THE EPIDEMIOLOGY OF NEURAL-TUBE DEFECTS - A MATHEMATICAL-MODEL

被引:8
|
作者
VANROOTSELAAR, FJ
机构
[1] 7573 BV Oldenzaal
关键词
D O I
10.1016/0306-9877(93)90039-S
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
The incidence of neural tube defects (NTDs) shows a seasonal variation; and incidence as well as female/male ratio show a relation with latitude. The interrelation of these phenomena is presented as a mathematical model, which has a 'predictive' value, and is an instrument in estimating the local gene frequency. The model offer's a simple explanation of the conundrum why the double X-chromosome has a variable influence on the sex ratio. UV light and the herpes virus fit in this model as related causative factors of NTDs.
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页码:78 / 82
页数:5
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