Effects of antisense glutamic acid decarboxylase oligodeoxynucleotide on epileptic rats induced by pentylenetetrazol.
OBJECTIVE
To investigate the effects of antisense glutamic acid decarboxylase (GAD(67)) oligodeoxynucleo-tide (ODN) on behavior, seizure threshold and EEG of hippocampus in the epileptic rats induced by pentylenetetrazol (PTZ).


METHODS
A model of chronic epilepsy in rats was established by PTZ. The inhibition of GAD(67) mRNA expression in hippocampus was selectively induced by antisense oligodeoxynucleotide of GAD(67). The effect of antisense GAD(67) ODN on behavior, seizure threshold and EEG recording of kindled rats was examined.


RESULTS
Antisense GAD(67) ODN could inhibit the expression of GAD(67) mRNA and the concentration of GABA. It also could significantly shorten the latencies of seizure and increase the level of seizure and the frequency of epileptiform discharges.


CONCLUSIONS
The gene of GAD(67) may be an anti-seizure gene, which might inhibit epileptiform discharge. The treatment of epilepsy by GAD(67) gene will have a bright future.
He
Xiaohua
X
Department of Virology and Molecular Biology, School of Life Sciences, Wuhan University, Wuhan 430070, China.
Wang
Wei
W
Ruan
Xuzhong
X
Li
Wenxin
W
Zhang
Liang
L
D000818:Animals; D004569:Electroencephalography; D004827:Epilepsy / Q000139:chemically induced / Q000503:physiopathology*; D005968:Glutamate Decarboxylase / Q000235:genetics / Q000494:pharmacology*; D006624:Hippocampus / Q000503:physiopathology; D007527:Isoenzymes / Q000235:genetics / Q000494:pharmacology*; D007696:Kindling, Neurologic; D008297:Male; D016376:Oligonucleotides, Antisense / Q000494:pharmacology*; D010433:Pentylenetetrazole; D051381:Rats; D005680:gamma-Aminobutyric Acid / Q000032:analysis
D007527:Isoenzymes; D016376:Oligonucleotides, Antisense; D005680:gamma-Aminobutyric Acid; D005968:Glutamate Decarboxylase; C402565:glutamate decarboxylase 1; D010433:Pentylenetetrazole