Russian Journal of Physical Chemistry A

, Volume 91, Issue 13, pp 2600–2607 | Cite as

Modelling of the Hypothalamic-Pituitary-Adrenal Axis Perturbations by Externally Induced Cholesterol Pulses of Finite Duration and with Asymmetrically Distributed Concentration Profile

  • A. Stanojević
  • V. M. Marković
  • Ž. Čupić
  • V. Vukojević
  • L. Kolar-Anić
Structure of Matter and Quantum Chemistry

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.

Keywords

oscillatory processes kinetics of complex reaction systems nonlinear dynamics modelling of cholesterol perturbations hypothalamic-pituitary-adrenal axis statins 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • A. Stanojević
    • 1
  • V. M. Marković
    • 1
  • Ž. Čupić
    • 2
  • V. Vukojević
    • 3
  • L. Kolar-Anić
    • 1
    • 2
  1. 1.Faculty of Physical ChemistryUniversity of BelgradeBelgradeSerbia
  2. 2.Institute of Chemistry, Technology and Metallurgy, Department of Catalysis and Chemical EngineeringUniversity of BelgradeBelgradeSerbia
  3. 3.Karolinska Institutet, Department of Clinical NeuroscienceStockholmSweden

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