Table 1

Levels of cytokines (pg/ml) in serum of elderly subjects (mean ± S.E.M.)

Cytokines
Elderly runners
Sedentary controls

IL-2
90.1 ± 3.4
101.9 ± 5.7
IL-3
3.8 ± 1.9
15.2 ± 4.7*
IL-4
3.4 ± 3.4
Not detectable
IL-6
0.6 ± 0.3
3.7 ± 0.9**
IL-10
0.06 ± 0.04
1.73 ± 0.69
IL-12
11.5 ± 1.5
20.5 ± 2.5**

*p < 0.05

**p < 0.01

Arai et al. Immunity & Ageing 2006 3:9   doi:10.1186/1742-4933-3-9