嘌

In DNA, four different bases are found. Two of these, adenine and guanine , are double-ring structures called purines.

在DNA中，有四种不同的碱基，其中的两个为腺嘌呤和鸟嘌呤，即称为嘌呤的双环结构。

Result The application of 3 mg/L potassium dihydrogen phosphate could promote potted seedlings of Arizona to flower earlier; the effect of 3 mg/L potassium dihydrogen phosphate +20 mg/L N 6-benzyladenine was the best. The flower bud differentiation was early and more, with the flowering rate of 90%, and the flowering branches were long and sturdy; when N6-benzyladenine was 40 mg/L, the growth of potted seedlings of Arizona was inhibited; N6-benzyladenine had a certain inhibition on leaf etiolation of potted seedlings of Arizona.

结果］喷施3 mg/L的磷酸二氢钾可促进亚丽桑那组培苗提早开花；3 mg/L磷酸二氢钾＋20 mg/L 6-苄基嘌呤的处理效果最好，花芽分化早、多，成花率高达90%，花枝长且粗壮；当6-苄基嘌呤浓度为40 mg/L时，亚丽桑那盆栽苗生长受抑制；6-苄基嘌呤对亚丽桑那盆栽苗的叶片黄化有一定的抑制作用。

Members of the purine group include adenine and guanine, which are constituents of the nucleic acids, and certain plant alkaloids, e.g.

嘌呤基的成员包括腺嘌呤和鸟嘌呤，它们是核酸以及某些植物生物碱的成分，如咖啡因和可可碱。

Adenine and guanine are purines and cytosine and thymine are pyrimidines.

腺嘌呤和鸟嘌呤是嘌呤和胞嘧啶和胸腺嘧啶是嘧啶。

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。

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。

Allopurinol; P=0.23 for 120 mg of febuxostat vs. allopurinol. The median reduction in tophus area was 83 percent in patients receiving 80 mg of febuxostat and 66 percent in those receiving 120 mg of febuxostat, as compared with 50 percent in those receiving allopurinol P=0.08 for 80 mg of febuxostat vs.

在接受非布索坦80mg治疗的患者中，痛风石缩小的中位值为83%；在接受非布索坦120mg治疗的患者中为66%，而在那些接受别嘌醇治疗的患者中为50％（非布索坦80mg组与别嘌醇组比较，P= 0.08；非布索坦120mg组与别嘌醇组比较P= 0.16）。

According to a statement from Takeda, febuxostat is a new highly potent non-purine selective inhibitor of xanthine oxidase, and has a completely different structure from the currently used xanthine oxidase inhibitor, which was developed over 40 years ago.

根据该公司的声明，febuxostat是一种新的非嘌呤类黄嘌呤氧化酶选择性强抑制剂，与40多年前发明并延用至今的黄嘌呤氧化酶抑制剂的结构完全不同。

Kinds of Schiff base derivatives of 2-N-benzylidene Furanmethanamine have been designed. The Net Charges of main atoms, bond lengths, bond angles, dihedral angles, IR have been calculated by means of HyperChem6. 0 program. 36 kinds of Schiff base derivatives of benzylidene adenine have been designed. Also the net charges of main atoms, bond lengths, bond angles, dihedral angles, IR, the energy gap △E between HOMO and LUMO and the nonlinear second-order polarizability β have been calculated by means of HyperChem6. 0 program. The calculated results indicated that the nonlinear second-order polarizability β were up in accordance with the △E down.

设计了腺嘌呤缩苯甲醛36种衍生物，计算了这些分子的气相几何，腺嘌呤缩苯甲醛中各原子的电荷分布，最高占有轨道HOMO和最低未占有轨道LUMO的能量以及它们之间的能量差△E，同时还计算了这些分子的二阶非线性极化率β，我们发现腺嘌呤缩苯甲醛的二阶非线性光学系数与△E有近似一致的变化关系，随着△E的减小，二阶非线性光学系数有增大的趋势。

NADPH oxidase inhibitor, diphenylene iodonium chloride (DPI, 10 μmol/L), abolished histamine-stimulated calcium oscillations both in normoxic and posthypoxic PAECs.(3) Xanthine oxidase inhibitor, oxypurinol (100 μmol/L), did not affect the calcium oscillation kequency in normoxic PAECs. However, it significantly decreased the elevation of calcium oscillation frequency in posthypoxic PAECs.

黄嘌呤氧化酶抑制剂，别嘌呤醇(oxypurinol，100 μmol/L)能显著降低组胺刺激的缺氧后肺动脉内皮细胞升高的钙振荡频率，但降低后的钙振荡频率仍高于常氧组，别嘌呤醇对组胺刺激的常氧组肺动脉内皮细胞钙振荡频率无显著影响。

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。