There is no definitive way to prevent down’s syndrome yet. However, there are ongoing studies regarding using folic acid and cobalamin to prevent it.
There is evidence that suggests that there is a link between down’s syndrome and a defect in folate and methylcobalamin metabolism. There are supplementation policies that are used currently to prevent NTDs (Neural Tube Diseases). These supplementations may incidentally prevent down’s syndrome, if a sufficiently high dose of folic acid and possibly cobalamin is used.
Studies also state that women can reduce the risk of down’s syndrome in their children if they have children by the age of 30. The CDC (Center for Disease Control and Prevention) recommends avoiding alcohol and smoking cigarettes or marijuana during pregnancy to prevent birth defects. It further states that there is no known safe amount or time of tobacco and marijuana use during pregnancy or while trying to get pregnant.
If you already have one child with down’s syndrome or you’re at high risk of having a child with down’s syndrome, you can consult a genetic counsellor before becoming pregnant. A genetic counsellor can help you understand your chances of having a child with down’s syndrome. They can also explain the prenatal tests that are available and the pros and cons of testing.
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