Spectral Analysis of Human Brain Tissues for Detection of Alzheimers Disease

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Abstract

We have conducted a preliminary study of Alzheimer's diseased human brain tissue using laser induced fluorescence and near-infrared Raman spectroscopy. Spectra were collected for both white and grey matter postmortem specimens of Alzheimer's diseased brain and normal brain. Analysis of laser induced fluorescence data are currently in progress. Raman spectral data for normal brain tissue specimens show vibrational features consistent with those reported for white and grey matter. Raman spectra of Alzheimer's diseased tissue show distinct differences compared to normal tissue spectra. We will explore the association of differences observed in the fluorescence and Raman spectra of normal and diseased brain with the histopathological status of the tissue by studying more samples, including cerebrospinal fluid, expanding the spectral regions studied, and correlating the observed spectra with clinically identifiable parameters.

Funding Agency

• Agency: National Institute of Health (NIH)
• Institute: National Center for Research Resources (NCRR)
• Type: Biotechnology Resource Grants (P41)
• Project #: 2P41RR002594-11
• Application #: 5224221
• Support Year: 11
• Fiscal Year: 1996

Publications

Shih, Wei-Chuan; Bechtel, Kate L; Rebec, Mihailo V (2015) Noninvasive glucose sensing by transcutaneous Raman spectroscopy. J Biomed Opt 20:051036

Dudzik, Jonathan; Chang, Wen-Chi; Kannan, A M et al. (2013) Cross-linked glucose oxidase clusters for biofuel cell anode catalysts. Biofabrication 5:035009

Sathyavathi, R; Dingari, Narahara Chari; Barman, Ishan et al. (2013) Raman spectroscopy provides a powerful, rapid diagnostic tool for the detection of tuberculous meningitis in ex vivo cerebrospinal fluid samples. J Biophotonics 6:567-72

Dingari, Narahara Chari; Barman, Ishan; Saha, Anushree et al. (2013) Development and comparative assessment of Raman spectroscopic classification algorithms for lesion discrimination in stereotactic breast biopsies with microcalcifications. J Biophotonics 6:371-81

Cooper, Kimberly L; Oh, Seungeun; Sung, Yongjin et al. (2013) Multiple phases of chondrocyte enlargement underlie differences in skeletal proportions. Nature 495:375-8

Sung, Yongjin; Tzur, Amit; Oh, Seungeun et al. (2013) Size homeostasis in adherent cells studied by synthetic phase microscopy. Proc Natl Acad Sci U S A 110:16687-92

Lau, Condon; Mirkovic, Jelena; Yu, Chung-Chieh et al. (2013) Early detection of high-grade squamous intraepithelial lesions in the cervix with quantitative spectroscopic imaging. J Biomed Opt 18:76013

Soares, Jaqueline S; Barman, Ishan; Dingari, Narahara Chari et al. (2013) Diagnostic power of diffuse reflectance spectroscopy for targeted detection of breast lesions with microcalcifications. Proc Natl Acad Sci U S A 110:471-6

Byun, HeeSu; Hillman, Timothy R; Higgins, John M et al. (2012) Optical measurement of biomechanical properties of individual erythrocytes from a sickle cell patient. Acta Biomater 8:4130-8

Dingari, Narahara Chari; Barman, Ishan; Myakalwar, Ashwin Kumar et al. (2012) Incorporation of support vector machines in the LIBS toolbox for sensitive and robust classification amidst unexpected sample and system variability. Anal Chem 84:2686-94