Evaluation of 25-hydroxyvitamin D quantification using a commercial HPLC kit method

References

• Lensmeyer GL, Wiebe DA, Binkley N, Drezner MK. HPLC method for 25-hydroxyvitamin D measurement: comparison with contemporary assays. Clin Chem 2006; 52: 1120–6.
   Google Scholar
• Holick MF. Environmental factors that influence the cutaneous production of vitamin D. Am J Clin Nutr 1995; 61: 638S–645S.
   Google Scholar
• Hollis BW. Measuring 25-hydroxyvitamin D in a clinical environment: challenges and needs. Am J Clin Nutr 2008; 88: 507S–510S.
   Google Scholar
• Zerwekh JE. Blood biomarkers of vitamin D status. Am J Clin Nutr 2008; 87:1087S–1091S.
   Google Scholar
• Garland CF, Garland FC. Do sunlight and vitamin D reduce the likelihood of colon cancer? Int J Epidemio 2006; 35: 217–20.
   Google Scholar
• Koutkia P, Lu Z, Chen TC, Holick MF. Treatment of vitamin D deficiency due to Crohn’s disease with tanning bed ultraviolet B radiation. Gastroenterology 2001; 121: 1485–8.
   Google Scholar
• Lindback B, Berlin T, Bjorkhem I. Three commercial kits and one liquid-chromatographic method evaluated for determining 25-hydroxyvitamin D3 in serum. Clin Chem 1987; 33: 1226–7.
   Google Scholar
• Haddad JG, Chyu KJ. Competitive protein-binding radioassay for 25-hydroxycholecalciferol. J Clin Endocrinol Metab 1971; 33: 992–5.
   Google Scholar
• Belsey R, Deluca HF, Potts JT Jr. Competitive binding assay for vitamin D and 25-OH vitamin D. J Clin Endocrinol Metab 1971; 33: 554–7.
   Google Scholar
• Eisman JA, Shepard RM, DeLuca HF. Determination of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 in human plasma using high-pressure liquid chromatography. Anal Biochem 1977; 80: 298–305.
   Google Scholar
• Hollis BW, Napoli JL. Improved radioimmunoassay for vitamin D and its use in assessing vitamin D status. Clin Chem 1985; 31: 1815–9.
   Google Scholar
• Hollis BW. Quantitation of 25-hydroxyvitamin D and 1, 25-dihydroxyvitamin D by radioimmunoassay using radioiodinated tracers. Methods Enzymol 1997; 282: 174–86.
   Google Scholar
• Shimizu M, Gao Y, Aso T, Nakatsu K, Yamada S. Fluorometric assay of 25-hydroxyvitamin D3 and 24R,25-dihydroxyvitamin D3 in plasma. Anal Biochem 1992; 204: 258–64.
   Google Scholar
• Hollis BW, Kamerud JQ, Selvaag SR, Lorenz JD, Napoli JL. Determination of vitamin D status by radioimmunoassay with an 125I-labeled tracer. Clin Chem 1993; 39: 529–33.
   Google Scholar
• Ersfeld DL, Rao DS, Body JJ et al. Analytical and clinical validation of the 25 OH vitamin D assay for the LIAISON automated analyzer. Clin Biochem 2004; 37: 867–74.
   Google Scholar
• Maunsell Z, Wright DJ, Rainbow SJ. Routine isotope-dilution liquid chromatography-tandem mass spectrometry assay for simultaneous measurement of the 25-hydroxy metabolites of vitamins D2 and D3. Clin Chem 2005; 51: 1683–90.
   Google Scholar
• Jacobs ET, Thomson CA, Flatt SW et al. Vitamin D and breast cancer recurrence in the Women’s Healthy Eating and Living (WHEL) Study. Am J Clin Nutr 2011; 93: 108–17.
   Google Scholar
• Carter GD, Carter R, Jones J, Berry J. How accurate are assays for 25-hydroxyvitamin D? Data from the International Vitamin D External Quality Assessment Scheme. Clin Chem 2004; 50: 2195–7.
   Google Scholar
• Carter GD, Carter CR, Gunter E et al. Measurement of vitamin D metabolites: an international perspective on methodology and clinical interpretation. J Steroid Biochem Mol Biol 2004; 89–90 (1–5): 467–71.
   Google Scholar
• Glendenning P, Taranto M, Noble JM et al. Current assays overestimate 25-hydroxyvitamin D3 and underestimate 25-hydroxyvitamin D2 compared with HPLC: need for assayspecific decision limits and metabolite-specific assays. Ann Clin Biochem 2006; 43: 23–30.
   Google Scholar
• Binkley N, Krueger D, Cowgill CS et al. Assay variation confounds the diagnosis of hypovitaminosis D: a call for standardization. J Clin Endocrinol Metab 2004; 89: 3152–7.
   Google Scholar
• Roth HJ, Schmidt-Gayk H, Weber H, Niederau C. Accuracy and clinical implications of seven 25-hydroxyvitamin D methods compared with liquid chromatography-tandem mass spectrometry as a reference. Ann Clin Biochem 2008; 45: 153–9.
   Google Scholar
• Snellman G, Melhus H, Gedeborg R et al. Determining vitamin D status: a comparison between commercially available assays. PLoS One 2010; 5: e11555.
   Google Scholar
• Yetley EA. Assessing the vitamin D status of the US population. Am J Clin Nutr 2008; 88: 558S–564S.
   Google Scholar
• Looker AC, Pfeiffer CM, Lacher DA, Schleicher RL, Picciano MF, Yetley EA. Serum 25-hydroxyvitamin D status of the US population: 1988–1994 compared with 2000–2004. Am J Clin Nutr 2008; 88: 1519–27.
   Google Scholar
• Valina-Toth AL, Lai Z, Yoo W, Abou-Samra A, Gadegbeku CA, Flack JM. Relationship of vitamin D and parathyroid hormone with obesity and body composition in African Americans. Clin Endocrinol (Oxf) 2010; 72: 595–603.
   Google Scholar
• Kamboh MI, Ferrell RE. Ethnic variation in vitamin D-binding protein (GC): a review of isoelectric focusing studies in human populations. Hum Genet 1986; 72: 281–93.
   Google Scholar
• Arnaud J, Constans J. Affinity differences for vitamin D metabolites associated with the genetic isoforms of the human serum carrier protein (DBP). Hum Genet 1993; 92: 183–8.
   Google Scholar
• Norman AW. From vitamin D to hormone D: fundamentals of the vitamin D endocrine system essential for good health. Am J Clin Nutr 2008; 88: 491S–499S.
   Google Scholar
• Wortsman J, Matsuoka LY, Chen TC, Lu Z, Holick MF. Decreased bioavailability of vitamin D in obesity. Am J Clin Nutr 2000; 72: 690–3.
   Google Scholar
• Davis CD. Vitamin D and cancer: current dilemmas and future research needs. Am J Clin Nutr 2008; 88: 565S–569S.
   Google Scholar