Phenol sulfur transferase deficiency

Imagine your body has tiny helpers called enzymes. One special helper is called Phenol sulfur transferase, or PST for short. PST is like a super-cleaner that helps get rid of yucky stuff, especially things called phenolic compounds.

These can be found in some foods or even in the air! When PST is not working as well as it should, it's called PST deficiency. This means the clean-up crew is a bit slow, and the yucky stuff might build up.

A super-smart scientist named Dr. Rosemary Waring was studying children who had autism. She noticed something interesting about some of them. She discovered that their PST helper wasn't working as strongly. This was a big discovery in the late 1990s! It was like finding a hidden piece of a puzzle about how our bodies work and why some people might feel different.

Even though PST is small, it's super important! It helps your body get rid of things that could make you feel sick. When PST is working well, it makes those yucky phenolic compounds easier for your body to push out.

If PST is not working well, these compounds might stay around longer. This can sometimes lead to feeling flushed, having a fast heartbeat, or feeling sad. It's like a tiny alarm system for your body!

When the PST helper is a bit slow, it can cause some changes. Some people might get red in the face, their heart might beat faster, or they might feel down. Doctors also think that PST deficiency might be linked to other things like autism, headaches called migraines, and even a small chance of getting cancer later in life.

It also means doctors have to be careful about giving certain medicines that have phenolic compounds.