PMID- 26433146 OWN - NLM STAT- MEDLINE DCOM- 20160915 LR - 20191210 IS - 1872-7549 (Electronic) IS - 0166-4328 (Linking) VI - 297 DP - 2016 Jan 15 TI - Brain-derived neurotrophic factor into adult neocortex strengthens a taste aversion memory. PG - 1-4 LID - S0166-4328(15)30206-0 [pii] LID - 10.1016/j.bbr.2015.09.034 [doi] AB - Nowadays, it is known that brain derived neurotrophic-factor (BDNF) is a protein critically involved in regulating long-term memory related mechanisms. Previous studies from our group in the insular cortex (IC), a brain structure of the temporal lobe implicated in acquisition, consolidation and retention of conditioned taste aversion (CTA), demonstrated that BDNF is essential for CTA consolidation. Recent studies show that BDNF-TrkB signaling is able to mediate the enhancement of memory. However, whether BDNF into neocortex is able to enhance aversive memories remains unexplored. In the present work, we administrated BDNF in a concentration capable of inducing in vivo neocortical LTP, into the IC immediately after CTA acquisition in two different conditions: a "strong-CTA" induced by 0.2M lithium chloride i.p. as unconditioned stimulus, and a "weak-CTA" induced by 0.1M lithium chloride i.p. Our results show that infusion of BDNF into the IC converts a weak CTA into a strong one, in a TrkB receptor-dependent manner. The present data suggest that BDNF into the adult insular cortex is sufficient to increase an aversive memory-trace. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - Martinez-Moreno, Araceli AU - Martinez-Moreno A AD - Division de Investigacion y Estudios de Posgrado, Facultad de Psicologia, Universidad Nacional Autonoma de Mexico, Mexico D.F., Mexico. FAU - Rodriguez-Duran, Luis F AU - Rodriguez-Duran LF AD - Division de Investigacion y Estudios de Posgrado, Facultad de Psicologia, Universidad Nacional Autonoma de Mexico, Mexico D.F., Mexico. FAU - Escobar, Martha L AU - Escobar ML AD - Division de Investigacion y Estudios de Posgrado, Facultad de Psicologia, Universidad Nacional Autonoma de Mexico, Mexico D.F., Mexico. Electronic address: mescobar@unam.mx. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151001 PL - Netherlands TA - Behav Brain Res JT - Behavioural brain research JID - 8004872 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Nootropic Agents) RN - G4962QA067 (Lithium Chloride) SB - IM MH - Animals MH - Avoidance Learning/*drug effects/physiology MH - Brain-Derived Neurotrophic Factor/*pharmacology MH - Catheters, Indwelling MH - Conditioning, Psychological/drug effects/physiology MH - Lithium Chloride MH - Male MH - Memory/*drug effects/physiology MH - Microinjections MH - Neocortex/*drug effects/physiology MH - Nootropic Agents/*pharmacology MH - Rats, Wistar MH - Taste Perception/*drug effects/physiology MH - Water Deprivation OTO - NOTNLM OT - BDNF OT - CTA OT - Memory enhancement EDAT- 2015/10/04 06:00 MHDA- 2016/09/16 06:00 CRDT- 2015/10/04 06:00 PHST- 2015/08/07 00:00 [received] PHST- 2015/09/23 00:00 [revised] PHST- 2015/09/25 00:00 [accepted] PHST- 2015/10/04 06:00 [entrez] PHST- 2015/10/04 06:00 [pubmed] PHST- 2016/09/16 06:00 [medline] AID - S0166-4328(15)30206-0 [pii] AID - 10.1016/j.bbr.2015.09.034 [doi] PST - ppublish SO - Behav Brain Res. 2016 Jan 15;297:1-4. doi: 10.1016/j.bbr.2015.09.034. Epub 2015 Oct 1.