Biochemical markers of CKD‐MBD (calcium, phosphorus, 25(OH)D, PTH, and FGF‐23), bone formation (BSAP, OCN, P1NP) and resorption (C‐telopeptide, TRAP5B) markers, and SOST did not differ between low and non‐low turnover. The gene discussed is PAX5; the disease is Marchiafava-Bignami disease.