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Associations of Vitamin D Receptor Polymorphism rs1544410 with Adiposity Phenotypes
(
MedCrave
, 2016 , Article)
Background: Vitamin D receptor (VDR) is present on adipocytes, and many studies were performed to investigate the association between polymorphisms in VDR gene with obesity. However, in the Arab Gulf populations, whereas ...
Decreased weight gain and enhanced serum biochemical parameters in rats after vitamin D and Ca supplementation
(
Malaysian Journal of Nutrition
, 2018 , Article)
Introduction: Obese individuals tend to have lower plasma concentrations of calcidiol and higher levels of plasma parathyroid hormone (PTH). Objective of this study was to evaluate the influence of vitamin D and Ca ...
Vitamin D for the Immune System in Cystic Fibrosis (DISC): A double-blind, multicenter, randomized, placebo-controlled clinical trial
(
Oxford University Press
, 2019 , Article)
Background Patients with cystic fibrosis (CF) have increased risk of vitamin D deficiency owing to fat malabsorption and other factors. Vitamin D deficiency has been associated with increased risk of pulmonary exacerbations ...
Serum 25-hydroxyvitamin D concentrations are inversely associated with body adiposity measurements but the association with bone mass is non-linear in postmenopausal women
(
Elsevier
, 2021 , Article)
Vitamin D deficiency has been linked to increased adiposity and decreased bone density. It is not known if vitamin D is linked to adiposity measures and bone mass in postmenopausal Qatar women. We investigated an association ...
The influence of vitamin D supplementation on IGF-1 levels in humans: A systematic review and meta-analysis
(
Elsevier
, 2020 , Article)
© 2019 Elsevier B.V. Background: Inconsistencies exist with regard to influence of vitamin D supplementation on IGF-1 levels. The inconsistencies could be attributed to several factors, such as dosage and duration of ...
Validation of FFQ Against Food Records for Vitamin D in Qatar Population
(
Qatar University Press
, 2020 , Poster)
Background: The measurement of vitamin D nutritional status through dietary assessment is a cost effective method. Food frequency questionnaire (FFQ) is usually validated against food records (FR). There is no vitamin D ...
Serum 25-Hydroxyvitamin D Is Inversely Associated with Monocyte Percentage to HDL Cholesterol Ratio among Young Healthy Adults in Qatar.
(
MDPI
, 2020 , Article)
Low serum 25-hydroxyvitamin D [25(OH)D] is linked to an altered lipid profile. Monocytes play an important role in inflammation and lipid metabolism. Recently, monocyte percentage to HDL-cholesterol ratio (MHR) has emerged ...
Agreement level of vitamin D intake between food frequency questionnaire and 24-h food recall in young Qatari women
(
Emerald
, 2022 , Article)
Purpose – Prevalence of vitamin D insufficiency among young Qatari women is ∼85%. The purpose
of the study was to develop a food frequency questionnaire (FFQ) and to assess the degree of
agreement between food vitamin D ...
25-Hydroxyvitamin D Concentrations and Clostridium difficile Infection: A Meta-Analysis
(
SAGE Publications Inc.
, 2017 , Article)
Background: Well-known risk factors for Clostridium difficile infection (CDI) are exposure to antibiotics and gastric acid suppressants. Recent studies have provided some evidence of an association between hypovitaminosis ...
Reply to "Double-counting of effect sizes and inappropriate exclusion of studies in "The influence of vitamin D supplementation on IGF-1 levels in humans: A systematic review and meta_analysis"
(
Elsevier
, 2021 , Other)
Dear Editor,
We appreciate the comments provided to us in the letter from Amiri et al. We would like to offer some clarifications in response to the comments.
Firstly, the authors claimed that we included the control ...