Heartland Assays



Heaney RP, Vieth R, Hollis BW, 2011

Vitamin D efficacy and safety., Arch Intern Med 171: 266
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Hayashi K, Yasuda K, Sugimoto H, et al. 2010

Three-step hydroxylation of vitamin D3 by a genetically engineered CYP105A1: enzymes and catalysis, FEBS J 277: 3999-4009
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Hollis BW, 2010

Assessment and interpretation of circulating 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D in the clinical environment., Endocrinol Metab Clin North Am 39: 271-86
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Hollis BW, 2008

Assessment of vitamin D status and definition of a normal circulating range of 25-hydroxyvitamin D., Curr Opin Endocrinol Diabetes Obes 15: 489-94
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Heaney RP, Armas LA, Shary JR, et al. 2008

25-Hydroxylation of vitamin D3: relation to circulating vitamin D3 under various input conditions., Am J Clin Nutr 87: 1738-42
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Zimmerman DR, Reinhardt TA, Kremer R, et al. 2001

Calcitroic acid is a major catabolic metabolite in the metabolism of 1 alpha-dihydroxyvitamin D(2)., Arch Biochem Biophys 392: 14-22
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Rao DS, Siu-Caldera ML, Uskokovic MR, et al. 1999

Physiological significance of C-28 hydroxylation in the metabolism of 1alpha,25-dihydroxyvitamin D(2), Arch Biochem Biophys 368: 319-28
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Reinhardt TA, Koszewski NJ, Omdahl J, Horst RL, 1999

1,25-Dihydroxyvitamin D(3) and 9-cis-retinoids are synergistic regulators of 24-hydroxylase activity in the rat and 1, 25-dihydroxyvitamin D(3) alters retinoic acid metabolism in vivo., Arch Biochem Biophys 368: 244-8
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Matsuoka LY, Wortsman J, Haddad JG, Hollis BW, 1992

Elevation of blood vitamin D2 levels does not impede the release of vitamin D3 from the skin., Metabolism 41: 1257-60
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Reinhardt TA, Horst RL, 1989

Self-induction of 1,25-dihydroxyvitamin D3 metabolism limits receptor occupancy and target tissue responsiveness., J Biol Chem 264: 15917-21
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Napoli JL, Horst RL, 1983

C(24)- and C(23)-oxidation, converging pathways of intestinal 1,25-dihydroxyvitamin D3 metabolism: identification of 24-keto-1,23,25-trihydroxyvitamin D3., Biochemistry 22: 5848-53
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Horst RL, Reinhardt TA, Napoli JL, 1982

23-keto-25-hydroxyvitamin D3 and 23-keto-1,25-dihydroxyvitamin D3: two new vitamin D3 metabolites with high affinity for the 1,25-dihydroxyvitamin D3 receptor., Biochem Biophys Res Commun 107: 1319-25
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Napoli JL, Pramanik BC, Partridge JJ, et al. 1982

23S,25-dihydroxyvitamin D3 as a circulating metabolite of vitamin D3. Its role in 25-hydroxyvitamin D3-26,23-lactone biosynthesis., J Biol Chem 257: 9634-9
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Napoli JL, Horst RL, 1982

23, 25, 26-trihydroxycholecalciferol. A 25-hydroxycholecalciferol-26,23-lactone precursor., Biochem J 206: 173-6
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Horst RL, Pramanik BC, Reinhardt TA, et al. 1982

Binding properties of 23S,25-dihydroxyvitamin D3: an in vivo metabolite of vitamin D3., Biochem Biophys Res Commun 106: 1006-11
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Reinhardt TA, Napoli JL, Beitz DC, et al. 1982

1,24,25-Trihydroxyvitamin D3: a circulating metabolite in vitamin D2-treated bovine., Arch Biochem Biophys 213: 163-8
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Napoli JL, Okita RT, Masters BS, Horst RL, 1981

Identification of 25,26-dihydroxyvitamin D3 as a rat renal 25-hydroxyvitamin D3 metabolite., Biochemistry 20: 5865-71
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