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  • Articles  (2)
  • Cholecystokinin  (2)
  • exocrine pancreatic secretion  (1)
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  • Articles  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Cholecystokinin is not a major regulator in the digestive system in the chicken (1994)
    Springer
    Cellular and molecular life sciences 50 (1994), S. 812-814 
    Details
    ISSN: 1420-9071
    Keywords: Cholecystokinin ; exocrine pancreatic secretion ; bile flow ; chicken ; rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract To find out whether physiological concentrations of cholecystokinin (CCK), a gastrointestinal hormone in mammals, are also active in chickens, the pancreatic amylase secretory response to CCK-8 was investigated in vitro. Rat pancreatic acini responded to the physiological concentration of CCK-8, but in chickens amylase release was induced at a concentration of CCK-8 1000 times higher than that observed in rats. In another experiment, biliary flow was tested with several doses of CCK-8. The bile flow was stimulated in a dose-dependent fashion, but a significant enhancement was not obtained at a concentration of 0.5 μg CCK-8/kg body weight, which was considerably higher than physiological ones. It is concluded that endogeneous CCK does not have an important role in the digestive system in the chicken.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01956461
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  • 2
    Electronic Resource
    Electronic Resource
    Endogenous cholecystokinin is not a major regulator of food intake in the chicken (1994)
    Springer
    Journal of comparative physiology 164 (1994), S. 425-429 
    Details
    ISSN: 1432-136X
    Keywords: Cholecystokinin ; Caerulein ; Chicken food intake ; Devazepide ; Amylase secretion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract This study investigated whether or not endogenous cholecystokinin exerts satiety effects in chickens. After several doses (0, 1, 2 and 4 μg·kg body weight-1) of intravenous injection of caerulein, the bile flow was increased in a dose-dependent fashion. However, the pharmacological level of caerulein failed to suppress the food intake of chickens. Two potent stimulators of endogenous cholecystokinin, i.e., soybean trypsin inhibitor and phenylalanine were administered to chickens before feeding and food intake was determined over 2 h. The soybean trypsin inhibitor and phenylalanine did not alter food intake. Devazepide, a cholecystokinin-A receptor antagonist, significantly decreased amylase release from the dispersed chicken pancreatic acini stimulated by caerulein. However, devazepide did not improve food intake of the chicken. The results obtained suggest that endogenous cholecystokinin may not act as a satiety signal in chickens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00714578
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    Paper (German National Licenses)
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