Raman, infrared, or Raman-Infrared analysis of peripheral blood plasma protein structure and its relation to cognitive development in Alzheimer's disease
申请人:Consejo Superior De Investigaciones Científicas
(CSIC)
公开号:EP2700933A1
公开(公告)日:2014-02-26
The present invention relates to a Raman spectroscopy method for determining protein structure associated with global cognitive deterioration in Alzheimer's disease from the Raman spectroscopic analysis of a human blood sample, preferably of a human blood plasma sample, comprising obtaining at least one spectral value of at least one of the Raman spectrum regions comprised between 1600-1700 cm-1, between 910-980 cm-1, between 730-760 cm-1 and/or between 390-450 cm-1, and where said spectral value allows obtaining an indication of the presence or absence of protein structure associated with a condition of Alzheimer's disease. The present invention also relates to a method for the infrared spectroscopic analysis of a blood sample, by means of additionally obtaining at least one spectral value of at least one of the infrared spectrum regions comprised between 1600 and 1700 cm-1 and/or between 1000 and 1150 cm-1. Optionally, the Raman spectroscopy method further comprises the infrared spectroscopic analysis of the same blood sample. The invention also relates to a diagnostic method for diagnosing Alzheimer's disease comprising measuring a Raman spectrum and/or an infrared spectrum of a plasma sample.
本发明涉及一种拉曼光谱方法,用于通过对人体血液样本,最好是人体血浆样本进行拉曼光谱分析,确定与阿尔茨海默氏症整体认知退化相关的蛋白质结构、包括获得至少一个拉曼光谱区域的光谱值,该光谱区域包括 1600-1700 cm-1、910-980 cm-1、730-760 cm-1 和/或 390-450 cm-1,其中所述光谱值可获得与阿尔茨海默氏症状况相关的蛋白质结构存在与否的指示。本发明还涉及一种对血液样本进行红外光谱分析的方法,其方法是额外获得至少一个红外光谱区域的光谱值,该光谱区域包括 1600 至 1700 cm-1 之间和/或 1000 至 1150 cm-1 之间。可选地,拉曼光谱方法还包括对同一血液样本进行红外光谱分析。本发明还涉及一种诊断阿尔茨海默病的方法,包括测量血浆样本的拉曼光谱和/或红外光谱。