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Lisboa MRP, Pereira AF, Alves BWDF, Dias DBS, Alves LCV, da Silva CMP, Lima-Júnior RCP, Gondim DV, Vale ML. Blockage of the fractalkine pathway reduces hyperalgesia and prevents morphological glial alterations-Comparison between inflammatory and neuropathic orofacial pain in male rats. J Neurosci Res 2024; 102:e25269. [PMID: 38284851 DOI: 10.1002/jnr.25269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 10/09/2023] [Accepted: 10/22/2023] [Indexed: 01/30/2024]
Abstract
This study aimed to evaluate the effects of inhibitors of the fractalkine pathway in hyperalgesia in inflammatory and neuropathic orofacial pain in male rats and the morphological changes in microglia and satellite glial cells (SGCs). Rats were submitted to zymosan-induced arthritis of the temporomandibular joint or infraorbital nerve constriction, and treated intrathecally with a P2 X7 antagonist, a cathepsin S inhibitor or a p-38 mitogen-activated protein kinase (MAPK) inhibitor. Mechanical hyperalgesia was evaluated 4 and 6 h following arthritis induction or 7 and 14 days following nerve ligation. The expression of the receptor CX3 CR1 , phospho-p-38 MAPK, ionized calcium-binding adapter molecule-1 (Iba-1), and glutamine synthetase and the morphological changes in microglia and SGCs were evaluated by confocal microscopy. In both inflammatory and neuropathic models, untreated animals presented a higher expression of CX3 CR1 and developed hyperalgesia and up-regulation of phospho-p-38 MAPK, which was prevented by all drugs (p < .05). The number of microglial processes endpoints and the total branch length were lower in the untreated animals, but the overall immunolabeling of Iba-1 was altered only in neuropathic rats (p < .05). The mean area of SGCs per neuron was significantly altered only in the inflammatory model (p < .05). All morphological alterations were reverted by modulating the fractalkine pathway (p < .05). In conclusion, the blockage of the fractalkine pathway seemed to be a possible therapeutic strategy for inflammatory and neuropathic orofacial pain, reducing mechanical hyperalgesia by impairing the phosphorylation of p-38 MAPK and reverting morphological alterations in microglia and SGCs.
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Affiliation(s)
- Mario Roberto Pontes Lisboa
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
- Graduation in Dentistry, Christus University Center, Fortaleza, Brazil
| | - Anamaria Falcão Pereira
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | | | - Diego Bernarde Souza Dias
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | | | | | - Roberto César Pereira Lima-Júnior
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Delane Viana Gondim
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Mariana Lima Vale
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
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de Lima P, Silva RSE, Guedert DG, Mesquita ÉS, Ramos VS, Firmiano BDPX, Nunes Cavalcanti CV, Domingos ILDS, Silva PGDB, Gondim DV, Vale ML. Through the fingers: Use of plastinated anatomical specimens for visually impaired students. Anat Sci Educ 2024; 17:139-146. [PMID: 37658658 DOI: 10.1002/ase.2332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/12/2023] [Accepted: 08/15/2023] [Indexed: 09/03/2023]
Abstract
The plastination technique produces non-toxic human tissues, ensuring their safe handling in educational settings. This investigation aimed to understand if visually impaired students profit from the use of plastinated anatomical specimens in learning the anatomy of the nervous system. For this purpose, their learning performance was compared to sighted and blindfolded students recruited from three primary schools in Fortaleza city, in the state of Ceará. Initially, a questionnaire was applied before carrying out the pedagogical practice, followed by an anatomy lecture with practical components with the use of plastinated anatomical specimens and synthetic anatomical models of the nervous system. After these steps, the students answered the questionnaire previously applied. Our results showed that the tactile perception of the visually impaired participants was significantly more developed compared to sighted (p < 0.001) and the blindfolded (p < 0.0001) students. The average of correct answers in the reapplied questionnaire was higher in the groups that used plastinated specimens (p < 0.05). In conclusion, the use of plastinated specimens has proven to be an effective tool in promoting a better understanding of anatomical structures, mainly for students with or without visual impairments, making it a valuable asset in anatomy teaching.
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Affiliation(s)
- Paola de Lima
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Department of Morphology, Federal University of Ceará, Fortaleza, Brazil
- Department of Medicine, University Center for the Development of Alto Vale do Itajaí, Rio do Sul, Brazil
| | - Renata Souza E Silva
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Department of Morphology, Federal University of Ceará, Fortaleza, Brazil
| | - Denis Guilherme Guedert
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Department of Morphology, Federal University of Ceará, Fortaleza, Brazil
- Department of Medicine, University Center of Brusque, Brusque, Brazil
| | - Érica Silva Mesquita
- Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | - Vitória Sousa Ramos
- Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | | | | | | | - Paulo Goberlânio de Barros Silva
- Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
- Department of Dentistry, Centro Universitário Christus Fortaleza, Fortaleza, Brazil
| | - Delane Viana Gondim
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Department of Morphology, Federal University of Ceará, Fortaleza, Brazil
| | - Mariana Lima Vale
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Department of Morphology, Federal University of Ceará, Fortaleza, Brazil
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Vale ML, Costa NGS, Silva RL. Disfunções olfativas e gustativas provocadas por COVID-19: revisão integrativa da literatura. Rev Med UFC 2023. [DOI: 10.20513/2447-6595.2023v63n1e62477p1-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
Objetivo: Apresentar uma revisão integrativa da literatura acerca dos mecanismos fisiopatológicos que promovem distúrbios neurológicos na COVID-19, em especial anosmia e disgeusia. Metodologia: Uma revisão integrativa foi realizada a partir de uma busca nas bases de dados Pubmed e Scopus utilizando os descritores “Dysgeusia”, “Olfaction Disorders” e “Coronavirus Infections”, integrados pelo operador booleano “AND”. Além disso, efetuou-se uma busca manual nas referências de estudos relevantes. Resultados: Analisou-se um total de 41 artigos na íntegra, dos quais 20 foram incluídos no trabalho. Percebeu-se hipóteses de associação de anosmia e disgeusia com lesão direta ao neuroepitélio olfatório e na mucosa oral, vias neurotrópicas de danos ao sistema nervoso central, processos inflamatórios neurogênicos e prejuízos na atividade de neurotransmissores envolvidos na transdução do paladar. Conclusão: Distúrbios no paladar e no olfato são sintomas que devem ser considerados relevantes na patogênese da COVID-19 e ainda demandam estudos subsequentes, visto a importância dos diferentes mecanismos e vias fisiopatológicas.
Palavras-chave: Coronavírus. Disgeusia. Anosmia. Neurologia.
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de Sousa LM, de Figueiredo Costa AC, Pereira AF, da Silva Martins C, de Oliveira Filho OV, Goes P, Vale ML, Gondim DV. Temporomandibular joint arthritis increases canonical Wnt pathway expression in the articular cartilage and trigeminal ganglion in rats. Bone Rep 2023; 18:101649. [PMID: 36700243 PMCID: PMC9869417 DOI: 10.1016/j.bonr.2022.101649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/27/2022] [Accepted: 12/16/2022] [Indexed: 01/18/2023] Open
Abstract
The canonical Wnt pathway participates in inflammatory diseases and it is involved in neuropathic pain. This study evaluated the immunoexpression of the canonical Wnt signaling pathway in the articular cartilage of the temporomandibular joint (TMJ) and along the nociceptive trigeminal pathway in arthritic rats. For this, male Wistar rats were divided into Control (C) and Arthritic (RA) groups. Arthritis induction was performed through subcutaneous injection of methylated bovine serum albumin (mBSA) and complete Freund Adjuvant (CFA)/ Incomplete Freund Adjuvant (IFA) on the first 14 days (once a week), followed by 3 weekly intra-articular injections of mBSA (10 μl/joint; left TMJ). The following parameters were evaluated: nociceptive threshold, inflammatory infiltrate, type I and III collagen birefringence, immunohistochemistry for IL-1β, TNF-α, IL-6, Wnt10b, β-catenin, cyclin-D1 in articular cartilage, c-Myc in synovial membrane, and immunofluorescence analysis for c-Fos, Wnt-10b and β-catenin in the trigeminal ganglion and the trigeminal subnucleus caudalis. The RA group showed intense articular cartilage damage with proliferation of type III collagen, increased immunoexpression of proinflammatory cytokines and Wnt-10b, β-catenin and cyclin-D1 in the articular cartilage and c-Myc in the synovial membrane. In the RA group, a reduction in the nociceptive threshold was observed, followed by a significant increase in the expression of Wnt-10b in neurons and β-catenin in satellite cells of the trigeminal ganglion. c-Fos immunoexpression was observed in neurons, peripherally and centrally, in arthritic rats. Our data demonstrated that TMJ arthritis in rats causes articular cartilage damage and nociceptive behavior, with increased immunoexpression of canonical Wnt pathway in the articular cartilage and trigeminal ganglion.
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Affiliation(s)
- Luane Macêdo de Sousa
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Federal University of Ceará, Brazil
| | | | - Anamaria Falcão Pereira
- Postgraduate Program in Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - Conceição da Silva Martins
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Federal University of Ceará, Brazil
| | | | - Paula Goes
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Federal University of Ceará, Brazil
- Postgraduate Program in Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Brazil
| | - Mariana Lima Vale
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Federal University of Ceará, Brazil
- Postgraduate Program in Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - Delane Viana Gondim
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Federal University of Ceará, Brazil
- Postgraduate Program in Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Brazil
- Corresponding author at: Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, CEP: 60430-170 Fortaleza, CE, Brazil.
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Lima P, Souza e Silva R, Guedert DG, Costa ACF, Gondim DV, Vale ML. Teaching human anatomy to the visually impaired: a systematic review. Clin Anat 2022; 35:660-665. [DOI: 10.1002/ca.23887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/13/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Paola Lima
- Department of Morphology Federal University of Ceará Fortaleza Brazil
- Department of Medicine at the University Center for the Development of Alto Vale do Itajaí Rio do Sul Brazil
| | - Renata Souza e Silva
- Department of Medicine at the University Center for the Development of Alto Vale do Itajaí Rio do Sul Brazil
| | - Denis Guilherme Guedert
- Department of Morphology Federal University of Ceará Fortaleza Brazil
- Department of Medicine at the University Center of Brusque Brusque Brazil
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Dos Santos Alves JM, Viana KF, Pereira AF, Lima Júnior RCP, Vale ML, Pereira KMA, Gondim DV. Oral carcinogenesis triggers a nociceptive behavior and c-Fos expression in rats' trigeminal pathway. Oral Dis 2022; 29:1531-1541. [PMID: 35244314 DOI: 10.1111/odi.14176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 02/08/2022] [Accepted: 02/23/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To recognize changes that occur along the trigeminal pathway in oral cancer in order to establish an effective approach to pain control. METHODS Wistar rats were divided into control and 4-NQO-groups for 8, 12, 16, or 20 weeks. 4-NQO suspension was administered on the animals` tongues. Mechanical hyperalgesia, assessment of facial expressions and an open field test were performed. After euthanasia, the animals' tongues were removed for macro and microscopic analysis. c-Fos expression was analyzed in the trigeminal pathway structures. RESULTS 4-NQO induced time-dependent macroscopic lesions that were compatible with neoplastic tumors. Histopathological analysis confirmed oral squamous cell carcinoma in 50% of the animals on the 20th week. There was a significant nociceptive threshold reduction during the first two weeks, followed by a threshold return to the baseline levels, decreasing again from the 12th week. Facial nociceptive expression scores were observed on the 20th week, while increased grooming and exploratory activity were observed on the 8th week. Trigeminal ganglion showed an increased c-Fos immunoexpression on the 20th week and in the trigeminal subnucleus caudalis, it occurred on the 16th and 20th. The long-term carcinogenic exposure caused changes in the nociceptive behavior and c-Fos expression in the rats' trigeminal pathway.
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Affiliation(s)
- Joana Maria Dos Santos Alves
- Postgraduate Program in Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Brazil
| | - Khalil Fernandes Viana
- Postgraduate Program in Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Brazil
| | - Anamaria Falcão Pereira
- Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - Roberto César Pereira Lima Júnior
- Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - Mariana Lima Vale
- Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - Karuza Maria Alves Pereira
- Postgraduate Program in Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Brazil
| | - Delane Viana Gondim
- Postgraduate Program in Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Brazil
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Costa ACDF, de Sousa LM, Dos Santos Alves JM, Goes P, Pereira KMA, Alves APNN, Vale ML, Gondim DV. Anti-inflammatory and Hepatoprotective Effects of Quercetin in an Experimental Model of Rheumatoid Arthritis. Inflammation 2021; 44:2033-2043. [PMID: 34080090 DOI: 10.1007/s10753-021-01479-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 04/28/2021] [Accepted: 05/07/2021] [Indexed: 11/25/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by inflammation in the joints. Although methotrexate (MX) is the first-line treatment, side effects are common. This study aimed to investigate the effects of quercetin (QT) and/or MX on inflammation and systemic toxicity in a rat model of RA. Male Wistar rats were divided into control (C), RA, QT, MX, and QT + MX groups (n=6). The RA induction consisted of three intra-articular injections of methylated bovine serum albumin (1×/week) in the temporomandibular joint (TMJ). QT (25 mg/kg) and/or MX (0.75 mg) administration occurred by oral gavage daily. We performed mechanical hyperalgesia in TMJ, leukocyte recruitment in synovial fluid, histopathology, and immunohistochemistry (TNF-α, IL-17, and IL-10) in synovial membrane and toxicity parameters. The RA showed a reduction in the nociceptive threshold (p<0.001), increase in leukocyte recruitment in synovial fluid (p<0.001), intense inflammatory infiltrate (p<0.001), and intense immunoexpression of TNF-α, IL-17, and IL-10 in the synovial membrane (p<0.001) compared to C (p<0.001). QT and/or MX therapy reduced inflammatory parameters (p<0.001). However, downregulation of IL-10 was observed only in the groups that received MX (p<0.001). Leukocytosis was seen in RA (p<0.05), but QT and/or MX reversed it (p<0.05). MX was associated with pathological changes in the liver and higher levels of transaminases when compared to the other groups (p<0.05). QT co-administered with MX reversed this hepatotoxicity (p<0.05). There were no alterations in the kidney between the groups (p>0.05). QT has potential to support MX therapy, showing anti-inflammatory and hepatoprotective effects in this model.
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Affiliation(s)
| | - Luane Macedo de Sousa
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, CEP, Fortaleza, 60430-170, Brazil
| | - Joana Maria Dos Santos Alves
- Department of Clinical Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | - Paula Goes
- Department of Clinical Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
- Department of Pathology and Legal Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Karuza Maria Alves Pereira
- Department of Clinical Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, CEP, Fortaleza, 60430-170, Brazil
| | - Ana Paula Negreiros Nunes Alves
- Department of Clinical Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | - Mariana Lima Vale
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, CEP, Fortaleza, 60430-170, Brazil
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Delane Viana Gondim
- Department of Clinical Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil.
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, CEP, Fortaleza, 60430-170, Brazil.
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Lima Júnior EM, de Moraes Filho MO, Costa BA, Fechine FV, Vale ML, Diógenes AKDL, Neves KRT, Uchôa AMDN, Soares MFADN, de Moraes MEA. Nile Tilapia Fish Skin-Based Wound Dressing Improves Pain and Treatment-Related Costs of Superficial Partial-Thickness Burns: A Phase III Randomized Controlled Trial. Plast Reconstr Surg 2021; 147:1189-1198. [PMID: 33890902 DOI: 10.1097/prs.0000000000007895] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND In a phase II study comparing Nile tilapia fish skin to silver sulfadiazine cream for outpatient management of superficial partial-thickness burns, the fish skin decreased reepithelialization time (average reduction, 1.43 days), dressing changes (average reduction, 3.72 dressings), and visual analogue scale pain scores. The present study aimed to further evaluate Nile tilapia fish skin efficacy for superficial partial-thickness burns. Unlike silver sulfadiazine cream, the fish skin has good adherence to the wound bed, which may prevent infections and decrease need for dressing changes. Thus, it could be a low-cost alternative to hasten healing and improve pain of burn patients. METHODS A phase III randomized controlled trial was conducted from April of 2017 to October of 2018 in Fortaleza, Brazil, and included 115 outpatients aged 18 to 70 years with superficial partial-thickness burns affecting 15 percent or less of body surface area and no previous treatment. Fifty-seven patients were treated with the glycerolized fish skin and 58 with silver sulfadiazine cream 1%. Primary outcomes were reepithelialization time, number of dressings, treatment-related costs, and pain intensity, assessed by means of visual analogue scale, Electronic von Frey, Burns Specific Pain Anxiety Scale, and analgesic use. Patients were evaluated every 48 hours. RESULTS Patients treated with fish skin required fewer days for reepithelialization (9.7 ± 0.6 days versus 10.2 ± 0.9 days; p = 0.001) and fewer dressings (1.6 ± 0.7 versus 4.9 ± 0.5; p < 0.001). They also had decreased analgesic needs and visual analogue scale, Burns Specific Pain Anxiety Scale, and Electronic von Frey measurements. Finally, fish skin use reduced the final average treatment-related cost per patient by 42.1 percent. CONCLUSION By hastening reepithelialization, improving burn-related pain, and decreasing treatment-related costs, Nile tilapia fish skin could benefit the resource-poor public health systems of developing countries. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, II.
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Affiliation(s)
- Edmar Maciel Lima Júnior
- From the Burn Treatment Center, Dr. José Frota Institute; and the Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará
| | - Manoel Odorico de Moraes Filho
- From the Burn Treatment Center, Dr. José Frota Institute; and the Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará
| | - Bruno Almeida Costa
- From the Burn Treatment Center, Dr. José Frota Institute; and the Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará
| | - Francisco Vagnaldo Fechine
- From the Burn Treatment Center, Dr. José Frota Institute; and the Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará
| | - Mariana Lima Vale
- From the Burn Treatment Center, Dr. José Frota Institute; and the Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará
| | - Ana Kely de Loyola Diógenes
- From the Burn Treatment Center, Dr. José Frota Institute; and the Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará
| | - Kelly Rose Tavares Neves
- From the Burn Treatment Center, Dr. José Frota Institute; and the Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará
| | - Alex Marques do Nascimento Uchôa
- From the Burn Treatment Center, Dr. José Frota Institute; and the Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará
| | | | - Maria Elisabete Amaral de Moraes
- From the Burn Treatment Center, Dr. José Frota Institute; and the Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará
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Lima Júnior EM, de Moraes Filho MO, Costa BA, Fechine FV, Rocha MBS, Vale ML, Diógenes AKDL, Uchôa AMDN, Silva Júnior FR, Martins CB, Bandeira TDJPG, Rodrigues FAR, Paier CRK, de Moraes MEA. A Randomized Comparison Study of Lyophilized Nile Tilapia Skin and Silver-Impregnated Sodium Carboxymethylcellulose for the Treatment of Superficial Partial-Thickness Burns. J Burn Care Res 2021; 42:41-48. [PMID: 32603408 DOI: 10.1093/jbcr/iraa099] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Glycerolized Nile tilapia skin (NTS) showed promising results when used for burn treatment in phases II and III randomized controlled trials. This pilot study aims to evaluate the effectiveness of lyophilized NTS (LNTS) as a temporary skin substitute for superficial partial-thickness burns by comparing it with silver-impregnated sodium carboxymethylcellulose dressing. This was a randomized, prospective, open-label, and controlled pilot study conducted in Fortaleza, Brazil, from April 2019 to December 2019. The 24 participants had ≥18 and ≤70 years of age and superficial partial-thickness burns affecting up to 10% of TBSA. Primary outcomes were the number of dressings performed and pain intensity, assessed via the Visual Analogue Scale and the Electronic von Frey. Secondary outcomes were the level of pain-related anxiety, assessed via the Burns Specific Pain Anxiety Scale, and analgesic consumption. In the test group, the number of dressings and the patient-reported pain after dressing-related procedures were lower. Analgesic intake, pain-related anxiety, and both patient-reported and objectively measured pain before dressing-related procedures were similar for the treatment groups. No adverse effects were detected. LNTS shares the same characteristics of an "'ideal'" wound dressing demonstrated by glycerolized NTS in previous studies. Also, it demonstrated noninferiority for burn management when compared with silver-impregnated sodium carboxymethylcellulose dressing. The safety and efficacy of LNTS demonstrated in this pilot study may allow the development of larger phases II and III RCTs in a near future.
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Affiliation(s)
| | - Manoel Odorico de Moraes Filho
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Bruno Almeida Costa
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Francisco Vagnaldo Fechine
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Marina Becker Sales Rocha
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Mariana Lima Vale
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil.,Graduate Program in Morphofunctional Sciences, School of Medicine, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Ana Kely de Loyola Diógenes
- Graduate Program in Morphofunctional Sciences, School of Medicine, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | | | | | - Camila Barroso Martins
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | | | - Felipe Augusto Rocha Rodrigues
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil.,Federal Institute of Education, Science and Technology of Ceará (IFCE), Campus Jaguaribe, CE, Brazil
| | - Carlos Roberto Koscky Paier
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
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Pereira AF, Lino JA, Alves BWF, Lisboa MRP, Pontes RB, Leite CAVG, Nogueira RB, Lima-Júnior RCP, Vale ML. Amifostine protects from the peripheral sensory neuropathy induced by oxaliplatin in mice. Braz J Med Biol Res 2020; 53:e10263. [PMID: 32965323 PMCID: PMC7510240 DOI: 10.1590/1414-431x202010263] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 08/08/2020] [Indexed: 12/18/2022] Open
Abstract
Sensory neuropathy is a dose-limiting side effect of oxaliplatin-based cancer treatment. This study investigated the antinociceptive effect of amifostine and its potential neuroprotective mechanisms on the oxaliplatin-related peripheral sensory neuropathy in mice. Oxaliplatin (1 mg/kg) was injected intravenously in Swiss albino male mice twice a week (total of nine injections), while amifostine (1, 5, 25, 50, and 100 mg/kg) was administered subcutaneously 30 min before oxaliplatin. Mechanical and thermal nociceptive tests were performed once a week for 49 days. Additionally, c-Fos, nitrotyrosine, and activating transcription factor 3 (ATF3) immunoexpressions were assessed in the dorsal root ganglia. In all doses, amifostine prevented the development of mechanical hyperalgesia and thermal allodynia induced by oxaliplatin (P<0.05). Amifostine at the dose of 25 mg/kg provided the best protection (P<0.05). Moreover, amifostine protected against neuronal hyperactivation, nitrosative stress, and neuronal damage in the dorsal root ganglia, detected by the reduced expression of c-Fos, nitrotyrosine, and ATF3 (P<0.05 vs the oxaliplatin-treated group). In conclusion, amifostine reduced the nociception induced by oxaliplatin in mice, suggesting the possible use of amifostine for the management of oxaliplatin-induced peripheral sensory neuropathy.
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Affiliation(s)
- A F Pereira
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - J A Lino
- Departamento de Medicina Clínica, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - B W F Alves
- Departamento de Morfologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - M R P Lisboa
- Departamento de Morfologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - R B Pontes
- Departamento de Fisioterapia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - C A V G Leite
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - R B Nogueira
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - R C P Lima-Júnior
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - M L Vale
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil.,Departamento de Morfologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
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11
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Gusmão JNFM, Fonseca KM, Ferreira BSP, de Freitas Alves BW, Ribeiro Júnior HL, Lisboa MRP, Pereira KMA, Vale ML, Gondim DV. Electroacupuncture Reduces Inflammation but Not Bone Loss on Periodontitis in Arthritic Rats. Inflammation 2020; 44:116-128. [PMID: 32789781 DOI: 10.1007/s10753-020-01313-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Periodontitis and rheumatoid arthritis (RA) are inflammatory diseases characterized by chronic inflammation and bone erosion. Electroacupuncture (EA) shows anti-inflammatory and anti-resorptive effects in experimental periodontitis (EP) and in RA. It is important to investigate whether EA shows these effects in periodontal tissues in the presence of these two inflammatory diseases or not. For this, Wistar rats were divided into six groups: control (C); experimental rheumatoid arthritis (RA; bovine type II collagen-induced (CII)); experimental periodontitis (EP); RA/EP (RA + EP); EP/EA (EP treated with EA); RA/EP/EA (RA + EP treated with EA). EP was induced 21 days after RA induction and EA was performed previously and during the EP induction period, every 3 days until the 36th experimental day. The rats were euthanized on day 39. RA was evaluated by edema and the withdrawal threshold of hind paws. The maxillae were removed, and alveolar bone loss (ABL) and bone radiographic density (BRD) were evaluated. Immunohistochemical analyses for interleukins (IL)-6 and -17 and nuclear factor (NF)-κB were performed. Our results showed that EA reduced only the pain intensity in arthritic rats. Histomorphometric, macroscopic, and radiographic analyses did not show differences between the control and EP/EA groups. EA caused a reduction in ABL and BRD only in the presence of EP. EA caused a reduction in IL-6 and -17 in all groups, but NF-κB was only reduced in the arthritic rats with EP. In conclusion, EA reduced the inflammation related to periodontitis in arthritic rats but did not prevent ABL.
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Affiliation(s)
- Jonas Nogueira Ferreira Maciel Gusmão
- Post Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, Fortaleza, Ceará, CEP: 60.416-030, Brazil
| | - Khetyma Moreira Fonseca
- Post Graduate Program in Pharmacology, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Bruno Sousa Pinto Ferreira
- Post Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, Fortaleza, Ceará, CEP: 60.416-030, Brazil
| | - Bruno Wesley de Freitas Alves
- Post Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, Fortaleza, Ceará, CEP: 60.416-030, Brazil
| | - Howard Lopes Ribeiro Júnior
- Post Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, Fortaleza, Ceará, CEP: 60.416-030, Brazil
| | - Mario Roberto Pontes Lisboa
- Post Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, Fortaleza, Ceará, CEP: 60.416-030, Brazil
| | - Karuza Maria Alves Pereira
- Post Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, Fortaleza, Ceará, CEP: 60.416-030, Brazil
| | - Mariana Lima Vale
- Post Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, Fortaleza, Ceará, CEP: 60.416-030, Brazil.,Post Graduate Program in Pharmacology, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Delane Viana Gondim
- Post Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, Fortaleza, Ceará, CEP: 60.416-030, Brazil.
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12
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Pinto Filho WA, Silveira LDHJ, Vale ML, Fernandes CR, Gomes JA. Gabapentin in Improvement of Procedural Sedation and Analgesia in Oncologic Pediatric Patients: A Clinical Trial. Anesth Pain Med 2020; 9:e91197. [PMID: 31903327 PMCID: PMC6935294 DOI: 10.5812/aapm.91197] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 09/23/2019] [Accepted: 10/01/2019] [Indexed: 01/11/2023] Open
Abstract
Background Preoperative anxiety and distress can produce significant psychological impacts on children undergoing oncologic care or investigation. Adjuvant therapy is used for pain management in children; however, pre-analgesia options are restricted because they can cause undesirable outcomes. Objectives Our study aimed to investigate the use of gabapentin in procedural sedation as adjuvant therapy in children undergoing oncologic treatment. Methods We performed a double-blinded, randomized, clinical trial at Albert Sabin Infant’s Hospital in Fortaleza, Brazil. Children aged 1 - 6 years who had myelogram or lumbar puncture (associated or not with intrathecal chemotherapy) received placebo or gabapentin syrups (15 mg/kg and 30 mg/kg) one to two hours before the procedure. Preoperative anxiety was evaluated by the Yale preoperative anxiety scale modified (m-YPAS scale). The pediatric anesthesia emergence delirium (PAED) and children and infants postoperative pain scale (CHIPP) scales were used for emergence delirium and pain intensity measurement, respectively. Results We evaluated 135 patients. We observed that the gabapentin groups presented lower m-YPAS scores than the placebo group at separation and induction times. Postoperatively, the gabapentin groups had lower PAED and CHIPP scores than the placebo group; however, only had PAED scores clinical relevance. No significant differences were found between the gabapentin groups. Furthermore, children with less than three prior similar procedures were more likely to benefit from gabapentin. Postoperative vomiting was prevented by 30 mg/kg gabapentin. Conclusions Although gabapentin has little preoperative effects, it ameliorates anxiety before induction, improves anesthetic induction, and reduces the occurrence of emergence delirium and postoperative vomiting up to eight hours after the procedure. Thus, we indicate gabapentin as adjuvant therapy for procedural sedation.
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Affiliation(s)
- Washington Aspilicueta Pinto Filho
- Department of Pharmacology, Federal University of Ceará, Fortaleza, Brazil
- Corresponding Author: : Department of Pharmacology, Federal University of Ceará, Fortaleza, Brazil. Tel: +55-85999580971,
| | | | - Mariana Lima Vale
- Department of Pharmacology, Federal University of Ceará, Fortaleza, Brazil
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Pinto Filho WA, Silveira LDHJ, Vale ML, Fernandes CR, Alves Gomes J. The Effect of Gabapentin on Postoperative Pain of Orthopedic Surgery of Lower Limb by Sciatic and Femoral Blockage in Children: A Clinical Trial. Anesth Pain Med 2019; 9:e91207. [PMID: 31754608 PMCID: PMC6825328 DOI: 10.5812/aapm.91207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 06/04/2019] [Accepted: 06/29/2019] [Indexed: 11/16/2022] Open
Abstract
Background There are meta-analyzes in adults demonstrating the benefits of using gabapentin to improve postoperative pain in orthopedic surgeries. In pediatrics, it has never been studied. Objectives The aim of this study was to evaluate the use of gabapentin 10 mg/kg, orally, in postoperative analgesia, hemodynamic stability and its pre/postoperative anxiolytic effect in children subjected to unilateral inferior limb surgery. Methods We performed a double-blinded, randomized study. 84 patients in Albert Sabin Children's Hospital were selected for elective surgery that were divided into 2 groups: gabapentin group, who received gabapentin 1 to 2 hours before the procedure and the control group. Both groups were submitted to the same general anesthesia protocol with 0.125% bupivacaine femoral and sciatic block. Patients received scheduled dipyrone and morphine was used as the rescue analgesic up to 2/2 h. Postoperative pain was assessed using a scale appropriate for age (CRIES, CHIPPS or Wong-Baker face scale). We registered hemodynamic parameters, analgesic consumption and pre/postoperative anxiolytics. Results A decrease in pain intensity in the 4th and 8th postoperative hours was observed in gabapentin group, both groups had the same opioid consumption. Children in the gabapentin group had an odds ratio of 25.6 for preoperative sedation and gabapentin promoted reduction of postoperative agitation. During orotracheal intubation the gabapentin group exhibited attenuation of the hemodynamic response. Conclusions Gabapentin was superior to placebo in reducing postoperative pain. Children who received gabapentin were more sedated in the operating room, less agitated in the postoperative period and the autonomic response to intubation was reduced.
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Affiliation(s)
- Washington Aspilicueta Pinto Filho
- Department of Pharmacology, Federal University of Ceara, Fortaleza, Brazil
- Corresponding Author: Department of Pharmacology, Federal University of Ceará, Fortaleza, Brazil, Tel: +55-85999580971,
| | | | - Mariana Lima Vale
- Department of Pharmacology, Federal University of Ceara, Fortaleza, Brazil
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Alves LCV, Lisboa MRP, da Silveira HF, de Sousa LM, Gusmão JNFM, Dias DBS, Ervolino E, Furlaneto FAC, Vale ML, Gondim DV. Electroacupuncture increases immunoexpression of CB1 and CB2 receptors in experimental model of inflammatory bone loss. Bone 2019; 127:59-66. [PMID: 31121356 DOI: 10.1016/j.bone.2019.05.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 05/05/2019] [Accepted: 05/12/2019] [Indexed: 11/22/2022]
Abstract
This study evaluated the participation of CB1 and CB2 receptors in the antiresorptive effect of electroacupuncture (EA) on an experimental model of inflammatory bone loss in rats. 30 rats were divided into five groups: C (control); EP (experimental periodontitis); EA (C+ EA); EP-EA (EP+ EA in the acupoints LI4, LG11, ST36, ST44); EP - EA-sham (EP+ EA in sham acupoints). For the EP groups, a ligature was placed around the right mandibular first molars at day 1. Sessions of EA or EA-sham were assigned every other day. Animals were euthanized at day 11. Histometric analysis was performed to evaluate the percentage of bone area in the furcation area. Immunolabeling patterns in the periodontal tissues and immunofluorescent staining in the trigeminal ganglia and in the trigeminal spinal tract for CB1 and CB2 receptors were performed. It was observed increased bone loss in the furcation in the EP and EP-EA-sham groups, in comparison to the other groups (p < 0.05). Enhanced CB2 immunolabeling was observed in the periodontal tissues in the EP-EA group, when compared to the EP and EP-EA-sham groups (p < 0.05). Increased CB1 immunofluorescent staining was observed in the neural tissues in the EA treated group in comparison with the other groups (p < 0.05), while no expression of CB2 was observed in those regions. Our study showed that in the presence of inflammatory bone disease, EA treatment reduced bone erosion and increased the immunoexpression of CB1 in the neural tissues and CB2 in the periodontal tissues.
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Affiliation(s)
- Luiza Clertiani Vieira Alves
- Department of Clinical Dentistry, Graduate Program in Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará - UFC, Fortaleza, Ceará, Brazil
| | | | | | - Luane Macêdo de Sousa
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - Diego Bernarde Souza Dias
- Department of Nursing, Faculty of |Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Edilson Ervolino
- Division of Histology, Department of Basic Sciences, Dental School of Araçatuba, São Paulo State University - UNESP, Araçatuba, SP, Brazil
| | - Flávia Aparecida Chaves Furlaneto
- Department of Oral & Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil
| | - Mariana Lima Vale
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Delane Viana Gondim
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil.
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Pinto Filho WA, Silveira LDHJ, Vale ML, Gomes JMA. Sedação paliativa em oncologia pediátrica: relato de casos. Rev Med UFC 2019. [DOI: 10.20513/2447-6595.2019v59n3p69-73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Introdução: a instituição de cuidados paliativos em crianças portadoras de câncer terminal enfrenta vários percalços, principalmente em casos de dificuldade no controle sintomatológico da doença. Objetivos: este estudo descreve a experiência do serviço do Centro Pediátrico de Câncer (CPC) do Hospital Infantil Albert Sabin (HIAS) em casos de aplicação de sedação paliativa e na elaboração de protocolos de indicação, prática e cuidados especiais. Métodos: elaborado e aplicado algoritmo de sedação paliativa para controle sintomatológico em crianças e adolescentes de 2 a 17 anos. Os sintomas foram classificados em vias viscerais ou psiquiátricas. Também foram abordadas boas condutas em sedação para individualização e variedade de tratamentos, alívio de sintoma refratário e bom controle álgico. Resultados: encontrou-se persistência dos sintomas em alguns indivíduos, mas a terapêutica com benzodiazepínicos e opioides mostrou-se satisfatória com o algoritmo utilizado. O tempo médio de internação foi longo e o período desde o início dos cuidados paliativos ao óbito foi altamente variável (2 a 15 dias). Conclusão: o algoritmo foi útil em estabelecer meios efetivos e seguros de guiar a sedação pediátrica. Os cuidados paliativos devem ser pensados em conjunto com profissionais qualificados na área de modo que envolva o alívio dos sintomas físicos e mentais do paciente.
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Pereira AF, Pereira LMS, Silva CMP, Freitas Alves BW, Barbosa JS, Pinto FMM, Pereira AC, Silva KO, Pontes RB, Alencar NMN, Lima-Júnior RCP, Vale ML. Metformin reduces c-Fos and ATF3 expression in the dorsal root ganglia and protects against oxaliplatin-induced peripheral sensory neuropathy in mice. Neurosci Lett 2019; 709:134378. [PMID: 31325582 DOI: 10.1016/j.neulet.2019.134378] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/09/2019] [Accepted: 07/15/2019] [Indexed: 12/11/2022]
Abstract
Oxaliplatin is a third-generation platinum drug commonly used as the first line treatment of metastatic colorectal cancer. Oxaliplatin-based anticancer regimens course with dose-limiting neurotoxicity. The pharmacological strategies used to manage such side effect are not totally effective. Metformin is an anti-diabetic drug that is described to negatively modulate painful diabetic neuropathy. Then, this study aimed to assess the effect of metformin in the oxaliplatin-induced peripheral sensory neuropathy in mice. For that purpose, Swiss male mice were injected with oxaliplatin (1, 2 or 4 mg/kg, i.v., twice a week with a total of nine injections) alone or in combination with daily administration of metformin (250 mg/kg, p.o.). Thermal and mechanical nociceptive tests were performed once a week for five weeks. Then, the animals were euthanized on day 35 post-first injection of oxaliplatin and the dorsal root ganglia were harvested for the assessment of c-Fos and ATF3 expressions. Oxaliplatin caused a nociceptive response accompanied by the increased expression of c-Fos and ATF3 in the dorsal root ganglia and spinal cord. In addition, the oxaliplatin-associated nociception was significantly attenuated by metformin (P < 0.05), which also reduced the expression of c-Fos and ATF3 (P < 0.05). Therefore, metformin protected from the peripheral sensory neuropathy induced by oxaliplatin, which was confirmed by the reduction of c-Fos and ATF3 expression, two known neuronal activation and damage markers, respectively.
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Affiliation(s)
- Anamaria Falcão Pereira
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Lus Mário Silva Pereira
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Bruno Wesley Freitas Alves
- Department of Morphology, Morpho-functional Sciences Post Graduation Program, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Jéssica Sales Barbosa
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Ana Carolina Pereira
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Karla Oliveira Silva
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Renata Bessa Pontes
- Department of Physical Therapy, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Nylane Maria Nunes Alencar
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Roberto César Pereira Lima-Júnior
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Mariana Lima Vale
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; Department of Morphology, Morpho-functional Sciences Post Graduation Program, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil.
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Pontes RB, Lisboa MRP, Pereira AF, Lino JA, de Oliveira FFB, de Mesquita AKV, de Freitas Alves BW, Lima-Júnior RCP, Vale ML. Involvement of Endothelin Receptors in Peripheral Sensory Neuropathy Induced by Oxaliplatin in Mice. Neurotox Res 2019; 36:688-699. [PMID: 31228092 DOI: 10.1007/s12640-019-00074-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 05/24/2019] [Accepted: 06/11/2019] [Indexed: 01/10/2023]
Abstract
The aim of this study was to evaluate the participation of the endothelin ETA and ETB receptors and the effects of bosentan in oxaliplatin-induced peripheral sensory neuropathy (OIN) in mice. Adult male Swiss mice received 1 mg/kg of oxaliplatin intravenously, twice a week for 5 weeks. Dorsal root ganglia (DRG) and spinal cords were removed for evaluation of the endothelin ETA and ETB receptor expression. Afterwards, selective (BQ-123 and BQ-788; 10 nmol in 30 μL, intraplantarly) and non-selective (bosentan, 100 mg/kg, orally) antagonists were administered in order to evaluate the involvement of the endothelin receptors in OIN. Mechanical and thermal nociception tests were performed once a week for 56 days. Oxaliplatin induced mechanical and thermal hypersensitivity and increased the endothelin ETA receptor expression in both the DRG and spinal cord (P < 0.05). Endothelin ETB receptor expression was increased in the DRG (P < 0.05) but not in the spinal cord. Both endothelin ETA and ETB receptor selective antagonists partially prevented mechanical hyperalgesia in mice with OIN (P < 0.05). Moreover, bosentan prevented mechanical and thermal hypersensitivity in oxaliplatin-treated mice (P < 0.05). In conclusion, both endothelin ETA and ETB receptors seem to be involved in the OIN in mice and they should be considered possible targets for the management of this clinical feature.
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Affiliation(s)
- Renata Bessa Pontes
- Department of Physical Therapy, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, 60430-160, Brazil
| | - Mario Roberto Pontes Lisboa
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, 60430-170, Brazil
| | - Anamaria Falcão Pereira
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará (UFC), R. Cel. Nunes de Melo, 1127, Rodolfo Teófilo, Fortaleza, CE, 60430-270, Brazil
| | - Juliana Arcanjo Lino
- Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, 60430-140, Brazil
| | - Francisco Fábio Bezerra de Oliveira
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará (UFC), R. Cel. Nunes de Melo, 1127, Rodolfo Teófilo, Fortaleza, CE, 60430-270, Brazil
| | | | | | - Roberto César Pereira Lima-Júnior
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará (UFC), R. Cel. Nunes de Melo, 1127, Rodolfo Teófilo, Fortaleza, CE, 60430-270, Brazil
| | - Mariana Lima Vale
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, 60430-170, Brazil.
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará (UFC), R. Cel. Nunes de Melo, 1127, Rodolfo Teófilo, Fortaleza, CE, 60430-270, Brazil.
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Silveira HF, Alves LCV, Gondim DV, Oliveira Sousa KK, Dias DBS, Vale ML. EXPERIMENTAL TRIGEMINAL NEURALGIA OF INFRAORBITAL NERVE CAUSES MORPHOLOGICAL PERIPHERICAL CHANGES. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.785.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Delane Viana Gondim
- Morphofunctional Sciences Post Graduation ProgramFederal Univesity of CearáFortalezaBrazil
| | | | | | - Mariana Lima Vale
- Morphofunctional Sciences Post Graduation ProgramFederal Univesity of CearáFortalezaBrazil
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Alves Santana Cesário FR, Rodrigues de Albuquerque T, Fernandes da Silva BA, Mendes de Lacerda G, Rodrigues LB, Brito Pereira Bezerra Martins AO, Quintans-Júnior LJ, Guedes da Silva Almeida JR, Vale ML, Melo Coutinho HD, Alencar de Menezes IR. Evaluation of the antioxidant and gastroprotective activity and HPLC analysis of the hydroalcoholic extract of Tocoyena formosa leaves (Cham. & Schlecht) K. Schum. Food Chem Toxicol 2017; 112:355-362. [PMID: 29294347 DOI: 10.1016/j.fct.2017.12.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 12/09/2017] [Accepted: 12/27/2017] [Indexed: 12/16/2022]
Abstract
The peptic ulcer is a gastric disorder that affects millions of people and yet they cause many side effects. In this sense, natural products represent an important alternative to the discovery of compounds with gastroprotective activity. The present work has as its objective to evaluate the antioxidant and gastroprotective activity of the Hydroalcoholic Extract of Leaves from Tocoyena formosa (Cham. & Schlecht.) K. Schum (HELTF), this being much emphasized in traditional medicine for inflammatory morbidities and gastric symptoms. For the evaluation of the antioxidant activity, FRAP and DPPH tests were carried out, and for the evaluation of the gastroprotective activity, gastric lesion induction by ethanol, acidified ethanol, indomethacin and physical barrier tests were used. Antioxidant assay of HELTF revealed an EC50 of 558.66 μM FeSO4/g and IC50 of 189.78 μg/ml for FRAP and DPPH respectively. In gastroprotective, in ethanol model, all the doses presented significant activity in comparison to controls, however, in the gastric lesion induction test by acidified ethanol and indomethacin, only the dose of 200 mg/kg presented with significance. In the physical barrier test presented evidence that protection by the formation of a protective layer associated with mucus. Concluded, therefore, that HELTF possesses antioxidant and significate gastroprotective activity.
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Affiliation(s)
- Francisco Rafael Alves Santana Cesário
- Department of Biological Chemistry, Laboratory of Pharmacology and Molecular Chemistry Regional University of Cariri, Regional University of Cariri, Crato, CE, 63105-000, Brazil
| | - Thaís Rodrigues de Albuquerque
- Department of Biological Chemistry, Laboratory of Pharmacology and Molecular Chemistry Regional University of Cariri, Regional University of Cariri, Crato, CE, 63105-000, Brazil
| | - Bruno Anderson Fernandes da Silva
- Department of Biological Chemistry, Laboratory of Pharmacology and Molecular Chemistry Regional University of Cariri, Regional University of Cariri, Crato, CE, 63105-000, Brazil
| | - Giovana Mendes de Lacerda
- Department of Biological Chemistry, Laboratory of Pharmacology and Molecular Chemistry Regional University of Cariri, Regional University of Cariri, Crato, CE, 63105-000, Brazil
| | - Lindaiane Bezerra Rodrigues
- Department of Biological Chemistry, Laboratory of Pharmacology and Molecular Chemistry Regional University of Cariri, Regional University of Cariri, Crato, CE, 63105-000, Brazil
| | - Anita Oliveira Brito Pereira Bezerra Martins
- Department of Biological Chemistry, Laboratory of Pharmacology and Molecular Chemistry Regional University of Cariri, Regional University of Cariri, Crato, CE, 63105-000, Brazil
| | - Lucindo Jose Quintans-Júnior
- Department of Physiology, Federal University of Sergipe, Avenue Marechal Rondon, S/N - Rosa Elze, São Cristóvão, SE, 49100-000, Brazil
| | - Jackson Roberto Guedes da Silva Almeida
- Natural Resources of the Semi-Arid Program, Federal University of the Vale São Francisco, Av. José de Sá Maniçoba, s/n, Campus Universitário, Petrolina, PE, Brazil
| | - Mariana Lima Vale
- Department of Pharmacology, Federal University of Ceara, Avenue Av. da Universidade, 2853 - Benfica, Fortaleza, CE, 60020-180, Brazil
| | - Henrique Douglas Melo Coutinho
- Department of Biological Chemistry, Laboratory of Microbiology and Biology Molecular Regional University of Cariri, Regional University of Cariri, Crato, CE, 63105-000, Brazil.
| | - Irwin Rose Alencar de Menezes
- Department of Biological Chemistry, Laboratory of Pharmacology and Molecular Chemistry Regional University of Cariri, Regional University of Cariri, Crato, CE, 63105-000, Brazil
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Cesário FRAS, de Albuquerque TR, de Lacerda GM, de Oliveira MRC, Rodrigues LB, Martins AOBPB, Boligon AA, Júnior LJQ, de Souza Araújo AA, Vale ML, Coutinho HDM, de Menezes IRA. Phytochemical profile and mechanisms involved in the anti-nociception caused by the hydroethanolic extract obtained from Tocoyena formosa (Cham. & Schltdl.) K. Schum (Jenipapo-bravo) leaves in mice. Biomed Pharmacother 2017; 97:321-329. [PMID: 29091881 DOI: 10.1016/j.biopha.2017.10.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 09/29/2017] [Accepted: 10/10/2017] [Indexed: 12/16/2022] Open
Abstract
Tocoyena formosa, a small ornamental tree growing in the dry regions of central Brazil, is commonly known as 'genipapo do bravo'. This is a medicinal plant traditionally used as an analgesic for rheumatic pain, lower back pain and myalgia, however its use is carried out without scientific evidence, which thus justifies the development of studies to investigate and prove its therapeutic potential. Therefore, the objective of this study was to evaluate the phytochemical profile of Tocoyena formosa (Cham. & Schlecht.) K. Schum (TFLHE) and the mechanisms involved in its anti-nociceptive effect. The TFLHE revealed the presence of gallic acid, catechin, chlorogenic acid, caffeic acid, ellagic acid, rutin, quercetin and luteolin. The TFLHE at doses of 200 and 400mg/kg significantly decreased acetic acid-induced abdominal contortions, the reaction time for the formalin test in both phases and increased the paw withdrawal time in the hot plate thermal stimulus test. The 200mg/kg dose also significantly inhibited the plantar mechanical hyperalgesia intensity induced by formalin within 24h. TREATMENT with the TFLHE did not cause significant changes in motor performance and coordination in the Rota Rod test. The investigation on the possible mechanism of antinociceptive action of TFLHE indicates the involvement of opioid, glutamatergic, nitric oxide/cGMP and vanilloid systems. It is concluded that the TFLHE has an antinociceptive effect promoted by the aforementioned mechanisms.
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Affiliation(s)
- Francisco Rafael Alves Santana Cesário
- Department of Biological Chemistry, Postgraduate Program in Molecular Bioprospecting Program, Regional University of Cariri, 63.105-000, Crato, CE, Brazil
| | - Thaís Rodrigues de Albuquerque
- Department of Biological Chemistry, Postgraduate Program in Molecular Bioprospecting Program, Regional University of Cariri, 63.105-000, Crato, CE, Brazil
| | - Giovana Mendes de Lacerda
- Department of Biological Chemistry, Postgraduate Program in Molecular Bioprospecting Program, Regional University of Cariri, 63.105-000, Crato, CE, Brazil
| | - Maria Rayane Correia de Oliveira
- Department of Biological Chemistry, Postgraduate Program in Molecular Bioprospecting Program, Regional University of Cariri, 63.105-000, Crato, CE, Brazil
| | - Lindaiane Bezerra Rodrigues
- Department of Biological Chemistry, Postgraduate Program in Molecular Bioprospecting Program, Regional University of Cariri, 63.105-000, Crato, CE, Brazil
| | | | - Aline Augusti Boligon
- Laboratory of Phytochemical Research of the Department of Industrial Pharmacy, Federal University of Santa Maria, 97.105-900, Santa Maria, RS, Brazil
| | - Lucindo José Quintans Júnior
- Department of Physiology and Pharmacology, Graduate Program in Pharmacology, Federal University of Sergipe, 49.100-000, Aracaju, SE, Brazil
| | - Adriano Antunes de Souza Araújo
- Department of Physiology and Pharmacology, Graduate Program in Pharmacology, Federal University of Sergipe, 49.100-000, Aracaju, SE, Brazil
| | - Mariana Lima Vale
- Postgraduate Program in Health Sciences. Federal University of Sergipe, 49.100-000, Aracaju, SE, Brazil
| | - Henrique Douglas Melo Coutinho
- Department of Biological Chemistry, Postgraduate Program in Molecular Bioprospecting Program, Regional University of Cariri, 63.105-000, Crato, CE, Brazil.
| | - Irwin Rose Alencar de Menezes
- Department of Biological Chemistry, Postgraduate Program in Molecular Bioprospecting Program, Regional University of Cariri, 63.105-000, Crato, CE, Brazil.
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de Araújo JCB, Gondim DV, Cavalcante ALC, Lisboa MRP, de Castro Brito GA, Vale ML. Inflammatory pain assessment in the arthritis of the temporomandibular joint in rats: A comparison between two phlogistic agents. J Pharmacol Toxicol Methods 2017; 88:100-108. [PMID: 28797764 DOI: 10.1016/j.vascn.2017.08.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 07/21/2017] [Accepted: 08/05/2017] [Indexed: 12/01/2022]
Abstract
Temporomandibular joint (TMJ) disorders are a group of conditions that result in TMJ pain, which frequently limits basic daily activities. Experimental models that allow the study of the mechanisms underlying these inflammatory and pain conditions are of great clinical relevance. The aim of this study was to evaluate nociception, inflammation and participation of the macrophage/microglia cells in the arthritis of the TMJ induced by two phlogistic agents. 84 rats were divided into 2 groups: Zy, which received zymosan intra-articularly, or Cg, which received carrageenan intra-articularly. Mechanical nociception, total leukocyte influx to the synovial fluid and histopathological analyses were evaluated in the TMJ. The participation of macrophage/microglia located in trigeminal ganglia (TG) and in the subnucleus caudalis (V-SnC) was assessed immunohistochemically. Both agents induced mechanical hyperalgesia 6h after the induction, but a more persistent algesic state was perceived in the Cg group, which lasted for 120h. Even though both groups presented increased leukocyte influx, the Zy-group presented a more intense influx. Zymosan recruited resident macrophage in the trigeminal ganglia 24h after the injection. In the V-SnC, the group Cg presented a more prolonged immunolabeling pattern in comparison with the group Zy. It can be concluded that zymosan induced a more intense infiltrate and peripheral nervous changes, while Cg lead to a moderate TMJ inflammation with prominent changes in the V-SnC.
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Affiliation(s)
| | - Delane Viana Gondim
- Morphofunctional Sciences Post Graduation Program, Department of Morphology, Federal University of Ceará, Brazil
| | - André Luiz Cunha Cavalcante
- Medical Sciences Post Graduation Program, Department of Clinical Medicine, Federal University of Ceará, Brazil
| | - Mario Roberto Pontes Lisboa
- Morphofunctional Sciences Post Graduation Program, Department of Morphology, Federal University of Ceará, Brazil
| | - Gerly Anne de Castro Brito
- Morphofunctional Sciences Post Graduation Program, Department of Morphology, Federal University of Ceará, Brazil
| | - Mariana Lima Vale
- Pharmacology Post Graduation Program, Department of Physiology and Pharmacology, Federal University of Ceará, Brazil; Morphofunctional Sciences Post Graduation Program, Department of Morphology, Federal University of Ceará, Brazil.
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Magalhães PADF, de Brito TS, Freire RS, da Silva MTB, dos Santos AA, Vale ML, de Menezes DB, Martins AMC, Libório AB. Metabolic acidosis aggravates experimental acute kidney injury. Life Sci 2016; 146:58-65. [PMID: 26773857 DOI: 10.1016/j.lfs.2016.01.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 11/30/2015] [Accepted: 01/06/2016] [Indexed: 01/13/2023]
Abstract
AIMS Ischemia/reperfusion (I/R) injury and metabolic acidosis (MA) are two critical conditions that may simultaneously occur in clinical practice. The result of this combination can be harmful to the kidneys, but this issue has not been thoroughly investigated. The present study evaluated the influence of low systemic pH on various parameters of kidney function in rats that were subjected to an experimental model of renal I/R injury. MAIN METHODS Metabolic acidosis was induced in male Wistar rats by ingesting ammonium chloride (NH4Cl) in tap water, beginning 2 days before ischemic insult and maintained during the entire study. Ischemia/reperfusion was induced by clamping both renal arteries for 45 min, followed by 48 h of reperfusion. Four groups were studied: control (subjected to sham surgery, n=8), I/R (n=8), metabolic acidosis (MA; 0.28 M NH4Cl solution and sham surgery, n=6), and MA+I/R (0.28 M NH4Cl solution plus I/R, n=9). KEY FINDINGS Compared with I/R rats, MA+I/R rats exhibited higher mortality (50 vs. 11%, p=0.03), significant reductions of blood pH, plasma bicarbonate (pBic), and standard base excess (SBE), with a severe decline in the glomerular filtration rate and tubular function. Microscopic tubular injury signals were detected. Immunofluorescence revealed that the combination of MA and I/R markedly increased nuclear factor κB (NF-κB) and heme-oxygenase 1 (HO-1), but it did not interfere with the decrease in endothelial nitric oxide synthase (eNOS) expression that was caused by I/R injury. SIGNIFICANCE Acute ischemic kidney injury is exacerbated by acidic conditions.
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Affiliation(s)
| | | | | | | | | | - Mariana Lima Vale
- Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Alice Maria Costa Martins
- Department of Clinical and Toxicological Analysis, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Alexandre Braga Libório
- Department of Clinical Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; Universidade de Fortaleza, UNIFOR, Fortaleza, CE, Brazil
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de Oliveira FFB, de Araújo JCB, Pereira AF, Brito GAC, Gondim DV, Ribeiro RDA, de Menezes IRA, Vale ML. Antinociceptive and anti-inflammatory effects of Caryocar coriaceum Wittm fruit pulp fixed ethyl acetate extract on zymosan-induced arthritis in rats. J Ethnopharmacol 2015; 174:452-463. [PMID: 26341615 DOI: 10.1016/j.jep.2015.08.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 07/14/2015] [Accepted: 08/18/2015] [Indexed: 06/05/2023]
Abstract
The ethyl acetate extract from the fruit pulp of Caryocar coriaceum Wittm (Caryocaraceae), popularly known as pequi, has wide applications in popular medicine. Preclinical tests have demonstrated the therapeutic properties of the oil. We investigated the antinociceptive and anti-inflammatory effects of Pequi C. coriaceum Wittm ethyl acetate extract (PCCO) on zymosan-induced arthritis in rat knee joint. The animals were pretreated with PCCO for 7 consecutive days or with a single dose. Paw elevation time (PET), leukocyte infiltration, myeloperoxidase activity (MPO) and cytokine levels were assessed 4h after zymosan injection. Synovial tissue was harvested for immunohistochemical analysis, edema and vascular permeability. We observed a significant decrease in PET with PCCO pretreatment. PCCO showed a significant reduction of leukocyte migration and a decrease in MPO. Decreases were observed in cytokine release in the synovial fluid and TNF-α and cyclooxygenase-1 immunostaining in synovial tissue. Edema was inhibited by treatment with all doses of PCCO. The data suggest that PCCO exerts antinociceptive and anti-inflammatory effects on arthritis in rats.
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Affiliation(s)
- Francisco Fábio Bezerra de Oliveira
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil
| | - Joana Cláudia Bezerra de Araújo
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil
| | - Anamaria Falcão Pereira
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil
| | - Gerly Anne Castro Brito
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil; Programa de Pós-Graduação em Ciências Morfofuncionais, Departamento de Morfologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Delane Viana Gondim
- Programa de Pós-Graduação em Ciências Morfofuncionais, Departamento de Morfologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Ronaldo de Albuquerque Ribeiro
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil
| | - Irwin Rose Alencar de Menezes
- Programa de Pós-Graduação em Bioprospecção Molecular, Departamento de Química Biológica, Universidade Regional do Cariri, Laboratório de Farmacologia e Química Molecular, Crato, CE, Brazil
| | - Mariana Lima Vale
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil; Programa de Pós-Graduação em Ciências Morfofuncionais, Departamento de Morfologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil.
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dos Reis Barbosa AL, de Sousa RB, Torres JNL, Cunha TM, de Queiroz Cunha F, Soares PMG, de Albuquerque Ribeiro R, Vale ML, Souza MHLP. Colitis generates remote antinociception in rats: the role of the L-arginine/NO/cGMP/PKG/KATP pathway and involvement of cannabinoid and opioid systems. Inflamm Res 2014; 63:969-77. [PMID: 25286904 DOI: 10.1007/s00011-014-0773-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 09/17/2014] [Accepted: 09/19/2014] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE AND DESIGN The aim of this study was to investigate the possible involvement of the NO/cGMP/PKG/KATP+ pathway, cannabinoids and opioids in remote antinociception associated with 2,4,6-trinitrobenzene sulph onic acid (TNBS)-induced colitis. METHODS TNBS-induced colitis was induced by intracolonic administration of 20 mg of TNBS in 50% ethanol. After induction, carrageenan (500 μg/paw) or prostaglandin (PG) E2 (100 ng/paw) was injected in the rat's plantar surface and hypersensitivity was evaluated by the electronic von Frey test. Rats were pre-treated with L-Noarg one hour before carrageenan injection. L-Arginine was given 10 min before L-Noarg injections. ODQ, KT 5823, glibenclamide (Glib), naloxone and AM 251 or AM 630 were administered 30 min prior to carrageenan or PGE2 treatments. RESULTS Colitis induction by TNBS reduced PGE2 or carrageenan-induced hypersensitivity. Antinociception produced by TNBS-induced colitis was reversed significantly (P<0.05) by L-Noarg, ODQ, KT 5823, glibenclamide, naloxone, AM251 and AM630 treatments. CONCLUSIONS TNBS-induced colitis causes antinociception in the rat paw. This disorder appears to be mediated by activation of the NO/cGMP/PKG/KATP pathway, endocannabinoids and endogenous opioids. This information may contribute to a better understanding of peripheral neurological dysfunctions occurring in Crohn's disease.
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Affiliation(s)
- André Luiz dos Reis Barbosa
- LAFFEX Laboratory of Experimental Physiopharmacology, School of Physiotherapy, Biotechnology and Biodiversity Center Research (BIOTEC), Federal University of Piauí-CMRV, Parnaíba, PI, 64202-020, Brazil,
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Tomaz VS, Cordeiro RC, Costa AMN, de Lucena DF, Nobre Júnior HV, de Sousa FCF, Vasconcelos SMM, Vale ML, Quevedo J, Macêdo D. Antidepressant-like effect of nitric oxide synthase inhibitors and sildenafil against lipopolysaccharide-induced depressive-like behavior in mice. Neuroscience 2014; 268:236-46. [PMID: 24662848 DOI: 10.1016/j.neuroscience.2014.03.025] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 02/21/2014] [Accepted: 03/13/2014] [Indexed: 01/22/2023]
Abstract
Inflammation, oxidative and nitrosative stress underlie depression being assessed in rodents by the systemic administration of lipopolysacharide (LPS). There is an increasing body of evidence of an involvement of nitric oxide (NO) pathway in depression, but this issue was not investigated in LPS-induced model. Thus, herein we evaluated the effects of NO-pathway-modulating drugs, named aminoguanidine, l-NAME, sildenafil and l-arginine, on the behavioral (forced swimming test [FST], sucrose preference [SPT] and prepulse inhibition [PPI] of the startle) and neurochemical (glutathione [GSH], lipid peroxidation, IL-1β) alterations in the prefrontal cortex, hippocampus and striatum as well as in BDNF levels in the hippocampus 24h after LPS (0.5mg/kg, i.p.) administration, a time-point related to depressive-like behavior. Twenty-four hours post LPS there was an increase in immobility time in the FST, decrease in sucrose preference and PPI levels accompanied by a decrease in GSH levels and an increase in lipid peroxidation, IL-1β and hippocampal BDNF levels suggestive of a depressive-like state. The pretreatment with the NOS inhibitors, l-NAME and aminoguanidine as well as sildenafil prevented the behavioral and neurochemical alterations induced by LPS, although sildenafil and l-NAME were not able to prevent the increase in hippocampal BDNF levels induced by LPS. The iNOS inhibitor, aminoguanidine, and imipramine prevented all behavioral and neurochemical alterations induced by LPS. l-arginine did not prevent the alterations in immobility time, sucrose preference and GSH induced by LPS. Taken together our results show that the NO-cGMP pathway is important in the modulation of the depressive-like alterations induced by LPS.
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Affiliation(s)
- V S Tomaz
- Neuropharmacology Laboratory, Department of Physiology and Pharmacology, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - R C Cordeiro
- Neuropharmacology Laboratory, Department of Physiology and Pharmacology, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - A M N Costa
- Neuropharmacology Laboratory, Department of Physiology and Pharmacology, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - D F de Lucena
- Neuropharmacology Laboratory, Department of Physiology and Pharmacology, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - H V Nobre Júnior
- Department of Clinical and Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection and Experiments in Yeast, LABEL, Federal University of Ceará, Fortaleza, CE, Brazil
| | - F C F de Sousa
- Neuropharmacology Laboratory, Department of Physiology and Pharmacology, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - S M M Vasconcelos
- Neuropharmacology Laboratory, Department of Physiology and Pharmacology, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - M L Vale
- Laboratory of Inflammation and Cancer Pharmacology, Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - J Quevedo
- Laboratory of Neurosciences, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciuma, SC, Brazil; Center for Experimental Models in Psychiatry, Department of Psychiatry and Behavioral Sciences, The University of Texas Medical School at Houston, Houston, TX, USA
| | - D Macêdo
- Neuropharmacology Laboratory, Department of Physiology and Pharmacology, Universidade Federal do Ceará, Fortaleza, CE, Brazil.
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Ribeiro BMM, do Carmo MRS, Freire RS, Rocha NFM, Borella VCM, de Menezes AT, Monte AS, Gomes PXL, de Sousa FCF, Vale ML, de Lucena DF, Gama CS, Macêdo D. Evidences for a progressive microglial activation and increase in iNOS expression in rats submitted to a neurodevelopmental model of schizophrenia: reversal by clozapine. Schizophr Res 2013; 151:12-9. [PMID: 24257517 DOI: 10.1016/j.schres.2013.10.040] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 10/17/2013] [Accepted: 10/28/2013] [Indexed: 01/11/2023]
Abstract
Schizophrenia was proposed as a progressive neurodevelopmental disorder. In this regard herein we attempted to determine progressive inflammatory and oxidative alterations induced by a neonatal immune challenge and its possible reversal by clozapine administration. For this end, Wistar rats at postnatal day (PN) 5-7 were administered the viral mimetic polyriboinosinic-polyribocytidilic acid (polyI:C) or saline. A distinct group of animals additionally received the antipsychotic drug clozapine (25mg/kg) from PN60 to 74. At PN35 (periadolescence), 60 (adult) and 74 (adulthood) the animals were submitted to behavioral determinations of prepulse inhibition of the startle (PPI) and Y maze task for working memory evaluation. At PN35 and 74 the animals were sacrificed and the hippocampus (HC), prefrontal cortex (PFC) and striatum (ST) immunostained for Iba-1, a microglial marker, and inducible nitric oxide synthase (iNOS). At PN74 oxidative stress parameters, such as, reduced glutathione levels (GSH) and lipid peroxidation were determined. The results showed a progressive increase of microglial activation and iNOS immunostaining from PN35 to PN74 mainly in the CA2 and CA3 regions of the HC and in the ST. At PN74 neonatal challenge also induced an oxidative imbalance. These inflammatory alterations were accompanied by deficits in PPI and working memory only in adult life that were reversed by clozapine. Clozapine administration reversed microglial activation and iNOS increase, but not the alterations of oxidative stress parameters. Taken together these results give further evidences for a neuroprogressive etiology and course of schizophrenia and that clozapine may partly alleviate this process.
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Affiliation(s)
- Bruna Mara Machado Ribeiro
- Neuropharmacology Laboratory, Department of Physiology and Pharmacology, Universidade Federal do Ceará, Fortaleza, CE, Brazil
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Azevedo MI, Pereira AF, Nogueira RB, Rolim FE, Brito GAC, Wong DVT, Lima-Júnior RCP, de Albuquerque Ribeiro R, Vale ML. The antioxidant effects of the flavonoids rutin and quercetin inhibit oxaliplatin-induced chronic painful peripheral neuropathy. Mol Pain 2013; 9:53. [PMID: 24152430 PMCID: PMC3835704 DOI: 10.1186/1744-8069-9-53] [Citation(s) in RCA: 157] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 10/17/2013] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Oxaliplatin, the third-generation platinum compound, has evolved as one of the most important therapeutic agents in colorectal cancer chemotherapy. The main limiting factor in oxaliplatin treatment is painful neuropathy that is difficult to treat. This side effect has been studied for several years, but its full mechanism is still inconclusive, and effective treatment does not exist. Data suggest that oxaliplatin's initial neurotoxic effect is peripheral and oxidative stress-dependent. A spinal target is also suggested in its mechanism of action. The flavonoids rutin and quercetin have been described as cell-protecting agents because of their antioxidant, antinociceptive, and anti-inflammatory actions. We proposed a preventive effect of these agents on oxaliplatin-induced painful peripheral neuropathy based on their antioxidant properties. METHODS Oxaliplatin (1 mg/kg, i.v.) was injected in male Swiss mice, twice a week (total of nine injections). The development of sensory alterations, such as thermal and mechanical allodynia, was evaluated using the tail immersion test in cold water (10°C) and the von Frey test. Rutin and quercetin (25-100 mg/kg, i.p.) were injected 30 min before each oxaliplatin injection. The animals' spinal cords were removed for histopathological and immunohistochemical evaluation and malondialdehyde assay. RESULTS Oxaliplatin significantly increased thermal and mechanical nociceptive response, effects prevented by quercetin and rutin at all doses. Fos immunostaining in the dorsal horn of the spinal cord confirmed these results. The oxidative stress assays mainly showed that oxaliplatin induced peroxidation in the spinal cord and that rutin and quercetin decreased this effect. The flavonoids also decreased inducible nitric oxide synthase and nitrotyrosine immunostaining in the dorsal horn of the spinal cord. These results suggest that nitric oxide and peroxynitrite are also involved in the neurotoxic effect of oxaliplatin and that rutin and quercetin can inhibit their effect in the spinal cord. We also observed the preservation of dorsal horn structure using histopathological analyses. CONCLUSIONS Oxaliplatin induced painful peripheral neuropathy in mice, an effect that was prevented by rutin and quercetin. The mechanism of action of oxaliplatin appears to be, at least, partially oxidative stress-induced damage in dorsal horn neurons, with the involvement of lipid peroxidation and protein nitrosylation.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Mariana Lima Vale
- Medical Sciences Post-Graduation, Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil.
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Custódio CS, Mello BSF, Cordeiro RC, de Araújo FYR, Chaves JH, Vasconcelos SMM, Júnior HVN, de Sousa FCF, Vale ML, Carvalho AF, Macêdo DS. Time course of the effects of lipopolysaccharide on prepulse inhibition and brain nitrite content in mice. Eur J Pharmacol 2013; 713:31-8. [DOI: 10.1016/j.ejphar.2013.04.040] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 04/20/2013] [Accepted: 04/26/2013] [Indexed: 01/01/2023]
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Gondim DV, Araújo JCB, Cavalcante ALC, Havt A, Quetz JDS, Brito GADC, Ribeiro RDA, Lima Vale M. CB1 and CB2 contribute to antinociceptive and anti-inflammatory effects of electroacupuncture on experimental arthritis of the rat temporomandibular joint. Can J Physiol Pharmacol 2012. [PMID: 23181276 DOI: 10.1139/y2012-130] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Electroacupuncture (EA) and cannabinoids have been reported to have anti-inflammatory and antinociceptive effects in animal models of arthritis. Male Wistar rats were injected with saline or zymosan (2 mg) into the temporomandibular joint (TMJ). EA (10 Hz, 30 min) was performed 2 h after or 1 h before zymosan administration. AM251 or AM630 (3 mg/kg, i.p.)were administered before EA treatment. Mechanical hypernociception was accessed after zymosan administration. Rats were sacrificed 6 h after zymosan administration and the joint was removed for histopathological analysis. The gene expression of CB₁ and CB₂ receptors was assessed after sacrifice of the TMJ arthritic animals. EA inhibited zymosan-induced hypernociception (p < 0.05). AM251 reversed significantly the antinociceptive effect of EA, suggesting that the CB₁ receptor is involved in this effect. AM630 reversed the anti-inflammatory effect of EA. CB₁ and CB₂ receptor gene expression was upregulated 6 h after zymosan-induced arthritis in the EA-treated group. We observed downregulation of CB₂ receptor gene expression in the EA group at the 24th hour compared with the 6th hour. Higher CB₁ receptor gene expression was also found compared with the 6th hour. EA produced antinociceptive and anti-inflammatory effects, and these effects appeared to be mediated through CB₁ and CB₂ receptor activation.
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Affiliation(s)
- Delane Viana Gondim
- Medical Sciences Post-Graduation, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil.
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das Chagas Vieira Júnior F, Sales AB, Barros FCN, Chaves LDS, Freitas ALP, Vale ML, Ribeiro RDA, Souza MHLP, Medeiros JVR, Barbosa ALDR. Involvement of the NO/cGMP/PKG/KATP pathway and endogenous opioids in the antinociceptive effect of a sulphated-polysaccharide fraction extracted from the red algae, Gracilaria caudata. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.bionut.2012.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Pereira LMS, Lima-Júnior RCP, Bem AXC, Teixeira CG, Grassi LS, Medeiros RP, Marques-Neto RD, Callado RB, Aragão KS, Wong DVT, Vale ML, Brito GAC, Ribeiro RA. Blockade of TRPA1 with HC-030031 attenuates visceral nociception by a mechanism independent of inflammatory resident cells, nitric oxide and the opioid system. Eur J Pain 2012; 17:223-33. [PMID: 22689151 DOI: 10.1002/j.1532-2149.2012.00177.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2012] [Indexed: 01/05/2023]
Abstract
BACKGROUND Some studies have shown a somatic nociceptive response due to the activation of transient receptor potential A1 channels (TRPA1), which is modulated by the TRPA1 antagonist HC-030031. However, a few studies report the role of TRPA1 in visceral pain. Therefore, we investigated the participation of TRPA1 in visceral nociception and the involvement of nitric oxide, the opioid system and resident cells in the modulation of these channels. METHODS Mice were treated with vehicle or HC-030031 (18.75-300 mg/kg) before ifosfamide (400 mg/kg), 0.75% mustard oil (50 μL/colon), acetic acid 0.6% (10 mL/kg), zymosan (1 mg/cavity) or misoprostol (1 μg/cavity) injection. Visceral nociception was assessed through the electronic von Frey test or the writhing response. Ifosfamide-administered mice were euthanized for bladder analysis. The involvement of nitric oxide and the opioid system were investigated in mice injected with ifosfamide and mustard oil, respectively. The participation of resident peritoneal cells in acetic acid-, zymosan- or misoprostol-induced nociception was also evaluated. RESULTS HC-030031 failed to protect animals against ifosfamide-induced bladder injury (p > 0.05). However, a marked antinociceptive effect against ifosfamide, mustard oil, acetic acid, zymosan and misoprostol was observed (p < 0.05). Neither L-arginine (600 mg/kg) nor naloxone (2 mg/kg) could reverse the antinociceptive effect of HC-030031. The reduction of the peritoneal cell population inhibited the acetic acid and zymosan-related writhes without interfering with the misoprostol effect. CONCLUSIONS Our findings suggest that the blockade of TRPA1 attenuates visceral nociception by a mechanism independent of the modulation of resident cells, nitric oxide and opioid pathways.
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Affiliation(s)
- L M S Pereira
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
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Barbosa ALR, Pinheiro CA, Oliveira GJ, Torres JNL, Moraes MO, Ribeiro RA, Vale ML, Souza MHLP. Participation of the NO/cGMP/K+ATP pathway in the antinociception induced by Walker tumor bearing in rats. Braz J Med Biol Res 2012; 45:531-6. [PMID: 22450376 PMCID: PMC3854299 DOI: 10.1590/s0100-879x2012007500047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 03/13/2012] [Indexed: 11/23/2022] Open
Abstract
Implantation of Walker 256 tumor decreases acute systemic inflammation in rats. Inflammatory hyperalgesia is one of the most important events of acute inflammation. The L-arginine/NO/cGMP/K+ATP pathway has been proposed as the mechanism of peripheral antinociception mediated by several drugs and physical exercise. The objective of this study was to investigate a possible involvement of the NO/cGMP/K+ATP pathway in antinociception induced in Walker 256 tumor-bearing male Wistar rats (180-220 g). The groups consisted of 5-6 animals. Mechanical inflammatory hypernociception was evaluated using an electronic version of the von Frey test. Walker tumor (4th and 7th day post-implantation) reduced prostaglandin E2- (PGE2, 400 ng/paw; 50 µL; intraplantar injection) and carrageenan-induced hypernociception (500 µg/paw; 100 µL; intraplantar injection). Walker tumor-induced analgesia was reversed (99.3% for carrageenan and 77.2% for PGE2) by a selective inhibitor of nitric oxide synthase (L-NAME; 90 mg/kg, ip) and L-arginine (200 mg/kg, ip), which prevented (80% for carrageenan and 65% for PGE2) the effect of L-NAME. Treatment with the soluble guanylyl cyclase inhibitor ODQ (100% for carrageenan and 95% for PGE2; 8 µg/paw) and the ATP-sensitive K+ channel (KATP) blocker glibenclamide (87.5% for carrageenan and 100% for PGE2; 160 µg/paw) reversed the antinociceptive effect of tumor bearing in a statistically significant manner (P < 0.05). The present study confirmed an intrinsic peripheral antinociceptive effect of Walker tumor bearing in rats. This antinociceptive effect seemed to be mediated by activation of the NO/cGMP pathway followed by the opening of KATP channels.
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Affiliation(s)
- A L R Barbosa
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
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Gondim DV, Costa JL, Rocha SS, Brito GADC, Ribeiro RDA, Vale ML. Antinociceptive and anti-inflammatory effects of electroacupuncture on experimental arthritis of the rat temporomandibular joint. Can J Physiol Pharmacol 2012; 90:395-405. [PMID: 22443108 DOI: 10.1139/y2012-003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study investigated the antinociceptive and anti-inflammatory effects of electroacupuncture (EA) on zymosan-induced acute arthritis of the rat temporomandibular joint (TMJ). Male Wistar rats were injected with saline or zymosan (control group; 2 mg) into the left TMJ. Low frequency EA (10 Hz, 30 min) was performed at acupoints (LI4, LI11, ST36, ST44) or sham points 2 h after or 1 h before zymosan administration. Mechanical hypernociception was accessed by the electronic Von Frey method after zymosan administration. Rats were sacrificed 6 h after zymosan administration and the joint was removed for histopathological analysis, myeloperoxidase activity assessment, vascular permeability observations, and immunohistochemical verification of inflammatory mediators. The results showed that EA inhibited zymosan-induced hypernociception, compared with the control group and with the sham group (p < 0.05). The results showed that EA inhibited inflammatory parameters such as neutrophil migration, vascular permeability, and tumour necrosis factor α (TNF-α), cyclooxygenase-2 (COX-2), and inducible nitric oxide synthase (iNOS) expression in the TMJ compared with the sham group (p < 0.05). Histopathological analysis showed that EA significantly inhibited edema and periarticular infiltration (p < 0.05) compared with the control and sham groups. EA at acupoints produced antinociceptive and anti-inflammatory effects on zymosan-induced arthritis in the rat TMJ.
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Affiliation(s)
- Delane Viana Gondim
- Medical Sciences Post-Graduation, Federal University of Ceará (UFC), Fortaleza, Ceará, Brazil.
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de Morais NCR, Barbosa AM, Vale ML, Villaverde AB, de Lima CJ, Cogo JC, Zamuner SR. Anti-inflammatory effect of low-level laser and light-emitting diode in zymosan-induced arthritis. Photomed Laser Surg 2010; 28:227-32. [PMID: 19780633 DOI: 10.1089/pho.2008.2422] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE The aim of this work was to investigate the effect of low-level laser therapy (LLLT) and light-emitting diode (LED) on formation of edema, increase in vascular permeability, and articular joint hyperalgesia in zymosan-induced arthritis. BACKGROUND DATA It has been suggested that low-level laser and LED irradiation can modulate inflammatory processes. MATERIAL AND METHODS Arthritis was induced in male Wistar rats (250-280 g) by intra-articular injection of zymosan (1 mg in 50 microL of a sterile saline solution) into one rear knee joint. Animals were irradiated immediately, 1 h, and 2 h after zymosan administration with a semiconductor laser (685 nm and 830 nm) and an LED at 628 nm, with the same dose (2.5 J/cm(2)) for laser and LED. In the positive control group, animals were injected with the anti-inflammatory drug dexamethasone 1 h prior to the zymosan administration. Edema was measured by the wet/dry weight difference of the articular tissue, the increase in vascular permeability was assessed by the extravasation of Evans blue dye, and joint hyperalgesia was measured using the rat knee-joint articular incapacitation test. RESULTS Irradiation with 685 nm and 830 nm laser wavelengths significantly inhibited edema formation, vascular permeability, and hyperalgesia. Laser irradiation, averaged over the two wavelengths, reduced the vascular permeability by 24%, edema formation by 23%, and articular incapacitation by 59%. Treatment with LED (628 nm), with the same fluence as the laser, had no effect in zymosan-induced arthritis. CONCLUSION LLLT reduces inflammatory signs more effectively than LED irradiation with similar irradiation times (100 sec), average outputs (20 mW), and energy doses (2 J) in an animal model of zymosan-induced arthritis. The anti-inflammatory effects of LLLT appear to be a class effect, which is not wavelength specific in the red and infrared parts of the optical spectrum.
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Barbosa ALR, Pinheiro CA, Oliveira GJ, Moraes MO, Ribeiro RA, Vale ML, Souza MHLP. Tumor bearing decreases systemic acute inflammation in rats--role of mast cell degranulation. Inflamm Res 2009; 58:235-40. [PMID: 19199089 DOI: 10.1007/s00011-008-8226-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE AND DESIGN To investigate the effect of experimental tumor bearing on acute inflammation models in rats. METHODS Four and 7 days after Walker tumor implantation in the right armpit, carrageenan or dextran- induced edema in the contralateral paw, carrageenan induced neutrophil migration into peritoneal cavities, cutaneous vascular permeability induced by bradykinin, histamine, serotonin, substance P, capsaicin or compound 48/80, and mesenteric mast cell degranulation induced by compound 48/80 were evaluated. The control group did not receive tumor implantation. Statistical analysis was performed using one way analysis of variance (ANOVA) followed by the Bonferroni test. RESULTS On the 7(th) day after tumor inoculation, there were significant decreases in both carrageenan and dextran- induced paw edema. Tumor bearing did not change the neutrophil infiltration induced by carrageenan. There were decreases in cutaneous vascular permeability induced by compound 48/80, serotonin or bradykinin, but not that induced by histamine, substance P. A significant inhibition of mesenteric mast cell degranulation induced by compound 48/80 was observed, on the 4(th) and 7(th) days after tumor inoculation. CONCLUSION Tumor bearing can limit mast cell function and vascular events in acute systemic inflammation in rats, without changes in neutrophil migration.
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Affiliation(s)
- A L R Barbosa
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza-CE, Brazil
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Vale ML, Rolim DE, Cavalcante IF, Ribeiro RA, Souza MHLP. Role of NO/cGMP/KATP pathway in antinociceptive effect of sildenafil in zymosan writhing response in mice. Inflamm Res 2007; 56:83-8. [PMID: 17431745 DOI: 10.1007/s00011-006-6109-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE Previous studies have found that sildenafil produces antinociception in experimental models. This work was undertaken to determine the participation of the NO/cGMP/K(ATP) pathway in the antinociception induced by sildenafil. METHODS AND RESULTS The antinociceptive effect of sildenafil was determined in the zymosan-induced writhing response in mice. Sildenafil (1-30 mg/kg; i. p.), given 30 min before zymosan (1 mg/animal; i. p.), inhibited the writhing response (5.0 +/- 1.3 versus 26.6 +/- 2.7; p < 0.001) in a dose-dependent manner. L-NAME (30 mg/kg; s. c.) significantly (p < 0.05) reversed this effect (16.6 +/- 3.1 versus 6.4 +/- 1.6) and L-arginine (200 mg/kg; i. p.) prevented the L-NAME effect (6.8 +/- 0.8 versus 16.6 +/- 3.1; p < 0.05). ODQ (0,3-1 mg/kg; i. p.) and glybenclamide (0.3-1 mg/kg; p. o.) pre-treatment significantly (p < 0.01) inhibited the antinociceptive effect of sildenafil (18.0 +/- 1.7 versus 2.1 +/- 1.0 and 5.5 +/- 0.7 versus 1.6+0.7, respectively). Diazoxide (10 mg/kg; s. c) significantly (p < 0.001) abolished the glybenclamide effect (1.6 +/- 0.8 versus 14 +/- 1.2). CONCLUSIONS The data indicate that the antinociceptive effect of sildenafil is dependent on the activation of the NO/cGMP/ K(ATP) pathway.
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Affiliation(s)
- M L Vale
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Rua Cel. Nunes de Melo, 1127, Rodolfo Teófilo, CEP 60.430-270, Fortaleza-CE, Brazil
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Botelho MA, Rao VS, Carvalho CBM, Bezerra-Filho JG, Fonseca SGC, Vale ML, Montenegro D, Cunha F, Ribeiro RA, Brito GA. Lippia sidoides and Myracrodruon urundeuva gel prevents alveolar bone resorption in experimental periodontitis in rats. J Ethnopharmacol 2007; 113:471-8. [PMID: 17714897 DOI: 10.1016/j.jep.2007.07.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2007] [Revised: 06/24/2007] [Accepted: 07/01/2007] [Indexed: 05/16/2023]
Abstract
In Brazilian folk medicine, Lippia sidoides (Ls) and Myracrodruon urundeuva (Mu) have gained popularity and reputation as effective antimicrobial and anti-inflammatory agents. This work aimed to evaluate the effect of topical herbal gel from Ls 0.5% (v/w) and Mu 5% (w/w) in experimental periodontal disease (EPD) in rats. Wistar rats were subjected to ligature placement around the second upper left molars. Animals were treated topically with Ls and/or Mu-based gel, immediately after EPD induction and three times/day for 11 days until the rats were sacrificed (11th day). Saline-based gel was utilized as control for all experiments and doxycycline based gel 10% (w/w) was utilized as reference substance. Animals were weighed daily. Alveolar bone loss was measured as the difference (in millimeters) between the cusp tip and the alveolar bone. The periodontum and the surrounding gingivae were examined at histopathology, as well as the neutrophil influx into the gingivae was assayed using myeloperoxidase activity and cytokine production mainly tumor necrosis factor-alpha (TNF-alpha) and interleukin-1beta (IL-1beta) levels by ELISA method. The local bacterial flora was assessed through culture of the gingival tissue in standard aerobic and anaerobic media. Alveolar bone loss was significantly inhibited by Ls and Mu combined treatment compared to the saline control group. Ls and Mu combined treatment reduced tissue lesion at histopathology, with partial preservation of the periodontum, coupled to decreased myeloperoxidase activity as well as significantly inhibited TNF-alpha and IL-1beta production in gingival tissue compared to the saline control group. Ls and Mu combined treatment also prevented the growth of oral microorganisms and the weight loss. Ls and Mu combined based gel treatment preserved alveolar bone resorption and demonstrated anti-inflammatory and antibacterial activities in experimental periodontitis.
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Affiliation(s)
- M A Botelho
- Department of Community Health, Faculty of Medicine, Federal University of Ceará, Rua Professor Costa Mendes, 60.430-270 Fortaleza, Ceará, Brazil.
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Leitão RFC, Ribeiro RA, Bellaguarda EAL, Macedo FDB, Silva LR, Oriá RB, Vale ML, Cunha FQ, Brito GAC. Role of nitric oxide on pathogenesis of 5-fluorouracil induced experimental oral mucositis in hamster. Cancer Chemother Pharmacol 2006; 59:603-12. [PMID: 16944152 DOI: 10.1007/s00280-006-0301-y] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2006] [Accepted: 07/19/2006] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Mucositis induced by antineoplastic drugs is an important, dose-limiting, and costly side effect of cancer therapy. AIM To investigate the role of nitric oxide (NO) on the pathogenesis of 5-fluorouracil (5-FU)-induced oral mucositis. MATERIALS AND METHODS Oral mucositis was induced by two intraperitoneal (i.p) administrations of 5-FU on the first and second days of the experiment (60 and 40 mg/kg, respectively) in male hamsters. Animals were treated subcutaneously with saline (0.4 ml), 1,400 W (1 mg/kg), aminoguanidine (5 or 10 mg/kg) or Nphi-Nitro-L-Arginine Methyl Ester (L-NAME) (5, 10, or 20 mg/kg) 1 h before the injections of 5-FU and daily until sacrifice, on the tenth day. Macroscopic and histopathological analyses were evaluated and graded. Tissues from the cheek pouches were harvested for measurement of myeloperoxidase (MPO) activity, nitrite level, and immunohistochemistry for induced nitric oxide synthase (iNOS). RESULTS Treatment with 1,400 W or aminoguanidine reduced macroscopic and histological parameters of oral mucositis, and reduced the inflammatory cell infiltration as detected by histopathology and by MPO activity. In contrast, the administration of L-NAME did not significantly reverse the inflammatory alterations induced by experimental mucositis. Increased NOS activity, nitrite level and immunostaining for iNOS were detected on the check pouch tissue of animals submitted to 5-FU-induced oral mucositis on the tenth day. CONCLUSION These results suggest an important role of NO produced by iNOS in the pathogenesis of oral mucositis induced by 5-FU.
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Affiliation(s)
- R F C Leitão
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina da Universidade Federal do Ceará, Rua Cel Nunes de Melo, 1127, 60.430-270 Fortaleza, CE, Brazil
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Abstract
The intraperitoneal injection of agents that increase the intracellular level of cyclic AMP (cAMP), reduced significantly the number of writhes induced by acetic acid and zymosan in mice. However, dibutyryl cyclic AMP (Db-cAMP) induced a dual response: (a) low doses caused antinociception, and (b) a high dose potentiated the nociceptive effect of a low concentration of acetic acid. High doses of Db-cAMP also reversed the antinociceptive effect of dexamethasone and the depletion of resident peritoneal cells. We also demonstrated that a low dose of Db-cAMP, forskolin or dexamethasone inhibited the production of tumor necrosis factor-alpha and interleukin-1 beta by macrophages stimulated by zymosan. In conclusion, this study suggests that cAMP has a dual effect in the writhing model: an antinociceptive effect due to its modulatory action on resident peritoneal cells, thus, reducing the synthesis of mediators involved in the nociceptive response, and a nociceptive effect by directly sensitizing the nociceptive neuron.
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Affiliation(s)
- G A Brito
- Department of Morphology, School of Medicine, Federal University of Ceará, CE, Fortaleza, Brazil
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Abstract
Tumor necrosis factor alpha (TNF-alpha) may have a pivotal role in the genesis of mechanical inflammatory hyperalgesia in rats and in the nociceptive writhing response in mice. Thalidomide has been shown to selectively inhibit TNF-alpha production. We therefore investigated the effect of thalidomide on these responses as well as on the hot plate response in mice. Hyperalgesic responses to intraplantar (i.pl.) injections of carrageenin or bradykinin, which act by stimulating TNF-alpha release, but not responses to TNF-alpha or prostaglandin E(2), were inhibited in a dose-dependent manner by pretreatment of the animals with thalidomide. The nociceptive writhing responses induced by intraperitoneal (i.p.) injections of zymosan or acetic acid were also inhibited in a dose-dependent manner by pretreatment of mice with thalidomide. Moreover, the thalidomide pretreatment also reduced the TNF-alpha mRNA levels in the peritoneal cells induced by injection of zymosan in mice. The analgesic effect of thalidomide is not due to a central effect, since the drug had no effect in the hot plate test. The demonstration that thalidomide is able to inhibit inflammatory hyperalgesia in rats and the writhing nociceptive response in mice suggests that these analgesic effects seem to be a consequence of the inhibition of TNF-alpha production, and indicates the need for investigations on the possibility of the use of thalidomide for the treatment of pain refractory to classical non-narcotic analgesics.
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Affiliation(s)
- R A Ribeiro
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
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Ribeiro RA, Vale ML, Thomazzi SM, Paschoalato AB, Poole S, Ferreira SH, Cunha FQ. Involvement of resident macrophages and mast cells in the writhing nociceptive response induced by zymosan and acetic acid in mice. Eur J Pharmacol 2000; 387:111-8. [PMID: 10633169 DOI: 10.1016/s0014-2999(99)00790-6] [Citation(s) in RCA: 354] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Intraperitoneal administration of zymosan and acetic acid induced a dose-dependent nociceptive writhing response in mice. Lavage of the peritoneal cavities with saline reduced the number of total resident peritoneal cells and caused a proportional decrease in the nociceptive responses induced by these stimuli. Furthermore, the specific reduction of the peritoneal mast cell population by intraperitoneal administration of compound 48/80 also reduced the nociceptive responses induced by zymosan and acetic acid. In contrast, enhancement of the peritoneal macrophage population by pretreatment of the cavities with thioglycollate caused an increase in the number of writhes induced by both stimuli. These data suggest that the nociceptive responses induced by zymosan and acetic acid are dependent upon the peritoneal resident macrophages and mast cells. These cells modulate the nociceptive response induced by zymosan and acetic acid via release of tumour necrosis factor alpha (TNF-alpha), interleukin 1beta and interleukin 8. This suggestion is supported by the following observations: (a) pretreatment of the peritoneal cavities with antisera against these cytokines reduced the nociceptive responses induced by these stimuli; (b) peritoneal cells harvested from cavities injected with zymosan or acetic acid released both interleukin 1beta and TNF-alpha; (c) although individual injection of TNF-alpha, interleukin 1beta or interleukin 8 did not induce the nociceptive effect, intraperitoneal injection of a mixture of these three recombinant cytokines caused a significant nociceptive writhing response. In conclusion, our results suggest that the nociceptive activity of zymosan and acetic acid in the writhing model is due to the release of TNF-alpha, interleukin 1beta and interleukin 8 by resident peritoneal macrophages and mast cells.
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Affiliation(s)
- R A Ribeiro
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
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