Effects of short-term starvation on the rhythmic expression of microRNAs in skeletal muscle of goldfish (Carassius auratus )

2017 ◽  
Vol 49 (2) ◽  
pp. 726-737 ◽  
Author(s):  
Ping Wu ◽  
Jun Shi ◽  
Chengyong Yang ◽  
Fangliang Zhang ◽  
Yulong Li ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Carassius Auratus ◽  
Short Term ◽  
Rhythmic Expression ◽  
Goldfish Carassius Auratus

Brain lesions and short-term endocrine effects of monosodium L-glutamate in goldfish, Carassius auratus

1980 ◽  
Vol 212 (3) ◽  
Author(s):  
RichardE. Peter ◽  
Olivier Kah ◽  
ChristineR. Paulencu ◽  
Harry Cook ◽  
AnnL. Kyle
Keyword(s):  
Carassius Auratus ◽  
Brain Lesions ◽  
Endocrine Effects ◽  
Short Term ◽  
Goldfish Carassius Auratus

Anaerobic metabolism in goldfish (Carassius auratus)

1977 ◽  
Vol 55 (8) ◽  
pp. 1304-1311 ◽  
Author(s):  
R. M. Walker ◽  
P. H. Johansen
Keyword(s):  
Carassius Auratus ◽  
Glycogen Phosphorylase ◽  
Anaerobic Metabolism ◽  
Liver Glycogen ◽  
Energy Yield ◽  
Low Oxygen ◽  
Short Term ◽  
Liver Size ◽  
Goldfish Carassius Auratus ◽  
Glycogen Stores

At 20 °C goldfish survive anaerobic conditions for only a few hours while at 4 °C survival is extended to several days. During the course of low-temperature anaerobiosis there was a rise in blood glucose and lactate, a decline in liver glycogen concentration, and an increase in liver water content, while liver size remained constant.The better cold anaerobic survival of winter and hypophysectomized goldfish compared with spring and sham-operated animals was correlated with greater glycogen stores in the livers of the former. It is concluded that liver glycogen is a necessary energy source during cold anaerobiosis, and it is suggested that the resulting hyperglycemia may represent a mechanism to increase glycolytic energy yield. Cold anaerobiosis also resulted in elevated liver glucose-6-phosphatase (EC 3.1.3.9) activity, suggesting an increase in glycogenolysis, but no change in glycogen phosphorylase (EC 2.4.1.1) activity. While cold anaerobic survival is short term it is possible that liver glycogen may sustain goldfish for longer periods at low oxygen levels through a mixed aerobic–anaerobic metabolism.

Feeding Time Synchronizes Clock Gene Rhythmic Expression in Brain and Liver of Goldfish (Carassius auratus)

2011 ◽  
Vol 26 (1) ◽  
pp. 24-33 ◽  
Author(s):  
Andrea Feliciano ◽  
Yurena Vivas ◽  
Nuria de Pedro ◽  
María J. Delgado ◽  
Elena Velarde ◽  
...  
Keyword(s):  
Carassius Auratus ◽  
Clock Gene ◽  
Feeding Time ◽  
Rhythmic Expression ◽  
Goldfish Carassius Auratus

Short-Term Serum Prolactin Concentrations in Goldfish (Carassius auratus) Subjected to Serial Sampling and Restraint

1976 ◽  
Vol 33 (1) ◽  
pp. 183-186 ◽  
Author(s):  
Richard E. Spieler ◽  
Albert H. Meier
Keyword(s):  
Carassius Auratus ◽  
Marked Decrease ◽  
Circadian Variation ◽  
Serum Prolactin ◽  
Short Term ◽  
Goldfish Carassius Auratus ◽  
Serial Sampling ◽  
The Times ◽  
Initial Capture

Serum prolactin concentrations in serially sampled goldfish (Carassius auratus) did not vary significantly between 30 s and 3 min after initial capture. A marked decrease in prolactin concentration was noted 9–17 min after initial capture followed by a recovery at 30–48 min. Although there was a circadian variation in prolactin concentration, the pattern of response to capture and sampling did not vary significantly among the times tested.

scholarly journals In Situ Localization and Rhythmic Expression of Ghrelin and ghs-r1 Ghrelin Receptor in the Brain and Gastrointestinal Tract of Goldfish (Carassius auratus)

PLoS ONE ◽  
2015 ◽  
Vol 10 (10) ◽  
pp. e0141043 ◽  
Author(s):  
Aída Sánchez-Bretaño ◽  
Ayelén M. Blanco ◽  
Suraj Unniappan ◽  
Olivier Kah ◽  
Marie-M. Gueguen ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Carassius Auratus ◽  
Ghrelin Receptor ◽  
Rhythmic Expression ◽  
Goldfish Carassius Auratus ◽  
The Brain

scholarly journals First evidence of nocturnin in fish: two isoforms in goldfish differentially regulated by feeding

2018 ◽  
Vol 314 (2) ◽  
pp. R304-R312 ◽  
Author(s):  
Ayelén M. Blanco ◽  
Miguel Gómez-Boronat ◽  
Diego Madera ◽  
Ana I. Valenciano ◽  
Angel L. Alonso-Gómez ◽  
...  
Keyword(s):  
Food Deprivation ◽  
Carassius Auratus ◽  
Energy Homeostasis ◽  
Physiological Mechanisms ◽  
Peripheral Tissues ◽  
Rhythmic Expression ◽  
Fish Model ◽  
Goldfish Carassius Auratus ◽  
Partial Length ◽  
Single Meal

Nocturnin (NOC) is a unique deadenylase with robust rhythmic expression involved in the regulation of metabolic processes in mammals. Currently, the possible presence of NOC in fish is unknown. This report aimed to identify NOC in a fish model, the goldfish ( Carassius auratus), and to study the possible regulation of its expression by feeding. Two partial-length cDNAs of 293 and 223 bp, named nocturnin-a ( noc-a) and nocturnin-b ( noc-b), were identified and found to be highly conserved among vertebrates. Both mRNAs show a similar widespread distribution in central and peripheral tissues, with higher levels detected for noc-a compared with noc-b. The periprandial expression profile revealed that noc-a mRNAs rise sharply after a meal in hypothalamus, intestinal bulb, and liver, whereas almost no changes were observed for noc-b. Food deprivation was found to exert opposite effects on the expression of both NOCs (generally inhibitory for noc-a, and stimulatory for noc-b) in the three mentioned tissues. A single meal after a 48-h food deprivation period reversed (totally or partially) the fasting-induced decreases in noc-a transcripts in all studied tissues and the increases in noc-b expression in the intestinal bulb. Together, this study offers the first report of NOC in fish and shows a high dependence of its expression on feeding and nutritional status. The differential responses to feeding of the two NOCs raise the possibility that they might be underlying different physiological mechanisms (e.g., food intake, lipid mobilization, energy homeostasis) in fish.

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