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Dos Santos Nunes RG, de Amorim LC, Bezerra IC, da Silva AJ, Dos Santos CAL, Gubert P, de Menezesa IRA, Duarte AE, Barros LM, da Silveira Andrade-da-Costa BL, Dos Santos MV, Dos Santos Correia MT, da Rosa MM. Syagrus coronata fixed oil prevents rotenone-induced movement disorders and oxidative stress in Drosophila melanogaster. J Toxicol Environ Health A 2024; 87:497-515. [PMID: 38619158 DOI: 10.1080/15287394.2024.2338431] [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] [Indexed: 04/16/2024]
Abstract
One prominent aspect of Parkinson's disease (PD) is the presence of elevated levels of free radicals, including reactive oxygen species (ROS). Syagrus coronata (S. coronata), a palm tree, exhibits antioxidant activity attributed to its phytochemical composition, containing fatty acids, polyphenols, and flavonoids. The aim of this investigation was to examine the potential neuroprotective effects of S. coronata fixed oil against rotenone-induced toxicity using Drosophila melanogaster. Young Drosophila specimens (3-4 d old) were exposed to a diet supplemented with rotenone (50 µM) for 7 d with and without the inclusion of S. coronata fixed oil (0.2 mg/g diet). Data demonstrated that rotenone exposure resulted in significant locomotor impairment and increased mortality rates in flies. Further, rotenone administration reduced total thiol levels but elevated lipid peroxidation, iron (Fe) levels, and nitric oxide (NO) levels while decreasing the reduced capacity of mitochondria. Concomitant administration of S. coronata exhibited a protective effect against rotenone, as evidenced by a return to control levels of Fe, NO, and total thiols, lowered lipid peroxidation levels, reversed locomotor impairment, and enhanced % cell viability. Molecular docking of the oil lipidic components with antioxidant enzymes showed strong binding affinity to superoxide dismutase (SOD) and glutathione peroxidase (GPX1) enzymes. Overall, treatment with S. coronata fixed oil was found to prevent rotenone-induced movement disorders and oxidative stress in Drosophila melanogaster.
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Affiliation(s)
| | | | | | - Artur José da Silva
- Keizo Asami Institute, iLIKA, Federal University of Pernambuco, Recife, Brazil
| | | | - Priscila Gubert
- Keizo Asami Institute, iLIKA, Federal University of Pernambuco, Recife, Brazil
| | | | - Antonia Eliene Duarte
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Bahia, Brazil
| | - Luiz Marivando Barros
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Bahia, Brazil
| | | | | | | | - Michelle Melgarejo da Rosa
- Department of Biochemistry, Federal University of Pernambuco, Recife, Brazil
- Laboratory of Immunomodulation and New Therapeutic Approaches (LINAT), Suely-Galdino Therapeutic Innovation Research Center (NUPIT-SG), Federal University of Pernambuco (UFPE), Recife, PE, Brazil
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Barros YVR, de Andrade AO, da Silva LPD, Pedroza LAL, Bezerra IC, Cavalcanti IDL, Nogueira MCDBL, Mousinho KC, Antoniolli AR, Alves LC, Lima Filho JLD, Moura AV, Rosini Silva ÁA, Porcari ADM, Gubert P. Bee Venom Toxic Effect on MDA-MB-231 Breast Cancer Cells and Caenorhabditis Elegans. Anticancer Agents Med Chem 2024; 24:ACAMC-EPUB-139209. [PMID: 38500290 DOI: 10.2174/0118715206291634240312062957] [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: 12/20/2023] [Revised: 02/15/2024] [Accepted: 02/22/2024] [Indexed: 03/20/2024]
Abstract
INTRODUCTION Bee venom has therapeutics and pharmacological properties. Further toxicological studies on animal models are necessary due to the severe allergic reactions caused by this product. METHOD Here, Caenorhabditis elegans was used as an in vivo toxicity model, while breast cancer cells were used to evaluate the pharmacological benefits. The bee venom utilized in this research was collected from Apis mellifera species found in Northeast Brazil. The cytotoxicity caused by bee venom was measured by MTT assay on MDA-MB-231 and J774 A.1 cells during 24 - 72 hours of exposure. C. elegans at the L4 larval stage were exposed for three hours to M9 buffer or bee venom. Survival, behavioral parameters, reproduction, DAF-16 transcription factor translocation, the expression of superoxide dismutase (SOD), and metabolomics were analyzed. Bee venom suppressed the growth of MDA-MB-231 cancer cells and exhibited cytotoxic effects on macrophages. Also, decreased C. elegans survival impacted its behaviors by decreasing C. elegans feeding behavior, movement, and reproduction. RESULTS Bee venom did not increase the expression of SOD-3, but it enhanced DAF-16 translocation from the cytoplasm to the nucleus. C. elegans metabolites differed after bee venom exposure, primarily related to aminoacyl- tRNA biosynthesis, glycine, serine and threonine metabolism, and sphingolipid and purine metabolic pathways. Our findings indicate that exposure to bee venom resulted in harmful effects on the cells and animal models examined. CONCLUSION Thus, due to its potential toxic effect and induction of allergic reactions, using bee venom as a therapeutic approach has been limited. The development of controlled-release drug strategies to improve this natural product's efficacy and safety should be intensified.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Luiz Carlos Alves
- Federal University of Pernambuco Keizo Asami Institute Recife Brazil
| | | | - Alexandre Varão Moura
- Universidade São Francisco Health Sciences Postgraduate Program Bragança Paulista Brazil
| | | | | | - Priscila Gubert
- Federal University of Pernambuco Keizo Asami Institute Recife Brazil
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da Silva LPD, da Cruz Guedes E, Fernandes ICO, Pedroza LAL, da Silva Pereira GJ, Gubert P. Exploring Caenorhabditis elegans as Parkinson's Disease Model: Neurotoxins and Genetic Implications. Neurotox Res 2024; 42:11. [PMID: 38319410 DOI: 10.1007/s12640-024-00686-3] [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: 09/06/2023] [Revised: 12/19/2023] [Accepted: 01/05/2024] [Indexed: 02/07/2024]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease in the world, the first being Alzheimer's disease. Patients with PD have a loss of dopaminergic neurons in the substantia nigra of the basal ganglia, which controls voluntary movements, causing a motor impairment as a result of dopaminergic signaling impairment. Studies have shown that mutations in several genes, such as SNCA, PARK2, PINK1, DJ-1, ATP13A2, and LRRK2, and the exposure to neurotoxic agents can potentially increase the chances of PD development. The nematode Caenorhabditis elegans (C. elegans) plays an important role in studying the risk factors, such as genetic factors, aging, exposure to chemicals, disease progression, and drug treatments for PD. C. elegans has a conserved neurotransmission system during evolution; it produces dopamine, through the eight dopaminergic neurons; it can be used to study the effect of neurotoxins and also has strains that express human α-synuclein. Furthermore, the human PD-related genes, LRK-1, PINK-1, PDR-1, DJR-1.1, and CATP-6, are present and functional in this model. Therefore, this review focuses on highlighting and discussing the use of C. elegans an in vivo model in PD-related studies. Here, we identified that nematodes exposed to the neurotoxins, such as 6-OHDA, MPTP, paraquat, and rotenone, had a progressive loss of dopaminergic neurons, dopamine deficits, and decreased survival rate. Several studies have reported that expression of human LRRK2 (G2019S) caused neurodegeneration and pink-1, pdr-1, and djr-1.1 deletion caused several effects PD-related in C. elegans, including mitochondrial dysfunctions. Of note, the deletion of catp-6 in nematodes caused behavioral dysfunction, mitochondrial damage, and reduced survival. In addition, nematodes expressing α-synuclein had neurodegeneration and dopamine-dependent deficits. Therefore, C. elegans can be considered an accurate animal model of PD that can be used to elucidate to assess the underlying mechanisms implicated in PD to find novel therapeutic targets.
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Affiliation(s)
- Larissa Pereira Dantas da Silva
- Keizo Asami Institute, iLIKA, Universidade Federal de Pernambuco, Moraes Rego Avenue, 1235, Recife, Pernambuco, 50670-901, Brazil
| | - Erika da Cruz Guedes
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Isabel Cristina Oliveira Fernandes
- Keizo Asami Institute, iLIKA, Universidade Federal de Pernambuco, Moraes Rego Avenue, 1235, Recife, Pernambuco, 50670-901, Brazil
- Postgraduate Program in Biological Science, Universidade Federal de Pernambuco, Pernambuco, Recife, Brazil
| | - Lucas Aleixo Leal Pedroza
- Keizo Asami Institute, iLIKA, Universidade Federal de Pernambuco, Moraes Rego Avenue, 1235, Recife, Pernambuco, 50670-901, Brazil
| | | | - Priscila Gubert
- Keizo Asami Institute, iLIKA, Universidade Federal de Pernambuco, Moraes Rego Avenue, 1235, Recife, Pernambuco, 50670-901, Brazil.
- Postgraduate Program in Biological Science, Universidade Federal de Pernambuco, Pernambuco, Recife, Brazil.
- Postgraduate Program in Pure and Applied Chemistry, Universidade Federal do Oeste da Bahia, Bahia, Brazil.
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Nunes de Andrade Medeiros SR, Conrado Bezerra I, José da Silva A, Leal Pedroza LA, Gomes Martins RM, Moniz AMH, Gonçalves Reis de Melo AC, Souza Paiva W, Gubert P, Alves de Melo Filho A. In Vitro and In Silico Antioxidant Activity and Molecular Characterization of Bauhinia ungulata L. Essential Oil. Chem Biodivers 2024; 21:e202301536. [PMID: 38090811 DOI: 10.1002/cbdv.202301536] [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: 09/29/2023] [Accepted: 12/10/2023] [Indexed: 01/23/2024]
Abstract
Bauhinia ungulata is an antioxidant medicinal plant that has been manipuled in Brazil to lower glycemic index as well is for alternative treatment for diabetes. Therefore, the present hearch has aimed to investigates the antioxidant effects of the essential oil of Bauhinia ungulata L. (EOBU) collected in Amazon region better specified in Boa Vista, Roraima, Brazil, located in the Amazon region. Gas chromatography had been used to characterize the components, and antioxidant assays such as DPPH, TAC, reducing power, Fe2+ chelation, and total phenols had also been performed. The major constituents had molecularly anchored with the human catalase (CAT) enzyme, and maltol has showed as a positive control. Among the 25 revealed components, the main ones have been α-bisabolol (27.2 %), β-Caryophyllene (12.5 %) and Epi-γ-eudesmol (13.6 %). The EOBU has comproved a TAC value of 618.79 mg of ascorbic acid equivalent, free radical scavenging capacity (DPPH) around 53.7 % and 65.27 %, Fe2+ chelation capacity of 161±6 and 126.7±39.6, for 0.1 mg.mL-1 and 0.5 mg.mL-1 , respectively. The power around the EOBU has appeared percentages equals to 28.66 %, 44.6 %, and 77.03 % in the concentrations tested. As well as, 96.5 % of total phenols. The compounds α-bisabolol (-5.7±0.4 Kcal.mol-1 ) and β-caryophyllene (-6.1±0.5 Kcal.mol-1 ) have showed good interaction with CAT compared to Maltol (-4.4±0.4 Kcal.mol-1 ). The present work has demonstrated that EOBU functions as a potent antioxidant, capable of scavenging free radicals and reducing oxidative stress damage.
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Affiliation(s)
- Sandra Regina Nunes de Andrade Medeiros
- Biodiversity and Biotechnology of the Legal Amazon, PPG Bionorte, Federal University of Roraima (UFRR), Boa Vista, RR, Brazil
- Keizo Asami Institute, Federal University of Pernambuco (UFPE), Recife, PE, Brazil
| | | | - Artur José da Silva
- Keizo Asami Institute, Federal University of Pernambuco (UFPE), Recife, PE, Brazil
| | | | - Regildo Max Gomes Martins
- Biotechnology Multi-institutional Program, PPGBIOTEC, Federal University of Amazonas (UFAM), Manaus, Amazonas, Brazil
| | - Ana Maria Henrique Moniz
- Biodiversity and Biotechnology of the Legal Amazon, PPG Bionorte, Federal University of Roraima (UFRR), Boa Vista, RR, Brazil
| | - Ana Cristina Gonçalves Reis de Melo
- Environmental Chemistry Laboratory, Center for Research and Graduate Studies in Science and Technology, Federal University of Roraima (UFRR), Boa Vista, RR, Brazil
| | - Weslley Souza Paiva
- Post-Graduate Program in Biochemistry and Molecular Biology, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Priscila Gubert
- Keizo Asami Institute, Federal University of Pernambuco (UFPE), Recife, PE, Brazil
- Post-Graduate Program in Biology Applied in Health, Federal University of Pernambuco, Recife, PE, Brazil
| | - Antonio Alves de Melo Filho
- Biodiversity and Biotechnology of the Legal Amazon, PPG Bionorte, Federal University of Roraima (UFRR), Boa Vista, RR, Brazil
- Environmental Chemistry Laboratory, Center for Research and Graduate Studies in Science and Technology, Federal University of Roraima (UFRR), Boa Vista, RR, Brazil
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Gubert P, Gubert G, de Oliveira RC, Fernandes ICO, Bezerra IC, de Ramos B, de Lima MF, Rodrigues DT, da Cruz AFN, Pereira EC, Ávila DS, Mosca DH. Caenorhabditis elegans as a Prediction Platform for Nanotechnology-Based Strategies: Insights on Analytical Challenges. Toxics 2023; 11:239. [PMID: 36977004 PMCID: PMC10059662 DOI: 10.3390/toxics11030239] [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: 01/21/2023] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Nanotechnology-based strategies have played a pivotal role in innovative products in different technological fields, including medicine, agriculture, and engineering. The redesign of the nanometric scale has improved drug targeting and delivery, diagnosis, water treatment, and analytical methods. Although efficiency brings benefits, toxicity in organisms and the environment is a concern, particularly in light of global climate change and plastic disposal in the environment. Therefore, to measure such effects, alternative models enable the assessment of impacts on both functional properties and toxicity. Caenorhabditis elegans is a nematode model that poses valuable advantages such as transparency, sensibility in responding to exogenous compounds, fast response to perturbations besides the possibility to replicate human disease through transgenics. Herein, we discuss the applications of C. elegans to nanomaterial safety and efficacy evaluations from one health perspective. We also highlight the directions for developing appropriate techniques to safely adopt magnetic and organic nanoparticles, and carbon nanosystems. A description was given of the specifics of targeting and treatment, especially for health purposes. Finally, we discuss C. elegans potential for studying the impacts caused by nanopesticides and nanoplastics as emerging contaminants, pointing out gaps in environmental studies related to toxicity, analytical methods, and future directions.
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Affiliation(s)
- Priscila Gubert
- Keizo Asami Institute, iLIKA, Federal University of Pernambuco, Recife 50670-901, Brazil
- Graduate Program in Biology Applied to Health, PPGBAS, Federal University of Pernambuco, Recife 50670-901, Brazil
- Graduate Program in Pure and Applied Chemistry, POSQUIPA, Federal University of Western of Bahia, Bahia 47808-021, Brazil
| | - Greici Gubert
- Postdoctoral Program in Chemistry, Federal University of São Carlos, São Carlos 13565-905, Brazil
| | | | - Isabel Cristina Oliveira Fernandes
- Keizo Asami Institute, iLIKA, Federal University of Pernambuco, Recife 50670-901, Brazil
- Graduate Program in Biology Applied to Health, PPGBAS, Federal University of Pernambuco, Recife 50670-901, Brazil
| | | | - Bruna de Ramos
- Oceanography Department, Federal University of Pernambuco, Recife 50670-901, Brazil
| | - Milena Ferreira de Lima
- Keizo Asami Institute, iLIKA, Federal University of Pernambuco, Recife 50670-901, Brazil
- Graduate Program in Biology Applied to Health, PPGBAS, Federal University of Pernambuco, Recife 50670-901, Brazil
| | - Daniela Teixeira Rodrigues
- Graduate Program in Biological Sciences, Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria 97105-900, Brazil
| | | | - Ernesto Chaves Pereira
- Postdoctoral Program in Chemistry, Federal University of São Carlos, São Carlos 13565-905, Brazil
| | - Daiana Silva Ávila
- Graduate Program in Biological Sciences, Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria 97105-900, Brazil
- Graduate Program in Biochemistry, Federal University of Pampa (UNIPAMPA), Uruguaiana 97501-970, Brazil
| | - Dante Homero Mosca
- Postdoctoral Program in Physics, Federal University of Paraná, Curitiba 80060-000, Brazil
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Martins AC, Gubert P, Li J, Ke T, Nicolai MM, Moura AV, Bornhorst J, Bowman AB, Aschner M. Caenorhabditis elegans as a Model to Study Manganese-Induced Neurotoxicity. Biomolecules 2022; 12:biom12101396. [PMID: 36291605 PMCID: PMC9599542 DOI: 10.3390/biom12101396] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/25/2022] [Accepted: 09/25/2022] [Indexed: 11/16/2022] Open
Abstract
Caenorhabditis elegans (C. elegans) is a nematode present worldwide. The worm shows homology to mammalian systems and expresses approximately 40% of human disease-related genes. Since Dr. Sydney Brenner first proposed C. elegans as an advantageous experimental worm-model system for genetic approaches, increasing numbers of studies using C. elegans as a tool to investigate topics in several fields of biochemistry, neuroscience, pharmacology, and toxicology have been performed. In this regard, C. elegans has been used to characterize the molecular mechanisms and affected pathways caused by metals that lead to neurotoxicity, as well as the pathophysiological interrelationship between metal exposure and ongoing neurodegenerative disorders. Several toxic metals, such as lead, cadmium, and mercury, are recognized as important environmental contaminants, and their exposure is associated with toxic effects on the human body. Essential elements that are required to maintain cellular homeostasis and normal physiological functions may also be toxic when accumulated at higher concentrations. For instance, manganese (Mn) is a trace essential element that participates in numerous biological processes, such as enzymatic activities, energy metabolism, and maintenance of cell functions. However, Mn overexposure is associated with behavioral changes in C. elegans, which are consistent with the dopaminergic system being the primary target of Mn neurotoxicity. Caenorhabditis elegans has been shown to be an important tool that allows for studies on neuron morphology using fluorescent transgenic worms. Moreover, behavioral tests may be conducted using worms, and neurotransmitter determination and related gene expression are likely to change after Mn exposure. Likewise, mutant worms may be used to study molecular mechanisms in Mn toxicity, as well as the expression of proteins responsible for the biosynthesis, transport, storage, and uptake of dopamine. Furthermore, this review highlights some advantages and limitations of using the experimental model of C. elegans and provides guidance for potential future applications of this model in studies directed toward assessing for Mn neurotoxicity and related mechanisms.
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Affiliation(s)
- Airton C. Martins
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Priscila Gubert
- Department of Biochemistry, Laboratório de Imunopatologia Keizo Asami, LIKA, Federal University of Pernambuco, Recife 50670901, Brazil
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Barreiras 47810059, Brazil
| | - Jung Li
- Des Moines University College of Osteopathic Medicine, Des Moines, IA 50312, USA
| | - Tao Ke
- Stiles-Nicholson Brain Institute, Florida Atlantic University, Jupiter, FL 33458, USA
| | - Merle M. Nicolai
- Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, 42119 Wuppertal, Germany
- TraceAge–DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (FOR 2558), Berlin-Potsdam-Jena-Wuppertal, 14558 Nuthetal, Germany
| | - Alexandre Varão Moura
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Barreiras 47810059, Brazil
- MS4Life Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista, São Paulo 12916900, Brazil
| | - Julia Bornhorst
- Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, 42119 Wuppertal, Germany
- TraceAge–DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (FOR 2558), Berlin-Potsdam-Jena-Wuppertal, 14558 Nuthetal, Germany
| | - Aaron B. Bowman
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Correspondence:
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Gubert G, Gubert P, Sandes JM, Bornhorst J, Alves LC, Quines CB, Mosca DH. The nanotoxicity assessment of cube-like iron nitride magnetic nanoparticles at the organismal level of nematode Caenorhabditis elegans. Nanotoxicology 2022; 16:472-483. [PMID: 35848961 DOI: 10.1080/17435390.2022.2099768] [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] [Indexed: 10/17/2022]
Abstract
Magnetic nanoparticles (NPs) are suitable candidates for various medical and biological applications, despite some concerns that they may have negative impacts on human health. In this study, the toxicity effects of magnetic NPs consisting of α"-Fe16N2 captured and bioaccumulated by the nematode Caenorhabditis elegans (C. elegans) in the early larval stage are evaluated. The choice of α"-Fe16N2 NPs is based on their good structural stability when stored in saline solution and high magnetic performance. The uptake and bioaccumulation of α"-Fe16N2 NPs in intestinal cells of C. elegans was evidenced by transmission electron microscopy. After exposure to NPs up to 40 mg mL-1, C. elegans larval development, survival, feeding behavior, defecation cycles, movement and reproduction were monitored. C. elegans survival and other monitored behavioral evolutions do not show significant changes, except for a slight statistical reduction in the reproductive profile. Therefore, the present results are promising and very encouraging for investigations of applications of α"-Fe16N2 NPs in the biomedical area.
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Affiliation(s)
- Greici Gubert
- Departamento de Física, Universidade Federal do Paraná, Curitiba, Brazil.,Instituto Federal Catarinense, Rio do Sul, Brazil
| | - Priscila Gubert
- Graduate Program in Pure and Applied Chemistry, POSQUIPA. Federal University of Western Bahia, Barreiras, Brazil.,Immunopathology Laboratory Keizo Asami, LIKA. Federal University of Pernambuco, Recife, Brazil
| | - Jana Messias Sandes
- Immunopathology Laboratory Keizo Asami, LIKA. Federal University of Pernambuco, Recife, Brazil
| | - Julia Bornhorst
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany.,Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Wuppertal, Germany
| | - Luiz Carlos Alves
- Oswaldo Cruz Foundation, Aggeu Magalhães Institute, Department of Virology and Experimental Therapy, Recife, Brazil
| | - Caroline Brandão Quines
- Postgraduating Program in Biochemistry, Federal University of Pampa (UNIPAMPA), Uruguaiana, Brazil
| | - Dante Homero Mosca
- Departamento de Física, Universidade Federal do Paraná, Curitiba, Brazil
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Varão Moura A, Da Silva JDS, Gubert P. Ion Chromatography: Principles and instrumentation. Orbital: Electron J Chem 2022. [DOI: 10.17807/orbital.v14i2.15871] [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: 11/05/2022] Open
Abstract
Ion chromatography (IC) is one of the most used analytical methods for the determination of inorganic cations and anions, as well as organic ions. It is considered a method of separation with simple steps, low cost and with good efficiency in chromatographic separation. In addition, it has good validation metrics such as sensitivity, selectivity, precision, robustness, low detection limit and quantification. IC easily replaces conventional wet chemistry methods, which tend to have more analysis steps. The easy extraction of samples, in most cases, does not require organic solvents, facilitating the disposal of waste. Since its creation, IC has accumulated advantages and good acceptance in the food, pharmaceutical, environmental monitoring industries, in addition to increasing implementation in academic research laboratories.
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Varão Moura A, Aparecido Rosini Silva A, Domingos Santo da Silva J, Aleixo Leal Pedroza L, Bornhorst J, Stiboller M, Schwerdtle T, Gubert P. Determination of ions in Caenorhabditis elegans by ion chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1204:123312. [DOI: 10.1016/j.jchromb.2022.123312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 05/04/2022] [Accepted: 05/25/2022] [Indexed: 11/27/2022]
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Varão AM, Silva JDS, Amaral LO, Aleixo LLP, Onduras A, Santos CS, Silva LPD, Ribeiro DE, Filho JLL, Bornhorst J, Stiboller M, Schwerdtle T, Alves LC, Soares FAA, Gubert P. Toxic effects of thallium acetate by acute exposure to the nematode C. elegans. J Trace Elem Med Biol 2021; 68:126848. [PMID: 34479099 DOI: 10.1016/j.jtemb.2021.126848] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 03/15/2021] [Revised: 08/10/2021] [Accepted: 08/23/2021] [Indexed: 01/19/2023]
Abstract
BACKGROUND Thallium (Tl) is a toxic metalloid and an emerging pollutant due to electronic devices and dispersal nearby base-metal mining. Therefore, Tl poses a threat to human health and especially the long-term impact on younger individuals exposed is still unknown. This study aimed to evaluate the toxic effects of thallium acetate in C. elegans in early larval stages, considering physiological and behavioral endpoints, as well as the Tl absorption and bioaccumulation. METHODS Caenorhabditis elegans (C. elegans) was exposed to Thallium acetate (50, 100, 150, 200, 250, 500, and 1000 μM) in the L1 larval stage, with the purpose to observe the toxic effects invoked until adulthood. Transgenic worms strains were transported GFP, reporters to DAF-16 and were used to verify the antioxidant response. ICP-MS quantified total Tl+ concentration to evidence Tl uptake and bioaccumulation. RESULTS Thallium acetate caused a significant reduction in the number of living worms (p < 0.0001 in 100-1000 μM), a delay in larval development (p < 0.01; p < 0.001 and p < 0.0001 in 100-1000 μM) through the larval stages, and egg production in the worm's uterus was reduced. Thallium acetate also induced behavioral changes. Additionally, thallium acetate activated antioxidant pathway responses in C. elegans by translocating the DAF-16 transcription factor and activation of SOD-3::GFP expression. The Tl+ quantification in worms showed its absorption in the L1 larval stage and bioaccumulation in the body after development. CONCLUSIONS Thallium acetate reduced survival, delayed development, caused behavioral changes, induced responses inherent to oxidative stress, and serious damage to the worm's reproduction. In addition, C. elegans absorbed and bioaccumulated Tl+. Together, our results highlight the impacts of Tl+ exposure in the early stages of life, even for a short period.
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Affiliation(s)
- A M Varão
- MS(4)Life Laboratory of Mass Spectrometry, Health Sciences Postgraduate Program, São Francisco University, Bragança Paulista, SP, 12916-900, Brazil; Graduate Program in Pure and Applied Chemistry, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil
| | - J D S Silva
- Graduate Program in Pure and Applied Chemistry, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil
| | - L O Amaral
- Graduate Program in Pure and Applied Chemistry, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil
| | - L L P Aleixo
- Immunopathology Laboratory Keizo Asami. The Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - A Onduras
- Immunopathology Laboratory Keizo Asami. The Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - C S Santos
- Immunopathology Laboratory Keizo Asami. The Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - L P D Silva
- Immunopathology Laboratory Keizo Asami. The Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - D E Ribeiro
- Immunopathology Laboratory Keizo Asami. The Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - J L L Filho
- Immunopathology Laboratory Keizo Asami. The Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - J Bornhorst
- Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Wuppertal, Germany
| | - M Stiboller
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany
| | - T Schwerdtle
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany
| | - L C Alves
- Immunopathology Laboratory Keizo Asami. The Federal University of Pernambuco, Recife, Pernambuco, Brazil; Oswaldo Cruz Foundation, Aggeu Magalhães Institute, Department of Parasitology, Brazil
| | - F A A Soares
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Chemistry, 97105900, Santa Maria, RS, Brazil
| | - P Gubert
- Graduate Program in Pure and Applied Chemistry, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil; Immunopathology Laboratory Keizo Asami. The Federal University of Pernambuco, Recife, Pernambuco, Brazil.
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11
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Menezes TM, Neto AMDS, Gubert P, Neves JL. Effects of human serum albumin glycation on the interaction with the tyrosine kinase inhibitor pazopanib unveiled by multi-spectroscopic and bioinformatic tools. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116843] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Ijomone OM, Gubert P, Okoh COA, Varão AM, Amara LDO, Aluko OM, Aschner M. Application of Fluorescence Microscopy and Behavioral Assays to Demonstrating Neuronal Connectomes and Neurotransmitter Systems in C. elegans. Neuromethods 2021; 172:399-426. [PMID: 34754139 PMCID: PMC8575032] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The nematode Caenorhabditis elegans (C. elegans) is a prevailing model which is commonly utilized in a variety of biomedical research arenas, including neuroscience. Due to its transparency and simplicity, it is becoming a choice model organism for conducting imaging and behavioral assessment crucial to understanding the intricacies of the nervous system. Here, the methods required for neuronal characterization using fluorescent proteins and behavioral tasks are described. These are simplified protocols using fluorescent microscopy and behavioral assays to examine neuronal connections and associated neurotransmitter systems involved in normal physiology and aberrant pathology of the nervous system. Our aim is to make available to readers some streamlined and replicable procedures using C. elegans models as well as highlighting some of the limitations.
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Affiliation(s)
- Omamuyovwi M. Ijomone
- The Neuro- Lab, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
- Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Priscila Gubert
- Department of Biochemistry, Laboratório de Imunopatologia Keizo Asami, LIKA, Federal University of Pernambuco, Recife, Brazil
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Bahia, Brazil
| | - Comfort O. A. Okoh
- The Neuro- Lab, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Alexandre M. Varão
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Bahia, Brazil
| | - Leandro de O. Amara
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Bahia, Brazil
| | - Oritoke M. Aluko
- The Neuro- Lab, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
- Department of Physiology, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Michael Aschner
- Departments of Molecular Pharmacology and Neurosciences, Albert Einstein College of Medicine, NY, USA
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13
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Villas-Boas GR, Paes MM, Gubert P, Oesterreich SA. Evaluation of the toxic potential of the aqueous extract from Mangifera indica Linn. (Anacardiaceae) in rats submitted to experimental models of acute and subacute oral toxicity. J Ethnopharmacol 2021; 275:114100. [PMID: 33892064 DOI: 10.1016/j.jep.2021.114100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 04/24/2020] [Revised: 03/14/2021] [Accepted: 04/01/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The population has traditionally used the Mangifera indica plant leaves to treat diseases such as Diabetes Mellitus and alleviate signs and symptoms such as inflammation, diarrhea, and dysentery. In a previous study, we demonstrated that the flavonoids present in the aqueous extract from M. indica leaves (EAMI) exhibited a potent hypoglycemic effect in diabetic rats, promoting the widespread use of the plant by the population and highlighting the importance of investigating its oral toxicity. AIM OF THE STUDY The present study aimed to assess the toxic potential of EAMI in rats submitted to experimental models of acute and subacute (short-term) oral toxicity. MATERIAL AND METHODS For the acute toxicity test, female Wistar rats received a single oral dose of 2000 mg/kg body weight of EAMI and were observed for 14 days. In the short-term toxicity test, male and female Wistar rats received repeated oral EAMI doses of 125, 250, 500 or 1000 mg/kg body weight and observed for 28 days. RESULTS The phytochemical analysis of EAMI demonstrated that the extract has high levels of flavonoids. No animals died in the acute toxicity test, and no clinical changes were observed that show signs of toxicity in the animals. There was no significant change in the weight of the organs of the animals submitted to tests with the EAMI, suggesting that LD50 is greater than 2000 mg/kg. In the conditions and doses tested in the short-term toxicity experiments, the treatment did not produce significant changes in the physiological, biochemical, hematological, and histopathological parameters in the animals evaluated. CONCLUSIONS Our study demonstrated that high doses of EAMI administered acutely, as well as all doses evaluated in the short-term oral toxicity model, should be considered safe during traditional therapeutic use.
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Affiliation(s)
- Gustavo Roberto Villas-Boas
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, BA, Brazil.
| | - Marina Meirelles Paes
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, BA, Brazil.
| | - Priscila Gubert
- Laboratory of Immunopathology Keizo Asami, Department of Biochemistry, Federal University of Pernambuco, Recife, Pernambuco, Brazil.
| | - Silvia Aparecida Oesterreich
- Faculty of Health Sciences, Federal University of Grande Dourados, Rodovia Dourados, Itahum Km 12, Cidade Universitaria, Caixa. Postal 364, CEP 79804-970, Dourados, Mato Grosso do Sul, Brazil.
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14
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Moura AV, Nakamura TC, Do Rego EL, Gubert P, Mkoma SL, Da Rocha GO, Da Silva JDS. Development of a methodology for determining major ions in samples of atmospheric particulate matter by ion chromatography. Orbital: Electron J Chem 2020. [DOI: 10.17807/orbital.v12i4.1494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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15
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Marcelino JM, Villas Boas GR, Cunha M, Deus Júnior R, Castro LH, Araújo FH, Traesel GK, Dos Santos AC, Souza RI, Paes M, Gubert P, Guterres ZDR, de Lima FF, Silva T, Silva RC, Cardoso CAL, Argandoña EJ, Macorini LF, Oesterreich SA. Determination of preclinical safety of oil obtained from Pachira aquatica Aublet (Malvaceae) seeds: histopathological, biochemical, hematological, and genetic toxicity studies in rats. Drug Chem Toxicol 2020; 45:1504-1521. [PMID: 33252270 DOI: 10.1080/01480545.2020.1845713] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Pachira aquatica is a species used for medicinal and food purposes and has numerous phytochemicals that may have systemic toxic effects and damage to genetic material. This study aimed to evaluate acute and short-term oral toxicity, as well as genotoxic and clastogenic effects of oil extracted from P. aquatica (PASO) seeds in rats and Drosophila melanogaster. The results obtained with biochemical and hematological analyses did not show significant changes in any evaluated parameters when compared with reference values for the species used in the study. Data from the histopathological analysis corroborated results found in this study. These findings indicate low acute and short-term toxicity following oral PASO exposure in rats under the experimental conditions tested. Tests performed in rats showed that PASO did not present significant genotoxic or clastogenic effects on the cells analyzed with the three doses tested. Treatment with PASO in the offspring of HB crossing, which showed high cytochrome P450 levels, did not exhibit genotoxic activity, as demonstrated by the SMART test. These results suggest that products from the hepatic oil metabolism did not show genotoxicity under the conditions tested. Together, the results indicate that, under the experimental conditions tested, PASO is safe for repeated intake. As PASO exhibited low potential to cause harmful effects on living organisms, our study encourages further research aimed at assessing its pharmacological activity, since it is a widely consumed plant.
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Affiliation(s)
| | - Gustavo Roberto Villas Boas
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Bahia, Brazil
| | - Mila Cunha
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Bahia, Brazil
| | - Ramão Deus Júnior
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, Brazil
| | - Luis Henrique Castro
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, Brazil
| | | | | | | | | | - Marina Paes
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Bahia, Brazil
| | - Priscila Gubert
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Bahia, Brazil.,Laboratory of Imunopathology KeizoAsami, Department of Biochemistry, Federal University of Pernambuco, Recife, Brazil
| | - Zaira da Rosa Guterres
- Laboratory of Phytogenesis and Mutagenesis, State University of Mato Grosso do Sul, Mato Grosso do Sul, Brazil
| | | | - Tania Silva
- Postgraduate Program in Environmental Science and Technology, Federal University of Grande Dourados, Mato Grosso do Sul, Brazil
| | - Rogério César Silva
- Chemistry Course, State University of Mato Grosso do Sul, Mato Grosso do Sul, Brazil
| | | | - Eliana Janet Argandoña
- Faculty of Engineering - FAEN/UFGD, Federal University of Grande Dourados, Mato Grosso do Sul, Brazil
| | - Luis Fernando Macorini
- Faculty of Biological Sciences and Health, University Center of Grande Dourados, Mato Grosso do Sul, Brazil
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16
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Martins AC, Gubert P, Villas Boas GR, Paes MM, Santamaría A, Lee E, Tinkov AA, Bowman AB, Aschner M. Manganese-induced neurodegenerative diseases and possible therapeutic approaches. Expert Rev Neurother 2020; 20:1109-1121. [PMID: 32799578 PMCID: PMC7657997 DOI: 10.1080/14737175.2020.1807330] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [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: 04/29/2020] [Accepted: 08/05/2020] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis and prion disease represent important public health concerns. Exposure to high levels of heavy metals such as manganese (Mn) may contribute to their development. AREAS COVERED In this critical review, we address the role of Mn in the etiology of neurodegenerative diseases and discuss emerging treatments of Mn overload, such as chelation therapy. In addition, we discuss natural and synthetic compounds under development as prospective therapeutics. Moreover, bioinformatic approaches to identify new potential targets and therapeutic substances to reverse the neurodegenerative diseases are discussed. EXPERT OPINION Here, the authors highlight the importance of better understanding the molecular mechanisms of toxicity associated with neurodegenerative diseases, and the role of Mn in these diseases. Additional emphasis should be directed to the discovery of new agents to treat Mn-induced diseases, since present day chelator therapies have limited bioavailability. Furthermore, the authors encourage the scientific community to develop research using libraries of compounds to screen those compounds that show efficacy in regulating brain Mn levels. In addition, bioinformatics may provide novel insight for pathways and clinical treatments associated with Mn-induced neurodegeneration, leading to a new direction in Mn toxicological research.
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Affiliation(s)
- Airton C. Martins
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Priscila Gubert
- Department of Biochemistry, Laboratory of Immunopathology Keizo Asami, LIKA, Federal, University of Pernambuco, Recife, Brazil
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Bahia, Brazil
| | - Gustavo R Villas Boas
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Barreiras, Bahia, Brazil
| | - Marina Meirelles Paes
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Barreiras, Bahia, Brazil
| | - Abel Santamaría
- Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Mexico City 14269, Mexico
| | - Eunsook Lee
- Department of Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32301, USA
| | - Alexey A. Tinkov
- IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
- Yaroslavl State University, Yaroslavl, Russia
- Federal Research Centre of Biological Systems and Agro-Technologies of the Russian Academy of Sciences, Orenburg, Russia
| | - Aaron B Bowman
- School of Health Sciences, Purdue University, West Lafayette, IN 47907-2051, USA
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
- IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
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17
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Amaral LDO, Lima VS, Soares SM, Bornhorst J, Lemos SS, Gatto CC, Burrow RA, Gubert P. Synthesis, structural characterization and evaluation of the chelating potential in C. elegans involving complexes of mercury (II) with Schiff bases derived from amino acids. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121500] [Citation(s) in RCA: 1] [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: 12/14/2022]
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18
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Souza RC, Portella RB, Almeida PVNB, Pinto CO, Gubert P, Santos da Silva JD, Nakamura TC, do Rego EL. Human milk contamination by nine organochlorine pesticide residues (OCPs). J Environ Sci Health B 2020; 55:530-538. [PMID: 32525731 DOI: 10.1080/03601234.2020.1729630] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Organochlorine pesticides (OCPs) are widely used around the world as insecticides, herbicides, fungicides, nematicides, and rodenticides. Despite banned in Brazil, the usage remains occurring in many countries. The persistence and extreme mobility of OCPs contribute to the contamination of the environment and the human body. The OCPs bioaccumulation in adipose tissue triggers the excretion into human milk during breastfeeding. Hence, the present study determined eighteen OCPs residues in the breast milk of mothers from the Western Region of Bahia State, Brazil. Nine different residue species were found, including beta-Hexachlorocyclohexane (9.24 ± 0.00 ng g-1 fat), delta- Hexachlorocyclohexane (22.15 ± 10.48 ng g-1 fat), Heptachlor (58.08 ± 74.13 ng g-1 fat), Aldrin (142.65 ± 50.65 ng g-1 fat), Dieldrin (774.62 ± 472.68 ng g-1 fat), Endosulfan I (408.44 ± 245.51 ng g-1 fat), Dichloro-diphenyl-dichloro-ethylene (29.17 ± 22.42 ng g-1 fat), Dichloro-diphenyl-trichloro-ethane (28.87 ± 0.00 ng g-1 fat) and Methoxychlor (1699.67 ± 797.43 ng g-1 fat). The Methoxychlor presence in all samples may reveal a recent exposure, while Dieldrin and Endosulfan I analyses can point to distant past exposure.
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Affiliation(s)
- Raiane Costa Souza
- Department of Environmental Sciences, Federal University of Western Bahia, Bahia, Brazil
| | | | | | - Caroline Oliveira Pinto
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Bahia, Brazil
| | - Priscila Gubert
- Postgraduate Program in Pure and Applied Chemistry, Federal University of Western of Bahia, Bahia, Brazil
- Department of Biochemistry, Federal University of Pernambuco, Recife, Brazil
| | | | | | - Enoc Lima do Rego
- Chemistry Institute - IQ, University of Brasília - UnB, Brasília, Brazil
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19
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Taylor CA, Tuschl K, Nicolai MM, Bornhorst J, Gubert P, Varão AM, Aschner M, Smith DR, Mukhopadhyay S. Maintaining Translational Relevance in Animal Models of Manganese Neurotoxicity. J Nutr 2020; 150:1360-1369. [PMID: 32211802 PMCID: PMC7269748 DOI: 10.1093/jn/nxaa066] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/06/2020] [Accepted: 02/25/2020] [Indexed: 12/14/2022] Open
Abstract
Manganese is an essential metal, but elevated brain Mn concentrations produce a parkinsonian-like movement disorder in adults and fine motor, attentional, cognitive, and intellectual deficits in children. Human Mn neurotoxicity occurs owing to elevated exposure from occupational or environmental sources, defective excretion (e.g., due to cirrhosis), or loss-of-function mutations in the Mn transporters solute carrier family 30 member 10 or solute carrier family 39 member 14. Animal models are essential to study Mn neurotoxicity, but in order to be translationally relevant, such models should utilize environmentally relevant Mn exposure regimens that reproduce changes in brain Mn concentrations and neurological function evident in human patients. Here, we provide guidelines for Mn exposure in mice, rats, nematodes, and zebrafish so that brain Mn concentrations and neurobehavioral sequelae remain directly relatable to the human phenotype.
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Affiliation(s)
- Cherish A Taylor
- Division of Pharmacology & Toxicology, College of Pharmacy, Institute for Cellular & Molecular Biology, and Institute for Neuroscience, The University of Texas at Austin, Austin, TX, USA
| | - Karin Tuschl
- Department of Cell and Developmental Biology, University College London, London, United Kingdom,Department of Developmental Neurobiology, King's College London, London, United Kingdom,Address correspondence to KT (e-mail: )
| | - Merle M Nicolai
- Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Wuppertal, Germany
| | - Julia Bornhorst
- Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Wuppertal, Germany
| | - Priscila Gubert
- Department of Biochemistry, Laboratory of Immunopathology Keizo Asami-LIKA, Federal University of Pernambuco, Recife, Pernambuco, Brazil,Postgraduate Program in Pure and Applied Chemistry, Federal University of Western Bahia, Barreiras, Bahia, Brazil
| | - Alexandre M Varão
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Donald R Smith
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA
| | - Somshuvra Mukhopadhyay
- Division of Pharmacology & Toxicology, College of Pharmacy, Institute for Cellular & Molecular Biology, and Institute for Neuroscience, The University of Texas at Austin, Austin, TX, USA,Address correspondence to SM (e-mail: )
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20
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Villas Boas GR, Rodrigues Lemos JM, de Oliveira MW, dos Santos RC, Stefanello da Silveira AP, Barbieri Bacha F, Ito CNA, Bortolotte Cornelius E, Brioli Lima F, Sachilarid Rodrigues AM, Belmal Costa N, Francisco Bittencourt F, Freitas de Lima F, Meirelles Paes M, Gubert P, Oesterreich SA. Aqueous extract from Mangifera indica Linn. (Anacardiaceae) leaves exerts long-term hypoglycemic effect, increases insulin sensitivity and plasma insulin levels on diabetic Wistar rats. PLoS One 2020; 15:e0227105. [PMID: 31914140 PMCID: PMC6948748 DOI: 10.1371/journal.pone.0227105] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 11/18/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Diabetes mellitus is one of the most common todays public health problems. According to a survey by the World Health Organization, this metabolic disorder has reached global epidemic proportions, with a worldwide prevalence of 8.5% in the adult population. OBJECTIVES The present study aimed to investigate the hypoglycemic effect of aqueous extract of Mangifera indica (EAMI) leaves in streptozotocin-induced diabetic rats. METHODS Sixty male rats were divided into 2 groups: Normoglycemic and Diabetic. Each group was subdivided into negative control, glibenclamide 3 or 10 mg/kg, EAMI 125, 250, 500, and 1000 mg/kg. Intraperitoneal injection of streptozotocin 100 mg/kg was used to DM induction. The hypoglycemic response was assessed acutely after two and four weeks of treatment. After a 6-hour fasting period, the fasting blood glucose of animals was verified, and 2.5 g/kg glucose solution was orally administered. The insulin tolerance test and plasma insulin levels assessment were performed in the morning after fasting of 12 to 14 hours. RESULTS AND CONCLUSION The chemical analysis of EAMI showed high levels of phenolic compounds. There was no significant difference in fasting blood glucose between normoglycemic and diabetic groups, and that EAMI did not have an acute effect on diabetes. After two and four weeks of treatment, the extract significantly reduced blood glucose levels, exceeding glibenclamide effects. EAMI was effective in maintaining the long-term hypoglycemic effect, as well as, significantly increased the sensitivity of diabetic animals to insulin and the plasma insulin level.
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Affiliation(s)
- Gustavo Roberto Villas Boas
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Barreiras, Bahia, Brazil
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | | | | | | | | | - Flávia Barbieri Bacha
- Faculty of Health Sciences, University Center of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | - Caren Naomi Aguero Ito
- Faculty of Health Sciences, University Center of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | | | - Fernanda Brioli Lima
- Faculty of Health Sciences, University Center of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | | | - Nathália Belmal Costa
- Faculty of Health Sciences, University Center of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | | | - Fernando Freitas de Lima
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | - Marina Meirelles Paes
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Barreiras, Bahia, Brazil
| | - Priscila Gubert
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Barreiras, Bahia, Brazil
- Department of Biochemistry, Laboratory of Imunopathology Keizo Asami, Federal University of Pernambuco, Recife, Brazil
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21
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Villas Boas GR, Rodrigues Lemos JM, de Oliveira MW, Dos Santos RC, Stefanello da Silveira AP, Bacha FB, Aguero Ito CN, Cornelius EB, Lima FB, Sachilarid Rodrigues AM, Costa NB, Bittencourt FF, Freitas de Lima F, Paes MM, Gubert P, Oesterreich SA. Preclinical safety evaluation of the aqueous extract from Mangifera indica Linn. (Anacardiaceae): genotoxic, clastogenic and cytotoxic assessment in experimental models of genotoxicity in rats to predict potential human risks. J Ethnopharmacol 2019; 243:112086. [PMID: 31310830 DOI: 10.1016/j.jep.2019.112086] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 04/03/2019] [Revised: 06/22/2019] [Accepted: 07/12/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Medicinal plants widely used by the population contain significant concentrations of biologically active compounds and, although they have proven pharmacological properties, can cause DNA damage and develop fatal diseases. AIM OF THE STUDY The present study aimed to evaluate the genotoxic, cytotoxic potential and clastogenic effects of the aqueous extract from Mangifera indica leaves (EAMI) on rats submitted to experimental genotoxicity models and through the SMART test performed in Drosophila melanogaster. MATERIAL AND METHODS The comet assay and the micronucleus test were performed on peripheral and bone marrow blood, respectively, of Wistar rats, orally treated with EAMI at doses of 125, 250, 500 and 1000 mg/kg/bw for 28 days. In the SMART test, the standard cross between three mutant D. melanogaster strains was used. Larvae were treated with EAMI at different concentrations, and the wings of adult flies were evaluated for the presence/frequency of mutant spots and compared to the negative control group. RESULTS Phytochemical analysis of EAMI indicated high levels of flavonoids. The tests performed in rats showed that EAMI did not present significant genotoxic or clastogenic effects. The results showed a critical dose-dependent cytoprotective effect exerted by EAMI. This result was attributed to the high content of polyphenols and flavonoids. The biotransformation metabolites of EAMI did not present genotoxic activity, as demonstrated by the SMART test. CONCLUSIONS These results are relevant since they provide safety information about a plant species of great therapeutic, economical, nutritious and ethnopharmacological value for the population.
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Affiliation(s)
- Gustavo Roberto Villas Boas
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Barreiras, Bahia, Brazil.
| | | | | | - Rafael Claudino Dos Santos
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil.
| | | | - Flávia Barbieri Bacha
- Faculty of Health Sciences, University Center of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil.
| | - Caren Naomi Aguero Ito
- Faculty of Health Sciences, University Center of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil.
| | | | - Fernanda Brioli Lima
- Faculty of Health Sciences, University Center of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil.
| | | | - Nathália Belmal Costa
- Faculty of Health Sciences, University Center of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil.
| | | | - Fernando Freitas de Lima
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil.
| | - Marina Meirelles Paes
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Barreiras, Bahia, Brazil.
| | - Priscila Gubert
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Barreiras, Bahia, Brazil.
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Villas Boas GR, Boerngen de Lacerda R, Paes MM, Gubert P, Almeida WLDC, Rescia VC, de Carvalho PMG, de Carvalho AAV, Oesterreich SA. Molecular aspects of depression: A review from neurobiology to treatment. Eur J Pharmacol 2019; 851:99-121. [PMID: 30776369 DOI: 10.1016/j.ejphar.2019.02.024] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [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: 10/04/2018] [Revised: 02/14/2019] [Accepted: 02/14/2019] [Indexed: 12/14/2022]
Abstract
Major depressive disorder (MDD), also known as unipolar depression, is one of the leading causes of disability and disease worldwide. The signs and symptoms are low self‑esteem, anhedonia, feeling of worthlessness, sense of rejection and guilt, suicidal thoughts, among others. This review focuses on studies with molecular-based approaches involving MDD to obtain an integrated, more detailed and comprehensive view of the brain changes produced by this disorder and its treatment and how the Central Nervous System (CNS) produces neuroplasticity to orchestrate adaptive defensive behaviors. This article integrates affective neuroscience, psychopharmacology, neuroanatomy and molecular biology data. In addition, there are two problems with current MDD treatments, namely: 1) Low rates of responsiveness to antidepressants and too slow onset of therapeutic effect; 2) Increased stress vulnerability and autonomy, which reduces the responses of currently available treatments. In the present review, we encourage the prospection of new bioactive agents for the development of treatments with post-transduction mechanisms, neurogenesis and pharmacogenetics inducers that bring greater benefits, with reduced risks and maximized access to patients, stimulating the field of research on mood disorders in order to use the potential of preclinical studies. For this purpose, improved animal models that incorporate the molecular and anatomical tools currently available can be applied. Besides, we encourage the study of drugs that do not present "classical application" as antidepressants, (e.g., the dissociative anesthetic ketamine and dextromethorphan) and drugs that have dual action mechanisms since they represent potential targets for novel drug development more useful for the treatment of MDD.
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Affiliation(s)
- Gustavo Roberto Villas Boas
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil; Faculty of Health Sciences, Federal University of Grande Dourados, Dourados Rodovia Dourados, Itahum Km 12, Cidade Universitaria, Caixa. postal 364, CEP 79804-970, Dourados, Mato Grosso do Sul, Brazil.
| | - Roseli Boerngen de Lacerda
- Department of Pharmacology of the Biological Sciences Center, Federal University of Paraná, Jardim das Américas, Caixa. postal 19031, CEP 81531-990, Curitiba, Paraná, Brazil.
| | - Marina Meirelles Paes
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Priscila Gubert
- Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Wagner Luis da Cruz Almeida
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Vanessa Cristina Rescia
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Pablinny Moreira Galdino de Carvalho
- Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Adryano Augustto Valladao de Carvalho
- Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Silvia Aparecida Oesterreich
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados Rodovia Dourados, Itahum Km 12, Cidade Universitaria, Caixa. postal 364, CEP 79804-970, Dourados, Mato Grosso do Sul, Brazil.
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Machado ML, Arantes LP, Gubert P, Zamberlan DC, da Silva TC, da Silveira TL, Boligon A, Soares FAA. Ilex paraguariensis modulates fat metabolism in Caenorhabditis elegans through purinergic system (ADOR-1) and nuclear hormone receptor (NHR-49) pathways. PLoS One 2018; 13:e0204023. [PMID: 30252861 PMCID: PMC6155532 DOI: 10.1371/journal.pone.0204023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 09/01/2018] [Indexed: 11/30/2022] Open
Abstract
Ilex paraguariensis is a well-known plant that is widely consumed in South America, primarily as a drink called mate. Mate is described to have stimulant and medicinal properties. Considering the potential anti-lipid effects of I. paraguariensis infusion, we used an extract of this plant as a possible modulator of fat storage to control lipid metabolism in worms. Herein, the I. paraguariensis-dependent modulation of fat metabolism in Caenorhabditis elegans was investigated. C. elegans were treated with I. paraguariensis aqueous extract (1 mg/ml) from L1 larvae stage until adulthood, to simulate the primary form of consumption. Expression of adipocyte triglyceride lipase 1 (ATGL-1) and heat shock protein 16.2, lipid accumulation through C1-BODIPY-C12 (BODIPY) lipid staining, behavioral parameters, body length, total body energy expenditure and overall survival were analyzed. Total body energy expenditure was determined by the oxygen consumption rate in N2, nuclear hormone receptor knockout, nhr-49(nr2041), and adenosine receptor knockout, ador-1(ox489) strains. Ilex paraguariensis extract increased ATGL-1 expression 20.06% and decreased intestinal BODIPY fat staining 63.36%, compared with the respective control group, without affecting bacterial growth and energetic balance, while nhr-49(nr2041) and ador-1(ox489) strains blocked the worm fat loss. In addition, I. paraguariensis increased the oxygen consumption in N2 worms, but not in mutant strains, increased N2 worm survival following juglone exposure, and did not alter hsp-16.2 expression. We demonstrate for the first time that I. paraguariensis can decrease fat storage and increase body energy expenditure in worms. These effects depend on the purinergic system (ADOR-1) and NHR-49 pathways. Ilex paraguariensis upregulated the expression of ATGL-1 to modulate fat metabolism. Furthermore, our data corroborates with other studies that demonstrate that C. elegans is a useful tool for studies of fat metabolism and energy consumption.
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Affiliation(s)
- Marina Lopes Machado
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Leticia Priscilla Arantes
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Priscila Gubert
- Centro de Ciências Biológicas e da Saúde, Campus Reitor Edgard Santos, Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Daniele Coradini Zamberlan
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Thayanara Cruz da Silva
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Tássia Limana da Silveira
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Aline Boligon
- Departamento da Farmácia Industrial, Laboratório de Pesquisa Fitoquímica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Félix Alexandre Antunes Soares
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
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24
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Gubert P, Puntel B, Lehmen T, Fessel JP, Cheng P, Bornhorst J, Trindade LS, Avila DS, Aschner M, Soares FAA. Metabolic effects of manganese in the nematode Caenorhabditis elegans through DAergic pathway and transcription factors activation. Neurotoxicology 2018; 67:65-72. [PMID: 29673961 DOI: 10.1016/j.neuro.2018.04.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 10/17/2017] [Revised: 03/27/2018] [Accepted: 04/08/2018] [Indexed: 11/24/2022]
Abstract
Manganese (Mn) is an essential trace element for physiological functions since it acts as an enzymatic co-factor. Nevertheless, overexposure to Mn has been associated with a pathologic condition called manganism. Furthermore, Mn has been reported to affect lipid metabolism by mechanisms which have yet to be established. Herein, we used the nematode Caenorhabditis elegans to examine Mn's effects on the dopaminergic (DAergic) system and determine which transcription factors that regulate with lipid metabolism are affected by it. Worms were exposed to Mn for four hours in the presence of bacteria and in a liquid medium (85 mM NaCl). Mn increased fat storage as evidenced both by Oil Red O accumulation and triglyceride levels. In addition, metabolic activity was reduced as a reflection of decreased oxygen consumption caused by Mn. Mn also affected feeding behavior as evidenced by decreased pharyngeal pumping rate. DAergic neurons viability were not altered by Mn, however the dopamine levels were significantly reduced following Mn exposure. Furthermore, the expression of sbp-1 transcription factor and let-363 protein kinase responsible for lipid accumulation control was increased and decreased, respectively, by Mn. Altogether, our data suggest that Mn increases the fat storage in C. elegans, secondary to DAergic system alterations, under the control of SBP-1 and LET-363 proteins.
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Affiliation(s)
- Priscila Gubert
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Bruna Puntel
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Tassia Lehmen
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Joshua P Fessel
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Pan Cheng
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Julia Bornhorst
- Institute of Nutritional Sciences, University of Potsdam, Arthur-Scheunert-Allee 114-166, 14558, Nuthetal, Germany
| | - Lucas Siqueira Trindade
- Department of Biological Sciences, Tokyo Metropolitan University, 1-1 Hachioji, Tokyo, 192-0397, Japan
| | - Daiana S Avila
- Laboratório do Grupo de Pesquisa em Bioquímica e Toxicologia em Caenorhabditis elegans (GBToxCe), Universidade Federal do Pampa - UNIPAMPA, Uruguaiana, RS, Brazil
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY, 10461, USA
| | - Felix A A Soares
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
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Stefanello ST, Gubert P, Puntel B, Mizdal CR, de Campos MMA, Salman SM, Dornelles L, Avila DS, Aschner M, Soares FAA. Protective effects of novel organic selenium compounds against oxidative stress in the nematode Caenorhabditis elegans. Toxicol Rep 2015; 2:961-967. [PMID: 26726309 PMCID: PMC4695226 DOI: 10.1016/j.toxrep.2015.06.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Organic selenium compounds possess numerous biological properties, including antioxidant activity. Yet, the high toxicity of some of them, such as diphenyl diselenide (DPDS), is a limiting factor in their current usage. Accordingly, we tested four novel organic selenium compounds in the non-parasite nematode Caenorhabditis elegans and compared their efficacy to DPDS. The novel organic selenium compounds are β-selenoamines (1-phenyl-3-(p-tolylselanyl)propan-2-amine (C1) and 1-(2-methoxyphenylselanyl)-3-phenylpropan-2-amine (C2) and analogs of DPDS (1,2-bis (2-methoxyphenyl) diselenide (C3) and 1,2-bisp-tolyldiselenide (C4). Synchronized worms at the L4 larval stage were exposed for one hour in M9 buffer to these compounds. Oxidative stress conditions were induced by juglone (200 μM) and heat shock (35 °C). Moreover, we evaluated Caenorhabditis elegans behavior, GST-4::GFP (glutathione S-transferase) expression and the activity of acetylcholinesterase (AChE). All tested compounds efficiently restored viability in juglone stressed worms. However, DPDS, C2, C3 and C4 significantly decreased the defecation cycle time. Juglone-induced GST-4::GFP expression was not attenuated in worms pretreated with the novel compounds, except with C2. Finally, AChE activity was reduced by DPDS, C2, C3 and C4. To our knowledge, this is study firstly showed the effects of C1, C2, C3 and C4 selenium-derived compounds in Caenorhabditis elegans. Low toxic effects were noted, except for reduction in the defecation cycle, which is likely associated with AChE inhibition. The juglone-induced stress (reduced viability) was fully reversed by compounds to control animal levels. C2 was also efficient in reducing the juglone-induced GST-4::GFP expression, suggesting the latter may mediate the stress induced by this compound. Future studies could be profitably directed at addressing additional molecular mechanisms that mediate the protective effects of these novel organic selenium compounds.
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Affiliation(s)
- Sílvio Terra Stefanello
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, Brazil
| | - Priscila Gubert
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, Brazil
| | - Bruna Puntel
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, Brazil
| | - Caren Rigon Mizdal
- Programa de Pós-graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, Brazil
| | - Marli Matiko Anraku de Campos
- Programa de Pós-graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, Brazil
| | - Syed M Salman
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, Brazil
| | - Luciano Dornelles
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, Brazil
| | - Daiana Silva Avila
- Laboratório do Grupo de Pesquisa em Bioquímica e Toxicologia em Caenorhabditis elegans (GBToxCe), Universidade Federal do Pampa - UNIPAMPA, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA
| | - Félix Alexandre Antunes Soares
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, Brazil
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Wollenhaupt SGN, Soares AT, Salgueiro WG, Noremberg S, Reis G, Viana C, Gubert P, Soares FA, Affeldt RF, Lüdtke DS, Santos FW, Denardin CC, Aschner M, Avila DS. Seleno- and telluro-xylofuranosides attenuate Mn-induced toxicity in C. elegans via the DAF-16/FOXO pathway. Food Chem Toxicol 2013; 64:192-9. [PMID: 24296137 DOI: 10.1016/j.fct.2013.11.030] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [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: 06/11/2013] [Revised: 11/04/2013] [Accepted: 11/22/2013] [Indexed: 01/12/2023]
Abstract
Organochalcogens are promising pharmacological agents that possess significant biological activities. Nevertheless, because of the complexity of mammalian models, it has been difficult to determine the molecular pathways and specific proteins that are modulated in response to treatments with these compounds. The nematode worm Caenorhabditis elegans is an alternative experimental model that affords easy genetic manipulations, green fluorescent protein tagging and in vivo live analysis of toxicity. Abundant evidence points to oxidative stress in mediating manganese (Mn)-induced toxicity. In this study we challenged worms with Mn, and investigated the efficacy of inedited selenium- and tellurium-xylofuranosides in reversing and/or protecting the worms from Mn-induced toxicity. In addition, we investigated their putative mechanism of action. First, we determined the lethal dose 50% (LD50) and the effects of the xylofuranosides on various toxic parameters. This was followed by studies on the ability of xylofuranosides to afford protection against Mn-induced toxicity. Both Se- and Te-xylofuranosides increased the expression of superoxide dismutase (SOD-3). Furthermore, we observed that the xylofuranosides induced nuclear translocation of the transcription factor DAF-16/FOXO, which in the worm is known to regulate stress responsiveness, aging and metabolism. These findings suggest that xylofuranosides attenuate toxicity Mn-induced, by regulating the DAF-16/FOXO signaling pathway.
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Affiliation(s)
- Suzi G N Wollenhaupt
- Laboraterio do Grupo de Pesquisa em Bioquímica e Toxicologia em Caenorhabditis elegans (GBToxCe), Universidade Federal do Pampa - UNIPAMPA, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Ana Thalita Soares
- Laboraterio do Grupo de Pesquisa em Bioquímica e Toxicologia em Caenorhabditis elegans (GBToxCe), Universidade Federal do Pampa - UNIPAMPA, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Willian G Salgueiro
- Laboraterio do Grupo de Pesquisa em Bioquímica e Toxicologia em Caenorhabditis elegans (GBToxCe), Universidade Federal do Pampa - UNIPAMPA, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Simone Noremberg
- Departamento de Química, Universidade Federal de Santa Maria - UFSM, CEP 97105-900, Santa Maria, RS, Brazil
| | - Gabriel Reis
- Departamento de Química, Universidade Federal de Santa Maria - UFSM, CEP 97105-900, Santa Maria, RS, Brazil
| | - Carine Viana
- Departamento de Química, Universidade Federal de Santa Maria - UFSM, CEP 97105-900, Santa Maria, RS, Brazil
| | - Priscila Gubert
- Departamento de Química, Universidade Federal de Santa Maria - UFSM, CEP 97105-900, Santa Maria, RS, Brazil
| | - Felix A Soares
- Departamento de Química, Universidade Federal de Santa Maria - UFSM, CEP 97105-900, Santa Maria, RS, Brazil
| | - Ricardo F Affeldt
- Instituto de Química, Universidade Federal do Rio Grande do Sul - UFRGS, CEP 91501-970, Porto Alegre, RS, Brazil
| | - Diogo S Lüdtke
- Instituto de Química, Universidade Federal do Rio Grande do Sul - UFRGS, CEP 91501-970, Porto Alegre, RS, Brazil
| | - Francielli W Santos
- Laboratório de Biotecnologia da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal do Pampa - UNIPAMPA, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Cristiane C Denardin
- Laboraterio do Grupo de Pesquisa em Bioquímica e Toxicologia em Caenorhabditis elegans (GBToxCe), Universidade Federal do Pampa - UNIPAMPA, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Michael Aschner
- Division of Clinical Pharmacology and Pediatric Toxicology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37240, USA
| | - Daiana S Avila
- Laboraterio do Grupo de Pesquisa em Bioquímica e Toxicologia em Caenorhabditis elegans (GBToxCe), Universidade Federal do Pampa - UNIPAMPA, CEP 97500-970, Uruguaiana, RS, Brazil.
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Gubert P, Aguiar GC, Mourão T, Bridi JC, Barros AG, Soares FA, Romano-Silva MA. Behavioral and metabolic effects of the atypical antipsychotic ziprasidone on the nematode Caenorhabditis elegans. PLoS One 2013; 8:e74780. [PMID: 24069346 PMCID: PMC3777939 DOI: 10.1371/journal.pone.0074780] [Citation(s) in RCA: 14] [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: 03/05/2013] [Accepted: 08/06/2013] [Indexed: 11/29/2022] Open
Abstract
Atypical antipsychotics are associated with metabolic syndrome, primarily associated with weight gain. The effects of Ziprasidone, an atypical antipsychotic, on metabolic syndrome has yet to be evaluated. Here in, we evaluated lipid accumulation and behavioral changes in a new experimental model, the nematode Caenorhabditis elegans (C. elegans). Behavioral parameters in the worms were evaluated 24 h after Ziprasidone treatment. Subsequently, lipid accumulation was examined using Nile red, LipidTox green and BODIPY labeling. Ziprasidone at 40 µM for 24 h effectively decreased the fluorescence labeling of all markers in intestinal cells of C. elegans compared to control (0.16% dimethyl sulfoxide). Ziprasidone did not alter behaviors related to energetic balance, such as pharynx pumping, defecation cycles and movement. There was, however, a reduction in egg-production, egg-laying and body-length in nematodes exposed to Ziprasidone without any changes in the progression of larval stages. The serotoninergic pathway did not appear to modulate Ziprasidone’s effects on Nile red fluorescence. Additionally, Ziprasidone did not alter lipid accumulation in daf-16 or crh-1 deletion mutants (orthologous of the transcription factors DAF-16 and CREB, respectively). These results suggest that Ziprasidone alters reproductive behavior, morphology and lipid reserves in the intestinal cells of C. elegans. Our results highlight that the DAF-16 and CREB transcription factors are essential for Ziprasidone-induced fat store reduction.
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Affiliation(s)
- Priscila Gubert
- INCT de Medicina Molecular, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Lugokenski TH, Gubert P, Bueno DC, Nogara PA, de Aquino Saraiva R, Barcelos RP, Carratu VS, Bresolin L, de Vargas Barbosa NB, Pereira ME, da Rocha JBT, Soares FAA. Effect of different oximes on rat and human cholinesterases inhibited by methamidophos: a comparative in vitro and in silico study. Basic Clin Pharmacol Toxicol 2012; 111:362-70. [PMID: 22703537 DOI: 10.1111/j.1742-7843.2012.00912.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2011] [Accepted: 05/25/2012] [Indexed: 11/29/2022]
Abstract
Methamidophos is one of the most toxic organophosphorus (OP) compounds. It acts via phosphorylation of a serine residue in the active site of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), leading to enzyme inactivation. Different oximes have been developed to reverse this inhibition. Thus, our work aimed to test the protective or reactivation capability of pralidoxime and obidoxime, as well as two new oximes synthesised in our laboratory, on human and rat cholinesterases inhibited by methamidophos. In addition, we performed molecular docking studies in non-aged methamidophos-inhibited AChE to understand the mechanisms involved. Our results suggested that pralidoxime protected and reactivated methamidophos-inhibited rat brain AChE. Regarding human erythrocyte AChE, all oximes tested protected and reactivated the enzyme, with the best reactivation index observed at the concentration of 50 μM. Concerning BChE, butane-2,3-dionethiosemicarbazone oxime (oxime 1) was able to protect and reactivate the methamidophos-inhibited BChE by 45% at 50 μM, whereas 2(3-(phenylhydrazono)butan-2-one oxime (oxime 2) reactivated 28% of BChE activity at 100 μM. The two classical oximes failed to reactivate BChE. The molecular docking study demonstrated that pralidoxime appears to be better positioned in the active site to attack the O-P moiety of the inhibited enzyme, being near the oxyanion hole, whereas our new oximes were stably positioned in the active site in a manner similar to that of obidoxime. In conclusion, our work demonstrated that the newly synthesised oximes were able to reactivate not only human erythrocyte AChE but also human plasma BChE, which could represent an advantage in the treatment of OP compounds poisoning.
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29
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Colle D, Arantes LP, Gubert P, da Luz SCA, Athayde ML, Teixeira Rocha JB, Soares FAA. Antioxidant properties of Taraxacum officinale leaf extract are involved in the protective effect against hepatoxicity induced by acetaminophen in mice. J Med Food 2012; 15:549-56. [PMID: 22424457 DOI: 10.1089/jmf.2011.0282] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Acetaminophen (APAP) hepatotoxicity has been related to several cases of hepatitis, cirrhosis, and hepatic transplant. As APAP hepatotoxicity is related to reactive oxygen species (ROS) formation and excessive oxidative stress, natural antioxidant compounds have been tested as an alternative therapy to diminish the hepatic dysfunction induced by APAP. Taraxacum officinale Weber (Family Asteraceae), commonly known as dandelion, is used for medicinal purposes because of its choleretic, diuretic, antioxidant, anti-inflammatory, and hepatoprotective properties. This study evaluated the hepatoprotective activity of T. officinale leaf extract against APAP-induced hepatotoxicity. T. officinale was able to decrease thiobarbituric acid-reactive substance levels induced by 200 mg/kg APAP (p.o.), as well as prevent the decrease in sulfhydryl levels caused by APAP treatment. Furthermore, histopathological alterations, as well as the increased levels of serum aspartate and alanine aminotransferases caused by APAP, were prevented by T. officinale (0.1 and 0.5 mg/mL). In addition, T. officinale extract also demonstrated antioxidant activity in vitro, as well as scavenger activity against 2,2-diphenyl-1-picrylhydrazyl and nitric oxide radicals. Our results clearly demonstrate the hepatoprotective effect of T. officinale against the toxicity induced by APAP. The possible mechanisms involved include its scavenger activities against ROS and reactive nitrogen species, which are attributed to the content of phenolic compounds in the extract.
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Affiliation(s)
- Dirleise Colle
- Department of Chemistry, Natural and Exact Sciences Center, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
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Carvalho N, Puntel G, Correa P, Gubert P, Amaral G, Morais J, Royes L, da Rocha J, Soares F. Protective effects of therapeutic cold and heat against the oxidative damage induced by a muscle strain injury in rats. J Sports Sci 2011; 28:923-35. [PMID: 20544483 DOI: 10.1080/02640414.2010.481722] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The mechanisms of action of physical agents commonly used to treat skeletal muscle lesions are not well understood. In this study, we examined whether the modulation of oxidative stress is involved in the beneficial effects of cold and heat on gastrocnemius muscle strain injury. Adult male Wistar rats were submitted to a strain injury and treated with therapeutic agents in an isolated or combined form. Strain damage caused an increase in muscle and blood oxidative damage. We suggest that this oxidative damage might be related to the impairment of the muscle cell structure, since we observed a significant positive correlation between increased plasma creatine kinase activity and both oxidized dichlorofluoresceine and lipid peroxidation levels in muscle and blood. The intensity of the inflammatory response appears also to be an important factor in the genesis of oxidative damage immediately following a muscle strain injury. Therapeutic cold seems to be more effective in preventing the damage induced by a strain injury, possibly due to its capacity to control the impairment of muscle cell structure and to modulate the intensity of the inflammatory response that follows a muscle strain injury.
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Affiliation(s)
- Nélson Carvalho
- Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
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Gubert P, Ávila DS, Bridi JC, Saurin S, Lugokenski TH, Villarinho JG, Fachinetto R, Pereira ME, Ferreira J, da Rocha JBT, Soares FAA. Low concentrations of methamidophos do not alter AChE activity but modulate neurotransmitters uptake in hippocampus and striatum in vitro. Life Sci 2011; 88:89-95. [DOI: 10.1016/j.lfs.2010.10.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2010] [Revised: 09/25/2010] [Accepted: 10/26/2010] [Indexed: 11/24/2022]
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Avila DS, Colle D, Gubert P, Palma AS, Puntel G, Manarin F, Noremberg S, Nascimento PC, Aschner M, Rocha JBT, Soares FAA. A possible neuroprotective action of a vinylic telluride against Mn-induced neurotoxicity. Toxicol Sci 2010; 115:194-201. [PMID: 20133376 DOI: 10.1093/toxsci/kfq036] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Manganese (Mn) is a metal required by biological systems. However, environmental or occupational exposure to high levels of Mn can produce a neurological disorder called manganism, which has similarities to Parkinson's disease. Diethyl-2-phenyl-2-tellurophenyl vinylphosphonate (DPTVP) is an organotellurium compound with a high antioxidant activity, especially in the brain. The present study was designed to investigate the effects of long-term low-dose exposure to Mn in drinking water on behavioral and biochemical parameters in rats and to determine the effectiveness of vinylic telluride in attenuating the effects of Mn. After 4 months of treatment with MnCl(2) (13.7 mg/kg), rats exhibited clear signs of neurobehavioral toxicity, including a decrease in the number of rearings in the open field and altered motor performance in rotarod. The administration of DPTVP (0.150 micromol/kg, ip, 2 weeks) improved the motor performance of Mn-treated rats, indicating that the compound could be reverting Mn neurotoxicity. Ex vivo, we observed that Mn concentrations in the Mn-treated group were highest in the striatum, consistent with a statistically significant decrease in mitochondrial viability and [(3)H]glutamate uptake, and increased lipid peroxidation. Mn levels in the hippocampus and cortex were indistinguishable from controls, and no significant differences were noted in the ex vivo assays in these areas. Treatment with DPTVP fully reversed the biochemical parameters altered by Mn. Furthermore, DPTVP treatment was also associated with a reduction in striatal Mn levels. Our results demonstrate that DPTVP has neuroprotective activity against Mn-induced neurotoxicity, which may be attributed to its antioxidant activity and/or its effect on striatal Mn transport.
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Affiliation(s)
- Daiana S Avila
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
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Puntel GO, de Carvalho NR, Gubert P, Palma AS, Corte CLD, Ávila DS, Pereira ME, Carratu VS, Bresolin L, da Rocha JBT, Soares FAA. Butane-2,3-dionethiosemicarbazone: An oxime with antioxidant properties. Chem Biol Interact 2009; 177:153-60. [DOI: 10.1016/j.cbi.2008.09.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2008] [Revised: 09/23/2008] [Accepted: 09/25/2008] [Indexed: 10/21/2022]
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Ávila DS, Gubert P, Palma A, Colle D, Alves D, Nogueira CW, Rocha JBT, Soares FAA. An organotellurium compound with antioxidant activity against excitotoxic agents without neurotoxic effects in brain of rats. Brain Res Bull 2008; 76:114-23. [DOI: 10.1016/j.brainresbull.2007.12.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Revised: 12/10/2007] [Accepted: 12/14/2007] [Indexed: 10/22/2022]
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Avila DS, Gubert P, Dalla Corte CL, Alves D, Nogueira CW, Rocha JBT, Soares FAA. A biochemical and toxicological study with diethyl 2-phenyl-2-tellurophenyl vinylphosphonate in a sub-chronic intraperitoneal treatment in mice. Life Sci 2007; 80:1865-72. [PMID: 17383683 DOI: 10.1016/j.lfs.2007.02.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [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: 11/24/2006] [Revised: 02/06/2007] [Accepted: 02/15/2007] [Indexed: 11/25/2022]
Abstract
Diethyl-2-phenyl-2-tellurophenyl vinylphosphonate (DPTVP) is an organotellurium compound with low toxicity after subcutaneous administration in mice. This study evaluated possible in vivo and ex vivo toxicological effects of daily injections of DPTVP for 12 days in mice, using the intraperitoneal administration. This route potentially increases the pharmacokinetics of absorption, distribution, metabolism and toxicity of DPTVP. Treatment with DPTVP (0, 30, 50, 75, 100, 250, 350 or 500 micromol/kg) were not associated with mortality or body weight loss. Nevertheless, the liver and liver-to-body weight ratio increased in groups treated with 350 and 500 micromol/kg of DPTVP. However, plasmatic aspartate and alanine aminotransferase activities (classical markers of hepatotoxicity) were not increased after diethyl-2-phenyl-2-tellurophenyl vinylphosphonate administration. Hepatic, renal and cerebral thiobarbituric acid reactive substances (TBARS), delta-ALA-D activity and Vitamin C levels were not modified after DPTVP treatment. Renal and hepatic superoxide dismutase (SOD) and catalase (CAT) were unchanged after DPTVP treatment. Conversely, SOD activity significantly increased in brain in groups treated with 50, 75, 100 and 500 micromol/kg of DPTVP treated groups. Our findings corroborates that brain is a potential target for organochalcogen action. The absence of severe overt signs of toxicity after sub-chronic exposure to DPTVP reinforces the necessity for more detailed pharmacological studies concerning this new organotellurium compound.
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Affiliation(s)
- Daiana Silva Avila
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, RS, Brazil
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