These inhibitory actions of isoflurane were not mediated by KATPchannels.是什么意思？

These inhibitory actions of isoflurane were not mediated by KATPchannels.

这些作用可能参与了异氟醚在体内的心脏保护作用,但异氟醚的这些有益作用并非由ATP钾通道介导.

these

adj. 这些的；pron. 这些；

例句
There's lots of money about these days for schemes like this.
近来这类计划资金充足。

inhibitory

adj. 禁止的，抑制的；

例句
Objective : To study the inhibitory effect of ampelopsis on melanoma.
摘要:目的: 研究蛇葡萄素对黑色素瘤的抑制作用.

actions

n. action，行动( action的名词复数 )，作用，动作，积极的活动；

例句
Jack was the sort of man who did not like his actions questioned.
杰克是那种不喜欢别人质疑自己行为的人。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

isoflurane

异氟醚；

例句
These patients may also benefit froma volatile anesthetic such as isoflurane that effectively bronchodilator the airways.
这些病人也可能使用吸入性麻醉剂,异氟烷可以有效的扩张气道.

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

not

adv. 不，[用以表示否定、否认、拒绝、禁止等]不是，几乎不，未必，没有[用于否定后面的词或短语]；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

mediated

v. 调停，调解，斡旋( mediate的过去式和过去分词 )，居间促成，影响…的发生，使…可能发生；

例句
My mom was the one who mediated between Zelda and her mom...
我妈妈充当了泽尔达和她妈妈之间的调解人。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品