Seasonal variation of serum 25-hydroxyvitamin D level in hemodialysis patients in the northernmost island of Japan.
Yufu GochoMarenao TanakaHirohito SugawaraMasato FuruhashiNorihito MoniwaTomohisa YamashitaHideki TakizawaHiroya MukaiKouhei OhnoTakuto MaedaArata OsanamiHirofumi OhnishiHiroaki KomatsuKazuma MoriTetsuji MiuraPublished in: Clinical and experimental nephrology (2021)
Serum 25(OH)D has a seasonal variation, being lower in winter than in summer, independent of CKD-MBD treatment including treatment with VDRAs in Japanese hemodialysis patients. The impact of the seasonal variation on risk of vitamin D deficiency and its effect on prognosis remain to be investigated.