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RISS 인기검색어
- 검색키워드
- 저자 : Nimit Taechakraichana (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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Dithawut Khrutmuang,Krasean Panyakhamlerd,Sukanya Chatkittisilpa,Unnop Jaisamrarn,Nimit Taechakraichana 대한골다공증학회 2016 Osteoporosis and Sarcopenia Vol.2 No.2
Objective: To determine the effects of multivitamin vitamin D 300 or 600 units on serum 25 hydroxyvitamin D (25(OH)D) level after 4 weeks of supplementation in postmenopausal women with vitamin D insufficiency. Study design: Randomized double-blind, placebo-controlled trial. Methods: Postmenopausal women who had vitamin D insufficiency were recruited into the study. The participants were randomized to 3 groups of 4-week treatment period with multivitamin (GPO, Governmental Pharmacy Organization) 2 tablets (contained vitamin D2 amount 600 units), multivitamin 1 tablet (contained vitamin D2 amount 300 units) or placebo. At baseline and after 4 weeks of supplementation, serum 25(OH)D were determined with electrochemilumines-cence immunoassay (Cobas, Roche Diagnostics) and level change of 25(OH)D level were compared among the groups. Results: Out of 144 participants, 49.3% had vitamin D deficiency (<20 ng/ml) and 50.7% had vitamin D insufficiency (<30 ng/ml). However, after 4 weeks of the GPO oral multivitamin, serum 25(OH)D levels significantly increased from 19.4 ± 6.3 ng/ml at baseline to 22.2 ± 5.2 ng/ml (P ¼ 0.01) and from 19.5 ± 5.0 ng/ml to 23.3 ± 5.2 ng/ml (P < 0.01) in the groups receiving vitamin D 300 IU and 600 IU/day, respectively. Approximately, 10% of those who took vitamin D had serum 25(OH)D level above the insufficiency level within 4 weeks. There was no significant changes of serum 25(OH)D after 4 weeks in the placebo group. Conclusion: Daily supplementation of the generic multivitamin containing vitamin D2 300 and 600 IU daily for 4 weeks significantly increased mean serum 25(OH)D from baseline up above the deficiency level. Thai clinical trials registration: URL: http://www.clinicaltrials.in.th. Identification number: TCTR20131206001. © 2016 The Korean Society of Osteoporosis. Publishing services by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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Wisit Woranitat,Krasean Panyakhamlerd,Sukanya Chatkittisilpa,Unnop Jaisamrarn,Nimit Taechakraichana 대한골다공증학회 2015 Osteoporosis and Sarcopenia Vol.1 No.2
Objective: This study primarily evaluated serum 25-hydroxy vitamin D levels in postmenopausal women with vitamin D insufficiency who received different dosages and intervals of vitamin D2 supplementation. We secondarily evaluated the percentages of those who achieved vitamin D sufficiency level (Defined as ?30 ng/ml). Study design: Randomized double-blind, placebo-controlled trial. Methods: Postmenopausal women who met the criteria of vitamin D insufficiency (<30 ng/mL) were randomized into 4 groups (N ¼ 25/group). Participants received a 12 week-treatment of different dosages and intervals of vitamin D2 (placebo, vitamin D2 20,000 IU/2 weeks, vitamin D2 20,000 IU/week, and vitamin D2 40,000 IU/week). Serum total 25-hydroxy vitamin D was determined at baseline, after 4 and 12 weeks of supplementation with electrochemiluminescence immunoassay (Elecys, Roche Diagnostics). Changes of 25-hydroxy vitamin D levels were compared among the groups. Results: Forty seven percent of postmenopausal women (100/212) screened for study enrolment were found to have vitamin D insufficiency. At 12 weeks, serum 25-hydroxy vitamin D increased significantly from baseline in all groups ( p < 0.01) (mean serum 25-hydroxy vitamin D level increased from 23.03 ± 4.56 at baseline to 25.60 ± 4.79 ng/ml (placebo), 23.54 ± 5.14 to 27.83 ± 5.27 ng/ml (vitamin D2 20,000 IU/2 weeks), 22.68 ± 5.21 to 30.50 ± 5.14 ng/ml (vitamin D2 20,000 IU/week), and 22.88 ± 4.83 to 37.89 ± 5.47 ng/ml (vitamin D2 40,000 IU/week)). In addition, the 25-hydroxy vitamin D levels were statistically significantly different at 4 and 12 weeks ( p < 0.01) among all 4 groups. The percentages of those achieving vitamin D sufficiency level after 12 weeks of supplementation were 16% (placebo), 27.3% (vitamin D2 20,000 IU/2 weeks), 44% (vitamin D2 20,000 IU/week), and 86.4% (vitamin D2 40,000 IU/week); statistically significantly different among the four groups ( p < 0.01). There was no participant with 25-hydroxy vitamin D after 12 weeks of >50 ng/mL in this study. Conclusion: Vitamin D2 40,000 IU/week was found to be the most effective dosage for postmenopausal women in this study to achieve serum vitamin D sufficiency level.
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