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                  哺乳动物细胞中不存在尿不能有任何事情素酶,而幽门螺杆菌(Hp)可以产生↑高活性尿素酶。由于人胃中尚未发现有其他种类的◤细菌,因此人胃内存在 心中凝神尿素酶就是感染幽门螺杆菌(Hp)的证据。

                  受检者服用经13C/14C标记的尿素,幽门螺杆菌敘述妖仙一脈分泌的尿素酶会将此尿素分解、产生带13C/14C标记的二氧化碳并经血〖液循环后从肺部呼出。采哈哈一笑用适当技术收集受检者呼出的二氧化碳气体并在高灵敏的仪器上进行检测,即可判断胃内有无感染幽门螺杆菌。