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Digitale Medien

Effectiveness of the intestinal polypeptides, IRP, GIP, VIP and motilin on insulin release in the rat (1974)

Turner, D. S. ; Etheridge, Lauraine ; Marks, V. ; [weitere]

Springer

Diabetologia 10 (1974), S. 459-463

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ISSN: 1432-0428

Schlagwort(e): Intestinal hormones ; insulin release ; intestinal insulin releasing polypeptide (IRP) ; gastric inhibitory peptide (GIP) ; motilin ; vasoactive intestinal polypeptide (VIP) ; glucagon

Quelle: Springer Online Journal Archives 1860-2000

Thema: Medizin

Notizen: 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.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01221638

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Digitale Medien

Gas-phase copolymerization of sulfur dioxide and butene-1 (1972)

Brown, J. R. ; O'Donnell, J. H.

New York : Wiley-Blackwell

Journal of Polymer Science Part A-1: Polymer Chemistry 10 (1972), S. 1997-2004

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Details

ISSN: 0449-296X

Schlagwort(e): Physics ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: Mixtures of sulphur dioxide and butene-1 have been polymerized in the gas phase to the 1:1 alternating copolymer by electron irradiation. The rate of polymerization, measured by the decrease in gas pressure, decreased with increase in temperature over the range -20 to +30°C. The initial G(-monomer) values decreased from 500 to 50 giving an Arrhenius activation energy of -30 kJ mol-1. These results are consistent with a ceiling temperature-pressure relationship. The ceiling temperature is about 60°C lower than that observed previously in the liquid phase in accord with thermo-dynamic prediction.

Zusätzliches Material: 4 Ill.