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Bhattacharya T, Gupta A, Gupta S, Saha S, Ghosh S, Shireen Z, Dey S, Sinha S. Benzofuran Iboga-Analogs Modulate Nociception and Inflammation in an Acute Mouse Pain Model. Chembiochem 2024; 25:e202400162. [PMID: 38874536 DOI: 10.1002/cbic.202400162] [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: 02/21/2024] [Revised: 05/20/2024] [Accepted: 06/12/2024] [Indexed: 06/15/2024]
Abstract
Pain management following acute injury or post-operative procedures is highly necessary for proper recovery and quality of life. Opioids and non-steroidal anti-inflammatory drugs (NSAIDS) have been used for this purpose, but opioids cause addiction and withdrawal symptoms whereas NSAIDS have several systemic toxicities. Derivatives of the naturally occurring iboga alkaloids have previously shown promising behavior in anti-addiction of morphine by virtue of their interaction with opioid receptors. On this frontier, four benzofuran analogs of the iboga family have been synthesized and their analgesic effects have been studied in formalin induced acute pain model in male Swiss albino mice at 30 mg/kg of body weight dose administered intraperitoneally. The antioxidant, anti-inflammatory and neuro-modulatory effects of the analogs were analyzed. Reversal of tail flick latency, restricted locomotion and anxiogenic behavior were observed in iboga alcohol, primary amide and secondary amide. Local neuroinflammatory mediators' substance P, calcitonin gene related peptide, cyclooxygenase-2 and p65 were significantly decreased whereas the depletion of brain derived neurotrophic factor and glia derived neurotrophic factor was overturned on iboga analog treatment. Behavioral patterns after oral administration of the best analog were also analyzed. Taken together, these results show that the iboga family of alkaloid has huge potential in pain management.
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Affiliation(s)
- Tuhin Bhattacharya
- Department of Physiology, University of Calcutta, 92 APC Road, West Bengal, Kolkata, 70009, India
| | - Abhishek Gupta
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A Raja S.C. Mullick Road, West Bengal, Kolkata, 700032, India
| | - Shalini Gupta
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A Raja S.C. Mullick Road, West Bengal, Kolkata, 700032, India
| | - Samrat Saha
- Department of Physiology, University of Calcutta, 92 APC Road, West Bengal, Kolkata, 70009, India
| | - Shatabdi Ghosh
- Department of Physiology, University of Calcutta, 92 APC Road, West Bengal, Kolkata, 70009, India
| | - Zofa Shireen
- Department of Physiology, University of Calcutta, 92 APC Road, West Bengal, Kolkata, 70009, India
| | - Sanjit Dey
- Department of Physiology, University of Calcutta, 92 APC Road, West Bengal, Kolkata, 70009, India
| | - Surajit Sinha
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A Raja S.C. Mullick Road, West Bengal, Kolkata, 700032, India
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Coutinho MR, Oliveira LS, Evaristo FFV, Marinho MM, Marinho EM, Teixeira EH, Teixeira AMR, Marinho ES, Santos HS. Pharmacological potential of the triterpene 3
β
,6
β
,16
β
‐trihidroxilup‐20 (29)‐ene isolated from
Combretum leprosum
: A literature review. Fundam Clin Pharmacol 2022; 36:486-493. [DOI: 10.1111/fcp.12753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 12/22/2021] [Accepted: 01/04/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Marnielle R. Coutinho
- Postgraduate Program in Biotechnology‐PPGB‐Renorbio State University of Ceará Fortaleza Ceará Brazil
| | - Larissa S. Oliveira
- Science and Technology, Graduate Program in Natural Sciences State University of Ceará Fortaleza Ceará Brazil
| | | | - Márcia M. Marinho
- Faculty of Education, Science and Letters of Iguatu State University of Ceará Iguatu Ceará Brazil
| | - Emanuelle M. Marinho
- Department of Analytical Chemistry and Physical Chemistry, science center Federal University of Ceará Fortaleza Ceará Brazil
| | - Edson H. Teixeira
- Integrated Laboratory of Biomolecules (LIBS), Department of Pathology and Legal Medicine Federal University of Ceará Fortaleza Ceará Brazil
| | - Alexandre Magno R. Teixeira
- Postgraduate Program in Biotechnology‐PPGB‐Renorbio State University of Ceará Fortaleza Ceará Brazil
- Science and Technology, Graduate Program in Natural Sciences State University of Ceará Fortaleza Ceará Brazil
- Department of Biological Chemistry Regional University of Cariri Crato Ceará Brazil
| | - Emmanuel S. Marinho
- Science and Technology, Graduate Program in Natural Sciences State University of Ceará Fortaleza Ceará Brazil
- Faculty of Philosophy Dom Aureliano Matos State University of Ceará Limoeiro do Norte Ceará Brazil
| | - Hélcio S. Santos
- Postgraduate Program in Biotechnology‐PPGB‐Renorbio State University of Ceará Fortaleza Ceará Brazil
- Science and Technology, Graduate Program in Natural Sciences State University of Ceará Fortaleza Ceará Brazil
- Center for Exact Sciences and Technology State University of Vale do Acaraú Sobral Ceará Brazil
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Antinociceptive effect of triterpene acetyl aleuritolic acid isolated from Croton zehntneri in adult zebrafish (Danio rerio). Biochem Biophys Res Commun 2020; 534:478-484. [PMID: 33261884 DOI: 10.1016/j.bbrc.2020.11.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 11/16/2020] [Indexed: 01/07/2023]
Abstract
Croton zehntneri is a plant known as canelinha de cunhã, prevalent in the northeast region of Brazil. Many constituents of the vegetable have already been studied, and their pharmacological properties have been proven, but this is the first study to analyze the antinociceptive effect in adult zebrafish (ZFa) of the triterpene acetyl aleuritolic acid (AAA) isolated from the stem bark. The animals (ZFa; n = 6/group) were treated intraperitoneally (ip; 20 μL) with AAA (0.1 or 0.3 or 1.0 mg/mL) or vehicle (0.9% saline; 20 μL), and submitted to the locomotor activity test, as well as 96 h acute toxicity. Other groups (n = 6/each) received the same treatments and underwent acute nociception tests (formalin, cinnamaldehyde, glutamate, acid saline, capsaicin, and hypertonic saline). Possible neuromodulation mechanisms were evaluated. AAA (0.1 or 0.3 or 1.0 mg/mL) reduced the nociceptive behavior induced by acid saline and capsaicin, as well as inhibited corneal nociception induced by hypertonic saline, both without altering the animals' locomotor system and without toxicity. These analgesic effects of AAA were significantly (p > 0.05) similar to those of morphine, used as a positive control. The antinociceptive effect of AAA was inhibited by methylene blue, ketamine, camphor, ruthenium red, amiloride, and mefenamic acid. The antinociceptive effect of AAA on the cornea of animals was inhibited by capsazepine. Therefore, AAA showed pharmacological potential for the treatment of acute pain, and this effect is modulated by cGMP, NMDA receptors, transient receptor potential channels (TRPs), ASICs and has pharmacological potential for the treatment of corneal pain modulated by the TRPV1 channel.
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Silva-Filho CJ, Freitas PG, Oliveira FC, Barbosa FG, Oliveira MC, Eloy JO, Pessoa C, Mafezoli J. Nanoencapsulation of triterpene 3β,6β,16β-trihydroxylup-20(29)-ene from Combretum leprosum as strategy to improve its cytotoxicity against cancer cell lines. Bioorg Med Chem Lett 2020; 30:127469. [DOI: 10.1016/j.bmcl.2020.127469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 10/23/2022]
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Silva FCO, de Menezes JESA, Ferreira MKA, da Silva AW, Holanda CLA, Dos Reis Lima J, Campos AR, Evaristo FFV, Teixeira EH, Magalhães FEA, Bandeira PN, Dos Santos HS. Antinociceptive activity of 3β-6β-16β-trihydroxylup-20 (29)-ene triterpene isolated from Combretum leprosum leaves in adult zebrafish (Danio rerio). Biochem Biophys Res Commun 2020; 533:362-367. [PMID: 32962857 DOI: 10.1016/j.bbrc.2020.07.107] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 07/22/2020] [Indexed: 01/08/2023]
Abstract
Drugs used to treat pain are associated with adverse effects, increasing the search for new drugs as an alternative treatment for pain. Therefore, we evaluated the antinociceptive behavior and possible neuromodulation mechanisms of triterpene 3β, 6β, 16β-trihydroxylup-20(29)-ene (CLF-1) isolated from Combretum leprosum leaves in zebrafish. Zebrafish (n = 6/group) were pretreated with CLF-1 (0.1 or 0.3 or 1.0 mg/mL; i.p.) and underwent nociception behavior tests. The antinociceptive effect of CFL-1 was tested for modulation by opioid (naloxone), nitrergic (L-NAME), nitric oxide and guanylate cyclase synthesis inhibitor (methylene blue), NMDA (Ketamine), TRPV1 (ruthenium red), TRPA1 (camphor), or ASIC (amiloride) antagonists. The corneal antinociceptive effect of CFL-1 was tested for modulation by TRPV1 (capsazepine). The effect of CFL-1 on zebrafish locomotor behavior was evaluated with the open field test. The acute toxicity study was conducted. CLF-1 reduced nociceptive behavior and corneal in zebrafish without mortalities and without altering the animals' locomotion. Thus, CFL-1 presenting pharmacological potential for the treatment of acute pain and corneal pain, and this effect is modulated by the opioids, nitrergic system, NMDA receptors and TRP and ASIC channels.
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Affiliation(s)
- Francisca Crislândia Oliveira Silva
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Jane Eire Silva Alencar de Menezes
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Maria Kueirislene Amâncio Ferreira
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Antonio Wlisses da Silva
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Carlos Leone Alves Holanda
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Joyce Dos Reis Lima
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil
| | - Adriana Rolim Campos
- Universidade de Fortaleza, Núcleo de Biologia Experimental (NUBEX), Fortaleza, Ceará, Brazil
| | | | - Edson Holanda Teixeira
- Universidade Federal do Ceará, Departamento de Patologia e Medicina Legal, Laboratório Integrado de Biomoléculas (LIBS), Fortaleza, Ceará, Brasil
| | - Francisco Ernani Alves Magalhães
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil; Universidade de Fortaleza, Núcleo de Biologia Experimental (NUBEX), Fortaleza, Ceará, Brazil; Universidade Estadual do Ceará, Departamento de Química, Laboratório de Bioprospecção de Produtos Naturais e Biotecnologia, Tauá, Ceará, Brazil
| | - Paulo Nogueira Bandeira
- Universidade Estadual Vale do Acaraú, Curso de Química, Sobral, Ceará, Brazil; Universidade Regional do Cariri, Departamento de Química Biológica, Crato, Ceará, Brazil
| | - Hélcio Silva Dos Santos
- Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Laboratório de Química de Produtos Naturais, Fortaleza, Ceará, Brazil; Universidade Estadual Vale do Acaraú, Curso de Química, Sobral, Ceará, Brazil; Universidade Regional do Cariri, Departamento de Química Biológica, Crato, Ceará, Brazil.
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Horinouchi CDDS, Mendes DAGB, Nolte S, Brito PSD, Soley BDS, Favero GM, Facundo VA, Santos ARS, Cabrini DDA, Otuki MF. Anti-proliferative and anti-inflammatory effects of 3β,6β,16β-Trihydroxylup-20(29)-ene on cutaneous inflammation. JOURNAL OF ETHNOPHARMACOLOGY 2017; 195:298-308. [PMID: 27880883 DOI: 10.1016/j.jep.2016.11.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 11/12/2016] [Accepted: 11/19/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE 3β,6β,16β-Trihydroxylup-20(29)-ene (TTHL) is a triterpene isolated from the flowers of Combretum leprosum, a plant used in folk medicine in the north of Brazil for the treatment of skin disorders. AIM OF THE STUDY In the present study, TTHL was evaluated as a potential topical anti-inflammatory and anti-proliferative agent through in vivo and in vitro models. MATERIAL AND METHODS Anti-inflammmatory and anti-proliferative effects of TTHL were assessed using Swiss mice in acute and chronic models of skin inflammation induced by 12-O-tetradecanoylphorbol-acetate (TPA) application. Anti-proliferative activity was proved through in vitro experiments with the HaCaT human keratinocyte cell line. RESULTS Treatment with TTHL inhibited inflammatory parameters such as oedema formation and cellular infiltration in acute and chronic models. In the chronic model, TTHL also inhibited epidermal hyperproliferation, as evidenced by reduction of epidermis thickness and proliferating cell nuclear antigen expression. The anti-proliferative effect was confirmed by the capability of TTHL in reducing the proliferation and inducing cell apoptosis of HaCaT cells. Suggesting a mechanism of action, TTHL showed activation of corticosteroid receptors, but without the induction of corticosteroid-related cutaneous side effects. CONCLUSION Our results demonstrate consistent anti-inflammatory and anti-proliferative activity and assign TTHL as a valuable tool in the development of a new treatment for skin inflammatory and proliferative diseases, such as psoriasis.
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Affiliation(s)
| | | | - Stefanie Nolte
- Department of Pharmaceutical Sciences, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748 (Room - M47), CEP 84030-900 Ponta Grossa, Paraná, Brazil
| | - Priscilla Salles de Brito
- Department of Pharmaceutical Sciences, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748 (Room - M47), CEP 84030-900 Ponta Grossa, Paraná, Brazil
| | - Bruna da Silva Soley
- Department of Pharmacology, Universidade Federal do Paraná, PO Box 19031, CEP 81530-900 Curitiba, Paraná, Brazil
| | - Giovani Marino Favero
- Department of General Biology, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748 CEP 84030-900 Ponta Grossa, Paraná, Brazil
| | - Valdir Alves Facundo
- Department of Chemistry, Universidade Federal de Rondônia, CEP 6801-974 Porto Velho, RO, Brazil
| | - Adair Roberto Soares Santos
- Department of Physiological Science, Universidade Federal de Santa Catarina, CEP 88040-900 Florianópolis, SC, Brazil
| | - Daniela de Almeida Cabrini
- Department of Pharmacology, Universidade Federal do Paraná, PO Box 19031, CEP 81530-900 Curitiba, Paraná, Brazil
| | - Michel Fleith Otuki
- Department of Pharmacology, Universidade Federal do Paraná, PO Box 19031, CEP 81530-900 Curitiba, Paraná, Brazil.
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Moraes LS, Rohor BZ, Areal LB, Pereira EV, Santos AMC, Facundo VA, Santos ARS, Pires RGW, Martins-Silva C. Medicinal plant Combretum leprosum mart ameliorates motor, biochemical and molecular alterations in a Parkinson's disease model induced by MPTP. JOURNAL OF ETHNOPHARMACOLOGY 2016; 185:68-76. [PMID: 26994817 DOI: 10.1016/j.jep.2016.03.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 03/01/2016] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Combretum leprosum is a popular medicinal plant distributed in north and northeastern regions of Brazil. Many different parts of this plant are used in traditional medicine to treat several inflammatory diseases. Parkinson's disease (PD) is a disorder associated with inflammatory toxic factors and the treatments available provide merely a delay of the neurodegeneration. AIM OF THE STUDY We investigated the potential neuroprotective properties of the C. leprosum ethanolic extract (C.l.EE) in a murine model of PD using the toxin 1-methyl-4 phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP). MATERIALS AND METHODS The mice were split into four groups: V/S (vehicle/saline), E/S (extract/saline), V/M (vehicle/MPTP) and E/M (extract/ MPTP). Mice received MPTP (30mg/kg, i.p.) or vehicle (10ml/kg, i.p.) once a day for 5 consecutive days and vehicle (10ml/kg) or C.l.EE (100mg/kg) orally by intra-gastric gavage (i.g.) during a 14-d period, starting 3 days before the first MPTP injection. All groups were assessed for behavioural impairments (amphetamine-induced locomotor activity and muscle strength), dopamine content in striatum using high performance liquid chromatography (HPLC), tyrosine hydroxylase (TH) and dopamine transporter (DAT) gene expressions using qPCR. RESULTS Animals were injected with d-amphetamine (2mg/kg) and the activity was recorded. Amphetamine-induced hyperlocomotion was observed in all groups; however animals treated with MPTP showed exacerbated hyperlocomotion (approximately 3 fold increase compared to control groups). By contrast, mice treated with MPTP that received C.l.EE exhibited attenuation of the hyperlocomotion and did not differ from control groups. Muscle strength test pointed that C.l.EE strongly avoided muscular deficits caused by MPTP (approximately 2 fold increase compared to V/M group). Dopamine and its metabolites were measured in the striatum. The V/M group presented a dopamine reduction of 80%. On the other hand, the E/M group exhibited an increase in dopamine and its metabolites levels (approximately 3 fold increase compared to V/M group). Tyrosine hydroxylase (TH) and dopamine transporter (DAT) gene expressions were significantly reduced in the V/M group (60%). Conversely, C.l.EE treatment was able to increase the mRNA levels of those genes in the E/M group (approximately 2 fold for TH and DAT). CONCLUSIONS These data show, for the first time, that C. leprosum ethanolic extract prevented motor and molecular changes induced by MPTP, and partially reverted dopamine deficit. Thus, our results demonstrate that C.l.EE has potential for the treatment and prevention of PD.
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Affiliation(s)
- Livia S Moraes
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Bruna Z Rohor
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Lorena B Areal
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Evaldo V Pereira
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Biochemistry and Molecular Biophysics of Proteins, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Alexandre M C Santos
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Biochemistry and Molecular Biophysics of Proteins, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Valdir A Facundo
- Department of Medicine, Federal University of Rondônia-UNIR, Porto Velho, RO, Brazil
| | - Adair R S Santos
- Laboratory of Neurobiology of Pain and Inflammation, Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, Trindade, Florianopolis 88040-900, SC, Brazil
| | - Rita G W Pires
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil
| | - Cristina Martins-Silva
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Av. Marechal Campos 1468 - Maruípe, 29.043-910 Vitoria, ES, Brazil.
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Osgood DB, Harrington WF, Kenney EV, Harrington JF. The utility of ionotropic glutamate receptor antagonists in the treatment of nociception induced by epidural glutamate infusion in rats. Surg Neurol Int 2013; 4:106. [PMID: 24032081 PMCID: PMC3766326 DOI: 10.4103/2152-7806.116791] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 07/12/2013] [Indexed: 01/23/2023] Open
Abstract
Background: The authors have previously demonstrated that human herniated disc material contains high concentrations of free glutamate. In an experimental model, elevated epidural glutamate concentrations in the lumbar spine can cause a focal hyperesthetic state. Methods: Rats underwent epidural glutamate infusion in the lumbar spine by a miniosmotic pump over a 72-hour period. Some rats underwent coinfusion with glutamate and ionotropic glutamate antagonists. Nociception was assessed by von Frey fibers and by assessment of glutamate receptor expression in the corresponding dorsal horn of the spinal cord. Results: The kainic acid antagonist, UBP 301, decreased epidural glutamate-based hyperesthesia in a dose dependent manner. Concordant with these findings, there was significant decrease in kainate receptor expression in the dorsal horn. The N-Methyl-4-isoxazoleproionic acid (NMDA) antagonist Norketamine also significantly diminished hyperesthesia and decreased receptor expression in the dorsal horn. Conclusions: Both UBP 301, the kainic acid receptor antagonist and Norketamine, an NMDA receptor antagonist, dampened epidural glutamate-based nociception. Focal epidural injections of Kainate or NMDA receptor antagonists could be effective treatments for disc herniation-based lumbar radiculopathy.
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Affiliation(s)
- Doreen B Osgood
- Department of Neurosurgical Research, Roger Williams Medical Center, Rhode Island, USA
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Antinociceptive and anti-inflammatory effects of the monoterpene α,β-epoxy-carvone in mice. J Nat Med 2013; 67:743-9. [PMID: 23314829 DOI: 10.1007/s11418-012-0738-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 12/12/2012] [Indexed: 10/27/2022]
Abstract
α,β-Epoxy-carvone (EC) is a monoterpene found in the essential oils of many species of plants. It can also be obtained by organic synthesis. EC exerts a depressant effect on the central nervous system and is also known to have anticonvulsant, antimicrobial and antioxidant effects. The present study investigated the antinociceptive and anti-inflammatory effects of EC. Intraperitoneal administration of EC at doses of 100, 200 or 300 mg/kg promoted a significant antinociceptive effect, as shown in the acetic acid-induced abdominal writhing test. EC also provoked a reduction in formalin-induced nociception in the first (300 mg/kg) and second phases (200 and 300 mg/kg). In the hot-plate test, an increase in response latency was found at 30 min (at 100, 200 and 300 mg/kg), and at 60 and 120 min (at 300 mg/kg) following administration of EC, an effect that was reversed by naloxone. Intraperitoneal administration of EC (300 mg/kg) inhibited the increased vascular permeability provoked by acetic acid. These findings suggest that EC inhibited the acute inflammatory reaction, with a pronounced peripheral and central antinociceptive effect in mice that is probably associated with activation of the opioidergic system, which appears to play a role in the antinociceptive activity induced by EC.
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Della-Pace ID, Rambo LM, Ribeiro LR, Saraiva ALL, de Oliveira SM, Silva CR, Villarinho JG, Rossato MF, Ferreira J, de Carvalho LM, de Oliveira Lima F, Furian AF, Oliveria MS, Santos ARS, Facundo VA, Fighera MR, Royes LFF. Triterpene 3β, 6β, 16β trihidroxilup-20(29)-ene protects against excitability and oxidative damage induced by pentylenetetrazol: the role of Na(+),K(+)-ATPase activity. Neuropharmacology 2012; 67:455-64. [PMID: 23219656 DOI: 10.1016/j.neuropharm.2012.10.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Revised: 10/24/2012] [Accepted: 10/26/2012] [Indexed: 10/27/2022]
Abstract
Administration of the compound triterpene 3β, 6β, 16β-trihidroxilup-20(29)-ene (TTHL) resulted in antinociceptive activity in several pain models in mice. Because pain and epilepsy have common mechanisms, and several anticonvulsants are clinically used to treat painful disorders, we investigated the anticonvulsant potential of TTHL. Behavioral and electrographic recordings revealed that pretreatment with TTHL (30 mg/kg; i.g.) increased the latencies to the first clonic seizure to the tonic-clonic and reduced the duration of the generalized seizures induced by the GABA(A) receptor antagonist PTZ (80 g; i.p.). The TTHL pretreatment also protected against PTZ-induced deleterious effects, as characterized by protein carbonylation, lipid peroxidation, [(3)H] glutamate uptake and the inhibition of Na(+),K(+)-ATPase (subunits α(1) and α(2)/α(3)). Although TTHL did not exhibit DPPH, ABTS radical scavenging activity per se and does not alter the binding of [(3)H]flunitrazepam to the benzodiazepinic site of the GABA(A) receptor, this compound was effective in preventing behavioral and EEG seizures, as well as the inhibition of Na(+),K(+)-ATPase induced by ouabain. These results suggest that the protection against PTZ-induced seizures elicited by TTHL is due to Na(+),K(+)-ATPase activity maintenance. In fact, experiments in homogenates of the cerebral cortex revealed that PTZ (10 mM) reduced Na(+),K(+)-ATPase activity and that previous incubation with TTHL (10 μM) protected against this inhibition. Collectively, these data indicate that the protection exerted by TTHL in this model of convulsion is not related to antioxidant activity or GABAergic activity. However, these results demonstrated that the effective protection of Na(+),K(+)-ATPase elicited by this compound protects against the damage due to neuronal excitability and oxidation that is induced by PTZ.
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Affiliation(s)
- Iuri Domingues Della-Pace
- Centro de Ciências da Saúde, Laboratório de Bioquímica do Exercício (BioEx), Programa de Pós-Graduação em Farmacologia - Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
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Longhi-Balbinot DT, Lanznaster D, Baggio CH, Silva MD, Cabrera CH, Facundo VA, Santos ARS. Anti-inflammatory effect of triterpene 3β, 6β, 16β-trihydroxylup-20(29)-ene obtained from Combretum leprosum Mart & Eich in mice. JOURNAL OF ETHNOPHARMACOLOGY 2012; 142:59-64. [PMID: 22575213 DOI: 10.1016/j.jep.2012.04.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 04/03/2012] [Accepted: 04/09/2012] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The 3β, 6β, 16β-trihydroxylup-20(29)-ene (TTHL) is a pentacyclic triterpene obtained from a medicinal plant named Combretum leprosum. In folk medicine, this plant is used to treat several diseases associated with inflammation and pain. We previously demonstrated that TTHL presents a significant antinociceptive effect, suggesting the involvement of the glutamatergic system. AIM OF THE STUDY This study was designed to investigate the effect of TTHL on nociception and vascular permeability induced by acetic acid. We also evaluated the effect of TTHL on carrageenan-induced peritonitis and the levels of cytokines (interleukin 1-β [IL-1β], tumor necrosis factor α [TNF-α] and interleukin 10 [IL-10]) on peritoneal fluid. MATERIALS AND METHODS TTHL was administered orally by intra-gastric gavage (i.g.) 60 min prior to experimentation. Abdominal contractions and vascular permeability were induced by an intraperitoneal (i.p.) injection of acetic acid (0.6%). We also investigated whether TTHL decreases carrageenan-induced peritonitis (750 μg/cavity) by measuring leukocyte migration and vascular permeability. In addition, we evaluated the effects of TTHL on TNF-α, IL-1β and IL-10 release induced by carrageenan on peritoneal fluid. The levels of these cytokines were measured by ELISA. RESULTS TTHL (0.01-10 mg/kg) administered by intra-gastric (i.g.) gavage inhibited (69±3%) acetic acid-induced abdominal constrictions, with an ID₅₀ of 0.15 (0.03-0.8) mg/kg. TTHL (10mg/kg) also reduced the leukocyte infiltration induced by acetic acid, with an inhibition of 59±9 but had no effect on abdominal vascular permeability. In addition, indomethacin (10 mg/kg, i.p.) reduced the nociceptive behavior (92±1%), total leukocyte migration (29±3%) and capillary permeability (71±3%) induced by acetic acid. While the glucocorticoid dexamethasone (2 mg/kg, s.c.) reduced partially but significantly the nociception (31±1%), besides to promote a marked reduction on total leukocyte migration (60±2%) to the peritoneal cavity caused by acetic acid. In a model of peritonitis induced by carrageenan, TTHL also reduced total leukocyte migration, mainly neutrophils (inhibition of 84±3% and 85±2% at 30 mg/kg and 100 mg/kg, respectively). Likewise, dexamethasone (0.5 mg/kg, i.p.) resulted in an inhibition of 93±3%. Nevertheless, carrageenan-induced abdominal vascular permeability was reduced by dexamethasone but was not altered by TTHL. Furthermore, dexamethasone and TTHL significantly reduced the TNF-α and IL-1β levels in peritoneal fluid, whereas the IL-10 levels were unchanged. CONCLUSIONS Altogether, our data confirm the antinociceptive effect of TTHL and demonstrate its effect in inflammatory animal models, providing novel data about this compound, which could be useful as an anti-inflammatory drug.
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Affiliation(s)
- Daniela T Longhi-Balbinot
- Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário-Trindade, Florianópolis, SC, Brazil
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Longhi-Balbinot DT, Martins DF, Lanznaster D, Silva MD, Facundo VA, Santos AR. Further analyses of mechanisms underlying the antinociceptive effect of the triterpene 3β, 6β, 16β-trihydroxylup-20(29)-ene in mice. Eur J Pharmacol 2011; 653:32-40. [DOI: 10.1016/j.ejphar.2010.11.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 10/07/2010] [Accepted: 11/26/2010] [Indexed: 10/18/2022]
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