PMID- 7537613 OWN - NLM STAT- MEDLINE DCOM- 19950608 LR - 20191031 IS - 1096-4940 (Print) IS - 1096-4940 (Linking) VI - 111 IP - 1 DP - 1995 May TI - Effects of the epileptogenic agent strychnine on membrane currents elicited by agonists of the NMDA and non-NMDA receptors in Xenopus oocytes. PG - 65-71 AB - The effects of strychnine (STRY) on ion channels activated by N-methyl-D-aspartate (NMDA), kainate (KA), alpha-amino-3-hydroxy-5-methyl-4-isoxazolpropionate (AMPA) and quisqualate (QUIS) were studied using Xenopus oocytes, microinjected with mRNA from rats' brains. STRY reduced NMDA-, KA- and AMPA-induced membrane currents in a dose-dependent manner. The effect was more pronounced with NMDA than with KA and AMPA. QUIS-induced membrane currents were not affected by STRY. The depressive effect of STRY on NMDA responses was voltage dependent. The effect of STRY on the NMDA-induced membrane currents remains unchanged when the concentration of NMDA or glycine was increased. Intracellular injection of STRY did not alter the NMDA response. FAU - Musshoff, U AU - Musshoff U AD - Institut fur Physiologie, Munster, Germany. FAU - Madeja, M AU - Madeja M FAU - Bloms-Funke, P AU - Bloms-Funke P FAU - Speckmann, E J AU - Speckmann EJ LA - eng PT - Journal Article PL - United States TA - Comp Biochem Physiol A Physiol JT - Comparative biochemistry and physiology. Part A, Physiology JID - 9516062 RN - 0 (Ion Channels) RN - 0 (RNA, Messenger) RN - 0 (Receptors, AMPA) RN - 0 (Receptors, Kainic Acid) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 6384-92-5 (N-Methylaspartate) RN - 77521-29-0 (alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid) RN - 8OC22C1B99 (Quisqualic Acid) RN - H9Y79VD43J (Strychnine) RN - SIV03811UC (Kainic Acid) RN - TE7660XO1C (Glycine) SB - IM MH - Animals MH - Electrophysiology MH - Glycine/pharmacology MH - Ion Channels/*drug effects MH - Kainic Acid/pharmacology MH - N-Methylaspartate/pharmacology MH - Oocytes/*chemistry/*ultrastructure MH - Quisqualic Acid/pharmacology MH - RNA, Messenger/administration & dosage MH - Rats MH - Receptors, AMPA/*agonists MH - Receptors, Kainic Acid/*agonists MH - Receptors, N-Methyl-D-Aspartate/*agonists MH - Strychnine/*pharmacology MH - Xenopus laevis MH - alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid/pharmacology EDAT- 1995/05/01 00:00 MHDA- 1995/05/01 00:01 CRDT- 1995/05/01 00:00 PHST- 1995/05/01 00:00 [pubmed] PHST- 1995/05/01 00:01 [medline] PHST- 1995/05/01 00:00 [entrez] AID - 10.1016/0300-9629(95)98521-h [doi] PST - ppublish SO - Comp Biochem Physiol A Physiol. 1995 May;111(1):65-71. doi: 10.1016/0300-9629(95)98521-h.