Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"25-hydroxyvitamin D"”.
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Comparison on metabolic markers and hormone level according to serum 25-hydroxyvitamin D level
… markers and hormone levels according to serum 25-hydroxyvitamin D level. METHODS: We investigated 3,399 women who had periodic health examination in Ajou university hospital from March 1st, 1997 to February 28th, 2005. Height, Weight, Waist circumference, and blood pressure were measured. …
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A review of serum 25-hydroxyvitamin D levels in Alaska native and non-natives in southwest Alaska
… darker skin pigmentation increase risk for Serum 25-hydroxyvitamin D [25(OH)D] deficiency and insufficiency. <br /><br /> <em>Purposes of the Study:</em> To evaluate the incidence of 25(OH)D insufficiency and deficiency in Southwest Alaska, differences in deficiency rates between Alaska Natives …
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Development of a non-invasive clinical screening tool to asses 25-hydroxyvitamin D (25(OH)D) serum levels in long-term care older adults
… for the identification of hypovitaminosis D, 25-hydroxyvitamin D [25(OH)D] serum levels <30 ng/mL, in older adults living in long-term care communities. The primary hypothesis of this study was that hypovitaminosis D could accurately be predicted in long-term care older adults through a series …
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Purification of Vitamin D Binding Protein and Its Role in the Uptake of 25-Hydroxyvitamin D by Cultured Kidney Cells (Mdck Cells, Tissue Culture, Dbp)
… its use in studies investigating the uptake of 25(OH)D(,3) by kidney cell lines. DBP was isolated from pig plasma in three steps: chromatography on DEAE cellulose and DEAE Sephadex, followed by chromatofocusing. The procedure represents a shorter purification scheme than those previously …
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Skin Disease and Vitamin D
… aim was to investigate the association between 25-hydroxyvitamin D and cutaneous lupus erythematosus, and the effect of vitamin D on psoriasis. Two additional studies about the population prevalence of cutaneous lupus and the cardiovascular risk of psoriasis were undertaken. Methods Patients …
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Effects of Vitamin D on Expression of Toll-like Receptors of Monocytes from Patients with Behcet's Disease
… expression in BD. MATERIALS AND METHODS: Serum 25-hydroxyvitamin D levels were measured in the patients with BD, psoriasis and healthy controls. The expression of CD16, TLR 2 and TLR 4 on blood monocytes was detected by flow cytometric analysis and semiquantitative RT-PCR among those groups. …
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The Impact Of Continuous Prenatal And Early Postpartum Maternal Vitamin D Supplementation On The Vitamin D Status Of Exclusively Breastfed Infants
… and infant participants. Serum levels of 25-hydroxyvitamin D were measured in maternal participants at enrollment and in both maternal and infant participants at delivery and after 4-6 weeks of lactation. Maternal plasma TNF-alpha, IL-6, and IL-10 were measured at enrollment, delivery and …
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Changes of parathyroid hormone and vitamin D metabolites according to glomerular filtration rate in chronic kidney disease patients
… creatinine, calcium, phosphate, intact PTH, 25-hydroxyvitamin D (25(OH)D3) and 1,25-dihydroxyvitamin D (1,25(OH)2D3) between May 2006 and April 2007. RESULTS: There were 32 patients with CKD stage 3 (30-59 mL/min/1.73 m2), 37 with CKD stage 4 (15-29 mL/min/1.73 m2) and 44 with CKD stage 5 …
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Calcium and Phosphorus Metabolism in Jersey and Holstein Cows During Early Lactation
… postulated that dairy producers could administer 25-hydroxyvitamin D₃ (25-OH) in the prepartum period to prevent hypocalcemia. Twenty-seven multiparous Jersey cows were randomly assigned to receive an oral bolus containing corn starch (control, CON) or corn starch plus 15 mg of 25-hydroxyvitamin …
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Vitamin D status and longitudinal lung function decline in the Lung Health Study
… data to test the hypothesis that baseline plasma 25-hydroxyvitamin D [25(OH)D] is lower in subjects with more rapid lung function decline, compared to those with slow lung function decline. We conducted a nested, matched case-control study in the Lung Health Study 3 cohort. Cases and controls were …
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Calcium metabolism and breast cancer risk
… cohort comprising 10,902 women. Serum calcium, 25-hydroxyvitamin D (25OHD) and PTH-levels were furthermore examined in relation to breast cancer risk in a nested case-control study comprising 764 breast cancer cases within the Malmö Diet and Cancer Study. Serum calcium levels were positively …
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Natural Genetic Variation Affecting Calcium Homeostasis
… in serum Ca and increases renal conversion of 25 hydroxyvitamin D (25(OH)D) to 1,25 dihydroxyvitamin D (1,25(OH)2D). 1,25(OH)2D acts through the vitamin D receptor (VDR) to increase intestinal Ca absorption, renal Ca reabsorption and skeletal Ca resorption. Efficient intestinal Ca absorption, …
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Nonlinear models with measurement error: Application to vitamin D
… A biomarker for vitamin D status is a person's 25-hydroxyvitamin D (or 25(OH)D) serum level. From a practical viewpoint, we cannot make public health recommendations using 25(OH)D levels. Ideally we want to be able to make recommendations for intakes of vitamin D. In our work, we model the …
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Vitamin D status and requirements during pregnancy and lactation
… data and appropriate reference ranges for serum 25-hydroxyvitamin D (25OHD) during pregnancy, lactation and infancy, including in umbilical cord blood. This thesis described concentrations of total 25OHD and individual metabolites including 25OHD3, 25OHD2, and 3-epi-25OHD3 at 15 weeks’ gestation …
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Evaluation of an Updated Version of the Food Frequency and Sun Exposure Questionnaire for Assessing Vitamin D Status in Active Population
… triads which compare vitamin D intake with serum 25-hydroxyvitamin D (25(OH)D and vitamin D intake from food records in athletes. METHODS: Forty-one participants completed a semiquantitative FFLQ, 3-day or 4-day food records, and had blood drawn for analysis of serum 25(OH)D. The FFLQ evaluated …
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Role of Vitamin D receptor and vitamin D binding protein restriction fragment length polymorphisms in determining dose response to vitamin D: a randomized double blind placebo controlled trial
Serum 25-hydroxyvitamin D (25OHD) is considered to be the best biomarker of vitamin D status. Besides the dietary intake of vitamin D and exposure to sunlight, there are other factors that affect serum 25OHD such as weight, race, sex, binding protein and the effect of vitamin D receptor (VDR) and …
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Vitamin D and health during pregnancy
… of total vitamin D intake and achieved serum 25-hydroxyvitamin D (s25(OH)D), an intake of 30 µg/d was considered sufficient to maintain s25(OH)D concentrations >50 nmol/L in 97.5% of women during pregnancy and prevent neonatal vitamin D deficiency. Special consideration was given to the …
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Assessment of Micronutrient Status in Pregnant Malawian Women Before and After Treatment for Moderate Malnutrition
… <p><strong>Methods</strong>: Serum retinol, 25-hydroxyvitamin D, ferritin, vitamin B<sub>12</sub>, folate, zinc, albumin and C-reactive protein concentrations were measured in pregnant women with MUAC >20.6 cm and</p> <p><strong>Results</strong>: Baseline micronutrient concentrations …
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