… Additionally, we did separate mendelian randomization analyses using GRSs for SNPs
for 25(OH)D synthesis (DHCR7 and CYP2R1) and metabolism (GC and CYP24A1). …

… This agrees with results from meta-analyses on randomized controlled trials that found a
decrease in mortality with vitamin D 3 supplementation of a comparable magnitude. …

… analysis, so data were available for 21 participants from the placebo group and 25 from the
vitamin D group with baseline 25-hydroxyvitamin … with baseline 25-hydroxyvitamin D levels >…

… and moderate to large heterogeneity in previous smaller meta-analyses, 36… 38 previous
findings are in agreement with our findings of low plasma 25-hydroxyvitamin D levels being …

… Lastly, some key factors involved in the biology of 25(OH)D, such as 1,25-… analysis. Therefore,
we were unable to examine the role of these molecules in the association between 25(OH)…

… variance–weighted method was used for the primary analyses, and the weighted median
and Mendelian randomization (MR)–Egger methods were used for supplementary analyses. …

… We undertook separate meta-analyses of RCTs examining vitamin D supplementation
and hip fracture, and observational studies of serum vitamin D status (25-hydroxyvitamin D (25(OH…

… non-cases, we did a mendelian randomisation analysis using single nucleotide polymorphisms
(SNPs) within or near four genes related to 25(OH)D synthesis and metabolism: DHCR7 (…

… SVigushin D Serum 25 hydroxyvitamin D levels in early and advanced breast cancer. … in
circulating 25-hydroxyvitamin D. Of the 18 randomized trials, 2 included in this meta-analysis (a …

… Our analysis indicated that oral 25(OH)D 3 was able to correct vitamin D deficiency/…
Randomized controlled trials with a larger sample size and higher dose of 25(OH)D 3 may …