Babies with MSUD can’t break down amino acids called leucine, isoleucine, and valine. Very high levels of these amino acids are dangerous. There are four main types of maple syrup urine disease ...

Sarcosine levels can be measured noninvasively using a urine test; as such ... glycerol-3-phosphate, leucine and proline—was produced in great quantities by aggressive prostate cancers with ...