[Visualization of oxitalan fibers in normal human skin by the alkaline tetrazolium test].
The "elastic system" of the connective tissue includes the oxytalan, the elaunin and the elastic fibers. The oxytalan fibers are formed by the microfibrillar component of the elastic fibers (elastic microfibrils). In the human skin the oxytalan fibers are found in the papillary dermis perpendicularly oriented to the dermo-epidermal junction. It was previously demonstrated by biochemical analysis that sulfur amino acids are present in the elastic microfibrils. Based on these data we could visualize the oxytalan fibers in the human dermis using the nitroblue tetrazolium (NBT) technique.
D000596:Amino Acids / Q000032:analysis; D000603:Amino Acids, Sulfur / Q000032:analysis; D003238:Connective Tissue / Q000648:ultrastructure*; D004547:Elastic Tissue / Q000648:ultrastructure*; D006801:Humans; D009580:Nitroblue Tetrazolium; D012867:Skin / Q000648:ultrastructure*; D013778:Tetrazolium Salts
D000596:Amino Acids; D000603:Amino Acids, Sulfur; D013778:Tetrazolium Salts; D009580:Nitroblue Tetrazolium
Visualização das fibras oxitalãnicas na derme humana normal pela técnica dos tetrazólios alcalinos.