Τόμος 22 (2008) – Τεύχος 2 – Άρθρο 104 – Επιθεώρηση Κλινικής Φαρμακολογίας και Φαρμακοκινητικής-Διεθνής Έκδοση – Volume 22 (2008) – Issue 2 – Article 104 – Epitheorese Klinikes Farmakologias και Farmakokinetikes-International Edition

Title Effect of somatostatinergic analogues on the ischemia-induced release of [3H]-D-Aspartate and [3H]-GABA from rat retina and hippocampus
Authors V. Sourlas, V. Athanasiou and A. Vasilaki

Lab of Pharmacology, Faculty of Medicine, University of Thessaly, Larissa, Greece

Citation Sourlas, V., Athanasiou, V., Vasilaki, A.: Effect of somatostatinergic analogues on the ischemia-induced release of [3H]-D-Aspartate and [3H]-GABA from rat retina and hippocampus, Epitheorese Klin. Farmakol. Farmakokinet. 22(2): 327-328 (2008)
Publication Date 23-25 May 2008
Full Text Language English
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Keywords In vitro ischemia, retina, hippocampus, superfusion, somatostatin.
Other Terms Review article
Summary The modulation of the enhanced release of [3H]-D-Aspartate and [3H]GABA following ischemia-like conditions was studied in rat retinal and hippocampal preparations using a superfusion system. Ischemia was simulated by a glucose-free medium equilibrated with 95%N2/5%CO2. In this model the potential neuroprotective effect somatostatin on [3H]-D-Aspartate and [3H]GABA release induced by ischemia-like conditions were investigated.  Retina was more resistant to ischemia compared to hippocampus. Somatostatin (SRIF-14) decreased ischemia-induced [3H]GABA release in both retina and hippocampus while the sst2/5 somatostatin receptor selective agonist Octreotide decreased and the sst2 somatostatin receptor selective antagonist D-Tyr8 CYN 154806 increased the ischemia-induced [3H]-D-Aspartate from both retinal and hippocampal preparations indicating that endogenous somatostatin plays a neuroprotective role in both tissues through sst2 receptor activation, at least as far as the ischemia-induced [3H]-D-Aspartate release is concerned.
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