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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
16
pubmed:dateCreated
2008-11-21
pubmed:abstractText
Maternal diabetes causes congenital malformations in various organs including the neural tube in fetuses. In this study, we have analyzed the differential gene expression profiling in the cranial neural tube of embryos from diabetic and control mice by using the oligonucleotide microarray. Expression patterns of genes and proteins that are differentially expressed in the cranial neural tube were further examined by the real-time reverse transcriptase-polymerase chain reaction, in situ hybridization, and immunohistochemistry. Proliferation index and apoptosis were examined by BrdU (5-bromo-2-deoxyuridine) labeling and TUNEL (terminal deoxynucleotidyl transferase dUTP nick-end labeling) assay, respectively. Embryos (E11.5) of diabetic pregnancies displayed distortion in neuroepithelia of the cranial neural tube. Microarray analysis revealed that a total of 390 genes exhibited more than twofold changes in expression level in the cranial neural tube of embryos from diabetic mice. Several genes involving apoptosis, proliferation, migration, and differentiation of neurons in the cranial neural tube were differentially expressed in embryos of diabetic pregnancy. In addition, maternal diabetes perturbed the development of choroid plexus and ventricular systems and reduced the production of proteins such as Ttr and Igf2 in the developing brain, indicating that these changes could impair the survival and proliferation of neuroepithelial cells and neurogenesis in embryos of diabetic mice. It is concluded that altered expression of a variety of genes involved in brain development is associated with cranial neural tube dysmorphogenesis that may subsequently contribute to intellectual impairment of the offspring of a diabetic mother.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1097-4547
pubmed:author
pubmed:copyrightInfo
(c) 2008 Wiley-Liss, Inc.
pubmed:issnType
Electronic
pubmed:volume
86
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3481-93
pubmed:meshHeading
pubmed-meshheading:18655203-Animals, pubmed-meshheading:18655203-Apoptosis, pubmed-meshheading:18655203-Body Patterning, pubmed-meshheading:18655203-Brain, pubmed-meshheading:18655203-Cell Differentiation, pubmed-meshheading:18655203-Cell Lineage, pubmed-meshheading:18655203-Cell Proliferation, pubmed-meshheading:18655203-Cerebral Ventricles, pubmed-meshheading:18655203-Diabetes Complications, pubmed-meshheading:18655203-Diabetes Mellitus, Experimental, pubmed-meshheading:18655203-Disease Models, Animal, pubmed-meshheading:18655203-Female, pubmed-meshheading:18655203-Gene Expression Regulation, Developmental, pubmed-meshheading:18655203-Male, pubmed-meshheading:18655203-Mice, pubmed-meshheading:18655203-Nerve Tissue Proteins, pubmed-meshheading:18655203-Neural Tube, pubmed-meshheading:18655203-Neural Tube Defects, pubmed-meshheading:18655203-Neurons, pubmed-meshheading:18655203-Pregnancy, pubmed-meshheading:18655203-Stem Cells
pubmed:year
2008
pubmed:articleTitle
Global gene expression analysis of cranial neural tubes in embryos of diabetic mice.
pubmed:affiliation
Molecular Neurobiology Laboratory, Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't