Journal
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING
Volume 57, Issue 6, Pages 1173-1186Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11517-019-01950-x
Keywords
Cephalic phase; Neural modeling; Insulin secretion; Vagus nerve; Metabolic modeling
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Funding
- Rafael del Pino Foundation
- MINECO [DPI2013-46982-C2-1-R, DPI2016-78831-C2-1-R]
- FEDER funds
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The nervous system has a significant impact in glucose homeostasis and endocrine pancreatic secretion in humans, especially during the cephalic phase of insulin release (CPIR); that is, before a meal is absorbed. However, the underlying mechanisms of this neural-pancreatic interaction are not well understood and therefore often neglected, despite their significance to achieving an optimal glucose control. As a result, the dynamics of insulin release from the pancreas are currently described by mathematical models that reproduce the behavior of the cells using exclusively glucose levels and other hormones as inputs. To bridge this gap, we have combined, for the first time, metabolic and neural mathematical models in a unified system to reproduce to a great extent the ideal glucoregulation observed in healthy subjects. Our results satisfactorily replicate the CPIR and its impact during the post-absorptive phase. Furthermore, the proposed model gives insight into the physiological interaction between the brain and the pancreas in healthy people and suggests the potential of considering the neural information for restoring glucose control in people with diabetes.
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