Effect of vitamin D supplementation on vitamin D status and bone turnover markers in young adults

Barnes, Maria S.; Robson, Paula J.; Bonham, Maxine P.; Strain, JJ; Wallace, Jonathan

doi:10.1038/sj.ejcn.1602374

Cited by 49 publications

(44 citation statements)

References 56 publications

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“…Secretion of PTH is regulated primarily by a drop in serum calcium [31,32] and does not appear to be affected by vitamin D deficiency until serum 25(OH)D concentrations drop below 30-40 nmol/L [16,32,33]. This may explain the lack of PTH response to supplementation in this study.…”

Section: Discussionmentioning

confidence: 66%

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Vitamin D supplementation suppresses age-induced bone turnover in older women who are vitamin D deficient

Hurst

Stonehouse

Kruger

et al. 2010

The Journal of Steroid Biochemistry and Molecular Biology

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Section: Discussionmentioning

confidence: 66%

“…Hitz et al [15] observed an increase in bone mineral density (BMD), concurrent with decreased PTH and bone turnover in older people under 70 years and reduced loss in those over 70 years. However there was no change in healthy students aged 18-27 years [16].…”

Section: Introductionmentioning

confidence: 58%

Vitamin D supplementation suppresses age-induced bone turnover in older women who are vitamin D deficient

Hurst

Stonehouse

Kruger

et al. 2010

The Journal of Steroid Biochemistry and Molecular Biology

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“…At baseline, 25(OH)D concentration (mean ± SD) did not statistically differ between the calcium plus vitamin D group (48±16 nmol/L) and the calcium group (56±19 nmol/L). Analysis of covariance (ANCOVA) showed that post-supplementation 25(OH)D concentrations significantly differed between the treatment groups, namely 87±25 nmol/L in the calcium plus vitamin D group and 48±17 nmol/L in the calcium group (ANCOVA P<0.0001) (Barnes et al 2006). …”

Section: Adultsmentioning

confidence: 99%

Collection and analysis of published scientific information as preparatory work for the setting of Dietary Reference Values for Vitamin D

Brouwer‐Brolsma

Berendsen

Vaes

et al. 2016

EFSA Supporting Publications

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DISCLAIMERThe present document has been produced and adopted by the bodies identified above as author(s). This task has been carried out exclusively by the author(s) in the context of a contract between the European Food Safety Authority and the author(s), awarded following a tender procedure. The present document is published complying with the transparency principle to which the Authority is subject. It may not be considered as an output adopted by the Authority. The European Food Safety Authority reserves its rights, view and position as regards the issues addressed and the conclusions reached in the present document, without prejudice to the rights of the authors. The present document has been produced and adopted by the bodies identified above as author(s). This task has been carried out exclusively by the author(s) in the context of a contract between the European Food Safety Authority and the author(s), awarded following a tender procedure. The present document is published complying with the transparency principle to which the Authority is subject. It may not be considered as an output adopted by the Authority. Studies conducted in populations with diseases assumed to affect vitamin D metabolism were excluded. Selection of articles followed a stepwise process, starting with title and abstract screening, followed by full text screening that was registered using in/out forms. At the start of both phases, 10% of the screening was performed in duplicate. To align screening and sorting, inconsistencies in inclusion and exclusion were discussed in a review team until consensus was reached. Studies were sorted by age group: 1) infants, 2) children and adolescents, and 3) adults. In addition, hand searches using relevant literature reviews were conducted to identify studies that were not retrieved by the systematic search of the three databases. Extraction of data of articles identified as being relevant was shared by two researchers. ResultsSearching Medline, Embase and Cochrane resulted in 2,257, 6,644 and 641 hits respectively, resulting in 7,807 unique hits after removal of duplicates. On the basis of title and abstract screening, 6,484 items could be excluded. Thus, 1,323 articles needed to be assessed by full text screening. Twenty-two articles were added to these 1,323 articles, following hand searches of 10 reviews. After critical evaluation, 17 articles reported on data in populations that were assumed to have an altered vitamin D metabolism; 72 articles were excluded either because dietary vitamin D intake data were not reported (n=62) or because dietary intake data were obtained by a non-validated method (n=10); 469 articles were excluded because they did not fulfil the criteria of minimal endogenous vitamin D synthesis; 280 articles did not measure or report serum/plasma 25(OH)D; 65 articles did not examine vitamin D 2 or vitamin D 3 as the exposure (but, for instance, a vitamin D metabolite that was not relevant to this review or a medicine, n=59), or did not report an exact dose (n=6); 139 articles...

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“…Dawodu and colleagues also implicate cultural dress codes, which encourage extensive body covering. Moreover, the high levels of obesity of residents in the UAE countries, the relatively darker skin pigmentation, and the presence of dust in the atmosphere may also contribute by reducing the skin's ability to synthesize VTD (Barnes et al, 2006).…”

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confidence: 99%

Exploring Sun Avoidant Attitudes and Behaviors in the United Arab Emirates

et al. 2010

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The aim in this study was to develop a Sun Avoidance Inventory (SAI) and then test its factor structure and reliability. The SAI is a culturally grounded self-report measure of the attitudes and behaviors indicative of minimizing direct exposure to the sun. In our study 193 Emirati females completed the SAI. The results of analysis of their responses support the validity of the instrument with 6 domains of avoidance being identified: recreational, occupational, head covering, body covering, and skin tone preference (light or tanned). The most strongly endorsed attitude was that even brief exposure to sun is bad for health and the most strongly endorsed behavior was wearing a niqab (veil) outdoors. In previous studies carried out in the United Arab Emirates elevated levels of vitamin D (VTD) deficiency have been found, especially among females. High scores on the SAI may predict VTD deficiency and in the future researchers could explore the validity of the SAI as a predictor of VTD deficiency and also investigate the potential use of the SAI in multiphase screening procedures for VTD deficiency.

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Effect of vitamin D supplementation on vitamin D status and bone turnover markers in young adults

Cited by 49 publications

References 56 publications

Vitamin D supplementation suppresses age-induced bone turnover in older women who are vitamin D deficient

Vitamin D supplementation suppresses age-induced bone turnover in older women who are vitamin D deficient

Collection and analysis of published scientific information as preparatory work for the setting of Dietary Reference Values for Vitamin D

Exploring Sun Avoidant Attitudes and Behaviors in the United Arab Emirates

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