ligusticum striatum/potassium

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Inhibitory effects of potassium channel blockers on tetramethylpyrazine-induced relaxation of rat aortic strip in vitro.

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Tetramethylpyrazine (TMP) is one of the active principles contained in Ligusticum chuanxiong Hort. (Umbelliferae), a herb that has been widely used to treat vascular disorders in China. In the present study, role of potassium channel in the vasodilatation of TMP was investigated using the effect of

Effect of tetramethylpyrazine on potassium channels to lower calcium concentration in cultured aortic smooth muscle cells.

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1. Tetramethylpyrazine (TMP) is one of the active principles contained in Ligusticum chuanxiong Hort. (Umbelliferae), a herb that has been used widely in China to treat vascular disorders. 2. In an attempt to elucidate the possible mechanisms of action of TMP, the effect of TMP on intracellular

Butylidenephthalide blocks potassium channels and enhances basal tension in isolated guinea-pig trachea.

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Butylidenephthalide (Bdph, 30~300 μM), a constituent of Ligusticum chuanxiong Hort., significantly enhanced tension in isolated guinea-pig trachea. In this study, we investigate the mechanism(s) of Bdph-induced contraction in the tissue. Isolated trachea was bathed in 5 mL of Krebs solution

Synergistic vasorelaxant and antihypertensive effects of Ligusticum wallichii and Angelica gigas.

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OBJECTIVE The synergistic vasorelaxant and antihypertensive effects of Ligusticum wallichii and Angelica gigas were examined in isolated rat aorta rings and spontaneously hypertensive rats (SHRs). METHODS The ethanol extract of Ligusticum wallichii (LwEx) or Angelica gigas (AgEx) or their

Relaxation effect of a novel Danshensu/tetramethylpyrazine derivative on rat mesenteric arteries.

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Danshen (Radix Salviae miltiorrhizae) and ChuanXiong (Ligusticum wallichii) are two traditional herbal medicines commonly used in China for the treatment of cardiovascular diseases. The active components in Danshen and ChuanXiong are Danshensu (DSS, (R)-3, 4-dihydroxyphenyllactic acid) and

Endothelium-independent vasorelaxation by Ligusticum wallichii in isolated rat aorta: comparison of a butanolic fraction and tetramethylpyrazine, the main active component of Ligusticum wallichii.

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Ligusticum wallichii is an herb widely used to treat vascular disorders in Asian countries, and tetramethylpyrazine (TMP) has been identified as one of its vasorelaxant active components. This study was performed to examine the endothelium-independent relaxation produced by the butanol-soluble

Endothelium-Independent Vasorelaxant Effect of Ligusticum jeholense Root and Rhizoma on Rat Thoracic Aorta.

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Ligusticum jeholense has been used as the traditional medicine 'Go-Bon' (Chinese name, Gao-ben) in China and Korea. Considering the increased use of medicinal herbs to treat hypertension, in this study, we aimed to investigate the mechanisms of the vasorelaxation effect caused by L. jeholense. We

Vasorelaxant and antihypertensive effects of Tianshu Capsule on rats: An in vitro and in vivo approach.

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Both Chuanxiong (Ligusticum chuanxiong Hort) and Tianma (Gastrodia elata Blume) have the effects of vasorelaxation and antihypertension. However, the effects of Tianshu Capsule (TSC, composed of Chuanxiong and Tianma in the mass ratio of 4:1) on antihypertensive activity have not been

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