neural tube defect


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neural tube defect

n.
Any of various congenital defects of the brain and spinal cord, such as spina bifida, resulting from incomplete closing of the neural tube in an embryo.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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The release states that to date, more than 2 500 women who began taking DTG after the time of conception have not reported any cases of neural tube defects and that there has been no infant born with a neural tube defect from women who started DTG after their first three months of pregnancy.
There may be a relationship between the incidence of neural tube defect and homocysteinemia.
A (https://www.nih.gov/news-events/news-releases/low-levels-vitamin-b12-may-increase-risk-neural-tube-defects) 2009 study on the risks of vitamin B12 deficiency conducted by researchers at the National Institutes of Health, Trinity College, Dublin, and Health Research Board of Ireland, found that women who do not get enough vitamin B12 during early pregnancy are five times more likely to face the risk of having a child with a neural tube defect, a class of birth defect, as compared to those women who have a higher intake and level of the vitamin in their bodies.
There exist more than 250 mouse models with neural tube defects, of which 74 are of spina bifida (Table 2) [4], yet there does not exist a single mouse gene which can be used to screen the orthologous human gene of neural tube defect nor spina bifida to date [212].
The medical community needs to keep in mind that while the folic acid fortification of flour and other products has shown dramatic effects in the overall population, as the CDC report shows, it may not meet the needs of specific populations of women who are at a greater risk of having a baby with a neural tube defect. As pointed out in the Morbidity and Mortality Weekly Report, these groups include Hispanic women, who may not consume as much folic acid or are at a greater risk of having a genetic polymorphism that makes them more susceptible to a folate insufficiency.
INTRODUCTION: Neural tube defect by definition is failure of neural tube to close during embryogenesis.
"Women planning for pregnancy should take at least 400 meg daily if they are low risk and 4,000 meg daily if they have had a child with a neural tube defect or if they take medication for epilepsy," Wilson advises.
In another study Pregestational supplementation of folate prevents neural tube defects and a daily supplemental dose of 400 g/day of folate is recommended when planning pregnancy.17Preterm infants receiving parenteral nutrition with high folic acid content have no risk of folate deficiency during the two months of age which furthers emphasizes the importance of folic acid in maternal nutrition.18It is widely accepted that adequate maternal consumption of folic acid before pregnancy and during the early weeks of gestation can reduce the risk of having a child with a neural tube defect (NTD).
But for some women who are at greater risk of having a baby with a neural tube defect, taking a 5-milligram daily folic acid supplement is recommended.
Results: Prevalence of congenital anomalies was 21.5 per 1000 total births, with individual incidence of neural tube defect being 18.81 pr 1000 total births.
One author (JGRK) was in his department when counselling for families with a child with a neural tube defect (NTD) was first introduced in Johannesburg, and when the first prenatal diagnosis was performed.