Document Detail


Maternal obesity affects gene expression and cellular development in fetal brains.
MedLine Citation:
PMID:  23006985     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVES: Female rat neonates reared on a high carbohydrate (HC) milk formula developed chronic hyperinsulinemia and adult-onset obesity (HC phenotype). Furthermore, we have shown that fetal development in the HC intrauterine environment (maternal obesity complicated with hyperinsulinemia, hyperleptinemia, and increased levels of proinflammatory markers) resulted in increased levels of serum insulin and leptin in term HC fetuses and the spontaneous transfer of the HC phenotype to the adult offspring. The objectives of this study are to identify changes in global gene expression pattern and cellular development in term HC fetal brains in response to growth in the adverse intrauterine environment of the obese HC female rat. METHODS: GeneChip analysis was performed on total RNA obtained from fetal brains for global gene expression studies and immunohistochemical analysis was performed on fetal brain slices for investigation of cellular development in term HC fetal brains. RESULTS: Gene expression profiling identified changes in several clusters of genes that could contribute to the transfer of the maternal phenotype (chronic hyperinsulinemia and adult-onset obesity) to the HC offspring. Immunohistochemical analysis indicated diminished proliferation and neuronal maturation of stem-like cells lining the third ventricle, hypothalamic region, and the cerebral cortex in HC fetal brains. DISCUSSION: These results suggest that maternal obesity during pregnancy could alter the developmental program of specific fetal brain cell-networks. These defects could underlie pathologies such as metabolic syndrome and possibly some neurological disorders in the offspring at a later age.
Authors:
Ewa K Stachowiak; Saji Oommen; Vihas T Vasu; Malathi Srinivasan; Michal Stachowiak; Kishorchandra Gohil; Mulchand S Patel
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-18
Journal Detail:
Title:  Nutritional neuroscience     Volume:  -     ISSN:  1476-8305     ISO Abbreviation:  Nutr Neurosci     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100892202     Medline TA:  Nutr Neurosci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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