Secretin and its properties they used to generalize as a perfectly direct and amply demonstrable example of an internal secretion.
Special attention is called to the marked destruction that follows contact of human gastric juice with secretin for merely one minute.
Matuso found that ordinary secretin and that obtained from intestinal lumen gave equally negative results.
When Secretogen was first introduced we assumed that it depended on secretin for results produced.
And even when this is attained, the very fleeting action of secretin will in all probability render secretin therapy as futile in all the diseases in which it is theoretically indicated as epinephrin therapy is in Addison’s disease.
This may be due to other secretin stimulants as fats, or to the action of the nervous mechanisms (Meltzer[86]).
Previously, Spriggs, at the suggestion of Starling, had tried intravenous injections of secretin free from depressor substance in a diabetic patient, and had obtained negative results.
Beveridge’s secretin mixture may kill a dog by too great lowering of the blood pressure.
No secretin was found in the commercial products examined, namely, Secretogen Tablets, Secretogen Elixir and Duodenin.
Yet the objection may be made that the response of the pancreas that is due to the incidental constituents of secretin is maximal, and that the secretin consequently has no opportunity to display its particular potency.
Secretin has not yet been prepared in sufficiently pure state to render possible intravenous injection in man without injurious effects.
A mixture of gelatin, peptone and salt water, the chief incidental constituents of a secretin preparation, gives as striking results as ever obtained from secretin administration.
In fact, secretin left in the test tube or in the bottle remains active over a much longer period of time than when introduced into the blood stream.
No evidence has been presented that the absence of secretin is a cause of gastro-intestinal diseases.
To determine whether these claims are justified it becomes necessary to review the evidence advanced to prove that secretin stimulates the digestive glands.
Secretogen Elixir is said to contain pancreatic secretin obtained from the duodenum with 1/10 of 1 per cent.
Secretogen Tablets are said to be prepared from pure secretin and succus entericus obtained from the epithelial cells of the duodenum.
This case is offered to prove the absence of secretin and its effect when given by the mouth.
The proof that the absence of secretin is characteristic of diabetes or of marasmus is not yet available.
There is no evidence that secretin in any form is physiologically active when administered by the mouth.
Some observers have claimed that secretin is absent in cases of diabetes in which the pancreas is still found normal.
The favorable reports of Moore[82] in regard to the use of secretin in diabetes are not confirmed by the experience of Foster[83] in five cases, or by the case reported by Dakin and Ransom.
The Cause of Infantile Atrophy, Deduced from A Study of Secretin in Normal and Atrophic Infants, The Journal A.
A Comparison of the Influence of Secretinand the Antineuritic Vitamine on Pancreatic Secretion and Bile Flow, Jour.
Voegtlin and Myers conclude, as the result of experiments with brewers' yeast, that the chemical and physical properties of secretin and vitamine are identical.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "secretin" in a variety of sentences. We hope that you will now be able to make sentences using this word.
