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Synchrotron Radiation-Based FTIR Microspectroscopic Imaging of Traumatically Injured Mouse Brain Tissue Slices
Guo, Yuansen1,2,3; Chen, Tunan4,5; Wang, Shi4,5; Zhou, Xiaojie6; Zhang, Hua1,2,7; Li, Dandan1,2; Mu, Ning4,5; Tang, Mingjie1,2,3; Hu, Meidie1,2; Tang, Dongyun1,2,7
2020-11-24
摘要Traumatic brain injury (TBI) is a health problem of global concern because of its serious adverse effects on public health and social economy. A technique that can be used to precisely detect TBI is highly demanded. Here, we report on a synchrotron radiation-based Fourier transform infrared (SR-FTIR) microspectroscopic imaging technique that can be exploited to identify TBI-induced injury by examining model mouse brain tissue slices. The samples were first examined by conventional histopathological techniques including hematoxylin and eosin (H&E) staining and 2,3,5-triphenyltetrazolium chloride staining and then spectroscopically imaged by SR-FTIR. SR-FTIR results show that the contents of protein and nucleic acid in the injured region are lower than their counterparts in the normal region. The injured and normal regions can be unambiguously distinguished from each other by the principle component analysis of the SR-FTIR spectral data corresponding to protein or nucleic acid. The images built from the spectral data of protein or nucleic acid clearly present the injured region of the brain tissue, which is in good agreement with the H&E staining image and optical image of the sample. Given the label-free and fingerprint features, the demonstrated method suggests potential application of SR-FTIR spectroscopic mapping for the digital and intelligent diagnosis of TBI by providing spatial and chemical information of the sample simultaneously.
DOI10.1021/acsomega.0c03285
发表期刊ACS OMEGA
ISSN2470-1343
卷号5期号:46页码:29698-29705
通讯作者Tang, Yuzhao(tangyuzhao@zjlab.org.cn) ; Wang, Huabin(wanghuabin@citig.ac.cn)
收录类别SCI
WOS记录号WOS:000595527600008
语种英语