scholarly journals Meta-analysis of vitamin D and lung function in patients with asthma

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Jian Liu ◽  
Yong-Quan Dong ◽  
Jie Yin ◽  
Jian Yao ◽  
Jie Shen ◽  
...  
Keyword(s):  
Vitamin D ◽  
Lung Function ◽  
Meta Analysis ◽  
Serum Vitamin ◽  
Forced Expiratory Volume ◽  
Asthma Control Test ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Asthma Patients ◽  
Sufficient Vitamin

Abstract Background There is growing literature suggesting a link between vitamin D and asthma lung function, but the results from systematic reviews are conflicting. We conducted this meta-analysis to investigate the relation between serum vitamin D and lung function in asthma patients. Methods Major databases, including OVID, MEDLINE, Web of Science and PUBMED, were searched until 10th October 2018. All published observational studies related to vitamin D and asthma were extracted. All meta-analyses were performed using Review Manager 5.3.5. Results This quantitative synthesis found that asthma patients with low vitamin D levels had lower forced expiratory volume In 1 s (FEV1) (mean difference (MD) = − 0.1, 95% CI = − 0.11 to − 0.08,p < 0.01;I2 = 49%, p = 0.12) and FEV1% (MD = − 10.02, 95% CI = − 11 to − 9.04, p < 0.01; I2 = 0%, p = 0.82) than those with sufficient vitamin D levels. A positive relation was found between vitamin D and FEV1 (r = 0.12, 95% CI = 0.04 to 0.2, p = 0.003; I2 = 59%,p = 0.01), FEV1% (r = 0.19, 95% CI = 0.13 to 0.26, p < 0.001; I2 = 42%, p = 0.11), forced vital capacity (FVC) (r = 0.17, 95% CI = 0.00 to 0.34, p = 0.05; I2 = 60%, p = 0.04), FEV1/FVC (r = 0.4, 95% CI = 0.3 to 0.51, p < 0.001; I2 = 48%, p = 0.07), and the asthma control test (ACT) (r = 0.33, 95% CI = 0.2 to 0.47, p < 0.001; I2 = 0%, p = 0.7). Subgroup analysis indicated that the positive correlation between vitamin D and lung function remained significant in both children and adults. Conclusions Our meta-analysis suggested that serum vitamin D levels may be positively correlated with lung function in asthma patients. Future comprehensive studies are required to confirm these relations and to elucidate potential mechanisms.

Serum vitamin D levels in females with urinary incontinence: a meta-analysis of observational trials

2021 ◽  
Author(s):  
Chih-Chen Hsu ◽  
Yu-Chen Huang ◽  
Syuan-Hao Syu ◽  
Hung-Jen Shih ◽  
Yung-Wei Lin ◽  
...  
Keyword(s):  
Vitamin D ◽  
Urinary Incontinence ◽  
Meta Analysis ◽  
Serum Vitamin ◽  
Serum Vitamin D ◽  
Vitamin D Levels

scholarly journals Evaluation of efficacy of a nanoparticle based vitamin D formulation in correction of vitamin D levels in patients with documented deficiency or insufficiency of vitamin D

2017 ◽  
Vol 3 (3) ◽  
pp. 486
Author(s):  
Kishore A. Manek
Keyword(s):  
Vitamin D ◽  
Serum Vitamin ◽  
Vitamin D Supplementation ◽  
Open Label ◽  
Baseline Serum ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Post Marketing ◽  
Sufficient Vitamin ◽  
To Receive

<p><strong>Background:</strong> In India more than 90% of apparently healthy Indians have subnormal 25(OH) D levels. To maintain sufficient vitamin D level, apart from sunlight and food containing vitamin D, supplementation with vitamin D is also required. The objective of this study was to find out effectiveness of nanoparticle based vitamin D formulations in patient of vitamin D deficiency and insufficiency</p><p><strong>Methods:</strong> This was a prospective, open label, single arm, non-comparative, dose response post-marketing efficacy study (PMS) – phase-4 study to find the effectiveness of a nanoparticle based vitamin D formulation in adult patients between 18 to 65 years of either gender, attending/visiting the study site with documented deficiency or insufficiency of vitamin D (&lt;30 ng/ml) or sign and symptoms of deficiency or insufficiency of vitamin D. Each subject planned to receive 60,000 IU of nanoparticle based vitamin D, once weekly, for 8 weeks orally. Serum 25(OH) D levels were measured at baseline, 4 and 8 week.</p><p><strong>Results:</strong> The mean baseline serum 25[OH] D levels were 15.90. After treatment with nanoparticle based vitamin D there was a significant increase in the serum vitamin D levels at 4 weeks (41.03) and 8 weeks (31.38) (p&lt;0.0001). Patients who have received treatment for at least 4 weeks’ period (n=38), the improvement (serum 25[OH] D &gt;30 ng/ml) was seen in 84.2% patients (n=32) at the end of 4 weeks itself. There is significant increased (&lt;0.0001) in the physical component scores of the SF-12 QOL questionnaire after 8 weeks of therapy.</p><p><strong>Conclusions:</strong> Nanoparticle based formulation of vitamin D<sub>3</sub> is effective and safe in correction of vitamin D levels in patients with documented deficiency or insufficiency of vitamin D. Also the safety and tolerability is well accepted and reported good to excellent by patients and physician.</p><p> </p>

Vitamin D Levels in Pregnant Congolese Women and Their New-Borns, and the Association with Neonatal Outcomes – A Pilot Study

2020 ◽  
Author(s):  
Gurpreet Dhillon ◽  
Sunil Rai ◽  
Harpreet Dhillon ◽  
Shibu Sasidharan ◽  
Costa Kimweri ◽  
...  
Keyword(s):  
Vitamin D ◽  
Pregnant Women ◽  
Vitamin D Deficiency ◽  
Serum Vitamin ◽  
Preterm Births ◽  
Maternal Serum ◽  
Neonatal Outcomes ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Sufficient Vitamin

Abstract Background: This study was thus undertaken to study the estimation of vitamin D levels in pregnant women and their newborns in DRC and to study its association with various neonatal outcomes. Methods: Observational study done on 569 pregnant women and their newborn babies. Sample obtained from maternal serum and cord blood from the placental end during peripartum period. The data was analysed to estimate the prevalence of vitamin D levels in mothers and newborns and to identify association, if any, between maternal vitamin D levels and neonatal outcomes.Results: 464 mothers had sufficient vitamin D (VDS) levels (>30 ng/dL) and 105 had vitamin D deficiency (VDD) with mean maternal serum vitamin D level of 35.63ng/ml (SD 6.18, range 9.2-39.8). All the newborns (n=569) were vitamin D deficient (<30ng/ml). The percentage of LBW babies born to VDD mothers was 18.09%, which was very similar to the percentage of LBW babies born to VDS mothers (18.31%) (p=0.76456749). The incidence of caesarean section was 58.09% in the vitamin D deficient (VDD) group as compared to 19.61% in the sufficient (VDS) group (p<0.0005). The incidence of preterm births was 10.77% in the sufficient group (VDS) as compared to 17.14% in the vitamin D deficient (VDD) group (p=0.038). Conclusion: Our findings will help health professionals, policy makers, and the general public in Africa aware of the high prevalence of vitamin D deficiency and the associated health risks.

scholarly journals Serum Vitamin D Levels and Polycystic Ovary syndrome: A Systematic Review and Meta-Analysis

Nutrients ◽  
2015 ◽  
Vol 7 (6) ◽  
pp. 4555-4577 ◽  
Author(s):  
Chunla He ◽  
Zhoumeng Lin ◽  
Sara Robb ◽  
Amara Ezeamama
Keyword(s):  
Systematic Review ◽  
Vitamin D ◽  
Polycystic Ovary Syndrome ◽  
Polycystic Ovary ◽  
Meta Analysis ◽  
Serum Vitamin ◽  
Ovary Syndrome ◽  
Serum Vitamin D ◽  
Vitamin D Levels
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