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第 7 章 抗胆碱酯酶药和 胆碱酯酶复活药. 抗 ChE 药作用原理: ChE 为 Ach 水解必需的酶 抗 ChE 药与它结合并使之失活 导致 Ach 在突触间隙大量蓄积 产生拟胆碱作用. 抗胆碱酯酶药 易逆性抗胆碱酯酶药: 新斯的明等 抗胆碱酯酶药 难逆性抗胆碱酯酶药: 有机磷酸酯类药. 常用易逆性抗胆碱酯酶药. - PowerPoint PPT Presentation
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7
(cholinesterase,ChE) ( AChE)ChE
ChEChEAchChEAch
, , , ,
(neostigmine)
AChE.
1.2.
[]
1.2.3.
AchEAchMNN2Ach
1.2., 3.4.
MN, ,
(6~8h)
1.,,2.
AchEAchAchM
1.AchE5~15min 2.
(edrophonium choride)
2mg30~45 8mg ()
() ambenonium chloride AchE
(galanthamine) ()
(demecarium bromide) AchE15~60min24h19
DDVPSarin, Tabun
ChEChEAch,,.
aging:
AchE,,AchE,Ach,.
MNN+
M,,,,,,
N,,,
AChE
.
: + : ,
1. 2. NS2% NaHCO33.
1. ,,2. ,3.
cholinesterase reactivatorsPAM PAM-Cl
PAM
(Oxime), , :ChEPAM
ChE,
N>>>>M > , >>>
1., , , 2.
M N.
+ +..
1.,,2.,,im