Two l-nucleosides, l-3′-amino-3′-deoxy-N6-dimethyladenosine (l-3′-ADMdA) 1, previously synthesized in our laboratory, and the novel l-3′-amino-3′-deoxy-N6-methyladenosine-5′-N-methyluronamide (l-3′-AM-MECA) 2 were evaluated in an ischemia/reperfusion model on Langendorff perfused mouse heart. l-3′-ADMdA 1 was found to enhance functional recovery from ischemia (32.2 ± 3.7 cm H2O/s % rate pressure product
两个l -核苷,l -3'-
AMino-3'- deoxy - N 6 -二甲基
腺苷( l -3'-A
DMdA) 1,先前在我们的实验室合成,以及新的l -3'-
AMino-3'-脱氧ñ 6 -methyladenosine -5'- ñ -methyluron
AMide(升-3'-
AM-M
ECA)2在缺血/再灌注模型进行了评价上的Langendorff灌注小鼠心脏。发现l -3'-A
DMdA 1可增强缺血的功能恢复 (32.2 ± 3.7 cm H 2O/s % 速率压力产品,与对照的 21.3 ± 1.4 和
腺苷的 30.7 ± 3.4 相比,增加了缺血性挛缩的发生时间(14.5 ± 0.9 分钟,相比之下,对照的 10.5 ± 1.0 分钟和 13.6 ± 0.6 分钟(
腺苷)与
腺苷相当。与功能恢复数据一致,在1例中观察到梗塞面积减少(19.1 ± 8.4,相比之下,对照组为 40