Distribution of hexosamines in bovine cornea.
Excised bovine cornea were sectioned from epithelium to endothelium into 6 to 8 fractions. The glucosamine/galactosamine ratio steadily increases from epithelium to endothelium in all bovine corneas investigated. The glucosamine/galactosamine ratio reflects the keratan sulfate/chondroitin-4-sulfate ratio in the cornea. The significance of this topographic distribution is discussed in terms of the different hydration properties of proteoglycans containing predominantly keartan sulfate or chondroitin-4-sulfate chains.
D000818:Animals; D002417:Cattle; D003315:Cornea / Q000032:analysis*; D004727:Endothelium / Q000032:analysis; D004848:Epithelium / Q000032:analysis; D005688:Galactosamine / Q000032:analysis; D005944:Glucosamine / Q000032:analysis; D006595:Hexosamines / Q000032:analysis*
D006595:Hexosamines; D005688:Galactosamine; D005944:Glucosamine