phytanic acid


phy·tan·ic ac·id

(fī-tan'ik as'id), A branched-chain fatty acid that accumulates in the serum and tissues in Refsum disease and is attributed to the hereditary absence of phytanate α-oxidase; arises from phytol and acts as an inhibitor of the α-oxidation of palmitic (hexadecanoic) acid; it also accumulates in connection with some other disorders, notably peroxisomal types.

phytanic acid

(fī-tăn′ĭk)n. A fatty acid derived from phytol that is present in meat and dairy products from ruminants and accumulates in the serum and tissues of patients with Refsum disease.