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Determination of vitamin D₃ and 25-hydroxyvitamin D₃ using liquid chromatography with amperometric detectionDELGADO ZAMARRENO, M. M; SANCHEZ PEREZ, A; MEDINA IGLESIAS, M. C et al.Analytical letters. 1993, Vol 26, Num 12, pp 2565-2573, issn 0003-2719Article

Circulating 25-hydroxyvitamin D levels and hypertension riskYILI WU; SHIRU LI; DONGFENG ZHANG et al.European journal of epidemiology. 2013, Vol 28, Num 7, pp 611-616, issn 0393-2990, 6 p.Article

Identification of 8α,25-dihydroxy-9,10-seco-4,6,10(19)-cholestatrien-3-one as a product of metabolism of 25-hydroxycholecalciferol by liver microsomesTHIERRY-PALMER, M; RICHARDSON, K. A; SCHNOES, H. K et al.Archives of biochemistry and biophysics (Print). 1990, Vol 277, Num 2, pp 277-282, issn 0003-9861, 6 p.Article

25-Hydroxyvitamin D, cholesterol, and ultraviolet irradiationCARBONE, Laura D; ROSENBERG, E. William; DOWDY, John C et al.Metabolism, clinical and experimental. 2008, Vol 57, Num 6, pp 741-748, issn 0026-0495, 8 p.Article

Evidence that vitamin D₃ increases serum 25-hydroxyvitamin D more efficiently than does vitamin D₂TRANG, H. M; COLE, D. E. C; RUBIN, L. A et al.The American journal of clinical nutrition. 1998, Vol 68, Num 4, pp 854-858, issn 0002-9165Conference Paper

Determination of vitamin D status by radioimmunoassay with an ¹²⁵I-labeled tracerHOLLIS, B. W; KAMERUD, J. Q; SELVAAG, S. R et al.Clinical chemistry (Baltimore, Md.). 1993, Vol 39, Num 3, pp 529-533, issn 0009-9147Article

Serum 25-hydroxyvitamin D concentration of free-living subjects consuming olestraJONES, D. Y; MILLER, K. W; KOONSVITSKY, B. P et al.The American journal of clinical nutrition. 1991, Vol 53, Num 5, pp 1281-1287, issn 0002-9165, 7 p.Article

Serum 25-hydroxyvitamin D and colon cancerDUNNIGAN, M. G; HENDERSON, J. B.Lancet (British edition). 1990, Vol 335, Num 8681, pp 111-112, issn 0140-6736, 2 p.Article

Characterization of 19-nor-10-oxo-25-hydroxyvitamin D₃ production by solubilized chick kidney mitochondria and bovine serum albuminTRAN, J. M; HENRY, H. L.Journal of steroid biochemistry. 1989, Vol 33, Num 3, pp 395-403, issn 0022-4731, 9 p.Article

Plasma 25-hydroxyvitamin D concentration in patients with hip fracture in Hong KongLAU, E. M. C; WOO, J; SWAMINATHAN, R et al.Gerontology (Basel). 1989, Vol 35, Num 4, pp 198-204, issn 0304-324X, 7 p.Article

A comparison of biochemical indices of bone turnover in elderly institutionalized and free-living subjectsWOO, J; SWAMINATHAN, R; PANG, C. P et al.Bone and mineral. 1990, Vol 8, Num 1, pp 31-38, issn 0169-6009, 8 p.Article

Evidence of a probable role for 25-hydroxyvitamin D in the regulation of human calcium metabolismBELL, N. H; EPSTEIN, S; SHARY, J et al.Journal of bone and mineral research (Print). 1988, Vol 3, Num 5, pp 489-495, issn 0884-0431Article

Circulating levels of 25-hydroxyvitamin D and human cathelicidin in healthy adultsBHAN, Ishir; CAMARGO, Carlos A; WENGER, Julia et al.Journal of allergy and clinical immunology. 2011, Vol 127, Num 5, pp 1302-1304, issn 0091-6749, 3 p.Article

C-3 epimers can account for a significant proportion of total circulating 25-hydroxyvitamin D in infants, complicating accurate measurement and interpretation of vitamin d statusSINGH, Ravinder J; TAYLOR, Robert L; SATYANARAYANA REDDY, G et al.The Journal of clinical endocrinology and metabolism. 2006, Vol 91, Num 8, pp 3055-3061, issn 0021-972X, 7 p.Article

Contributions of vitamin D intake and seasonal sunlight exposure to plasma 25-hydroxyvitamin D concentration in elderly womenSALAMONE, L. M; DALLAL, G. E; ZANTOS, D et al.The American journal of clinical nutrition. 1994, Vol 59, Num 1, pp 80-86, issn 0002-9165Article

Determination of 25-hydroxycholecalciferol content in egg yolk by HPLCMATTILA, P; PIIRONEN, V; UUSI-RAUVA, E et al.Journal of food composition and analysis (Print). 1993, Vol 6, Num 3, pp 250-255, issn 0889-1575Article

Serum 25-hydroxyvitamin D in early autumn to ensure vitamin D sufficiency in mid-winter in professional football playersGALAN, Fernando; RIBAS, Juan; MASANCHEZ-MARTINEZ, Pilar et al.Clinical nutrition (Edinburgh). 2012, Vol 31, Num 1, pp 132-136, issn 0261-5614, 5 p.Article

Serum 25-hydroxy cholecalciferol in infants and preschool children in the Western region of Saudi Arabia: Etiological factorsBAHIJRI, Suhad M.Saudi medical journal. 2001, Vol 22, Num 11, pp 973-979, issn 0379-5284Article

Purification of 25-hydroxy-cholecalciferol from irradiation of cholesta-5,7-diol by high-speed countercurrent chromatographyQIZHEN DU; TIAN-YOU ZHANG; ITO, Y et al.Journal of liquid chromatography. 1995, Vol 18, Num 1, pp 181-188, issn 0148-3919Article

Relationships between parathyroid hormone, 25-hydroxyvitamin D, and bone mineral density in elderly menMURPHY, S; KEY-TEE KHAW; PRENTICE, A et al.Age and ageing. 1993, Vol 22, Num 3, pp 198-204, issn 0002-0729Article

Serum 25-hydroxyvitamin D : distribution and determinants in the Swiss populationBURNAND, B; SLOUTSKIS, D; GIANOLI, F et al.The American journal of clinical nutrition. 1992, Vol 56, Num 3, pp 537-542, issn 0002-9165Article

Cultured human keratinocytes cannot metabolize vitamin D₃ to 25-hydroxyvitamin D₃MACLAUGHLIN, J. A; CASTONGUAY, M. A; HOLICK, M. F et al.FEBS letters. 1991, Vol 282, Num 2, pp 409-411, issn 0014-5793, 3 p.Article

Relationship Between 25-Hydroxyvitamin D and Cognitive Function in Older Adults: The Health, Aging and Body Composition StudyWILSON, Valerie K; HOUSTON, Denise K; SINK, Kaycee M et al.Journal of the American Geriatrics Society. 2014, Vol 62, Num 4, pp 636-641, issn 0002-8614, 6 p.Article

Associations of serum 25-hydroxyvitamin D with circulating PTH, phosphate and calcium in patients with primary hyperparathyroidismJAYASENA, Channa N; MODI, Manish; PALAZZO, Fausto et al.Clinical endocrinology (Oxford. Print). 2013, Vol 78, Num 6, pp 838-843, issn 0300-0664, 6 p.Article