CXCL1 and acute kidney injury: The proinflammatory marker Lcn2, which encodes the kidney damage biomarker N-GAL (Wang et al., 2007), and the chemokine Cxcl1, which plays a key role in neutrophil recruitment (Chung and Lan, 2011), were significantly upregulated in FA kidneys from old compared to AKI young ones (Figure 4).