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Theoretical blood glucose control in hyper- and hypoglycemic and exercise scenarios by means of an H(infinity) algorithm.
J Theor Biol. 2010 Mar 07; 263(1):154-60.JT

Abstract

Artificial Endocrine Pancreas (AEP) is one of the most optimistic approaches in Type 1 Diabetes Mellitus (T1DM) treatment due to the novel technological advances in continuous glucose monitoring, exogenous insulin delivery, and their proofs in clinical assessments. The main goal of AEP is to replace the pancreatic insulin secretion in the blood glucose regulation loop by means of an automatic exogenous insulin infusion. The joint element between glucose sensing and insulin delivering actions is an automatic algorithm-based decision. In this contribution, there is an H(infinity) control algorithm to compute the insulin infusion rate during hyperglycemia, exercise and nocturnal hypoglycemia. In order to mimic the insulin release pattern of a healthy pancreas, a frequency restriction in the insulin infusion pattern generated by controller was considered in the design. The inclusion of mathematical models of relations between glucose and chosen biosignals in the control loop generates an adequate insulin infusion pattern to compensate blood glucose variations during each metabolic scenario. The proposed automatic algorithm for decision shows good performance in controlling glycemia in metabolic scenarios, avoiding long-term hyperglycemia as well as glycemic disturbances during exercise and nocturnal hypoglycemia, guaranteeing insulin infusion with a delivery pattern closer to that generated by a healthy pancreas.

Authors+Show Affiliations

Laboratorio para la Biodinámica y Sistemas Alineales, DMAp-IPICyT, Camino a la Presa de San José 2055, San Luis Potosí, SLP, Mexico. gquiroz@ipicyt.edu.mxNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19962391

Citation

Quiroz, G, and R Femat. "Theoretical Blood Glucose Control in Hyper- and Hypoglycemic and Exercise Scenarios By Means of an H(infinity) Algorithm." Journal of Theoretical Biology, vol. 263, no. 1, 2010, pp. 154-60.
Quiroz G, Femat R. Theoretical blood glucose control in hyper- and hypoglycemic and exercise scenarios by means of an H(infinity) algorithm. J Theor Biol. 2010;263(1):154-60.
Quiroz, G., & Femat, R. (2010). Theoretical blood glucose control in hyper- and hypoglycemic and exercise scenarios by means of an H(infinity) algorithm. Journal of Theoretical Biology, 263(1), 154-60. https://doi.org/10.1016/j.jtbi.2009.11.015
Quiroz G, Femat R. Theoretical Blood Glucose Control in Hyper- and Hypoglycemic and Exercise Scenarios By Means of an H(infinity) Algorithm. J Theor Biol. 2010 Mar 7;263(1):154-60. PubMed PMID: 19962391.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Theoretical blood glucose control in hyper- and hypoglycemic and exercise scenarios by means of an H(infinity) algorithm. AU - Quiroz,G, AU - Femat,R, Y1 - 2009/12/03/ PY - 2009/07/09/received PY - 2009/10/10/revised PY - 2009/11/18/accepted PY - 2009/12/8/entrez PY - 2009/12/8/pubmed PY - 2010/5/26/medline SP - 154 EP - 60 JF - Journal of theoretical biology JO - J Theor Biol VL - 263 IS - 1 N2 - Artificial Endocrine Pancreas (AEP) is one of the most optimistic approaches in Type 1 Diabetes Mellitus (T1DM) treatment due to the novel technological advances in continuous glucose monitoring, exogenous insulin delivery, and their proofs in clinical assessments. The main goal of AEP is to replace the pancreatic insulin secretion in the blood glucose regulation loop by means of an automatic exogenous insulin infusion. The joint element between glucose sensing and insulin delivering actions is an automatic algorithm-based decision. In this contribution, there is an H(infinity) control algorithm to compute the insulin infusion rate during hyperglycemia, exercise and nocturnal hypoglycemia. In order to mimic the insulin release pattern of a healthy pancreas, a frequency restriction in the insulin infusion pattern generated by controller was considered in the design. The inclusion of mathematical models of relations between glucose and chosen biosignals in the control loop generates an adequate insulin infusion pattern to compensate blood glucose variations during each metabolic scenario. The proposed automatic algorithm for decision shows good performance in controlling glycemia in metabolic scenarios, avoiding long-term hyperglycemia as well as glycemic disturbances during exercise and nocturnal hypoglycemia, guaranteeing insulin infusion with a delivery pattern closer to that generated by a healthy pancreas. SN - 1095-8541 UR - https://www.unboundmedicine.com/medline/citation/19962391/Theoretical_blood_glucose_control_in_hyper__and_hypoglycemic_and_exercise_scenarios_by_means_of_an_H_infinity__algorithm_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0022-5193(09)00557-8 DB - PRIME DP - Unbound Medicine ER -