Biotinidase deficiency (BTD) is the most common explanation for biotin deficiency. BTD is actually a exceptional inherited dysfunction where the body is unable to use biotin and causes biotin deficiency. The aldehyde is then even further oxidated by aldehyde dehydrogenase into 5-HIAA.[six] The top products is then excreted in the urine. https://frederickw222nam6.boyblogguide.com/profile