1
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Castillo-Peinado LDLS, Calderón-Santiago M, Sánchez-Cano RL, Quesada-Gómez JM, Bouillon R, Priego-Capote F. Determination of vitamin D 3 conjugated metabolites: a complementary view on hydroxylated metabolites. Analyst 2023; 148:654-664. [PMID: 36625245 DOI: 10.1039/d2an01982e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Experts typically define vitamin D deficiency levels by the determination of a circulating 25-hydroxyvitamin D3-calcifediol prohormone. A large part of the population is characterized by deficient vitamin D levels (calcifediol < 20 ng mL-1) despite individuals not being affected by any disorder. Cholecalciferol (vitamin D3) and/or calcifediol supplementation is a common practice for vitamin D-deficient individuals as recommended by international scientific societies and official agencies. In the last few years, several studies have reported the presence of conjugated vitamin D3 metabolites, mainly glucuronidation and sulfation derivatives, although simultaneous quantitative measurements involving phase I and II vitamin D metabolites have not been carried out. A quantitative method based on tandem mass spectrometry detection is proposed here for the combined determination of phase I and phase II vitamin D3 metabolites in human serum. As phase I and phase II metabolites are preferentially ionized in different modes, a switching polarity mode was adopted to determine both groups of compounds in serum at high sensitivity levels (pg mL-1). The validation of this proposal was successfully accomplished by following the Center for Drug Evaluation and Research (CDER) guidelines. Its applicability was tested in a cohort of volunteers with mostly deficient baseline levels. Considering the sulfated form of calcifediol, the sum of its concentrations showed sufficient baseline vitamin D levels in all individuals, suggesting that this could be a novel strategy for vitamin D deficiency definition. Therefore, phase II metabolites are proposed to be included when evaluating the vitamin D status since they provide more information about the overall status of the vitamin D endocrine system. Nevertheless, further studies are required to confirm the biological activity of these conjugated metabolites and the suitability of this strategy for the description of vitamin D deficiency.
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Affiliation(s)
- Laura de Los Santos Castillo-Peinado
- Department of Analytical Chemistry, Annex Marie Curie Building, Campus of Rabanales, University of Córdoba, Córdoba, Spain. .,Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía University Hospital, University of Córdoba, Córdoba, Spain.,Nanochemistry University Institute (IUNAN), Campus of Rabanales, University of Córdoba, Córdoba, Spain.,CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Spain
| | - Mónica Calderón-Santiago
- Department of Analytical Chemistry, Annex Marie Curie Building, Campus of Rabanales, University of Córdoba, Córdoba, Spain. .,Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía University Hospital, University of Córdoba, Córdoba, Spain.,Nanochemistry University Institute (IUNAN), Campus of Rabanales, University of Córdoba, Córdoba, Spain.,CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Spain
| | - Rafael Luis Sánchez-Cano
- Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía University Hospital, University of Córdoba, Córdoba, Spain.,Occupational Health Unit, Reina Sofía University Hospital, Córdoba, Spain
| | - Jose Manuel Quesada-Gómez
- Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía University Hospital, University of Córdoba, Córdoba, Spain.,CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Spain
| | - Roger Bouillon
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Belgium
| | - Feliciano Priego-Capote
- Department of Analytical Chemistry, Annex Marie Curie Building, Campus of Rabanales, University of Córdoba, Córdoba, Spain. .,Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía University Hospital, University of Córdoba, Córdoba, Spain.,Nanochemistry University Institute (IUNAN), Campus of Rabanales, University of Córdoba, Córdoba, Spain.,CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Spain
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2
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Liu X, Zhou Y, Zou X. Correlation between Serum 25-Hydroxyvitamin D Levels and Gastric Cancer: A Systematic Review and Meta-Analysis. Curr Oncol 2022; 29:8390-8400. [PMID: 36354721 PMCID: PMC9689382 DOI: 10.3390/curroncol29110661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/29/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
The purpose of this meta-analysis was to evaluate the relationship between serum 25-hydroxyvitamin D[25(OH)D] levels and gastric cancer. PubMed, Embase, Cochrane Library, Web of Science, The China Academic Journals full-text database, Wanfang Database of Chinese Academic Journals, VIP Chinese Science and Technology Periodicals database, and Chinese Biomedical Literature database were systematically searched. Case-control studies on the correlation between serum 25-hydroxyvitamin D levels and gastric cancer were retrieved, and the data extracted were analyzed. The results of 9 case-control studies containing 671 patients showed that serum 25(OH)D levels in the gastric cancer group were lower than those in the control group (weighted mean difference (WMD) = -8.90, 95% confidence interval (CI): -11.5, -6.32, p < 0.01); the risk of vitamin D deficiency in the gastric cancer group was higher than that in the control group (Odds ratio = 3.09, 95% CI: 1.96, 4.87, p < 0.01). The serum 25(OH)D levels in patients with well and moderately differentiated gastric cancer were higher than those in patients with poorly differentiated gastric cancer (WMD = -3.58, 95% CI: -6.41, -0.74, p = 0.01). Thus, low levels of vitamin D may increase the risk of gastric cancer. Systematic review registration: PROSPERO CRD42022327942.
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Affiliation(s)
- Xing Liu
- Correspondence: ; Tel.: +86-24-87970052
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3
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Haris A, Lam YPY, Wootton CA, Theisen A, Marzullo BP, Schorr P, Volmer DA, O’Connor PB. Differentiation of Dihydroxylated Vitamin D 3 Isomers Using Tandem Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:1022-1030. [PMID: 35561028 PMCID: PMC9164238 DOI: 10.1021/jasms.2c00085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
Vitamin D compounds are a group of secosteroids derived from cholesterol that are vital for maintaining bone health in humans. Recent studies have shown extraskeletal effects of vitamin D, involving vitamin D metabolites such as the dihydroxylated vitamin D3 compounds 1,25-dihydroxyvitamin D3 and 24,25-dihydroxyvitamin D3. Differentiation and characterization of these isomers by mass spectrometry can be challenging due to the zero-mass difference and minor structural differences between them. The isomers usually require separation by liquid chromatography (LC) prior to mass spectrometry, which adds extra complexity to the analysis. Herein, we investigated and revisited the use of fragmentation methods such as collisional induced dissociation (CID), infrared multiphoton dissociation (IRMPD), electron induced dissociation (EID), and ultraviolet photodissociation (UVPD), available on a 12T Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) to generate characteristic fragments for the dihydroxylated vitamin D3 isomers that can be used to distinguish between them. Isomer-specific fragments were observed for the 1,25-dihydroxyvitamin D3, which were clearly absent in the 24,25-dihydroxyvitamin D3 MS/MS spectra using all fragmentation methods mentioned above. The fragments generated due to cleavage of the C-6/C-7 bond in the 1,25-dihydroxyvitamin D3 compound demonstrate that the fragile OH groups were retained during fragmentation, thus enabling differentiation between the two dihydroxylated vitamin D3 isomers without the need for prior chromatographic separation or derivatization.
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Affiliation(s)
- Anisha Haris
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | - Yuko P. Y. Lam
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | | | - Alina Theisen
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | - Bryan P. Marzullo
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | - Pascal Schorr
- Institut
für Chemie, Humboldt-Universität
zu Berlin, 12489 Berlin, Germany
| | - Dietrich A. Volmer
- Institut
für Chemie, Humboldt-Universität
zu Berlin, 12489 Berlin, Germany
| | - Peter B. O’Connor
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
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4
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Takatani T, Kunii Y, Satoh M, Eguchi A, Yamamoto M, Sakurai K, Takatani R, Nomura F, Shimojo N, Mori C. Vitamin D Metabolite Ratio in Pregnant Women with Low Blood Vitamin D Concentrations Is Associated with Neonatal Anthropometric Data. Nutrients 2022; 14:2201. [PMID: 35684001 PMCID: PMC9182679 DOI: 10.3390/nu14112201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/20/2022] [Accepted: 05/21/2022] [Indexed: 12/10/2022] Open
Abstract
Existing evidence on the correlation between maternal vitamin D concentrations and birth outcomes is conflicting. Investigation of these associations requires accurate assessment of vitamin D status, especially in individuals with low 25-hydroxyvitamin D (25(OH)D) concentrations. This study examined the correlations between birth outcomes and the maternal vitamin D metabolite ratio (VMR) 1 (defined as the ratio of 24,25(OH)2D3 to 25(OH)D) and VMR2 (defined as the ratio of 3-epi-25(OH)D3 to 25(OH)D) using data from the Japan Environment and Children's Study at Chiba Regional Center. A total of 297 mother-neonate pairs were analyzed. Using liquid chromatography-tandem mass spectrometry, we measured 25(OH)D2, 25(OH)D3, 24,25(OH)2D3, and 3-epi-25(OH)D3 concentrations in maternal serum samples. These data were analyzed in relation to birth anthropometric data using multivariable linear regression. Of the study participants, 85.2% showed insufficient vitamin D concentrations. VMR1 was strongly correlated with 25(OH)D concentrations, whereas VMR2 showed a weak correlation. Only VMR2 was associated with all anthropometric data. VMR2 in pregnant women with low vitamin D blood concentrations is a useful marker for neonatal anthropometric data and is independent of 25(OH)D. Accurate measurement of vitamin D metabolites could help better understand the effects of vitamin D on birth outcomes.
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Affiliation(s)
- Tomozumi Takatani
- Department of Pediatrics, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan;
| | - Yuzuka Kunii
- Department of Pediatrics, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan;
| | - Mamoru Satoh
- Division of Clinical Mass Spectrometry, Chiba University Hospital, Chiba 260-8677, Japan; (M.S.); (F.N.)
| | - Akifumi Eguchi
- Center for Preventive Medical Sciences, Chiba University, Chiba 263-8522, Japan; (A.E.); (M.Y.); (K.S.); (R.T.); (N.S.); (C.M.)
| | - Midori Yamamoto
- Center for Preventive Medical Sciences, Chiba University, Chiba 263-8522, Japan; (A.E.); (M.Y.); (K.S.); (R.T.); (N.S.); (C.M.)
| | - Kenichi Sakurai
- Center for Preventive Medical Sciences, Chiba University, Chiba 263-8522, Japan; (A.E.); (M.Y.); (K.S.); (R.T.); (N.S.); (C.M.)
| | - Rieko Takatani
- Center for Preventive Medical Sciences, Chiba University, Chiba 263-8522, Japan; (A.E.); (M.Y.); (K.S.); (R.T.); (N.S.); (C.M.)
| | - Fumio Nomura
- Division of Clinical Mass Spectrometry, Chiba University Hospital, Chiba 260-8677, Japan; (M.S.); (F.N.)
| | - Naoki Shimojo
- Center for Preventive Medical Sciences, Chiba University, Chiba 263-8522, Japan; (A.E.); (M.Y.); (K.S.); (R.T.); (N.S.); (C.M.)
| | - Chisato Mori
- Center for Preventive Medical Sciences, Chiba University, Chiba 263-8522, Japan; (A.E.); (M.Y.); (K.S.); (R.T.); (N.S.); (C.M.)
- Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan
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5
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Alexandridou A, Volmer DA. Sample preparation techniques for extraction of vitamin D metabolites from non-conventional biological sample matrices prior to LC-MS/MS analysis. Anal Bioanal Chem 2022; 414:4613-4632. [PMID: 35501505 PMCID: PMC9174318 DOI: 10.1007/s00216-022-04097-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 04/13/2022] [Accepted: 04/22/2022] [Indexed: 12/18/2022]
Abstract
The determination of vitamin D metabolites as status marker or for diagnostic purposes is almost entirely conducted from blood serum or plasma. Other biological matrices, however, have also interested researchers, for two main reasons: (1) alternative matrices may allow non-invasive sampling, permit easier sample transfer and require less demanding storage conditions; and (2) the levels of vitamin D metabolites in other body compartments may further aid the understanding of vitamin D metabolism and function. Thus, the development of reliable and efficient sample preparation protocols for sample matrices other than serum/plasma, which will remove potential interferences and selectively extract the targeted metabolites, is of great importance. This review summarizes sample preparation methods for measurement of vitamin D metabolites using liquid chromatography-(tandem)mass spectrometry in more than ten different human tissues, including hair, saliva, adipose tissue, brain and others.
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Affiliation(s)
- Anastasia Alexandridou
- Bioanalytical Chemistry, Humboldt University Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
| | - Dietrich A Volmer
- Bioanalytical Chemistry, Humboldt University Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany.
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6
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Xu S, Ni R, Lv L, Chen R, Chen Y, Huang F, Xu Z. Simultaneous determination of vitamin D metabolites 25(OH)D3 and 1α,25(OH)2D3 in human plasma using liquid chromatography tandem mass spectrometry. J Mass Spectrom Adv Clin Lab 2022; 24:65-79. [PMID: 35572785 PMCID: PMC9093011 DOI: 10.1016/j.jmsacl.2022.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/30/2022] [Accepted: 04/21/2022] [Indexed: 12/14/2022] Open
Abstract
LC-MS/MS method development and optimization for simultaneous determination of 25(OH)D3 and 1α,25(OH)2D3 in human plasma. Lowest concentration of 25(OH)D3 and 1α,25(OH)2D3 was 1000 and 20 pg/mL, respectively. The validated method was applied to a pharmacokinetic study in humans.
Background Although measurement of 25(OH)D3 is a routine analytical method to determine plasma vitamin D status, 1α,25(OH)2D3 is the biologically active form. Hence, simultaneous measurement of 25(OH)D3 and 1α,25(OH)2D3 could provide better insight into vitamin D status and pharmacokinetics. However, 1α,25(OH)2D3 has a low plasma concentration, making its quantification challenging for most analytical techniques. Here, we demonstrate use of liquid chromatography tandem mass spectrometry (LC-MSMS) for the development of a simple and rapid method for the simultaneous quantification of 25(OH)D3 and 1α,25(OH)2D3. Methods Samples were purified from 250 µL human plasma. Chromatography was performed on an analytical column, under gradient conditions using a mobile phase consisting of methanol-lithium acetate. The mass detector was operated in positive multiple reaction monitoring mode. The established method was validated according to the guidance issued by ICH and FDA. Furthermore, a clinical study was performed using this method to detect the plasma concentrations of 1α,25(OH)2D3 after oral administration of calcitriol. Results and conclusion The method was acceptably linear over the concentration ranges of 20–1200 pg/mL for 1α,25(OH)2D3 and 1–60 ng/mL for 25(OH)D3, respectively, with correlation coefficients of r2 > 0.993. Both the inter-assay and intra-assay precision was < 15%, and the analytical recoveries were within 100% ± 10%, with no significant matrix effect or carryover. Thereby, we, provide a facile method for the simultaneous detection of vitamin D metabolites in plasma.
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7
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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) 2 D, and 24,25(OH) 2 D by liquid chromatography-tandem mass spectrometry with efficient separation of 3-epi analogs, 23R,25(OH) 2 D 3 , and 4β,25(OH) 2 D 3. JOURNAL OF MASS SPECTROMETRY : JMS 2022; 57:e4792. [PMID: 34913542 DOI: 10.1002/jms.4792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/18/2021] [Accepted: 10/31/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND This study aimed to establish a robust, simple method to detect 25-hydroxyvitamin D3 (25(OH)D3 ), 25-hydroxyvitamin D2 (25(OH)D2 ), 1,25-dihydroxyvitamin D3 (1,25(OH)2 D3 ), 1,25-dihydroxyvitamin D2 (1,25(OH)2 D2 ), 24,25-dihydroxyvitamin D3 (24,25(OH)2 D3 ), and 24,25-dihydroxyvitamin D2 (24,25(OH)2 D2 ) simultaneously with efficient separation of 3-epi 25(OH)D3 , 3-epi 24,25(OH)2 D3 , 23R,25(OH)2 D3 , and 4β,25-dihydroxyvitamin D3 (4β,25(OH)2 D3 ) by liquid chromatography-tandem mass spectrometry (LC-MS/MS). METHOD This method was validated according to procedures established by Clinical and Laboratory Standards Institute (CLSI) and then applied in healthy population to determine the distribution of the vitamin D metabolites by LC-MS/MS. RESULTS The total-run CV% of 25(OH)D3 , 25(OH)D2 , 24,25(OH)2 D3 , 24,25(OH)2 D2 , 1,25(OH)2 D3 , and 1,25(OH)2 D2 were 6.30%-8.40%, 5.00%-8.40%, 5.90%-9.00%, 5.60%-9.00%, 5.60%-8.00%, and 7.00%-9.70%, respectively. The linearity correlation coefficients r of these six vitamin D metabolites were >0.99. The matrix effects of 25(OH)D3 , 25(OH)D2 , 24,25(OH)2 D3 , 24,25(OH)2 D2 , 1,25(OH)2 D3 , and 1,25(OH)2 D2 were 90.6%-103.3%, 97.3%-106.3%, 90.7%-106.3%, 100.7%-114.5%, 97.9%-104.6%, and 97.0%-111.0%. The trueness values of 25(OH)D3 , 25(OH)D2 , and 24,25(OH)2 D3 were 93.8%-103.0%, 101.0%, and 96.3%-100%, respectively. CONCLUSION This study successfully established an efficient, accurate, robust method for simultaneous measurement of serum 25(OH)D, 1,25(OH)2 D, and 24,25(OH)2 D by LC-MS/MS with efficient separation of 3-epi analogs, 23R,25(OH)2 D3 , and 4β,25(OH)2 D3 .
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Affiliation(s)
- Danchen Wang
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Songlin Yu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, China
| | - Qi Zhang
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Qian Cheng
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Shaowei Xie
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Yuanyuan Zhang
- Department of Application Support Center, Shanghai AB Sciex Analytical Instrument Trading Co., Ltd., Beijing, China
| | - Xiuzhi Guo
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Yutong Zou
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Yicong Yin
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Jialei Yu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Honglei Li
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Liangyu Xia
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Ling Qiu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Chinese Academy of Medical Sciences, Beijing, 100730, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Weibo Xia
- Department of Endocrinology, Key Laboratory of Endocrinology, National Commission of Health, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
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8
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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 SPECTROMETRY REVIEWS 2021. [PMID: 34967037 DOI: 10.1002/mas.21768] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 12/03/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Liquid chromatography/tandem mass spectrometry is firmly established today as the gold standard technique for analysis of vitamin D, both for vitamin D status assessments as well as for measuring complex and intricate vitamin D metabolic fingerprints. While the actual mass spectrometry technology has seen only incremental performance increases in recent years, there have been major, very impactful changes in the front- and back-end of MS-based vitamin D assays; for example, the extension to new types of biological sample matrices analyzed for an increasing number of different vitamin D metabolites, novel sample preparation techniques, new powerful chemical derivatization reagents, as well the continued integration of high resolution mass spectrometers into clinical laboratories, replacing established triple-quadrupole instruments. At the same time, the sustainability of mass spectrometry operation in the vitamin D field is now firmly established through proven analytical harmonization and standardization programs. The present review summarizes the most important of these recent developments.
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Affiliation(s)
| | - Pascal Schorr
- Department of Bioanalytical Chemistry, Humboldt University Berlin, Berlin, Germany
| | - Caroline S Stokes
- Food and Health Research Group, Faculty of Life Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
- Department of Molecular Toxicology, German Institute of Human Nutrition, Potsdam-Rehbrücke, Germany
| | - Dietrich A Volmer
- Department of Bioanalytical Chemistry, Humboldt University Berlin, Berlin, Germany
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9
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Tuddenham C, Greaves RF, Rajapaksa AE, Wark JD, Zakaria R. Detection of Vitamin D Metabolites in Breast Milk: Perspectives and challenges for measurement by Liquid Chromatography Tandem-Mass Spectrometry. Clin Biochem 2021; 97:1-10. [PMID: 34419456 DOI: 10.1016/j.clinbiochem.2021.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/09/2021] [Accepted: 08/17/2021] [Indexed: 11/19/2022]
Abstract
Breast milk is an emerging matrix for vitamin D assessment of breastfed infants and their mothers. It is considered a more reliable indicator of infant intake than the assessment of maternal circulating vitamin D. With the improved sensitivity of mass spectrometry-based technologies, this method principle has been the recent mainstay for the quantitation of various vitamin D metabolites in breast milk for population-based clinical trials. There are still several areas across the total testing process (pre-analytical, analytical and post-analytical) to be defined and harmonised to translate breast milk vitamin D measurement by liquid chromatography-tandem mass spectrometry (LC-MS/MS) from population-based research to routine clinical use and public health applications. Pre-analytically, the determination of the best form of vitamin D to measure in breast milk requires more evidence. Analytically, standardisation of the methods to allow for comparability of results is required. Post analytically, breast milk vitamin D decision limits are needed to turn the individual numerical outputs into clinically meaningful results. This review aims to synthesise the current evidence and utility of measurement of breast milk vitamin D by LC-MS/MS and to lead a future discussion on best practices to allow for its clinical utility beyond its current research-based use.
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Affiliation(s)
- Carlie Tuddenham
- School of Health and Biomedical Sciences, RMIT University, Victoria, Australia; Sonic Healthcare, Melbourne Pathology, Victoria, Australia
| | - Ronda F Greaves
- School of Health and Biomedical Sciences, RMIT University, Victoria, Australia; Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Victoria, Australia; Department of Paediatrics, University of Melbourne, Victoria Australia; Emerging Technologies Division, International Federation of Clinical Chemistry and Laboratory Medicine, Milan, Italy
| | - Anushi E Rajapaksa
- Department of Paediatrics, University of Melbourne, Victoria Australia; New Vaccines, Murdoch Children's Research Institute, Parkville, VIC, Australia; Think Project Global, Clayton, VIC, Australia; The Royal Children's Hospital, Parkville, VIC, Australia; The Royal Womens's Hospital, Parkville, VIC, Australia
| | - John D Wark
- Royal Melbourne Hospital Department of Medicine, University of Melbourne, Bone and Mineral Medicine and Department of Endocrinology and Diabetes, Royal Melbourne Hospital, Australia
| | - Rosita Zakaria
- School of Health and Biomedical Sciences, RMIT University, Victoria, Australia; Murdoch Children's Research Institute, Victoria, Australia.
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10
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Qi FF, Tao LM, Dai YM, Zhang BM, Wang X, Yu Y. Optimization and application of high-throughput supported liquid extraction for simultaneous determination of carotenoids and fat-soluble vitamins in serum. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1173:122672. [PMID: 33984631 DOI: 10.1016/j.jchromb.2021.122672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/10/2021] [Accepted: 03/15/2021] [Indexed: 11/25/2022]
Abstract
The demand for analysis of carotenoids (CAR) and fat-soluble vitamins (FSV) is continuously expanding, but currently used sample preparation methods either require complicated extraction procedure or large sample volume, let alone the reliability of the results. This study aimed to develop a fast, high-efficient, and high-throughput method based on supported liquid extraction (SLE) for the simultaneous extraction of FSV and CAR from human serum before using high-performance liquid chromatography-diode array detector (HPLC-DAD) analysis. The optimization of SLE parameters was achieved through response surface methodology (RSM) based on the Box-Behnken design (BBD) and included serum-water-extraction solvent ratio and eluent volume. Under optimal conditions, the proposed method gives acceptable limits of detection (LOD) (0.005-0.3 μg/mL), good recovery (89.6-110.9%) as well as relative standard deviation (RSD) of less than 10.1% by consuming lower serum sample (100 μL) and less sample preparation time (2 min per sample). Compared with liquid-phase extraction (LLE), the SLE delivers rapid extraction with higher recovery, better reproducibility, and lower matrix effect for CAR and FSV analysis. The method has been successfully applied to quantify CAR and FSV levels in serum of healthy individuals and age-related macular degeneration (AMD) patients, demonstrating the feasibility of the proposed method for epidemiology and routine applications.
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Affiliation(s)
- Fei-Fei Qi
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shanxi 710061, PR China
| | - Li-Mei Tao
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shanxi 710061, PR China
| | - Yi-Ming Dai
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shanxi 710061, PR China
| | - Bao-Ming Zhang
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shanxi 710061, PR China; Hospital of Stomatology, Xi'an Jiaotong University, Xi'an, Shanxi 710004, PR China
| | - Xin Wang
- Chemical Engineering Institute, Northwest University for Nationalities, Lanzhou, Gansu 730000, PR China
| | - Yan Yu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shanxi 710061, PR China.
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11
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Alshabrawy AK, Bergamin A, Sharma DK, Hickey SM, Brooks DA, O'Loughlin P, Wiese MD, Anderson PH. LC-MS/MS analysis of vitamin D 3 metabolites in human serum using a salting-out based liquid-liquid extraction and DAPTAD derivatization. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1173:122654. [PMID: 33819798 DOI: 10.1016/j.jchromb.2021.122654] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/26/2021] [Accepted: 03/08/2021] [Indexed: 11/17/2022]
Abstract
LC-MS/MS has recently emerged as the best-practice for simultaneous analysis of vitamin D metabolites. We have developed and validated an LC-MS/MS method for simultaneous quantification of 25(OH)D3, 24,25(OH)2D3, and 3-epi-25(OH)D3 in human serum. These three metabolites were extracted from 50 μL of serum by acetonitrile protein precipitation followed by salting-out of acetonitrile. DAPTAD (4-(4'-dimethylaminophenyl)-1,2,4-triazoline-3,5-dione) was used to derivatize the extracted metabolites and their deuterated isotope internal standards. Chromatographic separation was achieved on a UPLC C18 column (Waters® ACQUITY 100 × 2.1 mm, 1.7 µm) utilizing 0.1% formic acid and acetonitrile as mobile phases. Limits of quantification were 1 ng/mL for 25(OH)D3 and 0.1 ng/mL for 24,25(OH)D3 and 3-epi-25(OH)D3. In-house and external Vitamin D External Quality Assessment Scheme (DEQAS) quality control sample analysis revealed satisfactory method accuracy. Within-analytical batch and between analytical batches precision were <15%. Extraction recovery for the three analytes were all ˃ 85% and all showed adequate autosampler, bench-top and freeze-thaw stability. Inter-methodological comparison of 25(OH)D3 results in patient serum samples revealed systematic and proportional differences between our method and DiaSorin® Liaison immunoassay, however a good agreement with an independent LC-MS/MS method was found.
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Affiliation(s)
- Ali K Alshabrawy
- Clinical and Health Sciences Academic Unit, Health and Biomedical Innovation, University of South Australia, Adelaide, SA 5001, Australia; Pharmaceutical Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt
| | - Amanda Bergamin
- Clinical and Health Sciences Academic Unit, Health and Biomedical Innovation, University of South Australia, Adelaide, SA 5001, Australia
| | - Deepti K Sharma
- Clinical and Health Sciences Academic Unit, Health and Biomedical Innovation, University of South Australia, Adelaide, SA 5001, Australia
| | - Shane M Hickey
- Clinical and Health Sciences Academic Unit, Health and Biomedical Innovation, University of South Australia, Adelaide, SA 5001, Australia
| | - Doug A Brooks
- Clinical and Health Sciences Academic Unit, Health and Biomedical Innovation, University of South Australia, Adelaide, SA 5001, Australia
| | - Peter O'Loughlin
- Chemical Pathology Directorate, SA Pathology, Frome Rd, Adelaide, SA 5000, Australia; Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA 5000, Australia
| | - Michael D Wiese
- Clinical and Health Sciences Academic Unit, Health and Biomedical Innovation, University of South Australia, Adelaide, SA 5001, Australia
| | - Paul H Anderson
- Clinical and Health Sciences Academic Unit, Health and Biomedical Innovation, University of South Australia, Adelaide, SA 5001, Australia.
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12
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Liu DY, Li RY, Fu LJ, Adu-Gyamfi EA, Yang Y, Xu Y, Zhao LT, Zhang TF, Bao HQ, Xu XO, Gao XH, Yang XN, Ding YB. SNP rs12794714 of CYP2R1 is associated with serum vitamin D levels and recurrent spontaneous abortion (RSA): a case-control study. Arch Gynecol Obstet 2021; 304:179-190. [PMID: 33625596 DOI: 10.1007/s00404-021-06004-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/11/2021] [Indexed: 01/20/2023]
Abstract
PURPOSE Vitamin D (VD) deficiency seems to be associated with the risk of recurrent spontaneous abortion (RSA). Vitamin D receptor (VDR) and cytochrome P450 family 2 subfamily R member 1 (CYP2R1) are two genes which are vital for VD metabolism and actions. However, whether single-nucleotide polymorphisms (SNPs) in these genes are correlated with the risk of RSA are poorly understood. Therefore, we aimed to characterize the relationships among VDR SNPs, CYP2R1 SNPs and RSA. METHODS This case-control study enrolled 75 RSA patients and 83 controls. Serum VD and some cytokines were detected with LC-MS/MS and flow cytometry, respectively. Genotyping for three SNPs of CYP2R1 (rs10741657, rs10766197 and rs12794714) and five SNPs of VDR (rs7975232, rs1544410, rs2189480, rs2228570 and rs2239179) was done with polymerase chain reaction (PCR) and high-throughput sequencing. All the data were analyzed with appropriate methods and in different models. RESULTS The results revealed a significant correlation between the AG genotype of CYP2R1 rs12794714 and VD levels (OR 0.686; 95% CI 0.49-0.96; p = 0.028). Besides, the AG and GG genotypes of CYP2R1 rs12794714 were markedly related to the risk of RSA (OR 52.394, 59.497; 95% CI 2.683-1023.265, 3.110-1138.367; p = 0.009, 0.007, respectively). CONCLUSION Our results indicate that CYP2R1 rs12794714 might be a risk factor for RSA. Hence, early screening of pregnant women for CYP2R1 rs12794714 is necessary to warrant proactive counseling and treatment against RSA.
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Affiliation(s)
- Ding-Yuan Liu
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Department of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Ren-Yan Li
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, People's Republic of China
| | - Li-Juan Fu
- Department of Pharmacology, School of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Enoch Appiah Adu-Gyamfi
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Department of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Yin Yang
- Department of Epidemiology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Ying Xu
- Department of Epidemiology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Le-Tian Zhao
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, People's Republic of China
| | - Tian-Feng Zhang
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, People's Republic of China
| | - Hua-Qiong Bao
- Affiliated Hospital of Chongqing Academy of Population and Family Planning, Chongqing, 400020, People's Republic of China
| | - Xiao-Ou Xu
- Affiliated Hospital of Chongqing Academy of Population and Family Planning, Chongqing, 400020, People's Republic of China
| | - Xiao-Han Gao
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, 401120, People's Republic of China
| | - Xue-Niu Yang
- Affiliated Hospital of Chongqing Academy of Population and Family Planning, Chongqing, 400020, People's Republic of China.
| | - Yu-Bin Ding
- The Joint International Research Laboratory of Reproduction and Development, Ministry of Education, Department of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
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13
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Castillo-Peinado LS, Calderón-Santiago M, Priego-Capote F. Lyophilization as pre-processing for sample storage in the determination of vitamin D 3 and metabolites in serum and plasma. Talanta 2021; 222:121692. [PMID: 33167291 DOI: 10.1016/j.talanta.2020.121692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 09/14/2020] [Accepted: 09/18/2020] [Indexed: 10/23/2022]
Abstract
Determination of vitamin D levels in human biological specimens has gained a high relevance over the last decades, essentially because low levels have been associated with several biological disorders. In fact, vitamin D deficiency has become a worldwide health concern covering all ages and genders. The storage of biofluids has to be considered for determination of vitamin D and metabolites in order to fully preserve matrices status. This study attempts to evaluate lyophilization of serum and plasma as a pre-processing step for sample storage prior to quantitative analysis of vitamin D3 and its main hydroxylated metabolites -25(OH)D3, 24,25(OH)2D3 and 1,25(OH)2D3. The protocol including sample lyophilization was characterized in terms of analytical features and compared to the same method, based on SPE-LC-MS/MS, without lyophilization. Sensitivity, precision and accuracy were not affected when we operated with lyophilized serum and plasma and results provided by a set of twenty-four serum samples from DEQAS (Vitamin D External Quality Assessment Scheme) were in agreement with reported concentrations for 25(OH)D3 and 1,25(OH)2D3. A stability study programmed for 9 months allowed ensuring that the concentration of vitamin D3 and metabolites in lyophilized serum and plasma stored at room temperature was not affected during this period. This research has demonstrated that the quantitation of target metabolites is not under the influence of lyophilization. Therefore, including lyophilization prior to analysis could reduce shipment and storage costs, avoid delays of sample processing, and increase the stability of the target analytes due to an effective quenching process.
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Affiliation(s)
- L S Castillo-Peinado
- Department of Analytical Chemistry, Annex Marie Curie Building, Campus of Rabanales, University of Córdoba, Córdoba, Spain; Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía University Hospital, University of Córdoba, Córdoba, Spain; Nanochemistry University Institute (IUNAN), Campus of Rabanales, University of Córdoba, Córdoba, Spain; CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Spain
| | - M Calderón-Santiago
- Department of Analytical Chemistry, Annex Marie Curie Building, Campus of Rabanales, University of Córdoba, Córdoba, Spain; Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía University Hospital, University of Córdoba, Córdoba, Spain; Nanochemistry University Institute (IUNAN), Campus of Rabanales, University of Córdoba, Córdoba, Spain; CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Spain
| | - F Priego-Capote
- Department of Analytical Chemistry, Annex Marie Curie Building, Campus of Rabanales, University of Córdoba, Córdoba, Spain; Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía University Hospital, University of Córdoba, Córdoba, Spain; Nanochemistry University Institute (IUNAN), Campus of Rabanales, University of Córdoba, Córdoba, Spain; CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Spain.
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14
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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 Analyt Technol Biomed Life Sci 2020; 1158:122394. [PMID: 33091679 DOI: 10.1016/j.jchromb.2020.122394] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/06/2020] [Accepted: 09/23/2020] [Indexed: 12/17/2022]
Abstract
Vitamin D status is typically assessed by the measurement of 25-hydroxyvitamin D (25(OH)D). However, in selected patient groups the sole determination of 25(OH)D has been proven insufficient for this purpose. The simultaneous measurement of additional vitamin D metabolites may provide useful information for a better evaluation of the vitamin D status. Therefore, we developed and validated a liquid chromatography tandem mass spectrometry (LC-MS/MS) method for the simultaneous determination of 25(OH)D3, 25(OH)D2, 24,25(OH)2D3 and additionally 25,26(OH)2D3, which was identified with a synthesized pure substance. Pure and deuterated substances were used to prepare calibrators and internal standards for all target metabolites. Pre-analytical sample preparation comprised protein precipitation followed by liquid-liquid-extraction and derivatization with 4-Phenyl-1,2,4-triazole-3,5-dione (PTAD) using 50 µL sample volume. Samples were analyzed on an Agilent HPLC 1260 system equipped with a silica-based Kinetex® 5 µm F5 100 Å core-shell column (150 × 4.6 mm) coupled to a Sciex 4500 mass spectrometer. For all four metabolites, limit of detection (LoD) and limit of quantification (LoQ) ranged from 0.3 to 1.5 nmol/L and 1.0 to 3.1 nmol/L, respectively. Recovery varied between 76.1 % and 84.3 %. Intra- and inter-assay imprecision were <8.6 % and <11.5 %, respectively. The analysis of external and internal quality control samples showed good accuracy for 25(OH)D3, 25(OH)D2, 24(R),25(OH)2D3 and 25,26(OH)2D3. Method comparison studies with human samples that were also analyzed with two other LC-MS/MS methods showed close agreement. Finally, the present method has been shown capable of identifying patients with 24-hydroxylase deficiency, which proves its clinical utility.
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15
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Yoshimura Y, Togashi M, Ogawa S, Higashi T. 3-Epi-25-hydroxyvitamin D 3 is a poor substrate for SULT2A1: Analysis of its 3-sulfate in cord plasma and recombinant human SULT2A1 incubate. Steroids 2020; 162:108695. [PMID: 32649998 DOI: 10.1016/j.steroids.2020.108695] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/25/2020] [Accepted: 06/30/2020] [Indexed: 02/08/2023]
Abstract
A variety of metabolites derived from 25-hydroxyvitamin D3 [25(OH)D3], including its 3-epimer [Epi-25(OH)D3] and 3-O-sulfate [25(OH)D3-3S], is found in human plasma/serum. We hypothesized that the 3-O-sulfate of Epi-25(OH)D3 [Epi-25(OH)D3-3S] might be present in plasma/serum. Clarifying this point could improve our understanding of the metabolism of vitamin D3. In this study, we first carefully analyzed the cord plasma samples by derivatization-assisted liquid chromatography/electrospray ionization-tandem mass spectrometry and demonstrated the occurrence of Epi-25(OH)D3-3S in the plasma. However, the concentration ratio of Epi-25(OH)D3-3S to 25(OH)D3-3S (sulfated form) was infinitely lower than the ratio of Epi-25(OH)D3 to 25(OH)D3 (unconjugated form). To determine what caused this result, we next performed an in vitro experiment of the 3-O-sulfation for 25(OH)D3 and Epi-25(OH)D3 using the recombinant human sulfotransferase (SULT) 2A1. This in vitro experiment revealed that Epi-25(OH)D3 is a poor substrate for the 3-O-sulfation catalyzed by SULT2A1 as compared to 25(OH)D3. This substrate specificity of SULT2A1 would be the main cause for the result obtained from the analysis of the cord plasma samples.
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Affiliation(s)
- Yusuke Yoshimura
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba 278-8510, Japan
| | - Moeka Togashi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba 278-8510, Japan
| | - Shoujiro Ogawa
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba 278-8510, Japan; Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, 1 Sanzo, Gakuen-cho, Fukuyama-shi, Hiroshima 729-0292, Japan
| | - Tatsuya Higashi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba 278-8510, Japan.
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16
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Lyu H, Wang S, Jin Y, Shen R, Chen J, Zhu C, Chen B, Wu C. Simultaneous determination of VD2, VD3, 25(OH) D2, and 25(OH) D3 in human plasma using electrospray LC-MS/MS as well as its application to evaluate VD plasma levels in depressive, schizophrenic patients and healthy individuals. Biomed Chromatogr 2020; 34:e4932. [PMID: 32592191 DOI: 10.1002/bmc.4932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/17/2020] [Accepted: 06/24/2020] [Indexed: 11/08/2022]
Abstract
Vitamin D measurements in biological fluids by liquid chromatography-tandem mass spectrometry (LC-MS/MS) have been widely used but remain challenging at very low concentration levels. Rapid, high recovery, sensitive and reliable measurements of vitamin D, as well as its primary metabolites using LC-MS/MS are urgently needed for a routine clinical laboratory. Herein, we reported a novel electrospray LC-MS/MS method for determining vitamin D and its primary metabolites using the supported liquid extraction method to achieve higher recoveries, with optimized pH values to achieve optimal derivatization efficiency for higher sensitivity and selected chromatographic conditions to shorten the separation time. The method has been validated with respect to selectivity, recovery, matrix effects, accuracy and precision, stabilities, carryover and dilution effects. The method has been successfully applied to quantify the VD plasma concentrations of depressive, schizophrenic patients and healthy individuals. The result showed that there were significant differences in plasma VD levels between mental disorder patients with healthy individuals, and the total VD levels in mental disorder patients were much higher than healthy individuals, which might require larger clinical samples for validation.
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Affiliation(s)
- Haiyan Lyu
- Department of Pharmacy, Xiamen Xianyue Hospital, Xiamen 361012, China
| | - Suping Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China
| | - Ying Jin
- The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Rong Shen
- School of Medicine, Xiamen University, Xiamen 361102, China
| | - Jiayun Chen
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China
| | - Chunyan Zhu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China
| | - Binbin Chen
- Department of Pharmacy, Xiamen Xianyue Hospital, Xiamen 361012, China
| | - Caisheng Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, China
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17
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Quantification of fat-soluble vitamins and their metabolites in biological matrices: an updated review. Bioanalysis 2020; 12:625-640. [DOI: 10.4155/bio-2020-0069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Fat-soluble vitamins (FSVs) are micronutrients essential in maintaining normal physiological function, metabolism and human growth. Ongoing increased awareness regarding FSV concentrations and their impact on human growth along with disease progression warrant the need of developing selective and sensitive analytical methods. LC–MS/MS is currently the method of choice for accurate quantitation of FSVs. However, there are multiple approaches for extraction, separation and calibration of FSVs in biological matrices. This review discusses recent LC–MS/MS methods for the simultaneous quantification of FSVs in biological matrices and summarizes sample pretreatment procedures, chromatographic conditions and calibration approaches. Current challenges and clinical applications in various disease states are also highlighted.
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18
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Seki M, Sato M, Takiwaki M, Takahashi K, Kikutani Y, Satoh M, Nomura F, Kuroda Y, Fukuzawa S. A novel caged Cookson-type reagent toward a practical vitamin D derivatization method for mass spectrometric analyses. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8648. [PMID: 31715032 PMCID: PMC7064983 DOI: 10.1002/rcm.8648] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/01/2019] [Accepted: 11/03/2019] [Indexed: 05/05/2023]
Abstract
RATIONALE 25-Hydroxylated vitamin D is the best marker for vitamin D (VD). Due to its low ionization efficiency, a Cookson-type reagent, 1,2,4-triazoline-3,5-dione (TAD), is used to improve the detection/quantification of VD metabolites by liquid chromatography/tandem mass spectrometry (LC/MS/MS). However, the high reactivity of TAD makes its solution stability low and inconvenient for practical use. We here describe the development of a novel caged Cookson-type reagent, and we assess its performances in the quantitative and differential detection of four VD metabolites in serum using LC/MS/MS. METHODS Caged 4-(4'-dimethylaminophenyl)-1,2,4-triazoline-3,5-dione (DAPTAD) analogues were prepared from 4-(4'-dimethylaminophenyl)-1,2,4-triazolidine-3,5-dione. Their stability and reactivity were examined. The optimized caged DAPTAD (14-(4-(dimethylamino)phenyl)-9-phenyl-9,10-dihydro-9,10-[1,2]epitriazoloanthracene-13,15-dione, DAP-PA) was used for LC/MS/MS analyses of VD metabolites. RESULTS The solution stability of DAP-PA in ethyl acetate dramatically improved compared with that of the non-caged one. We measured the thermal retro-Diels-Alder reaction enabling the release of DAPTAD and found that the derivatization reaction was temperature-dependent. We also determined the detection limit and the lower limit of quantifications for four VD metabolites with DAPTAD derivatization. CONCLUSIONS DAP-PA was stable enough for mid- to long-term storage in solution. This advantage shall contribute to the detection and quantification of VD in clinical laboratories, and as such to the broader use of clinical mass spectrometry.
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Affiliation(s)
- Masahiko Seki
- Medical Association GroupTokuyama CorporationIbarakiJapan
| | - Makoto Sato
- Tsukuba Research LabTokuyama CorporationIbarakiJapan
| | - Masaki Takiwaki
- Open Innovation Promotion Department, Management Strategy Planning DivisionJEOL Ltd.TokyoJapan
- Division of Clinical Mass SpectrometryChiba University HospitalChibaJapan
| | - Koji Takahashi
- Open Innovation Promotion Department, Management Strategy Planning DivisionJEOL Ltd.TokyoJapan
- Department of Biotechnology and Life Science, Faculty of TechnologyTokyo University of Agriculture and TechnologyTokyoJapan
| | - Yoshikuni Kikutani
- Open Innovation Promotion Department, Management Strategy Planning DivisionJEOL Ltd.TokyoJapan
- Department of Biotechnology and Life Science, Faculty of TechnologyTokyo University of Agriculture and TechnologyTokyoJapan
| | - Mamoru Satoh
- Division of Clinical Mass SpectrometryChiba University HospitalChibaJapan
| | - Fumio Nomura
- Division of Clinical Mass SpectrometryChiba University HospitalChibaJapan
| | - Yutaka Kuroda
- Department of Biotechnology and Life Science, Faculty of TechnologyTokyo University of Agriculture and TechnologyTokyoJapan
| | - Seketsu Fukuzawa
- Open Innovation Promotion Department, Management Strategy Planning DivisionJEOL Ltd.TokyoJapan
- Department of Biotechnology and Life Science, Faculty of TechnologyTokyo University of Agriculture and TechnologyTokyoJapan
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19
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Vitamin D testing: advantages and limits of the current assays. Eur J Clin Nutr 2020; 74:231-247. [DOI: 10.1038/s41430-019-0553-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 12/25/2022]
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20
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Kohira T, Kita Y, Tokuoka SM, Shiba M, Satake M, Shimizu T. Characterization of supported liquid extraction as a sample pretreatment method for eicosanoids and related metabolites in biological fluids. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1124:298-307. [PMID: 31260873 DOI: 10.1016/j.jchromb.2019.06.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/25/2019] [Accepted: 06/10/2019] [Indexed: 02/01/2023]
Abstract
Sample pretreatment is an important process in liquid chromatography-mass spectrometry-based quantitative lipidomics. Reversed-phase solid phase extraction (RP-SPE) has been widely used for analyzing various types of samples, including aqueous samples such as cell culture media, plasma, serum, urine, and other biological fluids. Because lipid mediators are often protein-bound, prior deproteinization is necessary for their effective recovery. Deproteinization is typically performed by the addition of organic solvents, which requires time-consuming evaporation-reconstitution, or dilution with aqueous solvents before RP-SPE; however, both of these approaches compromise the analytical performance. As a potential alternative, we attempted to utilize supported liquid extraction (SLE), an automation-compatible variant of liquid-liquid extraction, for the determination of eicosanoids and related metabolites in aqueous samples. We screened 81 different sample diluent-eluent conditions and found that the use of 0.1% formic acid-water as the diluent and 0.1% formic acid-methyl acetate as the eluent enabled the optimum recovery of a variety of eicosanoids, except for peptide leukotrienes. The optimized SLE method efficiently removed protein from human plasma, while phospholipids and neutral lipids were modestly recovered. Moreover, the proposed method exhibited a quantitative performance comparable to that of typical ordinary RP-SPE method in the analysis of human platelets stimulated with thrombin receptor-activating peptide 6. Thus, we propose SLE as an attractive option for rapid lipid mediator extraction from aqueous samples.
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Affiliation(s)
- Takahiro Kohira
- Department of Lipidomics, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Central Blood Institute, Japanese Red Cross Society, 2-1-67 Tatsumi, Koto-ku, Tokyo 135-8521, Japan
| | - Yoshihiro Kita
- Department of Lipidomics, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Life Sciences Core Facility, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Suzumi M Tokuoka
- Department of Lipidomics, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masayuki Shiba
- Central Blood Institute, Japanese Red Cross Society, 2-1-67 Tatsumi, Koto-ku, Tokyo 135-8521, Japan
| | - Masahiro Satake
- Central Blood Institute, Japanese Red Cross Society, 2-1-67 Tatsumi, Koto-ku, Tokyo 135-8521, Japan
| | - Takao Shimizu
- Department of Lipidomics, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Department of Lipid Signaling, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
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Mena-Bravo A, Calderón-Santiago M, Luque de Castro M, Priego-Capote F. Evaluation of short-term storage prior to analysis of vitamin D3 and metabolites in human serum by liquid chromatography coupled to tandem mass spectrometry. Talanta 2019; 198:344-349. [DOI: 10.1016/j.talanta.2019.02.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/03/2019] [Accepted: 02/05/2019] [Indexed: 12/31/2022]
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Yu S, Zhou W, Wang D, Yin Y, Cheng Q, Xie S, Sun D, Li H, Cheng X, Qiu L. Rapid liquid chromatography-tandem mass spectrometry method for determination of 24,25(OH) 2D and 25OHD with efficient separation of 3-epi analogs. J Steroid Biochem Mol Biol 2019; 187:146-151. [PMID: 30476592 DOI: 10.1016/j.jsbmb.2018.11.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/12/2018] [Accepted: 11/23/2018] [Indexed: 01/26/2023]
Abstract
This study establishes and validates a rapid method based on liquid chromatography-tandem mass spectrometry (LC-MS/MS) without derivatization steps to simultaneously measure of 24,25(OH)2D2, 24,25(OH)2D3, 25OHD2, and 25OHD3, while efficiently separating the 3-epi analogs. Samples were prepared by precipitation and liquid-liquid extraction. The linearity, precision, accuracy, recovery and matrix effect of the method were thoroughly evaluated according to the Clinical & Laboratory Standards Institute guidelines. Additionally, the four vitamin D metabolites in the serum of 38 apparently healthy Chinese volunteers were evaluated. The total analysis time was 8.0 min, with efficient separation of 3-epi 24,25(OH)2D3 and 3-epi 25OHD3, without interference from isomers such as 23,25(OH)2D3 or 1,25(OH)2D2, 1,25(OH)2D3. Good reproducibility was obtained for all four metabolites with within-run coefficient variations (CVs) of 4.07%-6.55%, 4.26%-7.84%, 2.46%-7.21%, and 4.90%-6.87% for 25OHD3, 25OHD2, 24,25(OH)2D3, and 24,25(OH)2D2, respectively, and the total CVs were 4.29%-6.64%, 6.14%-7.84%, 4.33%-7.21%, 5.82%-9.90%, respectively. The limit of quantification was 0.625 ng/mL for 25OHD3 and 25OHD2, and 0.5 ng/mL for 24,25(OH)2D3 and 24,25(OH)2D2. The relative bias of the LC-MS/MS method compared to the certified results of SRM 972a for 25OHD3, 25OHD2 and 24,25(OH)2D3 was -2.21% to 1.01%, 3.38% to 6.73%, and -7.72% to -3.9%, respectively. The mean±SD values for 25OHD, 24,25(OH)2D and 25OHD/24,25(OH)2D in the volunteers were 13.5±4.4 ng/mL(range:7.6-27.5 ng/mL), 0.84±0.42 ng/mL (range:0.26-2.1 ng/mL), and 18±7(range:8-37), respectively. Thus, a simple, precise LC-MS/MS method for appropriate retention and separation of vitamin D metabolites and their epi analogs was developed.
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Affiliation(s)
- Songlin Yu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Weiyan Zhou
- Beijing Hospital National Center for Clinical Laboratories, Ministry of health, Beijing 100730, China
| | - Danchen Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Yicong Yin
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Qian Cheng
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Shaowei Xie
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Dandan Sun
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Honglei Li
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xinqi Cheng
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Ling Qiu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China.
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Pharmacokinetic interaction of calcitriol with 20(S)-protopanaxadiol in mice: Determined by LC/MS analysis. Eur J Pharm Sci 2019; 130:173-180. [PMID: 30654110 DOI: 10.1016/j.ejps.2019.01.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 12/23/2018] [Accepted: 01/11/2019] [Indexed: 12/31/2022]
Abstract
The physiological and anti-cancer functions of vitamin D3 are accomplished primarily via 1α,25-dihydroxyvitamin D3 (calcitriol), whereas 20(S)-protopanaxadiol (aPPD) is a ginsenoside, which is isolated from Panax ginseng, with potential anti-cancer benefits. In the present study, we report a pharmacokinetic (PK) herb-nutrient interaction between calcitriol and aPPD in mice. A liquid chromatography mass spectrometry (LC/MS) method was developed using 4-phenyl-1,2,4-triazoline-3,5-dione derivatizing agent and we subsequently used the method to quantitate calcitriol in mouse serum. The limit of quantitation was 0.01 ng/ml which is approximately 100 fold lower than the previously reported assay from our laboratory. Calcitriol PK parameters were determined in non-tumor-bearing or C4-2 human prostate tumor-bearing nude mice following oral co-administration of calcitriol either alone or in combination with aPPD. Mice were pretreated with oral aPPD (70 mg/kg) or vehicle control twice daily for seven consecutive days, followed by a single oral dose of 4 μg/kg calcitriol alone or in combination with aPPD. Our PK results demonstrated that co-administration of calcitriol with aPPD (following pre-treatment with vehicle for seven days) resulted in a 35% increase in the area under the curve (AUC0-24 h) and a 41% increase in the maximum serum concentration (Cmax) compared to the calcitriol only group. aPPD therefore significantly increased calcitriol serum exposure. We also saw a reduction in the time required to reach Cmax. In contrast, calcitriol PK in mice co-administered with calcitriol and aPPD as well as those pretreated seven consecutive days with aPPD was no different than that determined for the mice that received vehicle for seven days as pre-treatment. Co-administration of calcitriol with aPPD therefore could increase health benefits of vitamin D3, however any increased risk of hypercalcemia, resulting from this combination approach, requires further investigation. Lastly, we surmise that a cytochrome P450 inhibition-based mechanism may contribute to the observed PK interaction.
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Recent advances in sample preparation and analysis methods for vitamin D and its analogues in different matrices. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.11.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Ihara H, Kiuchi S, Ishige T, Nishimura M, Matsushita K, Satoh M, Nomura F, Yamashita M, Kitajima I, Tsugawa N, Okano T, Hirota K, Miura M, Totani M, Hashizume N. Surveillance evaluation of the standardization of assay values for serum total 25-hydroxyvitamin D concentration in Japan. Ann Clin Biochem 2018. [DOI: 10.1177/0004563218765570] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background To assess the vitamin D nutritional status, serum total 25-hydroxyvitamin D (25(OH)D) concentration is measured. We used six automated 25(OH)D immunoassays (AIAs) available in Japan and certified by the Vitamin D Standardization Program (VDSP) at the U.S. Center for Disease Control and Prevention to assess the concordance of the assay results. Methods Serum total 25(OH)D concentrations in SRM 972a and 20 serum samples from patients were determined using three liquid chromatography-tandem mass spectrometry (LC-MS/MS) and six AIAs (pilot study), and an additional 110 serum samples were assessed by the six AIAs (surveillance study). The assay bias from the results of LC-MS/MS by Chiba University or consensus values (i.e. average of six AIAs) was estimated using the procedure described in CLSI document EP09-A3. Results LC-MS/MS at Chiba University could completely separate 25(OH)D2, 25(OH)D3 and 3-epi-25(OH)D3, and the observed values including total 25(OH)D in SRM 972a were all within ±1·SD of the assigned values. All AIAs produced results greater than ±3·SD. In the pilot study, four of the six AIAs had an average percentage bias, as estimated by confidence interval (CI), larger than ±5% (acceptance criterion in CLSI); the bias converged from −6.5% to 3.2% after adjustment by LC-MS/MS. In the surveillance study, 25(OH)D concentrations in AIAs all adjusted to LC-MS/MS converged within ±5% from consensus values. However, some AIAs showed negative or positive bias from the consensus values. Conclusions Current AIAs in Japan continue to lack standardization. Manufacturers should implement quality assurance strategies so that their values more closely align to those of standard reference material 972a.
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Affiliation(s)
- Hiroshi Ihara
- Faculty of Risk and Crisis Management, Chiba Institute of Science, Chiba, Japan
| | - Sachiko Kiuchi
- Faculty of Risk and Crisis Management, Chiba Institute of Science, Chiba, Japan
| | - Takayuki Ishige
- Division of Laboratory Medicine and Clinical Genetics, Chiba University Hospital, Chiba, Japan
| | - Motoi Nishimura
- Division of Laboratory Medicine and Clinical Genetics, Chiba University Hospital, Chiba, Japan
| | - Kazuyuki Matsushita
- Division of Laboratory Medicine and Clinical Genetics, Chiba University Hospital, Chiba, Japan
| | - Mamoru Satoh
- Divisions of Clinical Mass Spectrometry and Clinical Genetics, Chiba University Hospital, Chiba, Japan
| | - Fumio Nomura
- Divisions of Clinical Mass Spectrometry and Clinical Genetics, Chiba University Hospital, Chiba, Japan
| | - Mine Yamashita
- Department of Clinical Laboratory and Molecular Pathology, Graduate School of Pharmaceutical Science, University of Toyama, Toyama, Japan
| | - Isao Kitajima
- Department of Clinical Laboratory and Molecular Pathology, Graduate School of Pharmaceutical Science, University of Toyama, Toyama, Japan
| | - Naoko Tsugawa
- Department of Hygienic Sciences, Kobe Pharmaceutical University, Hyogo, Japan
| | - Toshio Okano
- Department of Hygienic Sciences, Kobe Pharmaceutical University, Hyogo, Japan
| | - Kouichi Hirota
- International Center for Nutrition and Information, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Masakazu Miura
- Faculty of Pharmaceutical Sciences, Hokuriku University, Ishikawa, Japan
| | - Masayuki Totani
- International Center for Nutrition and Information, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Naotaka Hashizume
- Faculty of Health Sciences, University of Human Arts and Sciences, Saitama, Japan
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Ishige T, Satoh M, Ogawa S, Nishimura M, Matsushita K, Higashi T, Nomura F. Improved sensitivity of serum/plasma 1α,25-dihydroxyvitamin D quantification by DAPTAD derivatization. Clin Chim Acta 2017; 473:173-179. [PMID: 28864231 DOI: 10.1016/j.cca.2017.08.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 08/28/2017] [Accepted: 08/28/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Although immunoassays have several limitations such as the cross-reactivities of antibodies, such techniques are widely used for serum/plasma 1,25(OH)2D quantification. An accurate method is required for the determination of the 1,25(OH)2D status. METHODS We designed a serum/plasma 1,25(OH)2D quantification method using LC-MS/MS. Immunoaffinity extraction (IE) and the recently developed Cookson-type reagent 4-(4'-dimethylaminophenyl)-1,2,4-triazoline-3,5-dione (DAPTAD) were used for sample preparation and derivatization, respectively. Analytical and pre-analytical validations were performed. Serum 1,25(OH)2D3 concentrations were determined in 232 healthy Japanese individuals. RESULTS The intra- and inter-assay CVs for 1,25(OH)2D3 were 5.2% and 7.0%, respectively. The limit of quantification for 1,25(OH)2D3 was 7.1pg/ml. Rheumatoid factor (RF) at concentrations below 517IU/ml did not affect serum 1,25(OH)2D analysis. No significant differences were observed for various blood collection tubes, repeated freeze-thaw cycles, whole blood standing time, or serum storage time. A strong correlation between LC-MS/MS and radioimmunoassay (RIA) was observed (r=0.786), but serum 1,25(OH)2D concentrations obtained from RIA were 2-fold higher than those obtained from LC-MS/MS. Serum 1,25(OH)2D3 concentrations by LC-MS/MS were 18.7-53.9pg/ml. CONCLUSION A highly sensitive and selective LC-MS/MS-based serum/plasma 1,25(OH)2D quantification method was developed using IE and DAPTAD derivatization. This method will enable the accurate determination of serum/plasma 1,25(OH)2D concentrations in the clinical setting.
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Affiliation(s)
- Takayuki Ishige
- Division of Laboratory Medicine, Chiba University Hospital, Chiba, Japan.
| | - Mamoru Satoh
- Division of Clinical Mass Spectrometry, Chiba University Hospital, Chiba, Japan
| | - Shoujiro Ogawa
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan
| | - Motoi Nishimura
- Division of Laboratory Medicine, Chiba University Hospital, Chiba, Japan
| | | | - Tatsuya Higashi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan
| | - Fumio Nomura
- Division of Clinical Mass Spectrometry, Chiba University Hospital, Chiba, Japan
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A fast and simple method for simultaneous measurements of 25(OH)D, 24,25(OH) 2D and the Vitamin D Metabolite Ratio (VMR) in serum samples by LC-MS/MS. Clin Chim Acta 2017; 473:116-123. [PMID: 28842174 DOI: 10.1016/j.cca.2017.08.024] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 08/21/2017] [Accepted: 08/21/2017] [Indexed: 11/20/2022]
Abstract
BACKGROUND Rapid, easy and reliable measurement of the major vitamin D metabolites is required in order to fulfill the needs of a clinical routine laboratory. To overcome these challenges, we have developed and validated a LC-MS/MS method for the quantification of 25-hydroxyvitamin D2 and D3, epi-25-hydroxyvitamin D3 and 24,25-dihydroxyvitamin D3. METHODS Sample preparation was based on precipitation and centrifugation of 100μL of patient serum, followed by injection into the LC-MS/MS system. Samples from Vitamin D Standardization Program (n=80) and patient samples (n=281) have been compared with a reference LC-MS/MS method. For the analytical validation NIST and Labquality quality control materials were used. RESULTS Mean intra-assay and inter-assay imprecision were <6.0 and 6.4% and mean recoveries were within 95-104%. LOQ's were 0.5μg/L for 24,25(OH)2D3, 1.1μg/L for 25(OH)D3 and epi-25(OH)D3 and 1.7μg/L for 25(OH)D2. A 3% bias obtained between the proposed and the reference method satisfies Vitamin D Standardization Program recommendations. CONCLUSIONS We present a rapid, easy, reliable and cost-effective method completely adequate for routine testing, which permits the measurement of the ratio of 24,25-dihydroxyvitamin D to 25-hydroxyvitamin D, Vitamin D Metabolite Ratio (VMR), in serum samples.
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Improved accuracy of an tandem liquid chromatography–mass spectrometry method measuring 24R,25-dihydroxyvitamin D3 and 25-hydroxyvitamin D metabolites in serum using unspiked controls and its application to determining cross-reactivity of a chemiluminescent microparticle immunoassay. J Chromatogr A 2017; 1497:102-109. [DOI: 10.1016/j.chroma.2017.03.058] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/11/2017] [Accepted: 03/19/2017] [Indexed: 11/21/2022]
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Simultaneous quantitation of endogenous estrone, 17β-estradiol, and estriol in human serum by isotope-dilution liquid chromatography–tandem mass spectrometry for clinical laboratory applications. Anal Bioanal Chem 2017; 409:2627-2638. [DOI: 10.1007/s00216-017-0207-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 01/06/2017] [Accepted: 01/12/2017] [Indexed: 12/11/2022]
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Enhancing analysis throughput, sensitivity and specificity in LC/ESI-MS/MS assay of plasma 25-hydroxyvitamin D 3 by derivatization with triplex 4-(4-dimethylaminophenyl)-1,2,4-triazoline-3,5-dione (DAPTAD) isotopologues. J Pharm Biomed Anal 2016; 136:126-133. [PMID: 28081498 DOI: 10.1016/j.jpba.2016.11.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/16/2016] [Accepted: 11/16/2016] [Indexed: 12/30/2022]
Abstract
The plasma/serum concentration of 25-hydroxyvitamin D3 [25(OH)D3] is a diagnostic index for vitamin D deficiency/insufficiency, which is associated with a wide range of diseases, such as rickets, cancer and diabetes. We have reported that the derivatization with 4-(4-dimethylaminophenyl)-1,2,4-triazoline-3,5-dione (DAPTAD) works well in the liquid chromatography/electrospray ionization-tandem mass spectrometry (LC/ESI-MS/MS) assay of the serum/plasma 25(OH)D3 for enhancing the sensitivity and the separation from a potent interfering metabolite, 3-epi-25-hydroxyvitamin D3 [3-epi-25(OH)D3]. However, enhancing the analysis throughput remains an issue in the LC/ESI-MS/MS assay of 25(OH)D3. The most obvious restriction of the LC/MS/MS throughput is the chromatographic run time. In this study, we developed an enhanced throughput method for the determination of the plasma 25(OH)D3 by LC/ESI-MS/MS combined with the derivatization using the triplex (2H0-, 2H3- and 2H6-) DAPTAD isotopologues. After separate derivatization with 1 of 3 different isotopologues, the 3 samples were combined and injected together into LC/ESI-MS/MS. Based on the mass differences between the isotopologues, the derivatized 25(OH)D3 in the 3 different samples were quantified within a single run. The developed method tripled the hourly analysis throughput without sacrificing assay performance, i.e., ease of pretreatment of plasma sample (only deproteinization), limit of quantification (1.0ng/mL when a 5μL-plasma was used), precision (intra-assay RSD≤5.9% and inter-assay RSD≤5.5%), accuracy (98.7-102.2%), matrix effects, and capability of separating from an interfering metabolite, 3-epi-25(OH)D3. The multiplexing of samples by the isotopologue derivatization was applied to the analysis of plasma samples of healthy subjects and the developed method was proven to have a satisfactory applicability.
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