SOST and coronary artery calcification: Furthermore, Lv et al. and Morena et al. stratified CKD patients according to median or tertiles plasma sclerostin level and showed that those with values of sclerostin of more than 59.1 pmol/L or 0.748 ng/ml were more likely to have a decline of renal function along with vascular calcification and coronary artery calcification, respectively [8,13].