2003
DOI: 10.1016/s0044-8486(03)00281-3
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Short- and long-term effects of refeeding on key enzyme activities in glycolysis–gluconeogenesis in the liver of gilthead seabream (Sparus aurata)

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Cited by 151 publications
(92 citation statements)
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“…These authors showed a significant decrease in its activity (27% and 37%) verified, respectively, in young mice (subjected to 1 month of caloric restriction --60% of ad libitum intake) and in old mice (subjected to 28 months of caloric restriction with the same daily caloric intake). The NZR PK activity results were also corroborated by a study in fish that were starved during 18 days, in which PK activity significantly decreased (Meton et al, 2003). PK revealed no influence of food restriction on its mRNA level in the NZ breed.…”
Section: Discussionsupporting
confidence: 58%
“…These authors showed a significant decrease in its activity (27% and 37%) verified, respectively, in young mice (subjected to 1 month of caloric restriction --60% of ad libitum intake) and in old mice (subjected to 28 months of caloric restriction with the same daily caloric intake). The NZR PK activity results were also corroborated by a study in fish that were starved during 18 days, in which PK activity significantly decreased (Meton et al, 2003). PK revealed no influence of food restriction on its mRNA level in the NZ breed.…”
Section: Discussionsupporting
confidence: 58%
“…This result was consistent with the previous researches in mammals [53]. In aquatic animals, some similar researches were also reported such as gilthead sea bream [54,55], carp [56]; grass carp [57] and channel catfish (Ictalurus punctatus) [58]. At the same time, other researchers have demonstrated that the above fact has not been observed in Senegalese sole (Solea senegalensis, Kaup) and eel (Anguilla anguilla) [59,60].…”
Section: Discussionsupporting
confidence: 90%
“…The ubiquitous presence of 2 H in the body means that any tissue that can generate glucose via G6P and export it into blood can potentially contribute to the observed plasma glucose 2 H-enrichment pattern. For most fish species, including the seabass, hepatic glycogen stores are depleted during fasting (Metón et al, 2003;Pérez-Jiménez et al, 2007 being therefore unable to sustain significant rates of EGP via glycogenolysis as observed. During refeeding with fishmeal-based diet there is an increased dependence on gluconeogenesis for EGP and for the repletion of hepatic glycogen (Viegas et al, 2012), however the decreased contribution of G6P sources to blood glucose during refeeding compared to the fed state may suggest better utilization of dietary CHO.…”
Section: Sources Of Blood Glucose During Prolonged Fasting and Conseqmentioning
confidence: 95%
“…1). Transition of hepatic metabolism from fasting to feeding has provided insight into the functioning and responsiveness of fish species to dietary cues (Metón et al, 2003;Metón et al, 2004;Soengas et al, 2006;Pérez-Jiménez et al, 2007. Under a low CHO diet as the one used in the present study, GK activity was very low in fed seabass as reported previously (Enes et al, 2008b; Moreira et al, Table 2 Primer pairs used for the GK and G6Pase partial cDNA cloning by RT-PCR and primers used to assay GK and G6Pase mRNA levels by quantitative real-time RT-PCR analysis.…”
Section: Nutritional Regulation Of G6pase and Gkmentioning
confidence: 99%