Traces of the chemical are often found in mouse and human urine, leading scientists to wonder whether the drug is being made naturally or being delivered by something the subjects consumed.

在老鼠和人的尿中经常可发现这种化学品的痕迹，科学家们不知道这药物是自然产生的还是从实验对象使用的某种东西中带来的。

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The test usually employed for testosterone abuse relies on measuring the ratio of two chemicals found in the urine: testosterone glucuronide (TG) and epitestosterone glucuronide (EG).

针对睾酮使用的检测通常是基于测量尿样中所发现的两种化学成分的比例，即睾酮葡糖苷酸（TG）和表睾酮葡糖苷酸（EG）的比例。

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Other human bacteria, including some linked with the mouth, gut and urine were also found on all surfaces.

其它一些人体细菌，包括某些口腔细菌、肠道和尿路细菌也在所有表面上都有检出。

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People with Rett syndrome withdraw socially and recently scientists have found that up to 75% of patients are so anxious that a stress hormone called cortisol can be found in their urine.

ECONOMIST: Neuroscience (1)

The three-member state board cited infractions including syringes containing an analgesic and sedative found in Dutrow's desk and an analgesic found in the urine of his horse Fastus Cactus in November 2010 after it won at Aqueduct Racetrack.

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Heller wrote in a motion filed last week that officers found a bottle that they initially thought was urine, but might have contained wine.

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