Infrared Spectroscopy for Tracking Changes in Proteins Secondary Structure and Lipids During Wound Healing Process of Diabetic Mice After Treated by a Cold Atmospheric Plasma Jet

IF 4.6 Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
Qingdong Wang;Qun Zhou;Lu-Xiang Zhao;Tao He;Xinyi Chen;Na Zhang;Hao Chen;Heng-Xin Zhao;Yongjian Li;Yu Zhang;He-Ping Li
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Abstract

The attenuated total reflection Fourier transform infrared spectroscopy attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FT-IR) detection was used to investigate the mechanisms of cold atmospheric plasma (CAP) treatment in wound healing. The peaks of ester carbonyl and $\alpha $ -helix in proteins, serving as the spectral fingerprints in the original infrared spectra and their second derivative spectra, of the wound samples were analyzed. The experimental results showed that the CAP treatment resulted in the reduction of the ester carbonyl contents, and the increase of the contents of $\alpha $ -helix in the proteins. This indicates that the CAP treatment accelerated the lipid metabolism to provide required energy for the protein production, which was also supported by the fact that the fibrin deposition in the wounds was more obvious in the plasma group than that in the control group.
利用红外光谱追踪糖尿病小鼠伤口愈合过程中蛋白质二级结构和脂质在冷大气等离子体射流作用下的变化
利用衰减全反射傅立叶变换红外光谱(ATR-FT-IR)检测技术研究了冷大气等离子体(CAP)处理伤口愈合的机制。分析了伤口样品原始红外光谱及其二阶导光谱中作为光谱指纹的蛋白质中的酯羰基峰和α-螺旋峰。实验结果表明,CAP 处理可降低蛋白质中酯羰基的含量,增加蛋白质中α-螺旋的含量。血浆组的伤口纤维蛋白沉积比对照组更明显,也证明了这一点。
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来源期刊
IEEE Transactions on Radiation and Plasma Medical Sciences
IEEE Transactions on Radiation and Plasma Medical Sciences RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-
CiteScore
8.00
自引率
18.20%
发文量
109
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