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Decio P, Miotelo L, Pereira FDC, Roat TC, Marin-Morales MA, Malaspina O. Enzymatic responses in the head and midgut of Africanized Apis mellifera contaminated with a sublethal concentration of thiamethoxam. Ecotoxicol Environ Saf 2021; 223:112581. [PMID: 34352576 DOI: 10.1016/j.ecoenv.2021.112581] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 04/15/2021] [Revised: 07/08/2021] [Accepted: 07/28/2021] [Indexed: 06/13/2023]
Abstract
The increasing use of insecticides, promoted by the intensification of agriculture, has raised concerns about their influence on the decline of bee colonies, which play a fundamental role in pollination. Thus, it is fundamental to elucidate the effects of insecticides on bees. This study investigated the damage caused by a sublethal concentration of thiamethoxam - TMX (0.0227 ng/μL of feed) in the head and midgut of Africanized Apis mellifera, by analyzing the enzymatic biomarkers, oxidative stress, and occurrence of lipid peroxidation. The data showed that the insecticide increased acetylcholinesterase activity (AChE) and glutathione-S-transferase (GST), whereas carboxylesterase (CaE3) activity decreased in the heads. Our results indicate that the antioxidant enzymes were less active in the head because only glutathione peroxidase (GPX) showed alterations. In the midgut, there were no alkaline phosphatase (ALP) or superoxide dismutase (SOD) responses and a decrease in the activity of CaE was observed. Otherwise, there was an increase in GPX, and the TBARS (thiobarbituric acid reactive substances) assay also showed differences in the midgut. The TBARS (thiobarbituric acid reactive substances) assay also showed differences in the midgut. The results showed enzymes such as CaE3, GST, AChE, ALP, SOD, and GPX, as well as the TBARS assay, are useful biomarkers on bees. They may be used in combination as a promising tool for characterizing bee exposure to insecticides.
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Affiliation(s)
- Pâmela Decio
- São Paulo State University (Unesp), Institute of Biosciences, Av. 24A, 1515. CEP: 13506-900, Rio Claro, São Paulo, Brazil.
| | - Lucas Miotelo
- São Paulo State University (Unesp), Institute of Biosciences, Av. 24A, 1515. CEP: 13506-900, Rio Claro, São Paulo, Brazil
| | - Franco Dani Campos Pereira
- São Paulo State University (Unesp), Institute of Biosciences, Av. 24A, 1515. CEP: 13506-900, Rio Claro, São Paulo, Brazil; NUPEFEN - Núcleo de pesquisas em Educação Física, Estética e Nutrição, Claretiano University Center, Avenida Santo Antônio Maria Claret, 1724. CEP: 13503-257, Rio Claro, São Paulo, Brazil
| | - Thaisa Cristina Roat
- São Paulo State University (Unesp), Institute of Biosciences, Av. 24A, 1515. CEP: 13506-900, Rio Claro, São Paulo, Brazil
| | - Maria Aparecida Marin-Morales
- São Paulo State University (Unesp), Institute of Biosciences, Av. 24A, 1515. CEP: 13506-900, Rio Claro, São Paulo, Brazil
| | - Osmar Malaspina
- São Paulo State University (Unesp), Institute of Biosciences, Av. 24A, 1515. CEP: 13506-900, Rio Claro, São Paulo, Brazil
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da Silva CM, Caetano FH, Pereira FDC, Morales MAM, Sakane KK, Moraes KCM. Cellular and molecular effects of Baccharis dracunculifolia D.C. and Plectranthus barbatus Andrews medicinal plant extracts on retinoid metabolism in the human hepatic stellate cell LX-2. BMC Complement Altern Med 2019; 19:222. [PMID: 31438947 PMCID: PMC6704496 DOI: 10.1186/s12906-019-2591-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 07/02/2019] [Indexed: 12/14/2022]
Abstract
Background Chronic hepatic diseases are serious problems worldwide, which may lead to the development of fibrosis and eventually cirrhosis. Despite the significant number of people affected by hepatic fibrosis, no effective treatment is available. In the liver, hepatic stellate cells are the major fibrogenic cell type that play a relevant function in chronic liver diseases. Thus, the characterization of components that control the fibrogenesis in the hepatic stellate cells is relevant in supporting the development of innovative therapies to treat and/or control liver fibrosis. The present study investigated the effects of Baccharis dracunculifolia D.C. and Plectranthus barbatus Andrews medicinal plant extracts in LX-2 transdifferentiation. Methods LX-2 is a human immortalized hepatic stellate cell that can transdifferentiate in vitro from a quiescent-like phenotype to a more proliferative and activated behavior, and it provides a useful platform to assess antifibrotic drugs. Then, the antifibrotic effects of hydroalcoholic extracts of Baccharis dracunculifolia and Plectranthus barbatus medicinal plants on LX-2 were evaluated. Results The results in our cellular analyses, under the investigated concentrations of the plant extracts, indicate no deleterious effects on LX-2 metabolism, such as toxicity, genotoxicity, or apoptosis. Moreover, the extracts induced changes in actin filament distribution of activated LX-2, despite not affecting the cellular markers of transdifferentiation. Consistent effects in cellular retinoid metabolism were observed, supporting the presumed activity of the plant extracts in hepatic lipids metabolism, which corroborated the traditional knowledge about their uses for liver dysfunction. Conclusion The combined results suggested a potential hepatoprotective effect of the investigated plant extracts reinforcing their safe use as coadjuvants in treating imbalanced liver lipid metabolism.
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Perez-Riverol A, Campos Pereira FD, Musacchio Lasa A, Romani Fernandes LG, Santos-Pinto JRAD, Justo-Jacomini DL, Oliveira de Azevedo G, Bazon ML, Palma MS, Zollner RDL, Brochetto-Braga MR. Molecular cloning, expression and IgE-immunoreactivity of phospholipase A1, a major allergen from Polybia paulista (Hymenoptera: Vespidae) venom. Toxicon 2016; 124:44-52. [PMID: 27826019 DOI: 10.1016/j.toxicon.2016.11.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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: 06/20/2016] [Revised: 09/05/2016] [Accepted: 11/03/2016] [Indexed: 10/20/2022]
Abstract
Polybia paulista (Hymenoptera: Vespidae) is a clinically relevant social wasp that frequently causes stinging accidents in southeast Brazil. To date, diagnosis and specific immunotherapy (SIT) of allergy are based on the use of crude venom extracts. Production of recombinant forms of major allergens from P. paulista venom will improve diagnosis and SIT of allergic patients by reducing the incidence of cross-reactivity and non-specific sensitization. Here, we describe the molecular cloning, heterologous expression, purification and IgE-mediated immunodetection of phospholipase A1 (Poly p 1), a major allergen from P. paulista venom. The cDNA of Poly p 1 was extracted from venom glands and then cloned, and further expression of the recombinant allergen (rPoly p 1) was achieved in Escherichia coli BL21 (DE3) cells. Purification of rPoly p 1 was performed using immobilized Ni2+ metal affinity chromatography. Also, a single-step chromatographic method allowed the purification of native Poly p 1 (nPoly p 1) from the wasp's venom glands. We used western blotting to evaluate IgE-reactivity of the sera from 10 P. paulista venom-allergic patients to rPoly p 1 and nPoly p 1. High levels of insoluble rPoly p 1 were obtained during heterologous expression. After solubilization of inclusion bodies and purification of the recombinant protein, a unique band of ∼34 kDa was detected in SDS-PAGE analysis. Allergen-specific IgE (sIgE) from allergic patients' sera recognized rPoly p 1, nPoly p 1 and crude venom extract to a similar extent. Our results showed that rPoly p 1 could be used for development of component-resolved diagnosis (CRD) and molecular-defined SIT of P. paulista venom allergy.
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Affiliation(s)
- Amilcar Perez-Riverol
- Laboratório de Biologia Molecular de Artrópodes-LBMA-IBRC-UNESP (Univ Estadual Paulista), Av. 24-A, nº 1515, CEP 13506-900, Bela Vista, Rio Claro, SP, Brazil.
| | - Franco Dani Campos Pereira
- Laboratório de Biologia Molecular de Artrópodes-LBMA-IBRC-UNESP (Univ Estadual Paulista), Av. 24-A, nº 1515, CEP 13506-900, Bela Vista, Rio Claro, SP, Brazil; Laboratório de Mutagênese Ambiental, Avenida 24-A, nº 1515, Bela Vista, Rio Claro, São Paulo, CEP 13506-900, Brazil.
| | - Alexis Musacchio Lasa
- Center for Genetic Engineering and Biotechnology, Biomedical Research Division, System Biology Department, Ave. 31, e/ 158 and 190, P.O. Box 6162, Cubanacan, Playa, Havana, 10600, Cuba.
| | - Luis Gustavo Romani Fernandes
- Laboratório de Imunologia Translacional, Faculdade de Ciências Médicas, FCM, Universidade Estadual de Campinas-UNICAMP, Rua Vital Brasil, nº 300, CEP 13083-887, Cidade Universitária "Zeferino Vaz", Campinas, SP, Brazil.
| | | | - Débora Lais Justo-Jacomini
- Laboratório de Biologia Molecular de Artrópodes-LBMA-IBRC-UNESP (Univ Estadual Paulista), Av. 24-A, nº 1515, CEP 13506-900, Bela Vista, Rio Claro, SP, Brazil.
| | - Gabriel Oliveira de Azevedo
- Instituto de Pesquisa em Bioenergia (IPBEN) (Univ Estadual Paulista), Av. 24-A, nº1515, CEP 13506-900, Bela Vista, Rio Claro, SP, Brazil.
| | - Murilo Luiz Bazon
- Laboratório de Biologia Molecular de Artrópodes-LBMA-IBRC-UNESP (Univ Estadual Paulista), Av. 24-A, nº 1515, CEP 13506-900, Bela Vista, Rio Claro, SP, Brazil.
| | - Mario Sergio Palma
- Centro de Estudos de Insetos Sociais-CEIS-IBRC-UNESP (Univ Estadual Paulista), Av. 24-A, nº 1515, CEP 13506-900, Bela Vista, Rio Claro, SP, Brazil.
| | - Ricardo de Lima Zollner
- Laboratório de Imunologia Translacional, Faculdade de Ciências Médicas, FCM, Universidade Estadual de Campinas-UNICAMP, Rua Vital Brasil, nº 300, CEP 13083-887, Cidade Universitária "Zeferino Vaz", Campinas, SP, Brazil.
| | - Márcia Regina Brochetto-Braga
- Laboratório de Biologia Molecular de Artrópodes-LBMA-IBRC-UNESP (Univ Estadual Paulista), Av. 24-A, nº 1515, CEP 13506-900, Bela Vista, Rio Claro, SP, Brazil; Centro de Estudos de Venenos e Animais Peçonhentos-CEVAP (Univ Estadual Paulista), Rua José Barbosa de Barros, 1780, Fazenda Experimental Lageado, Botucatu 18610-307, SP, Brazil.
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E Nico ETM, de Oliveira PR, de Souza LP, Pereira FDC, Delbin MA, Zanesco A, Camargo-Mathias MI. The action of aminoguanidine on the liver of trained diabetic rats. J Diabetes Metab Disord 2013; 12:40. [PMID: 23837632 PMCID: PMC7983740 DOI: 10.1186/2251-6581-12-40] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 12/04/2012] [Accepted: 07/06/2013] [Indexed: 01/11/2023]
Abstract
Background This study evaluated the effect of aminoguanidine on liver of diabetic rats subject to physical exercises using histological and histochemical techniques. Methods The rats used in this study were divided into five groups: sedentary control, sedentary diabetic, trained diabetic, sedentary diabetic and treated with aminoguanidine, trained diabetic and treated with aminoguanidine. Results The results showed no effect of aminoguanidine on the liver tissue, although there was improvement with exercise training showing cytological, morpho-histological and histochemical alterations in liver cells of animals from groups trained diabetic and/or treated diabetic compared to those individuals in the sedentary control and sedentary diabetic. These changes included: hepatocytes hypertrophy, presence and distribution of polysaccharides in the hepatocytes cytoplasm and, especially, congestion of the liver blood vessels. Conclusion Our results suggest that aminoguanidine is not hepatotoxic, when used at dosage of 1 g/L for the treatment of diabetes complications, and confirmed that the practice of moderate physical exercise assuaged the damage caused by diabetes without the use of insulin. Electronic supplementary material The online version of this article (doi:10.1186/2251-6581-12-40) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | - Leonardo Peres de Souza
- UNESP-University Estadual Paulista, Avenida 24 A, 1515, 13506-900, Rio Claro, SP CP 199, Brazil
| | | | - Maria Andréia Delbin
- UNESP-University Estadual Paulista, Avenida 24 A, 1515, 13506-900, Rio Claro, SP CP 199, Brazil
| | - Angelina Zanesco
- UNESP-University Estadual Paulista, Avenida 24 A, 1515, 13506-900, Rio Claro, SP CP 199, Brazil
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Justo Jacomini DL, Campos Pereira FD, Aparecido dos Santos Pinto JR, dos Santos LD, da Silva Neto AJ, Giratto DT, Palma MS, de Lima Zollner R, Brochetto Braga MR. Hyaluronidase from the venom of the social wasp Polybia paulista (Hymenoptera, Vespidae): Cloning, structural modeling, purification, and immunological analysis. Toxicon 2013; 64:70-80. [DOI: 10.1016/j.toxicon.2012.12.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 12/18/2012] [Accepted: 12/21/2012] [Indexed: 10/27/2022]
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