Modelling of the Hypothalamic-Pituitary-Adrenal Axis Perturbations by Externally Induced Cholesterol Pulses of Finite Duration and with Asymmetrically Distributed Concentration Profile
Abstract
A model was developed that can be used to study the effect of gradual cholesterol intake by food on the HPA axis dynamics. Namely, well defined oscillatory dynamics of vital neuroendocrine hypothalamic-pituitary-adrenal (HPA) axis has proven to be necessary for maintaining regular basal physiology and formulating appropriate stress response to various types of perturbations. Cholesterol, as a precursor of all steroid HPA axis hormones, can alter the dynamics of HPA axis. To analyse its particular influence on the HPA axis dynamics we used stoichiometric model of HPA axis activity, and simulate cholesterol perturbations in the form of finite duration pulses, with asymmetrically distributed concentration profile. Our numerical simulations showed that there is a complex, nonlinear dependence between the HPA axis responsiveness and different forms of applied cholesterol concentration pulses, indicating the significance of kinetic modelling, and dynamical systems theory for the understandin...g of large-scale self-regulatory, and homeostatic processes within this neuroendocrine system.
Keywords:
oscillatory processes / kinetics of complex reaction systems / nonlinear dynamics / modelling of cholesterol perturbations / hypothalamic / pituitary-adrenal axis / statinsSource:
Russian Journal of Physical Chemistry A, 2017, 91, 13, 2600-2607Publisher:
- Maik Nauka/Interperiodica/Springer, New York
Projects:
- Dynamics of nonlinear physicochemical and biochemical systems with modeling and predicting of their behavior under nonequilibrium conditions (RS-172015)
- Nanostructured Functional and Composite Materials in Catalytic and Sorption Processes (RS-45001)
- CMST COST Action Emergence and Evolution of Complex Chemical Systems - CM1304
- Karolinska Institute Research Funds
- Swedish Research Council
DOI: 10.1134/S0036024417130027
ISSN: 0036-0244
WoS: 000425149900016
Scopus: 2-s2.0-85040143595
Collections
Institution
IHTMTY - JOUR AU - Stanojevic, A. AU - Markovic, V. M. AU - Čupić, Željko AU - Vukojevic, V. AU - Kolar-Anić, Ljiljana PY - 2017 UR - http://cer.ihtm.bg.ac.rs/handle/123456789/2254 AB - A model was developed that can be used to study the effect of gradual cholesterol intake by food on the HPA axis dynamics. Namely, well defined oscillatory dynamics of vital neuroendocrine hypothalamic-pituitary-adrenal (HPA) axis has proven to be necessary for maintaining regular basal physiology and formulating appropriate stress response to various types of perturbations. Cholesterol, as a precursor of all steroid HPA axis hormones, can alter the dynamics of HPA axis. To analyse its particular influence on the HPA axis dynamics we used stoichiometric model of HPA axis activity, and simulate cholesterol perturbations in the form of finite duration pulses, with asymmetrically distributed concentration profile. Our numerical simulations showed that there is a complex, nonlinear dependence between the HPA axis responsiveness and different forms of applied cholesterol concentration pulses, indicating the significance of kinetic modelling, and dynamical systems theory for the understanding of large-scale self-regulatory, and homeostatic processes within this neuroendocrine system. PB - Maik Nauka/Interperiodica/Springer, New York T2 - Russian Journal of Physical Chemistry A T1 - Modelling of the Hypothalamic-Pituitary-Adrenal Axis Perturbations by Externally Induced Cholesterol Pulses of Finite Duration and with Asymmetrically Distributed Concentration Profile VL - 91 IS - 13 SP - 2600 EP - 2607 DO - 10.1134/S0036024417130027 ER -
@article{ author = "Stanojevic, A. and Markovic, V. M. and Čupić, Željko and Vukojevic, V. and Kolar-Anić, Ljiljana", year = "2017", url = "http://cer.ihtm.bg.ac.rs/handle/123456789/2254", abstract = "A model was developed that can be used to study the effect of gradual cholesterol intake by food on the HPA axis dynamics. Namely, well defined oscillatory dynamics of vital neuroendocrine hypothalamic-pituitary-adrenal (HPA) axis has proven to be necessary for maintaining regular basal physiology and formulating appropriate stress response to various types of perturbations. Cholesterol, as a precursor of all steroid HPA axis hormones, can alter the dynamics of HPA axis. To analyse its particular influence on the HPA axis dynamics we used stoichiometric model of HPA axis activity, and simulate cholesterol perturbations in the form of finite duration pulses, with asymmetrically distributed concentration profile. Our numerical simulations showed that there is a complex, nonlinear dependence between the HPA axis responsiveness and different forms of applied cholesterol concentration pulses, indicating the significance of kinetic modelling, and dynamical systems theory for the understanding of large-scale self-regulatory, and homeostatic processes within this neuroendocrine system.", publisher = "Maik Nauka/Interperiodica/Springer, New York", journal = "Russian Journal of Physical Chemistry A", title = "Modelling of the Hypothalamic-Pituitary-Adrenal Axis Perturbations by Externally Induced Cholesterol Pulses of Finite Duration and with Asymmetrically Distributed Concentration Profile", volume = "91", number = "13", pages = "2600-2607", doi = "10.1134/S0036024417130027" }
Stanojevic A, Markovic VM, Čupić Ž, Vukojevic V, Kolar-Anić L. Modelling of the Hypothalamic-Pituitary-Adrenal Axis Perturbations by Externally Induced Cholesterol Pulses of Finite Duration and with Asymmetrically Distributed Concentration Profile. Russian Journal of Physical Chemistry A. 2017;91(13):2600-2607
Stanojevic, A., Markovic, V. M., Čupić, Ž., Vukojevic, V.,& Kolar-Anić, L. (2017). Modelling of the Hypothalamic-Pituitary-Adrenal Axis Perturbations by Externally Induced Cholesterol Pulses of Finite Duration and with Asymmetrically Distributed Concentration Profile. Russian Journal of Physical Chemistry AMaik Nauka/Interperiodica/Springer, New York., 91(13), 2600-2607. https://doi.org/10.1134/S0036024417130027
Stanojevic A., Markovic V. M., Čupić Željko, Vukojevic V., Kolar-Anić Ljiljana, "Modelling of the Hypothalamic-Pituitary-Adrenal Axis Perturbations by Externally Induced Cholesterol Pulses of Finite Duration and with Asymmetrically Distributed Concentration Profile" 91, no. 13 (2017):2600-2607, https://doi.org/10.1134/S0036024417130027 .