Closed-Loop Modeling of Central and Intrinsic Cardiac Nervous System Circuits Underlying Cardiovascular Control
The baroreflex is a multi-input, multi-output physiological control system that regulates blood pressure by modulating nerve activity between the brainstem and the heart. Existing computational models of the baroreflex do not explicitly incorporate the intrinsic cardiac nervous system (ICN), which mediates central control of heart function. We developed a computational model of closed-loop cardiovascular control by integrating a network representation of the ICN within central control reflex circuits. We examined central and local contributions to the control of heart rate, ventricular functions, and respiratory sinus arrhythmia (RSA). Our simulations match the experimentally observed relationship between RSA and lung tidal volume. Our simulations predicted the relative contributions of the sensory and the motor neuron pathways to the experimentally observed changes in the heart rate. Our closed-loop cardiovascular control model is primed for evaluating bioelectronic interventions to treat heart failure and renormalize cardiovascular physiology.
Gee, Michelle M.; Lenhoff, Abraham M.; Schwaber, James S.; Ogunnaike, Babatunde A.; and Vadigepalli, Rajanikanth, "Closed-Loop Modeling of Central and Intrinsic Cardiac Nervous System Circuits Underlying Cardiovascular Control" (2023). Department of Pathology, Anatomy, and Cell Biology Faculty Papers. Paper 384.
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Circulatory and Respiratory Physiology Commons, Musculoskeletal, Neural, and Ocular Physiology Commons
This article is the author's final published version in AIChE Journal, Volume 69, Issue 4, April 2023, Article number e18033.
The published version is available at https://doi.org/10.1002/aic.18033. Copyright © 2023 The Authors. AIChE Journal published by Wiley Periodicals LLC on behalf of American Institute of Chemical Engineers.