scholarly journals The Role of Vitamin D in Diabetes and Cardiovascular Disease: An Updated Review of the Literature

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Dimitrios Papandreou ◽  
Zujaja-Tul-Noor Hamid
Keyword(s):  
Vitamin D ◽  
Cardiovascular Diseases ◽  
Large Scale ◽  
Serum Vitamin ◽  
Strong Relationship ◽  
Baseline Serum ◽  
Vitamin D Receptors ◽  
Serum Vitamin D ◽  
Body Tissues ◽  
Vitamin D Levels

The dietary reference values for Vitamin D were set primarily considering its role in bone health, but with the discovery of Vitamin D receptors throughout body tissues, new links with other health conditions are now studied, such as for diabetes and cardiovascular diseases (CVD). This paper shall analyze and examine all new research studies carried out, especially in 2013–2015 regarding diabetes mellitus (DM) and cardiovascular diseases (CVD). Vast research has been carried out to establish strong relationship between Vitamin D serum levels, supplementation, diabetes, and CVD. However, the results from researches identified in this paper are disputable. Benefits of Vitamin D adequate levels were recognized from gestational period until later in disease development such as diabetes and/or CVD, but since not all studies are in agreement further investigation is suggested. Researches conducting large randomized controlled trials, exploring range of supplement doses, with variable baseline serum Vitamin D levels, and inclusion of array of associated parameters, are still required to conduct large-scale analysis and draw conclusion as a risk factor. Until then it is possible to conclude that maintenance of serum Vitamin D levels holds advantageous aspects in diabetic and cardiovascular conditions, and people should strive to attain them.

scholarly journals Causal analysis shows evidence of atopic dermatitis leading to an increase in vitamin D levels

2020 ◽  
Author(s):  
Daniel R Drodge ◽  
Ashley Budu-Aggrey ◽  
Lavinia Paternoster
Keyword(s):  
Vitamin D ◽  
Atopic Dermatitis ◽  
Serum Vitamin ◽  
Strong Relationship ◽  
Reverse Direction ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Standard Deviations ◽  
The Relationship ◽  
Gwa Studies

AbstractAtopic dermatitis (AD) patients have been observed to have lower vitamin D levels. Previous studies have found little evidence that vitamin D levels causally influence the risk of AD, but the reverse direction has not yet been investigated.Here we used Mendelian Randomization to assess the causal relationship between AD and serum vitamin D levels, using genetic data from the most recent GWA studies of vitamin D and AD.There was little evidence for vitamin D levels causally influencing AD risk (odds per standard deviations increase in log-transformed vitamin D levels =1.233, 95% CI 0.927 to 1.639, P-value =0.150). However, genetic liability for AD raises serum vitamin D levels by 0.043 (95% CI 0.017 to 0.069) standard deviations per doubling of odds of disease (P-value =0.001). The AD-associated filaggrin (FLG) mutation R501X appears to show a particularly strong relationship with vitamin D. However, the relationship between AD and vitamin D holds when R501X is omitted (0.018, 95% CI 0.004 to 0.031, P-value =0.008).We found evidence that AD is causally associated with an increase in serum vitamin D levels. Whilst the AD-associated FLG gene has a particularly strong relationship with vitamin D, other AD SNPs show a consistent direction of effect, suggesting that AD more generally influences serum vitamin D levels.

Association Between cardiometabolic risk factor and responsiveness to vitamin D supplementation: A New Approach using Artificial Neural Network analysis

2020 ◽  
Author(s):  
Elahe Allahyari ◽  
Parichehr Hanachi ◽  
Seyed Jamal Mirmoosavi ◽  
Gordon A. Ferns ◽  
Afsane Bahrami ◽  
...  
Keyword(s):  
Vitamin D ◽  
Risk Factor ◽  
Cardiometabolic Risk ◽  
Serum Vitamin ◽  
Vitamin D Supplementation ◽  
Cardiometabolic Risk Factor ◽  
Baseline Serum ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Artificial Neural

Abstract BackgroundAccumulating data have highlighted the prominence of supplementation as an effective approach for vitamin D deficiency. But individuals vary in their response to vitamin D supplementation. In this study, the effect of cardiometabolic risk factors were evaluate on magnitude of response to vitamin D supplementation by using novel statistical analysis, artificial neural networks(ANNs).Methods608 participants aged between 12 to 19 years old were assed in this prospective interventional study. Nine vitamin D capsules containing 50000IU vitamin D/weekly were given to all participants over the 9 week period. The change in serum 25(OH)D level was calculated as the difference between post-supplementation and basal levels. Suitable ANNs model were selected between different algorithms in the hidden and output layers and different numbers of neurons in the hidden layer. Then, the major determinants in predicting response to vitamin D supplementations were identified (Trial registration: IRCT201509047117N7; 2015-11-25; Retrospectively registered)ResultsSigmoid in both hidden and output layers with 4 hidden neurons had acceptable sensitivity, specificity and accuracy area under the ROC curve in our study. Baseline serum vitamin D (30.4%), waist to hip ratio (10.5%), BMI (10.5%), systolic blood pressure (8%), heart rate (6.4%), and waist circumference (6.1%) were the greatest importance in predicting the response in serum vitamin D levels. ConclusionWe provide the first attempt to relate anthropometric specific recommendations to attain serum vitamin D targets. With the exception of cardiometabolic risk factor, the relative importance of other factors and the mechanisms by which these factors may affect the response requires further analysis in future studies.

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>

Abstract P010: Serum Vitamin D and Risk of Heart Failure: Prospective Results From the Moli-sani Study

Circulation ◽  
2016 ◽  
Vol 133 (suppl_1) ◽  
Author(s):  
Simona Costanzo ◽  
Amalia De Curtis ◽  
Augusto Di Castelnuovo ◽  
Mariarosaria Persichillo ◽  
Maria B Donati ◽  
...  
Keyword(s):  
Heart Failure ◽  
Vitamin D ◽  
Multivariable Analysis ◽  
Serum Vitamin ◽  
C Reactive Protein ◽  
Baseline Serum ◽  
Serum Vitamin D ◽  
Reactive Protein ◽  
Vitamin D Levels ◽  
Incident Cases

Introduction: Vitamin D deficiency has been associated with the progression of heart failure (HF) and Vitamin D supplementation may have protective effects in patients with HF. However, little is known on the predictive value of circulating Vitamin D levels on HF risk. Hypothesis: Low serum Vitamin D levels are associated with incident HF in a large prospective cohort of Italian adults. Methods: We analyzed 18,689 (48.4% men, age ≥35 years) HF-free individuals randomly recruited from the general population of the Moli-sani study, for whom complete data on HF and serum Vitamin D were available. Vitamin D was measured on serum by an immunoassay in the central laboratory of European BiomarCaRE project (Abbott Architect 25-OH Vitamin D, Wiesbaden, Germany). The cohort was followed up for a median of 4.2 years (80,849 person-years). Baseline serum Vitamin D was categorized in deficient/insufficient, hypovitaminosis, and normal (Table). Incident cases of HF were identified by linkage with the regional archive of hospital discharges. Hazard ratios (HRs) were calculated using Cox-proportional hazard models. Results: Subjects with normal, hypo or insufficient levels of Vitamin D were 12.2%, 79.6% and 8.2%, respectively. We identified 412 incident cases of HF. The incidence of HF was 1.1%, 2.2% and 3.9%, respectively in subjects with normal, hypo and insufficient levels of Vitamin D. After a multivariable analysis, considering a large panel of potential covariates, individuals with deficient/insufficient levels of serum Vitamin D showed a higher risk of developing HF (HR: 1.78, 95% CI: 1.07-2.97) than those with normal levels. Further adjustment for C-Reactive Protein did not modify the association (Table). Conclusions: Deficiency of Vitamin D is associated with a significantly higher risk of HF in a general adult population. This association was not explained by an inflammatory marker such as C-Reactive Protein.

scholarly journals Low Serum Vitamin D Levels Are Associated With Inferior Survival in Follicular Lymphoma: A Prospective Evaluation in SWOG and LYSA Studies

2015 ◽  
Vol 33 (13) ◽  
pp. 1482-1490 ◽  
Author(s):  
Jennifer L. Kelly ◽  
Gilles Salles ◽  
Bryan Goldman ◽  
Richard I. Fisher ◽  
Pauline Brice ◽  
...  
Keyword(s):  
Vitamin D ◽  
Overall Survival ◽  
Follicular Lymphoma ◽  
Serum Vitamin ◽  
Baseline Serum ◽  
Serum Vitamin D ◽  
Hazard Ratios ◽  
Vitamin D Levels ◽  
The Impact

Purpose Recent literature reports a potential association between high vitamin D and improved lymphoma prognosis. We evaluated the impact of pretreatment vitamin D on follicular lymphoma (FL) outcome. Patients and Methods SWOG participants were previously untreated patients with FL enrolled onto SWOG clinical trials (S9800, S9911, or S0016) involving CHOP chemotherapy plus an anti-CD20 antibody (rituximab or iodine-131 tositumomab) between 1998 and 2008. Participants included in our second independent cohort were also previously untreated patients with FL enrolled onto the Lymphoma Study Association (LYSA) PRIMA trial of rituximab plus chemotherapy (randomly assigned to rituximab maintenance v observation) between 2004 and 2007. Using the gold-standard liquid chromatography–tandem mass spectrometry method, 25-hydroxyvitamin D was measured in stored baseline serum samples. The primary end point was progression-free survival (PFS). Results After a median follow-up of 5.4 years, the adjusted PFS and overall survival hazard ratios for the SWOG cohort were 1.97 (95% CI, 1.10 to 3.53) and 4.16 (95% CI, 1.66 to 10.44), respectively, for those who were vitamin D deficient (< 20 ng/mL; 15% of cohort). After a median follow-up of 6.6 years, the adjusted PFS and overall survival hazard ratios for the LYSA cohort were 1.50 (95% CI, 0.93 to 2.42) and 1.92 (95% CI, 0.72 to 5.13), respectively, for those who were vitamin D deficient (< 10 ng/mL; 25% of cohort). Conclusion Although statistical significance was not reached in the LYSA cohort, the consistent estimates of association between low vitamin D levels and FL outcomes in two independent cohorts suggests that serum vitamin D might be the first potentially modifiable factor to be associated with FL survival. Further investigation is needed to determine the effects of vitamin D supplementation in this clinical setting.

scholarly journals Role of Vitamin D Receptor in Prediabetes

2020 ◽  
Vol 10 (1) ◽  
pp. 20-25
Author(s):  
Simmi Kharb ◽  
Kanika Goel ◽  
Rajesh Rajput
Keyword(s):  
Vitamin D ◽  
Vitamin D Receptor ◽  
Serum Vitamin ◽  
Receptor Protein ◽  
Control Group ◽  
Vitamin D Receptors ◽  
Serum Vitamin D ◽  
Protein Levels ◽  
Vitamin D Levels ◽  
25 Hydroxy Vitamin D

Background: Recent epidemiological evidence points towards the potential association of vitamin D insufficiency with adverse metabolic risk and in the pathogenesis of cancer, cardiovascular diseases, type 2 diabetes and other diseases. Vitamin D exerts its action in a variety of cell types through vitamin D receptors. No reports are available in the literature regarding vitamin D and vitamin D receptor status in prediabetics. The present study was planned to compare serum 25-hydroxy vitamin D [25(OH)D] and vitamin D receptor (VDR) protein levels in prediabetic cases and normoglycemic controls. Methods: The present study was conducted in 80 persons who were divided into two groups, Study group (n= 40) comprised of diagnosed cases of prediabetes and control group (n=40) comprised of healthy normoglycemic controls. Serum 25-hydroxy vitamin D [25(OH)D] was analyzed by radioimmunoassay (RIA). Serum vitamin D receptor (VDR) protein was analyzed by sandwich enzyme immunoassay (ELISA). Results: Serum 25(OH) vitamin D levels were significantly decreased in prediabetic cases as compared to normoglycemic controls [p<0.001]. Serum Vitamin D receptor protein levels were highly significantly decreased in prediabetic cases as compared to normoglycemic controls [p<0.00]. Serum 25(OH)D levels showed a highly significant positive correlation with serum VDR levels in both the groups [p<0.001 at both levels]. Conclusion: The findings of the present study indicate that vitamin D and VDR can serve as a possible screening marker and target for modulation of the management and alleviating the progress and complications of diabetes.

scholarly journals Assessment of Serum Vitamin D Levels in Patients with Vitiligo in Jordan: A Case-Control Study

2019 ◽  
Vol 2019 ◽  
pp. 1-4 ◽  
Author(s):  
Diala M. Alshiyab ◽  
Firas A. Al-qarqaz ◽  
Leen H. Heis ◽  
Jihan M. Muhaidat ◽  
Wlla S. Eddin ◽  
...  
Keyword(s):  
Vitamin D ◽  
Case Control Study ◽  
Skin Diseases ◽  
Serum Vitamin ◽  
Case Control ◽  
Vitamin D Receptors ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Significant Difference ◽  
Control Study

Background. Low vitamin D serum levels have been associated with many autoimmune disorders and several other skin diseases. Vitiligo is an autoimmune disease characterized by destruction of melanocytes by immune mechanisms. Melanocytes express vitamin D receptors, and their function can be affected by vitamin D status. Objectives. The main objective of this study is to compare vitamin D levels in patients with vitiligo vs normal population and whether vitamin D deficiency is associated with vitiligo. Methods. A case-control study was conducted. 100 vitiligo patients and 100 as controls were included in this study. Serum vitamin D level was measured for both vitiligo patients and controls, results were compared, and statistical analysis was done to compare the results. Results. The median age of vitiligo cases was 23 years (ranges, 2–80). 58% of vitiligo patients were females. The median vitamin D level was not significantly different between the two groups (vitiligo = 14.1 (IQR 9.9–20.4) vs control = 16.5 (IQR 10.3–25.3) (P=0.28)). Most vitiligo cases and controls were found to have low levels of vitamin D (either insufficient 20–30 ng/mL or low <20 ng/mL). Conclusions. There was no significant difference in vitamin D levels in vitiligo patients compared to controls. However, vitamin D levels were generally low in both groups.

scholarly journals Vitamin D in Critically Ill Patients - From Molecular Damage Interactions to Clinical Outcomes Benefits. When, Why, How?

2018 ◽  
Vol 1 (1) ◽  
pp. 59-66 ◽  
Author(s):  
Alida Moise
Keyword(s):  
Vitamin D ◽  
Cognitive Impairment ◽  
Regulation Of Gene Expression ◽  
Serum Vitamin ◽  
Vitamin D Supplementation ◽  
Multiple Roles ◽  
Transcriptional Level ◽  
Baseline Serum ◽  
Serum Vitamin D ◽  
Vitamin D Levels

Abstract Vitamin D - „the sunshine vitamin” is essential for the good functioning of the human body. The most important forms of the vitamin D are the vitamin D2 and the vitamin D3, both biologically inactived. Vitamin D can come from: diet or nutritiv suplimentts and skin. The activation of vitamin D is effect in two steps to the physiologically active 1,25-dihydroxyvitamin D [1,25(OH)2D]. The biological actions of Vitamin D involve regulation of gene expression at the transcriptional level and are mediated through binding to a Vitamin D Receptor (VDR). Vitamin D has multiple roles: hormonale/ nonhormonale, skeletale/nonscheletale, genomice/nongenomice. Interesting is inversely corelation between Vitamin D and total body fat (BMI) and correlation between Vitamin D and cognitive impairment, especially Alzheimer Disease or delirium during hospitalisation. The curent recomandations regarding the supplying with Vitamin D are different for regions of the globe, also differ depending on the baseline serum Vitamin D and on the desired effect. So, potential nonskeletal effects occur at levels >30ng/ml, above 50-75ng/ml, serum level who should become the target of the supplementation. The loading dose should be considered perioperatively for rapid effects. In conclusion, Vitamin D is more than just a vitamin. It is a substance with multiple roles in body’s economy, and in recent years there has been an interest in the relation be tween vitamin D deficiency and obesity or cognitive impairment. The majority of the data supports association, not causation, of low vitamin D levels. In other words, much of data does not clearly support the idea that vitamin D supplementation in a patient with low vitamin D levels reduces the risk of these diseases. But, the supplimentation is very easy and no harm might be done.

scholarly journals Effect of Serum Vitamin D Levels on Cardiovascular Mortality and Cardiovascular Disease Risk

2012 ◽  
Vol 17 (3) ◽  
pp. 206-211 ◽  
Author(s):  
Aaron S. Bennion ◽  
Karlen E. Luthy ◽  
Donna S. Freeborn ◽  
Renea L. Beckstrand
Keyword(s):  
Cardiovascular Disease ◽  
Vitamin D ◽  
Disease Risk ◽  
Cardiovascular Disease Risk ◽  
Serum Vitamin ◽  
Vitamin D Supplementation ◽  
Vitamin D Receptors ◽  
Serum Vitamin D ◽  
Increased Risk ◽  
Vitamin D Levels

Vitamin D deficiency is prevalent across all geographic areas, age groups, and seasons and is increasing in incidence. Vitamin D receptors have been found to be present in almost every body cell and tissue. Clinical research has alluded to a preventive effect of vitamin D supplementation on cardiovascular disorders such as myocardial infarction, hypertension, and dyslipidemia. Furthermore, a low serum vitamin D level has been associated with an increased risk for cardiovascular disease. This article examines the association between serum vitamin D levels and cardiovascular disease mortality and risk.

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