologies in marine fish larval nutrition. Fish Physiol Biochem 2010; 36:1-16. [PMID: 20035382 DOI: 10.1007/s10695-009-9373-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2009] [Accepted: 12/10/2009] [Indexed: 05/28/2023]
Abstract
Major gaps in knowledge on fish larval nutritional requirements still remain. Small larval size, and difficulties in acceptance of inert microdiets, makes progress slow and cumbersome. This lack of knowledge in fish larval nutritional requirements is one of the causes of high mortalities and quality problems commonly observed in marine larviculture. In recent years, several novel methodologies have contributed to significant progress in fish larval nutrition. Others are emerging and are likely to bring further insight into larval nutritional physiology and requirements. This paper reviews a range of new tools and some examples of their present use, as well as potential future applications in the study of fish larvae nutrition. Tube-feeding and incorporation into Artemia of (14)C-amino acids and lipids allowed studying Artemia intake, digestion and absorption and utilisation of these nutrients. Diet selection by fish larvae has been studied with diets containing different natural stable isotope signatures or diets where different rare metal oxides were added. Mechanistic modelling has been used as a tool to integrate existing knowledge and reveal gaps, and also to better understand results obtained in tracer studies. Population genomics may assist in assessing genotype effects on nutritional requirements, by using progeny testing in fish reared in the same tanks, and also in identifying QTLs for larval stages. Functional genomics and proteomics enable the study of gene and protein expression under various dietary conditions, and thereby identify the metabolic pathways which are affected by a given nutrient. Promising results were obtained using the metabolic programming concept in early life to facilitate utilisation of certain nutrients at later stages. All together, these methodologies have made decisive contributions, and are expected to do even more in the near future, to build a knowledge basis for development of optimised diets and feeding regimes for different species of larval fish.
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Affiliation(s)
- Luis E C Conceição
- CCMAR-Centro de Ciências do Mar, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal.
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Aragão C, Costas B, Vargas-Chacoff L, Ruiz-Jarabo I, Dinis MT, Mancera JM, Conceição LEC. Changes in plasma amino acid levels in a euryhaline fish exposed to different environmental salinities. Amino Acids 2009; 38:311-7. [PMID: 19229587 DOI: 10.1007/s00726-009-0252-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2008] [Accepted: 01/27/2009] [Indexed: 11/27/2022]
Abstract
Previous studies have shown that Senegalese sole is partially euryhaline in the juvenile phase, being able to adapt to a wide range of salinities in a short-time period, due to changes at the osmoregulatory and metabolic level. This study aimed to assess the effects of acclimation of sole to a wide range of salinities, with a special emphasis on the role of plasma amino acids during this process. Sole juveniles were acclimated for 2 weeks to different salinities: 5, 15, 25, 38, and 55 g L(-1). Plasma levels of cortisol, glucose, osmolality, and free amino acids were assessed at the end. Changes in plasma levels of cortisol, glucose, and amino acids indicate that fish reared at 5 and 55 g L(-1) were facing extra energy costs. Amino acids seem to play an important role during salinity acclimation, either as energy sources or as important osmolytes for cell volume regulation.
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Affiliation(s)
- Cláudia Aragão
- CIMAR/CCMAR, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal.
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Pinto W, Figueira L, Dinis MT, Aragão C. How does fish metamorphosis affect aromatic amino acid metabolism? Amino Acids 2008; 36:177-83. [DOI: 10.1007/s00726-008-0045-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Accepted: 02/11/2008] [Indexed: 10/22/2022]
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Aragão C, Corte-Real J, Costas B, Dinis MT, Conceição LEC. Stress response and changes in amino acid requirements in Senegalese sole (Solea senegalensis Kaup 1858). Amino Acids 2007; 34:143-8. [PMID: 17578653 DOI: 10.1007/s00726-007-0495-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2006] [Accepted: 01/12/2007] [Indexed: 10/23/2022]
Abstract
Fish in aquaculture are often exposed to various stressors that may change their ability to survive or limit growth. Amino acids are used for processes other than growth, including stress response. This study intended to analyse how repeated acute handling stress can affect growth and amino acid requirements in fish. Senegalese sole juveniles were weekly held in the air during 3 min (Handling) for 9 weeks; Control groups were left undisturbed. Growth and plasma levels of stress indicators and of free amino acids were assessed at the end of the experiment. Plasma cortisol and osmolality levels showed that fish in the Handling treatment were stressed, but growth was unaffected. Plasma amino acid concentrations indicate that their requirements in stressed fish were altered, which probably reflects the synthesis of proteins or other specific compounds related to stress response.
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Affiliation(s)
- C Aragão
- CCMAR, Universidade do Algarve, Campus de Gambelas, Faro, Portugal.
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Rønnestad I, Conceição LE, Aragão C, Dinis MT. Assimilation and catabolism of dispensable and indispensable free amino acids in post-larval Senegal sole (Solea senegalensis). Comp Biochem Physiol C Toxicol Pharmacol 2001; 130:461-6. [PMID: 11738633 DOI: 10.1016/s1532-0456(01)00272-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The postprandial metabolism of dietary free amino acids (AA) was studied in post-larval Senegal sole, Solea senegalensis, aged 32 days after hatching (DAH). The diet was administered as a single pulse (36 nl, 43.1 mmol/l) using a micro tube-feeding technique and a dissolved mixture of crystalline AA. In four separate treatments the diet contained L [U-(14)C] tracer for two indispensable AA (IAA), lysine and arginine or two dispensable amino acids (DAA), glutamate and alanine. The post-larva absorbed all tested AA from the diet with similar efficiency (97.5%). A small fraction of the IAA was catabolised (11.5+/-1.1 and 15.1+/-3.3%, for lysine and arginine, respectively) and a high proportion was retained in the body (86.7+/-1.3 and 81.6+/-4.1%). For the DAA more were catabolised (64.9+/-5.3% and 41.4+/-7.2% for glutamate and alanine, respectively) and less were retained (32.9+/-5.1% and 56.3+/-7.2%). On this basis, it appears that post-larval Senegal sole use DAA in preference to IAA as energy substrates while the retention (assimilation efficiency) is better for the IAA. These results support other recent studies that early stages of fish have a better capacity to regulate AA catabolism than previously believed and that indispensable AA are saved for body growth.
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Affiliation(s)
- I Rønnestad
- Department of Zoology, University of Bergen, Allégt 41, N-5007 Bergen, Norway.
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Ronnestad I, Conceição LE, Aragão C, Dinis MT. Free amino acids are absorbed faster and assimilated more efficiently than protein in postlarval Senegal sole (Solea senegalensis). J Nutr 2000; 130:2809-12. [PMID: 11053525 DOI: 10.1093/jn/130.11.2809] [Citation(s) in RCA: 126] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To improve the formulation of diets for the early stages of marine fish, assimilation rates of free amino acids (FAA) and protein in postlarval Senegal sole (Solea senegalensis) were determined. Fish (2.45 +/- 0.87 mg dry weight) were tube fed 36 nL of a diet of FAA containing L-[(35)S] methionine (FAA diet) or bovine serum albumin, containing L-[methylated-(14)C]bovine serum albumin (Prot-diet), both at a concentration of 4.08 g/L. A time series was performed, and the amounts of label in incubation water, liver, gut and body carcass were quantified. The FAA diet was absorbed with a 3.5-times-higher transfer rate (P < 0.001) from the gut into the larval body tissues compared with the Prot-diet. The FAA diet also was assimilated with greater efficiency than the Prot-diet (80% versus 58%, P: = 0.001). If we assume that the label present in the gut represents amino acids incorporated into the intestinal tissue, the assimilation efficiencies for the two diets were 89 and 64%. Therefore, FAA seems to be superior to protein as a dietary source of amino acids in Senegal sole postlarvae. However, because the absorption dynamics of protein and FAA differ, care should be taken when using the sources together to avoid amino acid imbalance.
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Affiliation(s)
- I Ronnestad
- Department of Zoology, University of Bergen, N-5007 Bergen, Norway
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