Cited by 72Pancreatic function and diabetesDiabetes Treatment and ManagementDiabetes Management and Research

Compartmental modeling of glucagon kinetics in the conscious dog

Dobbins, Robert L., Davis, Stephen N., Neal, Doss W., Cobelli, Claudio, Jaspan, Jon, Cherrington, Alan D.·1995·Metabolism

Abstract

The aim of the present study was to examine glucagon metabolism and distribution using both compartmental-modeling approaches and steady-state organ-balance techniques in conscious, overnight-fasted dogs. Arterial plasma glucose concentrations were clamped at 14 mmol/L with a variable exogenous glucose infusion. Somatostatin was infused to block endogenous secretion of insulin and glucagon. Insulin was replaced intraportally at 2.4 pmol.kg-1.min-1 to maintain basal insulin concentrations in the range from 70 +/- 4 to 95 +/- 12 pmol/L. Glucagon was not given during the control period, but was subsequently infused peripherally in four 1-hour steps of 1.0, 3.0, 6.0, and 3.0 ng.kg-1.min-1. Glucagon levels increased from 0 to 68 +/- 6, 195 +/- 19, 378 +/- 47, and 181 +/- 20 ng/mL. Compartmental analysis of glucagon concentrations showed that glucagon was distributed in one compartment with a volume approximately equal to the plasma volume. The metabolic clearance rate of glucagon was 17.6 mL.kg-1.min-1. The liver cleared 24% of glucagon, and the kidneys, 17%.

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Crossref · 10.1016/0026-0495(95)90051-9

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Authors
Dobbins, R. L., Davis, S. N., Neal, D. W., Cobelli, C., Jaspan, J., & Cherrington, A. D.
Affiliations
Tulane University (US)
Corresponding author
Cherrington, Alan D.
Venue
Metabolism
Publisher
Elsevier BV
Published
1995-04
Volume
44
Issue
4
Pages
452-459
ISSN
0026-0495 (ISSN-L)
OpenAlex
W1985847165
Cited by
72
References
46
Citations by year
2026: 2 · 2025: 2 · 2024: 3 · 2023: 2 · 2022: 3 · 2020: 3 · 2019: 2 · 2018: 3 · 2017: 1 · 2016: 3 · 2015: 4 · 2014: 1 · 2013: 1 · 2012: 2
FWCI
2.16
Type
journal article
Language
en
Open access
closed
Locations
  • Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion)
Funders
  • National Institutes of Health (5r01am018243-11, 5p60dk020593-31)
  • National Institute of Diabetes and Digestive and Kidney Diseases (5P60 DK-20593)
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
Keywords
glucagon, compartmental modeling, metabolic clearance rate, somatostatin, insulin replacement therapy, glucose infusion, overnight fasting, conscious dogs
MeSH terms
Animals, Dogs, Female, Glucagon, Glucose, Insulin, Kinetics, Liver, Liver Circulation, Male, Models, Biological, Osmolar Concentration, Renal Circulation

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