a white or yellowish powder that forms a viscous opalescent fluid with water, prepared from mucosa of hog's stomach by pepsin-hydrochloric acid digestion and precipitation of the supernatant fluid with 60% alcohol; used in peptic ulcer for its protective and lubricating action.
Etymology: Gk, gaster, stomach; L, mucus
a viscous secretion of glycoproteins produced from the mucous membrane lining of swine stomachs and formerly used in the treatment of peptic ulcers.
MUC5ACA gene on chromosome 11p15.5 that encodes a gel-forming glycoprotein of gastric and respiratory tract epithelia, which protects the mucosa from infection and chemical damage by binding to inhaled microorganisms and particles, which are subsequently removed by the mucocilary system.
MUC5A stains are positive in foveolar dysplasia.