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Neuroprotective effect of quercetin in ectoenzymes and acetylcholinesterase activities in cerebral cortex synaptosomes of cadmium-exposed rats

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Abstract

This study investigated the effect of quercetin on nucleoside triphosphate diphosphohydrolase (NTPDase), 5′-nucleotidase, adenosine deaminase (ADA), and acetylcholinesterase (AChE) activities in synaptosomes from cerebral cortex of adult rats exposed to cadmium (Cd). Rats were exposed to Cd (2.5 mg/Kg) and quercetin (5, 25 or 50 mg/Kg) by gavage for 45 days. Rats were randomly divided into eight groups (n = 8–10): saline/ethanol, saline/Querc 5 mg/kg, saline/Querc 25 mg/kg, saline/Querc 50 mg/kg, Cd/ethanol, Cd/Querc 5 mg/kg, Cd/Querc 25 mg/kg, and Cd/Querc 50 mg/kg. Results demonstrated that AChE activity increased in the Cd/ethanol group when compared to saline/ethanol group. Treatment with quercetin prevented the increase in AChE activity when compared to Cd/ethanol group. Quercetin treatment prevented the cadmium-induced increase in NTPDase, 5-nucleotidase, and ADA activities in Cd/ethanol group when compared to saline/ethanol group. Our data showed that quercetin have a protector effect against Cd intoxication. This way, is a promising candidate among the flavonoids to be investigated as a therapeutic agent to attenuate neurological disorders associated with Cd intoxication.

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Acknowledgments

The authors wish to thank Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (FAPERGS), Coordenação e Aperfeiçoamento de Pessoal de Nível Superior (CAPES) and the Federal University of Santa Maria, RS, Brazil, and the FINEP research grant “Rede Instituto Brasileiro de Neurociências (IBNet)”.

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The authors declare that there are no conflicts of interest.

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Authors and Affiliations

  1. Post-Graduation Program in Toxicological Biochemistry, Department of Chemistry, Center of Natural Exact Sciences, Federal University of Santa Maria, Av. Roraima, Santa Maria, RS, 97105-900, Brazil

    Fátima Husein Abdalla, Andréia Machado Cardoso, Luciane Belmonte Pereira, Roberta Schmatz, Naiara Stefanello, Amanda Maino Fiorenza, Jessié Martins Gutierres, Jonas Daci da Silva Serres, Daniela Zanini, Victor Camera Pimentel, Juliano Marchi Vieira, Maria Rosa Chitolina Schetinger & Vera Maria Morsch

  2. Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil

    Jamile Fabbrin Gonçalves

  3. Department of Small Animal Clinic, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil

    Cinthia Melazzo Mazzanti

  4. Department of Veterinary Pathology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil

    Cinthia Melazzo Mazzanti

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  1. Fátima Husein Abdalla
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  2. Andréia Machado Cardoso
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Correspondence to Fátima Husein Abdalla or Cinthia Melazzo Mazzanti.

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Abdalla, F.H., Cardoso, A.M., Pereira, L.B. et al. Neuroprotective effect of quercetin in ectoenzymes and acetylcholinesterase activities in cerebral cortex synaptosomes of cadmium-exposed rats. Mol Cell Biochem 381, 1–8 (2013). https://doi.org/10.1007/s11010-013-1659-x

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