101
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Integrated Metabolomics Assessment of Human Dried Blood Spots and Urine Strips. Metabolites 2017; 7:metabo7030035. [PMID: 28714878 PMCID: PMC5618320 DOI: 10.3390/metabo7030035] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/03/2017] [Accepted: 07/12/2017] [Indexed: 12/17/2022] Open
Abstract
(1) Background: Interest in the application of metabolomics toward clinical diagnostics development and population health monitoring has grown significantly in recent years. In spite of several advances in analytical and computational tools, obtaining a sufficient number of samples from patients remains an obstacle. The dried blood spot (DBS) and dried urine strip (DUS) methodologies are a minimally invasive sample collection method allowing for the relative simplicity of sample collection and minimal cost. (2) Methods: In the current report, we compared results of targeted metabolomics analyses of four types of human blood sample collection methods (with and without DBS) and two types of urine sample collection (DUS and urine) across several parameters including the metabolite coverage of each matrix and the sample stability for DBS/DUS using commercially available Whatman 903TM paper. The DBS/DUS metabolomics protocols were further applied to examine the temporal metabolite level fluctuations within hours and days of sample collection. (3) Results: Several hundred polar metabolites were monitored using DBS/DUS. Temporal analysis of the polar metabolites at various times of the day and across days identified several species that fluctuate as a function of day and time. In addition, a subset of metabolites were identified to be significantly altered across hours within a day and within successive days of the week. (4) Conclusion: A comprehensive DBS/DUS metabolomics protocol was developed for human blood and urine analyses. The described methodology demonstrates the potential for enabling patients to contribute to the expanding bioanalytical demands of precision medicine and population health studies.
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Samsonova JV, Osipov AP, Kondakov SE. Strip-dried whole milk sampling technique for progesterone detection in cows by ELISA. Talanta 2017; 175:143-149. [PMID: 28841971 DOI: 10.1016/j.talanta.2017.07.032] [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: 04/27/2017] [Revised: 07/11/2017] [Accepted: 07/12/2017] [Indexed: 01/29/2023]
Abstract
New sampling format of whole cows' milk in strip-dried form was proposed. Few methodological issues of whole milk progesterone ELISA using samples dried on a membrane carrier in a form of strip were investigated and optimized: width of a strip, shape of punched/cut-off part of membrane, sample application method. It was shown that distribution of the hormone along narrow strip was even except the initial part of a strip (the first 0.5 × 0.5cm piece) where recovered concentration of progesterone was higher. Storage stability of progesterone in strip-dried whole cows' milk samples at 4°C, ambient temperature, 37°C and 60°C was investigated. Rising of the detected progesterone concentration over storage period at elevated temperatures was observed predominantly in milk samples with low hormone concentration (from non-pregnant cows). Strip-dried whole milk samples can be used for collection, transportation, storage and ELISA analysis of progesterone level which is correlated with reproductive status of cows.
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Affiliation(s)
- J V Samsonova
- Department of Chemical Enzymology, Chemistry Faculty, M.V.Lomonosov Moscow State University, Moscow, Russia; National University of Science and Technology "MISiS", Moscow, Russia.
| | - A P Osipov
- Department of Chemical Enzymology, Chemistry Faculty, M.V.Lomonosov Moscow State University, Moscow, Russia; National University of Science and Technology "MISiS", Moscow, Russia
| | - S E Kondakov
- Department of Chemical Enzymology, Chemistry Faculty, M.V.Lomonosov Moscow State University, Moscow, Russia; National University of Science and Technology "MISiS", Moscow, Russia
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103
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Direct analysis of site-specific N-glycopeptides of serological proteins in dried blood spot samples. Anal Bioanal Chem 2017; 409:4971-4981. [DOI: 10.1007/s00216-017-0438-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/22/2017] [Accepted: 05/29/2017] [Indexed: 10/19/2022]
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104
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Suzuki M, Nishiumi S, Kobayashi T, Sakai A, Iwata Y, Uchikata T, Izumi Y, Azuma T, Bamba T, Yoshida M. Use of on-line supercritical fluid extraction-supercritical fluid chromatography/tandem mass spectrometry to analyze disease biomarkers in dried serum spots compared with serum analysis using liquid chromatography/tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2017; 31:886-894. [PMID: 28332299 DOI: 10.1002/rcm.7857] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 03/14/2017] [Accepted: 03/19/2017] [Indexed: 06/06/2023]
Abstract
RATIONALE The analytical stability and throughput of biomarker assays based on dried serum spots (DSS) are strongly dependent on the extraction process and determination method. In the present study, an on-line system based on supercritical fluid extraction-supercritical fluid chromatography coupled with tandem mass spectrometry (SFE-SFC/MS/MS) was established for analyzing the levels of disease biomarkers in DSS. METHODS The chromatographic conditions were investigated using the ODS-EP, diol, and SIL-100A columns. Then, we optimized the SFE-SFC/MS/MS method using the diol column, focusing on candidate biomarkers of oral, colorectal, and pancreatic cancer that were identified using liquid chromatography (LC)/MS/MS. RESULTS By using this system, four hydrophilic metabolites and 17 hydrophobic metabolites were simultaneously detected within 15 min. In an experiment involving clinical samples, PC 16:0-18:2/16:1-18:1 exhibited 93.8% sensitivity and 64.3% specificity, whereas PC 17:1-18:1/17:0-18:2 showed 81.3% sensitivity and 92.9% specificity for detecting oral cancer. In addition, assessments of the creatine levels demonstrated 92.3% sensitivity and 78.6% specificity for detecting colorectal cancer. CONCLUSIONS The results of this study indicate that our method has great potential for clinical diagnosis and would be suitable for large-scale screening. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Makoto Suzuki
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Shin Nishiumi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Takashi Kobayashi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Arata Sakai
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Yosuke Iwata
- Shimadzu Corporation, 1 Nishinokyo Kuwabara-cho, Nakagyo-ku, Kyoto, 604-8511, Japan
| | - Takato Uchikata
- Shimadzu Corporation, 1 Nishinokyo Kuwabara-cho, Nakagyo-ku, Kyoto, 604-8511, Japan
| | - Yoshihiro Izumi
- Medical Institute of Bioregulation, Kyusyu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takeshi Azuma
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Takeshi Bamba
- Medical Institute of Bioregulation, Kyusyu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Masaru Yoshida
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
- Division of Metabolomics Research, Department of Internal Related, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
- AMED-CREST, AMED, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
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105
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Linder C, Wide K, Walander M, Beck O, Gustafsson LL, Pohanka A. Comparison between dried blood spot and plasma sampling for therapeutic drug monitoring of antiepileptic drugs in children with epilepsy: A step towards home sampling. Clin Biochem 2017; 50:418-424. [DOI: 10.1016/j.clinbiochem.2016.12.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/12/2016] [Accepted: 12/22/2016] [Indexed: 01/23/2023]
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106
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Fernandes SC, Walz JA, Wilson DJ, Brooks JC, Mace CR. Beyond Wicking: Expanding the Role of Patterned Paper as the Foundation for an Analytical Platform. Anal Chem 2017; 89:5654-5664. [PMID: 28406607 DOI: 10.1021/acs.analchem.6b03860] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
While a number of assays for soluble analytes have been developed using paper-based microfluidic devices, the detection and analysis of blood cells has remained an outstanding challenge. In this Feature, we discuss how the properties of paper determine the performance of paper-based microfluidic devices and permit the design of cellular assays, which can ultimately impact disparities in healthcare that exist in limited-resource settings.
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Affiliation(s)
- Syrena C Fernandes
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Jenna A Walz
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Daniel J Wilson
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Jessica C Brooks
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Charles R Mace
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
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107
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Ozcan S, Cooper JD, Lago SG, Kenny D, Rustogi N, Stocki P, Bahn S. Towards reproducible MRM based biomarker discovery using dried blood spots. Sci Rep 2017; 7:45178. [PMID: 28345601 PMCID: PMC5366927 DOI: 10.1038/srep45178] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 02/17/2017] [Indexed: 12/14/2022] Open
Abstract
There is an increasing interest in the use of dried blood spot (DBS) sampling and multiple reaction monitoring in proteomics. Although several groups have explored the utility of DBS by focusing on protein detection, the reproducibility of the approach and whether it can be used for biomarker discovery in high throughput studies is yet to be determined. We assessed the reproducibility of multiplexed targeted protein measurements in DBS compared to serum. Eighty-two medium to high abundance proteins were monitored in a number of technical and biological replicates. Importantly, as part of the data analysis, several statistical quality control approaches were evaluated to detect inaccurate transitions. After implementing statistical quality control measures, the median CV on the original scale for all detected peptides in DBS was 13.2% and in Serum 8.8%. We also found a strong correlation (r = 0.72) between relative peptide abundance measured in DBS and serum. The combination of minimally invasive sample collection with a highly specific and sensitive mass spectrometry (MS) technique allows for targeted quantification of multiple proteins in a single MS run. This approach has the potential to fundamentally change clinical proteomics and personalized medicine by facilitating large-scale studies.
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Affiliation(s)
- Sureyya Ozcan
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
| | - Jason D Cooper
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
| | - Santiago G Lago
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
| | - Diarmuid Kenny
- Department of Chemical Engineering and Biotechnology, Psynova Neurotech Ltd, Cambridge, United Kingdom
| | - Nitin Rustogi
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
| | - Pawel Stocki
- Department of Chemical Engineering and Biotechnology, Psynova Neurotech Ltd, Cambridge, United Kingdom
| | - Sabine Bahn
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
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108
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Gao F, McDaniel J, Chen EY, Rockwell HE, Drolet J, Vishnudas VK, Tolstikov V, Sarangarajan R, Narain NR, Kiebish MA. Dynamic and temporal assessment of human dried blood spot MS/MS ALL shotgun lipidomics analysis. Nutr Metab (Lond) 2017; 14:28. [PMID: 28344632 PMCID: PMC5360027 DOI: 10.1186/s12986-017-0182-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 03/13/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Real-time and dynamic assessment of an individual's lipid homeostatic state in blood is complicated due to the need to collect samples in a clinical environment. In the context of precision medicine and population health, tools that facilitate sample collection and empower the individual to participate in the process are necessary to complement advanced bioanalytical analysis. The dried blood spot (DBS) methodology via finger prick or heel prick is a minimally invasive sample collection method that allows the relative ease and low cost of sample collection as well as transport. However, it has yet to be integrated into broad scale personalized lipidomic analysis. Therefore, in this study we report the development of a novel DBS high resolution MS/MSALL lipidomics workflow. METHODS In this report we compared lipidomic analysis of four types of blood sample collection methods (DBS, venous whole blood, serum, and plasma) across several parameters, which include lipidomics coverage of each matrix and the effects of temperature and time on the coverage and stability of different lipid classes and molecular species. The novel DBS-MS/MSALL lipidomics platform developed in this report was then applied to examine postprandial effects on the blood lipidome and further to explore the temporal fluctuation of the lipidome across hours and days. RESULTS More than 1,200 lipid molecular species from a single DBS sample were identified and quantified. The lipidomics profile of the DBS samples is comparable to whole blood matrix. DBS-MS/MSALL lipidomic analysis in postprandial experiments revealed significant alterations in triacylglyceride species. Temporal analysis of the lipidome at various times in the day and across days identified several lipid species that fluctuate as a function of time, and a subset of lipid species were identified to be significantly altered across hours within a day and within successive days of the week. CONCLUSIONS A novel DBS-MS/MSALL lipidomics method has been established for human blood. The feasibility and application of this method demonstrate the potential utility for lipidomics analysis in both healthy and diverse diseases states. This DBS MS-based lipidomics analysis represents a formidable approach for empowering patients and individuals in the era of precision medicine to uncover novel biomarkers and to monitor lipid homeostasis.
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Affiliation(s)
- Fei Gao
- BERG, LLC, 500 Old Connecticut Path, Bldg B, 3rd Floor, Framingham, MA 01701 USA
| | - Justice McDaniel
- BERG, LLC, 500 Old Connecticut Path, Bldg B, 3rd Floor, Framingham, MA 01701 USA
| | - Emily Y. Chen
- BERG, LLC, 500 Old Connecticut Path, Bldg B, 3rd Floor, Framingham, MA 01701 USA
| | - Hannah E. Rockwell
- BERG, LLC, 500 Old Connecticut Path, Bldg B, 3rd Floor, Framingham, MA 01701 USA
| | - Jeremy Drolet
- BERG, LLC, 500 Old Connecticut Path, Bldg B, 3rd Floor, Framingham, MA 01701 USA
| | - Vivek K. Vishnudas
- BERG, LLC, 500 Old Connecticut Path, Bldg B, 3rd Floor, Framingham, MA 01701 USA
| | - Vladimir Tolstikov
- BERG, LLC, 500 Old Connecticut Path, Bldg B, 3rd Floor, Framingham, MA 01701 USA
| | | | - Niven R. Narain
- BERG, LLC, 500 Old Connecticut Path, Bldg B, 3rd Floor, Framingham, MA 01701 USA
| | - Michael A. Kiebish
- BERG, LLC, 500 Old Connecticut Path, Bldg B, 3rd Floor, Framingham, MA 01701 USA
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109
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Saushkin NY, Samsonova JV, Osipov AP, Kondakov SE, Khammadov NI, Usoltsev KV, Makaev KZ, Chernov AN. Comparison of PCR and ELISA methods for the detection of bovine leucosis in dried blood spots. ACTA ACUST UNITED AC 2017. [DOI: 10.3103/s0027131416050084] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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110
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Wouters B, Dapic I, Valkenburg TS, Wouters S, Niezen L, Eeltink S, Corthals GL, Schoenmakers PJ. A cyclic-olefin-copolymer microfluidic immobilized-enzyme reactor for rapid digestion of proteins from dried blood spots. J Chromatogr A 2017; 1491:36-42. [DOI: 10.1016/j.chroma.2017.01.078] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 01/19/2017] [Accepted: 01/27/2017] [Indexed: 11/27/2022]
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111
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Wang S, Elliott GD. Synergistic Development of Biochips and Cell Preservation Methodologies: A Tale of Converging Technologies. CURRENT STEM CELL REPORTS 2017; 3:45-53. [PMID: 28966905 DOI: 10.1007/s40778-017-0074-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
PURPOSE OF THE REVIEW Over the past several decades, cryopreservation has been widely used to preserve cells during long term storage, but advances in stem cell therapies, regenerative medicine, and miniaturized cell-based diagnostics and sensors are providing new targets of opportunity for advancing preservation methodologies. The advent of microfluidics-based devices is an interesting case in which the technology has been used to improve preservation processing, but as the devices have evolved to also include cells, tissues, and simulated organs as part of the architecture, the biochip itself is a desirable target for preservation. In this review, we will focus on the synergistic co-development of preservation methods and biochip technologies, while identifying where the challenges and opportunities lie in developing methods to place on-chip biologics on the shelf, ready for use. RECENT FINDINGS Emerging studies are demonstrating that the cost of some biochips have been reduced to the extent that they will have high utility in point-of-care settings, especially in low resource environments where diagnostic capabilities are limited. Ice-free low temperature vitrification and anhydrous vitrification technologies will likely emerge as the preferred strategy for long-term preservation of bio-chips. SUMMARY The development of preservation methodologies for partially or fully assembled biochips would enable the widespread distribution of these technologies and enhance their application.
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Affiliation(s)
- Shangping Wang
- Department of Mechanical Engineering and Engineering Sciences, University of North Carolina at Charlotte, Charlotte, NC 28223
| | - Gloria D Elliott
- Department of Mechanical Engineering and Engineering Sciences, University of North Carolina at Charlotte, Charlotte, NC 28223
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112
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Shaner RL, Schulze ND, Seymour C, Hamelin EI, Thomas JD, Johnson RC. Quantitation of Fentanyl Analogs in Dried Blood Spots by Flow-Through Desorption Coupled to Online Solid Phase Extraction Tandem Mass Spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2017; 9:3876-3883. [PMID: 29181095 PMCID: PMC5701286 DOI: 10.1039/c7ay00532f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
An automated dried blood spot (DBS) elution coupled with solid phase extraction and tandem mass spectrometric analysis for multiple fentanyl analogs was developed and assessed. This method confirms human exposures to fentanyl, sufentanil, carfentanil, alfentanil, lofentanil, α-methyl fentanyl, and 3-methyl fentanyl in blood with minimal sample volume and reduced shipping and storage costs. Seven fentanyl analogs were detected and quantitated from DBS made from venous blood. The calibration curve in matrix was linear in the concentration range of 1.0 ng/mL to 100 ng/mL with a correlation coefficient greater than 0.98 for all compounds. The limit of detection varied from 0.15 ng/mL to 0.66 ng/mL depending on target analyte. Analysis of the entire DBS minimized the effects of hematocrit on quantitation. All quality control materials evaluated resulted in <15% error; analytes with isotopically labeled internal standards had <15% RSD, while analytes without matching standards had 15-24% RSD. This method provides an automated means to detect seven fentanyl analogs, and quantitate four fentanyl analogs with the benefits of DBS at levels anticipated from an overdose of these potent opioids.
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Affiliation(s)
- Rebecca L Shaner
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS F44, Atlanta, GA 30341
| | - Nicholas D Schulze
- ORISE Fellow, Centers for Disease Control and Prevention, National Center for Environmental Health, Division of Laboratory Sciences, Atlanta, GA 30341
| | - Craig Seymour
- ORISE Fellow, Centers for Disease Control and Prevention, National Center for Environmental Health, Division of Laboratory Sciences, Atlanta, GA 30341
| | - Elizabeth I Hamelin
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS F44, Atlanta, GA 30341
| | - Jerry D Thomas
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS F44, Atlanta, GA 30341
| | - Rudolph C Johnson
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS F44, Atlanta, GA 30341
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113
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Dried blood spot analysis of gabapentin as a valid alternative for serum: a bridging study. J Pharm Biomed Anal 2017; 132:72-76. [DOI: 10.1016/j.jpba.2016.09.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/09/2016] [Accepted: 09/24/2016] [Indexed: 12/15/2022]
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114
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Chen HJC, Fan CH, Yang YF. Stability and Application of Reactive Nitrogen and Oxygen Species-Induced Hemoglobin Modifications in Dry Blood Spots As Analyzed by Liquid Chromatography Tandem Mass Spectrometry. Chem Res Toxicol 2016; 29:2157-2163. [DOI: 10.1021/acs.chemrestox.6b00334] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Hauh-Jyun Candy Chen
- Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Ming-Hsiung, Chia-Yi 62142, Taiwan
| | - Chih-Huang Fan
- Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Ming-Hsiung, Chia-Yi 62142, Taiwan
| | - Ya-Fen Yang
- Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Ming-Hsiung, Chia-Yi 62142, Taiwan
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115
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Simmons KM, Alkanani AK, McDaniel KA, Goyne C, Miao D, Zhao Z, Yu L, Michels AW. Islet Autoantibody Measurements from Dried Blood Spots on Filter Paper Strongly Correlate to Serum Levels. PLoS One 2016; 11:e0166213. [PMID: 27846247 PMCID: PMC5112938 DOI: 10.1371/journal.pone.0166213] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 10/19/2016] [Indexed: 01/13/2023] Open
Abstract
Type 1 diabetes (T1D) is increasing in incidence and predictable with measurement of serum islet autoantibodies (iAb) years prior to clinical disease onset. Identifying iAb positive individuals reduces diabetic ketoacidosis and identifies individuals for T1D prevention trials. However, large scale screening for iAb remains challenging as assays have varying sensitivities and specificities, insulin autoantibodies remain difficult to measure and venipuncture is generally required to obtain serum. We developed an approach to reliably measure all four major iAb, including insulin autoantibodies, from dried blood spots (DBS) on filter-paper. By spiking iAb positive serum into iAb negative whole blood in a dose titration, we optimized the conditions for autoantibody elution from filter paper as measured by fluid phase radioimmunoassays. After assessing stability of measuring iAb from DBS over time, we then screened iAb from DBS and the corresponding serum in new-onset T1D (n = 52), and controls (n = 72) which included first-degree relatives of T1D patients. iAb measured from eluted DBS in new-onset T1D strongly correlated with serum measurements (R2 = 0.96 for mIAA, GADA = 0.94, IA-2A = 0.85, ZnT8A = 0.82, p<0.01 for each autoantibody). There were no false positives in control subjects, and 5/6 with previously unknown iAb positivity in sera were detected using DBS. With further validation, measuring iAb from DBS can be a reliable method to screen for T1D risk.
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Affiliation(s)
- Kimber M. Simmons
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Aurora, CO, 80045, United States of America
- * E-mail:
| | - Aimon K. Alkanani
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Aurora, CO, 80045, United States of America
| | - Kristen A. McDaniel
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Aurora, CO, 80045, United States of America
| | - Christopher Goyne
- Indiana University School of Medicine, Indianapolis, IN, 46202, United States of America
| | - Dongmei Miao
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Aurora, CO, 80045, United States of America
| | - Zhiyuan Zhao
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Aurora, CO, 80045, United States of America
| | - Liping Yu
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Aurora, CO, 80045, United States of America
| | - Aaron W. Michels
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Aurora, CO, 80045, United States of America
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116
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Comparison of paper spray mass spectrometry analysis of dried blood spots from devices used for in-field collection of clinical samples. Anal Bioanal Chem 2016; 409:121-131. [DOI: 10.1007/s00216-016-9954-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 09/08/2016] [Accepted: 09/16/2016] [Indexed: 12/18/2022]
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117
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Enderle Y, Foerster K, Burhenne J. Clinical feasibility of dried blood spots: Analytics, validation, and applications. J Pharm Biomed Anal 2016; 130:231-243. [DOI: 10.1016/j.jpba.2016.06.026] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 06/17/2016] [Accepted: 06/18/2016] [Indexed: 01/12/2023]
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118
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Bolea-Fernandez E, Phan K, Balcaen L, Resano M, Vanhaecke F. Determination of ultra-trace amounts of prosthesis-related metals in whole blood using volumetric absorptive micro-sampling and tandem ICP – Mass spectrometry. Anal Chim Acta 2016; 941:1-9. [DOI: 10.1016/j.aca.2016.08.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/17/2016] [Accepted: 08/18/2016] [Indexed: 12/20/2022]
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119
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Elmongy H, Abdel-Rehim M. Saliva as an alternative specimen to plasma for drug bioanalysis: A review. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.07.010] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Duthaler U, Sayasone S, Vanobbergen F, Penny MA, Odermatt P, Huwyler J, Keiser J. Single-Ascending-Dose Pharmacokinetic Study of Tribendimidine in Opisthorchis viverrini-Infected Patients. Antimicrob Agents Chemother 2016; 60:5705-15. [PMID: 27431234 PMCID: PMC5038241 DOI: 10.1128/aac.00992-16] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 07/12/2016] [Indexed: 01/27/2023] Open
Abstract
Praziquantel is the only drug available for the treatment of Opisthorchis viverrini infections. Tribendimidine has emerged as a potential treatment alternative; however, its pharmacokinetic (PK) properties have not been sufficiently studied to date. Via two phase IIa dose-finding studies, 68 O. viverrini patients were treated with 25- to 600-mg doses of tribendimidine using 50- and 200-mg tablet formulations. Plasma, blood, and dried blood spots (DBS) were sampled at selected time points. The two main metabolites of tribendimidine, active deacetylated amidantel (dADT) and acetylated dADT (adADT), were analyzed in plasma, blood, and DBS. PK parameters were estimated by noncompartmental analysis. An acceptable agreement among plasma and DBS concentrations was observed, with a mean bias of ≤10%, and 60% dADT and 74% adADT concentrations being within ±20% margins. We found that 200-mg tribendimidine tablets possess immediate floating characteristics, which led to variable time to maximal concentration of drug (Tmax) values (2 to 24 h) between individuals. Dose proportionality was observed for dADT from 25 to 200 mg using 50-mg tablets, but at higher dosages (200 to 600 mg), saturation occurred. The median ratio of the area under the plasma concentration-time curve from 0 to 24 h (AUC0-24) of dADT to the AUC0- 24 of adADT ranged from 0.8 to 26.4, suggesting substantial differences in acetylation rates. Cure rates ranged from 11% (25-mg dose) to 100% (400-mg dose). Cured patients showed significantly higher dADT maximal serum concentrations (Cmax) and AUC0-24 values than uncured patients. Tribendimidine is a promising drug for the treatment of opisthorchiasis. However, the tablet formulation should be optimized to achieve consistent absorption among patients. Further studies are warranted to assess the large differences between individuals in the rate of metabolic turnover of dADT to adADT. (This study has been registered with the ISRCTN Registry under no. ISRCTN96948551.).
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Affiliation(s)
- Urs Duthaler
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Somphou Sayasone
- National Institute of Public Health, Ministry of Health, Vientiane, Lao People's Democratic Republic
| | - Fiona Vanobbergen
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Melissa A Penny
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Peter Odermatt
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Jörg Huwyler
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Basel, Switzerland
| | - Jennifer Keiser
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
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121
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Saushkin NY, Samsonova JV, Osipov AP, Kondakov CE, Efimova MA, Chernov AN. A new sampling format for the diagnostics of bovine infectious diseases in dried blood spots by ELISA. ACTA ACUST UNITED AC 2016. [DOI: 10.3103/s0027131416040088] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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122
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Microwave-assisted on-spot derivatization for gas chromatography–mass spectrometry based determination of polar low molecular weight compounds in dried blood spots. J Chromatogr A 2016; 1465:175-83. [DOI: 10.1016/j.chroma.2016.08.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/23/2016] [Accepted: 08/25/2016] [Indexed: 12/26/2022]
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123
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Long SE, Catron BL, Boggs AS, Tai SS, Wise SA. Development of Standard Reference Materials to support assessment of iodine status for nutritional and public health purposes. Am J Clin Nutr 2016; 104 Suppl 3:902S-6S. [PMID: 27534629 PMCID: PMC5004495 DOI: 10.3945/ajcn.115.110361] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The use of urinary iodine as an indicator of iodine status relies in part on the accuracy of the analytical measurement of iodine in urine. Likewise, the use of dietary iodine intake as an indicator of iodine status relies in part on the accuracy of the analytical measurement of iodine in dietary sources, including foods and dietary supplements. Similarly, the use of specific serum biomarkers of thyroid function to screen for both iodine deficiency and iodine excess relies in part on the accuracy of the analytical measurement of those biomarkers. The National Institute of Standards and Technology has been working with the NIH Office of Dietary Supplements for several years to develop higher-order reference measurement procedures and Standard Reference Materials to support the validation of new routine analytical methods for iodine in foods and dietary supplements, for urinary iodine, and for several serum biomarkers of thyroid function including thyroid-stimulating hormone, thyroglobulin, total and free thyroxine, and total and free triiodothyronine. These materials and methods have the potential to improve the assessment of iodine status and thyroid function in observational studies and clinical trials, thereby promoting public health efforts related to iodine nutrition.
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Affiliation(s)
- Stephen E Long
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, Charleston, SC, and
| | - Brittany L Catron
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, Charleston, SC, and
| | - Ashley Sp Boggs
- Chemical Sciences Division, Material Measurement Laboratory, National Institute of Standards and Technology, Charleston, SC, and
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124
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Chao TC, Arjmandi-Tash O, Das DB, Starov VM. Simultaneous spreading and imbibition of blood droplets over porous substrates in the case of partial wetting. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.10.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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125
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Wang X, Zheng Y, Wang T, Yang H, Bai Z, Zhang Z. Catalyst Coated Paper Substrate Strategy: Development and Its Application for Copper-Catalysts Screening and Activity Studies. ChemistrySelect 2016. [DOI: 10.1002/slct.201600518] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xuan Wang
- School of Chemistry and Chemical Engineering; Xi'an Shiyou Unviersity; Xi'an 710065 China
| | - Yajun Zheng
- School of Chemistry and Chemical Engineering; Xi'an Shiyou Unviersity; Xi'an 710065 China
| | - Teng Wang
- School of Chemistry and Chemical Engineering; Xi'an Shiyou Unviersity; Xi'an 710065 China
| | - Haijun Yang
- Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Zongquan Bai
- School of Chemistry and Chemical Engineering; Xi'an Shiyou Unviersity; Xi'an 710065 China
| | - Zhiping Zhang
- School of Chemistry and Chemical Engineering; Xi'an Shiyou Unviersity; Xi'an 710065 China
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126
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Zheng Y, Wang Q, Wang X, Chen Y, Wang X, Zhang X, Bai Z, Han X, Zhang Z. Development and Application of Zirconia Coated Paper Substrate for High Sensitivity Analysis of Therapeutic Drugs in Dried Blood Spots. Anal Chem 2016; 88:7005-13. [DOI: 10.1021/acs.analchem.5b04732] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yajun Zheng
- School of Chemistry
and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China
| | - Qian Wang
- School of Chemistry
and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China
| | - Xiaoting Wang
- School of Chemistry
and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China
| | - Ying Chen
- Clinical
Analysis Laboratory, Xi’an Mental Health Center, Xi’an 710061, China
| | - Xuan Wang
- School of Chemistry
and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China
| | - Xiaoling Zhang
- School of Chemistry
and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China
| | - Zongquan Bai
- School of Chemistry
and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China
| | - Xiaoxiao Han
- School of Chemistry
and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China
| | - Zhiping Zhang
- School of Chemistry
and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China
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127
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Antunes MV, Charão MF, Linden R. Dried blood spots analysis with mass spectrometry: Potentials and pitfalls in therapeutic drug monitoring. Clin Biochem 2016; 49:1035-46. [PMID: 27179588 DOI: 10.1016/j.clinbiochem.2016.05.004] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 05/05/2016] [Accepted: 05/08/2016] [Indexed: 01/13/2023]
Abstract
Therapeutic drug monitoring (TDM) relays in the availability of specialized laboratory assays, usually available in reference centers that are not accessible to all patients. In this context, there is a growing interest in the use of dried blood spot (DBS) sampling, usually obtained from finger pricks, which allows simple and cost-effective logistics in many settings, particularly in Developing Countries. The use of DBS assays to estimate plasma concentrations is highly dependent on the hematocrit of the blood, as well as the particular characteristics of the measured analyte. DBS assays require specific validation assays, most of them are related to hematocrit effects. In the present manuscript, the application of mass spectrometric assays for determination of drugs for TDM purposes in the last ten years is reviewed, as well as the particular validation assays for new DBS methods.
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Affiliation(s)
- Marina Venzon Antunes
- Toxicological Analysis Laboratory, Instituto de Ciências da Saúde, Universidade Feevale, Novo Hamburgo, RS, Brazil
| | - Mariele Feiffer Charão
- Toxicological Analysis Laboratory, Instituto de Ciências da Saúde, Universidade Feevale, Novo Hamburgo, RS, Brazil
| | - Rafael Linden
- Toxicological Analysis Laboratory, Instituto de Ciências da Saúde, Universidade Feevale, Novo Hamburgo, RS, Brazil.
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128
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Identification and quantification of psychoactive drugs in whole blood using dried blood spot (DBS) by ultra-performance liquid chromatography tandem mass spectrometry. J Pharm Biomed Anal 2016; 128:53-60. [PMID: 27232151 DOI: 10.1016/j.jpba.2016.05.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/02/2016] [Accepted: 05/03/2016] [Indexed: 02/06/2023]
Abstract
A procedure based on ultra-high-pressure liquid chromatography tandem mass spectrometry has been developed for the determination of twenty three psychoactive drugs and metabolites in whole blood using dried blood spot (DBS). Chromatographic separation was achieved at ambient temperature using a reverse-phase column and a linear gradient elution with two solvents: 0.1% formic acid in acetonitrile and 5mM ammonium formate at pH 3. The mass spectrometer was operated in positive ion mode, using multiple reaction monitoring via positive electro-spray ionization. The method was linear from the limit of quantification (5ng/ml for all the analytes apart from 15ng/ml for Δ-9-tetrahydrocannabinol and metabolites) to 500ng/ml, and showed good correlation coefficients (r(2)=0.990) for all substances. Analytical recovery of analytes under investigation was always higher than 75% and intra-assay and inter-assay precision and accuracy always better than 15%. Using the validated method, ten DBS samples, collected at the hospital emergency department in cases of acute drug intoxication, were found positive to one or more psychoactive drugs. Our data support the potential of DBS sampling for non invasive monitoring of exposure/intoxication to psychoactive drugs.
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129
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Evaluation of water-soluble DBS for small proteins: a conceptual study using insulin as a model analyte. Bioanalysis 2016; 8:1051-65. [DOI: 10.4155/bio-2016-0002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Aim: Water-soluble sampling materials for DBS have been introduced to solve some of the common challenges of DBS. Methodology: Carboxymethyl cellulose (CMC) as water-soluble material was evaluated for small proteins using insulin as model analyte. 15 µl of whole blood was deposited and dried on a sheet of CMC prior to dissolvation of the whole spot, matrix precipitation with acetonitrile and LC–MS/MS analysis. Results: CMC was shown to promote matrix precipitation resulting in cleaner extracts than precipitation without CMC present. The recovery of insulin from the spot was 68 ± 4%, and the spotted samples were stable for at least 1 week in room temperature. Conclusion: Water-soluble DBS showed promising performance also in analysis of small proteins.
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130
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Meister I, Kovac J, Duthaler U, Odermatt P, Huwyler J, Vanobberghen F, Sayasone S, Keiser J. Pharmacokinetic Study of Praziquantel Enantiomers and Its Main Metabolite R-trans-4-OH-PZQ in Plasma, Blood and Dried Blood Spots in Opisthorchis viverrini-Infected Patients. PLoS Negl Trop Dis 2016; 10:e0004700. [PMID: 27152952 PMCID: PMC4859549 DOI: 10.1371/journal.pntd.0004700] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 04/18/2016] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Praziquantel (PZQ) is the treatment of choice for infections with the liver fluke Opisthorchis viverrini, a major health problem in Southeast Asia. However, pharmacokinetic (PK) studies investigating the disposition of PZQ enantiomers (R- and S-PZQ) and its main metabolite, R-trans-4-OH-PZQ, in diseased patients are lacking. The implementation of a dried blood spot (DBS) sampling technique would ease the performance of PK studies in remote areas without clinical facilities. The aim of the present study is to provide data on the disposition of PZQ enantiomers and R-trans-4-OH-PZQ in opisthorchiasis patients and to validate the use of DBS compared to plasma and blood sampling. METHODOLOGY/PRINCIPAL FINDINGS PZQ was administered to nine O. viverrini-infected patients at 3 oral doses of 25 mg/kg in 4 h intervals. Plasma, blood and DBS were simultaneously collected at selected time points from 0 to 24 h post-treatment. PK parameters were determined using non-compartmental analysis. Drug concentrations and areas under the curve (AUC0-24h) measured in the 3 matrices were compared using Bland-Altman analysis. We observed plasma AUC0-24hs of 1.1, 9.0 and 188.7 μg/ml*h and half-lives of 1.1, 3.3 and 6.4 h for R-PZQ, S-PZQ and R-trans-4-OH, respectively. Maximal plasma concentrations (Cmax) of 0.2, 0.9 and 13.9 μg/ml for R-PZQ, S-PQZ and R-trans-4-OH peaked at 7 h for PZQ enantiomers and at 8.7 h for the metabolite. Individual drug concentration measurements and patient AUC0-24hs displayed ratios of blood or DBS versus plasma between 79-94% for R- and S-PZQ, and between 108-122% for R-trans-4-OH. CONCLUSIONS/SIGNIFICANCE Pharmacodynamic (PD) in vitro studies on PZQ enantiomers and R-trans-4-OH-PZQ are necessary to be able to correlate PK parameters with efficacy. DBS appears to be a valid alternative to conventional venous sampling for PK studies in PZQ-treated patients.
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Affiliation(s)
- Isabel Meister
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Jana Kovac
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Urs Duthaler
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Peter Odermatt
- University of Basel, Basel, Switzerland
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - Jörg Huwyler
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Basel, Switzerland
| | - Fiona Vanobberghen
- University of Basel, Basel, Switzerland
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - Somphou Sayasone
- National Institute of Public Health, Ministry of Health, Vientiane, Lao People’s Democratic Republic
| | - Jennifer Keiser
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
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131
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Tretzel L, Thomas A, Piper T, Hedeland M, Geyer H, Schänzer W, Thevis M. Fully automated determination of nicotine and its major metabolites in whole blood by means of a DBS online-SPE LC-HR-MS/MS approach for sports drug testing. J Pharm Biomed Anal 2016; 123:132-40. [DOI: 10.1016/j.jpba.2016.02.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 02/05/2016] [Accepted: 02/08/2016] [Indexed: 01/06/2023]
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132
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Yeung EH, Louis GB, Lawrence D, Kannan K, McLain AC, Caggana M, Druschel C, Bell E. Eliciting parental support for the use of newborn blood spots for pediatric research. BMC Med Res Methodol 2016; 16:14. [PMID: 26846420 PMCID: PMC4741027 DOI: 10.1186/s12874-016-0120-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 02/02/2016] [Indexed: 11/18/2022] Open
Abstract
Background Biomarkers of exposures such as infection or environmental chemicals can be measured in small volumes of blood extracted from newborn dried blood spots (DBS) underscoring their potential utility for population-based research. However, few studies have evaluated the feasibility and utility of this resource; particularly the factors associated with parental consent, and the ability to retrieve banked samples with sufficient remaining volume for epidemiologic research. Methods At 8 months postpartum, 5,034 mothers of infants born (2008–2010) in New York (57 counties excluding New York City) were asked to consent for the use of residual DBS for the quantification of cytokines and environmental chemicals. Mothers were part of the Upstate KIDS study, a longitudinal birth cohort designed to evaluate child development through 3 years of age. Information on parental and infant characteristics was obtained from birth certificates and maternal report at 4 months postpartum. Multivariate logistic regression was used to identify factors associated with parental consent and with successful retrieval of DBS. Results Sixty-two percent (n = 3125) of parents consented. Factors significantly associated with consent included non-Hispanic ethnicity (odds ratio 2.04; 95 % CI: 1.43–2.94), parity (1.29; 1.05–1.57), maternal obesity (1.42; 1.11–1.80) and reported alcohol use during pregnancy (1.51; 1.12–2.06). However, these associations corresponded to small absolute differences in proportions (4 to 8 %), suggesting that the two groups remained comparable. Infant characteristics such as preterm delivery did not significantly differ by consent status among singletons and only ventilator use (OR 2.39; 95 % CI: 1.06–5.41) remained borderline significant among twins in adjusted analyses. Among consented infants, 99 % had at least one 3.2 mm punch successfully retrieved for biomarker analyses and 84 % had a full DBS circle available. Conclusion Parental characteristics varied slightly by consent, and the availability of samples for research purposes was high, demonstrating the feasibility of this resource for population based research.
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Affiliation(s)
- Edwina H Yeung
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6100 Executive Blvd, 7B03, Rockville, MD, 20852, USA.
| | - Germaine Buck Louis
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6100 Executive Blvd, 7B03, Rockville, MD, 20852, USA
| | - David Lawrence
- Laboratory of Immunology, Wadsworth Center, Center for Medical Science, Albany, NY, 12203, USA.,Department of Environmental Health Sciences, University at Albany School of Public Health, Albany, USA
| | - Kurunthachalam Kannan
- Laboratory of Organic Analytical Chemistry, Wadsworth Center, New York State Department of Health, Albany, NY, 12203, USA.,Department of Environmental Health Sciences, University at Albany School of Public Health, Albany, USA
| | - Alexander C McLain
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, Columbia, SC, USA
| | - Michele Caggana
- Laboratory of Human Genetics, Wadsworth Center, New York State Department of Health, Albany, NY, 12203, USA
| | - Charlotte Druschel
- Bureau of Environmental and Occupational Epidemiology, Center for Environmental Health, New York State Department of Health, Albany, NY, 12203, USA.,Department of Epidemiology and Biostatistics, University at Albany School of Public Health, Albany, NY, 12144, USA
| | - Erin Bell
- Department of Environmental Health Sciences, University at Albany School of Public Health, Albany, USA.,Department of Epidemiology and Biostatistics, University at Albany School of Public Health, Albany, NY, 12144, USA
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133
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Damon DE, Davis KM, Moreira CR, Capone P, Cruttenden R, Badu-Tawiah AK. Direct Biofluid Analysis Using Hydrophobic Paper Spray Mass Spectrometry. Anal Chem 2016; 88:1878-84. [DOI: 10.1021/acs.analchem.5b04278] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Deidre E. Damon
- Department of Chemistry and
Biochemistry, The Ohio State University, Columbus, Ohio 43110, United States
| | - Kathryn M. Davis
- Department of Chemistry and
Biochemistry, The Ohio State University, Columbus, Ohio 43110, United States
| | - Camila R. Moreira
- Department of Chemistry and
Biochemistry, The Ohio State University, Columbus, Ohio 43110, United States
| | - Patricia Capone
- Department of Chemistry and
Biochemistry, The Ohio State University, Columbus, Ohio 43110, United States
| | - Riley Cruttenden
- Department of Chemistry and
Biochemistry, The Ohio State University, Columbus, Ohio 43110, United States
| | - Abraham K. Badu-Tawiah
- Department of Chemistry and
Biochemistry, The Ohio State University, Columbus, Ohio 43110, United States
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134
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Lappas NT, Lappas CM. Sample Handling. Forensic Toxicol 2016. [DOI: 10.1016/b978-0-12-799967-8.00006-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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135
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Damon DE, Maher YS, Yin M, Jjunju FPM, Young IS, Taylor S, Maher S, Badu-Tawiah AK. 2D wax-printed paper substrates with extended solvent supply capabilities allow enhanced ion signal in paper spray ionization. Analyst 2016; 141:3866-73. [DOI: 10.1039/c6an00168h] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Paper-based microfluidic channels were created from solid wax printing, and the resultant 2D wax-printed paper substrates were used for paper spray (PS) mass spectrometry (MS) analysis of small organic compounds.
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Affiliation(s)
- Deidre E. Damon
- Department of Chemistry and Biochemistry
- The Ohio State University
- Columbus
- USA
| | - Yosef S. Maher
- Department of Chemistry and Biochemistry
- The Ohio State University
- Columbus
- USA
| | - Mengzhen Yin
- Department of Chemistry and Biochemistry
- The Ohio State University
- Columbus
- USA
| | - Fred P. M. Jjunju
- Department of Electrical Engineering and Electronics
- University of Liverpool
- UK
| | - Iain S. Young
- Institute of Integrative Biology
- University of Liverpool
- UK
| | - Stephen Taylor
- Department of Electrical Engineering and Electronics
- University of Liverpool
- UK
| | - Simon Maher
- Department of Electrical Engineering and Electronics
- University of Liverpool
- UK
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136
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Numako M, Takayama T, Noge I, Kitagawa Y, Todoroki K, Mizuno H, Min JZ, Toyo’oka T. Dried Saliva Spot (DSS) as a Convenient and Reliable Sampling for Bioanalysis: An Application for the Diagnosis of Diabetes Mellitus. Anal Chem 2015; 88:635-9. [DOI: 10.1021/acs.analchem.5b04059] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Masahiro Numako
- Laboratory
of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Takahiro Takayama
- Laboratory
of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Ichiro Noge
- Department
of Pharmaceuticals, Numazu City Hospital, Harunoki, Higashi-Shiizi, Numazu 410-0302, Japan
| | - Yutaka Kitagawa
- Department
of Clinical and Molecular Endocrinology, Numazu City Hospital, Harunoki, Higashi-Shiizi, Numazu 401-0302, Japan
| | - Kenichiro Todoroki
- Laboratory
of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hajime Mizuno
- Laboratory
of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Jun Zhe Min
- Laboratory
of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Toshimasa Toyo’oka
- Laboratory
of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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137
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Kopp M, Rychlik M. Quantitation of 5-Methyltetrahydrofolic Acid in Dried Blood Spots and Dried Plasma Spots by Stable Isotope Dilution Assays. PLoS One 2015; 10:e0143639. [PMID: 26605791 PMCID: PMC4659665 DOI: 10.1371/journal.pone.0143639] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 11/07/2015] [Indexed: 01/24/2023] Open
Abstract
Because of minimal data available on folate analysis in dried matrix spots (DMSs), we combined the advantages of stable isotope dilution assays followed by LC-MS/MS analysis with DMS sampling to develop a reliable method for the quantitation of plasma 5-methyltetrahydrofolic acid in dried blood spots (DBSs) and dried plasma spots (DPSs) as well as for the quantitation of whole blood 5-methyltetrahydrofolic acid in DBSs. We focused on two diagnostically conclusive parameters exhibited by the plasma and whole blood 5-methyltetrahydrofolic acid levels that reflect both temporary and long-term folate status. The method is performed using the [2H4]-labeled isotopologue of the vitamin as the internal standard, and three steps are required for the extraction procedure. Elution of the punched out matrix spots was performed using stabilization buffer including Triton X-100 in a standardized ultrasonication treatment followed by enzymatic digestion (whole blood only) and solid-phase extraction with SAX cartridges. This method is sensitive enough to quantify 27 nmol/L whole blood 5-methyltetrahydrofolic acid in DBSs and 6.3 and 4.4 nmol/L plasma 5-methyltetrahydrofolic acid in DBSs and DPSs, respectively. The unprecedented accurate quantification of plasma 5-methyltetrahydrofolic acid in DBSs was achieved by thermal treatment prior to ultrasonication, inhibiting plasma conjugase activity. Mass screenings are more feasible and easier to facilitate for this method in terms of sample collection and storage compared with conventional clinical sampling for the assessment of folate status.
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Affiliation(s)
- Markus Kopp
- Chair for Analytical Food Chemistry, Technische Universität München, Freising, Germany.,Research Center for Nutrition and Food Science, Technische Universität München, Freising, Germany
| | - Michael Rychlik
- Chair for Analytical Food Chemistry, Technische Universität München, Freising, Germany
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138
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Application of dried blood spots to determine vitamin D status in a large nutritional study with unsupervised sampling: the Food4Me project. Br J Nutr 2015; 115:202-11. [DOI: 10.1017/s0007114515004298] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractAn efficient and robust method to measure vitamin D (25-hydroxy vitamin D3(25(OH)D3) and 25-hydroxy vitamin D2in dried blood spots (DBS) has been developed and applied in the pan-European multi-centre, internet-based, personalised nutrition intervention study Food4Me. The method includes calibration with blood containing endogenous 25(OH)D3, spotted as DBS and corrected for haematocrit content. The methodology was validated following international standards. The performance characteristics did not reach those of the current gold standard liquid chromatography-MS/MS in plasma for all parameters, but were found to be very suitable for status-level determination under field conditions. DBS sample quality was very high, and 3778 measurements of 25(OH)D3were obtained from 1465 participants. The study centre and the season within the study centre were very good predictors of 25(OH)D3levels (P<0·001 for each case). Seasonal effects were modelled by fitting a sine function with a minimum 25(OH)D3level on 20 January and a maximum on 21 July. The seasonal amplitude varied from centre to centre. The largest difference between winter and summer levels was found in Germany and the smallest in Poland. The model was cross-validated to determine the consistency of the predictions and the performance of the DBS method. The Pearson’s correlation between the measured values and the predicted values wasr0·65, and thesdof their differences was 21·2 nmol/l. This includes the analytical variation and the biological variation within subjects. Overall, DBS obtained by unsupervised sampling of the participants at home was a viable methodology for obtaining vitamin D status information in a large nutritional study.
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139
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Bakunina IY, Balabanova LA, Pennacchio A, Trincone A. Hooked on α-d-galactosidases: from biomedicine to enzymatic synthesis. Crit Rev Biotechnol 2015; 36:233-45. [PMID: 25394540 DOI: 10.3109/07388551.2014.949618] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
α-d-Galactosidases (EC 3.2.1.22) are enzymes employed in a number of useful bio-based applications. We have depicted a comprehensive general survey of α-d-galactosidases from different origin with special emphasis on marine example(s). The structures of natural α-galactosyl containing compounds are described. In addition to 3D structures and mechanisms of action of α-d-galactosidases, different sources, natural function and genetic regulation are also covered. Finally, hydrolytic and synthetic exploitations as free or immobilized biocatalysts are reviewed. Interest in the synthetic aspects during the next years is anticipated for access to important small molecules by green technology with an emphasis on alternative selectivity of this class of enzymes from different sources.
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Affiliation(s)
- Irina Yu Bakunina
- a G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences , Vladivostok , Russia and
| | - Larissa A Balabanova
- a G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences , Vladivostok , Russia and
| | - Angela Pennacchio
- b Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche , Pozzuoli , Napoli , Italy
| | - Antonio Trincone
- b Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche , Pozzuoli , Napoli , Italy
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140
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Chambers AG, Percy AJ, Yang J, Borchers CH. Multiple Reaction Monitoring Enables Precise Quantification of 97 Proteins in Dried Blood Spots. Mol Cell Proteomics 2015; 14:3094-104. [PMID: 26342038 DOI: 10.1074/mcp.o115.049957] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Indexed: 01/19/2023] Open
Abstract
The dried blood spot (DBS) methodology provides a minimally invasive approach to sample collection and enables room-temperature storage for most analytes. DBS samples have successfully been analyzed by liquid chromatography multiple reaction monitoring mass spectrometry (LC/MRM-MS) to quantify a large range of small molecule biomarkers and drugs; however, this strategy has only recently been explored for MS-based proteomics applications. Here we report the development of a highly multiplexed MRM assay to quantify endogenous proteins in human DBS samples. This assay uses matching stable isotope-labeled standard peptides for precise, relative quantification, and standard curves to characterize the analytical performance. A total of 169 peptides, corresponding to 97 proteins, were quantified in the final assay with an average linear dynamic range of 207-fold and an average R(2) value of 0.987. The total range of this assay spanned almost 5 orders of magnitude from serum albumin (P02768) at 18.0 mg/ml down to cholinesterase (P06276) at 190 ng/ml. The average intra-assay and inter-assay precision for 6 biological samples ranged from 6.1-7.5% CV and 9.5-11.0% CV, respectively. The majority of peptide targets were stable after 154 days at storage temperatures from -20 °C to 37 °C. Furthermore, protein concentration ratios between matching DBS and whole blood samples were largely constant (<20% CV) across six biological samples. This assay represents the highest multiplexing yet achieved for targeted protein quantification in DBS samples and is suitable for biomedical research applications.
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Affiliation(s)
- Andrew G Chambers
- From the ‡University of Victoria - Genome British Columbia Proteomics Centre, Vancouver Island Technology Park, #3101 - 4464 Markham St., Victoria, BC V8Z 7X8, Canada
| | - Andrew J Percy
- From the ‡University of Victoria - Genome British Columbia Proteomics Centre, Vancouver Island Technology Park, #3101 - 4464 Markham St., Victoria, BC V8Z 7X8, Canada
| | - Juncong Yang
- From the ‡University of Victoria - Genome British Columbia Proteomics Centre, Vancouver Island Technology Park, #3101 - 4464 Markham St., Victoria, BC V8Z 7X8, Canada
| | - Christoph H Borchers
- From the ‡University of Victoria - Genome British Columbia Proteomics Centre, Vancouver Island Technology Park, #3101 - 4464 Markham St., Victoria, BC V8Z 7X8, Canada; §Department of Biochemistry and Microbiology, University of Victoria, Petch Building Room 207, 3800 Finnerty Rd., Victoria, BC V8P 5C2, Canada
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141
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Souza-Silva ÉA, Reyes-Garcés N, Gómez-Ríos GA, Boyacı E, Bojko B, Pawliszyn J. A critical review of the state of the art of solid-phase microextraction of complex matrices III. Bioanalytical and clinical applications. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2015.04.017] [Citation(s) in RCA: 180] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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142
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Yuan L, Schuster A, Shen JX, Garrison-Borowski P, Aubry AF. Dried blood spot analysis without dilution: Application to the LC-MS/MS determination of BMS-986001 in rat dried blood spot. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1002:201-9. [PMID: 26340763 DOI: 10.1016/j.jchromb.2015.08.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 08/19/2015] [Accepted: 08/20/2015] [Indexed: 01/07/2023]
Abstract
Sample dilution is one major challenge in dried blood spot (DBS) bioanalysis. To resolve this issue, we applied a no-dilution strategy for DBS analysis by using a calibration curve with very wide linear range. We developed an LC-MS/MS DBS assay with a linear range of 5 orders of magnitude (50-5000,000ng/mL) for BMS-986001, an HIV drug under development, by simultaneously monitoring two selective reaction monitoring transitions of different intensity. The assay was validated and successfully applied to the analysis of DBS samples collected in a toxicology study in rats dosed with BMS-986001. All samples were analyzed without any dilution. We also compared the concentration data generated from the DBS method and a validated plasma assay for the same study. The two sets of data agreed well with each other, demonstrating the validity of this strategy for DBS analysis. This approach provides an effective and convenient way to eliminate complicated dilution for DBS and other sample collection techniques.
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Affiliation(s)
- Long Yuan
- Analytical and Bioanalytical Development, Bristol-Myers Squibb, Princeton, NJ 08543, USA.
| | - Alan Schuster
- Analytical and Bioanalytical Development, Bristol-Myers Squibb, Princeton, NJ 08543, USA
| | - Jim X Shen
- Analytical and Bioanalytical Development, Bristol-Myers Squibb, Princeton, NJ 08543, USA
| | | | - Anne-Françoise Aubry
- Analytical and Bioanalytical Development, Bristol-Myers Squibb, Princeton, NJ 08543, USA
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143
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Abstract
Older adults represent a substantial number of the world population, which is set to grow considerably in the coming years. The health challenges faced by the older adults are unique. Several age-related changes in them make phlebotomy difficult. Application of dried blood has been demonstrated to be useful in the other similarly vulnerable population, the neonates. Similar approach of standardization and demonstration of use of dried blood spots (DBS) for analytes of interest in older adult population would be highly appreciated. There are very few reports of use of DBS in older adults. There are several potential areas of interest for older adults in which DBS assays are available but have not been applied for screening in them. This review describes a brief general overview of DBS, its advantages and disadvantages and potential use in disease diagnosis in older adults.
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144
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Limbeck A, Galler P, Bonta M, Bauer G, Nischkauer W, Vanhaecke F. Recent advances in quantitative LA-ICP-MS analysis: challenges and solutions in the life sciences and environmental chemistry. Anal Bioanal Chem 2015; 407:6593-617. [PMID: 26168964 PMCID: PMC4545187 DOI: 10.1007/s00216-015-8858-0] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 06/09/2015] [Accepted: 06/15/2015] [Indexed: 01/29/2023]
Abstract
Laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) is a widely accepted method for direct sampling of solid materials for trace elemental analysis. The number of reported applications is high and the application range is broad; besides geochemistry, LA-ICP-MS is mostly used in environmental chemistry and the life sciences. This review focuses on the application of LA-ICP-MS for quantification of trace elements in environmental, biological, and medical samples. The fundamental problems of LA-ICP-MS, such as sample-dependent ablation behavior and elemental fractionation, can be even more pronounced in environmental and life science applications as a result of the large variety of sample types and conditions. Besides variations in composition, the range of available sample states is highly diverse, including powders (e.g., soil samples, fly ash), hard tissues (e.g., bones, teeth), soft tissues (e.g., plants, tissue thin-cuts), or liquid samples (e.g., whole blood). Within this article, quantification approaches that have been proposed in the past are critically discussed and compared regarding the results obtained in the applications described. Although a large variety of sample types is discussed within this article, the quantification approaches used are similar for many analytical questions and have only been adapted to the specific questions. Nevertheless, none of them has proven to be a universally applicable method.
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Affiliation(s)
- Andreas Limbeck
- Institute of Chemical Technologies and Analytics, Division of Instrumental Analytical Chemistry, TU Wien, Getreidemarkt 9/164, 1060, Vienna, Austria,
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145
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Dried blood spots for monitoring and individualization of antiepileptic drug treatment. Eur J Pharm Sci 2015; 75:25-39. [DOI: 10.1016/j.ejps.2015.04.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 04/08/2015] [Accepted: 04/09/2015] [Indexed: 11/21/2022]
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146
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Perez JW, Pantazides BG, Watson CM, Thomas JD, Blake TA, Johnson RC. Enhanced stability of blood matrices using a dried sample spot assay to measure human butyrylcholinesterase activity and nerve agent adducts. Anal Chem 2015; 87:5723-9. [PMID: 25955132 PMCID: PMC4517423 DOI: 10.1021/acs.analchem.5b00893] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Dried matrix spots are safer to handle and easier to store than wet blood products, but factors such as intraspot variability and unknown sample volumes have limited their appeal as a sampling format for quantitative analyses. In this work, we introduce a dried spot activity assay for quantifying butyrylcholinesterase (BChE) specific activity which is BChE activity normalized to the total protein content in a sample spot. The method was demonstrated with blood, serum, and plasma spotted on specimen collection devices (cards) which were extracted to measure total protein and BChE activity using a modified Ellman assay. Activity recovered from dried spots was ∼80% of the initial spotted activity for blood and >90% for plasma and serum. Measuring total protein in the sample and calculating specific activity substantially improved quantification and reduced intraspot variability. Analyte stability of nerve agent adducts was also evaluated, and the results obtained via BChE-specific activity measurements were confirmed by quantification of BChE adducts using a previously established LC-MS/MS method. The spotted samples were up to 10 times more resistant to degradation compared to unspotted control samples when measuring BChE inhibition by the nerve agents sarin and VX. Using this method, both BChE activity and adducts can be accurately measured from a dried sample spot. This use of a dried sample spot with normalization to total protein is robust, demonstrates decreased intraspot variability without the need to control for initial sample volume, and enhances analyte stability.
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Affiliation(s)
- Jonas W. Perez
- Centers for Disease Control and Prevention, National Center for Environmental Health, Division of Laboratory Sciences, 4770 Buford Hwy NE, Atlanta, GA 30341 USA
| | - Brooke G. Pantazides
- Centers for Disease Control and Prevention, National Center for Environmental Health, Division of Laboratory Sciences, 4770 Buford Hwy NE, Atlanta, GA 30341 USA
| | - Caroline M. Watson
- Oak Ridge Institute for Science and Education Fellowship at the Center for Disease Control and Prevention, Atlanta, GA
| | - Jerry D. Thomas
- Centers for Disease Control and Prevention, National Center for Environmental Health, Division of Laboratory Sciences, 4770 Buford Hwy NE, Atlanta, GA 30341 USA
| | - Thomas A. Blake
- Centers for Disease Control and Prevention, National Center for Environmental Health, Division of Laboratory Sciences, 4770 Buford Hwy NE, Atlanta, GA 30341 USA
| | - Rudolph C. Johnson
- Centers for Disease Control and Prevention, National Center for Environmental Health, Division of Laboratory Sciences, 4770 Buford Hwy NE, Atlanta, GA 30341 USA
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147
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Dauner AL, Gilliland TC, Mitra I, Pal S, Morrison AC, Hontz RD, Wu SJL. Evaluation of nucleic acid stabilization products for ambient temperature shipping and storage of viral RNA and antibody in a dried whole blood format. Am J Trop Med Hyg 2015; 93:46-53. [PMID: 25940193 PMCID: PMC4497903 DOI: 10.4269/ajtmh.15-0110] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 03/24/2015] [Indexed: 11/07/2022] Open
Abstract
Loss of sample integrity during specimen transport can lead to false-negative diagnostic results. In an effort to improve upon the status quo, we used dengue as a model RNA virus to evaluate the stabilization of RNA and antibodies in three commercially available sample stabilization products: Whatman FTA Micro Cards (GE Healthcare Life Sciences, Pittsburgh, PA), DNAstāble Blood tubes (Biomātrica, San Diego, CA), and ViveST tubes (ViveBio, Alpharetta, GA). Both contrived and clinical dengue-positive specimens were stored on these products at ambient temperature or 37°C for up to 1 month. Antibody and viral RNA levels were measured by enzyme-linked immunosorbent assay (ELISA) and quantitative reverse transcription polymerase chain reaction (qRT-PCR) assays, respectively, and compared with frozen unloaded controls. We observed reduced RNA and antibody levels between stabilized contrived samples and frozen controls at our earliest time point, and this was particularly pronounced for the FTA cards. However, despite some time and temperature dependent loss, a 94.6-97.3% agreement was observed between stabilized clinical specimens and their frozen controls for all products. Additional considerations such as cost, sample volume, matrix, and ease of use should inform any decision to incorporate sample stabilization products into a diagnostic testing workflow. We conclude that DNAstāble Blood and ViveST tubes are useful alternatives to traditional filter paper for ambient temperature shipment of clinical specimens for downstream molecular and serological testing.
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Affiliation(s)
| | | | | | - Subhamoy Pal
- *Address correspondence to Subhamoy Pal, Viral and Rickettsial Diseases Department, Naval Medical Research Center, Building 17, Suite 2B, NSA Bethesda, MD 20889. E-mail:
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148
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Chao TC, Arjmandi-Tash O, Das DB, Starov VM. Spreading of blood drops over dry porous substrate: Complete wetting case. J Colloid Interface Sci 2015; 446:218-25. [DOI: 10.1016/j.jcis.2015.01.054] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 01/20/2015] [Accepted: 01/20/2015] [Indexed: 01/08/2023]
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149
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Determination of Synacthen® in dried blood spots for doping control analysis using liquid chromatography tandem mass spectrometry. Anal Bioanal Chem 2015; 407:4709-20. [DOI: 10.1007/s00216-015-8674-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/18/2015] [Accepted: 03/31/2015] [Indexed: 12/01/2022]
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150
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Dried blood spot analysis for rat and dog studies: validation, hematocrit, toxicokinetics and incurred sample reanalysis. Bioanalysis 2015; 7:869-83. [DOI: 10.4155/bio.15.12] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background: Execution of experiments to introduce dried blood spot (DBS) sampling for preclinical GLP studies and subsequent clinical studies. Results: Bridging data showed high concordance with DBS:plasma ratios of 0.9 in rats and 1.1 in dogs, demonstrating no preferential uptake or association with cellular components of the blood. The DBS methodology was fully validated incorporating additional experiments pertinent to DBS sampling, storage and analysis. Individual hematocrit (Hct) values in the test animals (rats and dogs) were within the validated Hct range. DBS concentration data and the resulting TK profiles were not impacted by an Hct bias. Incurred sample reanalysis showed high correlation in dogs (97%) and rats (100%) meeting acceptance criteria. Conclusion: Successfully validated and adopted DBS for preclinical GLP studies.
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