英语语法分析

Purpose: To study propolis extract antitumor effect and its lowering of the toxicity caused by chemotherapeutant.

摘 要： 目的：探讨蜂胶提取物抗肿瘤及减轻化疗药物毒性的作用。

Objective To study the sensitivity coefficient of human stomach cancer and esophagus cancer to chemotherapeutants and provide reference for doctor screening the effective chemotherapeutant.

目的研究胃癌、食管癌细胞对常用化疗药物的敏感率，为临床选择有效的化疗药物提供参考。

Methods: Kunming mice transplanted with S180 sarcoma were used to study the inhibition effect of propolis extract on tumor, and its lowering of toxicity caused by synergy with chemotherapeutant.

方法：通过整体动物实验，将昆明小鼠移植s180肉瘤，观察蜂胶提取物抑制肿瘤作用及与化疗药物合用时的协同及减毒作用。