2013, Number s1
Arch Neurocien 2013; 18 (s1)
A prospective proteomic-based study for identifying potential biomarkers for the diagnosis of damage in focal cerebral ischemia induced in a rat model
Sánchez-Hernández H, Vite-Bazan CO, Heras-Romero Y, Cázares Raga FE, Cortés Martínez l, Ortiz PA, Hernández-Hernández FC
PDF size: 965.61 Kb.
ABSTRACTCerebral vascular diseases are the third cause of death in Mexico and around the world; including focal cerebral ischemia (FCI) that leads to reduced blood supply in a specific zone of the brain, diminishing the glucose and oxygen. In early FCI stages there are molecular changes not well described in the cells of the affected and surrounding regions; these changes could be detected and used as biomarkers in easily accessed corporal fluids as blood serum (BS), in order to define biomarkers useful for disease advance diagnostic. Objective: analyze protein profile of rat sanguineous serum after 1h of FCI with or without 24h of sanguineous reperfusion (rpf), in order to identify possible early FCI biomarkers. Material and methods: cerebral focal ischemia was experimentally induced in brain rat, BS was obtained and serum albumin and immunoglobulin were depleted. Protein profile of serum samples were obtained by two dimensional gel electrophoresis, the images were analyzed using ImageMaster 2D Platinum software allowing to identify proteins present differentially in FCI. Results: under FCI and rpf, we observed up regulation of five proteins and down regulation of three proteins. To analyze their role as biomarkers in FCI, those proteins will be identified by mass spectrometry. Discussion and conclusion: protein analysis of corporal liquids is useful to find biomarkers to diagnostic and disease control. Proteins changes expression and localization with FCI aggrieving or dismissing injury, and BS could contain diagnostic markers to FCI useful to identify early changes in neurons and glial cells.