次黄嘌呤

RNA editase transforms or modifies the nucleotide of pre-RNA by deaminization, and hydrolytic deaminize C6 amino group of the adenosine at the specific RNA site, changing adenosine to inosine or changing cytosine to uracil,but inosine was recognized as guanine in mRNA.

RNA编辑酶以脱氨方式使得RNA特异位点的腺嘌呤脱氨转变为次黄嘌呤，或者是特异位点的胞嘧啶变为尿嘧啶，而次黄嘌呤在碱基配对时被识别为鸟嘌呤。

Object: The purpose of this study was to supply people with scientific dietary instructions by investigating the change of the content of adenine, guanine, xanthine and hypoxanthine in two Huahuang fish and carp during boil processing. Method The HPLC method was accepted.

目的：通过检测经过水煮的黄花鱼和鲤鱼中腺嘌呤、鸟嘌呤、黄嘌呤、次黄嘌呤的含量，探索在高温水煮过程中嘌呤含量的变化，希望以此为人们的健康饮食提供科学的指导基础。

It shows that the allantoin, which only takes little part in calves, was the main part (about73%~88%) in the cattle's urine, and the xanthine and hypoxanthine which are also take only much little part, can be neglected.

结果发现，试验牛尿中嘌呤衍生物中尿囊素大约为73%~88%，黄嘌呤和次黄嘌呤的含量很小，可以忽略不计，与以往对成年反刍动物的研究结果相似，与同个体犊牛期的研究结果相反。

The reactivity of guanine, adenine and hypoxanthine on electrodes made with different materials is discussed. The rough pyrolytic graphite electrode was selected for the electrochem. study.

本文讨论了鸟嘌呤、腺嘌呤和次黄嘌呤等嘌呤类生物小分子在几种电极上的反应活性，并选用粗热解石墨电极研究了它们的电化学性质。

Hypoxanthine and a uricase inhibitor were combined into the model drug to work out the rat＇s animal model for hyperuricemia. A comparison was made between the effect of hypoxanthine and that of the model drug on the subject＇s serum uric acid levels. Also, such factors as the dose effect and time effect of the model-building drug were investigated.

采取合用次黄嘌呤和尿酸酶抑制剂为模型药物，制备一种尿酸生成增多型大鼠高尿酸血症动物模型，比较了单用次黄嘌呤及合用尿酸酶抑制剂对受试动物血清尿酸水平的影响，并对造模药物的量效、时效关系等因素进行了考察。

Basal oxypurines (xanthine, hypoxanthine, and urate) rose with FA pretreatment but increased less during ischemia than in controls.

以FA预处理后基础羟基嘌呤(黄嘌呤，次黄嘌呤和尿酸盐)增加了，但缺血组却比对照组增加要少。

The content of purines in soup increased sharply during 10 min, increased slowly during 10 min to 60 min. The content of adenine in carp weighed 200 g increased during boiling process, that of guanine was stable, that of total purines and hypoxanthine decreased. The content of total purines and four purines in Huahuang fish decreased during boil processing.

鱼汤中嘌呤含量在10min内迅速升高，10~60min缓慢升高。200g鲤鱼中腺嘌呤含量在水煮加热过程中升高，鸟嘌呤含量无明显变化，总嘌呤和次黄嘌呤组分含量下降，200g黄花鱼的总嘌呤及4种嘌呤组分含量在水煮加热过程中下降。

A method of screening serum of patients of gout and hyperuricemia includes checking purine compound content of xanthine and hypoxanthine in serum to be tested, confirming that serum to be tested is serum of gout patient if xanthine content of 1.00-2.35 mg / L and / or hypoxanthine content of 4.1-16.00 mg / L are contained in serum to be tested and confirming that serum to be tested is serum of hyperuricemia patient if xanthine content of 0.20-1.20mg/L and / or hypoxanthine content of 1.30-3.50mg/L are contained in serum to be tested.

本发明所提供的筛查痛风疑似患者及高尿酸血症疑似患者血清的方法，是检测待测血清中包括黄嘌呤和次黄嘌呤在内的嘌呤化合物的含量，如待测血清中黄嘌呤含量为1.00-2.35mg/L，和/或次黄嘌呤含量为4.1-16.00mg/L，则待测血清为痛风疑似患者血清；如待测血清中黄嘌呤含量为0.20-1.20mg/L，和/或次黄嘌呤含量为1.30-3.50mg/L，则待测血清为高尿酸血症疑似患者血清。

The Ca〓 oscillations occured before GVBD were associated with the resumption of GVBD, because when the oocyte was cultured in medium with hypoxanthine, no Ca〓 oscillation occurred, without hypoxanthine the oscillations occured again.

这些Ca〓波动与卵母细胞的GVBD有关，被次黄嘌呤抑制于GV阶段的卵母细胞不出现这种形式的波动，当再次培养于无次黄嘌呤的培养液中则又出现Ca〓的波动。

RESULTS: The rates of germinal vesicle breakdown were 98%, 22.2%, 40.1% and the rates of the first polar body (PB1) extrusion were 77.7%, 15.5%, 27.6% for M16, Hx and FA groups, respectively. The rates of GVBD and PB1 were all increased with the addition of FA compared with the Hx groups and comparison was significant (P.05). Hx and FA did not influence chromosome, but FA reversed the size of metaphase spindle elongated by Hx.

结果：M16培养液组、Hx模型组和FA处理组的GVBD率分别为98%、22.2%、40.1%，其PB1排出率分别为77.7%、15.5%、27.6%，各组间的差异均具有统计学意义(P.05)；次黄嘌呤和叶酸对染色体的形态没有影响，而次黄嘌呤使正常的纺锤体变长、变宽、面积变大，FA组较Hx模型组增大的纺锤体有所恢复，并接近于正常水平。

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。