Figure 5

NO formation in the media of MPS VI cat articular chondrocytes. Articular chondrocytes were obtained and grown from normal (n = 3) and MPS VI (n = 6) cats ranging in age from 6 months to 5 years, and the nitrite concentrations were determined in the culture media after 24 hours. The height of the columns indicates the mean values obtained from the duplicate analysis of individual animals, and the error bars show the standard error of the mean.