Effects of L-Arginine on Penicillin-Induced Epileptiform Activity in Rats.
-
- Marangoz Cafer
- Department of Physiology, Faculty of Medicine, University of Ondokuz Mayis
-
- Bagirici Faruk
- Department of Physiology, Faculty of Medicine, University of Ondokuz Mayis
この論文をさがす
抄録
It has been suggested that nitric oxide (NO) is involved in the pathophysiology of epilepsy. Data are, however controversial because it is not clear whether NO has pro- or anticonvulsant effects. The aim of this study was to investigate the effects of NO on penicillin G-induced epileptiform activity. The left cerebral cortex was exposed by craniotomy in urethane-anesthetized Wistar rats. The epileptic activity was produced by intraperitoneal injection of penicillin G (3 million U/kg, i.p.). The ECoG (electrocorticogram) activity was displayed on a four-channel recorder. At 39.7 ± 5.4 min after penicillin administration, large amplitude sharp waves appeared in the ECoG. Mean spike frequency and mean spike amplitude were calculated as 29.5 ± 3.2/min and 865 ± 91 μV, respectively, at the 55th min. 7-Nitroindazole (60 mg/kg, i.p.) injection 30 min before penicillin G administration significantly reduced the latency of epileptiform activity. Intracerebroventricular administration of L-arginine (300 μg/2 μl, i.c.v.) and sodium nitroprusside (100 μg /2 μl, i.c.v.) suppressed epileptiform activity. Saline (2 μl) and D-arginine (300 μg/2 μl, i.c.v.) administration into the cerebral ventricle were completely ineffective on epileptiform activity (P<0.01). These findings suggest that NO may be an endogenous antiepileptic substance.
収録刊行物
-
- Jpn.J.Pharmacol.
-
Jpn.J.Pharmacol. 86 (3), 297-301, 2001
公益社団法人 日本薬理学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390282679263257216
-
- NII論文ID
- 130000078024
-
- NII書誌ID
- AA00691188
-
- COI
- 1:CAS:528:DC%2BD3MXlsFagtbc%3D
-
- ISSN
- 13473506
- 00215198
-
- NDL書誌ID
- 5848676
-
- PubMed
- 11488429
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可