Bayrami Goltaj, Boskabady Mohammad Hossein, Iranshahi Mehrdad, Gholamnezhad Zahra
Department of Physiology and Pharmaceutical Research Centre, School of Medicine, Mashhad University of Medical Sciences, Mashhad, 9177948564, Iran.
Chin J Integr Med. 2013 Dec 12. doi: 10.1007/s11655-013-1550-3.
To investigate the relaxant effects of the asafoetida (Ferula Asafoetida Oleo-Gum-Resin) and its coumarin constituent umbelliprenin on tracheal chains of guinea pigs.
The relaxant effects of three cumulative concentrations of the aqueous extract (2, 5 and 10 mg/mL), umbelliprenin (0.04, 0.2 and 0.4 mg/mL), theophylline (0.05, 0.1 and 0.15 mg/mL) and saline were examined by their relaxant effects on precontracted tracheal chains of guinea pig by 60 mmol/L KCl (group 1), and 10 μ mol/L methacholine (group 2).
In group 1 all concentrations of theophylline and the highest concentration of the extract showed signififi cant relaxant effects compared with that of saline (P<0.01 for theophylline and P<0.05 for extract). In group 2, relaxant effects of all concentrations of theophylline, extract and two higher concentrations of umbelliprenin differed significantly compared with saline [P<0.01 for all cases except low concentration of umbelliprenin (0.04 mg/mL)]. There were no signififi cant differences between relaxant effects of the extract and theophylline in group 2. The relaxant effect of the extract in group 2 was signififi cantly greater than that of group 1 (P<0.01). The relaxant effect of the extract was significantly more potent than umbelliprenin in all groups (P<0.05 or P<0.01).
These results showed a potent relaxant effect for the asafoetida extract on tracheal smooth muscle which is, at least, in part, due to its constituent umbelliprenin. A muscarinic receptor blockade was also suggested for the extract.
研究阿魏(阿魏油胶树脂)及其香豆素成分伞形前胡素对豚鼠气管链的舒张作用。
通过观察三种累积浓度的水提取物(2、5和10mg/mL)、伞形前胡素(0.04、0.2和0.4mg/mL)、茶碱(0.05、0.1和0.15mg/mL)和生理盐水对60mmol/L氯化钾预收缩的豚鼠气管链(第1组)和10μmol/L乙酰甲胆碱预收缩的豚鼠气管链(第2组)的舒张作用,来检测它们的舒张效果。
在第1组中,与生理盐水相比,所有浓度的茶碱和最高浓度的提取物均显示出显著的舒张作用(茶碱P<0.01,提取物P<0.05)。在第2组中,与生理盐水相比,所有浓度的茶碱、提取物和两种较高浓度的伞形前胡素的舒张作用均有显著差异[除低浓度伞形前胡素(0.04mg/mL)外,所有情况P<0.01]。第2组中提取物和茶碱的舒张作用之间无显著差异。第2组中提取物的舒张作用显著大于第1组(P<0.01)。在所有组中,提取物的舒张作用均显著强于伞形前胡素(P<0.05或P<0.01)。
这些结果表明阿魏提取物对气管平滑肌有强大的舒张作用,这至少部分归因于其成分伞形前胡素。还提示该提取物存在毒蕈碱受体阻断作用。