High stocking density and food deprivation increase brain monoaminergic activity in gilthead sea bream (Sparus aurata)
| Autor: | Arleta K. Skrzynska, Marcos A. López-Patiño, Jesús M. Míguez, Juan Antonio Martos-Sitcha, Fatemeh Naderi, Juan Miguel Mancera |
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| Přispěvatelé: | Ministerio de Economía y Competitividad (España), Xunta de Galicia, Ministerio de Ciencia e Innovación (España), Biología |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
medicine.medical_specialty
endocrine system animal structures Veterinary medicine brain monoamines Biology cortisol Serotonergic 03 medical and health sciences stress Dopamine Internal medicine Monoaminergic SF600-1100 medicine Chronic stress 3105 Peces y Fauna Silvestre 030304 developmental biology 0303 health sciences teleost General Veterinary Cerebrum 5-Hydroxyindoleacetic acid Dopaminergic 3207.16 Stress 04 agricultural and veterinary sciences 2401.13 Fisiología Animal serotonin welfare Endocrinology medicine.anatomical_structure QL1-991 nervous system Hypothalamus 040102 fisheries 0401 agriculture forestry and fisheries Animal Science and Zoology dopamine Zoology medicine.drug |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Animals 2021, 11(6), 1503 RODIN. Repositorio de Objetos de Docencia e Investigación de la Universidad de Cádiz Animals Volume 11 Issue 6 Animals, Vol 11, Iss 1503, p 1503 (2021) Investigo. Repositorio Institucional de la Universidade de Vigo Universidade de Vigo (UVigo) |
| ISSN: | 2010-2224 |
| Popis: | Trabajo presentado en el 11º Congreso de la Asociación Ibérica de Endocrinología Comparada (AIEC), celebrado en Vigo (España), del 13 al 15 de julio de 2017 This study evaluated the influence of high stocking density (HSD) and/or food deprivation (FD) on brain monoamines in gilthead sea bream (Sparus aurata). Fish were assigned to one of the following treatments: i) fed at low stocking density (LSD-F; 5 kg·m-3); ii) fed at high stocking density (HSD-F, 40 kg·m-3); iii) food-deprived at LSD (LSD-FD); and iv) food-deprived at HSD (HSD-FD). After 21 days, samples from plasma and brain regions (hypothalamus, optic tectum, telencephalon) were collected. The levels of dopamine (DA), serotonin (5HT), and their respective metabolites 3,4-dihydroxyphenylacetic acid (DOPAC) and 5- hydroxyindoleacetic acid (5HIAA) were quantified in brain tissues by HPLC. The ratios of DOPAC/DA and 5HIAA/5HT were used as index of the monoaminergic activity. Plasma cortisol and catecholamines levels were also assessed. Fish exposed to HSD and normally fed enhanced plasma cortisol levels, which clearly increased due to FD at both stocking densities. Monoaminergic activity in brain was increased after both stress situations. We conclude that chronic stress induced by HSD and FD in S. aurata stimulates the activity of the brain monoaminergic systems, which could have a role in maintaining the stress endocrine response. s Supported by funds from MICINN (AGL2010-22247-C03- 03) and Xunta de Galicia (CN 2012/004), AGL2013-48835-C2-R and AGL2016- 76069-C2-1-R (Ministerio de Economía y Competitividad, MINECO). M.L-P. was recipient of a predoctoral fellowship from the Ministerio de Ciencia e Innovación (Program FPI). J.A.M.-S. is supported by a Postdoctoral Research Fellowship (Juan de la Cierva-Formación, Reference FJCI-2014-20161) from MINECO |
| Databáze: | OpenAIRE |
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