目的基于特定的荧光检测技术,探讨组织自发荧光在大鼠心肌缺血性损伤实验中的应用。方法本研究通过Kodak FX Pro活体成像技术检测大鼠心肌组织的自发荧光。通过荧光检测,比较正常大鼠和心肌缺血性损伤大鼠的心肌组织对应部位自发荧光的...目的基于特定的荧光检测技术,探讨组织自发荧光在大鼠心肌缺血性损伤实验中的应用。方法本研究通过Kodak FX Pro活体成像技术检测大鼠心肌组织的自发荧光。通过荧光检测,比较正常大鼠和心肌缺血性损伤大鼠的心肌组织对应部位自发荧光的变化,并进行定量分析。结果心肌缺血损伤后,损伤部位组织自发荧光信号明显增强,将荧光信号通过活体成像系统进行定量,与正常心肌组织比较差异有统计学意义。结论大鼠心肌组织在心肌缺血损伤后,心肌组织的自发荧光明显增强,为大鼠心肌缺血损伤模型的研究及其评价提供新的方法。有利于定位、定性、定量比较研究,可用于病理、生理、药理及作用机制等多方面研究。展开更多
While elucidating the inhibitory mechanism of a hydrolytic enzyme by aldehyde-containing natural product,we discovered a reaction involving a rapid 6π-azaelectrocyclization of azatrienes generated from aldehyde with ...While elucidating the inhibitory mechanism of a hydrolytic enzyme by aldehyde-containing natural product,we discovered a reaction involving a rapid 6π-azaelectrocyclization of azatrienes generated from aldehyde with lysine residues.The electrocyclic reaction of the 1-azatriene system,a cyclization precursor,exhibited a significant substituent effect.Asymmetric chiral piperidine synthesis and a one-pot library synthesis of pyridines on solid-supports were applied to synthesize pyridine/indole alkaloid-type natural product.Additionally,we developed lysine-based labeling and engineering of biomolecules and living cells based on the rapid 6π-azaelectrocyclization.Both labels and oligosaccharide structures were introduced efficiently and selectively into surface lysines under the mild conditions;notable effects of N-glycans on proteins and living cells were visualized for the first time by PET and noninvasive fluorescence imaging.展开更多
文摘目的基于特定的荧光检测技术,探讨组织自发荧光在大鼠心肌缺血性损伤实验中的应用。方法本研究通过Kodak FX Pro活体成像技术检测大鼠心肌组织的自发荧光。通过荧光检测,比较正常大鼠和心肌缺血性损伤大鼠的心肌组织对应部位自发荧光的变化,并进行定量分析。结果心肌缺血损伤后,损伤部位组织自发荧光信号明显增强,将荧光信号通过活体成像系统进行定量,与正常心肌组织比较差异有统计学意义。结论大鼠心肌组织在心肌缺血损伤后,心肌组织的自发荧光明显增强,为大鼠心肌缺血损伤模型的研究及其评价提供新的方法。有利于定位、定性、定量比较研究,可用于病理、生理、药理及作用机制等多方面研究。
文摘While elucidating the inhibitory mechanism of a hydrolytic enzyme by aldehyde-containing natural product,we discovered a reaction involving a rapid 6π-azaelectrocyclization of azatrienes generated from aldehyde with lysine residues.The electrocyclic reaction of the 1-azatriene system,a cyclization precursor,exhibited a significant substituent effect.Asymmetric chiral piperidine synthesis and a one-pot library synthesis of pyridines on solid-supports were applied to synthesize pyridine/indole alkaloid-type natural product.Additionally,we developed lysine-based labeling and engineering of biomolecules and living cells based on the rapid 6π-azaelectrocyclization.Both labels and oligosaccharide structures were introduced efficiently and selectively into surface lysines under the mild conditions;notable effects of N-glycans on proteins and living cells were visualized for the first time by PET and noninvasive fluorescence imaging.
