Journal ArticleDOI
Carbohydrates in fish nutrition: effects on growth, glucose metabolism and hepatic enzymes
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TLDR
The focus then shifts to selected aspects of hormonal regulation of carbohydrate metabolism and dietary carbohydrates and their variable effects on glycogen and glucose turnover, and the correlation of dietary carbohydrates with fish health.Abstract:
The utilisation of dietary carbohydrates and their effects on fish metabolism are reviewed. Details on how dietary carbohydrates affect growth, feed utilisation and deposition of nutrients are discussed. Variations in plasma glucose concentrations emphasizing results from glucose tolerance tests, and the impact of adaptation diets are interpreted in the context of secondary carbohydrate metabolism. Our focus then shifts to selected aspects of hormonal regulation of carbohydrate metabolism and dietary carbohydrates and their variable effects on glycogen and glucose turnover. We analyse the interaction of carbohydrates with other nutrients, especially protein and protein sparing, and de novo synthesis of lipids, and finish by discussing the correlation of dietary carbohydrates with fish health.read more
Citations
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Effect of dietary starch source (normal versus waxy) and protein levels on the performance of white sea bream Diplodus sargus (Linnaeus) juveniles
TL;DR: The results of this study indicate that diets for white sea bream juveniles may include up to 42% starch without negative eiects on ¢sh performance, and normal starch appears to be more used as an energy source than waxy starch.
Today’s and tomorrow's feed ingredients in Norwegian aquaculture
Mette Sørensen,Gerd Marit Berge,Magny S. Thomassen,Bente Ruyter,Bjarne Hatlen,Trine Ytrestøyl,Turid Synnøve Aas,Torbjørn Åsgård +7 more
Journal ArticleDOI
Analysis of glucose metabolism in farmed European sea bass (Dicentrarchus labrax L.) using deuterated water
Ivan Viegas,Vera M. Mendes,Sara Leston,Ivana Jarak,Rui A. Carvalho,Miguel Ângelo Pardal,Bruno Manadas,John G. Jones +7 more
TL;DR: Glucose metabolism in free-swimming fasted and fed seabass was studied using deuterated water and gluconeogenesis accounted for 98±1% of the glucose that was produced during the 72-h (2)H(2)O administration period.
Journal ArticleDOI
Glycemic and insulin responses in white sea bream Diplodus sargus, after intraperitoneal administration of glucose.
Paula Enes,Helena Peres,Pedro Pousão-Ferreira,Joan Sanchez-Gurmaches,Isabel Navarro,Joaquim Gutiérrez,Aires Oliva-Teles +6 more
TL;DR: The results indicate that under these experimental conditions, glucose acts as an insulin secretagogue in white sea bream juveniles, and insulin may have contributed to restoring basal plasma glucose levels by enhancing glucose uptake in the liver.
Journal ArticleDOI
Effect of high dietary carbohydrate on growth, serum physiological response, and hepatic heat shock cognate protein 70 expression of the top-mouth culter Erythroculter ilishaeformis Bleeker
TL;DR: It is suggested that ingestion of 27 or 34 % dietary CHO can impact the nonspecific immune ability of E. ilishaeformis and also cause metabolic stress.
References
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Journal ArticleDOI
Cortisol in teleosts: dynamics, mechanisms of action, and metabolic regulation
TL;DR: This review attempts to delineate common themes on the physiological and metabolic roles of cortisol in teleost fishes and to suggest new approaches that might overcome some of the inconsistencies on the role of this multifaceted hormone.
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Stress responses and disease resistance in salmonid fish: Effects of chronic elevation of plasma cortisol
TL;DR: It is shown, by means of intraperitoneal implantation of cortisol, that chronic elevation of plasma cortisol levels in the brown trout results in a dose-dependent increase in mortality due to common bacterial and fungal diseases.
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What if Minkowski had been ageusic? An alternative angle on diabetes.
TL;DR: It is suggested that the phenomena of insulin resistance and hyperglycemia might be more readily understood if viewed in the context of underlying abnormalities of lipid metabolism.
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Pancreatic beta-cells are rendered glucose-competent by the insulinotropic hormone glucagon-like peptide-1(7-37)
TL;DR: It is reported here that GLP-1 confers glucose sensitivity to glucose-resistant p-cells, a phenomenon the authors term glucose competence, which is similar to membrane depolarization, the generation of action potentials, and Ca2+ influx, events that are known to trigger insulin secretion.
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Glucose-6-phosphate dehydrogenase: a "housekeeping" enzyme subject to tissue-specific regulation by hormones, nutrients, and oxidant stress.
TL;DR: The central question of this review is “How can the G6PDH gene be constitutively expressed in some tissues while displaying adaptive regulation in others when there exists a single transcription unit for the gene?”