[Hormonal modifications induced by food intake contribute to the regulation of the body weight and to metabolic variations].
In the rat the energy content of the body is subject to homeostatic control. The level of energy content depends on internal and external conditions. In the adult individual food intake is matched exactly to energy expenditure. Food intake leads to profound alterations in several hormonal plasma levels affecting metabolism e.g. insulin, glucagon and catecholamines. These hormones play an important feedback role in the storage and depletion of reserve tissues such as liver and fat cells. In this paper it is discussed that messages reporting energy content of the body may influence feeding motivation and that the CNS and especially the hypothalamus plays a directing role in this respect. Among these motivation setting messages the pancreatic hormones insulin and glucagon may be prominent factors in respectively long- and short-term regulation of food intake.
D000273:Adipose Tissue / Q000378:metabolism; D000818:Animals; D001786:Blood Glucose / Q000378:metabolism*; D001835:Body Weight; D002940:Circadian Rhythm; D004435:Eating; D005230:Fatty Acids, Nonesterified / Q000097:blood; D005247:Feeding Behavior; D005934:Glucagon / Q000097:blood*; D007031:Hypothalamus / Q000502:physiology; D007328:Insulin / Q000097:blood*; D007515:Islets of Langerhans / Q000378:metabolism; D008099:Liver / Q000378:metabolism; D009424:Nervous System Physiological Phenomena; D051381:Rats
D001786:Blood Glucose; D005230:Fatty Acids, Nonesterified; D007328:Insulin; D005934:Glucagon
Les modifications hormonales induites par la ration alimentaire contribuent à la régulation du poids corporel et aux variations métaboliques.