摘要:

Experiments in the rat indicate that following a period of intense muscular exercise, marked hyperchloremia develops and is maintained for several days following discontinuation of the exercise. Simultaneously, the red cell concentration decreases and the haematocrit values remain at approximately the same low level at least during the first 72 hr. of the recovery period.The blood sugar values, which decrease under the influence of muscular exercise, show a marked secondary rise even if the animals are fasted throughout the recovery period.

ISSN:1923-4287    

DOI:10.1139/cjr39d-013

出版商:NRC Research Press    

年代:1939

数据来源: NRC

摘要:

The concentrations of sodium, potassium, calcium, chloride, bicarbonate, and protein and non-protein nitrogen were determined in series of samples of pancreatic juice secreted by dogs in response to (a) constant rate of administration of secretin, (b) varied rate of administration of secretin, and (c) interrupted administration of secretin (rest period, 2 hr.). Spectroscopic as well as chemical methods were used in the analysis of the samples.The data indicate that the membranes of the pancreatic gland offer little resistance to the passage of simple inorganic ions. The compensatory relation between the bicarbonate and chloride concentrations of the secretion is interpreted on the basis of (a) formation of at least part of the bicarbonate within the secretory cells, and (b) the action of membrane forces, probably of an electrical nature. Absorption spectrum studies indicate either (a) that only one type of absorbing protein is present in the secretion, or (b) that if several types are present, they are always secreted in constant proportions whether they are enzymatically active or not. The interpretation of the protein nitrogen and certain other data are given in a subsequent paper.

ISSN:1923-4287    

DOI:10.1139/cjr39d-014

出版商:NRC Research Press    

年代:1939

数据来源: NRC