PMID- 11943506 OWN - NLM STAT- MEDLINE DCOM- 20020827 LR - 20190922 IS - 0892-0362 (Print) IS - 0892-0362 (Linking) VI - 24 IP - 2 DP - 2002 Mar-Apr TI - Long-lasting effects of prenatal MAM treatment on water maze performance in rats: associations with altered brain development and neurotrophin levels. PG - 179-91 AB - We previously reported that prenatal methylazoxymethanol (MAM) administered on days 11 and 12 of rat pregnancy induces structural changes in the cytoarchitecture of the hippocampal-entorhinal axis. We also showed that young and middle-aged prenatally treated MAM animals displayed changes in brain neurotrophin levels [Neurosci. Lett. 309 (2001) 113; Physiol. Behav. 71 (2000) 57.]. To continue this line of investigation, the working hypothesis adopted was that prenatal MAM administration, by interfering with limbic neurogenesis, could impair learning and memory ability of aged animals in the water maze. It was found that injection of MAM during early rat brain development induced deficits in both the acquisition and retention phases of the Morris maze. These behavioral changes were associated with significant changes in brain nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF), reduced choline acetyltransferase (ChAT) immunoreactivity in forebrain cholinergic neurons and loss of neuropeptide Y (NPY) immunodistribution in cells of the entorhinal cortex. This finding, as well as confirming previous studies showing that injection of prenatal MAM administration induces significant changes in hippocampal-entorhinal axis neurogenesis and marked behavioral deficits in adult life, provides additional experimental evidence supporting the hypothesis that loss of NGF and/or BDNF-receptive or producing cells can co-occur at the onset of neurodevelopmental disorders. FAU - Fiore, Marco AU - Fiore M AD - Istituto di Neurobiologia e Medicina Molecolare, CNR, Viale Marx, 43/15, 00137 Rome, Italy. FAU - Korf, Jakob AU - Korf J FAU - Antonelli, Alessia AU - Antonelli A FAU - Talamini, Lucia AU - Talamini L FAU - Aloe, Luigi AU - Aloe L LA - eng PT - Journal Article PL - United States TA - Neurotoxicol Teratol JT - Neurotoxicology and teratology JID - 8709538 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neuropeptide Y) RN - 0 (Teratogens) RN - 592-62-1 (Methylazoxymethanol Acetate) RN - 9061-61-4 (Nerve Growth Factor) RN - EC 2.3.1.6 (Choline O-Acetyltransferase) RN - JGG19N3YDQ (methylazoxymethanol) SB - IM MH - Animals MH - Basal Ganglia/metabolism MH - Brain/growth & development/*metabolism MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Choline O-Acetyltransferase/metabolism MH - Entorhinal Cortex/cytology/metabolism MH - Female MH - Hippocampus/cytology/metabolism MH - Immunohistochemistry MH - Maze Learning/*drug effects MH - Methylazoxymethanol Acetate/*analogs & derivatives/*toxicity MH - Nerve Growth Factor/*metabolism MH - Neurons/enzymology MH - Neuropeptide Y/metabolism MH - Pregnancy MH - *Prenatal Exposure Delayed Effects MH - Rats MH - Rats, Wistar MH - Teratogens/*toxicity EDAT- 2002/04/12 10:00 MHDA- 2002/08/28 10:01 CRDT- 2002/04/12 10:00 PHST- 2002/04/12 10:00 [pubmed] PHST- 2002/08/28 10:01 [medline] PHST- 2002/04/12 10:00 [entrez] AID - S0892036201002148 [pii] AID - 10.1016/s0892-0362(01)00214-8 [doi] PST - ppublish SO - Neurotoxicol Teratol. 2002 Mar-Apr;24(2):179-91. doi: 10.1016/s0892-0362(01)00214-8.