What are the Different Types of Aldehyde Dehydrogenase?
There are several isoforms of ALDH, each with unique substrate specificities and tissue distributions. The most well-known include ALDH1, ALDH2, and ALDH3. [ALDH2](https://en.wikipedia.org/wiki/Aldehyde_dehydrogenase_2), found predominantly in the liver, is critical for acetaldehyde detoxification. ALDH1 is involved in the oxidation of retinaldehyde to retinoic acid, a crucial step in vitamin A metabolism. ALDH3 is known for its role in metabolizing lipid peroxidation products.