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Increased collagen synthesis and cross-link formation in the skin of rats exposed to vinyl chloride monomer
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1987
Year
Tissue EngineeringPathologyVinyl ChlorideDermatologyCross-link FormationExperimental DermatologyMatrix BiologyCollagen DepositionUnit WeightChloride MonomerConnective Tissue DiseaseSkin DevelopmentCutaneous BiologySclerodermaPharmacologyPhysiologyCollagen SynthesisWound HealingMedicineDermal StructureExtracellular Matrix
Rats treated orally with vinyl chloride (30 mg/kg) daily for 2 years developed a syndrome which included thickening of the skin. Analysis of the skin showed a 26% increase in collagen deposition per unit weight, and a corresponding 30% increase in the levels of glycosylated lysine and hydroxylysine. There was a significant increase in the amounts of the labile borohydride reducible cross-links, such as the intermolecular hydroxylysinonorleucine (+31%) and histidinomerodesmosine (+42%) as well as the intramolecular allysine aldol cross-links (+17%). These results provide evidence that fibrosis of the skin is one of the pathological consequences of exposure to vinyl chloride.