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The Role of Vitamin D in Supporting Health in the COVID-19 Era

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Vitamin D, vitamin D-binding protein, free vitamin D and COVID-19 mortality in hospitalized patients

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Summary: Vitamin D status is not significantly associated with mortality from COVID-19, but extremely low and high levels may be associated with mortality risks.

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Prognostic and Therapeutic Role of Vitamin D in COVID-19: Systematic Review and Meta-analysis

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Summary: Multiple observational studies involving nearly 2 million adults suggest that vitamin D deficiency/insufficiency increases susceptibility to COVID-19 and severe COVID-19, although with a high risk of bias and heterogeneity. Association with mortality was less robust. Heterogeneity in RCTs precluded their meta-analysis.

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Association of Vitamin D Status and COVID-19-Related Hospitalization and Mortality

Karen H. Seal et al.

Summary: This study aims to investigate the relationship between vitamin D status and COVID-19-related clinical outcomes. The results show a significant inverse dose-response relationship between continuous 25(OH)D concentrations and COVID-19-related hospitalization and mortality after adjusting for factors associated with both vitamin D deficiency and COVID-19 outcomes.

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Vitamin D deficiency in critically ill COVID-19 ARDS patients

Quirin Notz et al.

Summary: Vitamin D deficiency is common in COVID-19 ARDS patients. While 25-hydroxyvitamin D status is not related to clinical course changes, low levels of 1,25-dihydroxyvitamin D are associated with prolonged mechanical ventilation and a worse APACHE II score.

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A critical update on the role of mild and serious vitamin D deficiency prevalence and the COVID-19 epidemic in Europe

Dimitra Rafailia Bakaloudi et al.

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Pre-infection 25-hydroxyvitamin D3 levels and association with severity of COVID-19 illness

Amiel A. Dror et al.

Summary: This study found that pre-infection deficiency of vitamin D is associated with increased disease severity and mortality in hospitalized COVID-19 patients.

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Is There a Crucial Link Between Vitamin D Status and Inflammatory Response in Patients With COVID-19?

Federica Saponaro et al.

Summary: This study investigated the relationship between vitamin D levels and inflammatory markers in COVID-19 patients. The findings suggest that hypovitaminosis D is associated with higher levels of inflammatory markers and is related to disease severity and prognosis.

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A large-scale computational screen identifies strong potential inhibitors for disrupting SARS-CoV-2 S-protein and human ACE2 interaction

Adarsh Singh et al.

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Vitamin D3 and its hydroxyderivatives as promising drugs against COVID-19: a computational study

Yuwei Song et al.

Summary: The study suggests that vitamin D3 and its hydroxyderivatives could serve as TMPRSS2 inhibitors and inhibit the binding of ACE2 to SARS-CoV-2 RBD to prevent viral entry. Interaction of 1,25(OH)2D3 with SARS-CoV-2 RBD and ACE2 results in conformational changes that interrupt their binding.

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Vitamin D supplementation and COVID-19 risk: a population-based, cohort study

J. Oristrell et al.

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Vitamin D Status and Clinical Outcomes in Acute Respiratory Distress Syndrome: A Secondary Analysis From the Assessment of Low Tidal Volume and Elevated End-Expiratory Volume to Obviate Lung Injury (ALVEOLI) Trial

Sadeq A. Quraishi et al.

Summary: The study found that in ARDS patients, vitamin D levels are associated with duration of mechanical ventilation and 90-day mortality. Patients with lower 25OHD levels had longer ventilation time and higher risk of mortality. Randomized, controlled trials are needed to determine if vitamin D supplementation can improve clinical outcomes in ARDS patients.

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Short term, high-dose vitamin D supplementation for COVID-19 disease: a randomised, placebo-controlled, study (SHADE study)

Ashu Rastogi et al.

Summary: This study investigates the effect of high-dose oral cholecalciferol supplementation on SARS-CoV-2 viral clearance. The results show that supplementation with cholecalciferol can increase the proportion of vitamin D-deficient individuals who become SARS-CoV-2 RNA negative and reduce fibrinogen levels.

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Vitamin D deficiency as a predictor of poor prognosis in patients with acute respiratory failure due to COVID-19

G. E. Carpagnano et al.

Summary: This study analyzed vitamin D levels in patients with acute respiratory failure due to COVID-19 and found a high prevalence of hypovitaminosis D, with severe deficiency associated with significantly higher mortality risk. Severe vitamin D deficiency may be a marker of poor prognosis in these patients, suggesting that adjunctive treatment might improve disease outcomes.

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Perspective: Vitamin D deficiency and COVID-19 severity - plausibly linked by latitude, ethnicity, impacts on cytokines, ACE2 and thrombosis

J. M. Rhodes et al.

Summary: There is substantial evidence supporting a link between vitamin D deficiency and COVID-19 severity, although the evidence is indirect. Community-based placebo-controlled trials of vitamin D supplementation may be challenging, but further evidence may come from large cohort studies with prescribing data or serum 25(OH) vitamin D level assays. In the meantime, vitamin D supplementation is strongly recommended for individuals at risk of deficiency.

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The cytokine storm and COVID-19

Biying Hu et al.

Summary: COVID-19, caused by SARS-CoV-2, has become a global pandemic since its emergence in Wuhan, China, in December 2019, posing a serious threat to public health. Close contact and respiratory droplets are the main modes of transmission. The cytokine storm is closely associated with disease severity and mortality, emphasizing the importance of studying and treating the cytokine storm in COVID-19.

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Vitamin D insufficiency as a potential culprit in critical COVID-19 patients

Ruhul Munshi et al.

Summary: The study suggests that serum vitamin D levels may be associated with the prognosis of COVID-19. Diagnosis of vitamin D deficiency could assist in assessing patients' potential for developing severe COVID-19, and appropriate preventative and/or therapeutic interventions may improve COVID-19 outcomes.

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Serum level of vitamin D as a predictor for severity and outcome of pneumonia

Tarik Saber Sarhan et al.

Summary: The study demonstrates a high prevalence of vitamin D deficiency among pneumonia patients, with deficient individuals showing higher disease severity and complication rates. Furthermore, there is a correlation between vitamin D levels and the severity and outcomes of pneumonia.

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Vitamin D Inhibits Lipopolysaccharide (LPS)-Induced Inflammation in A549 Cells by Downregulating Inflammatory Cytokines

Vesara A. Gatera et al.

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Stephany Beyerstedt et al.

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Low Vitamin D Status Is Associated with Inflammation in Patients with Chronic Obstructive Pulmonary Disease

Lin Fu et al.

Summary: Vitamin D deficiency is associated with increased inflammation in COPD patients. As the severity of COPD worsens, serum 25(OH)D levels gradually decrease. Activation of NF-kappa B and AP-1 signaling pathways is observed in COPD patients.

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Treatment With 25-Hydroxyvitamin D3 (Calcifediol) Is Associated With a Reduction in the Blood Neutrophil-to-Lymphocyte Ratio Marker of Disease Severity in Hospitalized Patients With COVID-19: A Pilot Multicenter, Randomized, Placebo-Controlled, Double-Blinded Clinical Trial

Zhila Maghbooli et al.

Summary: The study demonstrated that oral 25(OH)D3 corrected vitamin D deficiency/insufficiency in COVID-19 patients, leading to improved immune function by increasing lymphocyte counts. This treatment was associated with reduced intensive care unit admission days and mortality.

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Dysregulation of Cell Signaling by SARS-CoV-2

Rahul K. Suryawanshi et al.

Summary: SARS-CoV-2 infection manipulates host pathways, reorganizes host cell structure, impairs innate cellular defenses, and induces delayed hyperinflammation while weakening interferon response. Understanding the complex interactions between SARS-CoV-2 and host signaling pathways provides crucial strategic clues for the development of novel therapeutics.

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Effectiveness of In-Hospital Cholecalciferol Use on Clinical Outcomes in Comorbid COVID-19 Patients: A Hypothesis-Generating Study

Sandro Giannini et al.

Summary: This retrospective study aimed to examine the clinical outcome of hospitalized COVID-19 patients receiving high-dose cholecalciferol treatment. The study found that the therapeutic effect of vitamin D treatment on COVID-19 patients may be significantly impacted by the burden of comorbidities.

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Vitamin D supplementation prior to or during COVID-19 associated with better 3-month survival in geriatric patients: Extension phase of the GERIA-COVID study

Cedric Annweiler et al.

Summary: The study found that supplementation of vitamin D3 prior to or during COVID-19 was associated with better 3-month survival in geriatric patients hospitalized for COVID-19. The intervention group had a significantly higher survival rate at 3 months compared to the comparator group, with a lower hazard ratio for 3-month mortality.

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Effects of vitamin D on macrophages and myeloid-derived suppressor cells (MDSCs) hyperinflammatory response in the lungs of COVID-19 patients

Malgorzata Kloc et al.

Summary: Vitamin D plays a crucial role in regulating homeostasis, immune response, and inflammation. Vitamin D deficiency can worsen the severity of ARDS in COVID-19 infection, while supplementation may help alleviate ARDS symptoms by influencing inflammatory response in macrophages and MDSCs.

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Perspective: Vitamin D supplementation prevents rickets and acute respiratory infections when given as daily maintenance but not as intermittent bolus: implications for COVID-19

George Griffin et al.

Summary: Recent studies have shown that high-dose intermittent bolus vitamin D therapy is ineffective at preventing rickets, and low dose daily maintenance is recommended instead. The well-documented associations between COVID-19 risk and vitamin D deficiency make this particularly important during the current pandemic.

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Non-Musculoskeletal Benefits of Vitamin D beyond the Musculoskeletal System

Sicheng Zhang et al.

Summary: Vitamin D plays a crucial role in human health, not only in the musculoskeletal system but also in other areas. Deficiency of vitamin D is associated with various diseases, including osteoporosis, cardiovascular diseases, and cancer. More research is needed to assess the role of vitamin D in optimizing health and preventing diseases.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2021)

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Effect of a Single High Dose of Vitamin D3 on Hospital Length of Stay in Patients With Moderate to Severe COVID-19 A Randomized Clinical Trial

Igor H. Murai et al.

Summary: The study found that a single high dose of vitamin D-3 did not significantly reduce hospital length of stay among hospitalized patients with COVID-19. The findings do not support the use of a high dose of vitamin D-3 for treatment of moderate to severe COVID-19.

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Vitamin D and COVID-19: A review on the role of vitamin D in preventing and reducing the severity of COVID-19 infection

Mobeen Abdrabbo et al.

Summary: Recent studies suggest that Vitamin D supplementation can reduce oxidative stress, potentially benefitting in preventing COVID-19 infection. However, the relationship between Vitamin D deficiency, oxidative stress, and the severity of COVID-19 remains unclear.

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Vitamin D and Lung Outcomes in Elderly COVID-19 Patients

Alberto Sulli et al.

Summary: The study demonstrates that vitamin D deficiency in COVID-19 patients is associated with severe lung involvement, longer disease duration, and higher risk of death, particularly in elderly patients. Low vitamin D levels are negatively correlated with the severity of radiologic pulmonary involvement.

NUTRIENTS (2021)

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Rapid and Effective Vitamin D Supplementation May Present Better Clinical Outcomes in COVID-19 (SARS-CoV-2) Patients by Altering Serum INOS1, IL1B, IFNg, Cathelicidin-LL37, and ICAM1

Mustafa Sait Gonen et al.

Summary: The study found that vitamin D treatment in COVID-19 patients can significantly increase serum vitamin D levels, shorten hospital stays, and reduce mortality. Vitamin D supplementation may work by regulating specific biomarkers.

NUTRIENTS (2021)

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Real world evidence of calcifediol or vitamin D prescription and mortality rate of COVID-19 in a retrospective cohort of hospitalized Andalusian patients

Carlos Loucera et al.

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SCIENTIFIC REPORTS (2021)

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M. Cherrie et al.

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The association between vitamin D levels and the clinical severity and inflammation markers in pediatric COVID-19 patients: single-center experience from a pandemic hospital

Elvan Bayramoglu et al.

Summary: This study investigated the relationship between vitamin D levels and clinical severity as well as inflammation markers in children and adolescents with COVID-19. The results showed that vitamin D deficiency was associated with higher clinical severity and inflammation markers, suggesting a potential role of vitamin D in modulating the systemic inflammatory response in pediatric COVID-19 cases.

EUROPEAN JOURNAL OF PEDIATRICS (2021)

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Vitamin D and Beta-Glucans Synergically Stimulate Human Macrophage Activity

Loredana Bergandi et al.

Summary: The combined treatment with vitamin D and beta-glucans was found to enhance the immunomodulatory properties of human macrophages, leading to increased cytokine production, intracellular vesicle acidification, and changes in energy metabolism. These results suggest a novel therapeutic approach using the synergy between the two natural compounds to boost the immune response.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2021)

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The Effects of Vitamin D on Immune System and Inflammatory Diseases

Tomoka Ao et al.

Summary: Vitamin D plays a crucial role in immune cells and has anti-inflammatory effects. Deficiency in vitamin D is associated with infectious diseases and autoimmune diseases, though its impact on treatment and prevention remains controversial.

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Vitamin D and its therapeutic relevance in pulmonary diseases

Shaniya Ahmad et al.

Summary: Vitamin D plays a key role in various cellular processes and has been associated with maintaining bone and calcium homeostasis, as well as regulating host defense, immunity, and inflammation. Studies have shown correlations between vitamin D deficiency and progression of lung disorders, although the underlying mechanism remains unclear. Vitamin D has inhibitory effects on pulmonary inflammation and enhances innate immune defenses through influencing multiple inflammatory cells.

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A Strong Seasonality Pattern for Covid-19 Incidence Rates Modulated by UV Radiation Levels

Christos Karapiperis et al.

Summary: The study found that UV radiation is strongly associated with Covid-19 incidence rates, more so than mobility, making it a key indicator for seasonality. The findings can inform public health emergency measures based on seasons in the Northern and Southern Hemispheres.

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Vitamin D Review: The Low Hanging Fruit for Human Health

Lucy N. W. Mungai et al.

Summary: Vitamin D plays a crucial role in regulating calcium and phosphate metabolism, affecting not only bone and teeth health but also various biological processes such as cell growth, immune regulation, and DNA stability. Despite being synthesized in the body through sunlight exposure, many individuals still have low levels of vitamin D, highlighting the importance of understanding how it functions in the body.

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Climate and the spread of COVID-19

Simiao Chen et al.

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SCIENTIFIC REPORTS (2021)

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No association between vitamin D status and COVID-19 infection in Sao Paulo, Brazil

Cynthia M. Alvares Brandao et al.

Summary: The study found no association between 25(OH)D levels and susceptibility to COVID-19 in the specific population studied and suggested that clinical, environmental, socioeconomic, and cultural factors may play a greater role in determining susceptibility to the infection.

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Intravenous calcitriol administration regulates the renin-angiotensin system and attenuates acute lung injury in obese mice complicated with polymicrobial sepsis

Chiu-Li Yeh et al.

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BIOMEDICINE & PHARMACOTHERAPY (2021)

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A systematic review and meta-analysis of effect of vitamin D levels on the incidence of COVID-19

Luiza Szarpak et al.

Summary: This meta-analysis found that low serum vitamin D levels are significantly associated with the risk of COVID-19 infection, especially in the deficiency risk groups where supplementation of vitamin D is indicated.

CARDIOLOGY JOURNAL (2021)

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The effect of high-dose parenteral vitamin D3 on COVID-19-related inhospital mortality in critical COVID-19 patients during intensive care unit admission: an observational cohort study

Mehmet Guven et al.

Summary: This study aimed to investigate the relationship between clinical course and inhospital mortality with high-dose vitamin D-3 administration within the first 24 hours of admission for COVID-19 ICU patients with vitamin D deficiency. The results showed that parenteral administration of high-dose vitamin D-3 did not reduce the need for intubation, length of hospital stay, and inhospital mortality in critically ill COVID-19 patients with vitamin D deficiency.

EUROPEAN JOURNAL OF CLINICAL NUTRITION (2021)

Article Endocrinology & Metabolism

Calcifediol is superior to cholecalciferol in improving vitamin D status in postmenopausal women: a randomized trial

Jose Luis Perez-Castrillon et al.

Summary: This study confirms the efficacy of calcifediol compared to cholecalciferol in raising serum 25-hydroxyvitamin D levels, presenting itself as a faster and more potent option for the treatment of vitamin D deficiency.

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The relationship between 25(OH) vitamin D levels and COVID-19 onset and disease course in Spanish patients

Manuel Diaz-Curiel et al.

Summary: This study aimed to investigate the relationship between vitamin D levels and disease severity in COVID-19 patients, with findings showing that hospitalized patients often had lower levels of 25(OH)D, while male and older patients were more likely to be admitted to the ICU. The study also revealed an independent association between vitamin D levels and ICU admission rates.

JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY (2021)

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Therapeutic and prognostic role of vitamin D for COVID-19 infection: A systematic review and meta-analysis of 43 observational studies

Fausto Petrelli et al.

Summary: Vitamin D plays a protective role by modulating the immune system and systemic inflammatory response, reducing the risk and severity of COVID-19 infection. Patients with deficient vitamin D levels are more likely to be infected with COVID-19, and are more likely to experience severe symptoms and death.

JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY (2021)

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Vitamin D deficiency and severity of pneumonia in Indonesian children

Vicka Oktaria et al.

Summary: The study found that one in every five children hospitalized with pneumonia in Indonesia was vitamin D deficient. Vitamin D status was not significantly associated with the severity of pneumonia in these children, however, factors such as age younger than 6 months, low birth weight, and poor nutritional status on admission were associated with prolonged hospitalization and risk of hypoxemia.

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Redox imbalance links COVID-19 and myalgic encephalomyelitis/chronic fatigue syndrome

Bindu D. Paul et al.

Summary: The review summarizes evidence of biological abnormalities in patients with acute COVID-19 and ME/CFS, including redox imbalance, systemic inflammation, neuroinflammation, impaired ATP generation, and general hypometabolism. Although these phenomena have not been extensively studied in individuals with long COVID-19, understanding these abnormalities may lead to the development of novel therapeutics.

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Investigating the Relationship between Vitamin D and Persistent Symptoms Following SARS-CoV-2 Infection

Liam Townsend et al.

Summary: A study investigated the relationship between vitamin D and persistent fatigue and reduced exercise tolerance following COVID-19, but found no association between the two.

NUTRIENTS (2021)

Article Nutrition & Dietetics

Calcifediol Treatment and Hospital Mortality Due to COVID-19: A Cohort Study

Juan F. Alcala-Diaz et al.

Summary: A study in five hospitals in the South of Spain found that COVID-19 patients who received oral calcifediol treatment had significantly lower in-hospital mortality during the first 30 days compared to those who did not receive the treatment.

NUTRIENTS (2021)

Article Nutrition & Dietetics

Effects of a 2-Week 5000 IU versus 1000 IU Vitamin D3 Supplementation on Recovery of Symptoms in Patients with Mild to Moderate Covid-19: A Randomized Clinical Trial

Shaun Sabico et al.

Summary: The study demonstrated that daily supplementation of 5000 IU vitamin D3 for two weeks significantly increased serum 25(OH)D levels. Additionally, the 5000 IU group had a shorter recovery time for cough and loss of taste compared to the 1000 IU group.

NUTRIENTS (2021)

Article Multidisciplinary Sciences

An observational and Mendelian randomisation study on vitamin D and COVID-19 risk in UK Biobank

Xue Li et al.

Summary: While no significant association between vitamin D levels and COVID-19 infection risk was found, a strong inverse relationship was observed between ambient UVB radiation and COVID-19 hospitalization and death rates. Additionally, genetically-predicted vitamin D levels showed a greater protective effect in stronger ambient UVB radiation. Further studies are needed to confirm the potential benefits of vitamin D supplementation in protecting against severe COVID-19 outcomes.

SCIENTIFIC REPORTS (2021)

Article Multidisciplinary Sciences

被撤回的出版物: Impact of daily high dose oral vitamin D therapy on the inflammatory markers in patients with COVID 19 disease (Retracted article. See vol. 12, 2022)

Maheshwar Lakkireddy et al.

Summary: This study investigated the impact of Pulse D therapy on reducing inflammatory markers of COVID-19. The results showed a significant reduction in inflammatory markers in the VD group after receiving Pulse D therapy, while the reduction in the NVD group was not significant.

SCIENTIFIC REPORTS (2021)

Article Multidisciplinary Sciences

Solar UV-B/A radiation is highly effective in inactivating SARS-CoV-2

Fabrizio Nicastro et al.

Summary: The study shows that UV-B/A photons have a strong virucidal effect and can quickly inactivate the Covid-19 virus. Solar radiation intensity plays a significant role in virus transmission, helping to plan epidemic control strategies.

SCIENTIFIC REPORTS (2021)

Article Orthopedics

Vitamin D inhibits TNF-α induced apoptosis of human nucleus pulposus cells through regulation of NF-kB signaling pathway

Cun Zhang et al.

Summary: Vitamin D can attenuate TNF-alpha-induced apoptosis of human nucleus pulposus cells through interfering with the NF-kappa B pathway, as observed in gene expression data analysis.

JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH (2021)

Review Endocrinology & Metabolism

Vitamin D: Bolus Is Bogus-A Narrative Review

Richard B. Mazess et al.

Summary: This review summarizes the impact of high bolus doses versus daily doses of vitamin D on levels of 25(OH)D and 1,25(OH)(2)D, as well as on factors blocking vitamin D functions. It also discusses the role of bolus versus daily dosing of vitamin D in various health outcomes, highlighting potential biases in health recommendations based on different dosing trials.

JBMR PLUS (2021)

Review Biochemistry & Molecular Biology

Vitamin D and COVID-19: An Overview of Recent Evidence

Drishti Ghelani et al.

Summary: The role of vitamin D in modulating the immune system in the context of COVID-19 has been discussed in research, with evidence suggesting that low levels of vitamin D may lead to poor prognosis but supplementation can help mitigate these effects, although its benefits remain controversial.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2021)

Article Endocrinology & Metabolism

The Effects of Vitamin D Supplementation and 25-Hydroxyvitamin D Levels on the Risk of Myocardial Infarction and Mortality

Prakash Acharya et al.

Summary: In this study, treatment with vitamin D in patients with vitamin D deficiency and no prior history of myocardial infarction significantly reduced the risk of myocardial infarction and all-cause mortality. Maintaining vitamin D levels above 30 ng/mL was associated with a more significant reduction in the risk of myocardial infarction.

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Article Geriatrics & Gerontology

Severe vitamin D deficiency is not related to SARS-CoV-2 infection but may increase mortality risk in hospitalized adults: a retrospective case-control study in an Arab Gulf country

Abdullah M. Alguwaihes et al.

Summary: This retrospective case-control study found that vitamin D deficiency is not associated with SARS-CoV-2 infection in hospitalized patients, but severe deficiency may increase the risk of mortality. More clinical trials are needed to determine if correcting vitamin D status can provide protective effects against severe outcomes of COVID-19.

AGING CLINICAL AND EXPERIMENTAL RESEARCH (2021)

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Relationship Between Serum Vitamin D Levels and Acute Pneumonia in Children Aged 1-59 Months in Nigeria

Festus Dele Akeredolu et al.

Summary: This study in Nigeria found that low serum vitamin D levels were associated with an increased risk of acute pneumonia in children under 5 years old. Higher serum 25(OH)D levels were linked to a decreased odds of acute pneumonia after adjusting for confounders.

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The Effects of Vitamin D Supplementation and 25-Hydroxyvitamin D Levels on the Risk of Myocardial Infarction and Mortality

Prakash Acharya et al.

Summary: For patients with Vitamin D deficiency and no prior history of myocardial infarction, treatment to reach 25-hydroxyvitamin D levels above 20 ng/mL and 30 ng/mL is associated with significantly lower risk of all-cause mortality. The lower risk of myocardial infarction is only observed in individuals maintaining 25-OH levels above or equal to 30 ng/mL.

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Can a Combination of AT1R Antagonist and Vitamin D Treat the Lung Complication of COVID-19?

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Vitamin D and survival in COVID-19 patients: A quasi-experimental study

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