نتایج جستجو برای: neural tube defect
تعداد نتایج: 468234 فیلتر نتایج به سال:
Closure of the neural tube during embryogenesis is a crucial step in development of the central nervous system. Failure of this process results in neural tube defects, including spina bifida and anencephaly, which are among the most common birth defects worldwide. Maternal use of folic acid supplements reduces risk of neural tube defects but a proportion of cases are not preventable. Folic acid...
Folate is the generic name for all derivatives of the B a controlled dietary intervention study that a diet high in vitamin with the biological activity of pteroylmonogdietary folate from vegetables and citrus fruit (560 mg/d) lutamic acid. Folic acid is the fully oxidised monoglutadecreased plasma total homocysteine concentrations and mate form of the vitamin, whereas the other naturally impro...
The genetic control of mammalian epithelial polarity and dynamics can be studied in vivo at cellular resolution during morphogenesis of the mouse neural tube. Themouse neural plate is a simple epithelium that is transformed into a columnar pseudostratified tube over the course of ∼24 h. Apical F-actin is known to be important for neural tube closure, but the precise roles of actin dynamics in t...
Hectd1 mutant mouse embryos exhibit the neural tube defect exencephaly associated with abnormal cranial mesenchyme. Cellular rearrangements in cranial mesenchyme are essential during neurulation for elevation of the neural folds. Here we investigate the molecular basis of the abnormal behavior of Hectd1 mutant cranial mesenchyme. We demonstrate that Hectd1 is a functional ubiquitin ligase and t...
The genetic control of mammalian epithelial polarity and dynamics can be studied in vivo at cellular resolution during morphogenesis of the mouse neural tube. Themouse neural plate is a simple epithelium that is transformed into a columnar pseudostratified tube over the course of ∼24 h. Apical F-actin is known to be important for neural tube closure, but the precise roles of actin dynamics in t...
BACKGROUND 94% of all birth defects (BD) and 95% of deaths due to the BD occur in low and middle income countries, many of which are preventable. In Tanzania, there is currently a paucity of BD data necessary to develop data informed prevention activities. METHODS A cross-sectional analysis was conducted of deliveries identified with BD in the labor ward registers at four Dar es Salaam hospit...
OBJECTIVES To evaluate the effectiveness of policies and recommendations on folic acid aimed at reducing the occurrence of neural tube defects. DESIGN Retrospective cohort study of births monitored by birth defect registries. SETTING 13 birth defects registries monitoring rates of neural tube defects from 1988 to 1998 in Norway, Finland, Northern Netherlands, England and Wales, Ireland, Fra...
Objectives To evaluate the effectiveness of policies and recommendations on folic acid aimed at reducing the occurrence of neural tube defects. Design Retrospective cohort study of births monitored by birth defect registries. Setting 13 birth defects registries monitoring rates of neural tube defects from 1988 to 1998 in Norway, Finland, Northern Netherlands, England and Wales, Ireland, France ...
Planar-cell-polarity (PCP) signalling is necessary for initiation of neural tube closure in higher vertebrates. In mice with PCP gene mutations, a broad embryonic midline prevents the onset of neurulation through wide spacing of the neural folds. In order to evaluate the role of convergent extension in this defect, we vitally labelled the midline of loop-tail (Lp) embryos mutant for the PCP gen...
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