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da Silva Tonetto L, da Silva CCF, Gonzatti N, Guex CG, Hartmann DD, Boschi ES, Lago PD, Trevisan ME, de Freitas Bauermann L, Jaenisch RB. Effects of photobiomodulation on oxidative stress in rats with type 2 diabetes mellitus. Lasers Med Sci 2023; 38:90. [PMID: 36947266 DOI: 10.1007/s10103-023-03745-x] [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: 01/26/2022] [Accepted: 02/18/2023] [Indexed: 03/23/2023]
Abstract
The present study aimed to evaluate photobiomodulation effects on oxidative stress in type 2 diabetes mellitus (DM2). Thirty-one male Wistar rats were used and divided into 4 groups: group 1 - animals without diabetes mellitus 2 without laser 21 J/cm2 (C-SHAM), group 2 - animals with diabetes mellitus 2 without laser 21 J/cm2 (C-DM2), group 3 - animals without diabetes mellitus 2 with laser 21 J/cm2 (L-SHAM), group 4 - animals with diabetes mellitus 2 with laser 21 J/cm2 (L-DM2). The protocol was performed 5 days/week, for 6 weeks. The animals that received photobiomodulation had one dose irradiated at two spots in the right gastrocnemius muscle. Twenty-four hours after the last intervention, the animals were euthanized. Heart, diaphragm, liver, right gastrocnemius, plasma, kidneys, weighed, and stored for further analysis. In rats with DM2, photobiomodulation promoted a decrease in thiobarbituric acid reactive substance assay (TBARS) in plasma levels. On the other hand, photobiomodulation demonstrated an increase in non-protein thiol levels (NPSH) in the heart, diaphragm and gastrocnemius. Moreover, photobiomodulation produced in the heart, diaphragm and plasma levels led to an increase in superoxide dismutase (SOD). Interestingly, photobiomodulation was able to increase superoxide dismutase in rats without DM2 in the heart, diaphragm, gastrocnemius and kidneys. These findings suggested that 6 weeks of photobiomodulation in rats with DM2 promoted beneficial adaptations in oxidative stress, with a decrease in parameters of oxidant activity and an increase in antioxidant activity.
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Affiliation(s)
- Larissa da Silva Tonetto
- Department of Physiotherapy and Rehabilitation, Postgraduate Program in Movement and Rehabilitation Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | - Carlos Cassiano Figueiró da Silva
- Department of Physiotherapy and Rehabilitation, Postgraduate Program in Movement and Rehabilitation Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | - Nubia Gonzatti
- Department of Physiotherapy and Rehabilitation, Postgraduate Program in Movement and Rehabilitation Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | - Camille Gaube Guex
- Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Diane Duarte Hartmann
- Department of Biochemical Sciences, Postgraduate Program in Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Emerson Soldateli Boschi
- Department of Physiotherapy, Pontifical Catholic University of Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Pedro Dal Lago
- Department of Physiotherapy, Federal University of Health Sciences, Porto Alegre, RS, Brazil
| | - Maria Elaine Trevisan
- Department of Physiotherapy and Rehabilitation, Postgraduate Program in Movement and Rehabilitation Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | | | - Rodrigo Boemo Jaenisch
- Department of Physiotherapy and Rehabilitation, Postgraduate Program in Movement and Rehabilitation Sciences, Federal University of Santa Maria, Santa Maria, Brazil.
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Gonzatti N, Castagna L, Carvalho MTX, Santos TDD, Cardoso DM, Callegaro CC, Albuquerque IMD. Estimulação elétrica funcional associada ao treinamento combinado pós-CRM: ensaio clínico randomizado. Fisioter Pesqui 2021. [DOI: 10.1590/1809-2950/20031628012021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RESUMO Os efeitos da adição da estimulação elétrica funcional (EEF) ao treinamento aeróbico e resistido (treino combinado) de curto prazo em pacientes submetidos à cirurgia de revascularização do miocárdio (CRM) ainda não foram estabelecidos. O objetivo do presente estudo é avaliar o impacto da adição da EEF ao treino combinado no fluxo arterial periférico, na capacidade funcional e na qualidade de vida de pacientes pós-CRM participantes de um programa de reabilitação cardíaca - Fase II. Trata-se de um ensaio clínico randomizado, duplo cego, composto por 17 pacientes (54,8±10,5 anos, 12 homens) randomizados ou em grupo intervenção (GI, n=8,) submetido à EEF no músculo quadríceps associada ao treino combinado, ou em grupo sham (GS, n=9), que realizou a EEF sham em associação ao treino combinado. Os desfechos avaliados foram: fluxo arterial periférico (índice tornozelo-braquial), capacidade funcional (distância percorrida no teste de caminhada de seis minutos - DTC6M) e qualidade de vida (questionário MacNew). Na comparação entre os grupos, o aumento do índice tornozelo-braquial (GI: 0,14±0,08 mmHg vs. GC: 0,05±0,04 mmHg; p=0,020) e do escore do domínio global do questionário MacNew (GI: 1,1±0,3 pontos vs. GC: 0,6±0,4 pontos; p=0,020) foi maior no GI. Entretanto, não foi observada diferença entre os grupos para a DTC6M (GI: 130,9±73,7 m vs. GS: 73,7±32,6 m; p=0,072). A adição da EEF, durante curto período, potencializou os efeitos do exercício aeróbico e resistido sobre o fluxo arterial periférico e a qualidade de vida em pacientes pós CRM em Fase II da reabilitação cardíaca.
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