嘌

Ex -cept the normal group, the mice in other three groups received sensitizat -ion by intraperitoneal injection of ovalbuminand challenge by inh -alation of OVA to induce bronchial asthma, The mice models of asthmaerwent with different therapy.

干预完成后，采用ELISA方法检测血清中IFN-γ水平，黄嘌呤氧化酶法检测肺组织中SOD活性，硫代巴比妥酸法测定肺组织中MDA含量。并对各组小鼠肺组织进行病理形态学观察。

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。

Compared with AZA, MMF also is an alternatie for maintenance therapy of seere LN without significant difference in the prognosis or risks of amenorrhoea and herpes zoster.

由于霉酚酸酯在预后以及闭经和感染带状疱疹病毒的风险与硫唑嘌呤比较没有明显的区别，所以也可用于维持治疗。

Methods We used retrograde CTb immunocytochemical and NADPH-d histochemical staining methods after microinjecting CTb into cortical amygdaloid.

采用霍乱毒素B亚单位逆行追踪和还原型尼克酰胺腺嘌呤二核苷酸脱氢酶组织化学双重染色相结合的方法。

The results show that all the hmgr genes from pigs, cattle and chickens are astable enzyme proteins with the same gene sequence characteristics and encoding protein and physical and chemical properties; all the amino acid sequences have a high degree of homology, containing two conservative HMG-CoA binding motifs and two NADPH binding motifs; all the amino acid sequences, containing signal peptide, are secreted proteins; they are all hydrophobic transmembrane proteins with five transmembrane domains; random coil and α-helix are the main structural elements in the HMGR polypeptide chain; all the predictions of three-dimensional structure are V- shaped; there are more closer evolution relationship between the HMGR gene from pigs and cattle.

结果表明：猪、牛和鸡HMGR基因序列特点及编码蛋白质理化性质基本相同，均属不稳定类酶蛋白；保守结构域氨基酸序列具有高度的同源性，均含有保守的2个β-羟基-β-甲基戊二酸单酰辅酶A结合基序和2个还原性烟酰胺腺嘌呤二核苷酸结合基序；均有信号肽，属分泌型蛋白质；属于跨膜的疏水性蛋白，均有5个跨膜结构域；无规则卷曲和α-螺旋是HMGR多肽链中的主要结构元件；三维结构预测都呈"V"字形；猪和牛HMGR基因的进化关系最近。

Methods: SOD activities and MDA were determined by xanthionxid methol and barbital acid microdermination.

采用黄嘌呤氧化法测定超氧化物岐化酶活性，用改良巴比妥酸微量法测定丙二醛含量。

Our results suggest that the chemical structure and number of hydroxyl groups on the benzene ring of coumarin were correlated with the effects of ROS suppression.

结果发现所有的香豆素衍生物都具有抑制黄嘌呤氧化酶活性的能力，且其抑制型态属於竞争型抑制剂。

In the first step the 2' hydroxyl group of the adenine of the branch point sequence attacks the phosohdiester bond 5' to the G of the GT (5' splice site).

在第一步骤2 '羟基组对腺嘌呤的分支点序列攻击phosohdiester债券5 '向克的gt （ 5 '剪接位点）。

It has been developed as an anti-hepatitis B virus agent for treatment of chronic hepatitis B virus infection by Bristol-Myers Squibb Company.

恩替卡韦是一种有效的、选择性抑制乙型肝炎病毒复制的脱氧鸟嘌呤核苷类似物，由Bristol MyersSquibb公司研究开发，用于治疗乙型肝炎。

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。