Department of Physics, Annamalai University, Annamalai Nagar, Tamilnadu 608 002, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2012 Dec;99:252-8. doi: 10.1016/j.saa.2012.09.036. Epub 2012 Sep 26.
In this study, we intended to made a new approach to evaluate aluminium induced metabolic changes in mice brain tissue using Fourier transform infrared spectroscopy. Results demonstrate that FTIR can successfully indicate the molecular changes that occur in all groups. The overall findings demonstrate the alterations on the major biochemical constituents, such as lipids, proteins and nucleic acids of the brain tissues of mice. The significant decrease in the area value of amide A peak and Olefinic = CH stretching band suggests an alteration in the protein profile and lipid levels due to aluminium exposure, respectively. The significant shift in the amide I and amide II protein peaks may indicate the progression of aluminium induced Alzheimer's disease. Further the administration of DFO significantly improved the level of protein and brought back the amide I and II peaks nearer to the control value. Histopathological results also revealed impairment of Aluminium induced alterations in brain tissue. The results of the FTIR study were found to be in agreement with biochemical studies.
在这项研究中,我们旨在采用傅里叶变换红外光谱法对铝诱导的小鼠脑组织代谢变化进行新的评估。结果表明,FTIR 可以成功地指示所有组中发生的分子变化。总体研究结果表明,脑组织中主要生化成分(如脂质、蛋白质和核酸)发生了改变。酰胺 A 峰和烯属 = CH 伸缩带的面积值显著降低,表明由于铝暴露,蛋白质谱和脂质水平发生了改变。酰胺 I 和酰胺 II 蛋白峰的显著移位可能表明铝诱导的阿尔茨海默病的进展。此外,DFO 的给药显著提高了蛋白质水平,并使酰胺 I 和 II 峰更接近对照值。组织病理学结果也揭示了铝对脑组织的损伤作用。FTIR 研究的结果与生化研究结果一致。