For Some People, Too Much Protein Can Be Deadly—Here’s What You Need to Know About Urea Cycle Disorders

For Some People, Too Much Protein Can Be Deadly—Here’s What You Need to Know About Urea Cycle Disorders

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Urea Cycle

The urea cycle disorders are a step-by-step biochemical process that our bodies use in order to get rid of specific waste. The body has to break down proteins on a regular basis. The proteins may come from certain foods or from older cells that must be replaced. Whenever the body breaks down protein, it creates another substance called ammonia.

Ammonia is a highly toxic substance and it’s extremely difficult to excrete from the body safely. This where the urea cycle comes into play. It converts ammonia into a less toxic substance called urea, which takes place in the liver.

For Some People, Too Much Protein Can Be Deadly—Here’s What You Need to Know About Urea Cycle Disorders

Urea Cycle Disorders

If a protein that’s needed in the urea cycle isn’t working properly, it can result in a urea cycle disorder. When a urea cycle disorder occurs, ammonia will start to build up to dangerous levels. This is because it’s unable to be disposed of normally through the urea cycle.

Types

There are multiple types of these disorders that may occur, whether it’s due to a birth defect or genetics.

Here is a brief list of the types of urea cycle disorders:

  • Arginase (ARG1)
  • Ornithine translocase (ORNT1)
  • Argininosuccinic acid synthetase (ASS1)
  • Ornithine transcarbamylase (OTC)
  • Carbamoyl phosphate synthetase I (CPS1)
  • N-acetylglutamate synthase (NAGS)
  • Citrin

Symptoms of a Urea Cycle Disorder

These disorders usually cause symptoms that affect both the brain and the nervous system. The severity of the disorder and the symptoms depend on two factors; the severity of the enzyme and genetic defect. There are rare cases where someone has proteins that either work poorly or not at all.

The symptoms may include:

  • Organ failure
  • Vomiting
  • Unable to eat
  • Seizures
  • Coma
  • Death

Diagnosis

Diagnosing a urea cycle disorder starts with a careful examination of medical history, a physical exam and medical testing. The doctor is going to need a thorough understanding of the symptoms you’re experiencing and any potential signs to the disorder.

Whenever someone begins experiencing random psychiatric or neurological symptoms, a doctor has to take into consideration the possibility of abnormal levels of ammonia.

Treatment

As soon as a urea cycle disorder is first detected, it’s crucial that the ammonia levels are decreased. A form of dialysis will be needed to reduce the amount of ammonia in your blood quickly.

However, the type of dialysis that’s used depends on your age, availability and how severe the illness is. In very severe cases, the only way to treat this disorder is with a liver transplant.

Final Words

Learning that your child has a severe genetic disease is something no parent wants to hear. Most patients are diagnosed when they’re extremely ill and require immediate medical attention. However, you’re not alone as there are many other families who have and are still going through the same thing.

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