Differential Neuroplastic Changes in Fibromyalgia and Depression Indexed by Up-Regulation of Motor Cortex Inhibition and Disinhibition of the Descending Pain System: An Exploratory Study
Background: Major depressive disorder (MDD) and fibromyalgia (FM) present overlapped symptoms. Although the connection between these two disorders has not been elucidated yet, the disruption of neuroplastic processes that mediate the equilibrium in the inhibitory systems stands out as a possible mec...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
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Frontiers Media S.A.
2019-04-01
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| Series: | Frontiers in Human Neuroscience |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fnhum.2019.00138/full |
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| author | Tiago Madeira Cardinal Luciana Conceição Antunes Aline Patricia Brietzke Cristiane Schulz Parizotti Fabiana Carvalho Andressa De Souza Iraci Lucena da Silva Torres Iraci Lucena da Silva Torres Felipe Fregni Wolnei Caumo Wolnei Caumo Wolnei Caumo |
| author_facet | Tiago Madeira Cardinal Luciana Conceição Antunes Aline Patricia Brietzke Cristiane Schulz Parizotti Fabiana Carvalho Andressa De Souza Iraci Lucena da Silva Torres Iraci Lucena da Silva Torres Felipe Fregni Wolnei Caumo Wolnei Caumo Wolnei Caumo |
| author_sort | Tiago Madeira Cardinal |
| collection | DOAJ |
| description | Background: Major depressive disorder (MDD) and fibromyalgia (FM) present overlapped symptoms. Although the connection between these two disorders has not been elucidated yet, the disruption of neuroplastic processes that mediate the equilibrium in the inhibitory systems stands out as a possible mechanism. Thus, the purpose of this cross-sectional exploratory study was: (i) to compare the motor cortex inhibition indexed by transcranial magnetic stimulation (TMS) measures [short intracortical inhibition (SICI) and intracortical facilitation (ICF)], as well as the function of descending pain modulatory systems (DPMS) among FM, MDD, and healthy subjects (HS); (ii) to compare SICI, ICF, and the role of DPMS evaluated by the change on Numerical Pain Scale (NPS) during the conditioned pain modulation test (CPM-test) between FM and MDD considering the BDNF-adjusted index; (iii) to assess the relationship between the role of DPMS and the BDNF-adjusted index, despite clinical diagnosis.Patients and Methods: A cohort of 63 women, aged 18 to 75 years [FM (n = 18), MDD (n = 19), and HC (n = 29)].Results: The MANCOVA analysis revealed that the mean of SICI was 53.40% larger in FM compared to MDD [1.03 (0.50) vs. 0.55 (0.43)] and 66.99% larger compared to HC [1.03 (0.50) vs. 0.34 (0.19)], respectively. The inhibitory potency of the DPMS assessed by the change on the NPS during CPM-test was 112.29 % lower in the FM compared to MDD [0.22 (1.37) vs. −0.87 (1.49)]. The mean of BDNF from FM compared to MDD was 35.70% higher [49.82 (16.31) vs. 14.12 (8.86)]. In FM, the Spearman’s coefficient between the change in the NPS during CPM-test with the SICI was Rho = −0.49, [confidence interval (CI) 95%; −0.78 to −0.03]. The BDNF-adjusted index was positively correlated with the disinhibition of the DPMS.Conclusion: These findings support the hypothesis that in FM a deteriorated function of cortical inhibition, indexed by a higher SICI parameter, a lower function of the DPMS, together with a higher level of BDNF indicate that FM has different pathological substrates from depression. They suggest that an up-regulation phenomenon of intracortical inhibitory networks associated with a disruption of the DPMS function occurs in FM. |
| first_indexed | 2024-12-10T06:21:11Z |
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| issn | 1662-5161 |
| language | English |
| last_indexed | 2024-12-10T06:21:11Z |
| publishDate | 2019-04-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Human Neuroscience |
| spelling | doaj.art-aa1d9363aec346499239f90876a87ea32022-12-22T01:59:21ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612019-04-011310.3389/fnhum.2019.00138446066Differential Neuroplastic Changes in Fibromyalgia and Depression Indexed by Up-Regulation of Motor Cortex Inhibition and Disinhibition of the Descending Pain System: An Exploratory StudyTiago Madeira Cardinal0Luciana Conceição Antunes1Aline Patricia Brietzke2Cristiane Schulz Parizotti3Fabiana Carvalho4Andressa De Souza5Iraci Lucena da Silva Torres6Iraci Lucena da Silva Torres7Felipe FregniWolnei Caumo8Wolnei Caumo9Wolnei Caumo10Post-graduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, BrazilDepartment of Nutrition, Health Science Center, Universidade Federal de Santa Catarina, Florianópolis, BrazilPost-graduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, BrazilPost-graduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, BrazilPost-graduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, BrazilPost-graduate Program in Health and Human Development, Universidade La Salle, Canoas, BrazilPost-graduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, BrazilDepartment of Pharmacology, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, BrazilPost-graduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, BrazilDepartment of Surgery, Pain, and Anesthesia, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, BrazilAnesthesiologist, Pain and Palliative Care Service, Hospital de Clínicas de Porto Alegre, Laboratory of Pain and Neuromodulation, Universidade Federal do Rio Grande do Sul, Porto Alegre, BrazilBackground: Major depressive disorder (MDD) and fibromyalgia (FM) present overlapped symptoms. Although the connection between these two disorders has not been elucidated yet, the disruption of neuroplastic processes that mediate the equilibrium in the inhibitory systems stands out as a possible mechanism. Thus, the purpose of this cross-sectional exploratory study was: (i) to compare the motor cortex inhibition indexed by transcranial magnetic stimulation (TMS) measures [short intracortical inhibition (SICI) and intracortical facilitation (ICF)], as well as the function of descending pain modulatory systems (DPMS) among FM, MDD, and healthy subjects (HS); (ii) to compare SICI, ICF, and the role of DPMS evaluated by the change on Numerical Pain Scale (NPS) during the conditioned pain modulation test (CPM-test) between FM and MDD considering the BDNF-adjusted index; (iii) to assess the relationship between the role of DPMS and the BDNF-adjusted index, despite clinical diagnosis.Patients and Methods: A cohort of 63 women, aged 18 to 75 years [FM (n = 18), MDD (n = 19), and HC (n = 29)].Results: The MANCOVA analysis revealed that the mean of SICI was 53.40% larger in FM compared to MDD [1.03 (0.50) vs. 0.55 (0.43)] and 66.99% larger compared to HC [1.03 (0.50) vs. 0.34 (0.19)], respectively. The inhibitory potency of the DPMS assessed by the change on the NPS during CPM-test was 112.29 % lower in the FM compared to MDD [0.22 (1.37) vs. −0.87 (1.49)]. The mean of BDNF from FM compared to MDD was 35.70% higher [49.82 (16.31) vs. 14.12 (8.86)]. In FM, the Spearman’s coefficient between the change in the NPS during CPM-test with the SICI was Rho = −0.49, [confidence interval (CI) 95%; −0.78 to −0.03]. The BDNF-adjusted index was positively correlated with the disinhibition of the DPMS.Conclusion: These findings support the hypothesis that in FM a deteriorated function of cortical inhibition, indexed by a higher SICI parameter, a lower function of the DPMS, together with a higher level of BDNF indicate that FM has different pathological substrates from depression. They suggest that an up-regulation phenomenon of intracortical inhibitory networks associated with a disruption of the DPMS function occurs in FM.https://www.frontiersin.org/article/10.3389/fnhum.2019.00138/fullfibromyalgiadepressionprimary motor cortexpainCPMBDNF |
| spellingShingle | Tiago Madeira Cardinal Luciana Conceição Antunes Aline Patricia Brietzke Cristiane Schulz Parizotti Fabiana Carvalho Andressa De Souza Iraci Lucena da Silva Torres Iraci Lucena da Silva Torres Felipe Fregni Wolnei Caumo Wolnei Caumo Wolnei Caumo Differential Neuroplastic Changes in Fibromyalgia and Depression Indexed by Up-Regulation of Motor Cortex Inhibition and Disinhibition of the Descending Pain System: An Exploratory Study Frontiers in Human Neuroscience fibromyalgia depression primary motor cortex pain CPM BDNF |
| title | Differential Neuroplastic Changes in Fibromyalgia and Depression Indexed by Up-Regulation of Motor Cortex Inhibition and Disinhibition of the Descending Pain System: An Exploratory Study |
| title_full | Differential Neuroplastic Changes in Fibromyalgia and Depression Indexed by Up-Regulation of Motor Cortex Inhibition and Disinhibition of the Descending Pain System: An Exploratory Study |
| title_fullStr | Differential Neuroplastic Changes in Fibromyalgia and Depression Indexed by Up-Regulation of Motor Cortex Inhibition and Disinhibition of the Descending Pain System: An Exploratory Study |
| title_full_unstemmed | Differential Neuroplastic Changes in Fibromyalgia and Depression Indexed by Up-Regulation of Motor Cortex Inhibition and Disinhibition of the Descending Pain System: An Exploratory Study |
| title_short | Differential Neuroplastic Changes in Fibromyalgia and Depression Indexed by Up-Regulation of Motor Cortex Inhibition and Disinhibition of the Descending Pain System: An Exploratory Study |
| title_sort | differential neuroplastic changes in fibromyalgia and depression indexed by up regulation of motor cortex inhibition and disinhibition of the descending pain system an exploratory study |
| topic | fibromyalgia depression primary motor cortex pain CPM BDNF |
| url | https://www.frontiersin.org/article/10.3389/fnhum.2019.00138/full |
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