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
    s.l. : American Chemical Society
    Analytical chemistry 25 (1953), S. 1169-1174 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Diabetologia 6 (1970), S. 593-596 
    ISSN: 1432-0428
    Keywords: Glucose ; fructose ; portal circulation ; liver ; carbohydrate tolerance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé L'infusion de fructose dans la veine porte de chiens anesthésiés produit des concentrations de fructose dans le plasma artériel inférieures à celles obtenues après l'infusion d'une même quantité de fructose dans une veine superficielle. Au contraire, l'infusion de glucose provoquait des taux artériels moyens de glucose très similaires, par les deux voies d'administration. — Ces résultats indiquent qu'une quantité considérable de fructose disparaît pendant la première circulation portale. Ce qui est suffisant pour expliquer les taux plasmatiques de fructose plus bas après l'administration orale du sucre, comparés aux résultats obtenus après l'administration intraveineuse. Les résultats obtenus après l'administration de glucose n'étayent pas l'opinion qu'une tolérance supérieure obtenue par voie orale est uniquement causée par une adsorption hépatique des quantités considérables de glucose présentées au foie par la circulation portale.
    Abstract: Zusammenfassung Die arteriellen Plasma-Fructose Spiegel lagen bei narkotisierten Hunden nach Fructose-Infusion in die Pfortader wesentlich niedriger als nach Infusion der gleichen Fructosemenge in eine periphere Vene. Im Gegensatz dazu stimmten die mittleren arteriellen Blutzuckerspiegel nach Glucoseinfusionen über beide Routen weitgehend überein. — Die Befunde deuten darauf hin, daß die Leber bei der ersten Passage des Pfortaderblutes eine signifikante Menge Fructose aufnimmt, und sie reichen aus, um zu erklären, warum nach oraler Verabreichung von Fructose niedrigere Plasma-Fructose-Spiegel als nach intravenöser Zufuhr zu beobachten sind. Im Falle der Glucose liefern die Daten jedoch keine Stütze für die Ansicht, daß die orale Toleranz die intravenöse lediglich wegen der Aufnahme großer Glucosemengen durch die Leber aus dem Pfortaderangebot übertrifft.
    Notes: Summary Infusion of fructose into the portal vein of anaesthetized dogs gave arterial plasma fructose levels which were much lower than those obtained with infusion of the same amount of fructose into a systemic vein. In contrast, when glucose was infused mean arterial blood glucose levels were similar for the two routes of administration. — These results indicate that significant hepatic removal of fructose occurs during the first portal circulation, and is sufficient to explain the lower levels of plasma fructose which follow oral, compared with intravenous, administration of the sugar. In the case of glucose, however, the results do not support the view that the superiority of oral over intravenous tolerance is due simply to hepatic uptake of large amounts of glucose presented to the liver by the portal circulation.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1432-0428
    Keywords: Intestinal hormones ; insulin release ; intestinal insulin releasing polypeptide (IRP) ; gastric inhibitory peptide (GIP) ; motilin ; vasoactive intestinal polypeptide (VIP) ; glucagon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Intestinal insulin releasing polypeptide (IRP) and Gastric inhibitory polypeptide (GIP) have a similar effect on intravenous glucose tolerance in the rat. Both augment the insulin response to intravenous glucose and increase the rate of glucose disappearance. VIP and motilin have no discernible effect. Plasma insulin dose-response curves to IRP and GIP are similar; both peptides stimulate insulin release in the presence of small blood glucose increments. A direct comparison of the insulin releasing potency of IRP and GIP is not possible as the former is not yet available in pure form.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1432-0428
    Keywords: Adrenaline ; IRP ; intestinal hormones ; insulin release ; glucose infusion ; secretin ; glucose tolerance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Intestinal insulin releasing polypeptide (IRP) has been shown to potentiate the release of insulin in response to glucose bothin vitro andin vivo in the rat. Adrenaline reduced the insulin secretory response to the intravenous infusion (I.V.) of glucose and to the infusion of glucose with IRP given either as a rapid injection or as constant infusion.
    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...