At protein level, no significant changes were observed in Sost (CKD+NP: 0.96 ± 0.74 vs. CKD+HP: 1.52 ± 1.21 R.U.; p = 0.327), but Dkk1 levels were significantly higher in the CKD+HP group compared to the CKD+NP group (1.57 ± 1.06 vs. 0.55 ± 0.51 R.U., respectively; p = 0.048). The gene discussed is DKK1; the disease is chronic kidney disease.