Table 2.

Concentrations of salivary IgA, TP, NO and incidence of URTI.

	PLA			GLU
IgA (μg/ml)
PRE	153.31	±	102.12	158.31	±	77.70
POST	183.93	±	102.27	242.37	±	172.17*
TP (mg/ml)
PRE	2.10	±	0.97	2.04	±	0.74
POST	2.17	±	0.94	2.02	±	0.97
IgA/TP (μg/mg)
PRE	84.97	±	42.80	77.77	±	35.28
POST	98.01	±	43.38	115.34	±	66.99**
NO (μmol/l)
PRE	154.6	±	167.1	156.5	±	153.5
POST	299.7	±	522.5	352.2	±	426.6**
Incidence of URTI (ratio)		12			5†

TP, total protein; GLU, L-glutamine group; PLA, placebo group.

Values are mean ± SD.

*p < 0.05, **p < 0.01, significantly different from PRE in each group.

^†p < 0.05, significantly lower than PLA.