PMID- 18604298 OWN - NLM STAT- MEDLINE DCOM- 20081030 LR - 20240323 IS - 1687-5443 (Electronic) IS - 2090-5904 (Print) IS - 1687-5443 (Linking) VI - 2008 DP - 2008 TI - Effect of prenatal protein malnutrition on long-term potentiation and BDNF protein expression in the rat entorhinal cortex after neocortical and hippocampal tetanization. PG - 646919 LID - 10.1155/2008/646919 [doi] LID - 646919 AB - Reduction of the protein content from 25 to 8% casein in the diet of pregnant rats results in impaired neocortical long-term potentiation (LTP) of the offspring together with lower visuospatial memory performance. The present study was aimed to investigate whether this type of maternal malnutrition could result in modification of plastic capabilities of the entorhinal cortex (EC) in the adult progeny. Unlike normal eutrophic controls, 55-60-day-old prenatally malnourished rats were unable to develop LTP in the medial EC to tetanizing stimulation delivered to either the ipsilateral occipital cortex or the CA1 hippocampal region. Tetanizing stimulation of CA1 also failed to increase the concentration of brain-derived neurotrophic factor (BDNF) in the EC of malnourished rats. Impaired capacity of the EC of prenatally malnourished rats to develop LTP and to increase BDNF levels during adulthood may be an important factor contributing to deficits in learning performance having adult prenatally malnourished animals. FAU - Hernandez, Alejandro AU - Hernandez A AD - Department of Biology, Faculty of Chemistry and Biology, University of Santiago of Chile, 3363 Avenida Alameda Bernardo O'Higgins, 9170022 Santiago, Chile. ahernand@lauca.usach.cl FAU - Burgos, Hector AU - Burgos H FAU - Mondaca, Mauricio AU - Mondaca M FAU - Barra, Rafael AU - Barra R FAU - Nunez, Hector AU - Nunez H FAU - Perez, Hernan AU - Perez H FAU - Soto-Moyano, Ruben AU - Soto-Moyano R FAU - Sierralta, Walter AU - Sierralta W FAU - Fernandez, Victor AU - Fernandez V FAU - Olivares, Ricardo AU - Olivares R FAU - Valladares, Luis AU - Valladares L LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Neural Plast JT - Neural plasticity JID - 100883417 RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Animals MH - Animals, Newborn MH - Brain-Derived Neurotrophic Factor/*biosynthesis/deficiency MH - Entorhinal Cortex/growth & development/metabolism MH - Female MH - Gene Expression Regulation, Developmental/physiology MH - Hippocampus/growth & development/*metabolism MH - Learning Disabilities/metabolism/physiopathology MH - Long-Term Potentiation/*physiology MH - Male MH - Malnutrition/metabolism MH - Neocortex/growth & development/*metabolism MH - Pregnancy MH - Prenatal Exposure Delayed Effects/metabolism/*physiopathology MH - Protein Deficiency/*metabolism MH - Rats MH - Rats, Sprague-Dawley PMC - PMC2442167 EDAT- 2008/07/08 09:00 MHDA- 2008/10/31 09:00 PMCR- 2008/06/30 CRDT- 2008/07/08 09:00 PHST- 2008/02/05 00:00 [received] PHST- 2008/05/30 00:00 [accepted] PHST- 2008/07/08 09:00 [pubmed] PHST- 2008/10/31 09:00 [medline] PHST- 2008/07/08 09:00 [entrez] PHST- 2008/06/30 00:00 [pmc-release] AID - 10.1155/2008/646919 [doi] PST - ppublish SO - Neural Plast. 2008;2008:646919. doi: 10.1155/2008/646919.