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. 2021 Aug 20;22(16):8997. doi: 10.3390/ijms22168997

Figure 4.

Figure 4

Total distribution of lipid concentration in biopsies. pSS: primary Sjögren’s syndrome; nonSS: non-Sjögren’s syndrome; FFA: free fatty acids; Cer: ceramide; SPM: sphingomyelin; PC: diacylglycerophosphocholine; DAG: diacylglycerol; LPC: lysophosphatidylcholine; TAG: triacylglycerol; PE: diacylglycerophosphoethanolamine; PI: diacylglycerophosphoinositol; HexCer: hexosylceramides; PG: phosphatidylglycerol. Significant differences in individual lipids between glands from pSS patients compared to non-SS sicca subjects were observed in PI, SPM (both p < 0.05), and TAG (p < 0.01).