Abstract
Background
Despite the vulnerability of pulmonary tissue to diabetic conditions, there are few reports related to the detrimental effects of hyperglycemia and therapeutic modalities on lung parenchyma. Here, the apoptotic changes were monitored in the diabetic pulmonary tissue of mice (DM1) subjected to a four‒week swimming plan.
Methods
The mice were randomly allocated into Control; Control + Swimming (S); Diabetic group (D); and Diabetic + Swimming (D + S) groups (each in 8 mice). In the D and D + S groups, mice received intraperitoneally 50 mg/kg of streptozotocin (STZ). After 14 days, swimming exercise was done for four weeks. The expression of il-1β, bcl-2, bax, and caspase-3 was investigated using real-time PCR analysis. A histological examination was performed using H&E staining.
Results
DM1 significantly upregulated il-1β, bax, and caspase-3, and down-regulated bcl-2 compared to the non-diabetic mice (p < 0.05). We noted that swimming exercises reversed the expression pattern of all genes in the diabetic mice and closed to basal levels (p < 0.05). Data indicated that swimming exercise could diminish emphysematous changes, and interstitial pneumonitis induced by STZ. Along with these changes, swimming exercise had protective effects to reduce the thickness of the inter-alveolar septum and mean alveolar area in diabetic mice.
Conclusion
These data demonstrated that swimming exercises could decrease DM1-related pathologies in mouse lungs by regulating apoptosis and inflammatory response.
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Data Availability
The datasets generated during and/or analyzed during the current study are available from the corresponding author upon reasonable request.
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Acknowledgements
The authors thank the personnel of Molecular Medicine Research Center for help and guidance.
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This work was supported by a grant from Molecular Medicine Research Center of Tabriz University of Medical Sciences (IR.TBZMED.VCR.REC.1399.005).
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N.A., A. R., F.M.B., R.R., A.G.N., J.R., and A.D. performed all analyses and prepared draft. M. A. supervised the study.
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This study was approved by the Local Ethics Committee of Tabriz University of Medical Sciences (IR.TBZMED.VCR.REC.1399.005).
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Azizi, N., Rahbarghazi, A., Bavil, F.M. et al. Swimming training reduced inflammation and apoptotic changes in pulmonary tissue in type 1 diabetic mice. J Diabetes Metab Disord 22, 793–800 (2023). https://doi.org/10.1007/s40200-023-01202-8
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DOI: https://doi.org/10.1007/s40200-023-01202-8