STEP 1 Consider switching from migraine medicine with valproic acid, which can make you eat more, to other migraine medicines that are less likely to increase your appetite, such as sumatriptan.

考虑代替含有酸成分的偏头痛药物，这种药物会让你吃得更多，改为不会增加食欲的偏头痛药物，例如舒马曲坦。

Some were exposed to valproic acid, a drug used to treat bipolar disorder and migraines that is known to induce autism in fetuses.

一些是被暴露于酸中，这种药物被用于治疗躁郁症和偏头痛，已知这种疾病会发胎儿的孤独症。

Isovaleric acid smells kind of like cheese, and it's the same chemical that makes your sweaty feet smell.

异酸闻起来像奶酪，它也是让你有臭脚味的化学物质。

Here, patients have a genetic mutation that leads to a deficiency in an enzyme called isovaleric co-enzyme A dehydrogenase.

由于患者基因突变会导致缺乏一种酶，被称为——异酸辅酶A脱氢酶。

And the compound that's left over from this process, an acid called isovaleric acid, starts to build up.

未分解的部分叫做异酸，累下来。

But while isovaleric acid isn't exactly pleasant to smell outside your body, it can be downright damaging to the inside.

然而这种异酸让人很不愉快，它能够彻底的损害身体内部。

There is, so far, no cure for isovaleric acidemia, but some treatments — like avoiding foods rich in leucine, and taking supplements of other, non-threatening amino acids — can help keep patients safe.

目前没有治疗异酸血症的方法，但是一些疗法——比如避免进食白氨酸过多的食物，从其他物质中，比如没有威胁的氨基酸，能够保证患者安全。

It's not exactly clear why, but a build-up of isovaleric acid tends to have the most dramatic effects on the central nervous system.

现在还不清楚原因，但异酸的累往往会对中枢神经系统产生剧烈的影响。

When they analyzed these they found that the autistic animals were deficient in touring and five amino valeric acid.

当他们分析这些数据时，发现自闭症动物体内巡回物质和五种氨基酸酸不足。