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| 1 | 生物效价检测在天然药物国际化发展中的应用显示文摘基于生物效价检测在生化药物、化学药物和中药领域中的应用,重点阐述了生物效价检测在药物活性评价中所具有的独特优势,进一步探讨生物效价检测在天然药物国际化发展中的应用前景。 | 尹卫平 吕碧玉 刘华清 杨强强 | 2018 | 河南科技大学学报(自然科学版)2018，39，2： | 1 |
| 2 | 动态分析抗菌作用的新方法显示文摘最低抑菌浓度(MIC)是表征抗菌药物对细菌生长抑制最终效应的常规方法,不能描述抑菌作用的时间过程,药敏试验也不适用于高抗药性水平菌株的治疗方案确定.因此本文提出了一个普适性的新药敏试验方法.不同接种量的质控菌株Escherichia coli ATCC 25922和临床高抗药性水平菌株E.coli BBZ在不同系列浓度的6种抗菌药物(环丙沙星、氨苄西林、头孢噻呋、阿米卡星、硫酸黏菌素和多西环素)作用下,37℃下培养1200 min,连续检测时间序列点的光密度值A600作为反应变量,以相对抑菌效应(RIE=((a.b)/a)×100%)表征抑制效应,进而用等效线图表征药物浓度和时间协同抑制效应的动态过程,量化了浓度依赖型和时间依赖型,细化不同菌株对药物敏感性的差别.由此得到,达到最大抑制效应时,需要的最低药物浓度和时间,以及增大药物浓度或延长反应时间对抑制效应的影响,这正是临床用药最需要的信息.此外,大接种量下最大抑菌效应很低,表明不适合治疗.本方法为防治高抗药性菌株感染提供了药敏试验方法,也有益于促进新药研发药敏检测方法的改进.最后提出适于临床应用的、快速定性显示药物敏感性的方法的建议. | 张庆 胡明 王杰 杨炜华 金建玲 刘玉庆 高培基 | 2017 | 中国科学:生命科学2017，47，6： | 0 |
| 3 | The bacterial RNA ligase RtcB accelerates the repair process of fragmented rRNA upon releasing the antibiotic stress显示文摘RtcB, a highly conserved RNA ligase, is found in all three domains of life, and demonstrated to be an essential tRNA splicing component in archaea and metazoans. However, the biological functions of RtcB in bacteria, where there is no splicing, remains to be clarified. We first performed bioinformatics analysis which revealed highly conserved structures and presumably conserved functions of RtcB in bacteria. However, its orthologs only occur in ~0.5% of bacterial species across diverse phyla with significant signals of frequent horizontal transfer, highlighting its non-essential role in bacteria. Next, by constructing an rtcBknockout strain, we find that the removal of antibiotic stress induces a significant impact on rtcB expression in wild-type strain,and furthermore the depletion of RtcB(?RtcB strain) delays the recovery process. Our transcriptomic analysis, comprising the3′-end labeling of RNAs, highlights a significant increase in unmapped reads and cleaved rRNAs in the ?RtcB strain, particularly during recovery. Our observations suggest that the conserved RNA ligase RtcB, repairs damaged r RNAs following stress,which potentially saves energy and accelerates recovery of its host. We propose that acquisition of RtcB by diverse bacterial taxa provides a competitive advantage under stressful conditions. | Muhammad Ramzan Manwar Changjun Shao Xing Shi Jian Wang Qiang Lin Yigang Tong Yu Kang Jun Yu | 2020 | Science China(Life Sciences)2020，63，2： | 0 |
| 4 | 2011年《中国科学·生命科学》回顾(英文)显示文摘Research in the field of life science is movingforward at a high pace.Science China Life Sciences istrying to reflect this trend as much as possible bypublishing research articles of notable originaldiscoveries. | 昌增益 | 2012 | 生物化学与生物物理进展2012，39，12： | 0 |
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