Abstract
In this study we used proteomics approaches to obtain the protein profile of human epileptic hippocampi (N=6) and control hippocampi obtained from autopsy (N=6). We used two-dimensional gel electrophoresis (2-D) coupled to HPLC and Mass spectroscopy (MALDI-TOF) to identify proteins differentially expressed. Nine proteins were differentially expressed comparing the hippocampus of patients with the hippocampus of control. Proteins that were increased in the hippocampus of patients with TLE were: isoform 1 of serum albumin, HSP 70, dihydropyrimidinase-related protein 2, isoform 1 of myelin basic protein, proton ATPase catalytic subunit A, and dihydrolipoyllysine-residue acethyltransferase component of pyruvate dehydrogenase complex. The expression of isoform 3 of spectrin alpha chain (fodrin) was down-regulated while the proteins glutathione S-transferase P and the DJ-1 (PARK7) were detected only in the hippocampus of patients with TLE. Taken together, our results provide evidence supporting a direct link between metabolic disturb and oxidative damage related to pathophysiology of TLE. Besides, indicates biomarkers for further investigations as therapies targeted to epilepsy.
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