“…It should be noted that although HMW-APN was included in the current PCA, other important anti-inflammatory cytokines such as IL-10 and IL-1ra were not evaluated in the present study, and these two representative anti-inflammatory cytokines were not used to calculate the abovementioned PCAderived factors. As mentioned in the introduction, a moderate exercise regimen can enhance the HDL-C levels (Kumagai et al, 1994;Motoyama et al, 1995;Riedl et al, 2010;Sasaki et al, 1989;Sunami et al, 1999;Urata et al, 1987), while systemic inflammation is known to suppress the HDL-C levels (Hardardottir et al, 1994). It has also been reported that exercise training/ physical activity are able to modulate the circulating levels of not only frequently measured cytokines such as IL-6 and TNF-a, but also other less frequently investigated cytokines such as IL-4, IL-8, and IL-15 (Balducci et al, 2010;Nishida et al, 2014;Palmefors et al, 2014).…”