PMID- 10465689 OWN - NLM STAT- MEDLINE DCOM- 19990825 LR - 20190726 IS - 0028-3908 (Print) IS - 0028-3908 (Linking) VI - 38 IP - 6 DP - 1999 Jun TI - Prenatal methylazoxymethanol acetate alters behavior and brain NGF levels in young rats: a possible correlation with the development of schizophrenia-like deficits. PG - 857-69 AB - It has been hypothesized that a deleterious key contribution to schizophrenia (SZ) development is a failure of migration and setting of young neurons into their appropriate cortical target sites, particularly in the entorhinal cortex (EC). To test this hypothesis in an animal model, we injected, in pregnant rats, on gestational day (GD) 9, or 10, or 11, or 12, the antimitotic compound methylazoxymethanolacetate (MAM) known to cause EC neuronal loss. We investigated whether or not EC disruption during prenatal development is able to affect behavior, including memory and learning, and brain nerve growth factor (NGF). Prenatally MAM treated young rats didn't display gross behavioral changes in social interaction, open-field and novel object investigation tests. By contrast, GD11 and GD12 MAM treated rats had a retardation in passive avoidance acquisition, while, in GD12 animals, pain sensitivity was reduced. GD12 animals also showed increased NGF in the EC and remaining cortex. MAM treated animals showed no changes in paw NGF or substance P levels suggesting that the altered nociceptive response is not related to local downregulation of these two molecules. The possibility that these behavioral and biochemical alterations might be associated with the onset of SZ is discussed. FAU - Fiore, M AU - Fiore M AD - Institute of Neurobiology, CNR, Rome, Italy. FAU - Talamini, L AU - Talamini L FAU - Angelucci, F AU - Angelucci F FAU - Koch, T AU - Koch T FAU - Aloe, L AU - Aloe L FAU - Korf, J AU - Korf J LA - eng PT - Comparative Study PT - Journal Article PL - England TA - Neuropharmacology JT - Neuropharmacology JID - 0236217 RN - 0 (Nerve Growth Factors) RN - 33507-63-0 (Substance P) RN - 592-62-1 (Methylazoxymethanol Acetate) SB - IM MH - Analysis of Variance MH - Animals MH - Avoidance Learning/drug effects MH - Behavior, Animal/*drug effects MH - Brain/*drug effects/metabolism MH - Disease Models, Animal MH - Exploratory Behavior/drug effects MH - Female MH - Methylazoxymethanol Acetate/*toxicity MH - Nerve Growth Factors/*metabolism MH - Pregnancy MH - *Prenatal Exposure Delayed Effects MH - Rats MH - Rats, Wistar MH - Schizophrenia/*chemically induced MH - Social Behavior MH - Substance P/analysis EDAT- 1999/08/28 00:00 MHDA- 1999/08/28 00:01 CRDT- 1999/08/28 00:00 PHST- 1999/08/28 00:00 [pubmed] PHST- 1999/08/28 00:01 [medline] PHST- 1999/08/28 00:00 [entrez] AID - S0028390899000076 [pii] AID - 10.1016/s0028-3908(99)00007-6 [doi] PST - ppublish SO - Neuropharmacology. 1999 Jun;38(6):857-69. doi: 10.1016/s0028-3908(99)00007-6.