Figure 2. Substances elaborated from the myocardium after prolonged ischemia exacerbate myocardial IS by acting on splenic leukocytes.
IHH from 40 minute ischemic myocardium (40-IHH) significantly exacerbated myocardial IS in 20′/60′ mice. However, 10-IHH had no effect on IS. The IS exacerbating effect of 40-IHH disappeared in splenectomized mice, but IS could be restored in splenectomized mice by SPAT. N = ≥5 mice/group. IHH: ischemic heart homogenate.