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Oliveira-Silva JAD, Yamamoto JUP, Oliveira RBD, Monteiro VCL, Frangipani BJ, Kyosen SO, Martins AM, D'Almeida V. Oxidative stress assessment by glutathione peroxidase activity and glutathione levels in response to selenium supplementation in patients with Mucopolysaccharidosis I, II and VI. Genet Mol Biol 2019; 42:1-8. [PMID: 30776046 PMCID: PMC6428122 DOI: 10.1590/1678-4685-gmb-2017-0334] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 04/30/2018] [Indexed: 12/13/2022] Open
Abstract
We assessed levels of plasma selenium (Se), selenoproteins and their change after
Se supplementation in patients with mucopolysaccharidosis (MPS) types I, II and
VI. This was done in a retrospective study of the medical records of 30 patients
with MPS I (n=13), MPS II (n=9) and MPS VI (n=8) who were being treated with
enzyme replacement therapy. As part of routine nutritional monitoring, Se levels
were measured, revealing that 28 patients (93.3%) had values below the normal
range. Therefore, they received supplementation for 12 months, and Se was
measured after 6 and 12 months. Glutathione peroxidase (GPx) activity, total
glutathione (GSHt), oxidized glutathione (GSSG) and reduced glutathione (GSH)
were measured at baseline and 6 months after Se supplementation. The mean GSHt
at baseline was 7.90 ± 2.36 μmol/g Hb, and after Se supplementation it was 5.76
± 1.13 μmol/g Hb; GSH/GSSG was 2.3 ± 1.16 at baseline and 0.58 ± 0.38 after
supplementation. GPx activity was 16.46 ± 3.31 U/g Hb at baseline and 4.53 ±
4.92 U/g Hb after Se supplementation. The difference was shown to be
statistically significant by paired t-test. In conclusion, our
study demonstrated that oxidative stress parameters were altered by Se
supplementation in patients with MPS I, II and VI who were previously deficient
in Se.
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Affiliation(s)
- José Araújo de Oliveira-Silva
- Centro de Referência em Erros Inatos do Metabolismo (CREIM), Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Joyce Umbelino Pinto Yamamoto
- Laboratório de Erros Inatos do Metabolismo (LEIM), Departmento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Renata Bernardes de Oliveira
- Centro de Referência em Erros Inatos do Metabolismo (CREIM), Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | | | - Beatriz Jurkiewcz Frangipani
- Centro de Referência em Erros Inatos do Metabolismo (CREIM), Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Sandra Obikawa Kyosen
- Centro de Referência em Erros Inatos do Metabolismo (CREIM), Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Ana Maria Martins
- Centro de Referência em Erros Inatos do Metabolismo (CREIM), Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Vânia D'Almeida
- Laboratório de Erros Inatos do Metabolismo (LEIM), Departmento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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