Effects of cholecystokinin peptides on digestive enzymes in killifish in vivo

The Neuroendocrine Regulation of Food Intake in Fish: A Review of Current Knowledge

“…In fish, CCK was first shown to have a role in digestion, as, for example, it stimulated contraction of the gallbadder in coho (Vigna and Gorbman, 1977) and Atlantic (Aldman and Holmgren, 1987) salmon, as well as bluegill ( Lepomis macrochirus ), killifish ( Fundulus heteroclitus ), and the holostean bowfin ( Amia calva ) (Rajjo et al, 1988), stimulated lipase secretion in the stomachless killifish (Honkanen et al, 1988) and inhibited gastric secretion in Atlantic cod (Holstein, 1982). The first direct evidence of the actions of CCK on feeding was provided by injections in goldfish (Himick and Peter, 1994), followed by cloning of goldfish CCK cDNA (Peyon et al, 1998) and the demonstration of periprandial variations in CCK mRNA expression levels (Peyon et al, 1999).…”

The Neuroendocrine Regulation of Food Intake in Fish: A Review of Current Knowledge

“…In fish, CCK was first shown to have a role in digestion, as, for example, it stimulated contraction of the gallbadder in coho (Vigna and Gorbman, 1977) and Atlantic (Aldman and Holmgren, 1987) salmon, as well as bluegill ( Lepomis macrochirus ), killifish ( Fundulus heteroclitus ), and the holostean bowfin ( Amia calva ) (Rajjo et al, 1988), stimulated lipase secretion in the stomachless killifish (Honkanen et al, 1988) and inhibited gastric secretion in Atlantic cod (Holstein, 1982). The first direct evidence of the actions of CCK on feeding was provided by injections in goldfish (Himick and Peter, 1994), followed by cloning of goldfish CCK cDNA (Peyon et al, 1998) and the demonstration of periprandial variations in CCK mRNA expression levels (Peyon et al, 1999).…”

Seasonal variation in trypsin activity in juvenile Atlantic salmon upper and lower modal groups

“…Fourteen fish from each group were starved for 5 days. They were then anaesthetized and injected intraperitoneally with CCK (purified natural and sulphated from pork; Sigma P4429) 1·4 Crick units g 1 fresh weight fish (Honkanen et al, 1988) and left in the water for 5 h. Comparisons were made with the starved fish above to determine whether the expected trypsin release in the UMG fish was found in the LMG fish also, or whether the secretory mechanism was non-operational.…”

The Neuroendocrine Regulation of Food Intake in Fish: A Review of Current Knowledge

“…In fish, CCK was first shown to have a role in digestion, as, for example, it stimulated contraction of the gallbadder in coho (Vigna and Gorbman, 1977) and Atlantic (Aldman and Holmgren, 1987) salmon, as well as bluegill ( Lepomis macrochirus ), killifish ( Fundulus heteroclitus ), and the holostean bowfin ( Amia calva ) (Rajjo et al, 1988), stimulated lipase secretion in the stomachless killifish (Honkanen et al, 1988) and inhibited gastric secretion in Atlantic cod (Holstein, 1982). The first direct evidence of the actions of CCK on feeding was provided by injections in goldfish (Himick and Peter, 1994), followed by cloning of goldfish CCK cDNA (Peyon et al, 1998) and the demonstration of periprandial variations in CCK mRNA expression levels (Peyon et al, 1999).…”

Seasonal variation in trypsin activity in juvenile Atlantic salmon upper and lower modal groups

“…Fourteen fish from each group were starved for 5 days. They were then anaesthetized and injected intraperitoneally with CCK (purified natural and sulphated from pork; Sigma P4429) 1·4 Crick units g 1 fresh weight fish (Honkanen et al, 1988) and left in the water for 5 h. Comparisons were made with the starved fish above to determine whether the expected trypsin release in the UMG fish was found in the LMG fish also, or whether the secretory mechanism was non-operational.…”

The Neuroendocrine Regulation of Food Intake in Fish: A Review of Current Knowledge

“…In fish, CCK was first shown to have a role in digestion, as, for example, it stimulated contraction of the gallbadder in coho (Vigna and Gorbman, 1977) and Atlantic (Aldman and Holmgren, 1987) salmon, as well as bluegill ( Lepomis macrochirus ), killifish ( Fundulus heteroclitus ), and the holostean bowfin ( Amia calva ) (Rajjo et al, 1988), stimulated lipase secretion in the stomachless killifish (Honkanen et al, 1988) and inhibited gastric secretion in Atlantic cod (Holstein, 1982). The first direct evidence of the actions of CCK on feeding was provided by injections in goldfish (Himick and Peter, 1994), followed by cloning of goldfish CCK cDNA (Peyon et al, 1998) and the demonstration of periprandial variations in CCK mRNA expression levels (Peyon et al, 1999).…”

Seasonal variation in trypsin activity in juvenile Atlantic salmon upper and lower modal groups

“…Fourteen fish from each group were starved for 5 days. They were then anaesthetized and injected intraperitoneally with CCK (purified natural and sulphated from pork; Sigma P4429) 1·4 Crick units g 1 fresh weight fish (Honkanen et al, 1988) and left in the water for 5 h. Comparisons were made with the starved fish above to determine whether the expected trypsin release in the UMG fish was found in the LMG fish also, or whether the secretory mechanism was non-operational.…”