Recently, the FDA approved an enzyme designed to treat PKU.

最近，美国药物总局刚批准了设计来治疗 PKU 的酶。

Two FDA approved drugs are also available for the treatment of PKU.

两种美国FDA批准的药物现在也苯丙酮尿症的治疗。

Doctors found that Carol had an unusual disease called PKU. This caused her to have trouble learning.

医生发现卡罗尔得了一种叫苯酮尿症的不寻常的疾病。使她学习有困难。

So you may be familiar with PKUs, because all infants in the US are required to be tested for PKU.

你们也许对 PKU 挺熟悉的，因为在美国，所有婴儿都进行 PKU 检测。

An example of this is called phenylketonuria, or PKU for short.

方面的一个例子叫做苯丙酮尿症，简称 PKU。

However, new enzymes may soon enable PKU patients to eat whatever they want.

然而，新的酶能很快就能让 PKU 患者想吃什么就吃什么。

People with PKU are unable to properly metabolize or digest phenylalanine, which is one of the 20 common amino acids that we've been talking about.

患有 PKU 的人无法正确代谢或消化苯丙氨酸，苯丙氨酸是我们一直在谈论的 20 种常见氨基酸之一。

The consequence of ingesting phenylalanine for people with PKU is that they are subject to permanent intellectual disabilities, so it's a scary thing to have.

PKU患者摄入苯丙氨酸的后果是会出现永久性智力障碍，所以吃苯丙氨酸是一件很怕的事情。

So may be familiar with PKUs, because all infants in the US are required to be tested for PKU. I remember when Anthony, my son, had his heel pricked to test for it.

所以能对 PKU 很熟悉，因为在美国所有的婴儿都需进行 PKU 检测。 我记得当我儿子安东尼刺破脚后跟来测试它的时候。