HAVCR1 and Nephropathy: Kidney injury molecule 1 (KIM‐1) and neutrophil gelatinase‐associated lipocalin (NGAL) are potential biomarkers for early prediction of kidney damage in clinical practice.[16] The mRNA expression of KIM‐1 and NGAL in the kidney statistically increased in response to PM2.5 exposure, with a fourfold increase in KIM‐1 levels compared with that in the FA group (Figure 1L).