黄嘌呤

Guanosine monophosphate reductase catalyzes the NADPH-dependent reductive deamination of Guanosine monophosphate to inosine monophosphate .

鸟苷酸还原酶(guanosine monophosphate reductase，GMPR)(EC 1.6.6.8)主要催化鸟嘌呤核苷酸向次黄嘌呤核苷酸的转化：GMP+NADPH+2〓→IMP+〓+NADP〓。

Objective To explore the relationship between postmortem interval and degradation of Hypoxanthine guanine phosporibosyltransferase mRNA in the kidney of rats.

目的：探讨大鼠死后肾次黄嘌呤鸟嘌呤磷酸核糖转移酶mRNA降解情况与死亡时间的关系。

Objective:To study the hypoxanthine phosphoribosyl transferase gene mutation of rat peripheral blood lymphocytes and spleen lymphocytes induced by intermal radiation and of human peripheral blood lymphocytes induced by Y -ray.

目的：本实验主要是用克隆法研究放射性核素内照射诱发Wistar大鼠外周血淋巴细胞和脾淋巴细胞次黄嘌呤鸟嘌呤磷酸核糖转移酶基因突变及γ射线外照射诱发健康成年人外周血淋巴细胞HPRT基因突变情况。

In a nutshell, purine is a white, crystalline compound that includes uric acid, caffeine, and xanthine.

在坚果壳里，嘌呤是一种白色的结晶物，其中含有尿酸、咖啡因和黄嘌呤。

Fulvic acid is able to affect 〓 activity of xanthine oxidase which plays an important role in the production of reactive oxygen in pathological condition.

黄腐酸能够影响黄嘌呤氧化酶的活性，后者可在病理过程中产生活性氧自由基。

Esculetin had the highest affinity toward the binding site of XO, and this was due to hydrogen bonding interactions. The hydroxyl group at C-6 formed hydrogen bonds with the carboxyl group Glu802 that played critical role on XO binding.

在8种香豆素衍生物中发现esculetin与黄嘌呤氧化酶的亲和力最高，因为在esculetin的结构上，C-6的OH基团可与麸胺酸802的COOH基团形成氢键，此键结对於抑制黄嘌伶氧化酶活性是很重要的，因而增加了两者结合的稳定性。

Methods Acteoside was extracted from roots of Scrophularia ningpoensis .

从玄参根中分离提取苯丙素苷成分Acteoslde，采用矿黄嘌呤造成小鼠高尿酸血症，观察Acteoside对小鼠高尿酸血症的影响，并进一步从体外观察Acteoside对黄嘌呤氧化酶的冲制作用。

Six and twelve boors after sepsis, leptin levels in liver homogenate were detected by radioimmunoassay serum alanine aminotransferase and 4 enzymes in liver homogenate. myeloperoxidase, glutathin-S-transferase, xanthine oxidase and superoxide dismutase, all related with synthesis of free radicals, detoxication and purine metabolism, were detected by 96 well spectrophotometry. H-E staining was used to examine the histopathologic changes of liver.

于脓毒症后6 h和12 h，采用放射免疫法测量肝组织匀浆液中Leptin水平，采用96孔分光光度法检测血清丙氨酸氨基转移酶及髓过氧化物酶、谷胱甘肽－S转移酶、黄嘌呤氧化酶、超氧化物歧化酶等4种与自由基合成、解毒和嘌呤生成代谢相关的酶的水平，同时以H-E染色法观察肝组织病理学改变。

A yellowish-white, crystalline purine base, C5H4N4O2, that is a precursor of uric acid and is found in blood, urine, muscle tissue, and certain plants.

黄嘌呤一种黄白色结晶的嘌呤硷，c5h4n4o2，它是尿酸的前身，常见于血液、尿液、肌肉组织和某些植物中

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。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。