title: [A biochemical and cytological explanation of cochlear otospongiosis].
abstract: In a study of 250 otosclerotic perilymphatic fluids, it was found statistically that in the presence of developing inner ear deafness, 90% of cases will demonstrate increased trypsin activity. Conversely, elevated antitrypsin levels are found in the absence of developing inner ear deafness.
mesh_terms: D006651:Histocytochemistry; D006801:Humans; D007761:Labyrinthine Fluids / Q000201:enzymology*; D010040:Otosclerosis / Q000201:enzymology* / Q000473:pathology; D010498:Perilymph / Q000166:cytology / Q000201:enzymology*; D014357:Trypsin / Q000378:metabolism*; D000515:alpha 1-Antitrypsin / Q000378:metabolism*
chemical_list: D000515:alpha 1-Antitrypsin; D014357:Trypsin
vernacular_title: Une explication biochimique et cytologique de l'otospongiose cochleaire