Correlation between endocrine function and gastric secretion (II) influence of exogenous pepsinogen infusion upon pepsin secretion and urinary excretion of 17-OHCS in Pavlov-and Heidenhain pouch dogs

1966 ◽  
Vol 1 (3) ◽  
pp. 81-81
Author(s):  
S. Hiramatsu ◽  
Y. Bitoh ◽  
N. Nakajima ◽  
K. Shiraki
Keyword(s):  
Gastric Secretion ◽  
Urinary Excretion ◽  
Endocrine Function ◽  
Pepsin Secretion ◽  
Heidenhain Pouch

Catecholamines and the cephalic phase of gastric secretion

1981 ◽  
Vol 59 (11) ◽  
pp. 1189-1191 ◽  
Author(s):  
K. Etzel ◽  
J. Wisecarver ◽  
D. F. Magee
Keyword(s):  
Gastric Secretion ◽  
Conscious Dogs ◽  
Pepsin Secretion ◽  
Heidenhain Pouch ◽  
Cephalic Phase ◽  
Adrenergic Agent

Methoxamine, an α-adrenergic agent, and isoproterenol, a β-adrenergic agent, significantly augmented indirect vagally stimulated (intravenous 2-deoxy-D-glucose) acid and pepsin secretion from the main stomachs of conscious dogs. Heidenhain pouch secretion in the same dogs was unaffected.

THE INFLUENCE OF 17α-METHYL-19-NORTESTOSTERONE ON THE ENDOCRINE FUNCTION OF THE ADRENAL CORTEX

1960 ◽  
Vol XXXIII (III) ◽  
pp. 388-400 ◽  
Author(s):  
L. G. Huis in 't Veld ◽  
B. Louwerens ◽  
P. A. F. van der Spek
Keyword(s):  
Urinary Excretion ◽  
Adrenal Cortex ◽  
Direct Effect ◽  
Chorionic Gonadotrophin ◽  
Endocrine Function ◽  
List Type ◽  
Prolonged Administration ◽  
Acth Secretion ◽  
Male Patients ◽  
Normal Males

ABSTRACT In two male patients and two castrated males, the influence of corticotrophin (ACTH) on the urinary excretion of neutral 17-ketosteroids and 17-hydroxycorticosteroids was determined before and during a period in which patients were treated with 5 mg 17α-methyl-19-nortestosterone (MNT) daily. In two castrated males, moreover, the influence of chorionic gonadotrophin and ACTH + chorionic gonadotrophin on the urinary excretion of 17-ketosteroids and 17-hydroxycorticosteroids was determined before and during a period of treatment with 5 mg MNT daily. Prolonged administration of MNT causes a decrease in the urinary excretion of neutral 17-ketosteroids and 17-hydroxycorticosteroids both in the normal males and in the male castrates. ACTH caused an increase in the urinary excretion of 17-ketosteroids and 17-hydroxycorticosteroids before and during MNT administration. During MNT administration this increase (expressed in mg/24 hours) was ≤ the increase produced by the same dose of ACTH prior to MNT administration. In two male castrates treated with MNT, chorionic gonadotrophin caused no increase in the urinary excretion of 17-ketosteroids and 17-hydroxycorticosteroids. The effect obtained before and during MNT administration by administration of ACTH + chorionic gonadotrophin did not exceed the effect obtained by the same dose of ACTH alone. Our conclusion is that the effect of MNT on the excretion of adrenocortical steroids is not due to the inhibition of the ACTH secretion. The possibility of a direct effect of MNT on the adrenal cortex has not been excluded with complete certainty. A change in the corticosteroid metabolism due to the influence of MNT, however, must also be taken into consideration.

Effects of bombesin on food intake and gastric acid secretion in cats

1989 ◽  
Vol 256 (1) ◽  
pp. R181-R186
Author(s):  
A. Bado ◽  
M. J. Lewin ◽  
M. Dubrasquet
Keyword(s):  
Gastric Emptying ◽  
Food Intake ◽  
Gastric Secretion ◽  
Acid Secretion ◽  
Gastric Fistula ◽  
Single Class ◽  
Heidenhain Pouch ◽  
Daily Food Intake ◽  
Feeding Experiments ◽  
Daily Food

The brain and gut peptide bombesin has been reported both to stimulate gastric secretion and to induce satiety. To understand how the peripheral administration of bombesin affects food intake and whether gastric mechanisms are involved, a comparative study of the doses of bombesin active on gastric secretion, gastric emptying, and food intake was undertaken in cats provided with a gastric fistula and a denervated Heidenhain pouch. The smallest dose of intravenous bombesin that stimulated significantly basal acid secretion (20 pmol.kg-1.h-1) by the gastric fistula also enhanced meal-stimulated acid secretion by the Heidenhain pouch (+138%, P less than 0.01), delayed gastric emptying of a liquid protein meal (-30%, P less than 0.01), and suppressed food intake when the test meal was allowed to reach the stomach (-15%, P less than 0.01). Conversely, in sham-feeding experiments, the same dose of bombesin increased food intake (+35%, P less than 0.01). In full-day experiments conducted in nonfasted cats, bombesin decreased both the food intake in the 4-h period after the infusion and the daily food intake, whereas octapeptide cholecystokinin induced a transient satiety but did not decrease daily food intake. These results indicate that in cats the interaction of bombesin with "pregastric" mechanisms is not sufficient to induce satiety and that a relation could exist between the effects of bombesin on gastric secretion, emptying, and food intake. A single class of receptors might be involved in these peripheral effects of bombesin.

Stimulating Effect of Vagotomy on Gastric Secretion in Heidenhain Pouch Dog

1953 ◽  
Vol 174 (2) ◽  
pp. 219-225 ◽  
Author(s):  
Shirl O. Evans ◽  
Jose M. Zubiran ◽  
Jack D. McCarthy ◽  
Herzl Ragins ◽  
Edward R. Woodward ◽  
...  
Keyword(s):  
Gastric Secretion ◽  
Heidenhain Pouch

Effects of Calcium Infusion on Gastric Secretion in Heidenhain Pouch Dogs

1966 ◽  
Vol 1 (2) ◽  
pp. 124-131 ◽  
Author(s):  
M. Mignon ◽  
J.-M. Limbosch ◽  
J. H. Wyllie ◽  
M. J. Rheault ◽  
L. M. Nyhus
Keyword(s):  
Gastric Secretion ◽  
Heidenhain Pouch ◽  
Calcium Infusion

Alterations in gastric secretion following hypothalamic lesions producing hyperphagia

1965 ◽  
Vol 209 (2) ◽  
pp. 319-323 ◽  
Author(s):  
Peter T. Ridley ◽  
Frank P. Brooks
Keyword(s):  
Food Intake ◽  
Gastric Secretion ◽  
Neural Control ◽  
Neural Mechanisms ◽  
Gastric Fistula ◽  
Central Regulation ◽  
Pepsin Secretion ◽  
Insulin Hypoglycemia ◽  
Hypothalamic Lesions

Fasting gastric secretion and secretion during insulin hypoglycemia were collected from hypothalamic hyperphagic rats equipped with chronic gastric fistula in an attempt to correlate the hypothalamic neural mechanisms controlling food intake with gastric secretion. The interdigestive or basal fasting secretion of rats rendered hyperphagic by stereotaxic ablation of the ventromedial nuclei was significantly increased in volume, acid concentration and output, and pepsin output when compared with control and sham-operated rats and rats with hypothalamic lesions without hyperphagia. Hypothalamic hyperphagic rats did not show a significant increase in gastric secretion during insulin hypoglycemia, whereas the other groups did. The levels of hypoglycemia induced by insulin were comparable in all groups. These studies suggest an important role of the ventromedial nuclei in the central regulation of acid and pepsin secretion, and also relate the hypothalamic neural control of gastric secretion to that of food intake. The results also indicate that this nucleus is involved either as a "center" or pathway in the augmentation of gastric secretion by insulin hypoglycemia.

Inhibition of gastric secretion by thyroid preparations

1959 ◽  
Vol 196 (6) ◽  
pp. 1262-1265 ◽  
Author(s):  
E. S. Nasset ◽  
V. W. Logan ◽  
M. L. Kelley ◽  
Mary Thomas
Keyword(s):  
Gastric Secretion ◽  
Gastric Juice ◽  
Gradual Decline ◽  
Heidenhain Pouch ◽  
Significant Fall ◽  
Lean Beef ◽  
Inhibition Of Gastric Secretion

Four dogs with Thomas gastric pouches and one dog with a Heidenhain pouch were stimulated to secrete gastric juice by feeding 100 gm of lean beef. Feeding whole desiccated thyroid ordinarily caused a significant fall in volume of gastric juice and in the total quantity of HCl secreted. Crystalline thyroxine yielded erratic results and one trial with triiodothyronine produced a significant increase in gastric secretion. Thyroidectomy in one dog resulted in a gradual decline in secretion, but hypothyroidism produced by administration of mercaptoimidazole in another animal lead to a significant increase in secretion.

Secretin effect on gastrin, gastric secretion in dogs with chronic antral stimulation

1975 ◽  
Vol 228 (6) ◽  
pp. 1775-1781 ◽  
Author(s):  
S Nasca ◽  
M Mignon ◽  
L Gramatica ◽  
J-P Accary ◽  
S Bonfils
Keyword(s):  
Gastric Secretion ◽  
Acid Output ◽  
Physiological Activity ◽  
Fold Increase ◽  
Acid Inhibition ◽  
Plasma Gastrin ◽  
Heidenhain Pouch ◽  
Fasting Plasma

Antrocolic transposition in four dogs with Heidenhain pouch and gastrojejunostomyresulted in a marked increase in fasting plasma gastrin concentration and sustained highacid secretion, closely related to gastrin levels. A marked production of pepsin output could not be correlated with plasma gastrin. Reduction in plasma gastrin concentration was more than twofold less pronounced than the reduction in acid output for 1 and 2 U/kg-h, while the 0.5 U/kg-h no effect was noted. For both acid output and gastrin concentrations, close correlations were noted between presecretion level and remaining level upon secretin infusion. Despite the reduction in the secretory volume of the pouch, 0.5 and 1 U/kg-h of secretin induced a 1.5- and 2-fold increase in pepsin output, respectively. Two untis per kilagram-hour decreased the secretory volume as well as the pepsin output. If the physiological release of secretin in dogs does not exceed the equivalent of the lowest dose studied, our results would indicate that acid inhibition is a physiological activity of secretin, while the effect on circulating gastrin concentration seems to be phamacological.

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