Abstract
Proteomics involves large-scale comprehensive study of specific proteomes which have been widely used in the field of biomarker discovery, drug development, disease diagnosis and therapy. Comprehensive proteomics involve two or more proteomics approaches that are confirmatory, complementary, and/or synergistic. Obstructive sleep apnea (OSA) is a sleep disorder which causes respiratory cessation (due to upper airway collapse). Here we describe a comprehensive MS based label-free quantitative proteomic analysis of the OSA induced rat atria homogenates and matched controls by using 1 dimensional SDS PAGE (1-D PAGE) and 2 dimensional SDS PAGE (2-D PAGE) separation of the proteins, enzymatic digestion and analysis by nanoliquid chromatography tandem-mass spectrometry (LC-MS/MS). The outcomes from the 1D-PAGE and 2D-PAGE studies not only identified dysregulated proteins due to OSA, but also confirmed and complemented each other.
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