It is worth noting that other SASP molecules, such as IL‐6, IL‐18, or MMP9, have been shown to be excreted in urines of CKD patients (Wolkow et al, 2008; Musiał et al, 2015; Lipiec et al, 2018; Bullen et al, 2021). This evidence concerns the gene IL6 and chronic kidney disease.