单语范例（未经PONS编辑处理）
Uric acid is a product of the metabolic breakdown of purine nucleotides.
en.wikipedia.org He is remembered for his research involving the formation of uric acid, and his investigations of acetonuria.
en.wikipedia.org On postmortem examination nephritis with accumulation of uric acid (gout) and enteritis are commonly present.
en.wikipedia.org A chick on up to its 5th day of development excretes ammonia, from 5th to 9th day, urea and 9th day onwards, uric acid.
en.wikipedia.org Bilirubin comes from the breakdown of red blood cells' contents, while uric acid is a breakdown product of purines.
en.wikipedia.org