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Effect of oral cholecalciferol 2,000 versus 5,000 IU on serum vitamin D, PTH, bone and muscle strength in patients with vitamin D deficiency.
Osteoporos Int. 2013 Mar; 24(3):1101-5.OI

Abstract

Treatment of vitamin D deficiency for 3 months with oral cholecalciferol 5,000 IU daily was more effective than 2,000 IU daily in achieving optimal serum 25-hydroxyvitamin D (25OHD) concentrations. Optimal 25OHD serum level calculated to be 63.8 nmol/L. All parameters of muscle strength improved following administration of cholecalciferol for 3 months.

INTRODUCTION

The aim of this study was to determine the optimal dose of cholecalciferol required to achieve target serum 25OHD level ≥ 75 nmol/L and its relationship to both bone turnover and muscle strength.

METHODS

Thirty deficient patients (serum 25OHD ≤ 50 nmol/L) were randomly assigned into two groups-i.e. 2,000 and 5,000 IU/day. Data were collected at baseline, at 2 and 3 months post-therapy: (a) clinical demographics, (b) dietary calcium recall, (c) physical tests of muscle function and (d) biochemistry. Statistical analysis used paired student t test and analysis of variance. Regression analysis was used to determine relationship between serum 25OHD and parathyroid hormone (PTH).

RESULTS

Twenty-six (87%) patients completed 3 months of therapy. The percent increase in serum 25OHD (compared to baseline) was 82.7% in 2,000-IU group and 219.5% in 5,000-IU group. All participants (100%) achieved a serum 25OHD concentration >50 nmol/L; only 5 subjects (45.4%) in 2,000-IU group compared to 14 subjects (93.3%) in 5,000-IU group achieved final 25OHD concentration ≥ 75 nmol/L (p < 0.01). In the regression analysis, the reflexion point at which the PTH level increased above the normal range was calculated to be 63.8 nmol/L 25OHD. All parameters of muscle strength showed trends in improvements following the administration of both the 2,000 and 5,000 IU doses. No patient reported untoward side effects and no patient developed hypercalcaemia.

CONCLUSION

Treatment for 3 months with oral cholecalciferol 5,000 IU daily may be more effective than 2,000 IU daily in achieving optimal serum 25OHD concentrations in vitamin D-deficient patients.

Authors+Show Affiliations

Department Endocrinology, St George Hospital, Level 3 Prichard Wing, Gray street, Kogarah, NSW 2211, Australia. terrydiamond@optusnet.com.auNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

22422304

Citation

Diamond, T, et al. "Effect of Oral Cholecalciferol 2,000 Versus 5,000 IU On Serum Vitamin D, PTH, Bone and Muscle Strength in Patients With Vitamin D Deficiency." Osteoporosis International : a Journal Established as Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, vol. 24, no. 3, 2013, pp. 1101-5.
Diamond T, Wong YK, Golombick T. Effect of oral cholecalciferol 2,000 versus 5,000 IU on serum vitamin D, PTH, bone and muscle strength in patients with vitamin D deficiency. Osteoporos Int. 2013;24(3):1101-5.
Diamond, T., Wong, Y. K., & Golombick, T. (2013). Effect of oral cholecalciferol 2,000 versus 5,000 IU on serum vitamin D, PTH, bone and muscle strength in patients with vitamin D deficiency. Osteoporosis International : a Journal Established as Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 24(3), 1101-5. https://doi.org/10.1007/s00198-012-1944-7
Diamond T, Wong YK, Golombick T. Effect of Oral Cholecalciferol 2,000 Versus 5,000 IU On Serum Vitamin D, PTH, Bone and Muscle Strength in Patients With Vitamin D Deficiency. Osteoporos Int. 2013;24(3):1101-5. PubMed PMID: 22422304.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of oral cholecalciferol 2,000 versus 5,000 IU on serum vitamin D, PTH, bone and muscle strength in patients with vitamin D deficiency. AU - Diamond,T, AU - Wong,Y K, AU - Golombick,T, Y1 - 2012/03/16/ PY - 2011/09/18/received PY - 2012/02/06/accepted PY - 2012/3/17/entrez PY - 2012/3/17/pubmed PY - 2013/8/14/medline SP - 1101 EP - 5 JF - Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA JO - Osteoporos Int VL - 24 IS - 3 N2 - UNLABELLED: Treatment of vitamin D deficiency for 3 months with oral cholecalciferol 5,000 IU daily was more effective than 2,000 IU daily in achieving optimal serum 25-hydroxyvitamin D (25OHD) concentrations. Optimal 25OHD serum level calculated to be 63.8 nmol/L. All parameters of muscle strength improved following administration of cholecalciferol for 3 months. INTRODUCTION: The aim of this study was to determine the optimal dose of cholecalciferol required to achieve target serum 25OHD level ≥ 75 nmol/L and its relationship to both bone turnover and muscle strength. METHODS: Thirty deficient patients (serum 25OHD ≤ 50 nmol/L) were randomly assigned into two groups-i.e. 2,000 and 5,000 IU/day. Data were collected at baseline, at 2 and 3 months post-therapy: (a) clinical demographics, (b) dietary calcium recall, (c) physical tests of muscle function and (d) biochemistry. Statistical analysis used paired student t test and analysis of variance. Regression analysis was used to determine relationship between serum 25OHD and parathyroid hormone (PTH). RESULTS: Twenty-six (87%) patients completed 3 months of therapy. The percent increase in serum 25OHD (compared to baseline) was 82.7% in 2,000-IU group and 219.5% in 5,000-IU group. All participants (100%) achieved a serum 25OHD concentration >50 nmol/L; only 5 subjects (45.4%) in 2,000-IU group compared to 14 subjects (93.3%) in 5,000-IU group achieved final 25OHD concentration ≥ 75 nmol/L (p < 0.01). In the regression analysis, the reflexion point at which the PTH level increased above the normal range was calculated to be 63.8 nmol/L 25OHD. All parameters of muscle strength showed trends in improvements following the administration of both the 2,000 and 5,000 IU doses. No patient reported untoward side effects and no patient developed hypercalcaemia. CONCLUSION: Treatment for 3 months with oral cholecalciferol 5,000 IU daily may be more effective than 2,000 IU daily in achieving optimal serum 25OHD concentrations in vitamin D-deficient patients. SN - 1433-2965 UR - https://www.unboundmedicine.com/medline/citation/22422304/Effect_of_oral_cholecalciferol_2000_versus_5000_IU_on_serum_vitamin_D_PTH_bone_and_muscle_strength_in_patients_with_vitamin_D_deficiency_ L2 - https://doi.org/10.1007/s00198-012-1944-7 DB - PRIME DP - Unbound Medicine ER -