Evaluating the Effect of Vitamin C on Myocardial Angiogenesis Under Oxidative Stress Induced by Exhaustive Exercise in Rat

Pharmaceutical Sciences

Parivash Piraki¹  Ahmad Hemmatfar¹  Naser Behpour¹  Mohammad Ali Samavati Sharif² 

[1] Department of Physical Education-Exercise Physiology, Borujerd Branch, Islamic Azad University, Borujerd, Iran.;Faculty of Sport Sciences, Bu-Ali Sina University, Hamadan, Iran.;

关键词: Exercise Training;    Cardiac Function;    Oxidative Stress;    Ascorbic Acid;    Metalloproteinase 2;    Vascular Endothelial Growth Factor B;   

DOI  :  10.15171/PS.2018.40

来源: DOAJ

【 摘 要 】

Background: The main purpose of the present study was to assess the effects of exhaustive swimming with the consumption of a vitamin C supplement on indices of myocardial oxidative stress and gene expression related to angiogenesis. Methods: Wistar rats were randomly divided into six groups of normal (C), 100 and 200 mg/kg of vitamin C, (VC100 and VC200), exercise with 100 and 200 mg/kg of vitamin C (Ex+VC100 and Ex+VC200) and exercise without treatment (Ex). Finally, the serum activity of serum creatine phosphokinase (CK) and lactate dehydrogenase (LDH)and heart tissue oxidant/antioxidant parameters, besides gene expression of Vascular endothelial growth factor-B (VEGF-B), angiopoietin 1 (ANGPT-1) and matrix metalloproteinases 2 (MMP-2) was measured. Results: Significant increase in LDH level was seen in group Ex which was remarkably attenuated in group Ex+VC200 (p<0.001). The tissue oxidative stress was observed in group Ex where daily intake of vitamin C could remarkably regulate this property (p<0.01). Vitamin C could ameliorate significant upper gene expression of VEGF-B and MMP-2 remarkably (p<0.05).Conclusion: Oxidative condition in myocardial besides over expression of MMP-2, could be concluded as a detrimental condition resulting from exhaustive swimming that continued by the proteolytic release of CK and LDH from the muscle. Upper gene expression of VEGF-B and MMP-2 besides no changes of ANGPT-1 can be concluded as an early stage of angiogenesis. All these events were somehow attenuated by vitamin C which confirmed its beneficial effects as an antioxidant and the role of oxidation properties in the regulation of angiogenesis.

【 授权许可】

Unknown