What's the difference between Aldehyde dehydrogenase and Acetaldehyde dehydrogenase?
Aldehyde dehydrogenases (ALDH) (note the plural) are a family/class of enzymes, while acetaldehyde dehydrogenase refers to the more specific enzyme catalyzing the conversion of acetaldehyde specifically. These terms might be used interchangeably in the literature, which can be confusing! Just make sure to not confuse it with alcohol dehydrogenase, which is a step ahead in the metabolism of alcohol!