Binding activity of Valeriana fauriei root extract on GABAA receptor flunitrazepam sites and distribution of its active ingredients in the brain of mice – A comparison with that of V. officinalis root
valerenic acid and five other compounds were associated with the binding affinity on flunitrazepam sites of GABAA receptor. On emulsifying the VF extract with a fat-soluble glycerin fatty acidester, the plasma and brain distributions of KGD tended to be higher, those of KG8 were significantly more than 10-times higher, and those of α-KA was lower than those of the VF extract emulsified with water-soluble
time-lapse cell imaging. Although the isolated compounds did not affect the number of mitotic entry cells and dead cells alone, kessyl glycol, kessyl glycol diacetate, and iso-teucladiol significantly increased the number of dead cells on ADR treated human cervical cancer cells. One of the mechanisms of cell death-inducing activity for the kessyl glycol acetate was suggested to be the inhibition of heat-shock
已从缬草根茎和根的甲醇提取物中分离出三种新的倍半萜、缬草萜 I-III 和八种已知化合物。基于化学和光谱证据阐明了三种新倍半萜的化学结构。缬草萜 I 的绝对立体化学是使用 X 射线晶体学确定的。通过延时细胞成像观察分离的化合物单独或与阿霉素 (ADR) 组合的细胞死亡诱导活性。尽管分离的化合物不会单独影响有丝分裂进入细胞和死细胞的数量,但凯舒乙二醇、凯舒乙二醇二乙酸酯和异-teucladiol 显着增加了 ADR 处理的人类宫颈癌细胞上的死细胞数量。凯西乙二醇乙酸酯诱导细胞死亡的机制之一被认为是抑制热休克蛋白 105 (Hsp105) 表达水平。本文首先处理作为 Hsp105 抑制剂的天然化合物。