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首页> 外文期刊>Canadian Journal of Physiology and Pharmacology >The effect of moderate-intensity exercise on the expression of HO-1 mRNA and activity of HO in cardiac and vascular smooth muscle of spontaneously hypertensive rats
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The effect of moderate-intensity exercise on the expression of HO-1 mRNA and activity of HO in cardiac and vascular smooth muscle of spontaneously hypertensive rats

机译:中等强度运动对自发性高血压大鼠心肌和血管平滑肌HO-1 mRNA表达及HO活性的影响

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摘要

The objective of this study was to observe the effects of moderate-intensity training on the activity of heme oxygenase (HO) and expression of HO-1 mRNA in the aorta and the cardiac muscle of spontaneously hypertensive rats (SHRs). After 9 weeks of swimming exercise, the activity of HO and expression of HO-1 mRNA in the SHRs were measured. The resting blood pressure in the exercise group was increased by 1.7% (P > 0.05), whereas it was significantly elevated by 10.3% (P < 0.01) in the SHR rats. Compared with animals in the control and sedentary groups, the expression level of HO-1 mRNA of aorta and cardiac muscle in the exercise group was significantly enhanced (P < 0.01). The HO activity and the content of plasma carbon monoxide (CO) in the sedentary group were dramatically decreased (P < 0.05 and P < 0.01, respectively) compared with the control group. HO activity and content of plasma CO in the exercise group were significantly higher compared with those in the sedentary group (P < 0.05 and P < 0.01, respectively). The HO/CO metabolic pathway might be involved in the regulation of blood pressure of the SHR models.
机译:这项研究的目的是观察中等强度的训练对自发性高血压大鼠(SHRs)主动脉和心肌中血红素加氧酶(HO)活性和HO-1 mRNA表达的影响。游泳运动9周后,测量SHRs中HO的活性和HO-1 mRNA的表达。运动组的静息血压升高了1.7%(P> 0.05),而SHR大鼠则显着升高了10.3%(P <0.01)。与对照组和久坐组相比,运动组主动脉和心肌HO-1 mRNA的表达水平显着提高(P <0.01)。与对照组相比,久坐组的HO活性和血浆一氧化碳(CO)含量显着降低(分别为P <0.05和P <0.01)。运动组的HO活性和血浆CO含量明显高于久坐组(分别为P <0.05和P <0.01)。 HO / CO代谢途径可能与SHR模型的血压调节有关。

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