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Endothelium-Dependent Vasorelaxant Effect of Prunus Persica Branch on Isolated Rat Thoracic Aorta

机译:李属分支的内皮依赖性血管舒张作用对离体大鼠胸主动脉的影响

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摘要

Peach (Prunus persica (L.) Batsch) is a popular fruit consumed by people worldwide, owing to its pleasant flavor and high mineral nutrient content. A few plants from the genus Prunus, such as Prunus yedoensis, Prunus cerasus, and Prunus serotina have shown vasorelaxant and vasodilatory effects, to date, no study has investigated the vasorelaxation effects of the P. persica branch extract (PPE). The vasorelaxant effect of PPE was endothelium-dependent, and it was related to the NO-sGC-cGMP, vascular prostacyclin, and muscarinic receptor transduction pathway. K+ channels, such as the BKCa, KV, and KATP channels, were partially associated with PPE-induced vasorelaxation. PPE was effective in relaxing serotonin (5-HT)- or angiotensin II-induced contraction; furthermore, PPE attenuated Ca2+-induced vasoconstriction by IP3 receptors in the SR membrane, but its vasorelaxant effect was not associated with the influx of extracellular Ca2+ via receptor-operative Ca2+ channels or voltage-dependent Ca2+ channels. Recognizing the rising use of functional foods for hypertension treatment, our findings imply that PPE may be a natural antihypertensive agent.
机译:桃(Prunus persica(L.)Batsch)因其令人愉悦的风味和高矿质营养成分而被世界各地的人们广泛使用。李属(Prunus yedoensis),李属李(Prunus cerasus)和李子李(Prunus serotina)等一些李属植物显示出血管舒张作用和血管舒张作用,迄今为止,尚无研究研究波斯菊分支提取物(PPE)的血管舒张作用。 PPE的血管舒张作用是内皮依赖性的,并且与NO-sGC-cGMP,血管前列环素和毒蕈碱受体转导途径有关。 K + 通道,例如BKCa,KV和KATP通道,部分与PPE引起的血管舒张相关。 PPE可有效缓解5-羟色胺(5-HT)-或血管紧张素II引起的收缩。此外,PPE通过SR膜IP3受体减弱了Ca 2 + 诱导的血管收缩,但其血管舒张作用与细胞外Ca 2 + 通过受体的流入无关。 Ca 2 + 通道或电压依赖性Ca 2 + 通道。认识到功能性食品在高血压治疗中的使用正在增加,我们的发现暗示PPE可能是天然的抗高血压药。

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