查询词典 porphyrin

Our data show that the circadian clock and haem biosynthesis are reciprocally regulated and suggest that porphyrin-containing molecules are potential targets for therapy of circadian disorders.

这说明，卟啉衍生物（B12含有卟啉）是如癌症等生物节律失调疾病的潜在治疗药物，而且通过细胞周期调节物质与生物钟之间的联系，还可用在接受化学疗法和放射疗法的患者身上。

It demonstrates that the illuminant substance of skin won't affect the measurement of porphyrin.

由此可见皮肤中发光物质不会影响卟啉荧光的探测。

The excitation and emission spectra of skin were taken to verify what affect of those illuminant substances might cause in porphyrin detection.

通过测量皮肤的反射光谱、透射光谱和荧光光谱分析确定皮肤中的发光物质及其光谱对卟啉荧光的影响。

Nitrations of both hydroxyl- and acetamino-substituted porphyrins were found to take place at the adjacent position of the substituent in the very aryl ring, whereas nitro group was guided into para positions of unsubstituted phenyl ring during the nitration of nitro-substituted porphyrin.

结果表明，羟基和乙酰氨基卟啉的硝化反应发生在与该取代基处于同一芳环的meta位，而硝基卟啉进行硝化时，硝基取代于其他未取代苯环的para位。

Porphyrin nitrogen mustard has distinctive effect on the synthesis of DNA and photodynamic anti-tumor activity.

卟啉氮芥可显著抑制人肝癌细胞SMMC7721DNA的合成；对人肝癌细胞SMMC7721有显著的光动力抑制作用，可破坏肿瘤细胞的细胞膜，抑制肿瘤细胞DNA的合成。

Methods: Cell proliferation was measured by crystal voilet staining assay. The activity of lactic acid dehydrogenase in the upper layer of culture solution was tested to examine the damage to the cell membrane.3H-TdR was used to study the effect of porphyrin nitrogen mustard on the synthesis of DNA.

用结晶紫染色法测定卟啉氮芥对人肝癌细胞SMMC7721的光动力抑制效应，用测定培养上清乳酸脱氢酶活性方法研究光动力作用对人肝癌细胞SMMC7721细胞膜的作用，用3H-TdR掺入法研究光动力作用对人肝癌细胞SMMC7721DNA合成的影响。

Results: Porphyrin nitrogen mustard (5 μg/ml ) decreased the D value of human liver cancer cell line SMMC7721. The activity of LDH was increased after laser irradiation. The3H-TdR of human liver cancer cells was decreased with or without laser.

结果：卟啉氮芥(5μg/ml，培养1h)可使人肝癌细胞SMMC7721D值明显降低、经光激发可使培养上清LDH活性显著升高；可使体外培养人肝癌细胞SMMC7721的3H-TdR掺入量显著下降、经光激发可使体外培养人肝癌细胞SMMC7721的3H-TdR掺入量进一步显著下降。

The preparation of a novel porphyrin derivative bearing oligo( p -phenylene) group and its zinc complex was reported, which involved a microwave irradiation and a synthesis based on the template effects, respectively.

利用微波反应和模板效应合成了带有苯乙烯撑单元的新型卟啉化合物和锌卟啉配合物。

Numerous studies have been focused on synthesis and applications of porphyrin derivatives.

卟啉衍生物的合成及应用是目前研究的热点之一。

We also devote ourselves to development and research of raw stock for porphyrin medicine.

我们还致力于卟啉类药物原料的开发研究。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷