PMID- 21624435 OWN - NLM STAT- MEDLINE DCOM- 20120224 LR - 20211020 IS - 1873-7544 (Electronic) IS - 0306-4522 (Print) IS - 0306-4522 (Linking) VI - 189 DP - 2011 Aug 25 TI - Neuroanatomic and behavioral traits for autistic disorders in age-specific restricted index selection mice. PG - 215-22 LID - 10.1016/j.neuroscience.2011.05.017 [doi] AB - The pathogenesis of neurodevelopmental disorders such as autism is believed to be influenced by interactions between genetic and environmental factors, and appropriate animal models are needed to assess the influence of such factors on relevant neurodevelopmental phenotypes. A set of inbred mouse strains (Atchley strains) including A12 (E+L0) and A22 (E-L0) were generated by age-specific restricted index selection from a baseline random-bred ICR mouse population obtained from Harlan Sprague-Dawley [Atchley et al. (1997) Genetics 146(2):629-640; Indianapolis, IN, USA). As compared with the A22 strain, A12 mice had significantly increased early (P0-P10) body weight gain with minimal changes in late (P28-P56) body weight gain. We found that these strains also differed in brain weight, brain volume, cell proliferation, and FGF-2 levels in certain brain regions. Specifically, brain weight and volume were significantly greater in A12 mice than that in A22 mice at P10 and P28. Quantitative analysis of bromodeoxyuridine (BrdU) labeling of proliferating cells showed that the number of BrdU-positive cells in the A12 strain were significantly greater in the frontal cortex and lesser in the dentate gyrus than that in the A22 strain at P28. Western blot revealed that fibroblast growth factors-2 (FGF-2), but not brain-derived neurotrophic factor (BDNF), expression was significantly increased in the frontal cortex of A12 strain at P28. Also, A12 mice exhibited decreased intra-strain social interaction and increased repetitive stereotyped behaviors at P28. Our study suggests that A12 mice may partially mimic the anatomic and behavioral traits of patients with neurodevelopmental disorders such as autism spectrum disorders, and therefore may yield insights into the developmental mechanisms involved in their pathogenesis. CI - Copyright (c) 2011 IBRO. Published by Elsevier Ltd. All rights reserved. FAU - Meng, L AU - Meng L AD - Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, USA. FAU - Lu, L AU - Lu L FAU - Murphy, K M AU - Murphy KM FAU - Yuede, C M AU - Yuede CM FAU - Cheverud, J M AU - Cheverud JM FAU - Csernansky, J G AU - Csernansky JG FAU - Dong, H AU - Dong H LA - eng GR - R01 AG025824/AG/NIA NIH HHS/United States GR - R01 AG025824-05/AG/NIA NIH HHS/United States PT - Journal Article DEP - 20110526 PL - United States TA - Neuroscience JT - Neuroscience JID - 7605074 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 103107-01-3 (Fibroblast Growth Factor 2) SB - IM MH - Age Factors MH - Animals MH - Autistic Disorder/*pathology/*psychology MH - Brain/metabolism/*pathology MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cerebral Cortex/metabolism MH - Disease Models, Animal MH - Fibroblast Growth Factor 2/metabolism MH - Grooming MH - Hippocampus/metabolism MH - Interpersonal Relations MH - Mice MH - Mice, Inbred ICR MH - Organ Size MH - Species Specificity MH - Stereotyped Behavior PMC - PMC3150457 MID - NIHMS304815 EDAT- 2011/06/01 06:00 MHDA- 2012/03/01 06:00 PMCR- 2012/08/25 CRDT- 2011/06/01 06:00 PHST- 2011/03/16 00:00 [received] PHST- 2011/04/26 00:00 [revised] PHST- 2011/05/07 00:00 [accepted] PHST- 2011/06/01 06:00 [entrez] PHST- 2011/06/01 06:00 [pubmed] PHST- 2012/03/01 06:00 [medline] PHST- 2012/08/25 00:00 [pmc-release] AID - S0306-4522(11)00549-5 [pii] AID - 10.1016/j.neuroscience.2011.05.017 [doi] PST - ppublish SO - Neuroscience. 2011 Aug 25;189:215-22. doi: 10.1016/j.neuroscience.2011.05.017. Epub 2011 May 26.