Question

In the 1990s, epidemiologic studies established that women could reduce their risk of bearing a child with neural tube birth defects by increasing their intake of ______.a) vitamin Bb) vitamin Cc) ascorbic acidd) folic acid

Answer 1

Answer:

d) folic acid

Explanation:

Neural tube defects (NTD) are birth defects that occur in some specialized regions such as the brain and spinal cord. They are considered and bethink as  a complex disorder because they are caused by combination of environmental and multiple genetic factors. Environmental factors include low folic acid intake, maternal use of certain anticonvulsant medications. etc. On the other hand multiple genetic factors can include spina bifida (an phenomena whereby there is incomplete closing of the spine and membranes surrouning the  spinal cord at the  initial stage of development of fetus in pregnancy.

During pregnancy, folate requirements increase due to the result of rapidly dividing cells related to fetal growth. It is of great advantage that pregnant woman should increase their folic acid supplements intake to (400-800μg daily)  prior to conception, this  can help and assist to reduce the risk for neural tube defects in the fetus.