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. 2019 Jul 31;14(7):e0220333. doi: 10.1371/journal.pone.0220333

Fig 1. Altered skin GAG content and sulfation in Ext1+/-Ext2+/- mice.

Fig 1

Results from HPLC-MS/MS measurements of skin heparan sulfate (A) and dermatan sulfate (B) content and sulfation in Ext1+/-Ext2+/- and control mice. (A) No difference in total skin heparan sulfate content was seen between Ext1+/-Ext2+/- mice and controls on a NSD, but tri-sulfated heparan sulfate disaccharides were more prevalent in the skin of Ext1+/-Ext2+/- mice. After a HSD, total skin heparan sulfate disaccharide content increased in Ext1+/-Ext2+/- mice (p = 0.004) while no effect was seen in controls (p = 1.00; n = 5–6 for each condition). (B) Similar results were found for dermatan sulfate disaccharides (n = 5–6 for each condition): total skin dermatan sulfate disaccharide content was similar in Ext1+/-Ext2+/- mice and controls (p = 0.25) and increased after HSD in Ext1+/-Ext2+/- mice (p = 0.002), but not in controls (p = 0.84). *p<0.05; **compared to control mice on a similar diet; †compared to Ext1+/-Ext2+/- on a NSD. Con, controls; DS, dermatan sulfate; Ext, Ext1+/-Ext2+/-; HS, heparan sulfate; HSD, high sodium diet; NSD, normal sodium diet.