HMOX1 and malaria: Neutrophil precursors in the bone marrow (i.e., granulocyte macrophage progenitor cells) of malaria‐infected mice express HO‐1 and have unusual surface phenotypes (F4/80 and Gr‐1 expression).63 It has been shown that HO‐1 reduces neutrophil influx into the inflamed lung71 suggesting a causal relationship between HO‐1 and reduced neutrophil migration but much more work is needed to fully characterize neutrophil maturation and function during malaria infection and to determine the extent to which the altered phenotype is mediated by the heme/HO‐1 pathway.