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Journal of Steroid Biochemistry and Molecular Biology, ISSN 0960-0760, 2011, Volume 126, Issue 3, pp. 72 - 77
► Serum 24,25-dihydroxyvitamin D (24,25VD ) response to vitamin D (VD ) supplement. ► Serum 24,25VD correlated strongly with 25-hydroxyvitamin D (25VD ). ►... 
24,25-Dihydroxyvitamin D | Catabolism | CYP24A1 | Supplementation | Vitamin D | 25-Hydroxyvitamin D | CYTOCHROME-P450 | D METABOLITES | BIOCHEMISTRY & MOLECULAR BIOLOGY | RANDOMIZED-TRIAL | RISK | PLASMA | MULTIPLE-SCLEROSIS | BONE-FORMATION | ENDOCRINOLOGY & METABOLISM | 1,25-DIHYDROXYVITAMIN-D | EXPRESSION | GENOME-WIDE ASSOCIATION
Journal Article
AMERICAN JOURNAL OF CLINICAL NUTRITION, ISSN 0002-9165, 06/2008, Volume 87, Issue 6, pp. 1738 - 1742
Background: Neither the efficiency of the 25-hydroxylation of vitamin D nor the steady state relation between vitamin D-3 and 25-hydroxyvitamin D [25(OH)D] has... 
SUPPLEMENTATION | CHOLECALCIFEROL | POPULATION | OBESITY | NUTRITION & DIETETICS | METABOLISM | HUMAN-SKIN | SERUM 25-HYDROXYVITAMIN-D | ADULTS | HUMAN LIVER | CYP3A4
Journal Article
BONE, ISSN 8756-3282, 02/2014, Volume 59, pp. 14 - 19
Aim: Long-term pharmacokinetics after supplementation with vitamin D-3 or calcifediol (the 25-hydroxyvitamin D-3 metabolite) is not well studied. Additionally,... 
Vitamin D-3 | D SUPPLEMENTATION | PREVENTION | Calcifediol | 25-HYDROXYCHOLECALCIFEROL | TANDEM MASS-SPECTROMETRY | HIP | INTESTINAL-ABSORPTION | Plasma concentrations | WOMEN | BONE LOSS | CALCIUM | ENDOCRINOLOGY & METABOLISM | MINERAL METABOLISM | 25-hydroxyvitamin D-3 | Supplementation | Pharmacokinetics
Journal Article
ENDOCRINOLOGY, ISSN 0013-7227, 06/2012, Volume 153, Issue 6, pp. 2576 - 2587
1,25-dihydroxyvitamin D-3 [1,25(OH)(2)D-3 or calcitriol], the hormonally active vitamin D metabolite, exhibits anticancer actions in models of breast cancer... 
NUDE-MICE | CELLS IN-VIVO | 25-HYDROXYVITAMIN D-3 | GROWTH | CALCIUM | ENDOCRINOLOGY & METABOLISM | PREVENTION | PARATHYROID-HORMONE | RISK | RECEPTOR | EB1089
Journal Article
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, ISSN 0021-972X, 06/2016, Volume 101, Issue 6, pp. 2371 - 2379
Context: Endometriosis is an estrogen-dependent, chronic inflammatory disease. Recent studies have shown that vitamin D (VD) is an effective modulator of the... 
SUPPLEMENTATION | WOMEN | CYTOKINE PRODUCTION | 25-HYDROXYVITAMIN D-3 | CANCER CELLS | GROWTH | ENDOCRINOLOGY & METABOLISM | RECEPTOR | KAPPA-B | STROMAL CELLS | EXPRESSION
Journal Article
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, ISSN 0021-972X, 03/2011, Volume 96, Issue 3, pp. E447 - E452
Background: Current unitage for the calciferols suggests that equimolar quantities of vitamins D-2 (D2) and D-3 (D3) are biologically equivalent. Published... 
BODY-FAT | CHOLECALCIFEROL | WOMEN | SINGLE | ERGOCALCIFEROL | ENDOCRINOLOGY & METABOLISM | 25-HYDROXYVITAMIN D
Journal Article
JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY, ISSN 0960-0760, 03/2019, Volume 187, pp. 130 - 133
The discovery that mutations of the CYP24A1 gene are a cause of idiopathic infantile hypercalcemia (IIH) has revived interest in measuring serum... 
Hypercalcemia | VITAMIN-D | Vitamin D Standardization Program (VDSP) | 25-HYDROXYVITAMIN-D | BIOCHEMISTRY & MOLECULAR BIOLOGY | ENDOCRINOLOGY & METABOLISM | 24,25-Dihydroxyvitamin D | 25-OHD3:24,25(OH)D-3 ratio | DEQAS | National Institute of Standards and Technology (NIST) | 25-Hydroxyvitamin D
Journal Article
CLINICAL BIOCHEMISTRY, ISSN 0009-9120, 02/2013, Volume 46, Issue 3, pp. 190 - 196
With an ever-increasing clinical interest in vitamin D insufficiency, numerous automated immunoassays, protein binding assays, and in-house LC-MS/MS methods... 
C-3 EPIMERIZATION | POTENT SUPPRESSOR | C3-epimer | TANDEM MASS-SPECTROMETRY | HUMAN SERUM | HUMAN KERATINOCYTES | 1-ALPHA,25-DIHYDROXYVITAMIN D-3 | LC-MS | Vitamin D | 1-ALPHA,25-DIHYDROXY-3-EPI-VITAMIN D-3 | 25-HYDROXYVITAMIN D-3 | PARATHYROID-HORMONE SECRETION | MEDICAL LABORATORY TECHNOLOGY | NATURAL METABOLITE | Pediatric
Journal Article
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, ISSN 0021-972X, 03/2013, Volume 98, Issue 3, pp. 973 - 979
Objective: The purpose of this study was to determine 1,25-dihydroxyvitamin D-3 [1,25(OH)(2)D-3] and 1,25-dihydroxyvitamin D-2 [1,25(OH)(2)D-2] levels in... 
UNITED-STATES | 25-HYDROXYVITAMIN D-3-1-ALPHA-HYDROXYLASE | DISEASE | ENDOCRINOLOGY & METABOLISM | D DEFICIENCY | PREVENTION | RISK | HEALTH | ABSORPTION | CANCER | ASSOCIATION
Journal Article
EUROPEAN JOURNAL OF ENDOCRINOLOGY, ISSN 0804-4643, 03/2015, Volume 172, Issue 3, pp. 235 - 241
Objective: The objective was to assess the amount of vitamin D-3 stored in adipose tissue after long-term supplementation with high dose vitamin D-3. Design: A... 
GASTRIC BYPASS | POPULATION | SERUM 25-HYDROXYVITAMIN D | ENDOCRINOLOGY & METABOLISM | D-2 | ADIPOSE-TISSUE
Journal Article
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, ISSN 0021-972X, 08/2014, Volume 99, Issue 8, pp. 2736 - 2744
Context: Despite common use of supplemental vitamin D-2 in clinical practice, the associations of serum vitamin D-2 concentrations with other... 
SUPPLEMENTATION | CHOLECALCIFEROL | SERUM 25-HYDROXYVITAMIN D | ERGOCALCIFEROL | CYP2R1 | ENDOCRINOLOGY & METABOLISM | OSTEOPOROTIC FRACTURES | D-2 | OLDER MEN | D 25-HYDROXYLASE | VITAMIN-D DEFICIENCY
Journal Article
JOURNAL OF CELLULAR PHYSIOLOGY, ISSN 0021-9541, 11/2016, Volume 231, Issue 11, pp. 2517 - 2528
An adequate vitamin D status is essential to optimize muscle strength. However, whether vitamin D directly reduces muscle fiber atrophy or stimulates muscle... 
25-HYDROXYVITAMIN D 25OHD | PHYSIOLOGY | SKELETAL-MUSCLE CELLS | 24R,25-DIHYDROXYVITAMIN D-3 | HUMAN-BONE-CELLS | PHYSICAL PERFORMANCE | GENE-EXPRESSION | 1,25-DIHYDROXYVITAMIN D-3 | VITAMIN-D STATUS | CALCIUM-CONCENTRATION | 1-ALPHA,25-DIHYDROXYVITAMIN D-3 | CELL BIOLOGY
Journal Article
AMERICAN JOURNAL OF CLINICAL NUTRITION, ISSN 0002-9165, 09/2007, Volume 86, Issue 3, pp. 645 - 651
Background: Vitamin D-3 may have therapeutic potential in several diseases, including multiple sclerosis. High doses of vitamin D-3 may be required for... 
ENCEPHALOMYELITIS | 25-hydroxyvitamin D | vitamin D | multiple sclerosis | D SUPPLEMENTATION | RISK | NUTRITION & DIETETICS | SEASONAL FLUCTUATIONS | safety | RESONANCE-IMAGING LESIONS | CALCIUM | 25(OH)D | 1,25-DIHYDROXYVITAMIN D-3 | HEALTH | CONGESTIVE-HEART-FAILURE
Journal Article
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, ISSN 0098-7484, 01/2016, Volume 315, Issue 4, pp. 353 - 361
IMPORTANCE Observational studies have suggested that increased dietary vitamin D intake during pregnancy may protect against wheezing in the offspring, but the... 
BRONCHIOLITIS | ATOPIC-DERMATITIS | MEDICINE, GENERAL & INTERNAL | BACTERIA | INFANTS | 25-HYDROXYVITAMIN D | D DEFICIENCY | ASTHMA EPIDEMIC | LINING FLUID | BIRTH COHORT | YOUNG-CHILDREN
Journal Article
APPLIED PHYSIOLOGY NUTRITION AND METABOLISM, ISSN 1715-5312, 03/2018, Volume 43, Issue 3, pp. 259 - 265
The physiological relevance C-3 epimer of 25-hydroxyvitamin D (3-epi-25(OH)D) is not well understood among youth. The objective of this study was to assess... 
POPULATION | SPORT SCIENCES | PHYSIOLOGY | Daily D Health Study | vitamin D | 25-hydroxyvitamin D3 | ADULTS | RISK | SERUM | C-3 epimer | VITAMIN-D STATUS | TANDEM MASS-SPECTROMETRY | SAMPLE | WOMEN | NUTRITION & DIETETICS | INFANTS
Journal Article
AMERICAN JOURNAL OF PHYSIOLOGY-ENDOCRINOLOGY AND METABOLISM, ISSN 0193-1849, 05/2013, Volume 304, Issue 9, pp. E977 - E989
Journal Article
JOURNAL OF THE AMERICAN COLLEGE OF NUTRITION, ISSN 0731-5724, 06/2009, Volume 28, Issue 3, pp. 252 - 256
Objective: To estimate the amount, type, and tissue distribution of vitamin D in the adult body under typical inputs. Methods: Review and reanalysis of... 
CALCIUM SUPPLEMENTATION | NUTRITION & DIETETICS | vitamin D-3 | vitamin D storage | 25-hydroxyvitamin D | 25-HYDROXYVITAMIN D-3 | TISSUE | DRIs | vitamin D intoxication
Journal Article
PLOS ONE, ISSN 1932-6203, 10/2017, Volume 12, Issue 10
Background Recommendations for vitamin D supplementation for preterm infants span a wide range of doses. Response to vitamin D supplementation and impact on... 
BIRTH-WEIGHT INFANTS | MULTIDISCIPLINARY SCIENCES | CORD BLOOD | D SUPPLEMENTATION | D DEFICIENCY | 25-HYDROXYVITAMIN D | X-RAY ABSORPTIOMETRY | PREGNANT-WOMEN | D LEVEL | FORMULA-FED INFANTS | HIGH PREVALENCE
Journal Article
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