Cited by 96Pancreatic function and diabetesMathematical and Theoretical Epidemiology and Ecology ModelsNonlinear Differential Equations Analysis

Analysis of a model of the glucose-insulin regulatory system with two delays

Li, Jiaxu, Kuang, Yang·2007·SIAM Journal on Applied Mathematics

Abstract

We continue a recent attempt to better understand the glucose‐insulin regulatory system via a mathematical model of delay differential equations with two discrete time delays. With explicit delays, the model is more realistic in physiology, more accurate in mathematics, and more robust in applications. We study this model analytically and perform carefully designed numerical simulations by allowing two parameters to vary. Our analytical and numerical results confirm most current existing physiological observations and reveal more insightful information. The following factors are critical for ensuring the sustained oscillatory regulation and insulin secretion: (1) the time lag for insulin secretion stimulated by glucose and the newly synthesized insulin becoming “remote insulin” (Theorem 4.2 (b) and Theorem 5.6); (2) the delayed effect of hepatic glucose production (Theorem 4.2 (c) and Theorem 5.6); (3) moderate insulin clearance rate (Theorem 5.6 and simulations in section 6.4); and (4) nonoverwhelming glucose infusion (simulations in section 6.2, 6.3, and 6.4).

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Crossref · 10.1137/050634001

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  • Time delays are common in modeling the metabolic system.

    “Time delays, which are common in modeling the metabolic system (82–85), may induce uncertainty and make machine learning challenging to capture chaotic phenomena (86, 87).”

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Authors
Li, J., & Kuang, Y.
Affiliations
University of Louisville (US)
Venue
SIAM Journal on Applied Mathematics
Published
2007-01
Volume
67
Issue
3
Pages
757-776
ISSN
  • 0036-1399 (ISSN-L)
  • 1095-712X
OpenAlex
W2123658935
Cited by
96
References
25
Citations by year
2026: 9 · 2025: 6 · 2024: 4 · 2023: 5 · 2022: 6 · 2021: 4 · 2020: 10 · 2019: 8 · 2018: 6 · 2017: 3 · 2016: 5 · 2015: 7 · 2014: 6 · 2013: 3 · 2012: 1
FWCI
2.99
Type
journal article
Language
en
Open access
closed
Locations
SIAM Journal on Applied Mathematics (publishedVersion)
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Mathematical and Theoretical Epidemiology and Ecology Models
  • Physical Sciences › Mathematics › Applied Mathematics › Nonlinear Differential Equations Analysis
Keywords
glucose-insulin regulatory system, delay differential equations, insulin secretion, hepatic glucose production, glucose infusion

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