The effects of intraperitoneal administration of Francisella noatunensis subsp. noatunensis on hepatic intermediary metabolism and indicators of stress in Patagonian blennie Eleginops maclovinus
Date
Authors
DANTAGNAN DANTAGNAN, HERMAN PATRICIO
Oyarzún-Salazar, Ricardo
Vargas-Lagos, Carolina
Martínez, Danixa Pamela
Muñoz, José L.P.
Dantagnan, Patricio P.
Vargas-Chacoff, Luis
Oyarzún-Salazar, Ricardo
Vargas-Lagos, Carolina
Martínez, Danixa Pamela
Muñoz, José L.P.
Dantagnan, Patricio P.
Vargas-Chacoff, Luis
Authors
Date
Datos de publicación:
10.1016/j.cbpb.2019.01.013
Keywords
Eleginops Maclovinus - Francisella Noatunensis - Intermediary Metabolism - Intraperitoneal Administration - Stress - Alanine Aminotransferase - Glucose - Glucose 6 Phosphate Dehydrogenase - Glutamate Dehydrogenase - Hydrocortisone - Lactate Dehydrogenase - Lactate Dehydrogenase A - Lactic Acid - Alanine Aminotransferase - Glucose - Glucose 6 Phosphate Dehydrogenase - Glutamate Dehydrogenase - Hydrocortisone - Lactate Dehydrogenase - Lactic Acid - Liver Enzyme - Triacylglycerol - Animal Experiment - Animal Model - Animal Tissue - Article - Cellular Stress Response - Controlled Study - Eleginops Maclovinus - Energy Transfer - Enzyme Activity - Fish - Fish Disease - Francisella - Francisella Noatunensis Subsp Noatunensis - Francisellosis - Glucose Blood Level - Lactate Blood Level - Liver Metabolism - Male - Metabolite - Nonhuman - Priority Journal - Stress - Triacylglycerol Blood Level - Animal - Gram Negative Infection - Intraperitoneal Drug Administration - Liver - Metabolism - Microbiology - Pathogenicity - Pathology - Perciformes - Physiological Stress - Animals - Fish Diseases - Gram-negative Bacterial Infections - Injections, Intraperitoneal - Liver - Stress, Physiological
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Abstract
Francisellosis is a disease produced by Francisella spp. which affects farmed fish. Eleginops maclovinus specimens can be caught close to salmon farming centers, feeding on un-consumed pellet, making the transmission of pathogens such as Francisella noatunensis possible. The aim of this study was to evaluate the effect of F. noatunensis on liver intermediary metabolism in E. maclovinus. 144 fish were injected intraperitoneally with F. noatunensis at a low dose LD (1 × 101 cells/?L), medium dose MD (1 × 105 cells/?L), high dose HD (1 × 1010 cells/?L), or with culture medium C (control), and sampled at 1, 3, 7, 14, 21 and 28 days post injection (dpi). No mortality was recorded during the experimental period, but there was a marked metabolic response in fish injected with high doses. Metabolites in plasma were lowest in the high bacterial dose. Cortisol levels were highest at day 7 in the high dose and then decreased from day 14 until the end of the study. Liver enzymes showed a similar pattern to plasma metabolites, with decreased enzymatic activity, mostly with the high bacteria dose. PK was the exception, with increased enzymatic activity in a dose-dependent manner over time. Liver metabolites were highly variable, except in the high bacterial dose where variability and total levels decreased significantly. Our results show that fish infection with F. noatunensis induces a clear stress response, especially with at the highest dose, shifting intermediary metabolism towards mobilization of energy and suggesting that E. maclovinus detects experimental infection of F. noatunensis as a stressor, which it is dependent on the bacterial dose. © 2020 Elsevier B.V., All rights reserved.
Description
Keywords
Eleginops Maclovinus , Francisella Noatunensis , Intermediary Metabolism , Intraperitoneal Administration , Stress , Alanine Aminotransferase , Glucose , Glucose 6 Phosphate Dehydrogenase , Glutamate Dehydrogenase , Hydrocortisone , Lactate Dehydrogenase , Lactate Dehydrogenase A , Lactic Acid , Alanine Aminotransferase , Glucose , Glucose 6 Phosphate Dehydrogenase , Glutamate Dehydrogenase , Hydrocortisone , Lactate Dehydrogenase , Lactic Acid , Liver Enzyme , Triacylglycerol , Animal Experiment , Animal Model , Animal Tissue , Article , Cellular Stress Response , Controlled Study , Eleginops Maclovinus , Energy Transfer , Enzyme Activity , Fish , Fish Disease , Francisella , Francisella Noatunensis Subsp Noatunensis , Francisellosis , Glucose Blood Level , Lactate Blood Level , Liver Metabolism , Male , Metabolite , Nonhuman , Priority Journal , Stress , Triacylglycerol Blood Level , Animal , Gram Negative Infection , Intraperitoneal Drug Administration , Liver , Metabolism , Microbiology , Pathogenicity , Pathology , Perciformes , Physiological Stress , Animals , Fish Diseases , Gram-negative Bacterial Infections , Injections, Intraperitoneal , Liver , Stress, Physiological
Citation
10.1016/j.cbpb.2019.01.013