Tag: Vitamin D

Diet, Infectivology, Pneumology

Vitamin #D supplementation to prevent acute respiratory #infections: a systematic review and meta-analysis of aggregate data from randomised controlled trials

A 2017 meta-analysis of data from 25 randomised controlled trials (RCTs) of vitamin D supplementation for the prevention of acute respiratory infections (ARIs) revealed a protective effect of this intervention. We aimed to examine the link between vitamin D supplementation and prevention of ARIs in an updated meta-analysis. Methods For this systematic review and meta-analysis, we searched MEDLINE, Embase, the Cochrane Central Register of Controlled … Continue reading Vitamin #D supplementation to prevent acute respiratory #infections: a systematic review and meta-analysis of aggregate data from randomised controlled trials

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Diet

Effect of Early High-Dose Vitamin #D3 Repletion on Cognitive Outcomes in Critically Ill Adults

Long-term cognitive impairment frequently occurs after critical illness; no treatments are known to improve long-term cognition. Research Question Does a single high-dose (540,000 IU) enteral treatment of vitamin D3 given shortly after hospital admission in vitamin D deficient, critically-ill patients improve long-term global cognition or executive function? Study Design and Methods This study evaluated long-term cognitive outcomes among patients enrolled in a multicenter, blinded, randomized … Continue reading Effect of Early High-Dose Vitamin #D3 Repletion on Cognitive Outcomes in Critically Ill Adults

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Diet, Infectivology

Association of Vitamin #D Levels, Race/Ethnicity, and Clinical Characteristics With #COVID-19 Test Results

Deficient (ie, <20 ng/mL) or insufficient (ie, 20 to <30 ng/mL) 25-hydroxyvitamin D (also known as calcifediol) levels are more common in Black individuals than White individuals and are associated with increased coronavirus disease 2019 (COVID-19) risk. Whether COVID-19 risk is associated with differences in vitamin D levels of 30 ng/mL or greater is not known. Objective To examine whether COVID-19 test results are associated … Continue reading Association of Vitamin #D Levels, Race/Ethnicity, and Clinical Characteristics With #COVID-19 Test Results

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Cardiology, Diet

Effect of Marine #Omega-3 Fatty Acid and Vitamin #D Supplementation on Incident Atrial #Fibrillation

Atrial fibrillation (AF) is the most common heart rhythm disturbance, continues to increase in incidence, and results in significant morbidity and mortality. The marine omega-3 fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), and vitamin D have been reported to have both benefits and risks with respect to incident AF, but large-scale, long-term randomized trial data are lacking. Objective To test the effects of … Continue reading Effect of Marine #Omega-3 Fatty Acid and Vitamin #D Supplementation on Incident Atrial #Fibrillation

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Diet, Infectivology

Circulating Vitamin #D levels status and clinical prognostic indices in #COVID-19 patients

Several immune mechanisms activate in COVID-19 pathogenesis. Usually, coronavirus infection is characterized by dysregulated host immune responses, interleukine-6 increase, hyper-activation of cytotoxic CD8 T lymphocytes. Interestingly, Vitamin D deficiency has been often associated with altered immune responses and infections. In the present study, we evaluated Vitamin D plasma levels in patients affected with different lung involvement during COVID-19 infection. Methods Lymphocyte phenotypes were assessed by … Continue reading Circulating Vitamin #D levels status and clinical prognostic indices in #COVID-19 patients

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Diet, Infectivology

Low vitamin #D status is associated with #coronavirus disease 2019 outcomes: A systematic review and meta-analysis

Observational studies suggest that the risk and clinical prognosis of coronavirus disease 2019 (COVID-19) are related to low vitamin D status; however, the data are inconsistent.. ..A total of 10 articles with 361, 934 participants were selected for meta-analysis. Overall, the pooled OR in the fixed-effect model showed that vitamin D deficiency or insufficiency was associated with an increased risk of COVID-19 (OR = 1.43, 95% CI … Continue reading Low vitamin #D status is associated with #coronavirus disease 2019 outcomes: A systematic review and meta-analysis

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Endocrinology, Gastroenterology

Vitamin #D metabolites and the gut #microbiome in older men

The vitamin D receptor is highly expressed in the gastrointestinal tract where it transacts gene expression. With current limited understanding of the interactions between the gut microbiome and vitamin D, we conduct a cross-sectional analysis of 567 older men quantifying serum vitamin D metabolites using LC-MSMS and defining stool sub-Operational Taxonomic Units from16S ribosomal RNA gene sequencing data. Faith’s Phylogenetic Diversity and non-redundant covariate analyses … Continue reading Vitamin #D metabolites and the gut #microbiome in older men

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Diet, Gerontology

Vitamin #D Insufficiency Reduces Grip Strength, Grip Endurance and Increases Frailty in Aged C57Bl/6J Mice

Low 25-OH serum vitamin D (VitD) is pervasive in older adults and linked to functional decline and progression of frailty. We have previously shown that chronic VitD insufficiency in “middle-aged” mice results in impaired anaerobic exercise capacity, decreased lean mass, and increased adiposity. Here, we examine if VitD insufficiency results in similar deficits and greater frailty progression in old-aged (24 to 28 months of age) … Continue reading Vitamin #D Insufficiency Reduces Grip Strength, Grip Endurance and Increases Frailty in Aged C57Bl/6J Mice

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Diet, Ophthalmology

Effect of Vitamin #D and ω-3 #Fatty Acid Supplementation on Risk of Age-Related #Macular Degeneration An Ancillary Study of the VITAL Randomized Clinical Trial

Observational studies suggest that higher intake or blood levels of vitamin D and marine ω-3 fatty acids may be associated with lower risks of age-related macular degeneration (AMD). However, evidence from randomized trials is limited.. ..In total, 25 871 participants with a mean (SD) age of 67.1 (7.0) years were included in the trial. Of them, 50.6% were women, 71.3% were self-declared non-Hispanic White participants, and … Continue reading Effect of Vitamin #D and ω-3 #Fatty Acid Supplementation on Risk of Age-Related #Macular Degeneration An Ancillary Study of the VITAL Randomized Clinical Trial

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Diet, Infectivology

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

..Based on CDC criteria, among our study patients, 74% had severe COVID-19 infection and 32.8% were vitamin D sufficient. After adjusting for confounding factors, there was a significant association between vitamin D sufficiency and reduction in clinical severity, inpatient mortality serum levels of C-reactive protein (CRP) and an increase in lymphocyte percentage. Only 9.7% of patients older than 40 years who were vitamin D sufficient … Continue reading 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

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Diet, Infectivology

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

To investigate the association between serum 25-hydroxyvitamin D levels and its effect on adverse clinical outcomes, and parameters of immune function and mortality due to a SARS-CoV-2 infection.. ..Based on CDC criteria, among our study patients, 74% had severe COVID-19 infection and 32.8% were vitamin D sufficient. After adjusting for confounding factors, there was a significant association between vitamin D sufficiency and reduction in clinical … Continue reading 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

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Diet, Gastroenterology

Vitamin #D receptor is overexpressed in the duodenum of patients with #irritable bowel syndrome

Irritable bowel syndrome (IBS) is one of the most common functional gastrointestinal disorders and bile acids are thought to be associated with the pathogenesis of IBS. Bile acid receptors are expressed on intestinal epithelial cells. However, no study has assessed bile acid receptor proteins in IBS. Therefore, we examined the intestinal mucosal expression of bile acid receptors in patients with IBS.. Intestinal biopsies were performed … Continue reading Vitamin #D receptor is overexpressed in the duodenum of patients with #irritable bowel syndrome

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