Prospective Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Mar 28, 2015; 21(12): 3636-3643
Published online Mar 28, 2015. doi: 10.3748/wjg.v21.i12.3636
Table 1 Comparison of neopterin, tryptophan, kynurenine, nitrite, biopterin levels (mean ± SE) in controls without malignancy and in gastric cancer patients
Control group(n = 108)Colorectal cancer group(n = 97)P value
Serum neopterin (nmol/L)7.68 ± 0.5621.18 ± 2.450.021a
Tryptophan (nmol/L)20.6 ± 0.6115.38 ± 0.640.000a
Kynurenine (nmol/L)0.89 ± 0.091.24 ± 0.090.000a
Kynurenine/tryptophan (μmol/mmol)49.10 ± 5.5299.93 ± 8.700.000a
Nitrite (μmol/L)24.60 ± 1.6923.05 ± 1.740.107
Urinary biopterin/creatinine (μmol/mol)121.65 ± 7.79122.70 ± 7.690.926
Table 2 Comparison of neopterin, tryptophan, kynurenine, nitrite, biopterin levels (mean ± SE) in Helicobacter pylori seronegative controls and Helicobacter pylori seronegative colorectal cancer patients
H. pylori seronegativecontrol group(n = 37)H. pylori seronegativecolorectal cancer group (n = 19)P value
Serum neopterin (nmol/L)8.10 ± 1.1120.89 ± 6.270.010a
Tryptophan (nmol/L)20.37 ± 0.8915.71 ± 1.160.003a
Kynurenine (nmol/L)0.89 ± 0.121.22 ± 0.180.007a
Kynurenine/tryptophan (mmol/mmol)52.85 ± 11.8578.91 ± 8.680.000a
Nitrite (mmol/L)21.86 ± 1.8125.51 ± 4.340.938
Urinary biopterin/creatinine (mmol/mol)116.20 ± 12.87119.1 ± 11.60.573
Table 3 Comparison of neopterin, tryptophan, kynurenine, nitrite, biopterin levels (mean ± SE) in Helicobacter pylori seropositive controls and Helicobacter pylori seropositive colorectal cancer patients
H. pylori seropositivecontrol group(n = 71)H. pylori seropositivecolorectal cancer group (n = 78)P value
Serum neopterin (nmol/L)7.44 ± 0.6121.8 ± 3.050.0001a
Tryptophan (nmol/L)20.71 ± 0.8114.97 ± 0.790.0001a
Kynurenine (nmol/L)0.89 ± 0.131.28 ± 0.110.0001a
Kynurenine/tryptophan (μmol/mmol)47.31 ± 5.93109.65 ± 11.500.0001a
Nitrite (μmol/L)26.04 ± 2.3920.41 ± 1.480.017a
Urinary biopterin/creatinine (μmol/mol)124.65 ± 9.84120.69 ± 9.980.607