where is alcohol dehydrogenase found in the body
Alcohol dehydrogenase In humans, ADH exists in multiple forms as a dimer and is encoded by at least seven different genes. There are five classes (I-V) of alcohol dehydrogenase, but the hepatic form that is used primarily in humans is class 1. Class 1 consists of α, β, and γ subunits that are encoded by the genes ADH1A, ADH1B, and ADH1C.[18] The enzyme is present at high levels in the liver and the lining of the stomach.[19] It catalyzes the oxidation of ethanol to acetaldehyde (ethanal):
Small intestine Food from the stomach is allowed into the duodenum through the pylorus by a muscle called the pyloric sphincter.
Small intestine Absorption of the majority of nutrients takes place in the jejunum, with the following notable exceptions:
Stomach In classical anatomy, the human stomach is divided into four sections, beginning at the gastric cardia,[6] each of which has different cells and functions.