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Leitão AWA, Borges MMF, Martins JODL, Coelho AA, Carlos ACAM, Alves APNN, Silva PGDB, Sousa FB. Celecoxib in the treatment of orofacial pain and discomfort in rats subjected to a dental occlusal interference model. Acta Cir Bras 2022; 37:e370506. [PMID: 35976283 PMCID: PMC9377653 DOI: 10.1590/acb370506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 04/11/2022] [Indexed: 11/24/2022] Open
Abstract
Purpose: To evaluate the effect of a selective cyclooxygenase 2 (COX-2) inhibitor on trigeminal ganglion changes and orofacial discomfort/nociception in rats submitted to an experimental model of dental occlusal interference (DOI). Methods: Female Wistar rats (180-200 g) were divided into five groups: a sham group (without DOI) (n=15); and four experimental groups with DOI treated daily with 0.1 mL/kg saline (DOI+SAL), 8, 16, or 32 mg/kg celecoxib (DOI+cel -8, -16, -32) (n=30/group). The animals were euthanized after one, three, and seven days. The bilateral trigeminal ganglia were analyzed histomorphometrically (neuron cell body area) and immunohistochemically (COX-2, nuclear factor-kappa B [NFkB], and peroxisome proliferator-activated receptor-y [PPARy]). A bilateral nociception assay of the masseter muscle was performed. The number of bites/scratches, weight, and grimace scale scores were determined daily. One-way/two-way analysis of variance (ANOVA)/Bonferroni post hoc tests were used (P < .05, GraphPad Prism 5.0). Results: DOI+SAL showed a reduction in neuron cell body area bilaterally, whereas DOI+cel-32 exhibited a significative increase in neuron cell body area compared with DOI+SAL group (P < 0.05). The ipsilateral (P=0.007 and P=0.039) and contralateral (P < 0.001 and P=0.005) overexpression of COX-2 and NFkB and downregulation of PPARy (P=0.016 and P < 0.001) occurred in DOI+SAL, but DOI+cel-32 reverted this alteration. DOI+SAL showed increase in isplateral (P < 0.001) and contralateral (P < 0.001) nociception, an increased number of bites (P=0.010), scratches (P < 0.001), and grimace scores (P=0.032). In the group of DOI+cel-32, these parameters were reduced. Conclusions: Celecoxib attenuated DOI-induced transitory nociception/orofacial discomfort resulting from trigeminal COX-2 overexpression.
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Affiliation(s)
- Andrea Whitehurst Ary Leitão
- Master. Centro Univeristário Christus - Department of Dentistry - Laboratory of Oral Pathology - Fortaleza (CE), Brazil
| | - Marcela Maria Fontes Borges
- Fellow Master degree. Universidade Federal do Ceará - Faculty of Pharmacy, Dentistry and Nursing - Division of Oral Pathology - Fortaleza (CE), Brazil
| | - Joyce Ohana de Lima Martins
- Fellow Master degree. Universidade Federal do Ceará - Faculty of Pharmacy, Dentistry and Nursing - Division of Oral Pathology - Fortaleza (CE), Brazil
| | - Antônio Alexandre Coelho
- Graduate student. Centro Univeristário Christus - Department of Dentistry - Fortaleza (CE), Brazil
| | | | - Ana Paula Negreiros Nunes Alves
- PhD, Full Professor. Universidade Federal do Ceará - Faculty of Pharmacy, Dentistry and Nursing - Division of Oral Pathology - Fortaleza (CE), Brazil
| | - Paulo Goberlânio de Barros Silva
- PhD, Full Professor. Centro Univeristário Christus - Department of Dentistry - Laboratory of Oral Pathology - Fortaleza (CE), Brazil
| | - Fabrício Bitu Sousa
- PhD, Full Professor. Centro Univeristário Christus - Department of Dentistry - Laboratory of Oral Pathology - Fortaleza (CE), Brazil
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Takizawa K, Urata K, Tanaka R, Ozasa K, Young A, Noma N. Headache Attributed to Temporomandibular Disorder and Primary Cough Headache. Neurol Int 2022; 14:158-163. [PMID: 35076622 PMCID: PMC8788466 DOI: 10.3390/neurolint14010011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/22/2021] [Accepted: 01/12/2022] [Indexed: 02/05/2023] Open
Abstract
Orofacial pain is a frequent chief complaint of many systemic disorders. A primary cough headache may mimic the clinical symptoms of a temporomandibular disorder (TMD) or may be associated with TMDs. Case report: A 52-year-old man presented with a 1-year history of TMD symptoms with clicking. He presented with the chief complaint of a sudden and severe headache when coughing, sneezing, or crouching. Comprehensive intra- and extra-oral examinations were performed, which revealed myofascial pain involving the right masseter and temporalis muscles, disc displacement with reduction in the right temporomandibular joint, and headache attributed to TMD, but no severe headaches appeared in the cough-induced test at the first visit. Initially, we advised the patient to minimize activities that require jaw function (e.g., chewing), avoid jaw parafunction (e.g., bruxism), and to perform at-home jaw exercises to stretch the jaw muscles. The patient’s symptoms reduced by more than half after the TMD home care and physiotherapy. He was then treated with 75 mg of indomethacin per day, which eliminated his headache. The patient was then referred to a headache specialist, who diagnosed primary cough headache.
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Affiliation(s)
- Keita Takizawa
- Department of Oral Diagnostic Sciences, Nihon University School of Dentistry, Tokyo 101-8310, Japan; (K.T.); (R.T.); (K.O.)
| | - Kentaro Urata
- Department of Complete Denture Prosthodontics, Nihon University School of Dentistry, Tokyo 101-8310, Japan;
| | - Rena Tanaka
- Department of Oral Diagnostic Sciences, Nihon University School of Dentistry, Tokyo 101-8310, Japan; (K.T.); (R.T.); (K.O.)
| | - Kana Ozasa
- Department of Oral Diagnostic Sciences, Nihon University School of Dentistry, Tokyo 101-8310, Japan; (K.T.); (R.T.); (K.O.)
| | - Andrew Young
- Department of Diagnostic Sciences, Arthur Dugoni School of Dentistry, University of the Pacific, San Francisco, CA 94103, USA;
| | - Noboru Noma
- Department of Oral Diagnostic Sciences, Nihon University School of Dentistry, Tokyo 101-8310, Japan; (K.T.); (R.T.); (K.O.)
- Correspondence:
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Nascimento GC, de Paula BB, Ferrari DP, Iyomasa DM, Pereira YCL, Pedrazzi JF, Bortolanza M, Issy AC, Issa JPM, Leite-Panissi CRA, Iyomasa MM, Del-Bel E. Upregulation of FosB/ΔFosB in limbic circuits after tooth exodontia-induced occlusal instability in an experimental model of unpredictable chronic stress. Brain Res Bull 2021; 176:142-150. [PMID: 34500037 DOI: 10.1016/j.brainresbull.2021.08.015] [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: 04/07/2021] [Revised: 07/23/2021] [Accepted: 08/31/2021] [Indexed: 10/20/2022]
Abstract
Psychological stress and occlusal alterations are contributing etiologic factors for temporomandibular and muscular disorders in the orofacial area. The neural modulation recruited for this relationship, however, is not elucidated. The aim of this study was to investigate potential central mechanisms involved in the exodontia-induced occlusal instability associated with unpredictable chronic stress (UCS). Male adult Wistar rats were submitted to occlusal instability (unilateral molar teeth extraction) and/or to a UCS protocol and treated with diazepam or vehicle. The anxiety-like behavior was evaluated by elevated plus maze (EPM) and open field (OF) tests. Limbic structures such as the central nucleus of the amygdala (CeA), paraventricular nucleus of the hypothalamus (PVN), dorsal periaqueductal gray matter (dPAG) and nucleus accumbens core (NAc) were analyzed for expression of FosB/ΔFosB (immediate early genes) by immunohistochemistry. Exodontia and/or UCS decreased the time spent in the open arms at the EPM and the distance travelled at the OF, and increased the immobility time at the OF, suggesting anxiety-like behavior. In addition, exodontia induction resulted in an upregulation of FosB/ΔFosB in the CeA, PVN and dPAG, while UCS and exodontia + UCS upregulate FosB/ΔFosB immunoreactivity in the CeA, PVN, dPAG and NAc. Treatment with diazepam decreased the expression of FosB/ΔFosB in all analyzed structures of animals subject to UCS and exodontia + UCS, while promoted a reduction in the FosB/ΔFosB expression in the CeA, PVN and dPAG in animals subject to exodontia. Our findings showed an anxiogenic effect of exodontia and UCS, which is correlated with intranuclear neuron activation of limbic structures in a spatially dependent manner and that is prevented by the administration of diazepam.
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Affiliation(s)
- Glauce Crivelaro Nascimento
- Department of Oral and Basic Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, 14040-904, SP, Brazil
| | - Bruna Balbino de Paula
- Department of Psychology, School of Philosophy, Science and Letters of Ribeirão Preto, University of São Paulo, 14040-901, SP, Brazil
| | - Daniele P Ferrari
- Department of Neurology, School of Medicine of Ribeirão Preto, University of São Paulo, 14040-900, SP, Brazil
| | - Daniela Mizusaki Iyomasa
- Department of Psychology, School of Philosophy, Science and Letters of Ribeirão Preto, University of São Paulo, 14040-901, SP, Brazil
| | - Yamba C L Pereira
- Department of Oral and Basic Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, 14040-904, SP, Brazil
| | - João F Pedrazzi
- Department of Neurology, School of Medicine of Ribeirão Preto, University of São Paulo, 14040-900, SP, Brazil
| | - Mariza Bortolanza
- Department of Oral and Basic Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, 14040-904, SP, Brazil
| | - Ana Carolina Issy
- Department of Oral and Basic Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, 14040-904, SP, Brazil
| | - João Paulo Mardegan Issa
- Department of Oral and Basic Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, 14040-904, SP, Brazil
| | - Christie R A Leite-Panissi
- Department of Psychology, School of Philosophy, Science and Letters of Ribeirão Preto, University of São Paulo, 14040-901, SP, Brazil
| | - Mamie Mizusaki Iyomasa
- Department of Oral and Basic Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, 14040-904, SP, Brazil
| | - Elaine Del-Bel
- Department of Oral and Basic Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, 14040-904, SP, Brazil.
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王 云, 钱 金, 顾 亚, 陈 传, 汪 萌. [Electrophysiological monitoring of pain afferent pathway of the trigeminal nerve and its functional plasticity in response to occlusal interference in rats]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2019; 39:1160-1165. [PMID: 31801715 PMCID: PMC6867951 DOI: 10.12122/j.issn.1673-4254.2019.10.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To observe the effect of occlusal interference on the afferent pathway of the trigeminal nerve and neuronal excitability in the trigeminal subnucleus caudalis (SPVC) of rats by electrical stimulation of the trigeminal ganglion (TG) and extracellular recordings of SPVC activities. METHODS Twenty male Wistar rats were randomly divided into control group and model group (n=10). In the model group, occlusal interference for 30 consecutive days was induced using light-cured flowable resin on the right maxillary molars. During occlusal interference, the pain sensitivity was scored with von Frey Fibers in the masseter. Simultaneous recordings of electrical activities from the SPVC, electrocardiogram, body temperature and electromyogram of the breath muscles of the anesthetized rats were performed, and the responses evoked by electrical stimulation of the TG were analyzed. RESULTS Compared with the control rats, the rats in the model group showed significantly increased pain sensitivity scores (P < 0.05) and increased spontaneous discharge frequency of the SPVC (P < 0.05). The amplitude of the SPVC responses induced by electrical stimulation of the TG showed stimulus intensity-dependent changes (P < 0.05), and the amplitude evoked by 4 mA and 8 mA stimulation was similar between the model group and the control group (P>0.05). Train stimulation (0.2 ms, 1 mA, 30 s, 100 Hz) of the TG significantly increased the discharge frequency of the SPVC only in the rats in the model group (P < 0.05). CONCLUSIONS The functional activities of the pain afferent pathway of the trigeminal nerve can be electrophysiologically monitored by electrical stimulation of the TG and extracellular recordings of SPVC activities in rats. Occlusal interference can increase the excitability of the neurons in the SPVC and enhance their sensitivities to TG afferent activation, suggesting the neural plasticity of the pain afferent pathway.
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Affiliation(s)
- 云 王
- 皖南医学院 口腔医学院,安徽 芜湖 241002School of Stomatology, Wannan Medical College, Wuhu 241002, China
- 皖南医学院 细胞电生理研究室,安徽 芜湖 241002Cell Electrophysiology Laboratory, Wannan Medical College, Wuhu 241002, China
| | - 金萍 钱
- 皖南医学院 口腔医学院,安徽 芜湖 241002School of Stomatology, Wannan Medical College, Wuhu 241002, China
- 皖南医学院 细胞电生理研究室,安徽 芜湖 241002Cell Electrophysiology Laboratory, Wannan Medical College, Wuhu 241002, China
- 皖南医学院 启明星小组,安徽 芜湖 241002Rising-Star Group, Wannan Medical College, Wuhu 241002, China
| | - 亚茹 顾
- 皖南医学院 口腔医学院,安徽 芜湖 241002School of Stomatology, Wannan Medical College, Wuhu 241002, China
- 皖南医学院 细胞电生理研究室,安徽 芜湖 241002Cell Electrophysiology Laboratory, Wannan Medical College, Wuhu 241002, China
- 皖南医学院 启明星小组,安徽 芜湖 241002Rising-Star Group, Wannan Medical College, Wuhu 241002, China
| | - 传俊 陈
- 皖南医学院 口腔医学院,安徽 芜湖 241002School of Stomatology, Wannan Medical College, Wuhu 241002, China
| | - 萌芽 汪
- 皖南医学院 细胞电生理研究室,安徽 芜湖 241002Cell Electrophysiology Laboratory, Wannan Medical College, Wuhu 241002, China
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de Melo Aquino B, da Silva Dos Santos DF, Jorge CO, Marques ACS, Teixeira JM, Parada CA, Oliveira-Fusaro MCG. P2X3 receptors contribute to muscle pain induced by static contraction by a mechanism dependent on neutrophil migration. Purinergic Signal 2019; 15:167-175. [PMID: 31115830 DOI: 10.1007/s11302-019-09659-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 05/13/2019] [Indexed: 01/02/2023] Open
Abstract
P2X3 receptors are involved with several pain conditions. Muscle pain induced by static contraction has an important socioeconomic impact. Here, we evaluated the involvement of P2X3 receptors on mechanical muscle hyperalgesia and neutrophil migration induced by static contraction in rats. Also, we evaluated whether static contraction would be able to increase muscle levels of TNF-α and IL-1β. Male Wistar rats were pretreated with the selective P2X3 receptor antagonist, A-317491, by intramuscular or intrathecal injection and the static contraction-induced mechanical muscle hyperalgesia was evaluated using the Randall-Selitto test. Neutrophil migration was evaluated by measurement of myeloperoxidase (MPO) kinetic-colorimetric assay and the cytokines TNF-α and IL-1β by enzyme-linked immunosorbent assay. Intramuscular or intrathecal pretreatment with A-317491 prevented static contraction-induced mechanical muscle hyperalgesia. In addition, A-317491 reduced static contraction-induced mechanical muscle hyperalgesia when administered 30 and 60 min of the beginning of static contraction, but not after 30 and 60 min of the end of static contraction. Intramuscular A-317491 also prevented static contraction-induced neutrophil migration. In a period of 24 h, static contraction did not increase muscle levels of TNF-α and IL-1β. These findings demonstrated that mechanical muscle hyperalgesia and neutrophil migration induced by static contraction are modulated by P2X3 receptors expressed on the gastrocnemius muscle and spinal cord dorsal horn. Also, we suggest that P2X3 receptors are important to the development but not to maintenance of muscle hyperalgesia. Therefore, P2X3 receptors can be pointed out as a target to musculoskeletal pain conditions induced by daily or work-related activities.
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Affiliation(s)
- Bruna de Melo Aquino
- Laboratory of Pain and Inflammation Research, School of Applied Sciences, State University of Campinas, Pedro Zaccaria 1300, Limeira, Sao Paulo, Brazil
| | - Diogo Francisco da Silva Dos Santos
- Laboratory of Pain and Inflammation Research, School of Applied Sciences, State University of Campinas, Pedro Zaccaria 1300, Limeira, Sao Paulo, Brazil
| | - Carolina Ocanha Jorge
- Laboratory of Pain and Inflammation Research, School of Applied Sciences, State University of Campinas, Pedro Zaccaria 1300, Limeira, Sao Paulo, Brazil
| | - Aline Carolina Salgado Marques
- Laboratory of Pain and Inflammation Research, School of Applied Sciences, State University of Campinas, Pedro Zaccaria 1300, Limeira, Sao Paulo, Brazil
| | - Juliana Maia Teixeira
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Monteiro Lobato 255, Campinas, Sao Paulo, Brazil
| | - Carlos Amilcar Parada
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas, Monteiro Lobato 255, Campinas, Sao Paulo, Brazil
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Dr. Ira Shapira’s reply. Cranio 2017; 35:413-414. [DOI: 10.1080/08869634.2017.1380167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Central Sensitization-Based Classification for Temporomandibular Disorders: A Pathogenetic Hypothesis. Pain Res Manag 2017; 2017:5957076. [PMID: 28932132 PMCID: PMC5592418 DOI: 10.1155/2017/5957076] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 06/03/2017] [Accepted: 07/09/2017] [Indexed: 12/15/2022]
Abstract
Dysregulation of Autonomic Nervous System (ANS) and central pain pathways in temporomandibular disorders (TMD) is a growing evidence. Authors include some forms of TMD among central sensitization syndromes (CSS), a group of pathologies characterized by central morphofunctional alterations. Central Sensitization Inventory (CSI) is useful for clinical diagnosis. Clinical examination and CSI cannot identify the central site(s) affected in these diseases. Ultralow frequency transcutaneous electrical nerve stimulation (ULFTENS) is extensively used in TMD and in dental clinical practice, because of its effects on descending pain modulation pathways. The Diagnostic Criteria for TMD (DC/TMD) are the most accurate tool for diagnosis and classification of TMD. However, it includes CSI to investigate central aspects of TMD. Preliminary data on sensory ULFTENS show it is a reliable tool for the study of central and autonomic pathways in TMD. An alternative classification based on the presence of Central Sensitization and on individual response to sensory ULFTENS is proposed. TMD may be classified into 4 groups: (a) TMD with Central Sensitization ULFTENS Responders; (b) TMD with Central Sensitization ULFTENS Nonresponders; (c) TMD without Central Sensitization ULFTENS Responders; (d) TMD without Central Sensitization ULFTENS Nonresponders. This pathogenic classification of TMD may help to differentiate therapy and aetiology.
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Tariba Knežević P, Vukman R, Antonić R, Kovač Z, Uhač I, Simonić-Kocijan S. The role of P2X3 receptors in bilateral masseter muscle allodynia in rats. Croat Med J 2017; 57:530-539. [PMID: 28051277 PMCID: PMC5209933 DOI: 10.3325/cmj.2016.57.530] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
AIM To determine the relationship between bilateral allodynia induced by masseter inflammation and P2X3 receptor expression changes in trigeminal ganglia (TRG) and the influence of intramasseteric P2X3 antagonist administration on bilateral masseter allodynia. METHODS To induce bilateral allodynia, rats received a unilateral injection of complete Freund's adjuvant (CFA) into the masseter muscle. Bilateral head withdrawal threshold (HWT) was measured 4 days later. Behavioral measurements were followed by bilateral masseter muscle and TRG dissection. Masseter tissue was evaluated histopathologically and TRG tissue was analyzed for P2X3 receptor mRNA expression by using quantitative real-time polymerase chain reaction (PCR) analysis. To assess the P2X3 receptor involvement in nocifensive behavior, two doses (6 and 60 μg/50 μL) of selective P2X3 antagonist A-317491 were administrated into the inflamed masseter muscle 4 days after the CFA injection. Bilateral HWT was measured at 15-, 30-, 60-, and 120-minute time points. RESULTS HWT was bilaterally reduced after the CFA injection (P<0.001). Intramasseteric inflammation was confirmed ipsilaterally to the CFA injection. Quantitative real-time PCR analysis demonstrated enhanced P2X3 expression in TRG ipsilaterally to CFA administration (P<0.01). In comparison with controls, the dose of 6 μg of A-317491 significantly increased bilateral HWT at 15-, 30-, and 60-minute time points after the A-317491 administration (P<0.001), whereas the dose of 60 μg of A-317491 was efficient at all time points ipsilaterally (P=0.004) and at 15-, 30-, and 60-minute time points contralaterally (P<0.001). CONCLUSION Unilateral masseter inflammation can induce bilateral allodynia in rats. The study provided evidence that P2X3 receptors can functionally influence masseter muscle allodynia and suggested that P2X3 receptors expressed in TRG neurons are involved in masseter inflammatory pain conditions.
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Affiliation(s)
- Petra Tariba Knežević
- Petra Tariba Knežević, Department of Prosthodontics, University of Rijeka School of Dental Medicine and School of Medicine, Kreąimirova 40, 51000 Rijeka, Croatia,
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