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Raissi-Dehkordi N, Hajikarimloo B, Raissi-Dehkordi N, Khakpai F, Zarrindast MR. The additive effect between bupropion and citicoline upon induction of anti-nociceptive effect in nerve-ligated mice. Neurol Res 2024:1-8. [PMID: 38958173 DOI: 10.1080/01616412.2024.2370203] [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: 07/26/2023] [Accepted: 06/13/2024] [Indexed: 07/04/2024]
Abstract
OBJECTIVES Bupropion is an atypical antidepressant that shows robust efficacy in the regulation of neuropathic pain. Citicoline is a dietary supplement which is used as a neuroprotective agent for central nervous system (CNS) disorders. The probable interaction between bupropion and citicoline on neuropathic pain was assessed in male mice. METHODS Neuropathic pain was induced by sciatic nerve ligation. Neuropathic pain was examined in nerve-ligated mice using tail-flick and hot-plate tests. RESULTS The results indicated that intraperitoneal (i.p.) administration of citicoline (50 and 100 mg/kg) induced an anti-nociceptive effect in nerve-ligated animals. Similarly, i.p. injection of bupropion (2.5 and 5 mg/kg) induced anti-nociceptive effects in nerve-ligated mice. Co-administration of different doses of bupropion (2.5 and 5 mg/kg) along with a low dose of citicoline (25 mg/kg) caused an anti-nociceptive effect by enhancement of tail-flick and hot plate latencies. Interestingly, there is an additive effect between bupropion and citicoline upon the induction of the anti-nociceptive effect. CONCLUSIONS Based on these results, it can be concluded that there is an interaction between bupropion and citicoline upon induction of an anti-nociceptive effect in nerve-ligated mice.
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Affiliation(s)
| | - Bardia Hajikarimloo
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Fatemeh Khakpai
- Department of Physiology, Faculty of Medicine, Tehran Medical Sciences, 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
- Department of Cognitive Science, Institute for Cognitive Science Studies (ICSS), Tehran, Iran
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2
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Ma X, Zhu T, Ke J. Progress in animal models of trigeminal neuralgia. Arch Oral Biol 2023; 154:105765. [PMID: 37480619 DOI: 10.1016/j.archoralbio.2023.105765] [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] [Received: 01/12/2023] [Revised: 06/30/2023] [Accepted: 07/10/2023] [Indexed: 07/24/2023]
Abstract
OBJECTIVE This review aims to systematically summarize the methods of establishing various models of trigeminal neuralgia (TN), the scope of application, and current animals used in TN research and the corresponding pain measurements, hoping to provide valuable reference for researchers to select appropriate TN animal models and make contributions to the research of pathophysiology and management of the disease. DESIGN The related literatures of TN were searched through PubMed database using different combinations of the following terms and keywords including but not limited: animal models, trigeminal neuralgia, orofacial neuropathic pain. To find the maximum number of eligible articles, no filters were used in the search. The references of eligible studies were analyzed and reviewed comprehensively. RESULTS This study summarized the current animal models of TN, categorized them into the following groups: chemical induction, photochemical induction, surgery and genetic engineering, and introduced various measurement methods to evaluate animal pain behaviors. CONCLUSIONS Although a variety of methods are used to establish disease models, there is no ideal TN model that can reflect all the characteristics of the disease. Therefore, there is still a need to develop more novel animal models in order to further study the etiology, pathological mechanism and potential treatment of TN.
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Affiliation(s)
- Xiaohan Ma
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, China; Department of Oral and Maxillofacial Trauma and Temporomandibular Joint Surgery, Hubei-MOST KLOS & KLOBM, School & Hospital of Stomatology, Wuhan University, China
| | - Taomin Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, China; Department of Oral and Maxillofacial Trauma and Temporomandibular Joint Surgery, Hubei-MOST KLOS & KLOBM, School & Hospital of Stomatology, Wuhan University, China
| | - Jin Ke
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, China; Department of Oral and Maxillofacial Trauma and Temporomandibular Joint Surgery, Hubei-MOST KLOS & KLOBM, School & Hospital of Stomatology, Wuhan University, China.
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3
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Sanchez JE, Noor S, Sun MS, Zimmerly J, Pasmay A, Sanchez JJ, Vanderwall AG, Haynes MK, Sklar LA, Escalona PR, Milligan ED. The FDA-approved compound, pramipexole and the clinical-stage investigational drug, dexpramipexole, reverse chronic allodynia from sciatic nerve damage in mice, and alter IL-1β and IL-10 expression from immune cell culture. Neurosci Lett 2023; 814:137419. [PMID: 37558176 PMCID: PMC10552878 DOI: 10.1016/j.neulet.2023.137419] [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: 04/23/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/11/2023]
Abstract
During the onset of neuropathic pain from a variety of etiologies, nociceptors become hypersensitized, releasing neurotransmitters and other factors from centrally-projecting nerve terminals within the dorsal spinal cord. Consequently, glial cells (astrocytes and microglia) in the spinal cord are activated and mediate the release of proinflammatory cytokines that act to enhance pain transmission and sensitize mechanical non-nociceptive fibers which ultimately results in light touch hypersensitivity, clinically observed as allodynia. Pramipexole, a D2/D3 preferring agonist, is FDA-approved for the treatment of Parkinson's disease and demonstrates efficacy in animal models of inflammatory pain. The clinical-stage investigational drug, R(+) enantiomer of pramipexole, dexpramipexole, is virtually devoid of D2/D3 agonist actions and is efficacious in animal models of inflammatory and neuropathic pain. The current experiments focus on the application of a mouse model of sciatic nerve neuropathy, chronic constriction injury (CCI), that leads to allodynia and is previously characterized to generate spinal glial activation with consequent release IL-1β. We hypothesized that both pramipexole and dexpramipexole reverse CCI-induced chronic neuropathy in mice, and in human monocyte cell culture studies (THP-1 cells), pramipexole prevents IL-1β production. Additionally, we hypothesized that in rat primary splenocyte culture, dexpramixole increases mRNA for the anti-inflammatory and pleiotropic cytokine, interleukin-10 (IL-10). Results show that following intravenous pramipexole or dexpramipexole, a profound decrease in allodynia was observed by 1 hr, with allodynia returning 24 hr post-injection. Pramipexole significantly blunted IL-1β protein production from stimulated human monocytes and dexpramipexole induced elevated IL-10 mRNA expression from rat splenocytes. The data support that clinically-approved compounds like pramipexole and dexpramipexole support their application as anti-inflammatory agents to mitigate chronic neuropathy, and provide a blueprint for future, multifaceted approaches for opioid-independent neuropathic pain treatment.
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Affiliation(s)
- J E Sanchez
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - S Noor
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - M S Sun
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - J Zimmerly
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - A Pasmay
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - J J Sanchez
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - A G Vanderwall
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - M K Haynes
- Center for Molecular Discovery (CMD) Innovation, Discovery and Training Complex (IDTC), University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - L A Sklar
- Center for Molecular Discovery (CMD) Innovation, Discovery and Training Complex (IDTC), University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - P R Escalona
- Department of Psychiatry, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; New Mexico VA Health Care System, Albuquerque NM 87108, USA
| | - E D Milligan
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA.
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4
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Kozsurek M, Király K, Gyimesi K, Lukácsi E, Fekete C, Gereben B, Mohácsik P, Helyes Z, Bölcskei K, Tékus V, Pap K, Szűcs E, Benyhe S, Imre T, Szabó P, Gajtkó A, Holló K, Puskár Z. Unique, Specific CART Receptor-Independent Regulatory Mechanism of CART(55-102) Peptide in Spinal Nociceptive Transmission and Its Relation to Dipeptidyl-Peptidase 4 (DDP4). Int J Mol Sci 2023; 24:ijms24020918. [PMID: 36674439 PMCID: PMC9865214 DOI: 10.3390/ijms24020918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 12/09/2022] [Accepted: 12/14/2022] [Indexed: 01/06/2023] Open
Abstract
Cocaine- and amphetamine-regulated transcript (CART) peptides are involved in several physiological and pathological processes, but their mechanism of action is unrevealed due to the lack of identified receptor(s). We provided evidence for the antihyperalgesic effect of CART(55-102) by inhibiting dipeptidyl-peptidase 4 (DPP4) in astrocytes and consequently reducing neuroinflammation in the rat spinal dorsal horn in a carrageenan-evoked inflammation model. Both naturally occurring CART(55-102) and CART(62-102) peptides are present in the spinal cord. CART(55-102) is not involved in acute nociception but regulates spinal pain transmission during peripheral inflammation. While the full-length peptide with a globular motif contributes to hyperalgesia, its N-terminal inhibits this process. Although the anti-hyperalgesic effects of CART(55-102), CART(55-76), and CART(62-76) are blocked by opioid receptor antagonists in our inflammatory models, but not in neuropathic Seltzer model, none of them bind to any opioid or G-protein coupled receptors. DPP4 interacts with Toll-like receptor 4 (TLR4) signalling in spinal astrocytes and enhances the TLR4-induced expression of interleukin-6 and tumour necrosis factor alpha contributing to inflammatory pain. Depending on the state of inflammation, CART(55-102) is processed in the spinal cord, resulting in the generation of biologically active isoleucine-proline-isoleucine (IPI) tripeptide, which inhibits DPP4, leading to significantly decreased glia-derived cytokine production and hyperalgesia.
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Affiliation(s)
- Márk Kozsurek
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094 Budapest, Hungary
| | - Kornél Király
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, H-1089 Budapest, Hungary
| | - Klára Gyimesi
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094 Budapest, Hungary
- Department of Anaesthesiology, Uzsoki Hospital, H-1145 Budapest, Hungary
| | - Erika Lukácsi
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094 Budapest, Hungary
| | - Csaba Fekete
- Laboratory of Integrative Neuroendocrinology, Institute of Experimental Medicine, Eötvös Loránd Research Network, H-1083 Budapest, Hungary
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Tupper Research Institute, Tufts Medical Center, Boston, MA 02111, USA
| | - Balázs Gereben
- Laboratory of Integrative Neuroendocrinology, Institute of Experimental Medicine, Eötvös Loránd Research Network, H-1083 Budapest, Hungary
| | - Petra Mohácsik
- Laboratory of Integrative Neuroendocrinology, Institute of Experimental Medicine, Eötvös Loránd Research Network, H-1083 Budapest, Hungary
| | - Zsuzsanna Helyes
- Department of Pharmacology and Pharmacotherapy, University of Pécs, H-7624 Pécs, Hungary
- National Laboratory for Drug Research and Development, H-1117 Budapest, Hungary
- Chronic Pain Research Group, Eötvös Loránd Research Network, H-7624 Pécs, Hungary
| | - Kata Bölcskei
- Department of Pharmacology and Pharmacotherapy, University of Pécs, H-7624 Pécs, Hungary
| | - Valéria Tékus
- Department of Pharmacology and Pharmacotherapy, University of Pécs, H-7624 Pécs, Hungary
- National Laboratory for Drug Research and Development, H-1117 Budapest, Hungary
| | - Károly Pap
- Department of Orthopaedics and Traumatology, Uzsoki Hospital, H-1145 Budapest, Hungary
| | - Edina Szűcs
- Institute of Biochemistry, Biological Research Centre, Eötvös Loránd Research Network, H-6726 Szeged, Hungary
| | - Sándor Benyhe
- Institute of Biochemistry, Biological Research Centre, Eötvös Loránd Research Network, H-6726 Szeged, Hungary
| | - Tímea Imre
- MS Metabolomics Laboratory, Instrumentation Centre, Research Centre for Natural Sciences, Eötvös Loránd Research Network, H-1117 Budapest, Hungary
| | - Pál Szabó
- MS Metabolomics Laboratory, Instrumentation Centre, Research Centre for Natural Sciences, Eötvös Loránd Research Network, H-1117 Budapest, Hungary
| | - Andrea Gajtkó
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Krisztina Holló
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Zita Puskár
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094 Budapest, Hungary
- Correspondence:
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Foudah AI, Alqarni MH, Devi S, Singh A, Alam A, Alam P, Singh S. Analgesic Action of Catechin on Chronic Constriction Injury–Induced Neuropathic Pain in Sprague–Dawley Rats. Front Pharmacol 2022; 13:895079. [PMID: 36034867 PMCID: PMC9403238 DOI: 10.3389/fphar.2022.895079] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 04/25/2022] [Indexed: 02/01/2023] Open
Abstract
Chronic neuropathy is a common and debilitating problem that poses a significant challenge to health care worldwide. Natural compounds have received considerable attention as potential sources of new drugs for the treatment of neuropsychiatric pain. Catechin is a well-known novel flavonoid with several therapeutic properties, notably in neurodegenerative diseases. The current study is designed to investigate the role of catechin in neuroprotective activity in the chronic constriction injury (CCI) model. Apparently, healthy adult male Sprague–Dawley rats weighing 160–190 g (8 weeks old) were selected and grouped into the following: sham (distilled water), CCI group (CCI), standard [CCI + pregabalin (10 mg/kg, p.o.)], and test catechin [CCI + catechin (50 and 100 μg/kg p.o.)] for 28 days. Behavioral, thermal, and mechanical changes were evaluated. The results showed that mechanical allodynia and thermal hyperalgesia were reduced in the catechin-treated group when compared with the CCI group. In addition, the relationship between the analgesic effect of catechin and the expressions of TNF-α, IL-6, and IL-β was established. The results showed that catechin reversed the signs of neuropathic pain. It also decreased the levels of TNF-α, IL-6, and IL-β in the rat brain. Therefore, the results suggested that catechin has promising potential in the treatment and management of neuropathic pain by decreasing the levels of NF-κβ–regulated inflammatory cytokines in the chronic constriction injury model.
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Affiliation(s)
- Ahmed I. Foudah
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Mohammed H. Alqarni
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Sushma Devi
- Guru Nanak Institute, Hema Majra Road, Mullana, Ambala, India
| | - Akanksha Singh
- Prin, K. M. Kundnani College of Pharmacy, Rambhau Salgaonkar Marg, Cuffe Parade, Mumbai, India
| | - Aftab Alam
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
- *Correspondence: Aftab Alam, ,
| | - Pravej Alam
- Department of Biology, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Sima Singh
- IES Institute of Pharmacy, IES University Campus, Kalkheda, Ratibad Main Road, Bhopal, India
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Kim NA, Kim BG, Lee J, Chung HT, Kwon HR, Kim YS, Choi JB, Song JH. Response After Repeated Ketamine Injections in a Rat Model of Neuropathic Pain. Physiol Res 2022; 71:297-303. [PMID: 35275700 PMCID: PMC9150560 DOI: 10.33549/physiolres.934841] [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] [Received: 11/15/2021] [Accepted: 01/25/2022] [Indexed: 11/25/2022] Open
Abstract
Ketamine, an N-methyl-D-aspartate antagonist, reduces pain by decreasing central sensitization and pain windup. However, chronic ketamine use can cause tolerance, dependency, impaired consciousness, urinary symptoms, and abdominal pain. This study aimed to investigate the effects of repeated ketamine injections and ketamine readministration after discontinuation in a rat model of neuropathic pain. To induce neuropathic pain, partial sciatic nerve ligation (PSNL) was performed in 15 male Wistar rats, and these animals were divided into three groups: PSNL (control), PSNL + ketamine 5 mg/kg (K5), and PSNL + ketamine 10 mg/kg (K10; n=5 each). Ketamine was injected intraperitoneally daily for 4 weeks, discontinued for 2 weeks, and then readministered for 1 week. Following PSNL, the mechanical withdrawal threshold was determined weekly using the Von Frey. The K10 group showed a significant increase in the mechanical withdrawal threshold, presented here as the target force (in g), at 21 and 28 days compared to the time point before ketamine injection (mean±SE, 276.0±24.0 vs. 21.6±2.7 and 300.0±0.0 vs. 21.6±2.7, respectively; P<0.01) and at 14, 21, and 28 days compared to the control group (108.2±51.2 vs. 2.7±1.3, 276.0±24.0 vs. 2.5±1.5, and 300.0±0.0 vs. 4.0±0.0, respectively; P<0.05). However, in the K10 group, the ketamine effects decreased significantly at 7 days after readministration compared to those after 28 days of repeated injections (P<0.05). In the K10 group, repeated ketamine injections showed a significant increase in antinociceptive effect for >2 weeks, but this ketamine effect decreased after drug readministration.
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Affiliation(s)
- N A Kim
- Department of Anesthesiology and Pain Medicine, Inha University Hospital, Inha University School of Medicine, Incheon, South Korea.
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Düzenli N, Ülker S, Şengül G, Kayhan B, Önal A. Effects of cyanocobalamin and its combination with morphine on neuropathic rats and the relationship between these effects and thrombospondin-4 expression. Korean J Pain 2022; 35:66-77. [PMID: 34966013 PMCID: PMC8728557 DOI: 10.3344/kjp.2022.35.1.66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/04/2021] [Accepted: 12/04/2021] [Indexed: 11/06/2022] Open
Abstract
Background Thrombospondin-4 (TSP4) upregulates in the spinal cord following peripheral nerve injury and contributes to the development of neuropathic pain (NP). We investigated the effects of cyanocobalamin alone or in combination with morphine on pain and the relationship between these effects and spinal TSP4 expression in neuropathic rats. Methods NP was induced by chronic constriction injury (CCI) of the sciatic nerve. Cyanocobalamin (5 and 10 mg/kg/day) was administered 15 days before CCI and then for 4 and 14 postoperative days. Morphine (2.5 and 5 mg/kg/day) was administered only post-CCI. Combination treatment included cyanocobalamin and morphine, 10 and 5 mg/kg/day, respectively. All drugs were administered intraperitoneally. Nociceptive thresholds were detected by esthesiometer, analgesia meter, and plantar test, and TSP4 expression was assessed by western blotting and fluorescence immunohistochemistry. Results CCI decreased nociceptive thresholds in all tests and induced TSP4 expression on the 4th postoperative day. The decrease in nociceptive thresholds persisted except for the plantar test, and the increased TSP4 expression reversed on the 14th postoperative day. Cyanocobalamin and low-dose morphine alone did not produce any antinociceptive effects. High-dose morphine improved the decreased nociceptive thresholds in the esthesiometer when administered alone but combined with cyanocobalamin in all tests. Cyanocobalamin and morphine significantly induced TSP4 expression when administered alone in both doses for 4 or 14 days. However, this increase was less when the two drugs are combined. Conclusions The combination of cyanocobalamin and morphine is more effective in antinociception and partially decreased the induced TSP4 expression compared to the use of either drug alone.
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Affiliation(s)
- Neslihan Düzenli
- Department of Medical Pharmacology, Faculty of Medicine, Ege University, Bornova, Izmir, Turkey
| | - Sibel Ülker
- Department of Medical Pharmacology, Faculty of Medicine, Ege University, Bornova, Izmir, Turkey
| | - Gülgün Şengül
- Department of Anatomy, Faculty of Medicine, Ege University, Bornova, Izmir, Turkey
| | - Buse Kayhan
- Department of Neuroscience, Faculty of Health Sciences, Ege University, Bornova, Izmir, Turkey
| | - Aytül Önal
- Department of Medical Pharmacology, Faculty of Medicine, Ege University, Bornova, Izmir, Turkey
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D'Agnelli S, Amodeo G, Franchi S, Verduci B, Baciarello M, Panerai AE, Bignami EG, Sacerdote P. Frailty and pain, human studies and animal models. Ageing Res Rev 2022; 73:101515. [PMID: 34813977 DOI: 10.1016/j.arr.2021.101515] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 11/08/2021] [Accepted: 11/11/2021] [Indexed: 11/01/2022]
Abstract
The hypothesis that pain can predispose to frailty development has been recently investigated in several clinical studies suggesting that frailty and pain may share some mechanisms. Both pain and frailty represent important clinical and social problems and both lack a successful treatment. This circumstance is mainly due to the absence of in-depth knowledge of their pathological mechanisms. Evidence of shared pathways between frailty and pain are preliminary. Indeed, many clinical studies are observational and the impact of pain treatment, and relative pain-relief, on frailty onset and progression has never been investigated. Furthermore, preclinical research on this topic has yet to be performed. Specific researches on the pain-frailty relation are needed. In this narrative review, we will attempt to point out the most relevant findings present in both clinical and preclinical literature on the topic, with particular attention to genetics, epigenetics and inflammation, in order to underline the existing gaps and the potential future interventional strategies. The use of pain and frailty animal models discussed in this review might contribute to research in this area.
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Gopalsamy B, Sambasevam Y, Zulazmi NA, Chia JSM, Omar Farouk AA, Sulaiman MR, Tengku Mohamad TAS, Perimal EK. Experimental Characterization of the Chronic Constriction Injury-Induced Neuropathic Pain Model in Mice. Neurochem Res 2019; 44:2123-2138. [DOI: 10.1007/s11064-019-02850-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 07/03/2019] [Accepted: 07/29/2019] [Indexed: 02/03/2023]
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10
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Callai EMM, Scarabelot VL, Fernandes Medeiros L, Oliveira C, Souza A, Macedo IC, Cioato SG, Finamor F, Caumo W, Quevedo ADS, Torres ILS. Transcranial direct current stimulation (tDCS) and trigeminal pain: A preclinical study. Oral Dis 2019; 25:888-897. [DOI: 10.1111/odi.13038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 12/04/2018] [Accepted: 12/21/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Etiane Micheli Meyer Callai
- Pharmacology of Pain and Neuromodulation Laboratory: Preclinical Researches, Department of Pharmacology, Institute of Basic Health Sciences (ICBS) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Animal Experimentation Unit and Graduate Research Group Hospital de Clínicas de Porto Alegre Porto Alegre Brazil
- Graduate Program in Biological Sciences: Physiology ICBS, UFRGS Porto Alegre Brazil
| | - Vanessa Leal Scarabelot
- Pharmacology of Pain and Neuromodulation Laboratory: Preclinical Researches, Department of Pharmacology, Institute of Basic Health Sciences (ICBS) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Animal Experimentation Unit and Graduate Research Group Hospital de Clínicas de Porto Alegre Porto Alegre Brazil
| | - Liciane Fernandes Medeiros
- Pharmacology of Pain and Neuromodulation Laboratory: Preclinical Researches, Department of Pharmacology, Institute of Basic Health Sciences (ICBS) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Animal Experimentation Unit and Graduate Research Group Hospital de Clínicas de Porto Alegre Porto Alegre Brazil
- Postgraduate Program in Medical Sciences, School of Medicine Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Carla Oliveira
- Pharmacology of Pain and Neuromodulation Laboratory: Preclinical Researches, Department of Pharmacology, Institute of Basic Health Sciences (ICBS) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Animal Experimentation Unit and Graduate Research Group Hospital de Clínicas de Porto Alegre Porto Alegre Brazil
- Postgraduate Program in Medical Sciences, School of Medicine Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Andressa Souza
- Pharmacology of Pain and Neuromodulation Laboratory: Preclinical Researches, Department of Pharmacology, Institute of Basic Health Sciences (ICBS) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Animal Experimentation Unit and Graduate Research Group Hospital de Clínicas de Porto Alegre Porto Alegre Brazil
- Post‐Graduate Program in Health and Human Development, Centro Universitário Unilasalle Canoas Brazil
| | - Isabel Cristina Macedo
- Pharmacology of Pain and Neuromodulation Laboratory: Preclinical Researches, Department of Pharmacology, Institute of Basic Health Sciences (ICBS) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Animal Experimentation Unit and Graduate Research Group Hospital de Clínicas de Porto Alegre Porto Alegre Brazil
| | - Stefania Giotti Cioato
- Pharmacology of Pain and Neuromodulation Laboratory: Preclinical Researches, Department of Pharmacology, Institute of Basic Health Sciences (ICBS) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Animal Experimentation Unit and Graduate Research Group Hospital de Clínicas de Porto Alegre Porto Alegre Brazil
- Graduate Program in Biological Sciences: Pharmacology and Therapeutics ICBS, UFRGS Porto Alegre Brazil
| | - Fabrício Finamor
- Pharmacology of Pain and Neuromodulation Laboratory: Preclinical Researches, Department of Pharmacology, Institute of Basic Health Sciences (ICBS) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Animal Experimentation Unit and Graduate Research Group Hospital de Clínicas de Porto Alegre Porto Alegre Brazil
- Graduate Program in Biological Sciences: Pharmacology and Therapeutics ICBS, UFRGS Porto Alegre Brazil
| | - Wolnei Caumo
- Postgraduate Program in Medical Sciences, School of Medicine Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Alexandre da Silva Quevedo
- Pharmacology of Pain and Neuromodulation Laboratory: Preclinical Researches, Department of Pharmacology, Institute of Basic Health Sciences (ICBS) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Graduate Program in Biological Sciences: Pharmacology and Therapeutics ICBS, UFRGS Porto Alegre Brazil
| | - Iraci L. S. Torres
- Pharmacology of Pain and Neuromodulation Laboratory: Preclinical Researches, Department of Pharmacology, Institute of Basic Health Sciences (ICBS) Universidade Federal do Rio Grande do Sul (UFRGS) Porto Alegre Brazil
- Animal Experimentation Unit and Graduate Research Group Hospital de Clínicas de Porto Alegre Porto Alegre Brazil
- Graduate Program in Biological Sciences: Physiology ICBS, UFRGS Porto Alegre Brazil
- Postgraduate Program in Medical Sciences, School of Medicine Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
- Graduate Program in Biological Sciences: Pharmacology and Therapeutics ICBS, UFRGS Porto Alegre Brazil
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11
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Guha D, Shamji MF. The Dorsal Root Ganglion in the Pathogenesis of Chronic Neuropathic Pain. Neurosurgery 2018; 63 Suppl 1:118-126. [PMID: 27399376 DOI: 10.1227/neu.0000000000001255] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Affiliation(s)
| | - Mohammed F Shamji
- Department of Surgery and.,Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada.,Division of Neurosurgery, Toronto Western Hospital, Toronto, Ontario, Canada
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12
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Király K, Kozsurek M, Lukácsi E, Barta B, Alpár A, Balázsa T, Fekete C, Szabon J, Helyes Z, Bölcskei K, Tékus V, Tóth ZE, Pap K, Gerber G, Puskár Z. Glial cell type-specific changes in spinal dipeptidyl peptidase 4 expression and effects of its inhibitors in inflammatory and neuropatic pain. Sci Rep 2018; 8:3490. [PMID: 29472575 PMCID: PMC5823904 DOI: 10.1038/s41598-018-21799-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 02/08/2018] [Indexed: 01/02/2023] Open
Abstract
Altered pain sensations such as hyperalgesia and allodynia are characteristic features of various pain states, and remain difficult to treat. We have shown previously that spinal application of dipeptidyl peptidase 4 (DPP4) inhibitors induces strong antihyperalgesic effect during inflammatory pain. In this study we observed low level of DPP4 mRNA in the rat spinal dorsal horn in physiological conditions, which did not change significantly either in carrageenan-induced inflammatory or partial nerve ligation-generated neuropathic states. In naïve animals, microglia and astrocytes expressed DPP4 protein with one and two orders of magnitude higher than neurons, respectively. DPP4 significantly increased in astrocytes during inflammation and in microglia in neuropathy. Intrathecal application of two DPP4 inhibitors tripeptide isoleucin-prolin-isoleucin (IPI) and the antidiabetic drug vildagliptin resulted in robust opioid-dependent antihyperalgesic effect during inflammation, and milder but significant opioid-independent antihyperalgesic action in the neuropathic model. The opioid-mediated antihyperalgesic effect of IPI was exclusively related to mu-opioid receptors, while vildagliptin affected mainly delta-receptor activity, although mu- and kappa-receptors were also involved. None of the inhibitors influenced allodynia. Our results suggest pathology and glia-type specific changes of DPP4 activity in the spinal cord, which contribute to the development and maintenance of hyperalgesia and interact with endogenous opioid systems.
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Affiliation(s)
- Kornél Király
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, H-1089, Budapest, Hungary
| | - Márk Kozsurek
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094, Budapest, Hungary
| | - Erika Lukácsi
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094, Budapest, Hungary
| | - Benjamin Barta
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094, Budapest, Hungary
| | - Alán Alpár
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094, Budapest, Hungary
| | - Tamás Balázsa
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094, Budapest, Hungary
| | - Csaba Fekete
- "Lendület" Laboratory of Integrative Neurobiology, Institute of Experimental Medicine of the Hungarian Academy of Sciences, H-1083, Budapest, Hungary
| | - Judit Szabon
- "Lendület" Laboratory of Integrative Neurobiology, Institute of Experimental Medicine of the Hungarian Academy of Sciences, H-1083, Budapest, Hungary
| | - Zsuzsanna Helyes
- Department of Pharmacology and Pharmacotherapy, Medical School & Szentágothai Research Centre, University of Pécs, H-7624, Pécs, Hungary.,MTA-PTE NAP B Chronic Pain Research Group, University of Pécs, H-7624, Pécs, Hungary
| | - Kata Bölcskei
- Department of Pharmacology and Pharmacotherapy, Medical School & Szentágothai Research Centre, University of Pécs, H-7624, Pécs, Hungary
| | - Valéria Tékus
- Department of Pharmacology and Pharmacotherapy, Medical School & Szentágothai Research Centre, University of Pécs, H-7624, Pécs, Hungary
| | - Zsuzsanna E Tóth
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094, Budapest, Hungary
| | - Károly Pap
- Department of Traumatology, Semmelweis University, H-1113 Budapest, Hungary & Department of Orthopaedics and Traumatology, Uzsoki Hospital, H-1145, Budapest, Hungary
| | - Gábor Gerber
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094, Budapest, Hungary
| | - Zita Puskár
- Department of Anatomy, Histology and Embryology, Semmelweis University, H-1094, Budapest, Hungary.
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13
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Zulazmi NA, Gopalsamy B, Farouk AAO, Sulaiman MR, Bharatham BH, Perimal EK. Antiallodynic and antihyperalgesic effects of zerumbone on a mouse model of chronic constriction injury-induced neuropathic pain. Fitoterapia 2015. [PMID: 26205045 DOI: 10.1016/j.fitote.2015.07.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Neuropathic pain is a chronic condition that is difficult to be treated. Current therapies available are either ineffective or non-specific thus requiring newer treatment approaches. In this study, we investigated the antiallodynic and antihyperalgesic effects of zerumbone, a bioactive sesquiterpene from Zingiber zerumbet in chronic constriction injury (CCI)-induced neuropathic pain animal model. Our findings showed that single and repeated dose of intra-peritoneal administration of zerumbone (5, 10, 50, 100 mg/kg) significantly attenuated the CCI-induced neuropathic pain when evaluated using the electronic von Frey anesthesiometer, cold plate, Randall-Selitto analgesiometer and the Hargreaves plantar test. Zerumbone significantly alleviated tactile and cold allodynia as well as mechanical and thermal hyperalgesia. Our findings are in comparison to the positive control drugs thatused gabapentin (20 mg/kgi.p.) and morphine (1 mg/kgi.p.). Together, these results showed that the systemic administration of zerumbone produced marked antiallodynic and antihyperalgesic effects in the CCI-induced neuropathic pain in mice and may serve as a potential lead compound for further analysis.
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Affiliation(s)
- Nurul Atiqah Zulazmi
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Banulata Gopalsamy
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Ahmad Akira Omar Farouk
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Mohd Roslan Sulaiman
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - B Hemabarathy Bharatham
- Biomedical Science Programme, School of Diagnostic and Applied Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Enoch Kumar Perimal
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
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14
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van der Wal S, Cornelissen L, Behet M, Vaneker M, Steegers M, Vissers K. Behavior of neuropathic pain in mice following chronic constriction injury comparing silk and catgut ligatures. SPRINGERPLUS 2015; 4:225. [PMID: 26069872 PMCID: PMC4456577 DOI: 10.1186/s40064-015-1009-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 04/29/2015] [Indexed: 01/01/2023]
Abstract
Introduction Neuropathic pain is defined as pain arising as a direct consequence of a lesion or disease affecting the somatosensory system and is common after surgery. Neuropathic pain can persist without an obvious injury. In this study we aim to validate a murine chronic constriction injury model as a model for neuropathic pain research and determine if silk or catgut ligatures induced most stable neuropathic pain behavior. Methods In this study mice underwent chronic constriction or sham surgery. Mice were tested on cutaneous hyperalgesia with the cumulative reaction time in the acetone test, on allodynia with the cumulative reaction time and number of lifts in the cold plate test and the maximal force before withdrawal in von Frey test. Results In the acetone test neuropathic pain was seen in CCI mice, but not in sham mice. Hyperalgesia was present postoperatively in CCI mice compared with preoperatively. In the cold plate test cumulative reaction time and number of lifts were higher in the ipsilateral hind paw than in the contralateral hind paw and sham mice. Postoperative measurements were higher than preoperatively. In the von Frey test the postoperative measurements were lower in the ipsilateral hind paw than preoperatively, while the contralateral hind paw showed an increase in maximal force before withdrawal. The contralateral hind paw showed more difference with sham mice than the ipsilateral hind paw. Silk ligatures showed more stable neuropathic pain behavior. In the acetone test, the cold plate test and the von Frey test the mice scored higher on neuropathic pain having silk ligatures, compared with catgut ligatures. Conclusion In this study we validated a murine CCI model for neuropathic pain behavior. In the murine CCI model it appears that silk ligatures demonstrate more stable neuropathic pain behaviors than catgut ligatures in de CCI model. Electronic supplementary material The online version of this article (doi:10.1186/s40064-015-1009-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Selina van der Wal
- Department of Anesthesiology, Pain and Palliative Medicine, Radboud University Nijmegen Medical Centre (RUNMC), 6525 GA, Nijmegen, the Netherlands
| | - Lisa Cornelissen
- Department of Anesthesiology, Pain and Palliative Medicine, Radboud University Nijmegen Medical Centre (RUNMC), 6525 GA, Nijmegen, the Netherlands
| | - Marije Behet
- Department of Microbiology RUNMC, 6525 GA, Nijmegen, the Netherlands
| | - Michiel Vaneker
- Department of Anesthesiology, Pain and Palliative Medicine, Radboud University Nijmegen Medical Centre (RUNMC), 6525 GA, Nijmegen, the Netherlands
| | - Monique Steegers
- Department of Anesthesiology, Pain and Palliative Medicine, Radboud University Nijmegen Medical Centre (RUNMC), 6525 GA, Nijmegen, the Netherlands
| | - Kris Vissers
- Department of Anesthesiology, Pain and Palliative Medicine, Radboud University Nijmegen Medical Centre (RUNMC), 6525 GA, Nijmegen, the Netherlands
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15
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Dengler EC, Alberti LA, Bowman BN, Kerwin AA, Wilkerson JL, Moezzi DR, Limanovich E, Wallace JA, Milligan ED. Improvement of spinal non-viral IL-10 gene delivery by D-mannose as a transgene adjuvant to control chronic neuropathic pain. J Neuroinflammation 2014; 11:92. [PMID: 24884664 PMCID: PMC4046049 DOI: 10.1186/1742-2094-11-92] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 04/23/2014] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Peri-spinal subarachnoid (intrathecal; i.t.) injection of non-viral naked plasmid DNA encoding the anti-inflammatory cytokine, IL-10 (pDNA-IL-10) suppresses chronic neuropathic pain in animal models. However, two sequential i.t. pDNA injections are required within a discrete 5 to 72-hour period for prolonged efficacy. Previous reports identified phagocytic immune cells present in the peri-spinal milieu surrounding the i.t injection site that may play a role in transgene uptake resulting in subsequent IL-10 transgene expression. METHODS In the present study, we aimed to examine whether factors known to induce pro-phagocytic anti-inflammatory properties of immune cells improve i.t. IL-10 transgene uptake using reduced naked pDNA-IL-10 doses previously determined ineffective. Both the synthetic glucocorticoid, dexamethasone, and the hexose sugar, D-mannose, were factors examined that could optimize i.t. pDNA-IL-10 uptake leading to enduring suppression of neuropathic pain as assessed by light touch sensitivity of the rat hindpaw (allodynia). RESULTS Compared to dexamethasone, i.t. mannose pretreatment significantly and dose-dependently prolonged pDNA-IL-10 pain suppressive effects, reduced spinal IL-1β and enhanced spinal and dorsal root ganglia IL-10 immunoreactivity. Macrophages exposed to D-mannose revealed reduced proinflammatory TNF-α, IL-1β, and nitric oxide, and increased IL-10 protein release, while IL-4 revealed no improvement in transgene uptake. Separately, D-mannose dramatically increased pDNA-derived IL-10 protein release in culture supernatants. Lastly, a single i.t. co-injection of mannose with a 25-fold lower pDNA-IL-10 dose produced prolonged pain suppression in neuropathic rats. CONCLUSIONS Peri-spinal treatment with D-mannose may optimize naked pDNA-IL-10 transgene uptake for suppression of allodynia, and is a novel approach to tune spinal immune cells toward pro-phagocytic phenotype for improved non-viral gene therapy.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Erin D Milligan
- Department of Neurosciences, UNM School of Medicine, University of New Mexico Health Sciences Center, 1 University of New Mexico, Albuquerque, NM 87131-0001, USA.
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16
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Zhang S, Nicholson KJ, Smith JR, Gilliland TM, Syré PP, Winkelstein BA. The roles of mechanical compression and chemical irritation in regulating spinal neuronal signaling in painful cervical nerve root injury. STAPP CAR CRASH JOURNAL 2013; 57:219-242. [PMID: 24435733 DOI: 10.4271/2013-22-0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Both traumatic and slow-onset disc herniation can directly compress and/or chemically irritate cervical nerve roots, and both types of root injury elicit pain in animal models of radiculopathy. This study investigated the relative contributions of mechanical compression and chemical irritation of the nerve root to spinal regulation of neuronal activity using several outcomes. Modifications of two proteins known to regulate neurotransmission in the spinal cord, the neuropeptide calcitonin gene-related peptide (CGRP) and glutamate transporter 1 (GLT-1), were assessed in a rat model after painful cervical nerve root injuries using a mechanical compression, chemical irritation or their combination of injury. Only injuries with compression induced sustained behavioral hypersensitivity (p≤0.05) for two weeks and significant decreases (p<0.037) in CGRP and GLT-1 immunoreactivity to nearly half that of sham levels in the superficial dorsal horn. Because modification of spinal CGRP and GLT-1 is associated with enhanced excitatory signaling in the spinal cord, a second study evaluated the electrophysiological properties of neurons in the superficial and deeper dorsal horn at day 7 after a painful root compression. The evoked firing rate was significantly increased (p=0.045) after compression and only in the deeper lamina. The painful compression also induced a significant (p=0.002) shift in the percentage of neurons in the superficial lamina classified as low- threshold mechanoreceptive (sham 38%; compression 10%) to those classified as wide dynamic range neurons (sham 43%; compression 74%). Together, these studies highlight mechanical compression as a key modulator of spinal neuronal signaling in the context of radicular injury and pain.
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Affiliation(s)
- Sijia Zhang
- Department of Bioengineering, University of Pennsylvania
| | | | - Jenell R Smith
- Department of Bioengineering, University of Pennsylvania
| | | | - Peter P Syré
- Department of Neurosurgery, University of Pennsylvania
| | - Beth A Winkelstein
- Departments of Bioengineering and Neurosurgery, University of Pennsylvania
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17
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Becker A, Geisslinger G, Murín R, Grecksch G, Höllt V, Zimmer A, Schröder H. Cannabinoid-mediated diversity of antinociceptive efficacy of parecoxib in Wistar and Sprague Dawley rats in the chronic constriction injury model of neuropathic pain. Naunyn Schmiedebergs Arch Pharmacol 2013; 386:369-82. [DOI: 10.1007/s00210-013-0839-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Accepted: 01/17/2013] [Indexed: 02/06/2023]
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18
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Guillemette A, Dansereau MA, Beaudet N, Richelson E, Sarret P. Intrathecal administration of NTS1 agonists reverses nociceptive behaviors in a rat model of neuropathic pain. Eur J Pain 2012; 16:473-84. [PMID: 22396077 DOI: 10.1016/j.ejpain.2011.07.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Chronic neuropathic pain arising from peripheral nerve damage is a severe clinical issue where there is a major unmet medical need. We previously demonstrated that both neurotensin (NT) receptor subtypes 1 (NTS1) and 2 (NTS2) are involved in mediating the naloxone-insensitive antinociceptive effects of neurotensin in different analgesic tests including hotplate, tail-flick, and tonic pain. However, the role of these receptors in neuropathic pain management has been poorly investigated. In the present study, we therefore examined whether intrathecal delivery of NTS1 agonists was effective in reducing neuropathic pain symptoms in rats. Neuropathy was induced by sciatic nerve constriction (CCI model), and the development of mechanical allodynia and thermal hyperalgesia on the ipsi- and contralateral hind paws was examined 3, 7, 14, 21, and 28 days post-surgery. CCI-operated rats exhibited significant increases in thermal and mechanical hypersensitivities over a 28-day testing period. Spinal injection of NT to CCI rats alleviated the behavioral responses to radiant heat and mechanical stimuli, with a maximal reversal of 91% of allodynia at 6 μg/kg. Intrathecal administration of the NTS1-selective agonist, PD149163 (30-90 μg/kg) also produced potent anti-allodynic and anti-hyperalgesic effects in nerve-injured rats. Likewise, heat hyperalgesia and tactile allodynia produced by CCI of the sciatic nerve were fully reversed by the NTS1 agonist, NT69L (5-25 μg/kg). Altogether, these results support the idea that the NTS1 receptor subtype is involved in pain modulation, and the potential use of NTS1 agonists for the treatment of painful neuropathies.
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Affiliation(s)
- A Guillemette
- Department of Physiology and Biophysics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
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19
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Yang CP, Cherng CH, Wu CT, Huang HY, Tao PL, Wong CS. Intrathecal Ultra-Low Dose Naloxone Enhances the Antinociceptive Effect of Morphine by Enhancing the Reuptake of Excitatory Amino Acids from the Synaptic Cleft in the Spinal Cord of Partial Sciatic Nerve–Transected Rats. Anesth Analg 2011; 113:1490-500. [DOI: 10.1213/ane.0b013e31822d39c1] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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20
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Mogil JS, Graham AC, Ritchie J, Hughes SF, Austin JS, Schorscher-Petcu A, Langford DJ, Bennett GJ. Hypolocomotion, asymmetrically directed behaviors (licking, lifting, flinching, and shaking) and dynamic weight bearing (gait) changes are not measures of neuropathic pain in mice. Mol Pain 2010; 6:34. [PMID: 20529328 PMCID: PMC2893131 DOI: 10.1186/1744-8069-6-34] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Accepted: 06/08/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Spontaneous (non-evoked) pain is a major clinical symptom of neuropathic syndromes, one that is understudied in basic pain research for practical reasons and because of a lack of consensus over precisely which behaviors reflect spontaneous pain in laboratory animals. It is commonly asserted that rodents experiencing pain in a hind limb exhibit hypolocomotion and decreased rearing, engage in both reflexive and organized limb directed behaviors, and avoid supporting their body weight on the affected side. Furthermore, it is assumed that the extent of these positive or negative behaviors can be used as a dependent measure of spontaneous chronic pain severity in such animals. In the present study, we tested these assumptions via blinded, systematic observation of digital video of mice with nerve injuries (chronic constriction or spared nerve injury), and automated assessment of locomotor behavior using photocell detection and dynamic weight bearing (i.e., gait) using the CatWalk system. RESULTS We found no deficits in locomotor activity or rearing associated with neuropathic injury. The frequency of asymmetric (ipsilaterally directed) behaviors were too rare to be seriously considered as representing spontaneous pain, and in any case did not statistically exceed what was blindly observed on the contralateral hind paw and in control (sham operated and unoperated) mice. Changes in dynamic weight bearing, on the other hand, were robust and ipsilateral after spared nerve injury (but not chronic constriction injury). However, we observed timing, pharmacological, and genetic dissociation of mechanical allodynia and gait alterations. CONCLUSIONS We conclude that spontaneous neuropathic pain in mice cannot be assessed using any of these measures, and thus caution is warranted in making such assertions.
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Affiliation(s)
- Jeffrey S Mogil
- Department of Psychology and Alan Edwards Centre for Research on Pain, McGill University, Montreal, QC H3A 1B1 Canada.
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21
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Cytokine Antagonism Reduces Pain and Modulates Spinal Astrocytic Reactivity After Cervical Nerve Root Compression. Ann Biomed Eng 2010; 38:2563-76. [DOI: 10.1007/s10439-010-0012-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Accepted: 03/11/2010] [Indexed: 10/19/2022]
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22
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Rothman SM, Winkelstein BA. Chemical and mechanical nerve root insults induce differential behavioral sensitivity and glial activation that are enhanced in combination. Brain Res 2007; 1181:30-43. [PMID: 17920051 DOI: 10.1016/j.brainres.2007.08.064] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2007] [Revised: 07/19/2007] [Accepted: 08/28/2007] [Indexed: 12/24/2022]
Abstract
Both chemical irritation and mechanical compression affect radicular pain from disc herniation. However, relative effects of these insults on pain symptoms are unclear. This study investigated chemical and mechanical contributions for painful cervical nerve root injury. Accordingly, the C7 nerve root separately underwent chromic gut exposure, 10gf compression, or their combination. Mechanical allodynia was assessed, and glial reactivity in the C7 spinal cord tissue was assayed at days 1 and 7 by immunohistochemistry using GFAP and OX-42 as markers of astrocytes and microglia, respectively. Both chromic gut irritation and 10gf compression produced ipsilateral increases in allodynia over sham (p<0.048); combining the two insults significantly (p<0.027) increased ipsilateral allodynia compared to either insult alone. Behavioral hypersensitivity was also produced in the contralateral forepaw for all injuries, but only the combined insult was significantly increased over sham (p<0.031). Astrocytic activation was significantly increased over normal (p<0.001) in the ipsilateral dorsal horn at 1 day after either compression or the combined injury. By day 7, GFAP-reactivity was further increased for the combined injury compared to day 1 (p<0.001). In contrast, spinal OX-42 staining was generally variable, with only mild activation at day 1. By day 7 after the combined injury, there were significant (p<0.003) bilateral increases in OX-42 staining over normal. Spinal astrocytic and microglial reactivity follow different patterns after chemical root irritation, compression, and a combined insult. The combination of transient compression and chemical irritation produces sustained bilateral hypersensitivity, sustained ipsilateral spinal astrocytic activation and late onset bilateral spinal microglial activation.
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Affiliation(s)
- Sarah M Rothman
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
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Andrade MGS, Weissman R, Reis SRA. Tissue reaction and surface morphology of absorbable sutures after in vivo exposure. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2006; 17:949-61. [PMID: 16977393 DOI: 10.1007/s10856-006-0185-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2005] [Accepted: 10/21/2005] [Indexed: 05/11/2023]
Abstract
Tissue reaction to suture materials depends mainly on how the polymer they are composed of interacts with the tissues. There are few in vivo studies evaluating the suture material modifications resulting from its interaction with tissues. This paper aimed to study rat subcutaneous tissue reaction to irradiated polyglactin 910, polydioxanone, poliglecaprone 25 and chromic gut and its correlation with the ultra-structural alterations the materials undergo. The histological alterations were studied on the 1st, 2nd, 3rd, 7th and 14th day after suture implantations. In these periods, the materials were removed from the tissues and their surfaces were analyzed by scanning electron microscopy. Irradiated polyglactin 910 stimulated the formation of multinucleated giant cells and its filaments underwent cleavage and dissolution. In potydioxanone, a few inflammatory cells and scar fibrosis was observed, and triangular cracks appeared on its surface. Around the poliglecaprone 25, a diffused infiltration of a few mononuclear cells and fibrosis was recorded and formation of craters was observed on its surface. Chromic gut induced necrosis and granulation tissue and underwent dissolution in the tissues during the studied periods. In this study, it was observed that suture materials induced differentiated tissue reactions and morphologic surface changes, suggesting that indications should be individualized.
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Affiliation(s)
- Miguel G S Andrade
- Post-graduation Program on Oral and Maxillofacial Surgery and Traumatology, Catholic University of Rio Grande do Sul, Brazil
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24
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Vadakkan KI, Jia YH, Zhuo M. A behavioral model of neuropathic pain induced by ligation of the common peroneal nerve in mice. THE JOURNAL OF PAIN 2006; 6:747-56. [PMID: 16275599 DOI: 10.1016/j.jpain.2005.07.005] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2005] [Revised: 07/05/2005] [Accepted: 07/11/2005] [Indexed: 10/25/2022]
Abstract
UNLABELLED Different laboratory animal models of neuropathic pain that replicate pathophysiological changes in patients have been developed. In most animal models of neuropathic pain, both sensory and motor nerves are injured. Thus, animals usually show both abnormal sensory and motor responses. Assessment of the sensory system is likely to be affected by the motor defects, although motor functions have not been evaluated in previous neuropathic pain models. An ideal neuropathic pain model to assess behavioral nociceptive responses in animals is one without affecting motor function and without muscle injury. Here, we report a novel mouse model of neuropathic pain with normal motor functions. Ligation of the common peroneal nerve near the head of fibula was performed by a less invasive procedure. Long-lasting behavioral allodynia and thermal hyperalgesia was observed in mice after the ligation. Furthermore, behavioral allodynia is resistant to morphine treatment at 5 mg/kg body weight, as reported in some cases of neuropathic pain. Standard rotarod test analysis confirmed intact motor functions. Our results show that ligation of the common peroneal nerve can be used as an efficacious mouse model for assessing behavioral nociceptive responses in neuropathic pain. PERSPECTIVE Tests to assess behavioral responses in a neuropathic pain model depend on intact motor functions. Here we report a less invasive procedure to ligate common peroneal nerve of leg to induce neuropathic pain with least motor defects.
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Affiliation(s)
- Kunjumon Ittira Vadakkan
- Department of Physiology, Faculty of Medicine, University of Toronto, University of Toronto Centre for the Study of Pain, Toronto, Ontario, Canada
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