[Reflex nature of the initial component of thermogenesis].
In experiments on dogs with sham feeding it has been shown that the initial component of thermogenesis induced by food is of reflectory nature. During sham feeding 100 g of meat after 10-15 min induced 1.2-2-fold increase of oxygen consumption as compared to the initial value. Other food products (bread, butter, glucose solution) in the same time interval produce a slightly lower but always distinct effect. Even aspartam (28 mg in 50 ml of water) induces a manifest increase of oxygen consumption. This effect is completely eliminated by atropine. alpha- and beta-adrenoblockers (combined phentolamine and propranolol hydrochloride) lead to a sharp decrease in the intensity and duration of the effect. It has been concluded that both cholinergic and adrenergic nervous routes participate in this reflectory action. A suggestion has been made that the importance of this reflex lies in the anticipating stimulation of certain metabolic processes associated with impending assimilation of the ++consumed food.
Shlygin
G K
GK
Gapparov
M M
MM
Vasilevskaia
L S
LS
Sokolov
A I
AI
D000320:Adrenergic Fibers / Q000502:physiology; D000821:Animal Feed; D000818:Animals; D001833:Body Temperature Regulation / Q000502:physiology*; D002799:Cholinergic Fibers / Q000502:physiology; D004064:Digestive System / Q000294:innervation*; D004068:Digestive System Physiological Phenomena; D004285:Dogs; D004750:Enteral Nutrition; D010084:Oxidation-Reduction; D010101:Oxygen Consumption / Q000502:physiology; D012018:Reflex / Q000502:physiology*; D013997:Time Factors
Reflektornaia priroda nachal'nogo zvena termogeneza.