Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Tetrahedron Letters 25 (1984), S. 1353-1356 
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1433-8580
    Keywords: Secretin ; Cholecystokinin-Pancreozymin ; Intestinal hormones ; Intestinal absorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of natural secretin (90%) and synthetic secretin as well as impure (10%) and pure (99%) cholecystokinin-pancreozymin (CCK) on net absorption of water, electrolytes, and glucose in human jejunum were studied in 31 normal subjects. An intestinal perfusion technique with a triple-lumen tube was used. Net absorption of water and solute was significantly inhibited by both hormones only with larger doses, pure CCK being less active than impure CCK. A dose-dependent response of water and electrolyte absorption to graded doses of pure CCK was observed, without concomitant inhibition of glucose absorption with lower doses. The findings suggest that secretin and CCK may not be of physiologic importance regarding intestinal absorption in man. The definite changes in intestinal motility and transit rate caused by these hormones seem more likely to result in a reduction of intestinal absorption and an increase in the secretion of water and electrolytes along the proximal small bowel.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1433-8580
    Keywords: Methylxanthines ; Phosphodiesterase ; Cyclic AMP ; Intestinal hormones ; Endocrine pancreas ; Exocrine pancreatic function ; Adrenergic alpha-receptors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The intravenous administration of secretin or cholecystokinin-pancreozymin alone led to a short rapid rise in radio-immunologically measurable insulin, and to a stimulation of the hydrokinetic as well as the ecbolic, exocrine pancreatic function. During the administration of 1-(5-oxohexyl-)-3.7-dimethylxanthine (BL 191) no significant change in the endocrine and exocrine pancreatic secretion was registered, compared to the secretin injection alone, whereas BL 191 was able to inhibit the insulin and enzyme secretion after the administration of cholecystokinin-pancreozymin. The influence neither of secretin nor cholecystokinin-pancreozymin on the endocrine as well as the exocrine pancreas seems to be mediated directly by cyclic 3′-5′ adenosine monophosphate (cAMP), and the decrease of endocrine and exocrine pancreatic secretion, induced by cholecystokinin-pancreozymin during administration of BL 191, is probably due to an inhibition of the alpha-receptor system. Additional experiments are required for further elucidation of these conclusions.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1433-8580
    Keywords: Insulin ; Intestinal hormones ; Atropine ; Vagus ; Insulin ; Intestinale Hormone ; Atropin ; Vagus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung und Schluβfolgerung Bei 35 stoffwechselgesunden freiwilligen Probanden wurde vor sowie nach Atropingabe die Wirkung der intestinalen Hormone Sekretin und Cholecystokinin-Pankreozymin (CCK-PZ) auf die endokrine und exokrine Pankreasfunktion untersucht. Außerdem wurde die Wirkung von intravenös und oral bzw. intraduodenal verabreichter Glucose und Aminosäuren auf die Insulinsekretion, den Blutzucker und die freien Fettsäuren ebenfalls vor und nach Atropinmedikation geprüft. Intravenös verabreichtes Sekretin konnte weder in seiner exokrinen noch endokrinen Pankreasfunktion durch Atropin beeinflußt werden. Intravenös injiziertes CCK-PZ konnte mittels Atropin sowohl in seiner ekbolischen wie auch endokrinen Pankreasfunktion gehemmt werden. Die Wirkung von CCK-PZ ist somit an ein cholinerges System gebunden, so daß es erlaubt erscheint, bezüglich der Pankreozyminwirkung von einem synergistisch bzw. additiv wirksam werdenden „neurohormonalen“ Mechanismus zu sprechen. Die durch parenteral verabreichte Glucose oder Aminosäuren induzierte Insulinsekretion wurde durch Atropin nicht beeinflußt; hingegen hemmte Atropin dieβ-cytotrope Wirkung von oral bzw. intraduodenal verabreichter Glucose oder Aminosäuren. Dies läßt auf eine Abhängigkeit von einem cholinergen oder parasympathischen System in der Freisetzung dieser intestinalen Hormone schließen.
    Notes: Summary and Conclusions In 35 metabolically normal subjects the effect of i.v. secretin and cholecystokinin-pancreozymin (CCK/PZ) on the endocrine and exocrine pancreatic function was investigated, before and after atropine. In addition, the effect of oral, intravenous and intraduodenal administration of glucose and amino acids on blood sugar and free fatty acids before and after the injection of atropine was studied. The secretin stimulated endocrine and exocrine pancreas was not affected by atropine. However, atropine inhibited the ecbolic and endocrine pancreatic function after stimulation with CCK/PZ. Therefore, the effect of i.v. CCK/PZ seems to be mediated by the cholinergic system, or even a “neuro-hormonal” system which acts synergically or additively. No influence of atropine on the insulin secretion induced by i.v. glucose or amino acids was observed. On the other hand, atropine inhibited the beta-cytotropic effect of glucose and amino acids after oral or intraduodenal administration. These findings indicate that the release of these intestinal hormones is dependent on the cholinergic or parasympathetic system.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Research in experimental medicine 180 (1982), S. 223-228 
    ISSN: 1433-8580
    Keywords: Synthetic human gastrin I ; Gastrin-like pentapeptide ; Intestinal absorption ; Zollinger-Ellison syndrome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of synthetic human gastric I (SHG I) and gastrin-like pentapeptide (PG) on jejunal water, electrolyte, and glucose absorption were studied in 11 normal subjects. The i.v. administration of graded doses of SHG I increased plasma gastrin levels similar to those after food intake and in the Zollinger-Ellison syndrome. SHG I and PG caused no significant changes in the net movement of water and solute. The findings indicate that gastrin has no direct effect on intestinal absorption in normal man, and does not account for the mechanism of diarrhea in the Zollinger-Ellison syndrome.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...