FOlIC ACID
Neural tube defects.
Before the mid-1990s, about three quarters of neural tube defects could be traced to low folate levels in the mother. Since foods (mostly cereals) and prenatal vitamins now contain folate, there has been a 75% decrease in the rate of neural tube defects in the U.S. So, nowadays, the percentage of neural tube defects related to the mother's lack of folate intake is quite small, although the exact percentage has not been studied.
Folic acid.
malnourished,uncompleted body parts,not improved senses of organ.
Alpha fetoprotein is elevated when there are neural tube defects such as spina bifida.
Folic acid.
Vitamin B9 (Folate) deficiency can lead to neural tube defect (NTD) and the main source of it is green vegetables. That's why any woman who plans on getting pregnant should consume sufficient amounts of B9 because the neural tube closes 27 days after conception meaning before a woman even knows she's pregnant!
Folate deficiency may lead to glossitis, diarrhea, depression, confusion, anemia, and fetal neural tube defects and brain defects (during pregnancy).
Folic acid anemia is a known risk factor for neural tube birth defects.
Spina bifida occurs during the first trimester. Spina bifida is in a class of birth defects known as neural tube defects. The neural tube eventually develops into the spinal cord, brain and the tissues that enclose them. In a normal pregnancy the tube forms early and closes by the twenty eighth day. With spina bifida portions of the neural tube fail to develop properly causing defects of varying severity in the spinal cord and back bones. This is a complicated topic and you can read more about it at the related link.
The most common one is Folic acid or folate which is a B vitamin. It is also referred to as vitamin B₉.
In the embryo the neural tube forms the central nervous system in the fetus, which is the brain and spinal cord. The reason pregnant women are given folic acid supplementation is to help prevent neural tube defects, which can range from fairly benign all the way to anencephaly (where the baby is born without a brain).