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构叶为桑科植物构树Broussoniapapyrifer(L)Vent的叶子,其煎剂及醇提物对麻醉犬及羊有显著的降压作用。为进一步分析构叶对心血管作用的性质,我们研究了构叶总黄酮甙(简称总甙,下同)对动物离体心脏及血管的作用。 实验所用动物由本院动物园提供;总甙由本室制备,定性分析表明,总甙中含有黄酮类、黄酮醇类或查耳酮类化合物,不含二氢黄酮类和花色素类成分;离子测定表明,所用总甙溶液(0.6％,pH6.8)中不含钾离子。
The leaf was a leaf of Broussonia papyrifer (L) Vent, which was decocted and ethanol extracts had a significant antihypertensive effect on anesthetized dogs and sheep. In order to further analyze the nature of the leaf formation on cardiovascular function, we studied the effect of total leaf flavonoids (ie, total glycosides, the same below) on isolated hearts and blood vessels in animals. The animals used in the experiment were provided by the zoo of the hospital; the total caries were prepared by the laboratory, and qualitative analysis showed that the total caries contained flavonoids, flavonols, or chalcone compounds, and did not contain dihydroflavonoids and anthocyanidins; ion determination. It shows that the total hydrazine solution used (0.6%, pH 6.8) does not contain potassium ions.