Jeon SM, Shin EA. Exploring vitamin D metabolism and function in cancer. Exp Mol Med. 2018;50:1–14.

PubMed  Google Scholar 

Wimalawansa SJ. Infections and autoimmunity-The immune system and vitamin D: A systematic review. Nutrients. 2023;15:3842–75.

CAS  PubMed  PubMed Central  Google Scholar 

Wacker M, Holick MF. Vitamin D-effects on skeletal and extra skeletal health and the need for supplementation. Nutrients. 2013;5:111–48.

CAS  PubMed  PubMed Central  Google Scholar 

Gil A, Plaza-Diaz J, Mesa MD. Vitamin D: Classic and novel actions. Ann Nutr Metab. 2018;72:87–95.

CAS  PubMed  Google Scholar 

Aggeletopoulou I, Tsounis EP, Triantos C. Vitamin D and metabolic dysfunction-associated steatotic liver disease (MASLD): Novel mechanistic insights. Int J Mol Sci. 2024;25:4901–22.

CAS  PubMed  PubMed Central  Google Scholar 

Holick MF. Vitamin D deficiency. New Engl J Med. 2007;357:266–81.

CAS  PubMed  Google Scholar 

Holick MF. The vitamin D deficiency pandemic: Approaches for diagnosis, treatment and prevention. Rev Endocr Metab Dis. 2017;18:153–65.

CAS  Google Scholar 

Jones KS, Assar S, Prentice A, Schoenmakers I. Vitamin D expenditure is not altered in pregnancy and lactation despite changes in vitamin D metabolite concentrations. Sci Rep. 2016;6:26795.

CAS  PubMed  PubMed Central  Google Scholar 

Datta P, Philipsen PA, Olsen P, Bogh MK, Johansen P, Schmedes AV, Morling N, Wulf HC. The half-life of 25(OH)D after UVB exposure depends on gender and vitamin D receptor polymorphism but mainly on the start level. Photoch Photobio Sci. 2017;16:985–95.

CAS  Google Scholar 

Tai SSC, Bedner M, Phinney KW. Development of a candidate reference measurement procedure for the determination of 25-Hydroxyvitamin D3 and 25-Hydroxyvitamin D2 in human serum using isotope-dilution liquid chromatography-tandem mass spectrometry. Anal Chem. 2010;82:1942–8.

CAS  PubMed  PubMed Central  Google Scholar 

Wang D, Yu S, Zhang Q, Cheng Q, Xie S, Zhang Y, Guo X, Zou Y, Yin Y, Yu J, Li H, Xia L, Qiu L, Xia W. A robust method for simultaneous measurement of serum 25(OH)D, 1,25(OH)2D, and 24,25(OH)2D by liquid chromatography-tandem mass spectrometry with efficient separation of 3-epi analogs, 23R,25(OH)2D3, and 4β,25(OH)2D3. J Mass Spectrom. 2022;57:e4792.

CAS  PubMed  Google Scholar 

Gallagher JC, Rosen CJ. Vitamin D: 100 years of discoveries, yet controversy continues. Lancet Diabetes Endo. 2023;11:362–74.

CAS  Google Scholar 

Herrmann M. Assessing vitamin D metabolism - four decades of experience. Clin Chem Lab Med. 2023;61:880–94.

CAS  PubMed  Google Scholar 

Yin S, Yang Y, Wu L, Li YX, Sun CJ. Recent advances in sample preparation and analysis methods for vitamin D and its analogues in different matrices. TrAC-Trend Anal Chem. 2019;110:204–20.

CAS  Google Scholar 

Giustina A, Bilezikian JP, Adler RA, Banfi G, Bikle DD, Binkley NC, Bollerslev J, Bouillon R, Brandi ML, Casanueva FF, di Filippo L, Donini LM, Ebeling PR, Fuleihan GE, Fassio A, Frara S, Jones G, Marcocci C, Martineau AR, Minisola S, Napoli N, Procopio M, Rizzoli R, Schafer AL, Sempos CT, Ulivieri FM, Virtanen JK. Consensus statement on vitamin D status assessment and supplementation: Whys, whens, and hows. Endoer Rev. 2024;45:625–54.

Google Scholar 

Atef SH. Vitamin D assays in clinical laboratory: Past, present and future challenges. J Steroid Biochem. 2018;175:136–7.

CAS  Google Scholar 

Heijboer AC, Blankenstein MA, Kema IP, Buijs MM. Accuracy of 6 routine 25-hydroxyvitamin D assays: Influence of vitamin D binding protein concentration. Clin Chem. 2012;58:543–8.

CAS  PubMed  Google Scholar 

Zelzer S, Meinitzer A, Enko D, Simstich S, Le Goff C, Cavalier E, Herrmann M, Goessler W. Simultaneous determination of 24,25- and 25,26-dihydroxyvitamin D3 in serum samples with liquid-chromatography mass spectrometry – A useful tool for the assessment of vitamin D metabolism. J Chromatogr B. 2020. https://doi.org/10.1016/j.jchromb.2020.122394.

Google Scholar 

Farrell C, Soldo J, McWhinney B, Bandodkar S, Herrmann M. Impact of assay design on test performance: lessons learned from 25-hydroxyvitamin D. Clin Chem Lab Med. 2014;52:1579–87.

CAS  PubMed  Google Scholar 

Wise SA, Camara JE, Sempos CT, Lukas P, Le Goff C, Peeters S, Burdette CQ, Nalin F, Hahm G, Durazo-Arvizu RA, Kuszak AJ, Merkel J, Cavalier É. Vitamin D standardization program (VDSP) intralaboratory study for the assessment of 25-hydroxyvitamin D assay variability and bias. J Steroid Biochem. 2021;212:105917.

CAS  Google Scholar 

Martineau AR, Thummel KE, Wang Z, Jolliffe DA, Boucher BJ, Griffin SJ, Forouhi NG, Hitman GA. Differential effects of oral boluses of vitamin D2vs vitamin D3 on vitamin D metabolism: A randomized controlled trial. J Clin Endocr Metab. 2019;104:5831–9.

PubMed  PubMed Central  Google Scholar 

Jones KS, Assar S, Harnpanich D, Bouillon R, Lambrechts D, Prentice A, Schoenmakers I. 25(OH)D2 half-life is shorter than 25(OH)D3 half-life and is influenced by DBP concentration and genotype. J Clin Endocr Metab. 2014;99:3373–81.

CAS  PubMed  PubMed Central  Google Scholar 

Christakos S, Dhawan P, Verstuyf A, Verlinden L, Carmeliet G. Vitamin D: Metabolism, molecular mechanism of action, and pleiotropic effects. Physiol Rev. 2016;96:365–408.

CAS  PubMed  Google Scholar 

Bikle DD. Vitamin D metabolism, mechanism of action, and clinical applications. Chem Biol. 2014;21:319–29.

CAS  PubMed  PubMed Central  Google Scholar 

Clarke NJ, Zhang YN, Reitz RE. A novel mass spectrometry-based assay for the accurate measurement of thyroglobulin from patient samples containing antithyroglobulin autoantibodies. J Invest Med. 2012;60:1157–63.

CAS  Google Scholar 

Adamec J, Jannasch A, Huang JJ, Hohman E, Fleet JC, Peacock M, Ferruzzi MG, Martin B, Weaver CM. Development and optimization of an LC-MS/MS-based method for simultaneous quantification of vitamin D2, vitamin D3, 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3. J Sep Sci. 2011;34:11–20.

CAS  PubMed  Google Scholar 

Pilarová V, Socas-Rodríguez B, Nováková L, Essén S, Holm C, Turner C, Sandahl M. Analysis of vitamin D and its metabolites in biological samples - Part I: Optimization and comparison of UHPSFC - MS/MS and UHPLC - MS/MS methods. J Chromatogr B. 2024;1237: 124087.

Google Scholar 

Castillo-Peinado LS, Calderón-Santiago M, Priego-Capote F. Lyophilization as pre-processing for sample storage in the determination of vitamin D3 and metabolites in serum and plasma. Talanta. 2021;222: 121692.

CAS  PubMed  Google Scholar 

Alexandridou A, Schorr P, Stokes CS, Volmer DA. Analysis of vitamin D metabolic markers by mass spectrometry: Recent progress regarding the “gold standard” method and integration into clinical practice. Mass Spectrom Rev. 2023;42:1647–87.

CAS  PubMed  Google Scholar 

Yang YM, Liu HM, Chen ZZ, Wu TH, Jiang ZY, Tong LL, Tang B. A simple 3D-printed enzyme reactor paper spray mass spectrometry platform for detecting BuChE activity in human serum. Anal Chem. 2019;91:12874–81.

CAS  PubMed  Google Scholar 

Wani AA, Dar AA, Jan I, Sofi KA, Sofi JA, Dar IH. Method validation and simultaneous quantification of eight organochlorines/organophosphates in apple by gas chromatography. J Sci Food Agr. 2019;99:3687–92.

CAS  Google Scholar