Brezenoff H E, Rusin J
Br J Pharmacol. 1974 Jun;51(2):301-3. doi: 10.1111/j.1476-5381.1974.tb09660.x.
The pressor response to intracerebroventricular (i.c.v.) injections of neostigmine was examined in three groups of Sprague-Dawley rats (MFS, CS and CFE) obtained from different breeders and in Long-Evans rats (MLE) obtained from one of the same breeders. All rats responded with a rise in blood pressure to i.c.v. injection of neostigmine, although the CFE strain was 6-fold less sensitive to the drug than were the other strains.Prior i.c.v. injection of hemicholinium-3 (HC-3; 0.4 mug) reduced by more than 50% the pressor response in the two strains obtained from the same breeder (MFS and MLE) and caused an 1 1% reduction in the CS strain. In contrast, the pressor response in CFE rats was not affected by as much as 40mug of HC-3, although this dose decreased the response to neostigmine by 47-66% in the other three strains.
对从不同饲养者处获得的三组斯普拉格-道利大鼠(MFS、CS和CFE)以及从同一饲养者之一处获得的长-伊文斯大鼠(MLE),检测了脑室内(i.c.v.)注射新斯的明后的升压反应。所有大鼠对i.c.v.注射新斯的明均有血压升高反应,尽管CFE品系对该药物的敏感性比其他品系低6倍。预先i.c.v.注射3-羟基毒扁豆碱(HC-3;0.4微克)使来自同一饲养者的两个品系(MFS和MLE)的升压反应降低了50%以上,并使CS品系的升压反应降低了11%。相比之下,CFE大鼠的升压反应不受高达40微克HC-3的影响,尽管该剂量使其他三个品系对新斯的明的反应降低了47%-66%。