25-Hydroxyvitamin D: A Difficult Analyte [PDF]
In their article in the current issue of Clinical Chemistry , Farrell et al. (1) describe the latest in a number of studies (2, 3) highlighting the method-related variability in serum 25-hydroxyvitamin D (25-OHD)2 results. There is common agreement that 25-OHD is a “difficult” analyte.
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Circulating 25-Hydroxyvitamin D and Prostate Cancer Survival [PDF]
Abstract Background: Recent epidemiologic evidence suggests that higher circulating vitamin D does not protect against prostate cancer and, in fact, may increase the risk of developing this malignancy. However, few studies have examined the most clinically relevant outcome, prostate cancer mortality.
Alison M, Mondul +4 more
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Serum 25-hydroxyvitamin D3 levels and vitamin D receptor variants in melanoma patients from the Mediterranean area of Barcelona [PDF]
BACKGROUND: Serum 25-hydroxyvitamin D3 (Vitamin D) insufficiency and single-nucleotide polymorphisms (SNPs) on its receptor, Vitamin D receptor (VDR), have been reported to be involved in melanoma susceptibility in populations mostly from northern ...
Augé Fradera, Josep Maria +12 more
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Cholecalciferol is becoming an increasingly utilized rodenticide in the United States due to changes implemented by the Environmental Protection Agency (EPA) to reduce unintended exposure of wildlife to second-generation anticoagulant rodenticides.
Charlotte Gerhard, Jared A. Jaffey
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Performance evaluation of four 25-hydroxyvitamin D assays to measure 25-hydroxyvitamin D2
The ability of current immunoassays to accurately measure equimolar amounts of 25(OH)D2 and 25(OH)D3 has been recently questioned. This study determined serum 25(OH)D2, 25(OH)D3 and total serum 25(OH)D concentrations in healthy vitamin D2-supplemented subjects by isotope dilution liquid chromatography mass spectrometry (ID-LC-MS/MS); and, evaluated the
Freeman, James +4 more
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25-Hydroxyvitamin D and Severity of Parkinson’s Disease [PDF]
Introduction. A role for vitamin D deficiency in Parkinson’s disease (PD) has recently been proposed. Given the growing body of evidence for the association of vitamin D with several neurodegenerative disorders and unavailability of any published study in the Middle East, the present study is aimed to determine the associations of circulating 25 ...
Ahmad Chitsaz +6 more
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Plasma 25-Hydroxyvitamin D and Progression to Diabetes in Patients at Risk for Diabetes [PDF]
OBJECTIVE To investigate the association between vitamin D status, assessed by plasma 25-hydroxyvitamin D, and risk of incident diabetes. RESEARCH DESIGN AND METHODS Prospective observational study with a mean follow-up of 2.7 years in the Diabetes ...
Anastassios G. Pittas +8 more
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A genetic approach to study the relationship between maternal Vitamin D status and newborn anthropometry measurements: the Vitamin D pregnant mother (VDPM) cohort study [PDF]
Purpose Adverse effects of maternal vitamin D deficiency have been linked to adverse pregnancy outcomes. We investigated the relationship between maternal vitamin D status and newborn anthropometry measurements using a genetic approach and examined the ...
Aji, Arif Sabta +8 more
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Impact of 25-Hydroxyvitamin D on the Prognosis of Acute Ischemic Stroke: Machine Learning Approach
Background and Purpose: Vitamin D is a predictor of poor outcome for cardiovascular disease. We evaluated whether serum 25-hydroxyvitamin D level was associated with poor outcome in patients with acute ischemic stroke (AIS) using machine learning ...
Chulho Kim +10 more
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Objective The objective was to analyze the relationship between serum 25-hydroxy-vitamin D (25(OH)D) level and albuminuiria in middle-aged and older patients with type 2 diabetes of Gansu Province.
Luyan Zhang +4 more
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