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Fig. 2 | BMC Nephrology

Fig. 2

From: Tryptophan metabolism, its relation to inflammation and stress markers and association with psychological and cognitive functioning: Tasmanian Chronic Kidney Disease pilot study

Fig. 2

Scatter plots depicting relationships between serum metabolites. a tryptophan breakdown index (KYN/TRP) vs. eGFR; b kynurenine vs. neopterin; c neopterin vs. indoxyl sulfate. Marker colours indicate kidney function, and not used for separate calculations: red, CKD stage 5 (empty, HD; full, non-HD); blue, CKD stage ≤ 4. Pearson correlation tests (n = 27) were conducted on log-transformed data as required, then back-transformed for presentation in this figure. Abbreviations: CKD, chronic kidney disease; eGFR, estimated glomerular filtration rate; HD, haemodialysis; KYN, kynurenine; TRP, tryptophan

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BMC Nephrology

ISSN: 1471-2369

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