Case Control Study
Copyright ©The Author(s) 2016.
World J Gastroenterol. Apr 7, 2016; 22(13): 3592-3601
Published online Apr 7, 2016. doi: 10.3748/wjg.v22.i13.3592
Table 2 Evaluation of serum pteridine and tryptophan metabolites of lymphatic invasion negative (Group 2/c) and positive (Group 2/d) colorectal cancer patients
GroupGroup 2/c(n = 21)Group 2/d(n = 23)P value
Tryptophan (μmol/L)119.14 ± 1.6820.62 ± 2.060.586
Kynurenine (μmol/L)21.45 ± 0.240.96 ± 0.110.080
Kynurenine/tryptophan95.85 ± 17.4083.08 ± 23.130.662
Serum neopterin (nmol/L)218.43 ± 5.1815.56 ± 2.780.613
Urinary neopterin (μmol neopterin/mol creatinine)185.79 ± 11.7675.68 ± 11.340.541
Urinary biopterin (μmol biopterin/mol creatinine)176.56 ± 16.44105.43 ± 17.200.234
Urinary neopterin (μmol neopterin/mol creatinine) + urinary biopterin (μmol biopterin/mol creatinine)1167.42 ± 21.83177.50 ± 26.820.774
IDO (%)24.04 ± 6.9044.56 ± 6.110.031a