PMID- 17590450 OWN - NLM STAT- MEDLINE DCOM- 20071012 LR - 20191210 IS - 0166-4328 (Print) IS - 0166-4328 (Linking) VI - 182 IP - 1 DP - 2007 Aug 22 TI - The effects of energy-rich diets on discrimination reversal learning and on BDNF in the hippocampus and prefrontal cortex of the rat. PG - 57-66 AB - Male rats received normal chow or high-fat diets rich in dextrose (HFD) or sucrose (HFS). Half of the rats received 90-day unrestricted access to their diet prior to training, whereas the other half were food restricted throughout the study. We evaluated the effects of these dietary manipulations on discrimination and reversal performance and on post-training levels of brain-derived neurotrophic factor (BDNF) in the prefrontal cortex and the ventral and dorsal hippocampus. Neither diet nor restriction condition affected discrimination acquisition. However, prior unrestricted access to the HFD diet impaired discrimination reversal learning and reduced BDNF in the prefrontal cortex and ventral hippocampus. Also, rats given the HFD diet responded more than controls to the previously rewarded cue at the outset of discrimination reversal. The results suggest that consumption of the HFD diet may have had enduring effects on learning processes, some of which may contribute to the control of intake regulation. FAU - Kanoski, Scott E AU - Kanoski SE AD - The Ingestive Behavior Research Center, Purdue University, IN, USA. skanoski@purdue.edu FAU - Meisel, Robert L AU - Meisel RL FAU - Mullins, Amanda J AU - Mullins AJ FAU - Davidson, Terry L AU - Davidson TL LA - eng GR - R01 DA13680/DA/NIDA NIH HHS/United States GR - R01 HD028792/HD/NICHD NIH HHS/United States GR - R01 HD028792-13/HD/NICHD NIH HHS/United States GR - R01 DA013680/DA/NIDA NIH HHS/United States GR - R01 HD29792/HD/NICHD NIH HHS/United States GR - R01 HD028792-14/HD/NICHD NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20070522 PL - Netherlands TA - Behav Brain Res JT - Behavioural brain research JID - 8004872 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Dietary Fats) SB - IM MH - Analysis of Variance MH - Animals MH - Avoidance Learning/*physiology MH - Behavior, Animal MH - Body Weight MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Dietary Fats/*administration & dosage MH - Discrimination, Psychological/*physiology MH - Hippocampus/*physiology MH - Male MH - Prefrontal Cortex/*physiology MH - Rats MH - Rats, Sprague-Dawley PMC - PMC2042136 MID - NIHMS27668 EDAT- 2007/06/26 09:00 MHDA- 2007/10/13 09:00 PMCR- 2008/08/22 CRDT- 2007/06/26 09:00 PHST- 2007/02/08 00:00 [received] PHST- 2007/04/26 00:00 [revised] PHST- 2007/05/07 00:00 [accepted] PHST- 2007/06/26 09:00 [pubmed] PHST- 2007/10/13 09:00 [medline] PHST- 2007/06/26 09:00 [entrez] PHST- 2008/08/22 00:00 [pmc-release] AID - S0166-4328(07)00251-3 [pii] AID - 10.1016/j.bbr.2007.05.004 [doi] PST - ppublish SO - Behav Brain Res. 2007 Aug 22;182(1):57-66. doi: 10.1016/j.bbr.2007.05.004. Epub 2007 May 22.