Experimental rats were intrathecally injected with carbenoxolone, a special gap junction blocker, and the control rats with the saline.

给实验大鼠鞘内注射羧苄索龙（一种特殊的间隙连接阻滞剂），向对照组大鼠注射生理盐水。

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Result Urine level of lead was significantly higher in rats with natural plant preparation than in control rats.

结果从驱铅开始至结束，驱铅实验组尿铅含量明显高于阳性对照组；

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Results The level of dopamine in striatum of addictive rats increased significantly than that of the control rats (P < 0.01).

结果成瘾大鼠纹状体多巴胺含量较正常对照组升高（P<0.01）。

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Control rats weren't treated.

WSJ: Protein in the Brain May Affect Adaptability

Introduced to control the rats that had arrived with sailors, they had instead chosen to prey on the vast colonies of sea birds that roosted on the lava plains, wiping them out.

ECONOMIST: Ascension Island

Even many pest-control experts haven't seen live rats.

WSJ: In Alberta, Citizens Smell a Rat After Long-Banned Rodents Appear