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Dantas CG, da Paixão AO, Nunes TLGM, Silva IJF, dos S. Lima B, Araújo AAS, de Albuquerque-Junior RLC, Gramacho KP, Padilha FF, da Costa LP, Severino P, Cardoso JC, Souto EB, Gomes MZ. Africanized Bee Venom ( Apis mellifera Linnaeus): Neuroprotective Effects in a Parkinson's Disease Mouse Model Induced by 6-hydroxydopamine. Toxics 2022; 10:583. [PMID: 36287863 PMCID: PMC9609968 DOI: 10.3390/toxics10100583] [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] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/24/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
This study evaluated the neuroprotective effects of the Africanized bee venom (BV) and its mechanisms of action after 6-hydroxydopamine-(6-OHDA)-induced lesion in a mice model. Prior to BV treatment, mice received intrastriatal microinjections of 6-OHDA (no induced dopaminergic neuronal death) or ascorbate saline (as a control). BV was administered subcutaneously at different dosages (0.01, 0.05 or 0.1 mg·Kg-1) once every two days over a period of 3 weeks. The open field test was carried out, together with the immunohistochemical and histopathological analysis. The chemical composition of BV was also assessed, identifying the highest concentrations of apamin, phospholipase A2 and melittin. In the behavioral evaluation, the BV (0.1 mg·Kg-1) counteracted the 6-OHDA-induced decrease in crossings and rearing. 6-OHDA caused loss of dopaminergic cell bodies in the substantia nigra pars compacta and fibers in striatum (STR). Mice that received 0.01 mg·Kg-1 showed significant increase in the mean survival of dopaminergic cell bodies. Increased astrocytic infiltration occurred in the STR of 6-OHDA injected mice, differently from those of the groups treated with BV. The results suggested that Africanized BV has neuroprotective activity in an animal model of Parkinson's disease.
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Affiliation(s)
- Camila G. Dantas
- Institute of Research and Technology, Tiradentes University, Av. Murilo Dantas, 300, Aracaju 49032-490, Sergipe, Brazil
| | - Ailma O. da Paixão
- Institute of Research and Technology, Tiradentes University, Av. Murilo Dantas, 300, Aracaju 49032-490, Sergipe, Brazil
| | - Tássia L. G. M. Nunes
- Institute of Research and Technology, Tiradentes University, Av. Murilo Dantas, 300, Aracaju 49032-490, Sergipe, Brazil
| | - Italo J. F. Silva
- Institute of Research and Technology, Tiradentes University, Av. Murilo Dantas, 300, Aracaju 49032-490, Sergipe, Brazil
| | - Bruno dos S. Lima
- Department of Pharmacy, Federal University of Sergipe (U.F.S.), Cidade Universitária Prof. José Aloísio de Campos, Av. Marechal Rondon, Jardim Rosa Elze, São Cristóvão 49100-000, Sergipe, Brazil
| | - Adriano A. S. Araújo
- Department of Pharmacy, Federal University of Sergipe (U.F.S.), Cidade Universitária Prof. José Aloísio de Campos, Av. Marechal Rondon, Jardim Rosa Elze, São Cristóvão 49100-000, Sergipe, Brazil
| | | | - Kátia P. Gramacho
- Department of Animal Science, Rural Federal University of Semi-Árido (U.F.E.R.S.A), Av. Francisco Mota, Costa e Silva, Mossoró 49032-490, Natal, Brazil
| | - Francine F. Padilha
- Institute of Research and Technology, Tiradentes University, Av. Murilo Dantas, 300, Aracaju 49032-490, Sergipe, Brazil
| | - Luiz P. da Costa
- Post-Graduation Program in Chemistry, Federal University of Sergipe (U.F.S.), Cidade Universitária Prof. José Aloísio de Campos, Av. Marechal Rondon, Jardim Rosa Elze, São Cristóvão 49100-000, Sergipe, Brazil
| | - Patricia Severino
- Institute of Research and Technology, Tiradentes University, Av. Murilo Dantas, 300, Aracaju 49032-490, Sergipe, Brazil
| | - Juliana C. Cardoso
- Institute of Research and Technology, Tiradentes University, Av. Murilo Dantas, 300, Aracaju 49032-490, Sergipe, Brazil
| | - Eliana B. Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- REQUIMTE/UCIBIO, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Margarete Z. Gomes
- Department of Animal Science, Rural Federal University of Semi-Árido (U.F.E.R.S.A), Av. Francisco Mota, Costa e Silva, Mossoró 49032-490, Natal, Brazil
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de Mendonça MAA, Ribeiro ARS, de Lima AK, Bezerra GB, Pinheiro MS, de Albuquerque-Júnior RLC, Gomes MZ, Padilha FF, Thomazzi SM, Novellino E, Santini A, Severino P, B. Souto E, Cardoso JC. Red Propolis and Its Dyslipidemic Regulator Formononetin: Evaluation of Antioxidant Activity and Gastroprotective Effects in Rat Model of Gastric Ulcer. Nutrients 2020; 12:nu12102951. [PMID: 32993069 PMCID: PMC7600383 DOI: 10.3390/nu12102951] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 12/12/2022] Open
Abstract
Propolis has various pharmacological properties of clinical interest, and is also considered a functional food. In particular, hydroalcoholic extracts of red propolis (HERP), together with its isoflavonoid formononetin, have recognized antioxidant and anti-inflammatory properties, with known added value against dyslipidemia. In this study, we report the gastroprotective effects of HERP (50–500 mg/kg, p.o.) and formononetin (10 mg/kg, p.o.) in ethanol and non-steroidal anti-inflammatory drug-induced models of rat ulcer. The volume, pH, and total acidity were the evaluated gastric secretion parameters using the pylorus ligature model, together with the assessment of gastric mucus contents. The anti-Helicobacter pylori activities of HERP were evaluated using the agar-well diffusion method. In our experiments, HERP (250 and 500 mg/kg) and formononetin (10 mg/kg) reduced (p < 0.001) total lesion areas in the ethanol-induced rat ulcer model, and reduced (p < 0.05) ulcer indices in the indomethacin-induced rat ulcer model. Administration of HERP and formononetin to pylorus ligature models significantly decreased (p < 0.01) gastric secretion volumes and increased (p < 0.05) mucus production. We have also shown the antioxidant and anti-Helicobacter pylori activities of HERP. The obtained results indicate that HERP and formononetin are gastroprotective in acute ulcer models, suggesting a prominent role of formononetin in the effects of HERP.
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Affiliation(s)
- Marcio A. A. de Mendonça
- University of Tiradentes, Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil; (M.A.A.d.M.); (A.K.d.L.); (G.B.B.); (M.S.P.); (R.L.C.d.A.-J.); (M.Z.G.); (F.F.P.); (P.S.)
| | - Ana R. S. Ribeiro
- Departament of Physiology, Federal University of Sergipe, Av. Marechal Rondon, Cidade Universitária, São Cristóvão CEP 49100-000, Sergipe, Brazil; (A.R.S.R.); (S.M.T.)
| | - Adriana K. de Lima
- University of Tiradentes, Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil; (M.A.A.d.M.); (A.K.d.L.); (G.B.B.); (M.S.P.); (R.L.C.d.A.-J.); (M.Z.G.); (F.F.P.); (P.S.)
| | - Gislaine B. Bezerra
- University of Tiradentes, Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil; (M.A.A.d.M.); (A.K.d.L.); (G.B.B.); (M.S.P.); (R.L.C.d.A.-J.); (M.Z.G.); (F.F.P.); (P.S.)
| | - Malone S. Pinheiro
- University of Tiradentes, Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil; (M.A.A.d.M.); (A.K.d.L.); (G.B.B.); (M.S.P.); (R.L.C.d.A.-J.); (M.Z.G.); (F.F.P.); (P.S.)
| | - Ricardo L. C. de Albuquerque-Júnior
- University of Tiradentes, Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil; (M.A.A.d.M.); (A.K.d.L.); (G.B.B.); (M.S.P.); (R.L.C.d.A.-J.); (M.Z.G.); (F.F.P.); (P.S.)
- Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil
| | - Margarete Z. Gomes
- University of Tiradentes, Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil; (M.A.A.d.M.); (A.K.d.L.); (G.B.B.); (M.S.P.); (R.L.C.d.A.-J.); (M.Z.G.); (F.F.P.); (P.S.)
- Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil
| | - Francine F. Padilha
- University of Tiradentes, Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil; (M.A.A.d.M.); (A.K.d.L.); (G.B.B.); (M.S.P.); (R.L.C.d.A.-J.); (M.Z.G.); (F.F.P.); (P.S.)
- Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil
| | - Sara M. Thomazzi
- Departament of Physiology, Federal University of Sergipe, Av. Marechal Rondon, Cidade Universitária, São Cristóvão CEP 49100-000, Sergipe, Brazil; (A.R.S.R.); (S.M.T.)
| | - Ettore Novellino
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy;
| | - Antonello Santini
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy;
- Correspondence: (A.S.); (E.B.S.); (J.C.C.); Tel.: +39-81-253-9317 (A.S.); +351-239-488-400 (E.B.S.); +55-79-3218-2190 (J.C.C.)
| | - Patricia Severino
- University of Tiradentes, Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil; (M.A.A.d.M.); (A.K.d.L.); (G.B.B.); (M.S.P.); (R.L.C.d.A.-J.); (M.Z.G.); (F.F.P.); (P.S.)
- Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil
- Tiradentes Institute, 150 Mt Vernon St, Dorchester, MA 02125, USA
| | - Eliana B. Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- CEB—Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Correspondence: (A.S.); (E.B.S.); (J.C.C.); Tel.: +39-81-253-9317 (A.S.); +351-239-488-400 (E.B.S.); +55-79-3218-2190 (J.C.C.)
| | - Juliana C. Cardoso
- University of Tiradentes, Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil; (M.A.A.d.M.); (A.K.d.L.); (G.B.B.); (M.S.P.); (R.L.C.d.A.-J.); (M.Z.G.); (F.F.P.); (P.S.)
- Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, Aracaju CEP 49032-490, Sergipe, Brazil
- Correspondence: (A.S.); (E.B.S.); (J.C.C.); Tel.: +39-81-253-9317 (A.S.); +351-239-488-400 (E.B.S.); +55-79-3218-2190 (J.C.C.)
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de Vasconcelos ACP, Morais RP, Novais GB, da S Barroso S, Menezes LRO, Dos Santos S, da Costa LP, Correa CB, Severino P, Gomes MZ, Albuquerque Júnior RLC, Cardoso JC. In situ photocrosslinkable formulation of nanocomposites based on multi-walled carbon nanotubes and formononetin for potential application in spinal cord injury treatment. Nanomedicine 2020; 29:102272. [PMID: 32730980 DOI: 10.1016/j.nano.2020.102272] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 12/19/2022]
Abstract
Carbon nanotubes (CN) have been studied to treat spinal cord injuries because of its electrical properties and nanometric dimensions. This work aims to develop a photopolymerizable hydrogel containing CN functionalized with an anti-inflammatory molecule to be used in situ on spinal cord injuries. The CN functionalization step was done using the drug (formononetin). The nanocomposites were characterized by morphological analysis, FTIR, Raman Spectroscopy, thermal analysis and cytotoxicity assays (MTT and HET-CAM). The nanocomposites were incorporated into gelatin methacryloyl hydrogel and exposed to UV light for photopolymerization. The volume of the formulation and the UV exposition time were also analyzed. The CN characterization showed that formononetin acted as a functionalization agent. The functionalized CN showed safe characteristics and can be incorporated in photocrosslinkable formulation. The UV exposition time for the formulation photopolymerization was compatible with the cell viability and also occurred in the injury site.
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Affiliation(s)
| | | | | | | | | | | | - Luiz P da Costa
- Federal University of Amazonas (UFAM), Itacoatiara/AM, Brazil.
| | | | - Patrícia Severino
- Tiradentes University (UNIT), Aracaju/SE, Brazil; Technology and Research Institute (ITP), Aracaju/SE, Brazil.
| | - Margarete Z Gomes
- Tiradentes University (UNIT), Aracaju/SE, Brazil; Technology and Research Institute (ITP), Aracaju/SE, Brazil.
| | | | - Juliana C Cardoso
- Tiradentes University (UNIT), Aracaju/SE, Brazil; Technology and Research Institute (ITP), Aracaju/SE, Brazil.
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Martins WB, Rodrigues SA, Silva HK, Dantas CG, Júnior WDEL, Filho LX, Cardoso JC, Gomes MZ. Neuroprotective effect of Portulaca oleracea extracts against 6-hydroxydopamine-induced lesion of dopaminergic neurons. AN ACAD BRAS CIENC 2016; 88:1439-50. [PMID: 27508995 DOI: 10.1590/0001-3765201620150574] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 11/27/2015] [Indexed: 01/05/2023] Open
Abstract
The Portulaca oleracea L. (Portulacaceae) is a cosmopolitan species with a wide range of biological activities, including antioxidant and neuroprotective actions. We investigated the effects of P. oleracea extracts in a 6-hydroxydopamine rat model of Parkinson's disease, a debilitating disorder without effective treatments. Chemical profiles of aqueous and ethanolic extracts of whole plant were analyzed by thin layer chromatography and the antioxidant activity was assessed by 2,2-diphenyl-1-picrilhidrazila method. Male Wistar rats received intrastriatal 6-hydroxydopamine and were treated with vehicle or extracts (oral, 200 and 400 mg/kg) daily for two weeks. The behavioral open field test was conducted at days 1 and 15. Immunohistochemical analysis was performed 4 weeks after surgery to quantify tyrosine-hydroxylase cell counts in the substantia nigra pars compacta. Extracts presented antioxidant activity in concentrations above 300 µg/kg. The chromatographic analysis revealed the presence of Levodopa, alkaloids, flavonoids, saponins, tannins, terpenoids and polysaccharides. Both extracts improved motor recovery 15 days after lesion and protected from tyrosine-hydroxylase cell loss after 4 weeks, but these effects were more evident for the aqueous extract. Because the dopamine precursor is present, in addition to antioxidant compounds and neuroprotective effects, P. oleracea can be considered as potential strategy for treating Parkinson's disease.
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Affiliation(s)
- Waleska B Martins
- Instituto de Tecnologia e Pesquisa/ITP, Av. Murilo Dantas, 300, Farolândia, 49032-490 Aracaju, SE, Brasil
| | - Sheyla A Rodrigues
- Instituto de Tecnologia e Pesquisa/ITP, Av. Murilo Dantas, 300, Farolândia, 49032-490 Aracaju, SE, Brasil
| | - Hatamy K Silva
- Instituto de Tecnologia e Pesquisa/ITP, Av. Murilo Dantas, 300, Farolândia, 49032-490 Aracaju, SE, Brasil
| | - Camila G Dantas
- Instituto de Tecnologia e Pesquisa/ITP, Av. Murilo Dantas, 300, Farolândia, 49032-490 Aracaju, SE, Brasil
| | - Waldecy DE Lucca Júnior
- Universidade Federal de Sergipe, Cidade Universitária Prof. José Aloísio de Campos, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brasil
| | - Lauro Xavier Filho
- Instituto de Tecnologia e Pesquisa/ITP, Av. Murilo Dantas, 300, Farolândia, 49032-490 Aracaju, SE, Brasil
| | - Juliana C Cardoso
- Instituto de Tecnologia e Pesquisa/ITP, Av. Murilo Dantas, 300, Farolândia, 49032-490 Aracaju, SE, Brasil
| | - Margarete Z Gomes
- Instituto de Tecnologia e Pesquisa/ITP, Av. Murilo Dantas, 300, Farolândia, 49032-490 Aracaju, SE, Brasil
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Ribeiro DR, Alves ÂVF, dos Santos EP, Padilha FF, Gomes MZ, Rabelo AS, Cardoso JC, Massarioli AP, de Alencar SM, de Albuquerque-Júnior RLC. Inhibition of DMBA-induced Oral Squamous Cells Carcinoma Growth by Brazilian Red Propolis in Rodent Model. Basic Clin Pharmacol Toxicol 2015; 117:85-95. [DOI: 10.1111/bcpt.12374] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 12/22/2014] [Indexed: 12/23/2022]
Affiliation(s)
- Danielle R. Ribeiro
- Laboratory of Morphology and Experimental Pathology; Institute of Technology and Research -ITP; Aracaju SE Brazil
| | - Ângela Valéria F. Alves
- Laboratory of Morphology and Experimental Pathology; Institute of Technology and Research -ITP; Aracaju SE Brazil
| | - Esaú P. dos Santos
- Laboratory of Morphology and Experimental Pathology; Institute of Technology and Research -ITP; Aracaju SE Brazil
| | - Francine F. Padilha
- Laboratory of Biomaterials; Institute of Technology and Research -ITP; Aracaju SE Brazil
- Department of Pharmacy; University Tiradentes; Aracaju SE Brazil
| | - Margarete Z. Gomes
- Laboratory of Morphology and Experimental Pathology; Institute of Technology and Research -ITP; Aracaju SE Brazil
| | - Alessandra S. Rabelo
- Laboratory of Biomaterials; Institute of Technology and Research -ITP; Aracaju SE Brazil
- Department of Pharmacy; University Tiradentes; Aracaju SE Brazil
| | - Juliana C. Cardoso
- Laboratory of Biomaterials; Institute of Technology and Research -ITP; Aracaju SE Brazil
- Department of Pharmacy; University Tiradentes; Aracaju SE Brazil
| | - Adna Prado Massarioli
- Department of Agri-Food Industry, Food and Nutrition; ‘Luiz de Queiroz’ College of Agriculture; University of Sao Paulo (USP); Piracicaba SP Brazil
| | - Severino Matias de Alencar
- Department of Agri-Food Industry, Food and Nutrition; ‘Luiz de Queiroz’ College of Agriculture; University of Sao Paulo (USP); Piracicaba SP Brazil
| | - Ricardo Luiz C. de Albuquerque-Júnior
- Laboratory of Morphology and Experimental Pathology; Institute of Technology and Research -ITP; Aracaju SE Brazil
- Department of Odontology; University Tiradentes; Aracaju SE Brazil
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Dantas CG, Nunes TL, Nunes TL, da Paixão AO, Reis FP, Júnior WDL, Cardoso JC, Gomes MZ, Gramacho KP. Pharmacological evaluation of bee venom and melittin. Revista Brasileira de Farmacognosia 2014. [DOI: 10.1590/0102-695x20142413365] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Santos EP, Cavalcante DR, Melo AU, Pereira JC, Gomes MZ, Albuquerque RL. Plasmacytoid myoepithelioma of minor salivary glands: report of case with emphasis in the immunohistochemical findings. Head Face Med 2011; 7:24. [PMID: 22152025 PMCID: PMC3285037 DOI: 10.1186/1746-160x-7-24] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [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: 03/24/2011] [Accepted: 12/12/2011] [Indexed: 11/10/2022] Open
Abstract
Myoepithelioma is a rare benign tumor of the salivary glands and is usually seen in the parotid gland and the minor salivary glands. It was once considered to be a type of pleomorphic adenoma (PA), but myoepitheliomas are today believed to be relatively aggressive tumors. Myoepitheliomas are most common in young adults between the ages of 30 and 50 and there are very few cases reported in individuals less than 18 years of age. We report a case of myoepithelioma located in the hard palate in a 15-year-old Brazilian male. The tumor was composed of plasmacytoid myoepithelial cells. An analysis of the immunohistochemical profile of the tumor cells showed positivity for vimentin, S-100 protein, and glial fibrillary acidic protein (GFAP), but not for smooth muscle actin (α-SMA) and cytokeratin 14 (CK14). We report this case because of the rarity of this tumor, especially in adolescents. We also discuss the histological parameters of the differential diagnosis of this tumor as well as its immunohistochemical profile.
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Affiliation(s)
- Esaú P Santos
- Department of Dentistry, School of Dentistry, University Tiradentes, Aracaju, SE, Brazil.
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Bassi GS, Broiz AC, Gomes MZ, Brandão ML. Evidence for mediation of nociception by injection of the NK-3 receptor agonist, senktide, into the dorsal periaqueductal gray of rats. Psychopharmacology (Berl) 2009; 204:13-24. [PMID: 19093101 DOI: 10.1007/s00213-008-1434-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2008] [Accepted: 12/01/2008] [Indexed: 10/21/2022]
Abstract
RATIONALE Ultrasound vocalizations (USVs) at approximately 22 kHz are usual components of the defensive response of rats. However, depending on the neural substrate that is activated, such as the dorsal periaqueductal gray (dPAG), USV emissions may be reduced. Activation of neurokinin-1 (NK-1)-mediated mechanisms of the dPAG causes analgesia, reduced 22 kHz USVs, and anxiogenic-like effects in rats exposed to the elevated plus maze (EPM). Involvement of other types of neurokinin receptors in this activation has not yet been evaluated. OBJECTIVES The present study examined whether local injections of the selective NK-3 agonist senktide (1-100 pmol/0.2 microL) into the dPAG can (1) cause anxiogenic effects in the EPM, (2) influence novelty-induced 22 kHz USVs, or (3) change nociceptive reactivity in the tail-flick test. RESULTS Senktide elicited a significant increase in exploratory behavior, an effect accompanied by hyperalgesia and an increase in the number of 22 kHz USVs. The nociceptive effects, increased locomotor activity, and USV emissions elicited by local injections of senktide (50 pmol/0.2 microL) were reduced by prior injections of the selective NK-3 receptor antagonist SB222200 (50 pmol/0.2 microL) into the dPAG. CONCLUSIONS These findings show that NK-3 receptors in the dPAG mediate nociceptive responses in this area, contrasting with the known fear-related processes mediated by NK-1 receptors in the dPAG. Both hyperalgesia and fear-related processes are accompanied by emissions of 22 kHz USVs.
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Affiliation(s)
- Gabriel S Bassi
- Instituto de Neurociências & Comportamento-INeC, Ribeirão Preto, SP, Brasil
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Del Bel EA, Guimarães FS, Bermúdez-Echeverry M, Gomes MZ, Schiaveto-de-souza A, Padovan-Neto FE, Tumas V, Barion-Cavalcanti AP, Lazzarini M, Nucci-da-Silva LP, de Paula-Souza D. Role of nitric oxide on motor behavior. Cell Mol Neurobiol 2005; 25:371-92. [PMID: 16047547 DOI: 10.1007/s10571-005-3065-8] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.0] [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: 01/19/2023]
Abstract
The present review paper describes results indicating the influence of nitric oxide (NO) on motor control. Our last studies showed that systemic injections of low doses of inhibitors of NO synthase (NOS), the enzyme responsible for NO formation, induce anxiolytic effects in the elevated plus maze whereas higher doses decrease maze exploration. Also, NOS inhibitors decrease locomotion and rearing in an open field arena. These results may involve motor effects of this compounds, since inhibitors of NOS, NG-nitro-L-arginine (L-NOARG), N(G)-nitro-L-arginine methylester (L-NAME), N(G)-monomethyl-L-arginine (L-NMMA), and 7-Nitroindazole (7-NIO), induced catalepsy in mice. This effect was also found in rats after systemic, intracebroventricular or intrastriatal administration. Acute administration of L-NOARG has an additive cataleptic effect with haloperidol, a dopamine D2 antagonist. The catalepsy is also potentiated by WAY 100135 (5-HT1a receptor antagonist), ketanserin (5HT2a and alfal adrenergic receptor antagonist), and ritanserin (5-HT2a and 5HT2c receptor antagonist). Atropine sulfate and biperiden, antimuscarinic drugs, block L-NOARG-induced catalepsy in mice. L-NOARG subchronic administration in mice induces rapid tolerance (3 days) to its cataleptic effects. It also produces cross-tolerance to haloperidol-induced catalepsy. After subchronic L-NOARG treatment there is an increase in the density NADPH-d positive neurons in the dorsal part of nucleus caudate-putamen, nucleus accumbens, and tegmental pedunculupontinus nucleus. In contrast, this treatment decreases NADPH-d neuronal number in the substantia nigra compacta. Considering these results we suggest that (i) NO may modulate motor behavior, probably by interfering with dopaminergic, serotonergic, and cholinergic neurotransmission in the striatum; (ii) Subchronic NO synthesis inhibition induces plastic changes in NO-producing neurons in brain areas related to motor control and causes cross-tolerance to the cataleptic effect of haloperidol, raising the possibility that such treatments could decrease motor side effects associated with antipsychotic medications. Finally, recent studies using experimental Parkinson's disease models suggest an interaction between NO system and neurodegenerative processes in the nigrostriatal pathway. It provides evidence of a protective role of NO. Together, our results indicate that NO may be a key participant on physiological and pathophysiological processes in the nigrostriatal system.
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Affiliation(s)
- E A Del Bel
- Department MEF Physiology, School of Odontology, Medical School, Campus USP, Ribeirao Preto, SP, Brazil.
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Gomes MZ, Del Bel EA. Effects of electrolytic and 6-hydroxydopamine lesions of rat nigrostriatal pathway on nitric oxide synthase and nicotinamide adenine dinucleotide phosphate diaphorase. Brain Res Bull 2004; 62:107-15. [PMID: 14638384 DOI: 10.1016/j.brainresbull.2003.08.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [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: 10/26/2022]
Abstract
The aim of the present study was to assess degenerative changes in the nitric oxide (NO) system of basal ganglia in animals with experimentally induced Parkinson's disease. In one procedure, rats were stereotaxically injected with 6-hydroxydopamine (6-OHDA) in the right medial forebrain bundle; in a second procedure, electrodes were implanted in the right substantia nigra pars compacta (SNc). After 15 and 30 days animals were tested for rotational asymmetry induced by apomorphine. Apomorphine induced rotation in lesioned animals, towards the ipsilateral side after electrolytic lesion and towards contralateral side in 6-OHDA animals. Structural deficits in basal ganglia were quantified by nicotinamide adenine dinucleotide phosphate diaphorase (NADPH-d) histochemistry and by nitric oxide synthase (NOS) immunoreactivity. 6-OHDA and electrolytic lesions induced a significant decrease in the number of NADPH-d/NOS positive cells in the lesion ipsilateral to SNc, in contrast with cell number increase in the ipsilateral dorsal striatum. By contrast, 6-OHDA-treated animals showed a decrease in the number of NOS immunoreactive cells in the contralateral nucleus accumbens. We conclude that populations of NO-synthesizing neurons are differentially regulated in Parkinson's disease induced by different experimental procedures.
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Affiliation(s)
- M Z Gomes
- Department of Physiology, Medical School, Campus USP, Ribeirão Preto, Brazil
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