Experiments on dogs with a gastric fustula and Pavlov's (miniature) isolated pouch, kept on a high-standard mixed ration evidenced that intravenous administration of various substances acts on the fundal gastric glands differently. Some of such substances stimulate the secretion of an acid gastric juice (xylitol and ethyl alcohol), while others are inert in this respect (sorbitol, 1.2-propandiol, 1.3-butandiol, fatty intralipid emulsion). Five percent solutions of glucose and fructose do not provoke any significant secretion of juice, although also lead to a short-lived pH fall in the gastric secretion. At the same time the action of the said substances is markedly less intensive than the caseine hydrolysate (TSOLIPK) has an effect on the gastric juice. In the practice of parenteral nutrition with the preparation of nutrative mixtures the ability to provoke the gastric secretion by the ethyl alcohol and xylitol an account should be taken of.

Amino Acids↗

PubMedDate not supplied

[State of the digestive system during parenteral feeding].

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Amino Acids↗

PubMedDate not supplied

[Parenteral feeding and the digestive system].

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Amino Acids↗

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[Nature of the stimulating action of parenterally administered casein hydrolysate on gastric secretory function].

Experiments on 4 gastric fistula dogs kept on full-value diet were made in an effort to specify the character of the stimulatory action of parenteral caseine hydrolysate (TSOLIPK) on the gastric fundal glands. In the course of administering the solutions similar to individual components of casein hydrolysate into the blood it was established that the secretory effect of the protein hydrolysate is not a consequence of the presence of ammonia contained by the hydrolysate or depends on the humic substances. It is assumed that the stimulatory action of parenteral casein hydrolysate on the gastric fundal glands is determined by the main protein break down products, i.e. by amino acids and peptides that are capable of acting on the nerve structures and of stimulating gastric secretion via excitation of the centres responsible for gastric function control.

Amino Acids↗

PubMedDate not supplied

[Reflex of food-induced thermogenesis in normal subjects and its changes in patients with obesity].

Dog experiments have established that an initial period of food-induced thermogenesis (FIT) has a reflex nature. This is proved by FIT appearance in sham feeding and disappearance after atropine administration. Various food substances proved capable of evoking this reflex. It was also registered in humans. Oxygen consumption rose within 3-10 minutes after a test meal reaching a 25% maximal increment. However, no or minimal manifestations of the reflex occurred in obese patients. They had to undergo a 30-day weight-reducing treatment to reacquire the lost reflex. Physiological value of FIT as a mechanism stimulating tissue metabolism and preparing food substances assimilation are discussed.

Adult↗

PubMedDate not supplied

[Effect of glutamate and combined with inosine monophosphate on gastric secretion].

Experiments on dogs with Pavlov pouch and gastric fistula demonstrate that monosodium glutamate (MSG) enriched with inosine monophosphate (IMP) potentiate pentagastrin-induced gastric secretion. The preparation (Chi-Mi) was introduced directly into the intestine through a fistula. When given alone in an equal quantity MSG produced the same effect. In per os administration Chi-Mi was more effective, probably due to a different response of the gustatory receptors to MSG and Chi-Mi. When the latter two were added to meat used as a food stimulus, Chi-Mi brought about more intensive gastric secretion in all its phases. In sham feeding Chi-Mi also intensified the secretion augmenting the reflex phase of gastric secretion when added to food substances. The findings may appear helpful in further search for medical application of glutamate and allied substances.

Animals↗