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

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

(2021) Igor H. Murai et al.   JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION

A pilot-randomized, double-blind crossover trial to evaluate the pharmacokinetics of orally administered 25-hydroxyvitamin D3 and vitamin D3 in healthy adults with differing BMI and in adults with intestinal malabsorption

(2021) Nipith Charoenngam et al.   AMERICAN JOURNAL OF CLINICAL NUTRITION

Reduction in circulating vitamin D binding protein in patients with multiple sclerosis

(2021) Zhila Maghbooli et al.   BMC Neurology

Calcifediol Treatment and COVID-19–Related Outcomes

(2021) Xavier Nogues et al.   JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM

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

(2021) Juan F. Alcala-Diaz et al.   Nutrients

Procalcitonin in patients with severe coronavirus disease 2019 (COVID-19): a meta-analysis

(2020) Giuseppe Lippi et al.   CLINICA CHIMICA ACTA

Characteristics of and Important Lessons From the Coronavirus Disease 2019 (COVID-19) Outbreak in China

(2020) Zunyou Wu et al.   JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION

Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study

(2020) Nanshan Chen et al.   LANCET

Pathological findings of COVID-19 associated with acute respiratory distress syndrome

(2020) Zhe Xu et al.   Lancet Respiratory Medicine

Rheumatologists’ perspective on coronavirus disease 19 (COVID-19) and potential therapeutic targets

(2020) Durga Prasanna Misra et al.   CLINICAL RHEUMATOLOGY

Comorbidity and its impact on 1590 patients with COVID-19 in China: a nationwide analysis

(2020) Wei-jie Guan et al.   EUROPEAN RESPIRATORY JOURNAL

Neutrophil-to-lymphocyte ratio and lymphocyte-to-C-reactive protein ratio in patients with severe coronavirus disease 2019 (COVID-19): A meta-analysis

(2020) Francisco Alejandro Lagunas-Rangel   JOURNAL OF MEDICAL VIROLOGY

Cholecalciferol or Calcifediol in the Management of Vitamin D Deficiency

(2020) Manuel Sosa Henríquez et al.   Nutrients

Evidence that Vitamin D Supplementation Could Reduce Risk of Influenza and COVID-19 Infections and Deaths

(2020) William B. Grant et al.   Nutrients

Lymphocyte Subset Counts in COVID ‐19 Patients: A Meta‐Analysis

(2020) Wei Huang et al.   CYTOMETRY PART A

Immunologic Effects of Vitamin D on Human Health and Disease

(2020) Nipith Charoenngam et al.   Nutrients

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

(2020) Cédric Annweiler et al.   JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY

“Effect of calcifediol treatment and best available therapy versus best available therapy on intensive care unit admission and mortality among patients hospitalized for COVID-19: A pilot randomized clinical study”

(2020) Marta Entrenas Castillo et al.   JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY

SARS-CoV-2 positivity rates associated with circulating 25-hydroxyvitamin D levels

(2020) Harvey W. Kaufman et al.   PLoS One

Vitamin D sufficiency, a serum 25-hydroxyvitamin D at least 30 ng/mL reduced risk for adverse clinical outcomes in patients with COVID-19 infection

(2020) Zhila Maghbooli et al.   PLoS One

COVID-19 and Neutrophils: The Relationship between Hyperinflammation and Neutrophil Extracellular Traps

(2020) Leandro Borges et al.   MEDIATORS OF INFLAMMATION

Daily oral dosing of vitamin D3 using 5000 TO 50,000 international units a day in long-term hospitalized patients: Insights from a seven year experience

(2019) Patrick J. McCullough et al.   JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY

Hypovitaminosis D: Is It Time to Consider the Use of Calcifediol?

(2019) Roberto Cesareo et al.   Nutrients

Is calcifediol better than cholecalciferol for vitamin D supplementation?

(2018) J. M. Quesada-Gomez et al.   OSTEOPOROSIS INTERNATIONAL

Skeletal and extra-skeletal actions of vitamin D: Current evidence and outstanding questions

(2018) Roger Bouillon et al.   ENDOCRINE REVIEWS

Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and meta-analysis of individual participant data

(2017) Adrian R Martineau et al.   BMJ-British Medical Journal

Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and meta-analysis of individual participant data

(2017) Adrian R Martineau et al.   BMJ-British Medical Journal

Vitamin D 3 and calcidiol are not equipotent

(2016) Cristina Navarro-Valverde et al.   JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY

Serum Concentrations of 1,25-Dihydroxyvitamin D2and 1,25-Dihydroxyvitamin D3in Response to Vitamin D2and Vitamin D3Supplementation

(2013) Rachael M. Biancuzzo et al.   JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM

Vitamin D for Health: A Global Perspective

(2013) Arash Hossein-nezhad et al.   MAYO CLINIC PROCEEDINGS

Oral supplementation with 25(OH)D3versus vitamin D3: Effects on 25(OH)D levels, lower extremity function, blood pressure, and markers of innate immunity

(2011) Heike Annette Bischoff-Ferrari et al.   JOURNAL OF BONE AND MINERAL RESEARCH

Evaluation, Treatment, and Prevention of Vitamin D Deficiency: an Endocrine Society Clinical Practice Guideline

(2011) Michael F. Holick et al.   JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM

Vitamin D and the Immune System: New Perspectives on an Old Theme

(2010) Martin Hewison   ENDOCRINOLOGY AND METABOLISM CLINICS OF NORTH AMERICA