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Fu GJ, Wang LD, Chi XS, Liang X, Wei JJ, Huang ZH, Shen W, Zhang YL. Research Progress on the Experimental Model and Underlying Mechanistic Studies of Tension-Type Headaches. Curr Pain Headache Rep 2024; 28:439-451. [PMID: 38502437 PMCID: PMC11126509 DOI: 10.1007/s11916-024-01238-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2024] [Indexed: 03/21/2024]
Abstract
PURPOSE OF REVIEW Tension-type headaches (TTH) significantly diminish patients' quality of life and increase absenteeism, thereby imposing a substantial economic burden. Animal models are essential tools for studying disease mechanisms and drug development. However, until now, little focus has been placed on summarizing the animal models of TTH and associated mechanistic studies. This narrative review discusses the current animal models of TTH and related mechanistic studies to provide insights into the pathophysiological mechanisms of and treatments for TTH. RECENT FINDINGS The primary method for constructing an animal model of TTH involves injecting a solution of pain relievers, such as adenosine triphosphate, nerve growth factor, or a high concentration of salt solution, into the neck to initiate harmful cervical muscle responses. This model enables the examination of the interaction between peripheral muscles and central sensitization, which is crucial for understanding the pathophysiology of TTH. Mechanistic studies based on this model have investigated the effect of the P2X receptor antagonist, P2X7 receptor blockade, the P2Y1 receptor agonist 2-MESADP, P2Y1 receptor antagonist MRS2179, nitric oxide synthase inhibitors, and acetylsalicylic acid. Despite notable advancements, the current model of TTH has limitations, including surgical complexity and the inability to replicate chronic tension-type headache (CTTH). To gain a more comprehensive understanding and develop more effective treatment methods, future studies should focus on simplifying surgical procedures, examining other predisposing factors, and establishing a model for chronic TTH. This will offer a deeper insight into the pathophysiological mechanism of TTH and pave the way for improved treatment approaches.
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Affiliation(s)
- Guo-Jing Fu
- Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100,091, China
| | - Liu-Ding Wang
- Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100,091, China
| | - Xian-Su Chi
- Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100,091, China
| | - Xiao Liang
- Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100,091, China
| | - Jing-Jing Wei
- Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100,091, China
| | - Zhi-Hong Huang
- Yidu Central Hospital of Weifang, Weifang, 262,550, China
| | - Wei Shen
- Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100,091, China.
| | - Yun-Ling Zhang
- Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100,091, China.
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Reho G, Menger Y, Goumon Y, Lelièvre V, Cadiou H. Behavioral and pharmacological characterization of planarian nociception. Front Mol Neurosci 2024; 17:1368009. [PMID: 38751713 PMCID: PMC11094297 DOI: 10.3389/fnmol.2024.1368009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 04/11/2024] [Indexed: 05/18/2024] Open
Abstract
Introduction Pain mostly arises because specialized cells called nociceptors detect harmful or potentially harmful stimuli. In lower animals with less convoluted nervous system, these responses are believed to be purely nociceptive. Amongst invertebrate animal models, planarians are becoming popular in a wide range of pharmacological and behavioral studies beyond the field of regeneration. Recent publications led the way on pain studies by focusing on nociceptive behaviors such as the 'scrunching' gait displayed under various noxious stimuli, as opposed to the 'gliding' gait planarians usually adopt in normal conditions. Methods In this study, we adapted commonly used nociceptive tests to further explore nociception in planarians of the species Girardia dorotocephala. By using behavioral analysis in open fields and place preferences, we managed to set up chemical, thermal and mechanical nociceptive tests. We also adapted RNA interference protocols and explored the effects of knocking down TRPA1 ion channels, one of the main effectors of chemically and thermally-induced nociceptive responses in vertebrates. Results Consequently, we demonstrated the reliability of the scrunching gait in this planarian species, which they displayed in a dose-dependent manner when exposed to the irritant AITC. We also showed that suppressing the expression of TRPA1 ion channels completely suppressed the scrunching gait, demonstrating the involvement of TRPA1 nociceptors in this nociceptive reaction. Besides, we also explored the effects of two common analgesics that both displayed strong antinociceptive properties. First, morphine reduced the chemically-induced nociceptive scrunching gaits by more than 20% and shifted the E C 50 of the dose-response curve by approximately 10 μM. Secondly, the NSAID meloxicam drastically reduced chemically-induced scrunching by up to 60% and reduced heat avoidance in place preference tests. Discussion Thus, we managed to characterize both behavioral and pharmacological aspects of G. dorotocephala's nociception, further developing the use of planarians as a replacement model in pain studies and more globally the study of invertebrate nociception.
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Affiliation(s)
| | | | | | | | - Hervé Cadiou
- CNRS UPR 3212, Institut des Neurosciences Cellulaires et Intégratives, Centre National de la Recherche Scientifique and Université de Strasbourg, Strasbourg, France
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Goh MPY, Samsul RN, Mohaimin AW, Goh HP, Zaini NH, Kifli N, Ahmad N. The Analgesic Potential of Litsea Species: A Systematic Review. Molecules 2024; 29:2079. [PMID: 38731572 PMCID: PMC11085224 DOI: 10.3390/molecules29092079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Various plant species from the Litsea genus have been claimed to be beneficial for pain relief. The PRISMA approach was adopted to identify studies that reported analgesic properties of plants from the Litsea genus. Out of 450 records returned, 19 primary studies revealed the analgesic potential of nine Litsea species including (1) Litsea cubeba, (2) Litsea elliptibacea, (3) Litsea japonica, (4) Litsea glutinosa, (5) Litsea glaucescens, (6) Litsea guatemalensis, (7) Litsea lancifolia, (8) Litsea liyuyingi and (9) Litsea monopetala. Six of the species, 1, 3, 4, 7, 8 and 9, demonstrated peripheral antinociceptive properties as they inhibited acetic-acid-induced writhing in animal models. Species 1, 3, 4, 8 and 9 further showed effects via the central analgesic route at the spinal level by increasing the latencies of heat stimulated-nocifensive responses in the tail flick assay. The hot plate assay also revealed the efficacies of 4 and 9 at the supraspinal level. Species 6 was reported to ameliorate hyperalgesia induced via partial sciatic nerve ligation (PSNL). The antinociceptive effects of 1 and 3 were attributed to the regulatory effects of their bioactive compounds on inflammatory mediators. As for 2 and 5, their analgesic effect may be a result of their activity with the 5-hydroxytryptamine 1A receptor (5-HT1AR) which disrupted the pain-stimulating actions of 5-HT. Antinociceptive activities were documented for various major compounds of the Litsea plants. Overall, the findings suggested Litsea species as good sources of antinociceptive compounds that can be further developed to complement or substitute prescription drugs for pain management.
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Affiliation(s)
- May Poh Yik Goh
- Herbal Research Group, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei; (M.P.Y.G.); (R.N.S.); (A.W.M.); (N.K.)
- PAP Rashidah Saádatul Bolkiah Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei;
| | - Raudhatun Na’emah Samsul
- Herbal Research Group, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei; (M.P.Y.G.); (R.N.S.); (A.W.M.); (N.K.)
- Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei
| | - Amal Widaad Mohaimin
- Herbal Research Group, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei; (M.P.Y.G.); (R.N.S.); (A.W.M.); (N.K.)
- Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei
| | - Hui Poh Goh
- PAP Rashidah Saádatul Bolkiah Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei;
| | - Nurul Hazlina Zaini
- UBD Botanical Research Centre, Institute for Biodiversity and Environmental Research, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei;
| | - Nurolaini Kifli
- Herbal Research Group, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei; (M.P.Y.G.); (R.N.S.); (A.W.M.); (N.K.)
- PAP Rashidah Saádatul Bolkiah Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei;
| | - Norhayati Ahmad
- Herbal Research Group, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei; (M.P.Y.G.); (R.N.S.); (A.W.M.); (N.K.)
- Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei
- UBD Botanical Research Centre, Institute for Biodiversity and Environmental Research, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Bandar Seri Begawan BE 1410, Brunei;
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Sheardown E, Mech AM, Petrazzini MEM, Leggieri A, Gidziela A, Hosseinian S, Sealy IM, Torres-Perez JV, Busch-Nentwich EM, Malanchini M, Brennan CH. Translational relevance of forward genetic screens in animal models for the study of psychiatric disease. Neurosci Biobehav Rev 2022; 135:104559. [PMID: 35124155 PMCID: PMC9016269 DOI: 10.1016/j.neubiorev.2022.104559] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 12/10/2021] [Accepted: 02/01/2022] [Indexed: 12/16/2022]
Abstract
Psychiatric disorders represent a significant burden in our societies. Despite the convincing evidence pointing at gene and gene-environment interaction contributions, the role of genetics in the etiology of psychiatric disease is still poorly understood. Forward genetic screens in animal models have helped elucidate causal links. Here we discuss the application of mutagenesis-based forward genetic approaches in common animal model species: two invertebrates, nematodes (Caenorhabditis elegans) and fruit flies (Drosophila sp.); and two vertebrates, zebrafish (Danio rerio) and mice (Mus musculus), in relation to psychiatric disease. We also discuss the use of large scale genomic studies in human populations. Despite the advances using data from human populations, animal models coupled with next-generation sequencing strategies are still needed. Although with its own limitations, zebrafish possess characteristics that make them especially well-suited to forward genetic studies exploring the etiology of psychiatric disorders.
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Affiliation(s)
- Eva Sheardown
- School of Biological and Behavioural Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, England, UK
| | - Aleksandra M Mech
- School of Biological and Behavioural Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, England, UK
| | | | - Adele Leggieri
- School of Biological and Behavioural Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, England, UK
| | - Agnieszka Gidziela
- School of Biological and Behavioural Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, England, UK
| | - Saeedeh Hosseinian
- School of Biological and Behavioural Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, England, UK
| | - Ian M Sealy
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Department of Medicine, University of Cambridge, Cambridge, UK
| | - Jose V Torres-Perez
- UK Dementia Research Institute at Imperial College London and Department of Brain Sciences, Imperial College London, 86 Wood Lane, London W12 0BZ, UK
| | - Elisabeth M Busch-Nentwich
- School of Biological and Behavioural Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, England, UK
| | - Margherita Malanchini
- School of Biological and Behavioural Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, England, UK
| | - Caroline H Brennan
- School of Biological and Behavioural Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, England, UK.
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Lee HJ, Lim HM, Feng JH, Lee JM, Lee JT, Suh HW. Antinociceptive effect of N-(9,13b-dihydro-1H-dibenzo[c,f]imidazo[1,5-a]azepin-3-yl)-2-hydroxybenzamide on different pain models in mice. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e20030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Hee-Jung Lee
- Hallym University, Korea; Hallym University, Korea
| | | | | | | | | | - Hong-Won Suh
- Hallym University, Korea; Hallym University, Korea
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Wang R, Gan J, Li R, Duan J, Zhou J, Lv M, Qi R. Controlled delivery of ketamine from reduced graphene oxide hydrogel for neuropathic pain: In vitro and in vivo studies. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101964] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Zhang H, Zhao Z, Chen W, Lv M, Cheng J, Sun Z. In vitro and in vivo studies of micro-depots using tailored microemulsion for sustained local anaesthesia. Pharm Dev Technol 2020; 25:874-881. [PMID: 32274946 DOI: 10.1080/10837450.2020.1754425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
In clinical practice, lidocaine is used as local anesthetic for the management of post-operative pain. The commercial formulation including gels, injections and ointments showed short duration of action (1 to 2 h). In this paper, the efforts have being made to develop tailored lidocaine-microemulsion (o/w), which on penetration in the skin layer cause micro-depots formation due to destabilization of the microemulsion system. To identify the microemulsion region, pseudo ternary diagrams were constructed using Capmul MCM as oil, Pluronic F68 as tri-block surfactant, polyethylene glycol 200 as co-surfactant at 1:4 and 1:6 ratios (S:Co-S). The selected 5%w/v lidocaine loaded microemulsion [Ld-ME-2(1:4)] was stable in thermodynamic test and during shelf life period (3 months). In ex vivo permeability study, the lidocaine release from Ld-ME-2(1:4) microemulsion was sustained in comparison to the marketed lidocaine ointment. The skin irritation study confirmed the safety of lidocaine loaded microemulsion. Tail flick test showed improved and sustain local anaesthetic effect in comparison to the market ointment. The improved efficacy of microemulsion system, was due to high penetration in the skin layer due to local precipitation of lidocaine from microemulsion. The findings suggest that the tailored microemulsion could be a potential strategy to prolong the local anaesthesia.
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Affiliation(s)
- Haiping Zhang
- Department of Anesthesiology, The Fourth Affiliated Hospital of Nanchang University, Jiangxi, China
| | - Zeyu Zhao
- Department of Anesthesiology, Sichuan Bayi Rehabilitation Center (Sichuan Provincial Rehabilitation Hospital), Chengdu, China
| | - Wenjia Chen
- Department of Anesthesiology, Taizhou People's Hospital, Taizhou, China
| | - Miaomiao Lv
- Department of Anesthesiology, The 323 Hospital of PLA, Xi'an, China
| | - Junmei Cheng
- Department of Pathology, Central Laboratory of Heze Medical College, Heze, China
| | - Zhihua Sun
- Department of Anesthesiology, Xiangya Hospital Central South University, Changsha, China
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Zhao Z, Lian Y, Zhu Y, Ye H, Liu M, Li J. Depot lidocaine-loaded microemulsion for prolonged local anesthesia: Different efficacy model studies. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2019.101404] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Lidocaine tripotassium phosphate complex laden microemulsion for prolonged local anaesthesia: In vitro and in vivo studies. Colloids Surf B Biointerfaces 2020; 185:110632. [DOI: 10.1016/j.colsurfb.2019.110632] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/31/2019] [Accepted: 11/07/2019] [Indexed: 12/28/2022]
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Saraçoğlu ÖK, Uludağ MO, Özdemir ED, Değim İT. Development of controlled release dexketoprofen tablets and prediction of drug release using Artificial Neural Network (ANN) modelling. BRAZ J PHARM SCI 2020. [DOI: 10.1590/s2175-97902019000418540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Abd El-Alim SH, Kassem AA, Basha M, Salama A. Comparative study of liposomes, ethosomes and transfersomes as carriers for enhancing the transdermal delivery of diflunisal: In vitro and in vivo evaluation. Int J Pharm 2019; 563:293-303. [DOI: 10.1016/j.ijpharm.2019.04.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/31/2019] [Accepted: 04/01/2019] [Indexed: 12/23/2022]
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Baskın V, Bilge SS, Bozkurt A, Akyüz B, Ağrı AE, Güzel H, İlkaya F. Effect of nonsteroidal anti-inflammatory drugs on colorectal distension-induced visceral pain. Indian J Pharmacol 2017; 48:150-4. [PMID: 27114637 PMCID: PMC4825431 DOI: 10.4103/0253-7613.178830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Objectives: To investigate nonsteroidal anti-inflammatory drugs effectiveness in colorectal distension (CRD)-induced visceral pain model. Materials and Methods: Male Sprague–Dawley (250–300 g) rats were anesthetized with ketamine (50 mg/kg, intraperitoneally [i.p.]) and chlorpromazine (25 mg/kg, i.p.). Two bipolar Teflon-coated Ni/Cr wire electrodes (80-M diameter) were placed in the abdominal external oblique muscle for the recording of electromyography. Jugular vein catheter was placed for the administration of drugs. CRD method was applied to evaluate of visceral pain. All drugs (paracetamol, meloxicam, metamizole, and dexketoprofen) administered intravenously. Results: Paracetamol 200, 400, and 600 mg/kg did not change the visceromotor response (VMR) when compare with the control group. Meloxicam 2 and 4 mg/kg showed no effect but at doses of 6 mg/kg meloxicam significantly ([51.9 ± 6.4%] [P < 0.001]) decreased VMR compared with the control group. Metamizole 200 mg/kg did not change responses but dose of 400 and 600 mg/kg metamizole reduced VMR. Dexketoprofen 2 and 4 mg/kg did not cause a change in VMR but 6 mg/kg dose significantly reduced response compared with the control group ([43.9 ± 3.9%, 36.8 ± 2.8%, 34.8 ± 2.5%, 42.1 ± 4.8%, 40.7 ± 3.5%, 36.4 ± 2.7%, and 26.1 ± 2.2%]; from 10 min to 70 min, respectively, [P < 0.05]). Conclusion: Metamizole, dexketoprofen and meloxicam show antinociceptive effect with different duration of action on CRD-induced visceral pain model. This condition can be explained due to different chemical structures and different mechanisms which play a role in modulation of pain.
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Affiliation(s)
- Veysel Baskın
- Department of Pharmacology, Medical Faculty, University of Ondokuz Mayis, Samsun, Turkey
| | - S Sırrı Bilge
- Department of Pharmacology, Medical Faculty, University of Ondokuz Mayis, Samsun, Turkey
| | - Ayhan Bozkurt
- Department of Physiology, Medical Faculty, University of Ondokuz Mayis, Samsun, Turkey
| | - Bahar Akyüz
- Department of Pharmacology, Medical Faculty, University of Ondokuz Mayis, Samsun, Turkey
| | - Arzu Erdal Ağrı
- Department of Pharmacology, Medical Faculty, University of Ondokuz Mayis, Samsun, Turkey
| | - Hasan Güzel
- Department of Pharmacology, Medical Faculty, University of Ondokuz Mayis, Samsun, Turkey
| | - Fatih İlkaya
- Department of Pharmacology, Medical Faculty, University of Ondokuz Mayis, Samsun, Turkey
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Silva LCR, Castor MGME, Navarro LC, Romero TRL, Duarte IDG. κ-Opioid receptor participates of NSAIDs peripheral antinociception. Neurosci Lett 2016; 622:6-9. [DOI: 10.1016/j.neulet.2016.04.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 04/11/2016] [Accepted: 04/13/2016] [Indexed: 11/27/2022]
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Hou J, Xia Z, Xiao X, Wan X, Zhao B. Neurotoxicity of intrathecal injections of dexmedetomidine into the rat spinal dorsal horn. Neural Regen Res 2015; 7:1765-70. [PMID: 25624799 PMCID: PMC4302524 DOI: 10.3969/j.issn.1673-5374.2012.23.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Accepted: 03/06/2012] [Indexed: 11/22/2022] Open
Abstract
To investigate the neurotoxicity of intrathecal injections of dexmedetomidine, Sprague-Dawley rats were intrathecally injected with dexmedetomidine at doses of 0.75, 1.50 and 3.00 μg/kg into the spinal dorsal horn. We found that c-Fos expression in the rat spinal dorsal horn peaked at 7 hours following the 3.00 μg/kg dexmedetomidine injection, while the levels of c-Fos expression following 0.75 and 1.50 μg/kg dexmedetomidine were similar to those in the spinal dorsal horn of normal rats. At 48 hours following administration, the level of c-Fos expression was similar to normal levels. In addition, the intrathecal injections of dexmedetomidine increased paw withdrawal mechanical thresholds and prolonged thermal tail flick latencies. These results indicate that dexmedetomidine has pronounced antinociceptive effects. However, dexmedetomidine appears to have neurotoxic effects in the spinal cord because it increased c-Fos expression in the spinal dorsal horn within 7 hours following administration.
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Affiliation(s)
- Jiabao Hou
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Zhongyuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Xingpeng Xiao
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Xing Wan
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Bo Zhao
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
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Nikolova I, Tencheva J, Voinikov J, Petkova V, Benbasat N, Danchev N. Metamizole: A Review Profile of a Well-Known “Forgotten” Drug. Part I: Pharmaceutical and Nonclinical Profile. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.5504/bbeq.2012.0089] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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López-Muñoz FJ, Moreno-Rocha LA, Bravo G, Guevara-López U, Domínguez-Ramírez AM, Déciga-Campos M. Enhancement of Antinociception but not Constipation by Combinations Containing Tramadol and Metamizole in Arthritic Rats. Arch Med Res 2013; 44:495-503. [DOI: 10.1016/j.arcmed.2013.09.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 08/26/2013] [Indexed: 10/26/2022]
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Boros M, Benkó R, Bölcskei K, Szolcsányi J, Barthó L, Pethő G. Effects of Reference Analgesics and Psychoactive Drugs on the Noxious Heat Threshold of Mice Measured by an Increasing-Temperature Water Bath. Basic Clin Pharmacol Toxicol 2013; 113:385-90. [DOI: 10.1111/bcpt.12119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 07/16/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Melinda Boros
- Department of Pharmacology and Pharmacotherapy; University of Pécs; Pécs Hungary
| | - Rita Benkó
- Department of Pharmacology and Pharmacotherapy; University of Pécs; Pécs Hungary
| | - Kata Bölcskei
- Department of Pharmacology and Pharmacotherapy; University of Pécs; Pécs Hungary
| | - János Szolcsányi
- Department of Pharmacology and Pharmacotherapy; University of Pécs; Pécs Hungary
| | - Loránd Barthó
- Department of Pharmacology and Pharmacotherapy; University of Pécs; Pécs Hungary
- Pharmacodynamics Unit; Department of Pharmacology and Pharmacotherapy; University of Pécs; Pécs Hungary
| | - Gábor Pethő
- Department of Pharmacology and Pharmacotherapy; University of Pécs; Pécs Hungary
- Pharmacodynamics Unit; Department of Pharmacology and Pharmacotherapy; University of Pécs; Pécs Hungary
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Dunder RJ, Luiz-Ferreira A, Almeida ACAD, Faria FMD, Takayama C, Socca EAR, Salvador MJ, Mello GC, dos Santos C, de Oliva-Neto P, Souza-Brito ARM. Applications of the hexanic fraction of Agave sisalana Perrine ex Engelm (Asparagaceae): control of inflammation and pain screening. Mem Inst Oswaldo Cruz 2013; 108:S0074-02762013000300263. [PMID: 23778651 PMCID: PMC4005567 DOI: 10.1590/s0074-02762013000300002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Accepted: 12/12/2012] [Indexed: 11/22/2022] Open
Abstract
The present study evaluated the anti-inflammatory and analgesic properties of Agave sisalana Perrine in classic models of inflammation and pain. The hexanic fraction of A. sisalana (HFAS) was obtained by acid hydrolysis followed by hexanic reflux. Anti-inflammatory properties were examined in three acute mouse models (xylene ear oedema, hind paw oedema and pleurisy) and a chronic mouse model (granuloma cotton pellet). The antinociceptive potential was evaluated in chemical (acetic-acid) and thermal (tail-flick and hot-plate test) models of pain. When given orally, HFAS (5, 10, 25 and 50 mg/kg) reduced ear oedema (p < 0.0001; 52%, 71%, 62% and 42%, respectively). HFAS also reduced hind paw oedema at doses of 10 mg/kg and 25 mg/kg (p < 0.05; 42% and 58%, respectively) and pleurisy at doses of 10 mg/kg and 25 mg/kg (41% and 50%, respectively). In a chronic model, HFAS reduced inflammation by 46% and 58% at doses of 10 mg/kg and 25 mg/kg, respectively. Moreover, this fraction showed analgesic properties against the abdominal writhing in an acetic acid model (at doses of 5-25 mg/kg) with inhibitory rates of 24%, 54% and 48%. The HFAS also showed an increased latency time in the hot-plate (23% and 28%) and tail-flick tests (61% and 66%) for the 25 mg/kg and 50 mg/kg doses, respectively. These results suggest that HFAS has anti-inflammatory and analgesic properties.
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Affiliation(s)
- Ricardo José Dunder
- Departamento de Biologia Estrutural e Funcional, Universidade Estadual de Campinas, Campinas, SP, Brasil.
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Acetylsalicylic acid inhibits α,β-meATP-induced facilitation of neck muscle nociception in mice--implications for acute treatment of tension-type headache. Eur J Pharmacol 2011; 673:13-9. [PMID: 22032900 DOI: 10.1016/j.ejphar.2011.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Accepted: 10/10/2011] [Indexed: 12/27/2022]
Abstract
Infusion of α,β-methylene ATP (α,β-meATP) into murine neck muscle facilitates brainstem nociception. This animal experimental model is suggested to be appropriate for investigating pathophysiological mechanisms in tension-type headache. It was hypothesized that d-lysine acetylsalicylic acid (ASA, aspirin®) reverses this α,β-meATP effect. Facilitation of neck muscle nociceptive processing was induced via bilateral infusion of α,β-meATP into semispinal neck muscles (100 nM, 20 μl each) in 42 anesthetized mice. Brainstem nociception was monitored by the jaw-opening reflex elicited via electrical tongue stimulation. The hypothesis was addressed by subsequent (15, 30, 60 mg/kg) and preceding (60 mg/kg) intraperitoneal ASA injection. Saline served as control to ASA solution. Subsequent ASA dose-dependently reversed α,β-meATP-induced reflex facilitation and was the most prominent with 60 mg/kg. Preceding 60 mg/kg ASA prevented reflex facilitation. Cyclooxygenases are involved in nociceptive transmission. Former experiments showed that unspecific inhibition of cyclooxygenases does not alter the α,β-meATP effect. This suggests a specific mode of action of ASA. The concept is accepted that neck muscle nociception is involved in the pathophysiology of tension-type headache. Thus, objective proof of ASA effects in this experimental model may emphasize its major role in pharmacological treatment of tension-type headache attacks.
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Arrau S, Delporte C, Cartagena C, Rodríguez-Díaz M, González P, Silva X, Cassels BK, Miranda HF. Antinociceptive activity of Quillaja saponaria Mol. saponin extract, quillaic acid and derivatives in mice. JOURNAL OF ETHNOPHARMACOLOGY 2011; 133:164-167. [PMID: 20951193 DOI: 10.1016/j.jep.2010.09.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2010] [Revised: 09/16/2010] [Accepted: 09/17/2010] [Indexed: 05/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Quillaja saponaria bark contains a high percentage of triterpene saponins and has been used for centuries as a cleansing and analgesic agent in Chilean folk medicine. AIM OF THE STUDY The topical and systemic analgesic effects of a commercial partially purified saponin extract, 3β,16α-dihydroxy-23-oxoolean-12-en-28-oic acid (quillaic acid), methyl 3β,16α-dihydroxy-23-oxoolean-12-en-28-oate and methyl 4-nor-3,16-dioxoolean-12-en-28-oate. MATERIALS AND METHODS The samples were assessed in mice using the topical tail-flick and i.p. hot-plate tests, respectively. RESULTS All the samples showed activity in both analgesic tests in a dose-dependent manner. The most active against tail flick test was commercial partially purified saponin extract (EC50 27.9 mg%, w/v) and more than the ibuprofen sodium. On hot-plate test, methyl 4-nor-3, 16-dioxoolean-12-en-28-oate was the most active (ED50 12.2 mg/kg) and more than the ibuprofen sodium. CONCLUSIONS The results of the present study demonstrated that Quillaja saponaria saponins, quillaic acid, its methyl ester, and one of the oxidized derivatives of the latter, elicit dose-dependent antinociceptive effects in two murine thermal models.
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Affiliation(s)
- Sylvia Arrau
- Department of Pharmacological and Toxicological Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Santiago, Chile
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Painful dilemmas: the ethics of animal-based pain research. Anim Welf 2009. [DOI: 10.1017/s0962728600000063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
AbstractWhile it has the potential to deliver important human benefits, animal-based pain research raises ethical questions, because it involves inducing pain in sentient beings. Ethical decision-making, connected with this variety of research, requires informed harm-benefit analysis, and the aim of this paper is to provide information for such an analysis. We present an overview of the different models and their consequences for animal welfare, showing that, of the many animal models available, most have a considerable welfare impact on the animal. While the usual approach to pain control through administration of analgesic substances is usually unsuitable in pain research, refinement remains an option, both within the experimental protocol and in general husbandry and handling. Drawing on the overview, we develop a discussion of the ethical acceptability of animal-based pain research against the background of the kinds of harm done to the animals involved, the potential for refinement, and the expected benefits of the research.
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Abstract
This paper is the thirtieth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2007 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior, and the roles of these opioid peptides and receptors in pain and analgesia; stress and social status; tolerance and dependence; learning and memory; eating and drinking; alcohol and drugs of abuse; sexual activity and hormones, pregnancy, development and endocrinology; mental illness and mood; seizures and neurologic disorders; electrical-related activity and neurophysiology; general activity and locomotion; gastrointestinal, renal and hepatic functions; cardiovascular responses; respiration and thermoregulation; and immunological responses.
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, 65-30 Kissena Blvd.,Flushing, NY 11367, United States.
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Bonjardim LR, da Silva AP, Gameiro GH, Tambeli CH, Ferraz de Arruda Veiga MC. Nociceptive behavior induced by mustard oil injection into the temporomandibular joint is blocked by a peripheral non-opioid analgesic and a central opioid analgesic. Pharmacol Biochem Behav 2008; 91:321-6. [PMID: 18755210 DOI: 10.1016/j.pbb.2008.08.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2008] [Revised: 07/12/2008] [Accepted: 08/01/2008] [Indexed: 10/21/2022]
Abstract
The aim of this study was to improve the mustard oil (MO) induced temporomandibular joint (TMJ) nociception model and to investigate the potential analgesic activity of systemic dipyrone and tramadol on the nociceptive behavioral responses induced by injection of low concentrations of the MO into the rat TMJ region. TMJ injection of 2.5% MO produced a significant nociceptive behavior expressed by head flinching and orofacial rubbing. This activity was related to the MO injection since mineral oil (vehicle) did not elicit response. Local application of the lidocaine N-ethyl bromide quaternary salt, QX-314 (2%) and systemic administration of morphine (4 mg/kg) significantly reduced the MO-induced nociceptive responses, validating the nociceptive character of the behaviors. The pretreatment with systemic dipyrone (19, 57 or 95 mg/kg) as well as tramadol (5, 7.5 or 10 mg/kg) was effective in decreasing the nociceptive behavioral responses induced by the injection of MO into the rat TMJ. In conclusion, TMJ injection of low concentrations of MO in rats produces well defined and quantifiable nociceptive behaviors constituting a reliable behavioral model for studying TMJ pain mechanisms and testing analgesic drugs. The results also suggest that dipyrone and tramadol could be effective analgesic options in the management of TMJ pain.
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