High ammonia levels are toxic and cause symptoms such as headache ... Sometimes, it may also result in a coma or death. Urea cycle disorders: The urea cycle is a metabolic pathway in the liver ...

Stress and some conditions can increase cortisol levels. High cortisol can cause symptoms such as weight gain, acne, and fatigue. Doctors may refer to high cortisol as Cushing syndrome or ...

The Huntington’s study also showed that the high urea levels occurred before dementia sets in ... because the kidneys are unable to eliminate them, for example, serious symptoms can result. Professor ...