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汉语拼音：piào lìng

一种含氮的杂环有机化合物。其衍生物鸟嘌呤、腺嘌呤等是核酸的重要组成部分，在生物的代谢过程中起着重要作用。如咖啡碱、尿酸等都是嘌呤类化合物。呤（lìng）。

1. [英purine]有机化合物，无色结晶，易溶于水，在人体内氧化而变成尿酸。

• The substitution of a purine for a pyrimidine, or vice versa is a transversion.

  嘌呤为嘧啶取代或嘧啶为嘌呤所取代,叫做颠换.

• Tungstate competitively inhibits the utilization of molybdenum for the formation of xanthine dehydrogenases.

  钨酸盐竞争性地抑制钼的利用以形成黄嘌呤脱氢酶.

• Combined antitumor effects of 5 - Fluorouracil and Allopurinol, ( HPP ) wese studied in this paper.

  本文研究氟脲嘧啶(5—Fluorouracil, 5—Fu)并用别嘌呤醇 ( Allopurinol,HPP ) 的抗肿瘤作用.

• There are just four kinds: adenine, thymine, guanine and cytosine.

  只有4种: 腺嘌呤 、 胸腺嘧啶 、 鸟嘌呤和胞核嘧啶.

• The analytic method ( HPLC ) of purine compounds content in beer was developed.

  建立了 高效液相色谱 法测定啤酒中嘌呤类物质含量的分析方法.

• Xanthine oxidase is an enzyme involved in the production of uric acid.

  黄嘌呤氧化酶是一种与尿酸生成相关的酶.

• Adenine A nitrogenous base ( 6 - amino - purine ) found in DNA and RNA.

  腺嘌呤:在DNA和RNA中发现的含氮的碱基 ( 6 - 氨基嘌呤 ).

• Uracil -- a pyrimidine found in RNA that base - pares with adenine.

  尿嘧啶 -- 核糖核酸中的一种嘧啶,与腺嘌呤形成碱基对.

• These patients also were receiving drugs known as azathioprine or 6 - mercaptopurine.

  这些患者同时接受了硫唑嘌呤或巯基嘌呤治疗.

• Allopurinol is an appropriate long term urate lowering therapy.

  别嘌呤醇是一种合适的长期降尿酸药物.

• Caffeine, a purine alkaloid, is a key component of tea and coffee.

  咖啡因是一种嘌呤生物碱, 存在于茶和咖啡中.

• Adenine refers to a portion of the molecule, nitrogenous base.

  腺嘌呤指分子的一部分, 即含氮碱基.

• Adenine has a purine ring structure.

  腺嘌呤具有嘌呤环的结构.

• Gout is caused by abnormal metabolism of purine.

  痛风是由于嘌呤代谢异常引起的疾病.

• Objective : To investigate the effect of morphine on purine nucleotide catabolism and the mechanism.

  目的: 研究吗啡依赖及戒断对嘌呤核苷酸分解代谢的影响与作用机制.