RT Journal Article T1 Oral Calcidiol Is More Effective Than Cholecalciferol Supplementation to Reach Adequate 25(OH)D Levels in Patients with Autoimmune Diseases Chronically Treated with Low Doses of Glucocorticoids: A "Real-Life" Study. A1 Ortego-Jurado, Miguel A1 Callejas-Rubio, José-Luis A1 Ríos-Fernández, Raquel A1 González-Moreno, Juan A1 González Ramírez, Amanda Rocío A1 González-Gay, Miguel A A1 Ortego-Centeno, Norberto K1 Enfermedades autoinmunes K1 Índice de masa corporal K1 Calcifediol K1 Calcio en la dieta K1 Colecalciferol K1 Difosfonatos K1 Femenino K1 Fracturas óseas K1 Glucocorticoides K1 Humanos K1 Incidencia K1 Posmenopausia K1 Vitamina D K1 Vitaminas AB Glucocorticoids (GCs) are the cornerstone of the therapy in many autoimmune and inflammatory diseases. However, it is well known that their use is a double edged sword, as their beneficial effects are associated almost universally with unwanted effects, as, for example glucocorticoid-induced osteoporosis (GIO). Over the last years, several clinical practice guidelines emphasize the need of preventing bone mass loss and reduce the incidence of fractures associated with GC use. Calcium and vitamin D supplementation, as adjunctive therapy, are included in all the practice guidelines. However, no standard vitamin D dose has been established. Several studies with postmenopausal women show that maintaining the levels above 30-33 ng/mL help improve the response to bisphosphonates. It is unknown if the response is the same in GIO, but in the clinical practice the levels are maintained at around the same values. In this study we demonstrate that patients with autoimmune diseases, undergoing glucocorticoid therapy, often present suboptimal 25(OH)D levels. Patients with higher body mass index and those receiving higher doses of glucocorticoids are at increased risk of having lower levels of 25(OH)D. In these patients, calcidiol supplementations are more effective than cholecalciferol to reach adequate 25(OH)D levels. PB Hindawi Publishing Corporation SN 2042-0064 YR 2015 FD 2015 LK http://hdl.handle.net/10668/2565 UL http://hdl.handle.net/10668/2565 LA en NO Ortego-Jurado M, Callejas-Rubio JL, Ríos-Fernández R, González-Moreno J, González Ramírez AR, González-Gay MA, et al. Oral Calcidiol Is More Effective Than Cholecalciferol Supplementation to Reach Adequate 25(OH)D Levels in Patients with Autoimmune Diseases Chronically Treated with Low Doses of Glucocorticoids: A "Real-Life" Study. J Osteoporos; 2015:729451 NO Journal Article; DS RISalud RD Apr 11, 2025