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. Author manuscript; available in PMC: 2017 Dec 5.
Published in final edited form as: J Proteome Res. 2016 Aug 23;15(9):3432–3440. doi: 10.1021/acs.jproteome.6b00234

Figure 4.

Figure 4

Mother–baby urine-matched 1D 1H NMR spectra showing the age variability from birth to 14 months postpartum for (a) mother, (b) birth, (c) 2 weeks, (d) 8 weeks, and (e) 14 months. Key: 1, valine (δ 0.99 −CH3, 1.04 −CH3); 2, lactate (δ 1.33 −CH3, 4.11 −CH); 3, alanine (δ 1.47 −CH3); 4, acetate (δ 1.92 −CH3); 5, uromodulin (δ 2.06 −CH2); 6, succinate (δ 2.42 −CH2); 7, phenylacetylglutamine (PAG) (δ 2.14 −CH2, 2.46 −CH2, 3.77 −CH2, 7.35 (−CH)3; 8, citrate (δ 2.55 −CH2, 2.66 −CH); 9, creatine (δ 3.02 −CH3 (overlapped with creatinine), 3.92 −CH2); 10, proline betaine (δ 3.11 −CH3, 3.30 −CH3); 11, trimethylamine-N-oxide (δ 3.25 −CH3); 12, glycine (δ 3.55 −CH2); 13, hippurate (δ 3.95 −CH); 14, N-methylnicotinamide (δ 4.48 −CH); 15, fumarate (δ 6.53 −CH3); 16, urocanic acid (δ 6.65); 17, formate (δ 8.45 −CH); 18, propylene glycol (δ 1.14 −CH3); 19, tert-butanol (δ 1.25 −CH3); 20, acetone (δ 2.24 −CH3); 21, methylguanidine (tentative assignment; δ 2.23 −CH3); 22, trimethylamine (δ 2.28 −CH3); 23, creatinine (δ 3.05 −CH3, 4.06 −CH2); 24, betaine (δ 3.25 (−CH3)3, 3.89 −CH2); 25, 4-cresol sulfate (δ 2.22 −CH3, 7.11 −CH, 7.18 −CH); 26, 2-oxoglutarate (δ 2.42 −CH); 27, dimethylamine (δ 2.72 −CH3); 28, dimethylglycine (δ 2.93 −CH3); and 29, 3-methyl-histidine (δ 6.93 −CH, 7.69 −CH).