Fig. 1.

Typical 600 MHz ¹H NMR spectra of urine obtained from an uninfected control mouse (A) and a mouse with a 49-day-old S. mansoni infection (B). The spectra in the aromatic region (δ 6.5-8.5) were magnified 4 times compared with the region δ 2.8-4.3, whereas the region δ 0.7-2.8 was magnified 2 times. Keys to Figs. 1 and 2: 1, butyrate; 2, propionate; 3, d-3-hydroxybutyrate; 4, lactate; 5, 2-oxoisocaproate; 6, 2-oxoisovalerate; 7, alanine; 8, acetate; 9, pyruvate; 10, succinate; 11, citrate; 12, trimethylamine; 13, dimethylamine; 14, 2-oxoglutarate; 15, creatine; 16, creatinine; 17, trimethylamine N-oxide; 18, taurine; 19, phenylacetylglycine; 20, guanodinoacetic acid; 21, hippurate; 22, tryptophan; 23, formate; 24, malonate; 25, β-alanine; 26, isobutyramide; 27, 2-oxoisovaleramide; 28, p-cresol glucuronide.