Aim To reval the virulence variation related to vacuolating cytotoxicity of coccoid Helicobacter pylori.

目的指示球形幽门螺杆菌致细胞空泡变性毒力的变异情况。

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OBJECTIVE to explore whether the coccoid formed by Bifidobacterium under the unfavorable conditions belongs to the bacterial cryptic growth cells.

目的探讨双歧杆菌属在不利条件下形成的球形体，是否为细菌潜生体的一种形式。

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Objective:To understand the effect of coccoid Helicobacter pylori on proliferation of gastric carcinoma epithelial line SGC-7901 cultured in vitro.

目的：了解球形幽门螺杆菌对体外培养细胞增殖的影响。

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Objective:To understand the effect of coccoid Helicobacter pylori on proliferation of gastric carcinoma epithelial line SGC-7901 cultured in vitro.

目的：了解球形幽门螺杆菌对体外培养细胞增殖的影响。

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