Oxidative stress markers in surgically treated patients with refractory epilepsy.

Abstract:

OBJECTIVES:This study examines the redox status of drug-resistant epileptic patients and how it is modified after surgical treatment. DESIGN AND METHODS:The activity of antioxidant enzymes (superoxide dismutase, catalase and glutathione peroxidase), and markers of damage to biomolecules (malondialdehyde and advanced oxidation protein products) were determined by spectrophotometric methods in the serum of 9 drug-resistant epileptic patients, before and at different times after surgery, and in 32 control subjects. RESULTS:Pre-surgery, epileptic patients presented increases in markers of oxidative damage and alterations in the activities of antioxidant enzymes. Additionally, patients showed a correlation between advanced oxidation protein products and the evolution time of the illness. After surgery, patients showed a trend to normalization in all the measured variables, except for the superoxide dismutase activity. CONCLUSIONS:Drug-resistant temporal lobe epilepsy is associated with an oxidative stress condition that is favourably modified by the surgical resection of the epileptic foci.

journal_name

Clin Biochem

journal_title

Clinical biochemistry

authors

López J,González ME,Lorigados L,Morales L,Riverón G,Bauzá JY

doi

10.1016/j.clinbiochem.2006.11.019

subject

Has Abstract

pub_date

2007-03-01 00:00:00

pages

292-8

issue

5-6

eissn

0009-9120

issn

1873-2933

pii

S0009-9120(07)00014-8

journal_volume

40

pub_type

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