Specific probiotics alleviate allergic rhinitis during the birch pollen season

Table 6 Concentrations of fecal organic acids (mmol/kg)

	March		April/May		June
	Placebo	Probiotic	Placebo	Probiotic	Placebo	Probiotic
Acetic acid	64.6 (6.0)	74.50 (7.2)	59.20 (5.6)	65.50 (5.8)	66.90 (5.1)	58.20 (4.5)
Propionic acid	15.5 (1.3)	17.10 (1.6)	15.20 (1.2)	16.10 (2.1)	16.20 (1.9)	14.60 (1.5)
Isobutyric acid	2.30 (0.3)	2.20 (0.2)	2.00 (0.2)	1.90 (0.1)	1.80 (0.2)	1.90 (0.2)
Butyric acid	11.9 (2.0)	13.40 (2.5)	12.50 (1.2)	11.70 (1.7)	14.00 (1.8)	11.50 (1.7)
2-methylbutyric acid	1.60 (0.2)	1.30 (0.2)	1.60 (0.2)	1.20 (0.1)	1.10 (0.1)1	1.20 (0.2)
Isovaleric acid	1.80 (0.2)	1.70 (0.1)	1.60 (0.2)	1.50 (0.1)	1.50 (0.2)	1.50 (0.2)
Lactic acid	0.14 (0.14)	0.83 (0.56)	0.00 (0.00)	0.14 (0.14)	0.36 (0.25)	0.50 (0.38)
Valeric acid	2.70 (0.3)	2.60 (0.3)	2.70 (0.2)	2.50 (0.2)	2.60 (0.3)	2.50 (0.3)
Capronic acid	0.06 (0.06)	0.31 (0.20)	0.17 (0.12)	0.27 (0.16)	0.03 (0.03)	0.22 (0.09)

¹Significantly different from previous time point; P = 0.05. Data are expressed as mean ± SE.