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Zhu X, Zhao Y, Li L, Liu J, Huang Q, Wang S, Shu Y. Association of non-HDL-C and depression: a cross-sectional analysis of the NHANES data. Front Psychiatry 2023; 14:1274648. [PMID: 37928909 PMCID: PMC10623352 DOI: 10.3389/fpsyt.2023.1274648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/26/2023] [Indexed: 11/07/2023] Open
Abstract
Objectives Non-high-density lipoprotein cholesterol (non-HDL-C) has attracted attention because it is associated with a variety of diseases and is easy to measure. However, the relationship between non-HDL-C and depression is still unclear. Our aim was to assess the relationship between non-HDL-C and depression using the cross-sectional NHANES survey from 2005 to 2018. Methods We examined the association between non-HDL-C and depression using weighted multivariable logistic regression models and subgroup analysis. Sensitivity analysis demonstrated the robustness of the results. Results There were 42,143 participants in this study and 8.6% had depression (weighted 7.53%). Non-HDL-C was higher in participants with depression compared to those without depression (weighted mean 3.64 vs. 3.73, p < 0.01). There was a positive association between non-HDL-C and depression with a 95% OR of 1.22 adjusted for multifactorial (95% CI,1.03-1.45). In subgroup analyses, non-HDL-C was positively associated with depression in men (OR, 1.31; 95% CI, 1.01-1.70), normal BMI (OR: 0.93; 95% CI: 0.66-1.32) and in participants without hypertension (OR, 1.29; 95% CI, 1.01-1.66). Conclusion Non-HDL-C positively correlated with depression, and further research may be better for clinical service.
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Affiliation(s)
- Xianlin Zhu
- Department of Clinical Psychology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Yiwen Zhao
- Department of Psychiatry, Linhai Kangning Hospital, Linhai, China
| | - Lu Li
- Department of Psychiatry, Linhai Kangning Hospital, Linhai, China
| | - Jiaoying Liu
- Graduate School of Zunyi Medical University, Zunyi Medical University, Zunyi, China
- Department of Psychiatry of Women and Children, The Second People's Hospital of Guizhou Province, Guivang, China
| | - Qiankun Huang
- Department of Psychology, Yichang Mental Health Center, Yichang, China
| | - Suhong Wang
- Department of Clinical Psychology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Yanping Shu
- Department of Psychiatry of Women and Children, The Second People's Hospital of Guizhou Province, Guivang, China
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Kolar-Anić L, Čupić Ž, Maćešić S, Ivanović-Šašić A, Dietrich JW. Modelling of the thyroid hormone synthesis as a part of nonlinear reaction mechanism with feedback. Comput Biol Med 2023; 160:106980. [PMID: 37141650 DOI: 10.1016/j.compbiomed.2023.106980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 04/04/2023] [Accepted: 04/23/2023] [Indexed: 05/06/2023]
Abstract
The synthesis of thyroid hormones in the hypothalamic-pituitary-thyroid (HPT) axis was studied. For this purpose, a reaction model for HPT axis with stoichiometric relations between the main reaction species was postulated. Using the law of mass action, this model has been transformed into a set of nonlinear ordinary differential equations. This new model has been examined by stoichiometric network analysis (SNA) with the aim to see if it possesses the ability to reproduce oscillatory ultradian dynamics founded on the internal feedback mechanism. In particular, a feedback regulation of TSH production based on the interplay between TRH, TSH, somatostatin and thyroid hormones was proposed. Besides, the ten times larger amount of produced T4 with respect to T3 in the thyroid gland was successfully simulated. The properties of SNA in combination with experimental results, were used to determine the unknown parameters (19 rate constants of particular reaction steps) necessary for numerical investigations. The steady-state concentrations of 15 reactive species were tuned to be consistent with the experimental data. The predictive potential of the proposed model was illustrated on numerical simulations of somatostatin influence on TSH dynamics investigated experimentally by Weeke et al. in 1975. In addition, all programs for SNA analysis were adapted for this kind of a large model. The procedure of calculating rate constants from steady-state reaction rates and very limited available experimental data was developed. For this purpose, a unique numerical method was developed to fine-tune model parameters while preserving the fixed rate ratios and using the magnitude of the experimentally known oscillation period as the only target value. The postulated model was numerically validated by perturbation simulations with somatostatin infusion and the results were compared with experiments available in literature. Finally, as far as we know, this reaction model with 15 variables is the most dimensional one that have been analysed mathematically to obtain instability region and oscillatory dynamic states. Among the existing models of thyroid homeostasis this theory represents a new class that may improve our understanding of basic physiological processes and helps to develop new therapeutic approaches. Additionally, it may pave the way to improved diagnostic methods for pituitary and thyroid disorders.
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Affiliation(s)
| | - Željko Čupić
- University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department of Catalysis and Chemical Engineering, Serbia.
| | - Stevan Maćešić
- University of Belgrade, Faculty of Physical Chemistry, Serbia
| | - Ana Ivanović-Šašić
- University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department of Catalysis and Chemical Engineering, Serbia
| | - Johannes W Dietrich
- Diabetes, Endocrinology and Metabolism Section, Department of Internal Medicine I, St. Josef Hospital, Ruhr University Bochum, Bochum, NRW, Germany; Diabetes Centre Bochum/Hattingen, St. Elisabeth Hospital Blankenstein, Hattingen, NRW, Germany; Centre for Rare Endocrine Diseases, Ruhr Centre for Rare Diseaeses (CeSER), Ruhr University of Bochum and Witten/Herdecke University, Bochum, NRW, Germany; Centre for Diabetes Technology, Catholic Hospitals Bochum, Hattingen, NRW, Germany
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Grindstaff JL, Beaty LE, Ambardar M, Luttbeg B. Integrating theoretical and empirical approaches for a robust understanding of endocrine flexibility. J Exp Biol 2022; 225:274311. [PMID: 35258612 PMCID: PMC8987727 DOI: 10.1242/jeb.243408] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
There is growing interest in studying hormones beyond single 'snapshot' measurements, as recognition that individual variation in the endocrine response to environmental change may underlie many rapid, coordinated phenotypic changes. Repeated measures of hormone levels in individuals provide additional insight into individual variation in endocrine flexibility - that is, how individuals modulate hormone levels in response to the environment. The ability to quickly and appropriately modify phenotype is predicted to be favored by selection, especially in unpredictable environments. The need for repeated samples from individuals can make empirical studies of endocrine flexibility logistically challenging, but methods based in mathematical modeling can provide insights that circumvent these challenges. Our Review introduces and defines endocrine flexibility, reviews existing studies, makes suggestions for future empirical work, and recommends mathematical modeling approaches to complement empirical work and significantly advance our understanding. Mathematical modeling is not yet widely employed in endocrinology, but can be used to identify innovative areas for future research and generate novel predictions for empirical testing.
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Affiliation(s)
| | - Lynne E Beaty
- School of Science, Penn State Erie - The Behrend College, Erie, PA 16563, USA
| | - Medhavi Ambardar
- Department of Biological Sciences, Fort Hays State University, Hays, KS 67601, USA
| | - Barney Luttbeg
- Department of Integrative Biology, Oklahoma State University, OK 74078, USA
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Stojiljković AS, Čupić Ž, Maćešić S, Ivanović-Šašić A, Kolar-Anić L. Influence of arginine vasopressin on the ultradian dynamics of Hypothalamic-Pituitary-Adrenal axis. Front Endocrinol (Lausanne) 2022; 13:976323. [PMID: 36277700 PMCID: PMC9581400 DOI: 10.3389/fendo.2022.976323] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 09/09/2022] [Indexed: 11/22/2022] Open
Abstract
Numerous studies on humans and animals have indicated that the corticotrophin-releasing hormone (CRH) and arginine vasopressin (AVP) stimulate both individually and synergistically secretion of adrenocorticotropic hormone (ACTH) by corticotropic cells in anterior pituitary. With aim to characterize and better comprehend the mechanisms underlying the effects of AVP on Hypothalamic-Pituitary-Adrenal (HPA) axis ultradian dynamics, AVP is here incorporated into our previously proposed stoichiometric model of HPA axis in humans. This extended nonlinear network reaction model took into account AVP by: reaction steps associated with two separate inflows of AVP into pituitary portal system, that is synthesized and released from hypothalamic parvocellular and magnocellular neuronal populations, as well as summarized reaction steps related to its individual and synergistic action with CRH on corticotropic cells. To explore the properties of extended model and its capacity to emulate the effects of AVP, nonlinear dynamical systems theory and bifurcation analyses based on numerical simulations were utilized to determine the dependence of ultradian oscillations on rate constants of the inflows of CRH and AVP from parvocellular neuronal populations, the conditions under which dynamical transitions occur due to their synergistic action and, moreover, the types of these transitions. The results show that under certain conditions, HPA system could enter into oscillatory dynamic states from stable steady state and vice versa under the influence of synergy reaction rate constant. Transitions between these dynamical states were always through supercritical Andronov-Hopf bifurcation point. Also, results revealed the conditions under which amplitudes of ultradian oscillations could increase several-fold due to CRH and AVP synergistic stimulation of ACTH secretion in accordance with results reported in the literature. Moreover, results showed experimentally observed superiority of CRH as a stimulator of ACTH secretion compared to AVP in humans. The proposed model can be very useful in studies related to the role of AVP and its synergistic action with CRH in life-threatening circumstances such as acute homeostasis dynamic crisis, autoimmune inflammations or severe hypovolemia requiring instant or several-days sustained corticosteroid excess levels. Moreover, the model can be helpful for investigations of indirect AVP-induced HPA activity by exogenously administered AVP used in therapeutic treatment.
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Affiliation(s)
- Aleksandra S. Stojiljković
- Institute of General and Physical Chemistry, University of Belgrade, Belgrade, Serbia
- *Correspondence: Aleksandra S. Stojiljković, ; Željko Čupić,
| | - Željko Čupić
- Institute of Chemistry, Technology and Metallurgy, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
- *Correspondence: Aleksandra S. Stojiljković, ; Željko Čupić,
| | - Stevan Maćešić
- Faculty of Physical Chemistry, University of Belgrade, Belgrade, Serbia
| | - Ana Ivanović-Šašić
- Institute of Chemistry, Technology and Metallurgy, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Ljiljana Kolar-Anić
- Institute of Chemistry, Technology and Metallurgy, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
- Faculty of Physical Chemistry, University of Belgrade, Belgrade, Serbia
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Maćešić S, Tóth Á, Horváth D. Origins of oscillatory dynamics in the model of reactive oxygen species in the rhizosphere. J Chem Phys 2021; 155:175102. [PMID: 34742207 DOI: 10.1063/5.0062139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Oscillatory processes are essential for normal functioning and survival of biological systems, and reactive oxygen species have a prominent role in many of them. A mechanism representing the dynamics of these species in the rhizosphere is analyzed using stoichiometric network analysis with the aim to determine its capabilities to simulate various dynamical states, including oscillations. A detailed analysis has shown that unstable steady states result from four destabilizing feedback cycles, among which the cycle involving hydroquinone, an electron acceptor, and its semi-reduced form is the dominant one responsible for the existence of saddle-node and Andronov-Hopf bifurcations. This requires a higher steady-state concentration for the reduced electron acceptor compared to that of the remaining species, where the level of oxygen steady-state concentration determines whether the Andronov-Hopf or saddle-node bifurcation will occur.
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Affiliation(s)
- Stevan Maćešić
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, 6720 Szeged, Hungary
| | - Ágota Tóth
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, 6720 Szeged, Hungary
| | - Dezső Horváth
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, 6720 Szeged, Hungary
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Zhang LL, Yang ZY, Fan G, Ren JN, Yin KJ, Pan SY. Antidepressant-like Effect of Citrus sinensis (L.) Osbeck Essential Oil and Its Main Component Limonene on Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:13817-13828. [PMID: 30905156 DOI: 10.1021/acs.jafc.9b00650] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The present study investigated the antidepressant-like effects of navel orange [Citrus sinensis (L.) Osbeck] essential oil (OEO) and its main components using the chronic unpredictable mild stress (CUMS) model mice and explored its possible mechanisms. The results indicated that OEO inhalation significantly ameliorated the depression-like behaviors of CUMS mice with decreased body weight, sucrose preference, curiosity, and mobility as well as shortened immobile time and attenuated dyslipidemia. Limonene was the most abundant compound in the sniffing OEO environment and mice brain after sniffing, and it was not metabolized immediately in the brain. In addition, limonene inhalation significantly restored CUMS-induced depressive behavior, hyperactivity of hypothalamic-pituitary-adrenal axis, and the decrease of monoamine neurotransmitter levels, with downregulation of brain-derived neurotrophic factor and its receptor expression in the hippocampus. Thus, the study indicates that the improvements in neuroendocrine, neurotrophic, and monoaminergic systems are related to the antidepressant effects of limonene.
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Affiliation(s)
- Lu-Lu Zhang
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology , Huazhong Agricultural University , 1 Shizishan Street , Hongshan District, Wuhan , Hubei 430070 , People's Republic of China
| | - Zi-Yu Yang
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology , Huazhong Agricultural University , 1 Shizishan Street , Hongshan District, Wuhan , Hubei 430070 , People's Republic of China
| | - Gang Fan
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology , Huazhong Agricultural University , 1 Shizishan Street , Hongshan District, Wuhan , Hubei 430070 , People's Republic of China
| | - Jing-Nan Ren
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology , Huazhong Agricultural University , 1 Shizishan Street , Hongshan District, Wuhan , Hubei 430070 , People's Republic of China
| | - Kai-Jing Yin
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology , Huazhong Agricultural University , 1 Shizishan Street , Hongshan District, Wuhan , Hubei 430070 , People's Republic of China
| | - Si-Yi Pan
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology , Huazhong Agricultural University , 1 Shizishan Street , Hongshan District, Wuhan , Hubei 430070 , People's Republic of China
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Stanojević A, Marković VM, Čupić Ž, Kolar-Anić L, Vukojević V. Advances in mathematical modelling of the hypothalamic–pituitary–adrenal (HPA) axis dynamics and the neuroendocrine response to stress. Curr Opin Chem Eng 2018. [DOI: 10.1016/j.coche.2018.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Čupić Ž, Maćešić S, Novakovic K, Anić S, Kolar-Anić L. Stoichiometric network analysis of a reaction system with conservation constraints. CHAOS (WOODBURY, N.Y.) 2018; 28:083114. [PMID: 30180608 DOI: 10.1063/1.5026791] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 07/26/2018] [Indexed: 06/08/2023]
Abstract
Stoichiometric Network Analysis (SNA) is a powerful method that can be used to examine instabilities in modelling a broad range of reaction systems without knowing the explicit values of reaction rate constants. Due to a lack of understanding, SNA is rarely used and its full potential is not yet fulfilled. Using the oscillatory carbonylation of a polymeric substrate [poly(ethylene glycol)methyl ether acetylene] as a case study, in this work, we consider two mathematical methods for the application of SNA to the reaction models when conservation constraints between species have an important role. The first method takes conservation constraints into account and uses only independent intermediate species, while the second method applies to the full set of intermediate species, without the separation of independent and dependent variables. Both methods are used for examination of steady state stability by means of a characteristic polynomial and related Jacobian matrix. It was shown that both methods give the same results. Therefore, as the second method is simpler, we suggest it as a more straightforward method for the applications.
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Affiliation(s)
- Željko Čupić
- Centre of Catalysis and Chemical Engineering, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
| | - Stevan Maćešić
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12, 11000 Belgrade, Serbia
| | - Katarina Novakovic
- School of Engineering, Newcastle University, Merz Court, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Slobodan Anić
- Centre of Catalysis and Chemical Engineering, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
| | - Ljiljana Kolar-Anić
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12, 11000 Belgrade, Serbia
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Stanojević A, Marković VM, Čupić Ž, Vukojević 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 2018. [DOI: 10.1134/s0036024417130027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Anić SR, Čupić ŽD. Dynamics and kinetics of complex reaction systems. Contributions of the Professor emeritus Ljiljana Kolar-Anić. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-017-1290-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Vries GJD, Mocking R, Assies J, Schene A, Olff M. Plasma lipoproteins in posttraumatic stress disorder patients compared to healthy controls and their associations with the HPA- and HPT-axis. Psychoneuroendocrinology 2017; 86:209-217. [PMID: 28987899 DOI: 10.1016/j.psyneuen.2017.09.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 09/25/2017] [Accepted: 09/26/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND Based on studies among primarily male veteran subjects, lipoproteins are thought to mediate the association of posttraumatic stress disorder (PTSD) with cardiovascular disease (CVD). However, recent civilian studies with female samples or samples with both sexes represented provide little evidence for this association. Gender, diet and sex-specific effects of stress hormones on lipoproteins may explain this dissociation in findings. METHOD Cross-sectional analysis of plasma concentrations of total cholesterol (TC), low-density lipoprotein (LDL), high-density lipoprotein (HDL) and triglycerides (TG) in a male and female sample of 49 PTSD-patients due to civilian trauma and 45 healthy controls. Second, we related these lipoproteins to several stress hormones (prolactin, cortisol, DHEA(S), TSH, T4). RESULTS Patients showed lower LDL (p=0.033) and LDL:HDL ratio (p=0.038) compared to controls, also when adjusting for diet. Sex influenced the effect of having PTSD on LDL with only male patients having lower values than male controls (p=0.012). All stress hormones were associated with several lipoproteins, mostly in a sex-dependent manner. For LDL, a significant sex-by-cortisol effect (p<0.001), having PTSD-by-sex-by-DHEA (p<0.001), having PTSD-by-sex-by-DHEAS (p=0.016) and having PTSD-by-sex-by-prolactin (p=0.003) was found. CONCLUSION In this male and female civilian sample we found a somewhat more favorable lipoprotein profile in PTSD-patients in contrast to evidence from strictly male veteran samples exhibiting a less favorable lipoprotein profile. Male patients did not exhibit a worse lipoprotein profile than female patients and therefore gender cannot explain the contradiction in evidence. Additionally, we found that PTSD-related stress hormones are associated with lipoproteins levels in patients in a sex-specific manner. Specific configurations of stress hormones may contribute to CVD in male patients or protect in female patients. Further research on these configurations could indicate which PTSD-patients are especially at risk for CVD and which are not. This could guide future precision medicine efforts to prevent and treat the still growing burden of CVD morbidity and mortality in PTSD.
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Affiliation(s)
- Giel-Jan de Vries
- Department of Psychiatry, Academic Medical Centre, Amsterdam, The Netherlands
| | - Roel Mocking
- Department of Psychiatry, Academic Medical Centre, Amsterdam, The Netherlands
| | - Johanna Assies
- Department of Psychiatry, Academic Medical Centre, Amsterdam, The Netherlands
| | - Aart Schene
- Department of Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, The Netherlands
| | - Miranda Olff
- Department of Psychiatry, Academic Medical Centre, Amsterdam, The Netherlands; Arq Psychotrauma Expert group, Diemen, The Netherlands.
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Stanojević A, Marković VM, Maćešić S, Kolar-Anić L, Vukojević V. Kinetic modelling of testosterone-related differences in the hypothalamic–pituitary–adrenal axis response to stress. REACTION KINETICS MECHANISMS AND CATALYSIS 2017. [DOI: 10.1007/s11144-017-1315-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Čupić Ž, Stanojević A, Marković VM, Kolar-Anić L, Terenius L, Vukojević V. The HPA axis and ethanol: a synthesis of mathematical modelling and experimental observations. Addict Biol 2017; 22:1486-1500. [PMID: 27189379 DOI: 10.1111/adb.12409] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 03/24/2016] [Accepted: 04/11/2016] [Indexed: 12/21/2022]
Abstract
Stress and alcohol use are interrelated-stress contributes to the initiation and upholding of alcohol use and alcohol use alters the way we perceive and respond to stress. Intricate mechanisms through which ethanol alters the organism's response to stress remain elusive. We have developed a stoichiometric network model to succinctly describe neurochemical transformations underlying the stress response axis and use numerical simulations to model ethanol effects on complex daily changes of blood levels of cholesterol, 6 peptide and 8 steroid hormones. Modelling suggests that ethanol alters the dynamical regulation of hypothalamic-pituitary-adrenal (HPA) axis activity by affecting the amplitude of ultradian oscillations of HPA axis hormones, which defines the threshold with respect to which the response to stress is being set. These effects are complex-low/moderate acute ethanol challenge (<8 mM) may reduce, leave unaltered or increase the amplitude of ultradian cortisol (CORT) oscillations, giving rise to an intricate response at the organism level, offering also a potential explanation as to why apparently discordant results were observed in experimental studies. In contrast, high-dose acute ethanol challenge (>8 mM) increases instantaneous CORT levels and the amplitude of ultradian CORT oscillations in a dose-dependent manner, affecting the HPA axis activity also during the following day(s). Chronic exposure to ethanol qualitatively changes the HPA axis dynamics, whereas ethanol at intoxicating levels shuts down this dynamic regulation mechanism. Mathematical modelling gives a quantitative biology-based framework that can be used for predicting how the integral HPA axis response is perturbed by alcohol.
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Affiliation(s)
- Željko Čupić
- Institute of Chemistry, Technology and Metallurgy, Department of Catalysis and Chemical Engineering; University of Belgrade; Belgrade Serbia
| | - Ana Stanojević
- Faculty of Physical Chemistry; University of Belgrade; Belgrade Serbia
| | | | - Ljiljana Kolar-Anić
- Institute of Chemistry, Technology and Metallurgy, Department of Catalysis and Chemical Engineering; University of Belgrade; Belgrade Serbia
- Faculty of Physical Chemistry; University of Belgrade; Belgrade Serbia
| | - Lars Terenius
- Department of Clinical Neuroscience, Center for Molecular Medicine; Karolinska Institutet; Stockholm Sweden
| | - Vladana Vukojević
- Department of Clinical Neuroscience, Center for Molecular Medicine; Karolinska Institutet; Stockholm Sweden
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Abulseoud OA, Ho MC, Choi DS, Stanojević A, Čupić Ž, Kolar-Anić L, Vukojević V. Corticosterone oscillations during mania induction in the lateral hypothalamic kindled rat-Experimental observations and mathematical modeling. PLoS One 2017; 12:e0177551. [PMID: 28542167 PMCID: PMC5436765 DOI: 10.1371/journal.pone.0177551] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 04/28/2017] [Indexed: 01/03/2023] Open
Abstract
Changes in the hypothalamic-pituitary-adrenal (HPA) axis activity constitute a key component of bipolar mania, but the extent and nature of these alterations are not fully understood. We use here the lateral hypothalamic-kindled (LHK) rat model to deliberately induce an acute manic-like episode and measure serum corticosterone concentrations to assess changes in HPA axis activity. A mathematical model is developed to succinctly describe the entwined biochemical transformations that underlay the HPA axis and emulate by numerical simulations the considerable increase in serum corticosterone concentration induced by LHK. Synergistic combination of the LHK rat model and dynamical systems theory allows us to quantitatively characterize changes in HPA axis activity under controlled induction of acute manic-like states and provides a framework to study in silico how the dynamic integration of neurochemical transformations underlying the HPA axis is disrupted in these states.
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Affiliation(s)
- Osama A. Abulseoud
- Department of Psychiatry and Psychology; Mayo Clinic, Rochester, Minnesota, United States of America
- Chemistry and Drug Metabolism, IRP, National Institute on Drug Abuse, National Institutes of Health, Baltimore, Maryland, United States of America
| | - Man Choi Ho
- Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Doo-Sup Choi
- Department of Psychiatry and Psychology; Mayo Clinic, Rochester, Minnesota, United States of America
- Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Ana Stanojević
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12–16, Belgrade, Serbia
| | - Željko Čupić
- University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department of Catalysis and Chemical Engineering, Njegoševa 12, Belgrade, Serbia
| | - Ljiljana Kolar-Anić
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12–16, Belgrade, Serbia
- University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department of Catalysis and Chemical Engineering, Njegoševa 12, Belgrade, Serbia
| | - Vladana Vukojević
- Karolinska Institute, Department of Clinical Neuroscience, Center for Molecular Medicine CMM L8:01, Stockholm, Sweden
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Bubanja IN, Maćešić S, Ivanović-Šašić A, Čupić Ž, Anić S, Kolar-Anić L. Intermittent chaos in the Bray-Liebhafsky oscillator. Temperature dependence. Phys Chem Chem Phys 2016; 18:9770-8. [PMID: 27001164 DOI: 10.1039/c6cp00759g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Intermittent oscillations as a chaotic mixture of large amplitude relaxation oscillations, grouped in bursts and small-amplitude sinusoidal ones or even quiescent parts between them known as gaps, were found and examined in the Bray-Liebhafsky (BL) reaction performed in CSTR under controlled temperature variations. They were obtained in a narrow temperature range from 61.0 °C to 63.1 °C, where 61.0 °C is the critical temperature for burst emergence from the stable steady state and 63.1 °C is the critical temperature for gap emergence from regular oscillations. Since intermittencies appear gradually from the regular oscillatory state, and no hysteresis was obtained with decreasing/increasing temperature in the vicinity of these two bifurcations, a linear relationship between (τB/τ)(2) and (τG/τ)(2) (where τB, τG and τ denotes duration of bursts, gaps, and whole experiment, respectively), as a function of the temperature as the control parameter, was expected and obtained. Although these intermittent oscillations are chaotic with respect to the lengths of individual gaps as well as bursts, their deterministic behavior related to temperature was additionally established. Thus, the number of bursts or gaps per unit of time (NB/τ and NG/τ) has the form of a normal distribution function over the temperature range in the region where intermittencies are obtained. Temperature dependence of the Lyapunov exponents was also described by a function of the normal distribution form. Hence, we established some regularities in the chaotic behavior of intermittent oscillations that are common in life but difficult for determinations.
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Affiliation(s)
- I N Bubanja
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12 - 16, RS-11000 Belgrade.
| | - S Maćešić
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12 - 16, RS-11000 Belgrade.
| | - A Ivanović-Šašić
- Institute of Chemistry, Technology and Metallurgy, Center of Catalysis and Chemical Engineering, University of Belgrade, Njegoševa 12, RS-11000 Belgrade
| | - Ž Čupić
- Institute of Chemistry, Technology and Metallurgy, Center of Catalysis and Chemical Engineering, University of Belgrade, Njegoševa 12, RS-11000 Belgrade
| | - S Anić
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12 - 16, RS-11000 Belgrade. and Institute of Chemistry, Technology and Metallurgy, Center of Catalysis and Chemical Engineering, University of Belgrade, Njegoševa 12, RS-11000 Belgrade
| | - Lj Kolar-Anić
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12 - 16, RS-11000 Belgrade. and Institute of Chemistry, Technology and Metallurgy, Center of Catalysis and Chemical Engineering, University of Belgrade, Njegoševa 12, RS-11000 Belgrade
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16
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Čupić Ž, Marković VM, Maćešić S, Stanojević A, Damjanović S, Vukojević V, Kolar-Anić L. Dynamic transitions in a model of the hypothalamic-pituitary-adrenal axis. CHAOS (WOODBURY, N.Y.) 2016; 26:033111. [PMID: 27036189 DOI: 10.1063/1.4944040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Dynamic properties of a nonlinear five-dimensional stoichiometric model of the hypothalamic-pituitary-adrenal (HPA) axis were systematically investigated. Conditions under which qualitative transitions between dynamic states occur are determined by independently varying the rate constants of all reactions that constitute the model. Bifurcation types were further characterized using continuation algorithms and scale factor methods. Regions of bistability and transitions through supercritical Andronov-Hopf and saddle loop bifurcations were identified. Dynamic state analysis predicts that the HPA axis operates under basal (healthy) physiological conditions close to an Andronov-Hopf bifurcation. Dynamic properties of the stress-control axis have not been characterized experimentally, but modelling suggests that the proximity to a supercritical Andronov-Hopf bifurcation can give the HPA axis both, flexibility to respond to external stimuli and adjust to new conditions and stability, i.e., the capacity to return to the original dynamic state afterwards, which is essential for maintaining homeostasis. The analysis presented here reflects the properties of a low-dimensional model that succinctly describes neurochemical transformations underlying the HPA axis. However, the model accounts correctly for a number of experimentally observed properties of the stress-response axis. We therefore regard that the presented analysis is meaningful, showing how in silico investigations can be used to guide the experimentalists in understanding how the HPA axis activity changes under chronic disease and/or specific pharmacological manipulations.
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Affiliation(s)
- Željko Čupić
- Department of Catalysis and Chemical Engineering, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
| | - Vladimir M Marković
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia
| | - Stevan Maćešić
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia
| | - Ana Stanojević
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia
| | - Svetozar Damjanović
- Institute of Endocrinology, Diabetes and Metabolic Diseases, School of Medicine, University of Belgrade, Dr Subotica 13, 11000 Belgrade, Serbia
| | - Vladana Vukojević
- Department of Clinical Neuroscience, Karolinska Institutet, CMM L8:01, 17176 Stockholm, Sweden
| | - Ljiljana Kolar-Anić
- Department of Catalysis and Chemical Engineering, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
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