Fig. 1From: Integrative analysis of purine metabolites and gut microbiota in patients with neuromyelitis optica spectrum disorders after mycophenolate mofetil treatmentPurine salvage pathway metabolites are maintained at high levels in LEG patients. (A) Schematic of the de novo and salvage pathways of purine synthesis. (B) Serum collection point for the experiments. Quantification of the levels of (C) Inosine (D) Hypoxanthine (E) Xanthine (F) Guanine and (G) Uric acid. *p < 0.05Back to article page