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
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Posted ContentDOI
Trans-omics analyses revealed differences in hormonal and nutritional status between wild and cultured female Japanese eel (Anguilla japonica)
TL;DR: The data suggested that ovulation problem is due to prolonged intake of a high-carbohydrate diet and/or unbalanced DHA/EPA/ARA ratios in diet.
Journal ArticleDOI
Effects of glucose injection on biochemical parameters, insulin, and glycolytic enzymes in GIFT (Oreochromis niloticus): Effects of glucose injection on biochemical parameters, insulin, and glycolytic enzymes in GIFT (Oreochromis niloticus)
Farelos de algaroba (prosopis juliflora) em dietas para Tilápia-do-Nilo(Oreochromis niloticus)
TL;DR: In the performance tests, fish that are fed with diets containing FIVA showed a reduction in the productive indexes, which can be attributed to the compounds present in the fiber of the diets FM: FivA, i.e., phenols and tannins, and inefficiency is assumed in the use of dietary protein, due to increased activity of transaminases and deaminase in liver and muscle tissues.
Journal ArticleDOI
Molecular identification of glucose transporter 4: The responsiveness to starvation, glucose, insulin and glucagon on glucose transporter 4 in common carp (Cyprinus carpio L.).
Liping Yang,Shaoyang Zhi,Guokun Yang,Chaobin Qin,Xiao Yan,Ming-Ming Niu,Wenlei Zhang,Mingyu Liu,Mengjuan Zhao,Guoxing Nie +9 more
TL;DR: In this paper, a comparative study of GLUT4 in common carp was carried out, where the open reading frame of carp glut4 was 1518 bp in length, encoding 505 amino acids, and a high sequence homology was identified in carp and teleost.
Journal ArticleDOI
Molecular cloning, characterization, tissue expression and nutritional regulation of O‐GlcNAc transferase gene in hybrid grouper (Epinephelus fuscoguttatus ♀ × E. lanceolatus ♂)
TL;DR: O-GlcNAc transferase gene was ubiquitously expressed in all detected tissues with highest expressions in brain and liver, to a lesser degree, in eye, heart, kidney and intestine and the expression of OGT was slightly elevated at 6 hr post-glucose injection, and the elevation became significant at 24 hr time-point.
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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?”