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Choi GJ, Kang H, Lee JM, Baek CW, Jung YH, Woo YC, Do JH, Ko JS. Effect of intraperitoneally administered propentofylline in a rat model of postoperative pain. Korean J Pain 2020; 33:326-334. [PMID: 32989197 PMCID: PMC7532297 DOI: 10.3344/kjp.2020.33.4.326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/08/2020] [Accepted: 08/09/2020] [Indexed: 11/17/2022] Open
Abstract
Background In this study, we sought to evaluate whether systemic propentofylline (PPF) has antiallodynic effects in a rat model of postoperative pain, and to assess the mechanism involved. Methods After plantar incision, rats were intraperitoneally injected with various doses of PPF to evaluate its antiallodynic effect. To investigate the involved mechanism, rats were intraperitoneally injected with yohimbine, dexmedetomidine, prazosin, naloxone, atropine or mecamylamine, following the incision of the rat hind paws, and then PPF was administered intraperitoneally. The mechanical withdrawal threshold (MWT) was evaluated using von Frey filaments at various time points and serum levels of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 were measured to determine the inflammatory response level. Results MWT was significantly increased after intraperitoneal injection of 30 mg/kg of PPF when compared with the control group. Injection of PPF and yohimbine, atropine or mecamylamine showed significant decreases in the MWT, while injection of PPF and dexmedetomidine showed a significant increase. Systemic administration of PPF inhibited the post-incisional increase in serum level of TNF-α and IL-1β. Conclusions Systemic administration of PPF following surgery presented antiallodynic effects in a rat model of postoperative pain. The antiallodynic effects against mechanical allodynia could be mediated by α-adrenergic and cholinergic receptors.
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Affiliation(s)
- Geun Joo Choi
- Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Hyun Kang
- Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Jun Mo Lee
- Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Chong Wha Baek
- Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Yong Hun Jung
- Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Young Cheol Woo
- Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Jae Hyuk Do
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Jin Soo Ko
- Department of Plastic Surgery, National Police Hospital, Seoul, Korea
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Charousaei A, Nasehi M, Babapour V, Vaseghi S, Zarrindast MR. The effect of 5-HT 4 serotonin receptors in the CA3 hippocampal region on D-AP5-induced anxiolytic-like effects: Isobolographic analyses. Behav Brain Res 2020; 397:112933. [PMID: 32991927 DOI: 10.1016/j.bbr.2020.112933] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/25/2020] [Accepted: 09/22/2020] [Indexed: 01/03/2023]
Abstract
Increasing evidence shows the close relationship between hippocampal glutamatergic and serotonergic systems through the modulation of behavioral responses. This study aimed to investigate the possible involvement of 5-HT4 receptors in the CA3 hippocampal region in anxiolytic-like effects induced by D-AP5 (a competitive antagonist of the glutamate NMDA [N-Methyl-D-aspartate] receptor). Male Wistar rats were placed in the elevated plus maze (EPM) apparatus that is used to assess anxiety-related behaviors, and the percentages of open arm time (%OAT) and open arm entries (%OAE) which are associated with anxiety-related behaviors were measured. The close arm entries (CAE) which is correlated with locomotor activity was also evaluated. The results showed that, intra-CA3 injection of D-AP5 (0.4 μg/rat), RS67333 (1.2 μg/rat; a 5-HT4 receptor agonist), and RS23597-190 (1.2 μg/rat; a 5-HT4 receptor antagonist) increased %OAT and %OAE, indicating the anxiolytic-like effect of these drugs. Also, only RS23597-190 (1.2 μg/rat) decreased CAE. Intra-CA3 injection of sub-threshold dose of RS67333 (0.012 μg/rat) or RS23597-190 (0.012 μg/rat), 5 min before the injection of D-AP5 (0.2 μg/rat) increased %OAT, indicating potentiating the anxiolytic-like effect of D-AP5. The isobolographic analyses also showed the additive or synergistic anxiolytic-like effect of intra-CA3 co-administration of D-AP5 with RS67333 or RS23597-190, respectively. In conclusion, CA3 5-HT4 receptors are involved in D-AP5-induced anxiolytic-like behaviors in rats.
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Affiliation(s)
- Amin Charousaei
- Department of Physiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mohammad Nasehi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Vahab Babapour
- Department of Physiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Salar Vaseghi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Cognitive Neuroscience, Institute for Cognitive Science Studies (ICSS), Tehran, Iran
| | - Mohammad-Reza Zarrindast
- Department of Cognitive Neuroscience, Institute for Cognitive Science Studies (ICSS), Tehran, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Neuroendocrinology, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
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3
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Ebrahimi-Ghiri M, Mohammadi-Mahdiabadi-Hasani MH, Nasehi M, Zarrindast MR. Better antidepressant efficacy of mecamylamine in combination with L-NAME than with L-arginine. Behav Brain Res 2020; 386:112604. [PMID: 32198105 DOI: 10.1016/j.bbr.2020.112604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 02/19/2020] [Accepted: 03/02/2020] [Indexed: 12/12/2022]
Abstract
Aff ;ective disorders, including anxiety and mood disorders, are a constellation of psychiatric diseases that aff ;ect over 10 % of the world's population. It has been proposed that drugs that change nicotinic acetylcholine receptor (nAChR) activity can affect mood- and anxiety-related behaviors. Also, neuronal nitric oxide synthase (nNOS) is closely associated with the pathophysiology of these disorders. To limit the potential adverse effects of alteration in cholinergic and nitric oxide (NO) systems, we investigated the combined efficacy of subthreshold doses of nAChR antagonist mecamylamine and NO ligands (L-arginine as agonist and l-NAME as an antagonist) on depression- and anxiety-related behaviors in male NMRI mice. Depression-related behaviors using the forced swim test (FST) and anxiety-like activity using the hole-board test were assessed. In our results, mecamylamine (3 mg/kg) showed antidepressant-like properties, and it also tended to have anxiolytic-like effects, though not significant. Concomitant treatment of subthreshold doses of mecamylamine (1 mg/kg) and l-arginine (25 mg/kg), l-NAME (1 mg/kg), or l-arginine/L-NAME were antidepressive. In contrast, l-arginine/L-NAME alone or in associated with mecamylamine showed anxiogenic-like efficacy. Isobolographic analysis exhibited an additive antidepressant effect of the combined subthreshold doses of mecamylamine and l-arginine, and a synergistic antidepressant effect of the combined subthreshold doses of mecamylamine and l-NAME. It should be noted that mecamylamine (3 mg/kg) elicited hypolocomotion. Our results suggest that mecamylamine produces a better antidepressant efficacy in combination with l-NAME than with l-arginine.
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Affiliation(s)
| | | | - Mohammad Nasehi
- Cognitive and Neuroscience Research Center (CNRC), Tehran Medical Sciences, Amir-Almomenin Hospital, Islamic Azad University, Tehran, Iran.
| | - Mohammad-Reza Zarrindast
- Department of Pharmacology School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran; Institute for Cognitive Science Studies (ICSS), Tehran, Iran; Department of Neuroendocrinology, Endocrinology, and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
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4
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Lucena F, Callado de Oliveira DMM, Norões MM, Mujica EMM, Melleu FF, Benedet PDO, Stein T, Ribeiro LFC, Tonussi CR. Intrathecally injected tramadol reduces articular incapacitation and edema in a rat model of lipopolysaccharide (LPS)-induced reactive arthritis. Life Sci 2019; 236:116860. [PMID: 31518605 DOI: 10.1016/j.lfs.2019.116860] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/29/2019] [Accepted: 09/08/2019] [Indexed: 10/26/2022]
Abstract
AIMS Intrathecal injection of morphine presents analgesic and antiedematogenic effects in rats. However, it is unknown whether tramadol, which possess a mixed mechanism of action, can also produce analgesic and antiedematogenic effects similarly. MAIN METHODS Male Wistar rats received carrageenan and LPS in the right knee joint. Tramadol (10 μg) was injected intrathecally 20 min before articular LPS injection. Incapacitation and articular edema were measured 5 h after LPS stimulation. Synovial fluid was collected for leukocyte counting and western blot analysis. Whole joint and lumbar spinal cord were also collected for histology and immunohistochemistry, respectively. Intrathecal pretreatments groups were with the NKCC1 blocker bumetanide, TRPV1 agonist resiniferatoxin, μ-opioid receptor antagonist CTOP and serotonergic neurotoxin 5,7-DHT, all previously to tramadol. KEY FINDINGS Tramadol treatment caused the reduction of incapacitation and edema. It also reduced c-Fos protein expression in the spinal cord dorsal horn and slightly reduced TNF-α levels in synovial fluid, but neither reduced cell migration nor tissue damage. Bumetanide and resiniferatoxin prevented the analgesic and antiedematogenic effects of tramadol. CTOP prevented the analgesic and the antiedematogenic effects, but 5,7-DHT prevented only tramadol-induced analgesia. SIGNIFICANCE Spinal NKCC1 cotransporter and peptidergic peripheral afferents seem to be important for the analgesic and antiedematogenic effects of tramadol, as well as μ-opioid receptor. However, the monoamine uptake inhibition effect of tramadol seems to be important only to the analgesic effect.
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Affiliation(s)
- Flora Lucena
- Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | | | - Maíra M Norões
- Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Elba M M Mujica
- Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Fernando F Melleu
- Department of Physiological Sciences, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Patrícia de O Benedet
- Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Taciane Stein
- Program in Biosciences and Health, State University of Western Parana, Cascavel, PR 85819-110, Brazil
| | - Lucineia F C Ribeiro
- Program in Biosciences and Health, State University of Western Parana, Cascavel, PR 85819-110, Brazil
| | - Carlos R Tonussi
- Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, SC 88040-900, Brazil.
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Abstract
Tramadol-an atypical opioid analgesic-has a unique pharmacokinetic and pharmacodynamic profile, with opioidergic, noradrenergic, and serotonergic actions. Tramadol has long been used as a well-tolerated alternative to other drugs in moderate pain because of its opioidergic and monoaminergic activities. However, cumulative evidence has been gathered over the last few years that supports other likely mechanisms and uses of tramadol in pain management. Tramadol has modulatory effects on several mediators involved in pain signaling, such as voltage-gated sodium ion channels, transient receptor potential V1 channels, glutamate receptors, α2-adrenoceptors, adenosine receptors, and mechanisms involving substance P, calcitonin gene-related peptide, prostaglandin E2, and proinflammatory cytokines. Tramadol also modifies the crosstalk between neuronal and non-neuronal cells in peripheral and central sites. Through these molecular effects, tramadol could modulate peripheral and central neuronal hyperexcitability. Given the broad spectrum of molecular targets, tramadol as a unimodal analgesic relieves a broad range of pain types, such as postoperative, low back, and neuropathic pain and that associated with labor, osteoarthritis, fibromyalgia, and cancer. Moreover, tramadol has anxiolytic, antidepressant, and anti-shivering activities that could improve pain management outcomes. The aim of this review was to address these issues in the context of maladaptive physiological and psychological processes that are associated with different pain types.
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Affiliation(s)
- Ahmed Barakat
- Department of Medical Pharmacology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt.
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6
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Interaction between NMDA and CB2 function in the dorsal hippocampus on memory consolidation impairment: an isobologram analysis. Psychopharmacology (Berl) 2017; 234:507-514. [PMID: 27858086 DOI: 10.1007/s00213-016-4481-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 11/07/2016] [Indexed: 12/31/2022]
Abstract
RATIONALE Convincing evidence has supported the pivotal role of N-methyl-D-aspartate receptors (NMDARs) and CB2Rs in the regulation of learning and memory. OBJECTIVE In this study, the role of hippocampal (CA1 region) CB2 receptors on aversive memory consolidation deficit induced by D-AP5, a NMDA receptor antagonist, was evaluated. METHODS Adult male Wistar rats received cannula implants that bilaterally targeted the CA1 region. Long-term memory was examined using the step-through type of passive avoidance task. RESULTS Post-training, intra-CA1 microinjection of D-AP5 (0.5 and 0.75 μg/rat), GP1a (CB2 receptor agonist at dose of 150 ng/rat) and AM630 (CB2 receptor antagonist at doses 75 and 100 ng/rat) impaired memory consolidation processes. Intra-CA1 microinjection of a lower dose of GP1a or AM630 restored memory impairment induced by D-AP5 at the two higher doses, while AM630 decreased D-AP5 memory response at the lower dose. The isobologram analysis showed that there is a synergistic effect between D-AP5 and AM630 on memory consolidation deficit. CONCLUSIONS These results suggest that CA1 CB2 receptors modulate memory consolidation impairment induced by D-AP5.
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7
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Simon BT, Steagall PV. The present and future of opioid analgesics in small animal practice. J Vet Pharmacol Ther 2016; 40:315-326. [DOI: 10.1111/jvp.12377] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 09/25/2016] [Indexed: 11/30/2022]
Affiliation(s)
- B. T. Simon
- Department of Small Animal Clinical Sciences; College of Veterinary Medicine and Biomedical Sciences; Texas A&M University; College Station TX USA
| | - P. V. Steagall
- Department of Clinical Sciences; Faculty of Veterinary Medicine; Université de Montréal; Saint-Hyacinthe QC Canada
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8
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Corona-Ramos JN, De la O-Arciniega M, Déciga-Campos M, Medina-López JR, Domínguez-Ramírez AM, Jaramillo-Morales OA, Espinosa-Juárez JV, López-Muñoz FJ. The Antinociceptive Effects of Tramadol and/or Gabapentin on Rat Neuropathic Pain Induced by a Chronic Constriction Injury. Drug Dev Res 2016; 77:217-26. [DOI: 10.1002/ddr.21313] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 05/07/2016] [Indexed: 01/17/2023]
Affiliation(s)
| | - Minarda De la O-Arciniega
- Área Académica de Farmacia del Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo; Pachuca Hidalgo México
| | - Myrna Déciga-Campos
- Sección de Estudios de Posgrado e Investigación de la Escuela Superior de Medicina del IPN; C.P. 11340 México D.F. México
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9
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Longhi-Balbinot DT, Rossaneis AC, Pinho-Ribeiro FA, Bertozzi MM, Cunha FQ, Alves-Filho JC, Cunha TM, Peron JPS, Miranda KM, Casagrande R, Verri WA. The nitroxyl donor, Angeli's salt, reduces chronic constriction injury-induced neuropathic pain. Chem Biol Interact 2016; 256:1-8. [PMID: 27287419 DOI: 10.1016/j.cbi.2016.06.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/27/2016] [Accepted: 06/06/2016] [Indexed: 12/31/2022]
Abstract
Chronic pain is a major health problem worldwide. We have recently demonstrated the analgesic effect of the nitroxyl donor, Angeli's salt (AS) in models of inflammatory pain. In the present study, the acute and chronic analgesic effects of AS was investigated in chronic constriction injury of the sciatic nerve (CCI)-induced neuropathic pain in mice. Acute (7th day after CCI) AS treatment (1 and 3 mg/kg; s.c.) reduced CCI-induced mechanical, but not thermal hyperalgesia. The acute analgesic effect of AS was prevented by treatment with 1H-[1,2, 4]oxadiazolo[4,3,-a]quinoxalin-1-one (ODQ, a soluble guanylate cyclase inhibitor), KT5823 (an inhibitor of protein kinase G [PKG]) or glibenclamide (GLB, an ATP-sensitive potassium channel blocker). Chronic (7-14 days after CCI) treatment with AS (3 mg/kg, s.c.) promoted a sustained reduction of CCI-induced mechanical and thermal hyperalgesia. Acute AS treatment reduced CCI-induced spinal cord allograft inflammatory factor 1 (known as Iba-1), interleukin-1β (IL-1β), and ST2 receptor mRNA expression. Chronic AS treatment reduced CCI-induced spinal cord glial fibrillary acidic protein (GFAP), Iba-1, IL-1β, tumor necrosis factor-α (TNF-α), interleukin-33 (IL-33) and ST2 mRNA expression. Chronic treatment with AS (3 mg/kg, s.c.) did not alter aspartate aminotransferase, alanine aminotransferase, urea or creatinine plasma levels. Together, these results suggest that the acute analgesic effect of AS depends on activating the cGMP/PKG/ATP-sensitive potassium channel signaling pathway. Moreover, chronic AS diminishes CCI-induced mechanical and thermal hyperalgesia by reducing the activation of spinal cord microglia and astrocytes, decreasing TNF-α, IL-1β and IL-33 cytokines expression. This spinal cord immune modulation was more prominent in the chronic treatment with AS. Thus, nitroxyl limits CCI-induced neuropathic pain by reducing spinal cord glial cells activation.
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Affiliation(s)
- Daniela T Longhi-Balbinot
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid PR 445, Km 380, Cx. Postal 10.011, 86057-970, Londrina, Parana, Brazil
| | - Ana C Rossaneis
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid PR 445, Km 380, Cx. Postal 10.011, 86057-970, Londrina, Parana, Brazil
| | - Felipe A Pinho-Ribeiro
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid PR 445, Km 380, Cx. Postal 10.011, 86057-970, Londrina, Parana, Brazil
| | - Mariana M Bertozzi
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid PR 445, Km 380, Cx. Postal 10.011, 86057-970, Londrina, Parana, Brazil
| | - Fernando Q Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, 14049-900, São Paulo, Brazil
| | - José C Alves-Filho
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, 14049-900, São Paulo, Brazil
| | - Thiago M Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes, 3900, Ribeirão Preto, 14049-900, São Paulo, Brazil
| | - Jean P S Peron
- Department of Immunology, Institute of Biomedical Sciences, Ed. Biomédicas IV, University of Sao Paulo, Av. Prof. Dr. Lineu Prestes, 1730, 05508-900, São Paulo, Brazil
| | - Katrina M Miranda
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA
| | - Rubia Casagrande
- Department of Pharmaceutical Sciences, University Hospital (Health Science Centre), Av. Robert Koch, 60, 86038-350, State University of Londrina, Parana, Brazil
| | - Waldiceu A Verri
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid PR 445, Km 380, Cx. Postal 10.011, 86057-970, Londrina, Parana, Brazil.
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10
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Yousefifard M, Nasirinezhad F, Shardi Manaheji H, Janzadeh A, Hosseini M, Keshavarz M. Human bone marrow-derived and umbilical cord-derived mesenchymal stem cells for alleviating neuropathic pain in a spinal cord injury model. Stem Cell Res Ther 2016; 7:36. [PMID: 26957122 PMCID: PMC4784350 DOI: 10.1186/s13287-016-0295-2] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 02/03/2016] [Accepted: 02/17/2016] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Stem cell therapy can be used for alleviating the neuropathic pain induced by spinal cord injuries (SCIs). However, survival and differentiation of stem cells following their transplantation vary depending on the host and intrinsic factors of the cell. Therefore, the present study aimed to determine the effect of stem cells derived from bone marrow (BM-MSC) and umbilical cord (UC-MSC) on neuropathic pain relief. METHODS A compression model was used to induce SCI in a rat model. A week after SCI, about 1 million cells were transplanted into the spinal cord. Behavioral tests, including motor function recovery, mechanical allodynia, cold allodynia, mechanical hyperalgesia, and thermal hyperalgesia, were carried out every week for 8 weeks after SCI induction. A single unit recording and histological evaluation were then performed. RESULTS We show that BM-MSC and UC-MSC transplantations led to improving functional recovery, allodynia, and hyperalgesia. No difference was seen between the two cell groups regarding motor recovery and alleviating the allodynia and hyperalgesia. These cells survived in the tissue at least 8 weeks and prevented cavity formation due to SCI. However, survival rate of UC-MSC was significantly higher than BM-MSC. Electrophysiological evaluations showed that transplantation of UC-MSC brings about better results than BM-MSCs in wind up of wide dynamic range neurons. CONCLUSIONS The results of the present study show that BM-MSC and UC-MSC transplantations alleviated the symptoms of neuropathic pain and resulted in subsequent motor recovery after SCI. However, survival rate and electrophysiological findings of UC-MSC were significantly better than BM-MSC.
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Affiliation(s)
- Mahmoud Yousefifard
- Electrophysiology Research Center, Tehran University of Medical Sciences, Tehran, Iran. .,Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Farinaz Nasirinezhad
- Physiology Research Center, Iran University of Medical Sciences, Tehran, Iran. .,Department of Physiology, Iran University of Medical Sciences, Tehran, Iran.
| | - Homa Shardi Manaheji
- Department of Physiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran. .,Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Atousa Janzadeh
- Physiology Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Mostafa Hosseini
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. .,Pediatric Chronic Kidney Disease Research Center, Childrens Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mansoor Keshavarz
- Electrophysiology Research Center, Tehran University of Medical Sciences, Tehran, Iran. .,Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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11
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Martins-Júnior JL, Bernardi MM, Bondan EF. Propentofylline treatment on open field behavior in rats with focal ethidium bromide-induced demyelination in the ventral surface of the brainstem. Life Sci 2016; 148:132-8. [PMID: 26872980 DOI: 10.1016/j.lfs.2016.02.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 01/25/2016] [Accepted: 02/08/2016] [Indexed: 10/22/2022]
Abstract
Propentofylline (PPF) is a xanthine derivative with pharmacological effects that are distinct from those of classic methylxanthines. It depresses the activation of microglial cells and astrocytes, which is associated with neuronal damage during neural inflammation and hypoxia. Our previous studies showed that PPF improved remyelination following gliotoxic lesions that were induced by ethidium bromide (EB). In the present study, the long-term effects of PPF on open field behavior in rats with EB-induced focal demyelination were examined. The effects of PPF were first evaluated in naive rats that were not subjected to EB lesions. Behavior in the beam walking test was also evaluated during chronic PPF treatment because impairments in motor coordination can interfere with behavior in the open field. The results showed that PPF treatment in unlesioned rats decreased general activity and caused motor impairment in the beam walking test. Gliotoxic EB injections increased general activity in rats that were treated with PPF compared with rats that received saline solution. Motor incoordination was also attenuated in PPF-treated rats. These results indicate that PPF reversed the effects of EB lesions on behavior in the open field and beam walking test.
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Affiliation(s)
- J L Martins-Júnior
- Post-Graduate Program in Environmental and Experimental Pathology, Universidade Paulista, São Paulo, SP, Brazil
| | - M M Bernardi
- Post-Graduate Program in Environmental and Experimental Pathology, Universidade Paulista, São Paulo, SP, Brazil.
| | - E F Bondan
- Post-Graduate Program in Environmental and Experimental Pathology, Universidade Paulista, São Paulo, SP, Brazil
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12
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Lefèvre Y, Amadio A, Vincent P, Descheemaeker A, Oliet SHR, Dallel R, Voisin DL. Neuropathic pain depends upon D-serine co-activation of spinal NMDA receptors in rats. Neurosci Lett 2015; 603:42-7. [PMID: 26182881 DOI: 10.1016/j.neulet.2015.07.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 06/20/2015] [Accepted: 07/05/2015] [Indexed: 12/30/2022]
Abstract
Activation of N-methyl-d-aspartate (NMDA) receptors is critical for hypersensitivity in chronic neuropathic pain. Since astroglia can regulate NMDA receptor activation by releasing the NMDA receptor co-agonist d-serine, we investigated the role of NMDA receptor and d-serine in neuropathic chronic pain. Male Wistar rats underwent right L5-L6 spinal nerve ligation or sham surgery and were tested for mechanical allodynia and hyperalgesia after 14 days. Acute intrathecal administration of the NMDA receptor antagonist d-AP5 as well as chronic administration of the glia metabolism inhibitor fluoroacetate significantly reduced mechanical allodynia in neuropathic rats. The effect of fluoroacetate was reversed by acutely administered intrathecal d-serine. Degrading d-serine using acute intrathecal administration of d-aminoacid oxidase also reduced pain symptoms. Immunocytochemistry showed that about 70% of serine racemase, the synthesizing enzyme of d-serine, was expressed in astrocyte processes in the superficial laminae of L5 dorsal horn. Serine racemase expression was upregulated in astrocyte processes in neuropathic rats compared to sham rats. These results show that neuropathic pain depends upon glial d-serine that co-activates spinal NMDA receptors.
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Affiliation(s)
- Yan Lefèvre
- Neurocentre Magendie, Inserm U862, F-33000 Bordeaux, France; Univ. Bordeaux, F-33000 Bordeaux, France
| | - Aurélie Amadio
- Neurocentre Magendie, Inserm U862, F-33000 Bordeaux, France; Univ. Bordeaux, F-33000 Bordeaux, France
| | - Peggy Vincent
- Neurocentre Magendie, Inserm U862, F-33000 Bordeaux, France; Univ. Bordeaux, F-33000 Bordeaux, France
| | - Amélie Descheemaeker
- Clermont Université, Université d'Auvergne, NEURO-DOL, BP 10448, F-63000 Clermont-Ferrand, Inserm, U1107, F-63001 Clermont-Ferrand, France
| | - Stéphane H R Oliet
- Neurocentre Magendie, Inserm U862, F-33000 Bordeaux, France; Univ. Bordeaux, F-33000 Bordeaux, France
| | - Radhouane Dallel
- Clermont Université, Université d'Auvergne, NEURO-DOL, BP 10448, F-63000 Clermont-Ferrand, Inserm, U1107, F-63001 Clermont-Ferrand, France
| | - Daniel L Voisin
- Neurocentre Magendie, Inserm U862, F-33000 Bordeaux, France; Univ. Bordeaux, F-33000 Bordeaux, France.
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13
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Feng W, Teng R, Zhao Y, Gao J, Chu H. Epigenetic modulation of Wnt signaling contributes to neuropathic pain in rats. Mol Med Rep 2015; 12:4727-4733. [PMID: 26096038 DOI: 10.3892/mmr.2015.3972] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Accepted: 05/15/2015] [Indexed: 11/05/2022] Open
Abstract
Previous studies have demonstrated that the Wnt/β‑catenin signaling pathway is critical to the induction and maintenance of chronic neuropathic pain caused by peripheral inflammation and nerve damage. Emerging evidence from recent studies suggests that epigenetic mechanisms may also be critical to the pathogenesis of chronic pain. The present study aimed to elucidate the epigenetic mechanisms underlying altered Wnt signaling and their involvement in CCI‑induced neuropathic pain in rat sciatic nerves. The results of the present study demonstrated a significant increase in the expression levels of Wnt3a in the dorsal horn of the rats with CCI. In addition, a significant increase in histone H3 acetylation, and a significant decrease in cytosine methylation in the promoter region of Wnt3a was observed in the dorsal horn of the rats with CCI. Intrathecal application of XAV939, which acts as an inhibitor of Wnt signaling, significantly decreased the expression levels of active β‑catenin, and attenuated the rat behavioral responses to thermal and mechanical pain stimuli. These results suggest that the epigenetic upregulation of Wnt3a in the dorsal horn contributes to the maintenance of pain‑induced behavior in rats with CCI.
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Affiliation(s)
- Wei Feng
- Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Ruynag Teng
- Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Yang Zhao
- Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Jie Gao
- Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Haichen Chu
- Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266021, P.R. China
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14
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Gallo A, Dimiziani A, Damblon J, Michot B, Des Rieux A, De Kock M, Hermans E, Deumens R. Modulation of spinal glial reactivity by intrathecal PPF is not sufficient to inhibit mechanical allodynia induced by nerve crush. Neurosci Res 2015; 95:78-82. [PMID: 25697394 DOI: 10.1016/j.neures.2015.02.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 01/29/2015] [Accepted: 02/07/2015] [Indexed: 12/16/2022]
Abstract
Spinal glial reactivity has been strongly implicated in pain that follows peripheral nerve injury. Among the many therapeutic agents that have been tested for anti-allodynia through immune modulation is the atypical methylxanthine propentofylline. While propentofylline shows a potent anti-allodynia effect after nerve transection injury, we here demonstrate that, when propentofylline is used intrathecally at the effective immune-modulatory dose, allodynia after rat nerve crush injury is completely preserved. Microglial/macrophage Iba-1 and astrocytic GFAP expression, increased in the dorsal horn of nerve crushed animals, was, however, effectively attenuated by propentofylline. Effective modulation of spinal glial reactivity is, thus, no assurance for anti-allodynia.
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Affiliation(s)
- Alessandro Gallo
- Institute of Neuroscience, Université catholique de Louvain, Avenue Hippocrate B1.54.10, 1200 Brussels, Belgium
| | - Andrea Dimiziani
- Institute of Neuroscience, Université catholique de Louvain, Avenue Hippocrate B1.54.10, 1200 Brussels, Belgium
| | - Jonathan Damblon
- Institute of Neuroscience, Université catholique de Louvain, Avenue Hippocrate B1.54.10, 1200 Brussels, Belgium
| | - Benoît Michot
- Institute of Neuroscience, Université catholique de Louvain, Avenue Hippocrate B1.54.10, 1200 Brussels, Belgium
| | - Anne Des Rieux
- Louvain Drug Research Institute, Pharmaceutics and Drug Delivery Unit, Avenue E. Mounier 73, 1200 Brussels, Belgium
| | - Marc De Kock
- Institute of Neuroscience, Université catholique de Louvain, Avenue Hippocrate B1.54.10, 1200 Brussels, Belgium
| | - Emmanuel Hermans
- Institute of Neuroscience, Université catholique de Louvain, Avenue Hippocrate B1.54.10, 1200 Brussels, Belgium
| | - Ronald Deumens
- Institute of Neuroscience, Université catholique de Louvain, Avenue Hippocrate B1.54.10, 1200 Brussels, Belgium.
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15
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Ge Y, Wu F, Sun X, Xiang Z, Yang L, Huang S, Lu Z, Sun Y, Yu WF. Intrathecal infusion of hydrogen-rich normal saline attenuates neuropathic pain via inhibition of activation of spinal astrocytes and microglia in rats. PLoS One 2014; 9:e97436. [PMID: 24857932 PMCID: PMC4032255 DOI: 10.1371/journal.pone.0097436] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Accepted: 04/17/2014] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Reactive oxygen and nitrogen species are key molecules that mediate neuropathic pain. Although hydrogen is an established antioxidant, its effect on chronic pain has not been characterized. This study was to investigate the efficacy and mechanisms of hydrogen-rich normal saline induced analgesia. METHODOLOGY/PRINCIPAL FINDINGS In a rat model of neuropathic pain induced by L5 spinal nerve ligation (L5 SNL), intrathecal injection of hydrogen-rich normal saline relieved L5 SNL-induced mechanical allodynia and thermal hyperalgesia. Importantly, repeated administration of hydrogen-rich normal saline did not lead to tolerance. Preemptive treatment with hydrogen-rich normal saline prevented development of neuropathic pain behavior. Immunofluorochrome analysis revealed that hydrogen-rich normal saline treatment significantly attenuated L5 SNL-induced increase of 8-hydroxyguanosine immunoreactive cells in the ipsilateral spinal dorsal horn. Western blot analysis of SDS/PAGE-fractionated tyrosine-nitrated proteins showed that L5 SNL led to increased expression of tyrosine-nitrated Mn-containing superoxide dismutase (MnSOD) in the spinal cord, and hydrogen-rich normal saline administration reversed the tyrosine-nitrated MnSOD overexpression. We also showed that the analgesic effect of hydrogen-rich normal saline was associated with decreased activation of astrocytes and microglia, attenuated expression of interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) in the spinal cord. CONCLUSION/SIGNIFICANCE Intrathecal injection of hydrogen-rich normal saline produced analgesic effect in neuropathic rat. Hydrogen-rich normal saline-induced analgesia in neuropathic rats is mediated by reducing the activation of spinal astrocytes and microglia, which is induced by overproduction of hydroxyl and peroxynitrite.
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Affiliation(s)
- Yanhu Ge
- Department of Anesthesiology, Eastern Hepatobiliary Surgery Hospital, Changhai Hospital, Second Military Medical University, Shanghai, China
- Department of Anesthesiology, 309th Hospital of CPLA, Beijing, China
| | - Feixiang Wu
- Department of Anesthesiology, Eastern Hepatobiliary Surgery Hospital, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xuejun Sun
- Department of Diving Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai, China
| | - Zhenghua Xiang
- Department of Neurobiology, Second Military Medical University, Shanghai, China
| | - Liqun Yang
- Department of Anesthesiology, Eastern Hepatobiliary Surgery Hospital, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Shengdong Huang
- Department of Cardiothoracic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhijie Lu
- Department of Anesthesiology, Eastern Hepatobiliary Surgery Hospital, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Yuming Sun
- Department of Anesthesiology, Eastern Hepatobiliary Surgery Hospital, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Wei-Feng Yu
- Department of Anesthesiology, Eastern Hepatobiliary Surgery Hospital, Changhai Hospital, Second Military Medical University, Shanghai, China
- * E-mail:
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