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dc.contributor.authorAl-Masmudi-Martín, Mariam
dc.contributor.authorPosadas, S. J.
dc.contributor.authorNavarro-Lobato, I.
dc.contributor.authorDelgado, Gloria
dc.contributor.authorBashir, Z.I.
dc.contributor.authorkhan, Z.U.
dc.date.accessioned2014-07-11T07:49:28Z
dc.date.available2014-07-11T07:49:28Z
dc.date.created2014-07-06
dc.date.issued2014-07-11
dc.identifier.urihttp://hdl.handle.net/10630/7804
dc.description.abstractParticipation of perirhinal and frontal cortices in processing of object recognition memory has long been recognized, however, recently our laboratory extended this to area V2 of visual cortex. We observed that RGS14414-mediated activation of area V2 neurons leads to an enormous increase in object recognition memory. This memory enhancement was of such extent that it converted short term memory of 45 minutes into long lasting long-term memory that could be traced even after many months. Here, we have tested the memory enhancer effect of RGS14414 in perirhinal cortex, an area intimately involved in processing of object memory. A relationship of behavioral performance of RGS14414-treated rats with electrophysiological synaptic plasticity was investigated. Stimulation of perirhinal cortex with RGS14414 produced an equally robust increase in object recognition memory as was observed in area V2. Further, we found that RGS14414-mediated activation of perirhinal cortex, (i) blocked the depotentiation induced by 1Hz stimulation during 10min; (ii) blocked the LTP induced by 20Hz stimulation while showed no effect at 100Hz stimulation; and (iii) reduced the LTD induced by the application of 20µM carbachol, a cholinergic receptor agonist, during 10min, however no effect was observed at a higher concentration (50µM). Furthermore, we also observed that phosphorylated isoforms of AMPA receptor 1 and 2 (iGluR1 & iGluR2) were significantly reduced. Thus, our results indicate that iGluRs reflects the level of synaptic plasticity (LTP and LTD) observed in RGS-animals but lack this correlation with enhanced memory behavior. This work was supported by projects from MINECO, Junta de Andalucía y NIH.es_ES
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.es_ES
dc.language.isoenges_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectMemoriaes_ES
dc.subject.otherRGS14es_ES
dc.subject.otherMEMORYes_ES
dc.subject.otherPERIRHINAL CORTEXes_ES
dc.subject.otherSYNAPTIC PLASTICITYes_ES
dc.titleRole of RGS14(414) in object recognition memory and regulation of synaptic plasticity in perirhinal cortexes_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.centroFacultad de Medicinaes_ES
dc.relation.eventtitle9th FENS Forum of Neurosciencees_ES
dc.relation.eventplaceMilan, Italyes_ES
dc.relation.eventdateJuly 5-9, 2014es_ES


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