Now, from a chemical perspective, caffeine can be described as both a methylxanthine and an alkaloid.

从化学角度来看，咖啡因既可以被描述为甲基黄呤，可以被描述为生物碱。

There are also medications that help to decrease uric acid levels, which include xanthine oxidase inhibitors like allopurinol.

有一些药物可以帮助降低尿酸量，包括黄呤氧化酶抑制剂，如。

Finally, there are some rare stones made of xanthine, which, just like uric acid, is a byproduct of purine breakdown.

最后，还有由黄呤形成的罕见结石，同尿酸一样，是呤分解的副产物。

But it is a stimulant called trimethylxanthine.

但它是一种叫做三甲基黄呤的刺激物。

Xanthine oxidase is an enzyme involved in the breakdown of purines to uric acid, so inhibiting this enzyme results in less uric acid production.

黄呤氧化酶负责分解呤为尿酸，所以抑制这个酶，就可以减少尿酸的生成。

Caffeine, known to chemists as 1,3,7-trimethylxanthine, is actually similar in structure to naturally-occurring molecules in our in our body called adenosines.

咖啡因，化学上称为1,3,7-三甲基黄呤，实际上在结构上与我们体内自然存在的腺苷分子相似。