CAUSES OF HIGH AMMONIA. Ammonia is a normal by-product of processing nitrogen in the body, and is excreted as waste in the urine, in healthy people. However, elevated blood ammonia levels can occur when the kidneys or liver are not working properly, allowing this waste to remain in the bloodstream, which can be poisonous to your cells.
Spina bifida research scientists are looking at a possible genetic cause of spina bifida. The goal of this research is to find the genetic factors that make some children more susceptible to neural tube defects than others.
Spina Bifida: Effects, Risks, Diagnosis and Prevention. Spina bifida is a neural tube defect that affects approximately 3,000 pregnancies each year. Although the occurrences appear to be decreasing, spina bifida occurs in approximately 7 of out every 10,000 live births in the United States.n fact, 95% of neural tube defects (NTDs) occur in women with no personal or family history of NTDs. However, according to the Centers for Disease Control and Prevention (CDC), here are some risk factors that are known to increase the risk of a NTD: