查询词典 purine

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。

Microbial-nitrogen estimated from total purine derivatives was higher than that from allantoin.

用嘌呤衍生物总量计算的结果高于用尿囊素计算的结果。

Objective To study the effect of morphine on gene expression of enzymes involved in salvage and catabolism pathways of purine nucleotides metabolism in nerve cells.

目的：研究吗啡对神经细胞模型PC12嘌呤核苷酸补救合成酶与分解代谢关键酶基因表达的影响。

Initial stage of disease of acerbity blood of high make water can not have any symptoms, but the part can evolve and cause acute arthritis, chalkstone, kidney stone and uric acid nephrosis. The content that 3 health teach 3 · 1 balanced diet, reducing acid of make water of tall purine food is the final result that purine metabolizes, fructose is absorbed can bring about acid of nucleotide of purine of the gland inside body to produce increase too much, promote make water to be generated acerbitily then, reason should be fed less contain the food with much fructose, the intake of daily purine should 50 Mg.

高尿酸血症初期可无任何症状，但部分可演变而诱发急性关节炎、痛风石、肾结石及尿酸肾病。3健康教育的内容3·1均衡饮食，减少高嘌呤饮食尿酸是嘌呤代谢的最终产物，果糖摄入过多可导致体内腺嘌呤核苷酸产生增多，进而促进尿酸的生成，故应少食含果糖多的食物，每日嘌呤的摄入量应50 mg。

The results indicated that washing step could result in about 60% decrease of purine substances of milkfish during processing. The main released purine substances were inosine monophosphate and inosine.

结果显示，制程中的水洗步骤可以减少虱目鱼的嘌呤含量约达60%，其主要流失的嘌呤物质为肌苷酸和肌苷。

Changes in purine related compounds of milkfish surimi based product during processing were investigated. The objective samples were collected at the processing steps as mince, after washing, surimi and surimi based product, separately, and subjected to purine content determination.

本研究探讨虱目鱼炼制品制程中嘌呤相关物质的变化，分别针对制程中之原料碎肉、水洗后、擂溃后和加热后等步骤进行采样与分析。

Pluck reach clam, crab, oyster, pilchard to wait to all be tall purine food, should restrict edible; flesh kind, the piscine shrimp, pea, spinach purine that also contains certain amount,...

动物内脏及蛤蜊、蟹、蚝、沙丁鱼等均为高嘌呤食物，应限制食用；肉类、鱼虾、豌豆、菠菜等也含有一定量的嘌呤，。。。

The famciclovir was synthesized from purine by a series of steps by Acylation, Decarboxylation, Reduction ,and so on; Derivatives of these intermediates is described from the 6-chloro- 9H- purin-2-amine as raw materials in different conditions when the iodine and bromide were synthesized with the addition of two intermediate 6-bromo-9H-purin-2-amine and 6-iodo-9H-purin-2-amine; There is elaborated from the main part of a acetophenone, urineaminohydrochloride, phenylhydrazine, ethyl acetoacetate as raw material through a series of reactions to synthetic 3-phenyl-4-formylphenyl pyrazole and 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-aldehyde two pyrazole aldehyde, and then with 2-amino-6-chlorine-9-(2-methicillin-oxo-co-methyl-4-yl) purine reaction of the two new pyrazole purine Schiff bases.

本论文主是采用以鸟嘌呤为原料，经过一系列的酰基化，脱羧，还原等反应作用下最终得到了产物2-氨基-9-(4-乙酰氧基-3-乙酰氧基甲基丁基)嘌呤；其中的中间体衍生物主要是阐述从以2-氨基-6-氯鸟嘌呤为原料通过在不同的条件下进行溴代与碘代分别合成了另外两种中间体2-氨基-6-溴鸟嘌呤及2-氨基-6-碘鸟嘌呤；还有一部分主要是阐述从以苯乙酮，盐酸氨基脲，苯肼，乙酰乙酸乙酯为原料通过一系列的反应先合成3-苯基-4-醛基吡唑及5-氯-3-甲基-1-苯基-1H-吡唑-4-甲醛这两个吡唑醛，然后再与2-氨基-6-氯-9-(2-甲氧羰基丁酸甲酯-4-基)嘌呤反应得到了两个新型的吡唑嘌呤席夫碱

Guanine was the highest purine base in eight kinds of beer that had a mean total purine content of 7.05 mg/100mL.

所分析8种品牌的啤酒，其嘌呤总含量平均为7.05 mg/100mL，而四种嘌呤分布则以guanine最高。

These phenomena suggest that the binding site of Zn~(2+) in the purine base of ATP is Nl at low pH and N7 at high pH and contrast to the adenosine-Zn~(2+) system where the purine base binds Zn~(2+) with N7 at low pH while with Nl at high pH.

为进一步证明上述观点，我们研究了Zn~(2+)与ATP的作用。发现加入Zn~(2+)时ATP溶液与纯ATP溶液在同一酸度下~(15)N化学位移的变化为：在高酸度(2＜pH＜5)，N-1化学位移差大于10ppm，在pH=3.73时，相差高达25ppm。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。