The 15-year-old brother had received a total of 3,180,000 units over the previous 2 weeks, was asymptomatic, normocalcemic, and had normal renal function. Their vitamin D levels were well over the toxic lower limit (150 ng/mL) and were 535 ng/mL and 484.9 ng/mL, respectively. The...
Values of 20 nmol/L were considered severe, 20.1 - 37.5 nmol/L moderate, 37.6 - 50 nmol/L mild deficiency, and 25 (OH) vitamin D3 levels higher than 50 nmol/L were considered normal.Results: The results showed 59.6% of students suffered from vitamin D deficiency (14.4% severe, 24.4%...
Furthermore, there is still no consensus on the normal values of vitamin D in a healthy population. These and other problems discussed herein can be a source of inconsistency in the results of research studies. Keywords: vitamin D; metabolites; VDR; determination; LC–MS/MS; genomic effects;...
(OH)D has been used. Since the introduction of a commercial two-step ELISA that measures free 25(OH)D, studies have shown that the calculated values highly overestimate the directly measured levels of free 25(OH)D [13]. As far as we are aware, directly measured free 25(OH)D levels ...
In addition, vitamin D has anti-inflammatory and other properties that play a role in maintaining normal muscle, immune, and nervous system functions. Vitamin D blood testing can be used to check your levels so a deficiency can be corrected. Less commonly, vitamin D testing may be used to ...
On average, patients have insufficient and controls suboptimal S-25(OH)D levels, while both patients and controls have normal S-folate levels. The patients and controls are also similar with respect to weight and body mass index (BMI), although there is a trend towards patients being shorter ...
Vitamin D deficiency is a candidate risk factor for osteoporosis, characterized by decreased bone mineral density (BMD). We performed this two-sample Mendelian randomization (MR) analysis to investigate the causal effect of vitamin D on BMD. We extracted 143 single-nucleotide polymorphisms from a re...
Blood variableMeasured valueWomen with values not in the normal range n (%) Activity coefficient ETK (n = 177) 1.14 ± 0.072 65 (36.7) EGR (n = 177) 1.16 ± 0.11 11 (6.2) α-EAST (n = 177) 1.56 ± 0.21 65 (36.7) Folate (nmol/L) Serum (n = 172) 20.1 ± 6.67 0 Red ...
P values are compared with the control. Arm 1: aerobic-resistance exercise, cognitive training, vitamin D; arm 2: aerobic-resistance exercise, cognitive training, placebo vitamin D; arm 3: aerobic-resistance exercise, sham cognitive training, and vitamin D; arm 4: aerobic-resistance exercise, ...
Based on the inverse relationship between vitamin D and PTH in the regulation of serum calcium, receiver operating characteristic (ROC) analyses were used to determine assay specific serum 25(OH)D cutoff values that distinguished at best between normal and elevated serum iPTH according to the ...