阻断肾上腺素的这种正性肌力作用，减缓心率。
Beta blockers halt this process by blocking adrenaline receptors and slowing the heart rate.
结果提示三黄合剂具有扩张冠状动脉及正性肌力作用。
These results suggested that Sanhuang mixture had the potential to dilate coronary artery with positive inotropic effect on myocardium.
结果提示，本品有正性肌力作用，并能改善心脏泵功能。
Preliminary results indicated that WSEL increased ventricular contractile force and might increase cardiac pump function.
结论：含硫化合物引起的正性肌力作用可能与它的酶抑制作用有关。
CONCLUSION: The positive inotropic effect on cultured myocardial cell sheets induced by sulfur compounds may be correlated with its inhibition on enzyme.
XT对哇巴因的正性肌力作用及随后出现的心肌收缩力降低的毒性反应均有明显的对抗作用。
Furthermore, XT not only attenuated the positive inotropic action, but also delayed the following toxicity response induced by ouabain in the isolated left atria.
结论：大豆肽具有负性肌力作用，且能拮抗异丙肾上腺素对大鼠离体工作心脏的正性肌力作用。
Conclusion: Soy peptides have negative inotropic effect and can attenuate the positive inotropic effect of isoprenaline in isolated working rat hearts.
结论：无正性肌力作用的活血注射液与益气注射液对心梗后心衰大鼠左心室重构均有一定的抑制作用。
Conclusion: Both ABCI and RQI, though without positive myodynamia, showed certain inhibitory effect of left ventricular remodeling in rats with left heart failure after mi.
结论：无正性肌力作用的活血注射液与益气注射液对心梗后心衰大鼠左心室重构均有一定的抑制作用。
Conclusion: Both ABCI and RQI, though without positive myodynamia, showed certain inhibitory effect of left ventricular remodeling in rats with left heart failure after mi.
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