نتایج جستجو برای: neural tube defects
تعداد نتایج: 489606 فیلتر نتایج به سال:
What Are Neural Tube Defects? Neural tube defects are problems with the cranium (brain and skull) or spine (spinal cord and backbone) that can occur in fetuses during early pregnancy. These problems occur when the neural tube, an important embryonic structure, does not close properly. The 2 major types of neural tube defects are anencephaly (in which parts of the brain are not formed properly) ...
OBJECTIVE To study the association between "pregnancy" prevalence (affected births and terminations) of neural tube defects in postcode districts of Glasgow and lead concentrations in domestic water. SETTING Postcode districts of Glasgow supplied by water from the Loch Katrine reservoir. DESIGN An ecological study. Lead concentrations from 1911 randomly selected domestic water samples were ...
We tested the hypothesis that Cache Valley Virus (CVV), an endemic North American bunyavirus, may be involved in the pathogenesis of human neural tube defects. This investigation followed a 1990 and 1991 south Texas outbreak of neural tube defects with a high prevalence of anencephaly and the demonstration in 1987 that in utero infection by CVV was the cause of outbreaks of central nervous syst...
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 ...
Background: Neural tube defects are common and major birth defects. Their incidence varies according to the geographic conditions, race, sex of the baby and certain maternal conditions. This study was conducted to determine the incidence of neural tube defects and its risk factors in Peshawar. Material and Methods: It was retrospective study of deliveries at Gynae A unit of Lady Reading Hospita...
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