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.
This is the theory that the susceptibility or predisposition to vitiligo is genetic, and that some defect in the genetic structure, makes people more susceptible to vitiligo. While we do see vitiligo in more than one family member about 20% of the time, about 80% of patients report no other family members with vitiligo.