Using Activities of Daily Living Assessments to Measure the Effectiveness of Vitamin D Supplements in Elderly Long-Stay Patients

1987 ◽  
Vol 50 (2) ◽  
pp. 60-62 ◽  
Author(s):  
D Corless ◽  
M Ellis ◽  
E Dawson ◽  
F Fraser ◽  
S Evans ◽  
...  
Keyword(s):  
Vitamin D ◽  
Elderly Patients ◽  
Activities Of Daily Living ◽  
Daily Living ◽  
Controlled Trial ◽  
Double Blind ◽  
Hydroxyvitamin D ◽  
Low Concentrations ◽  
25 Hydroxyvitamin D ◽  
Vitamin D Supplements

Selected activities of daily living were used to measure improvement in independence of long-stay elderly patients known to have low concentrations of plasma 25-hydroxyvitamin D. This was a double-blind random controlled trial lasting between 8 and 40 weeks. No significant changes were found in either group.

scholarly journals Vitamin D-Fortified Bread Is as Effective as Supplement in Improving Vitamin D Status: A Randomized Clinical Trial

2016 ◽  
Vol 101 (6) ◽  
pp. 2511-2519 ◽  
Author(s):  
Bahareh Nikooyeh ◽  
Tirang R. Neyestani ◽  
Maliheh Zahedirad ◽  
Mehrdad Mohammadi ◽  
S. Hedayat Hosseini ◽  
...  
Keyword(s):  
Vitamin D ◽  
Controlled Trial ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Cholesterol Concentration ◽  
Daily Consumption ◽  
Double Blind ◽  
Hydroxyvitamin D ◽  
Group Reduction ◽  
25 Hydroxyvitamin D

Abstract Context: Bread can potentially be a suitable vehicle for fortification with vitamin D. Objective: This study was undertaken to evaluate the following: 1) the bioavailability of vitamin D from the fortified Iranian bread and 2) the possible effects of daily consumption of the fortified bread on certain health aspects. Design, Setting, and Participants: This was a randomized, double-blind, placebo-controlled trial conducted over 8 weeks in 90 healthy subjects aged 20–60 years. Intervention: Subjects were randomly allocated to one of three groups: 1) fortified bread (FP; 50 g bread fortified with 25 μg vitamin D3 plus placebo daily; n = 30); 2) supplement (SP; 50 g plain bread plus 25 μg vitamin D supplement daily; n = 30); and 3) control (CP; 50 g plain bread plus placebo daily; n = 30). Outcome Measures: Initial and final anthropometric and biochemical assessments were performed. Results: The within-group changes of serum 25-hydroxyvitamin D concentrations were 39.0 ± 22.6 (P < .001), 28.9 ± 31.2 (P < .001), and −9.2 ± 12.3 nmol/L in the FP, SP, and CP groups, respectively. Only in FP and SP groups, serum intact PTH concentrations decreased approximately 13.5% and 14.5%, respectively. Visceral fat also showed a significant decrement in FP (−1.05% ± 1.4%; P ≤ .001) and SP (−0.96% ± 1.7%; P = .006). Serum low-density lipoprotein cholesterol concentration showed a within-group reduction in FP (−10.4 ± 11.2 mg/dL; P < .001) and an insignificant decrement in SP (−6.6 ± 20.2 mg/dL; P = .083). Serum high-density lipoprotein increased in both vitamin D-supplemented groups (FP: 9.7 ± 7.6 vs SP: 5.7 ± 6.7 mg/dL; P < .001). Conclusion: Vitamin D-fortified bread could be potentially effective in raising circulating 25-hydroxyvitamin D levels of the population to nearly adequate levels.

Bioavailability and Safety of Vitamin D3 from Pizza Baked with Fortified Mozzarella Cheese: A Randomized Controlled Trial

2015 ◽  
Vol 76 (3) ◽  
pp. 109-116 ◽  
Author(s):  
Banaz Al-Khalidi ◽  
Winnie Chiu ◽  
Dérick Rousseau ◽  
Reinhold Vieth
Keyword(s):  
Vitamin D ◽  
Dose Group ◽  
Controlled Trial ◽  
High Dose Group ◽  
Secondary Outcome ◽  
High Dose ◽  
Mozzarella Cheese ◽  
Double Blind ◽  
Hydroxyvitamin D ◽  
25 Hydroxyvitamin D

Purpose: To assess the bioavailability and safety of vitamin D3 from fortified mozzarella cheese baked on pizza. Methods: In a randomized, double-blind trial, 96 apparently healthy, ethnically diverse adults were randomized to consume 200 IU or 28 000 IU vitamin D3 fortified mozzarella cheese with pizza once weekly for a total of 8 weeks. Blood and urine samples were collected at baseline (week 1) and final (week 10) visits for serum 25-hydroxyvitamin D and other biochemical measures. The primary outcome compared serum 25-hydroxyvitamin D between groups at 10 weeks. The secondary outcome evaluated the safety of vitamin D dosing protocol as measured by serum and urine calcium, phosphate, creatinine, and serum parathyroid hormone (PTH). Results: Serum 25-hydroxyvitamin D increased by 5.1 ± 11 nmol/L in the low-dose group (n = 47; P = 0.003), and by 73 ± 22 nmol/L in the high-dose group (n = 49; P < 0.0001). None of the subjects in either group developed any adverse events during the supplementation protocol. Serum PTH significantly decreased in the high-dose group only (P < 0.05). Conclusions: Vitamin D3 is safe and bioavailable from fortified mozzarella cheese baked on pizza.

scholarly journals Association of Serum 25-Hydroxyvitamin D Deficiency with Risk of Incidence of Disability in Basic Activities of Daily Living in Adults >50 Years of Age

2020 ◽  
Vol 150 (11) ◽  
pp. 2977-2984
Author(s):  
Mariane M Luiz ◽  
Roberta Máximo ◽  
Dayane C Oliveira ◽  
Paula C Ramírez ◽  
Aline F de Souza ◽  
...  
Keyword(s):  
Vitamin D ◽  
Risk Factor ◽  
Activities Of Daily Living ◽  
Vitamin D Deficiency ◽  
Daily Living ◽  
Clinical Characteristics ◽  
Hydroxyvitamin D ◽  
Increased Risk ◽  
25 Hydroxyvitamin D

ABSTRACT Background Vitamin D deficiency compromises muscle function and is related to the etiology of several clinical conditions that can contribute to the development of disability. However, there are few epidemiological studies investigating the association between vitamin D deficiency and the incidence of disability. Objectives We aimed to assess whether vitamin D deficiency is associated with the incidence of disability in basic activities of daily living (BADL) and to verify whether there are sex differences in this association. Methods A 4-y follow-up study was conducted involving individuals aged 50 y or older who participated in ELSA (English Longitudinal Study of Ageing). The sample consisted of 4814 participants free of disability at baseline according to the modified Katz Index. Vitamin D was assessed by serum 25-hydroxyvitamin D [25(OH)D] concentrations and the participants were classified as sufficient (&gt;50 nmol/L), insufficient (&gt;30 to ≤50 nmol/L), or deficient (≤30 nmol/L). Sociodemographic, behavioral, and clinical characteristics were also investigated. BADL were re-evaluated after 2 and 4 y of follow-up. The report of any difficulty to perform ≥1 BADL was considered as an incident case of disability. Poisson models stratified by sex and controlled for sociodemographic, behavioral, and clinical characteristics were carried out. Results After 4-y follow-up, deficient serum 25(OH)D was a risk factor for the incidence of BADL disability in both women (IRR: 1.53; 95% CI: 1.16, 2.03) and men (IRR: 1.44; 95% CI: 1.02, 2.02). However, insufficient serum 25(OH)D was not a risk factor for the incidence of BADL disability in either men or women. Conclusions Independently of sex, deficient serum 25(OH)D concentrations were associated with increased risk of incidence of BADL disability in adults &gt;50 y old and should be an additional target of clinical strategies to prevent disability in these populations.

scholarly journals 25-Hydroxyvitamin D Threshold for the Effects of Vitamin D Supplements on Bone Density: Secondary Analysis of a Randomized Controlled Trial

2018 ◽  
Vol 33 (8) ◽  
pp. 1464-1469 ◽  
Author(s):  
Helen M Macdonald ◽  
Ian R Reid ◽  
Gregory D Gamble ◽  
William D Fraser ◽  
Jonathan C Tang ◽  
...  
Keyword(s):  
Vitamin D ◽  
Randomized Controlled Trial ◽  
Bone Density ◽  
Controlled Trial ◽  
Secondary Analysis ◽  
Hydroxyvitamin D ◽  
Randomized Controlled ◽  
25 Hydroxyvitamin D ◽  
Vitamin D Supplements

scholarly journals Effect of Vitamin D3 Supplementation vs Placebo on Hospital Length of Stay in Patients with Severe COVID-19: A Multicenter, Double-blind, Randomized Controlled Trial

2020 ◽  
Author(s):  
Igor H. Murai ◽  
Alan L. Fernandes ◽  
Lucas P. Sales ◽  
Ana J. Pinto ◽  
Karla F. Goessler ◽  
...  
Keyword(s):  
Vitamin D ◽  
Length Of Stay ◽  
Controlled Trial ◽  
Hospital Length ◽  
Hospitalized Patients ◽  
Hospital Length Of Stay ◽  
Double Blind ◽  
Hydroxyvitamin D ◽  
Randomized Controlled ◽  
25 Hydroxyvitamin D

ImportancePatients with COVID-19 may exhibit 25-hydroxyvitamin D deficiency, but the beneficial effects of vitamin D3 supplementation in this disease remain to be proven by randomized controlled trials.ObjectiveTo investigate the efficacy and safety of vitamin D3 supplementation in patients with severe COVID-19.Design, Setting, and ParticipantsThis is a multicenter, double-blind, randomized, placebo-controlled trial conducted in two centers (a quaternary hospital and a field hospital) in Sao Paulo, Brazil. The trial included 240 hospitalized patients with severe COVID-19. The study was conducted from June 2, 2020 to October 7, 2020.InterventionsPatients were randomly allocated (1:1 ratio) to receive either a single oral dose of 200,000 IU of vitamin D3 or placebo.Main Outcomes and MeasuresThe primary outcome was hospital length of stay, defined as hospital discharge from the date of randomization or death. Secondary outcomes were mortality, admission to ICU, mechanical ventilation requirement, and serum levels of 25-hydroxyvitamin D, creatinine, calcium, C-reactive protein, and D-dimer.ResultsOf 240 randomized patients (mean age, 56 years; 56% men), 232 (96.7%) were included in the primary analysis. Log-rank test showed that hospital length of stay was comparable between the vitamin D3 supplementation and placebo groups (7.0 days [95% CI, 6.1 to 7.9] and 7.0 days [95% CI, 6.2 to 7.8 days]; hazard ratio, 1.12 [95% CI, 0.9 to 1.5]; P = .379; respectively). The rate of mortality (7.0% vs 5.1%; P = .590), admission to ICU (15.8% vs 21.2%; P = .314), and mechanical ventilation requirement (7.0% vs 14.4%; P = .090) did not significantly differ between groups. Vitamin D3 supplementation significantly increased serum 25-hydroxyvitamin D levels compared to placebo (difference, 24.0 ng/mL [95% CI, 21.0% to 26.9%]; P = .001). No adverse events were observed.Conclusions and RelevanceAmong hospitalized patients with severe COVID-19, vitamin D3 supplementation was safe and increased 25-hydroxyvitamin D levels, but did not reduce hospital length of stay or any other relevant outcomes vs placebo. This trial does not support the use of vitamin D3 supplementation as an adjuvant treatment of patients with COVID-19.Key pointsQuestionCan vitamin D3 supplementation reduce hospital length of stay in hospitalized patients with severe COVID-19?FindingsIn this double-blind, randomized, placebo-controlled trial involving 240 hospitalized patients with severe COVID-19, a single dose of 200,000 IU of vitamin D3 supplementation was safe and effective in increasing 25-hydroxyvitamin D levels, but did not significantly reduce hospital length of stay (hazard ratio, 1.12) or any other clinically-relevant outcomes compared with placebo.MeaningVitamin D3 supplementation does not confer therapeutic benefits among hospitalized patients with severe COVID-19.

scholarly journals Estimation of the maternal vitamin D intake that maintains circulating 25-hydroxyvitamin D in late gestation at a concentration sufficient to keep umbilical cord sera ≥25–30 nmol/L: a dose-response, double-blind, randomized placebo-controlled trial in pregnant women at northern latitude

2018 ◽  
Vol 108 (1) ◽  
pp. 77-91 ◽  
Author(s):  
Karen M O'Callaghan ◽  
Áine Hennessy ◽  
George L J Hull ◽  
Karina Healy ◽  
Christian Ritz ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D3 ◽  
Dose Response ◽  
Controlled Trial ◽  
Late Gestation ◽  
Total Vitamin ◽  
Double Blind ◽  
Hydroxyvitamin D ◽  
Vitamin D Intake ◽  
25 Hydroxyvitamin D

ABSTRACT Background In the absence of dose-response data, Dietary Reference Values for vitamin D in nonpregnant adults are extended to pregnancy. Objective The aim was to estimate vitamin D intake needed to maintain maternal 25-hydroxyvitamin D [25(OH)D] in late gestation at a concentration sufficient to prevent newborn 25(OH)D <25–30 nmol/L, a threshold indicative of increased risk of nutritional rickets. Design We conducted a 3-arm, dose-response, double-blind, randomized placebo-controlled trial in Cork, Ireland (51.9oN). A total of 144 white-skinned pregnant women were assigned to receive 0, 10 (400 IU), or 20 (800 IU) µg vitamin D3/d from ≤18 wk of gestation. Vitamin D metabolites at 14, 24, and 36 wk of gestation and in cord sera, including 25(OH)D3, 3-epi-25(OH)D3, 24,25(OH)2D3, and 25(OH)D2 were quantified by liquid chromatography–tandem mass spectrometry. A curvilinear regression model predicted the total vitamin D intake (from diet and antenatal supplements plus treatment dose) that maintained maternal 25(OH)D in late gestation at a concentration sufficient to maintain cord 25(OH)D at ≥25–30 nmol/L. Results Mean ± SD baseline 25(OH)D was 54.9 ± 10.7 nmol/L. Total vitamin D intakes at the study endpoint (36 wk of gestation) were 12.1 ± 8.0, 21.9 ± 5.3, and 33.7 ± 5.1 µg/d in the placebo and 10-µg and 20-µg vitamin D3 groups, respectively; and 25(OH)D was 24.3 ± 5.8 and 29.2 ± 5.6 nmol/L higher in the 10- and 20-µg groups, respectively, compared with placebo (P < 0.001). For maternal 25(OH)D concentrations ≥50 nmol/L, 95% of cord sera were ≥30 nmol/L and 99% were >25 nmol/L. The estimated vitamin D intake required to maintain serum 25(OH)D at ≥50 nmol/L in 97.5% of women was 28.9 µg/d. Conclusions Thirty micrograms of vitamin D per day safely maintained serum 25(OH)D concentrations at ≥50 nmol/L in almost all white-skinned women during pregnancy at a northern latitude, which kept 25(OH)D at >25 nmol/L in 99% and ≥30 nmol/L in 95% of umbilical cord sera. This trial was registered at www.clinicaltrials.gov as NCT02506439.

scholarly journals Effects of Vitamin D Supplementation on Surrogate Markers of Fertility in PCOS Women: A Randomized Controlled Trial

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 547
Author(s):  
Elisabeth Lerchbaum ◽  
Verena Theiler-Schwetz ◽  
Martina Kollmann ◽  
Monika Wölfler ◽  
Stefan Pilz ◽  
...  
Keyword(s):  
Vitamin D ◽  
Treatment Effect ◽  
Polycystic Ovary ◽  
Controlled Trial ◽  
Dehydroepiandrosterone Sulfate ◽  
Vitamin D Supplementation ◽  
Double Blind ◽  
Significant Treatment ◽  
Hydroxyvitamin D ◽  
Randomized Controlled

Vitamin D (VD) might play an important role in polycystic ovary syndrome (PCOS) and female fertility. However, evidence from randomized controlled trials (RCT) is sparse. We examined VD effects on anti-Müllerian hormone (AMH) and other endocrine markers in PCOS and non-PCOS women. This is a post hoc analysis of a single-center, double-blind RCT conducted between December 2011 and October 2017 at the endocrine outpatient clinic at the Medical University of Graz, Austria. We included 180 PCOS women and 150 non-PCOS women with serum 25-hydroxyvitamin D (25(OH)D) concentrations <75 nmol/L in the trial. We randomized subjects to receive 20,000 IU of VD3/week (119 PCOS, 99 non-PCOS women) or placebo (61 PCOS, 51 non-PCOS women) for 24 weeks. Outcome measures were AMH, follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol, dehydroepiandrosterone sulfate, and androstenedione. In PCOS women, we observed a significant treatment effect on FSH (mean treatment effect 0.94, 95% confidence interval [CI] 0.087 to 1.799, p = 0.031) and LH/FSH ratio (mean treatment effect −0.335, 95% CI −0.621 to 0.050, p = 0.022), whereas no significant effect was observed in non-PCOS women. In PCOS women, VD treatment for 24 weeks had a significant effect on FSH and LH/FSH ratio but no effect on AMH levels.

scholarly journals Vitamin D intake, serum 25-hydroxyvitamin D status and response to moderate vitamin D3 supplementation: a randomised controlled trial in East African and Finnish women

2018 ◽  
Vol 119 (4) ◽  
pp. 431-441 ◽  
Author(s):  
Folasade A. Adebayo ◽  
Suvi T. Itkonen ◽  
Taina Öhman ◽  
Essi Skaffari ◽  
Elisa M. Saarnio ◽  
...  
Keyword(s):  
Vitamin D ◽  
Randomised Controlled Trial ◽  
Ethnic Differences ◽  
Repeated Measures ◽  
Controlled Trial ◽  
East African ◽  
Hydroxyvitamin D ◽  
Vitamin D Intake ◽  
25 Hydroxyvitamin D ◽  
Randomised Controlled

AbstractInsufficient vitamin D status (serum 25-hydroxyvitamin D (S-25(OH)D)<50 nmol/l) is common among immigrants living at the northern latitudes. We investigated ethnic differences in response of S-25(OH)D to vitamin D3 supplementation, through a 5-month randomised controlled trial, in East African and Finnish women in Southern Finland (60°N) from December 2014 to May 2015. Vitamin D intakes (dietary and supplemental) were also examined. Altogether, 191 subjects were screened and 147 women (East Africans n 72, Finns n 75) aged 21–64 years were randomised to receive placebo or 10 or 20 µg of vitamin D3/d. S-25(OH)D concentrations were assessed by liquid chromatography–tandem MS. At screening, 56 % of East Africans and 9 % of Finns had S-25(OH)D<50 nmol/l. Total vitamin D intake was higher in East Africans than in Finns (24·2 (sd 14·3) v. 15·2 (sd 13·4) µg/d, P<0·001). Baseline mean S-25(OH)D concentrations were higher in Finns (60·5 (sd=16·3) nmol/l) than in East Africans (51·5 (sd 15·4) nmol/l) (P=0·001). In repeated-measures ANCOVA (adjusted for baseline S-25(OH)D), mean S-25(OH)D increased by 8·5 and 10·0 nmol/l with a 10-µg dose and by 10·7 and 17·1 nmol/l with a 20-µg dose for Finns and East Africans, respectively (P>0·05 for differences between ethnic groups). In conclusion, high prevalence of vitamin D insufficiency existed among East African women living in Finland, despite higher vitamin D intake than their Finnish peers. Moderate vitamin D3 supplementation was effective in increasing S-25(OH)D in both groups of women, and no ethnic differences existed in the response to supplementation.

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