Mouse as a model for multifactorial inheritance of neural tube defects.
Mouse as a model for multifactorial inheritance of neural tube defects.
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小鼠作为神经管缺陷多因素遗传的模型。
DOI：
10.1002/bdrc.21011
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Zohn,IreneE
中科院分区：
文献类型：
--
作者：
Zohn,IreneE
Neural tube defects (NTDs) such as spina bifida and anencephaly are some of the most common structural birth defects found in humans. These defects occur due to failures of neurulation, a process where the flat neural plate rolls into a tube. In spite of their prevalence, the causes of NTDs are poorly understood. The multifactorial threshold model best describes the pattern of inheritance of NTDs where multiple undefined gene variants interact with environmental factors to cause an NTD. To date, mouse models have implicated a multitude of genes as required for neurulation, providing a mechanistic understanding of the cellular and molecular pathways that control neurulation. However, the majority of these mouse models exhibit NTDs with a Mendelian pattern of inheritance. Still, many examples of multifactorial inheritance have been demonstrated in mouse models of NTDs. These include null and hypomorphic alleles of neurulation genes that interact in a complex fashion with other genetic mutations or environmental factors to cause NTDs. These models have implicated several genes and pathways for testing as candidates for the genetic basis of NTDs in humans, resulting in identification of putative pathogenic mutations in some patients. Mouse models also provide an experimental paradigm to gain a mechanistic understanding of the environmental factors that influence NTD occurrence, such as folic acid and maternal diabetes, and have led to the discovery of additional preventative nutritional supplements such as inositol. This review provides examples of how multifactorial inheritance of NTDs can be modeled in the mouse. Birth Defects Research (Part C) 96:193–205, 2012. © 2012 Wiley Periodicals, Inc.
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DOI：
10.1073/pnas.88.11.4811
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