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1·As a purine nucleoside, inosine is an important product in food and medicine industry.

肌苷属于嘌呤核苷，是食品和医药行业广泛应用的重要产品。

2·Objective To study the effects E. coli purine nucleoside phosphorylase suicide gene on human gastric cancer MKN-45 cells as well as the bystander effect.

目的：探讨大肠杆菌嘌呤核苷磷酸化酶自杀基因对胃癌细胞MKN-45的抑制及杀伤作用，并证实旁观者效应。

3·The purine and pyrimidine may be complexed with a sugar to produce a nucleoside.

嘌呤和嘧啶可以同一个糖复合，产生一个核苷。