Human tear peptide/protein profiling study of ocular surface diseases by SPE-MALDI-TOF mass spectrometry analyses

作者: Nerea González , Ibon Iloro , Javier Soria , Juan A. Duran , Alaitz Santamaría

DOI: 10.1016/J.EUPROT.2014.02.016

关键词:

摘要: Abstract The goal of this study was to investigate differences in tear peptidome/proteome profiles aqueous-deficient dry eye, Meibomian gland dysfunction and control individuals. Tears from 93 individuals were collected by capillary subjected solid-phase extraction followed MALDI-TOF for profiling analysis. Obtained spectra aligned variable penalty dynamic time warping (VPdtw) the resulting data analyzed using multivariate statistics. Comparative analyses revealed good performance VPdtw a high discrimination groups with correct assignment 89.3% twelve informative peaks. SDS–PAGE MALDI-TOF/TOF analysis allowed identification lipocalin-1 as biomarker candidate.

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