51
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Cho HD, Kim J, Lee JY, Kim YY, Lee Y, Jo E, Suh JH, Lee J, Cha S, Han SB. A novel dried blood spots analysis combined with on-spot reaction for determination of trimethylamine N-oxide and its related compounds. Talanta 2020; 210:120639. [DOI: 10.1016/j.talanta.2019.120639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/05/2019] [Accepted: 12/09/2019] [Indexed: 10/25/2022]
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52
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Locatelli M, Tartaglia A, D'Ambrosio F, Ramundo P, Ulusoy H, Furton K, Kabir A. Biofluid sampler: A new gateway for mail-in-analysis of whole blood samples. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1143:122055. [DOI: 10.1016/j.jchromb.2020.122055] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/06/2020] [Accepted: 03/08/2020] [Indexed: 10/24/2022]
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53
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Schlegel KM, Elsinghorst PW. Myco-DES: Enabling Remote Extraction of Mycotoxins for Robust and Reliable Quantification by Stable Isotope Dilution LC–MS/MS. Anal Chem 2020; 92:5387-5395. [DOI: 10.1021/acs.analchem.0c00087] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Katharina M. Schlegel
- Central Institute of the Bundeswehr Medical Service Munich, Ingolstädter Landstrasse 102, 85748 Garching, Germany
| | - Paul W. Elsinghorst
- Central Institute of the Bundeswehr Medical Service Munich, Ingolstädter Landstrasse 102, 85748 Garching, Germany
- Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany
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Lacker TJ, Walther A, Fiacco S, Ehlert U. The Relation Between Steroid Secretion Patterns and the Androgen Receptor Gene Polymorphism on Physical Health and Psychological Well-Being-Longitudinal Findings From the Men's Health 40+ Study. Front Hum Neurosci 2020; 14:43. [PMID: 32116617 PMCID: PMC7033643 DOI: 10.3389/fnhum.2020.00043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 01/29/2020] [Indexed: 11/25/2022] Open
Abstract
Research is increasingly focusing on promoting healthy aging and the related extension of the health span by targeting crucial biological processes responsible for age-related conditions. While age-related gradual changes in steroid hormones such as testosterone, estradiol, or cortisol are well described in men, their interactions among each other or with genetic markers have not been sufficiently investigated with regard to physical health or psychological well-being. More specifically, the examination of age-related alterations in hormone interactions and the androgen receptor polymorphism, which modulates androgen action on target cells, in relation to physical health and psychological well-being represents a promising avenue for research on healthy aging in men. A total of 97 healthy aging men provided complete data on psychometric health measures as well as hormonal and genetic parameters at baseline and a 4-year follow-up assessment. Fasting saliva samples were taken at 8:00 am under standardized laboratory conditions, while the androgen receptor gene polymorphism was analyzed from dried blood spots. Longitudinal analyses revealed that psychological well-being and physical health remained stable over time. Analyses indicated that E2 moderated the course of psychological well-being, while the androgen receptor gene polymorphism moderated the course of physical health. Further, T was a strong predictor of physical health. These results suggest that the hypothalamic-pituitary-gonadal (HPG) axis might be important for the maintenance of psychological well-being in men, while physical health depends more on interindividual differences in the androgen receptor gene and T.
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Affiliation(s)
- Tim Jonas Lacker
- Clinical Psychology and Psychotherapy, University of Zurich, Zurich, Switzerland
- University Research Priority Program (URPP) Dynamics of Healthy Aging, University of Zurich, Zurich, Switzerland
| | - Andreas Walther
- Clinical Psychology and Psychotherapy, University of Zurich, Zurich, Switzerland
- University Research Priority Program (URPP) Dynamics of Healthy Aging, University of Zurich, Zurich, Switzerland
- Biopsychology, TU Dresden, Dresden, Germany
| | - Serena Fiacco
- Clinical Psychology and Psychotherapy, University of Zurich, Zurich, Switzerland
- University Research Priority Program (URPP) Dynamics of Healthy Aging, University of Zurich, Zurich, Switzerland
| | - Ulrike Ehlert
- Clinical Psychology and Psychotherapy, University of Zurich, Zurich, Switzerland
- University Research Priority Program (URPP) Dynamics of Healthy Aging, University of Zurich, Zurich, Switzerland
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55
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Micro-extraction by packed sorbent combined with UHPLC-ESI-MS/MS for the determination of prostanoids and isoprostanoids in dried blood spots. Talanta 2020; 206:120236. [DOI: 10.1016/j.talanta.2019.120236] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 08/03/2019] [Accepted: 08/06/2019] [Indexed: 01/22/2023]
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56
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Determination of free G-type nerve agents in blood: in situ derivatization on a dried blood spot (DBS) paper followed by LC–MS/MS analysis. Forensic Toxicol 2020. [DOI: 10.1007/s11419-019-00516-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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57
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Del Ben F, Biasizzo J, Curcio F. A fast, nondestructive, low-cost method for the determination of hematocrit of dried blood spots using image analysis. Clin Chem Lab Med 2019; 57:e81-e82. [PMID: 30179847 DOI: 10.1515/cclm-2018-0755] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 08/09/2018] [Indexed: 02/02/2023]
Affiliation(s)
- Fabio Del Ben
- Department of Medical Area, University of Udine, p.le Kolbe 4, 33100 Udine, Italy
- Immunopathology and Cancer Biomarkers, Department of Cancer Research and Advanced Diagnostics, CRO Aviano IRCCS - National Cancer Institute, Via F.Gallini 2, 33081 Aviano (PN), Italy, E-mail:
| | - Jessica Biasizzo
- ASUIUD, P.le Santa Maria della Misericordia 1, 33100 Udine, Italy
| | - Francesco Curcio
- Department of Medical Area, University of Udine, p.le Kolbe 4, 33100 Udine, Italy
- ASUIUD, P.le Santa Maria della Misericordia 1, 33100 Udine, Italy
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58
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Dvořák M, Ryšavá L, Kubáň P. Capillary Electrophoresis with Capacitively Coupled Contactless Conductivity Detection for Quantitative Analysis of Dried Blood Spots with Unknown Blood Volume. Anal Chem 2019; 92:1557-1564. [PMID: 31794660 DOI: 10.1021/acs.analchem.9b04845] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Blood volume in dried blood spot (DBS) analysis is assumed to be constant for DBS punches with a fixed area. However, blood volume in the punch is dependent on several factors associated with the blood composition and is preferentially normalized by off-line analysis for quantitative purposes. Instead of using external instrumentation, we present an all-in-one approach for the simultaneous determination of exact blood volume in the DBS punch and the quantitation of target analytes. A DBS is eluted with 500 μL of elution solvent in a sample vial, and the eluate is directly subjected to an automated analysis by capillary electrophoresis with capacitively coupled contactless conductivity detection (CE-C4D). The capillary blood volume in the eluate is calculated from the concentrations of the inorganic blood constituents (K+, Na+, or Cl-) determined by CE-C4D, which are linearly proportional to the blood volume originally sampled onto the DBS card. Alternatively, conductivity of the DBS eluate can be used for the blood volume determination by using C4D in a nonseparation flow-through mode. The methods are suitable for the determination of blood volume in unknown DBS samples by punching out the entire DBS or by subpunching a small section of a large DBS with variations of the true vs the determined volume ≤5.5%. Practical suitability was demonstrated by the simultaneous CE-C4D determination of K+ and Na+ (for DBS volume calculation) and amino acids (target analytes) in unknown DBS samples. Quantitative analysis of selected amino acids (related to inborn metabolic disorders) in the unknown DBS was compared with a standard analytical procedure using wet-blood chemistry, and an excellent fit was obtained. The use of CE-C4D represents an important milestone in quantitative DBS analysis since the detection technique is universal, and the separation technique enables the determination of cations and/or anions and the use of multiple detectors, which further enhance selectivity/sensitivity of the analysis and the range of detectable analytes.
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Affiliation(s)
- Miloš Dvořák
- Institute of Analytical Chemistry of the Czech Academy of Sciences , Veveří 97 , CZ-60200 Brno , Czech Republic
| | - Lenka Ryšavá
- Institute of Analytical Chemistry of the Czech Academy of Sciences , Veveří 97 , CZ-60200 Brno , Czech Republic.,Institute of Food Science and Biotechnology, Faculty of Chemistry , Brno University of Technology , Purkyňova 118 , CZ-61200 Brno , Czech Republic
| | - Pavel Kubáň
- Institute of Analytical Chemistry of the Czech Academy of Sciences , Veveří 97 , CZ-60200 Brno , Czech Republic
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59
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Zhang M, Wu Y, Wang F, Liu H, Zhang S, Zhang Z, Shao L, Yang J, Cui X, Zhang Y, Zhang T, Huo J, Wu J. Improving long-term stability of retinol in dried blood spots and quantification of its levels via a novel LC-MS/MS method. Anal Bioanal Chem 2019; 411:8073-8080. [PMID: 31761955 DOI: 10.1007/s00216-019-02183-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/06/2019] [Accepted: 10/01/2019] [Indexed: 10/25/2022]
Abstract
Vitamin A deficiency (VAD) is a major micronutrient deficiency in children. Although plasma and serum retinol levels are proposed as the key indicators of VAD, collecting and transporting plasma and serum are difficult and inconvenient in field studies. Dried blood spot (DBS) retinol has been used as an alternative to plasma retinol in several epidemiological and clinical studies. A limitation of methods that use DBS retinol is the instability and apparent loss of retinol in DBSs. Therefore, an accurate, reliable method for stabilizing retinol in DBSs and quantifying and comparing DBS retinol concentrations with equivalent plasma retinol levels is required. In this study, antioxidants on paper combined with vacuum treatment were found to greatly increase the stability of DBS retinol during 120 min of air drying and 30 days of room-temperature storage. A surrogate matrix of whole blood prepared using a mixture of human erythrocytes and 2% BSA in PBS was firstly used in DBS retinol determination based on the fact that retinol is excluded from erythrocytes. The method was linear in the concentration range of 0.04-300 μg/mL. Both the between-run (n = 5) and within-run (n = 6) precision (relative standard deviations, RSD%) were below 8.42%. The spiked recoveries at 3 concentrations ranged from 86.48 to 98.13%. The internal standard (IS)-normalized matrix factor (MF) was 99.72% with a RSD% of 10.50% (n = 3). The accuracy was calibrated using two National Institute of Standards and Technology (NIST) serum-generated calibrants at concentrations of 0.1962 and 0.3948 g/mL, and relative errors (RE% values) of 0.07% and 4.95% were found, respectively. A simple calibration model was first developed to convert DBS retinol concentration to the equivalent plasma retinol concentration, thereby enabling comparisons with clinical reference ranges and with studies using serum or plasma samples. Graphical abstract.
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Affiliation(s)
- Min Zhang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, 100020, China.,Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - YiRan Wu
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, 100020, China.,Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Fang Wang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, 100020, China.,Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - HongJun Liu
- IPhase Pharma Services, Beijing, 101111, China
| | - ShuYi Zhang
- Department of Integrated Early Childhood Development, Capital Institute of Pediatrics, Beijing, 100020, China
| | | | - LiJun Shao
- IPhase Pharma Services, Beijing, 101111, China
| | - Jian Yang
- Department of Neurology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - XiaoDai Cui
- Clinical Central Laboratory, Capital Institute of Pediatrics, Beijing, 100020, China
| | - YanFeng Zhang
- Department of Integrated Early Childhood Development, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Ting Zhang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, 100020, China.
| | - JunSheng Huo
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing, 100050, China.
| | - JianXin Wu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, 100020, China.
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60
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Uribe B, González O, Blanco ME, Albóniga OE, Alonso ML, Alonso RM. Analysis of the Heterogeneous Distribution of Amiloride and Propranolol in Dried Blood Spot by UHPLC-FLD and MALDI-IMS. Molecules 2019; 24:molecules24234320. [PMID: 31779239 PMCID: PMC6930677 DOI: 10.3390/molecules24234320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/22/2019] [Accepted: 11/24/2019] [Indexed: 11/16/2022] Open
Abstract
Dried blood spot (DBS) has lately experienced an increase in its use in bioanalysis due to its several advantages compared with traditional blood sampling methods. Nevertheless, the use of DBS with quantitative purposes is hindered by the heterogeneous distribution of some compounds in the supporting matrix and the dependence of the response on different factors, such as the hematocrit, blood volume, and sampling position. In this study the effect of those factors in the analytical response was investigated by ultra high performance liquid chromatography coupled to fluorescence detection, using amiloride and propranolol as model compounds. The results showed a heterogeneous and drug-dependent distribution of the compounds in the blood spot. While amiloride concentration was higher in the center, propranolol concentration was higher in the periphery of the spot. Besides, the influence of the hematocrit on the quantitative results was observed. MALDI mass spectrometry imaging (MALDI-IMS) has allowed study of the distribution of the two cardiovascular drugs when they were placed in the DBS card using water:methanol solutions, demonstrating that they followed a similar distribution pattern as in blood. This work has showed the potentiality of the MALDI-IMS technique to predict the distribution of the drugs in the DBS card.
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61
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Swiner DJ, Jackson S, Durisek GR, Walsh BK, Kouatli Y, Badu-Tawiah AK. Microsampling with cotton thread: Storage and ultra-sensitive analysis by thread spray mass Spectrometry. Anal Chim Acta 2019; 1082:98-105. [PMID: 31472717 PMCID: PMC6814156 DOI: 10.1016/j.aca.2019.07.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/05/2019] [Accepted: 07/07/2019] [Indexed: 12/24/2022]
Abstract
Storage and quantitative analysis of small volumes of biofluids are challenging, especially when low concentrations of analytes are to be detected in the presence of complex matrices. In this study, we describe an integrated thread-based approach for stabilizing small blood volumes in the dry-state at room temperature, while also offering direct analysis capabilities via thread spray mass spectrometry. The analytical merits of this novel microsampling platform was demonstrated via the direct analysis of diazepam and cocaine in dried blood samples stored for 42 days. In-situ in-capillary blood processing from hydrophobic threads enabled limits of detection as low as parts-per-quadrillion to be reached. We validated this ultra-sensitivity by analyzing small tissue-like residues collected after pushing a thread through the sample once. The implications of this sample collection, storage, and analysis platform can be extensive with direct applications in forensics and clinical studies.
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Affiliation(s)
- Devin J Swiner
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, 43110, USA
| | - Sierra Jackson
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, 43110, USA
| | - George R Durisek
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, 43110, USA
| | - Bridget K Walsh
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, 43110, USA
| | - Yaman Kouatli
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, 43110, USA
| | - Abraham K Badu-Tawiah
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, 43110, USA.
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62
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Evaluation of Dried Blood Spot Sampling for Clinical Metabolomics: Effects of Different Papers and Sample Storage Stability. Metabolites 2019; 9:metabo9110277. [PMID: 31726782 PMCID: PMC6918358 DOI: 10.3390/metabo9110277] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 10/30/2019] [Accepted: 11/06/2019] [Indexed: 02/01/2023] Open
Abstract
The dried blood spot (DBS) sampling has a lot of advantages in comparison with the “standard” venous blood collecting, such as small collection volume, painless and easy sample collection with minimal training required, stable and transportable at ambient temperatures, etc. The aim of this study was to determine the comparability of four different types of DBS sampling (HemaSpot™-HF Blood Collection Device, Whatman® 903 Protein Saver Snap Apart Card, card ImmunoHealth™, and glass fiber strip ImmunoHealth™) for analysis of the global metabolites profile. All the samples were collected from the same person at the same time and stored at room temperature for four weeks in order to exclude all possible deviations deriving from biological variances and to evaluate sample storage stability. Metabolome profiling by direct injection of a deproteinized capillary blood DBS sample into an electrospray ion source of a hybrid quadrupole time-of-flight mass spectrometer was used. Differences in the metabolomics profile were found between the different DBS collection materials, especially for ImmunoHealth™ card and ImmunoHealth™ glass fiber strip. However, our results indicate that the analytical performance of all tested DBS sampling materials showed consistent results overall detected metabolites and no dramatic changes between them in the metabolic composition during the storage time.
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63
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Kumar P, Agrawal P, Chatterjee K. Challenges and opportunities in blood flow through porous substrate: A design and interface perspective of dried blood spot. J Pharm Biomed Anal 2019; 175:112772. [DOI: 10.1016/j.jpba.2019.07.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 07/09/2019] [Accepted: 07/10/2019] [Indexed: 12/13/2022]
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64
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Bocato MZ, Bianchi Ximenez JP, Hoffmann C, Barbosa F. An overview of the current progress, challenges, and prospects of human biomonitoring and exposome studies. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2019; 22:131-156. [PMID: 31543064 DOI: 10.1080/10937404.2019.1661588] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Human Biomonitoring (HB), the process for determining whether and to what extent chemical substances penetrated our bodies, serves as a useful tool to quantify human exposure to pollutants. In cases of nutrition and physiologic status, HB plays a critical role in the identification of excess or deficiency of essential nutrients. In pollutant HB studies, levels of substances measured in body fluids (blood, urine, and breast milk) or tissues (hair, nails or teeth) aid in the identification of potential health risks or associated adverse effects. However, even as a widespread practice in several countries, most HB studies reflect exposure to a single compound or mixtures which are measured at a single time point in lifecycle. On the other hand, throughout an individual's lifespan, the contact with different physical, chemical, and social stressors occurs at varying intensities, differing times and durations. Further, the interaction between stressors and body receptors leads to dynamic responses of the entire biological system including proteome, metabolome, transcriptome, and adductome. Bearing this in mind, a relatively new vision in exposure science, defined as the exposome, is postulated to expand the traditional practice of measuring a single exposure to one or few chemicals at one-time point to an approach that addresses measures of exposure to multiple stressors throughout the lifespan. With the exposome concept, the science of exposure advances to an Environment-Wide Association Perspective, which might exhibit a stronger relationship with good health or disease conditions for an individual (phenotype). Thus, this critical review focused on the current progress of HB and exposome investigations, anticipating some challenges, strategies, and future needs to be taken into account for designing future surveys.
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Affiliation(s)
- Mariana Zuccherato Bocato
- Laboratório de Toxicologia Analítica e de Sistemas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , Brazil
| | - João Paulo Bianchi Ximenez
- Laboratório de Toxicologia Analítica e de Sistemas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , Brazil
| | - Christian Hoffmann
- Departmento de Alimentos e Nutrição Experimental Faculdade de Ciências Farmacêuticas, Universidade de São Paulo , São Paulo , Brazil
| | - Fernando Barbosa
- Laboratório de Toxicologia Analítica e de Sistemas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , Brazil
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65
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Dried blood spot N-glycome analysis by MALDI mass spectrometry. Talanta 2019; 205:120104. [PMID: 31450448 DOI: 10.1016/j.talanta.2019.06.104] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 06/26/2019] [Accepted: 06/28/2019] [Indexed: 12/18/2022]
Abstract
Body fluid N-glycome analysis as well as glyco-proteoform profiling of existing protein biomarkers potentially provides a stratification layer additional to quantitative, diagnostic protein levels. For clinical omics applications, the collection of a dried blood spot (DBS) is increasingly pursued as an alternative to sampling milliliters of peripheral blood. Here we evaluate DBS cards as a blood collection strategy for protein N-glycosylation analysis aiming for high-throughput clinical applications. A protocol for facile N-glycosylation profiling from DBS is developed that includes sialic acid linkage differentiation. This protocol is based on a previously established total plasma N-glycome mass spectrometry (MS) method, with adjustments for the analysis of DBS specimens. After DBS-punching and protein solubilization N-glycans are released, followed by chemical derivatization of sialic acids and MS-measurement of N-glycan profiles. With this method, more than 80 different glycan structures are identified from a DBS, with RSDs below 10% for the ten most abundant glycans. N-glycan profiles of finger-tip blood and venous blood are compared and short-term stability of DBS is demonstrated. This method for fast N-glycosylation profiling of DBS provides a minimally invasive alternative to conventional serum and plasma protein N-glycosylation workflows. With simplified blood sampling this DBS approach has vast potential for clinical glycomics applications.
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66
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Machado MC, Vimbela GV, Nilsson M, Dallaire S, Wu R, Tripathi A. Rapid electrophoretic recovery of DNA from dried blood spots. Electrophoresis 2019; 40:1812-1819. [PMID: 31095765 DOI: 10.1002/elps.201800363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 03/31/2019] [Accepted: 04/23/2019] [Indexed: 11/09/2022]
Abstract
Large-scale genetic screening of neonatal dried blood spots for episomal DNA has a great potential to lower patient mortality and morbidity through early diagnosis of primary immunodeficiencies. However, DNA extraction from the surface of dried blood spots remains one of the most time consuming, costly, and labor-intensive parts of DNA analysis. In the present study, we developed and optimized a rapid methodology using only 50 V and heat to extract episomal DNA from dried blood spots prepared from diagnostic cord blood samples. This electric field DNA extraction is the first methodology to use an electric field to extract episomal DNA from a dried blood spot. This 25-minute procedure has one of the lowest times for the extraction of episomal DNA found within the literature and this novel procedure not only negates the need for costly treatment and wash steps, but reduces the time of manual procedures by more than 30 min while retaining the 75-80% of the yield. Combined with real-time PCR, this novel method of electric field extraction not only provides an effective tool for the large scale genetic analysis of neonates, but a key step forward in the simplification and standardization of diagnostic testing.
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Affiliation(s)
- Mary C Machado
- Center for Biomedical Engineering, School of Engineering Brown University, Providence, RI
| | - Gina V Vimbela
- Center for Biomedical Engineering, School of Engineering Brown University, Providence, RI
| | | | | | - Rongcong Wu
- PerkinElmer, 940 Winter Street, Waltham, Massachusetts, USA
| | - Anubhav Tripathi
- Center for Biomedical Engineering, School of Engineering Brown University, Providence, RI
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67
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Chen L, Yu Y, Duan G, Wang X, Shen B, Xiang P. Simultaneous Determination of Selegiline, Desmethylselegiline, R/S-methamphetamine, and R/S-amphetamine on Dried Urine Spots by LC/MS/MS: Application to a Pharmacokinetic Study in Urine. Front Chem 2019; 7:248. [PMID: 31058136 PMCID: PMC6478707 DOI: 10.3389/fchem.2019.00248] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 03/27/2019] [Indexed: 01/15/2023] Open
Abstract
Objective: Chiral analysis is a crucial method to differentiate selegiline intake from drug abuse. A dried urine spot (DUS) analytical method based on spotting urine samples (10 μL) onto dried spot collection cards, and followed by air-drying and extraction, was developed and validated for the determination of selegiline, desmethylselegiline, R/S-methamphetamine, and R/S-amphetamine. Methods: Methanol (0.5 mL) was found to be the ideal extraction solvent for target extraction from DUSs under orbital-horizontal stirring on a lateral shaker at 1,450 rpm for 30 min. Determinations were performed by direct electrospray ionization tandem mass spectrometry (ESI-MS/MS) under positive electrospray ionization conditions using multiple reaction monitoring mode. The chromatographic system consisted of a ChirobioticTM V2 column (2.1 × 250 mm, 5 μm) and a mobile phase of methanol containing 0.1% (v/v) glacial acetic acid and 0.02% (v/v) ammonium hydroxide. Results and conclusions: The calibration curves were linear from 50 to 5,000 ng/mL, with r > 0.995 for all analytes, imprecisions ≤ 15% and accuracies between -11.4 and 11.7%. Extraction recoveries ranged from 48.6 to 105.4% with coefficients of variation (CV) ≤ 13.7%, and matrix effects ranged from 45.4 to 104.1% with CV ≤ 10.3%. The lower limit of quantification was 50 ng/mL for each analyte. The present method is simple, rapid (accomplished in 12 min), sensitive, and validated by a pharmacokinetic study in human urine collected after a single oral administration of SG.
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Affiliation(s)
- Lizhu Chen
- Shanghai Key Laboratory of Forensic Medicine, Department of Forensic Toxicology, Academy of Forensic Science, Shanghai, China
- Department of Pharmaceutical Analysis, School of Pharmacy, Fudan University, Shanghai, China
| | - Yingjia Yu
- Department of Pharmaceutical Analysis, School of Pharmacy, Fudan University, Shanghai, China
| | - Gengli Duan
- Department of Pharmaceutical Analysis, School of Pharmacy, Fudan University, Shanghai, China
| | - Xin Wang
- Shanghai Key Laboratory of Forensic Medicine, Department of Forensic Toxicology, Academy of Forensic Science, Shanghai, China
| | - Baohua Shen
- Shanghai Key Laboratory of Forensic Medicine, Department of Forensic Toxicology, Academy of Forensic Science, Shanghai, China
| | - Ping Xiang
- Shanghai Key Laboratory of Forensic Medicine, Department of Forensic Toxicology, Academy of Forensic Science, Shanghai, China
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Eick GN, Devlin MJ, Cepon‐Robins TJ, Kowal P, Sugiyama LS, Snodgrass JJ. A dried blood spot‐based method to measure levels of tartrate‐resistant acid phosphatase 5b (TRACP‐5b), a marker of bone resorption. Am J Hum Biol 2019; 31:e23240. [DOI: 10.1002/ajhb.23240] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 02/08/2019] [Accepted: 03/09/2019] [Indexed: 12/22/2022] Open
Affiliation(s)
- Geeta N. Eick
- Department of Anthropology University of Oregon Eugene Oregon
| | - Maureen J. Devlin
- Department of Anthropology University of Michigan Ann Arbor Michigan
| | | | - Paul Kowal
- Department of Anthropology University of Oregon Eugene Oregon
- Department of Health Statistics and Information Systems World Health Organization Genève Switzerland
- University of Newcastle Research Centre for Generational Health and Ageing Newcastle New South Wales Australia
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69
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Nanthasurasak P, See HH, Zhang M, Guijt RM, Breadmore MC. In‐Transit Electroextraction of Small‐Molecule Pharmaceuticals from Blood. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pavisara Nanthasurasak
- Australian Centre for Research on Separation Science (ACROSS)School of Physical SciencesUniversity of Tasmania Hobart 7005 Australia
| | - Hong Heng See
- Centre for Sustainable Nanomaterials, Ibnu SinaInstitute for Scientific and Industrial ResearchUniversiti Teknologi Malaysia Johor Bahru, Johor 81310 Malaysia
| | - Min Zhang
- School of Life and Environmental SciencesGuilin University of Electronic Technology Guilin Guangxi 541004 China
| | - Rosanne M. Guijt
- Deakin UniversityCentre for Rural and Regional Futures, Geelong Private Bag 20000 3220 Geelong Australia
| | - Michael C. Breadmore
- Australian Centre for Research on Separation Science (ACROSS)School of Physical SciencesUniversity of Tasmania Hobart 7005 Australia
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Abstract
The spreading of small liquid drops over thin and thick porous layers (dry or saturated with the same liquid) is discussed in the case of both complete wetting (silicone oils of different viscosities over nitrocellulose membranes and blood over a filter paper) and partial wetting (aqueous SDS (Sodium dodecyl sulfate) solutions of different concentrations and blood over partially wetted substrates). Filter paper and nitrocellulose membranes of different porosity and different average pore size were used as a model of thin porous layers, sponges, glass and metal filters were used as a model of thick porous substrates. Spreading of both Newtonian and non-Newtonian liquid are considered below. In the case of complete wetting, two spreading regimes were found (i) the fast spreading regime, when imbibition is not important and (ii) the second slow regime when imbibition dominates. As a result of these two competing processes, the radius of the drop goes through a maximum value over time. A system of two differential equations was derived in the case of complete wetting for both Newtonian and non-Newtonian liquids to describe the evolution with time of radii of both the drop base and the wetted region inside the porous layer. The deduced system of differential equations does not include any fitting parameter. Experiments were carried out by the spreading of silicone oil drops over various dry microfiltration membranes (permeable in both normal and tangential directions) and blood over dry filter paper. The time evolution of the radii of both the drop base and the wetted region inside the porous layer were monitored. All experimental data fell on two universal curves if appropriate scales are used with a plot of the dimensionless radii of the drop base and of the wetted region inside the porous layer on dimensionless time. The predicted theoretical relationships are two universal curves accounting quite satisfactorily for the experimental data. According to the theory prediction, (i) the dynamic contact angle dependence on the same dimensionless time as before should be a universal function and (ii) the dynamic contact angle should change rapidly over an initial short stage of spreading and should remain a constant value over the duration of the rest of the spreading process. The constancy of the contact angle on this stage has nothing to do with hysteresis of the contact angle: there is no hysteresis in the system under investigation in the case of complete wetting. These conclusions again are in good agreement with experimental observations in the case of complete wetting for both Newtonian and non-Newtonian liquids. Addition of surfactant to aqueous solutions, as expected, improve spreading over porous substrates and, in some cases, results in switching from partial to complete wetting. It was shown that for the spreading of surfactant solutions on thick porous substrates there is a minimum contact angle after which the droplet rapidly absorbs into the substrate. Unfortunately, a theory of spreading/imbibition over thick porous substrates is still to be developed. However, it was shown that the dimensionless time dependences of both contact angle and spreading radius of the droplet on thick porous material fall on to a universal curve in the case of complete wetting.
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71
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Lenk G, Ullah S, Stemme G, Beck O, Roxhed N. Evaluation of a Volumetric Dried Blood Spot Card Using a Gravimetric Method and a Bioanalytical Method with Capillary Blood from 44 Volunteers. Anal Chem 2019; 91:5558-5565. [DOI: 10.1021/acs.analchem.8b02905] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Gabriel Lenk
- KTH Royal Institute of Technology Stockholm, Department of Micro and Nanosystems, 10044 Stockholm, Sweden
| | - Shahid Ullah
- Karolinska University Hospital, Clinical Pharmacology, 14186 Stockholm, Sweden
| | - Göran Stemme
- KTH Royal Institute of Technology Stockholm, Department of Micro and Nanosystems, 10044 Stockholm, Sweden
| | - Olof Beck
- Karolinska University Hospital, Clinical Pharmacology, 14186 Stockholm, Sweden
| | - Niclas Roxhed
- KTH Royal Institute of Technology Stockholm, Department of Micro and Nanosystems, 10044 Stockholm, Sweden
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72
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Poothong S, Papadopoulou E, Lundanes E, Padilla-Sánchez JA, Thomsen C, Haug LS. Dried blood spots for reliable biomonitoring of poly- and perfluoroalkyl substances (PFASs). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 655:1420-1426. [PMID: 30577133 DOI: 10.1016/j.scitotenv.2018.11.214] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 11/13/2018] [Accepted: 11/14/2018] [Indexed: 06/09/2023]
Abstract
Dried blood spot (DBS) sampling has gained attention in several scientific areas because of the low sampling burden. The study aimed to develop a method for the determination of poly- and perfluoroalkyl substances (PFASs) in DBS using a standardized blood volume. The DBS method using a simple methanol extraction followed by online solid phase extraction-ultra high performance liquid chromatography-tandem mass spectrometry quantification was validated. Only 30 μL of blood is required. Based on the measurements of DBS dispersed areas from known blood volumes (20-70 μL), the blood volume on a 3 mm diameter DBS subsample was calculated to be 3.3 μL (median, n = 708 measurements, 59 adults). Strong correlations of PFAS concentrations between finger prick DBSs and venous whole blood samples (n = 57) were found (rho 0.72-0.97, p < 0.0001). Also, Passing-Bablok regressions and Bland-Altman plots demonstrated good agreements of PFAS concentrations in finger prick DBSs and venous whole blood samples. This finding indicates that the DBS method was satisfactory, and allows straightforward analysis of PFASs in DBS without hematocrit correction. This DBS method is reliable for accurate determination of PFASs and has a high potential for use of self-collected DBS in large-scale biomonitoring studies as well as for archived DBS samples.
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Affiliation(s)
- Somrutai Poothong
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, NO-0403 Oslo, Norway; Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, NO-0315 Oslo, Norway.
| | - Eleni Papadopoulou
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, NO-0403 Oslo, Norway
| | - Elsa Lundanes
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, NO-0315 Oslo, Norway
| | - Juan Antonio Padilla-Sánchez
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, NO-0403 Oslo, Norway
| | - Cathrine Thomsen
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, NO-0403 Oslo, Norway
| | - Line Småstuen Haug
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, NO-0403 Oslo, Norway
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Zhang M, Liu H, Huang X, Shao L, Xie X, Wang F, Yang J, Pei P, Zhang Z, Zhai Y, Wang Q, Zhang T, Huang J, Cui X. A novel LC-MS/MS assay for vitamin B 1, B 2 and B 6 determination in dried blood spots and its application in children. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1112:33-40. [PMID: 30844694 DOI: 10.1016/j.jchromb.2019.02.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 02/25/2019] [Accepted: 02/26/2019] [Indexed: 12/21/2022]
Abstract
Thiamin, riboflavin and pyridoxal phosphate (PLP) concentrations are useful indices for evaluating vitamin B1, B2 and B6 status. Several HPLC assays have been developed for determining thiamin, riboflavin and PLP in biological matrix. However, no existing LC-MS/MS methods can be used to quantify thiamin, riboflavin and PLP in dried blood spots (DBSs), which are often used as a sampling/storage vessel for blood from infants and children. This study evaluated the validity, reliability and stability of an LC-MS/MS assay for measuring thiamin, riboflavin and PLP in DBS cards. DBS samples were deproteinized by adding trichloroacetic acid containing thiamine-[13C4], riboflavin-[13C4,15N2] and pyridoxal-d3 as internal standards. Thiamin, riboflavin and PLP were separated on a C8 column with a 5-min run time. Both the between-run and within-run variable coefficients (CV% values) were < 8.56%. The accuracies were good and showed relative errors (RE% values) from -7.40% to 3.12%. The lower limits of quantification (LLOQs) ranged from 0.2 to 0.5 ng/mL, and the recoveries were from 81.49% to 112.23% for all 3 analytes. The matrix effects (ME% values) were acceptable, and the CV% values of the internal standard-normalized matrix factors were <15% (n = 6). Thiamin, riboflavin and PLP were stable on the DBS card during at least 15 days of room-temperature storage under vacuum in the dark, and the measurements of thiamin, riboflavin and PLP in the DBSs showed good agreement with the corresponding concentrations determined from liquid blood (R2 values >0.96). The validated method was successfully applied to the nutritional assessment of vitamins B1, B2, and B6 in 48 Chinese children.
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Affiliation(s)
- Min Zhang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing 100020, China
| | - HongJun Liu
- IPhase Pharma Services, Beijing 101111, China
| | - XiaoLan Huang
- Clinical Central Laboratory, Capital Institute of Pediatrics, Beijing 100020, China
| | - LiJun Shao
- IPhase Pharma Services, Beijing 101111, China
| | - XiaoLu Xie
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing 100020, China
| | - Fang Wang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing 100020, China
| | - Jian Yang
- Department of Neurology, Capital Institute of Pediatrics, Beijing 100020, China
| | - Pei Pei
- Clinical Central Laboratory, Capital Institute of Pediatrics, Beijing 100020, China
| | | | | | - Qian Wang
- IPhase Pharma Services, Beijing 101111, China
| | - Ting Zhang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing 100020, China
| | - Jian Huang
- Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - XiaoDai Cui
- Clinical Central Laboratory, Capital Institute of Pediatrics, Beijing 100020, China.
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74
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Nanthasurasak P, See HH, Zhang M, Guijt RM, Breadmore MC. In-Transit Electroextraction of Small-Molecule Pharmaceuticals from Blood. Angew Chem Int Ed Engl 2019; 58:3790-3794. [PMID: 30614157 DOI: 10.1002/anie.201812077] [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: 10/21/2018] [Indexed: 11/09/2022]
Abstract
An electrokinetic platform was developed for extracting small-molecule pharmaceuticals from a dried blood spot. Through the exclusion of liquid reagents and use of low field strength (6 V cm-1 ), the electroextraction of a drug from a dried blood spot, deposited on a polymer inclusion membrane (PIM), could be realised while in transit in the mail. In transit sample preparation provides a potential solution to in situ sample degradation and may accelerate the workflow upon arrival of a patient sample at the analytical facility. The electroextraction method was enabled through our discovery of the use of 15-20 μm thin PIMs as electrophoretic separation medium in absence of liquid reagents. Here, a PIM consisting of cellulose triacetate as polymer base, 2-nitrophenyl octyl ether as plasticizer and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide as carrier was used. The PIM, was packaged with two 12 V batteries to supply the separation voltage. A blood spot containing berberine chloride was deposited and dried before the applying the separation potential, allowing for the electroextraction while the packaged device was shipped in internal mail. Upon arrival in the analytical laboratory, the PIM was analysed using a fluorescence microscope with photon multiplier tube, quantifying the berberine extracted away from the sample matrix. This platform represents a new opportunity for processing clinical samples during transport to the laboratory, saving time and manual handling to accelerate the time to result.
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Affiliation(s)
- Pavisara Nanthasurasak
- Australian Centre for Research on Separation Science (ACROSS), School of Physical Sciences, University of Tasmania, Hobart, 7005, Australia
| | - Hong Heng See
- Centre for Sustainable Nanomaterials, Ibnu Sina, Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, Johor Bahru, Johor, 81310, Malaysia
| | - Min Zhang
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China
| | - Rosanne M Guijt
- Deakin University, Centre for Rural and Regional Futures, Geelong, Private Bag 20000, 3220, Geelong, Australia
| | - Michael C Breadmore
- Australian Centre for Research on Separation Science (ACROSS), School of Physical Sciences, University of Tasmania, Hobart, 7005, Australia
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75
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Current direction and advances in analytical sample extraction techniques for drugs with special emphasis on bioanalysis. Bioanalysis 2019; 11:313-332. [PMID: 30663327 DOI: 10.4155/bio-2018-0144] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Analytical techniques may not be compatible or sufficiently sensitive to the analytes, unless it undergoes a specific sample extraction procedure. Sample extraction can be considered as one of the key steps in analysis. Analysis of a poorly treated sample may produce inferior quality of analytical data. Continuous advancement and development of newer sample extraction techniques such as solid phase microextraction, ultrasound, magnetically and microwave assisted magnetic extraction; electro-membrane extraction and dried blood spotting are to address the shortcomings of the existing techniques and to provide more automation, minimizing preparation time and make them high throughput. This review summarizes the suitability of application of the advanced sample preparation techniques available for chemical and bioanalysis in a comprehensive manner. This review also provides a scientific guidance for selecting the appropriate sample extraction technique based on sample type.
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76
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Kröger S, Sperling M, Karst U. Quantitative dried blood spot analysis for metallodrugs by laser ablation-inductively coupled plasma-mass spectrometry. J Trace Elem Med Biol 2019; 51:50-56. [PMID: 30466938 DOI: 10.1016/j.jtemb.2018.09.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 09/24/2018] [Accepted: 09/25/2018] [Indexed: 12/19/2022]
Abstract
A quantitative dried blood spot (DBS) method based on direct sampling by means of laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) is presented. Gadolinium-based contrast agents were used as model metallodrugs with a significant relevance for pharmaceutical applications. Challenges regarding the ablation of the complex blood-filter matrix were characterized and successfully addressed by a thorough adaption of the laser ablation conditions. Especially the laser fluence was optimized with respect to the particle size distribution of the generated aerosol as monitored by an optical particle counter. Thus, generation of micrometer-sized particles could be minimized in favor of smaller particles increasing the transport efficiency of the DBS ablation aerosol to the plasma and the recorded signal stability. Inhomogeneous blood drying on the porous filter paper could be compensated by the addition of an internal standard prior to blood spotting. To preserve the advantages of DBS sampling, such as small blood volumes and minimal invasiveness, the combined use of DBS and a capillary blood sampling system is demonstrated. By placing the internal standard into the capillary prior to blood sampling, a simple workflow usable for clinical application was implemented. The applicability of the developed method, achieving limits of detection and quantification in the low μg L-1 range and covering a linear range of over four orders of magnitude, was demonstrated for blood samples containing different concentrations of the gadolinium contrast agents gadopentetate and gadoterate.
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Affiliation(s)
- Sabrina Kröger
- Institute of Inorganic and Analytical Chemistry, University of Münster, Corrensstraße 28/30, 48149, Münster, Germany
| | - Michael Sperling
- Institute of Inorganic and Analytical Chemistry, University of Münster, Corrensstraße 28/30, 48149, Münster, Germany; European Virtual Institute for Speciation Analysis (EVISA), Mendelstraße 11, 48149 Münster, Germany
| | - Uwe Karst
- Institute of Inorganic and Analytical Chemistry, University of Münster, Corrensstraße 28/30, 48149, Münster, Germany.
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77
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Velghe S, Delahaye L, Stove CP. Is the hematocrit still an issue in quantitative dried blood spot analysis? J Pharm Biomed Anal 2019; 163:188-196. [DOI: 10.1016/j.jpba.2018.10.010] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/02/2018] [Accepted: 10/03/2018] [Indexed: 01/12/2023]
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78
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Development of paper substrate for paper spray MS in high-sensitivity analysis of biological samples. Bioanalysis 2018; 10:2047-2067. [DOI: 10.4155/bio-2018-0199] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Paper spray (PS) has demonstrated a promising future for direct mass spectrometric analysis. In the process of PS, paper substrate has been demonstrated as a crucial factor in determining the final performance of PS-MS, and therefore much attention is paid to modification of paper substrate. In this review, we systematically introduce the development of paper substrate for PS. Various commercial and modified papers are comprehensively reviewed, and much effort is focused on some physical and chemical approaches for modification of paper substrate. The application of modified paper substrates to biological sample analyses is discussed. The future promising directions of paper substrate for PS are highlighted.
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79
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Allen AM, Lundeen K, Murphy SE, Spector L, Harlow BL. Web-Delivered Multimedia Training Materials for the Self-Collection of Dried Blood Spots: A Formative Project. JMIR Form Res 2018; 2:e11025. [PMID: 30684406 PMCID: PMC6334672 DOI: 10.2196/11025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/10/2018] [Accepted: 08/27/2018] [Indexed: 01/29/2023] Open
Abstract
Background The use of dried blood spots (DBS) in biomedical research has been increasing as an objective measure for variables that are typically plagued by self-report, such as smoking status and medication adherence. The development of training materials for the self-collection of DBS that can be delivered through the Web would allow for broader use of this methodology. Objective The objective of this study was to evaluate the acceptability and feasibility of the self-collection of DBS using newly developed multimedia training materials that were delivered through the Web. We also aimed to assess the usability of the collected DBS samples. Methods We recruited participants through Facebook advertising for two distinct studies. The first study evaluated the acceptability of our newly developed DBS training materials, while the second assessed the implementation of this protocol into a larger Web-based study. Results In the first study, participants (N=115) were aged, on average, 26.1 (SD 6.4) years. Training materials were acceptable (113/115, 98.2%, of participants were willing to collect DBS again) and produced usable samples (110/115, 95.7%, collected DBS were usable). In the second study, response rate was 25.0% (41/164), with responders being significantly younger than nonresponders (20.3 [SD 0.2] vs 22.0 [SD 0.4]; P<.001), and 92% (31/41) of collected DBS samples were usable by the laboratory. Conclusions Overall, while the protocol is acceptable, feasible, and produced usable samples, additional work is needed to improve response rates.
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Affiliation(s)
- Alicia M Allen
- Department of Family & Community Medicine, College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Kim Lundeen
- Department of Family Medicine & Community Health, Medical School, University of Minnesota, Minneapolis, MN, United States
| | - Sharon E Murphy
- Division of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, United States
| | - Logan Spector
- Division of Epidemiology and Clinical Research, Pediatrics, University of Minnesota, Minneapolis, MN, United States
| | - Bernard L Harlow
- Department of Epidemiology, School of Public Health, Boston University, Boston, MA, United States
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80
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Heng Z, Ruan L, Gan R. Three Methods to Purify Leukocytes and RNA Quality Assessment. Biopreserv Biobank 2018; 16:434-438. [PMID: 30379576 DOI: 10.1089/bio.2018.0058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Leukocytes function as central effectors in innate immunity (such as phagocytosis) as well as adaptive immunity (e.g., antigen-dependent T cell activation), and serve as an important resource in the fields of translational medicine, precision medicine, and cell therapy. Isolation of leukocytes from whole blood is necessary for high-quality RNA and downstream research. This process is susceptible to the variability of many factors, such as blood collection, isolation reagents, and extraction methods. In this study, three methods were applied for leukocytes separation, followed by RNA extraction and quality testing to evaluate the methods. Results showed that leukocytes were purified using lymphocyte separation medium (LSM), optimized LSM method, or red blood cell lysis buffer (RBC lysis), and RNA quality met the basic requirements for downstream studies. Although considering the simplicity of the procedure and RNA quality from donated samples, the RBC lysis method should be recommended to biobanks for further research.
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Affiliation(s)
- Zhang Heng
- Shanghai Clinical Research Center, Shanghai, China.,Shanghai Engineering Research Center of Biobank, Shanghai, China
| | - Liangliang Ruan
- Shanghai Clinical Research Center, Shanghai, China.,Shanghai Engineering Research Center of Biobank, Shanghai, China
| | - Rongxing Gan
- Shanghai Clinical Research Center, Shanghai, China.,Shanghai Engineering Research Center of Biobank, Shanghai, China
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81
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Li Q, Wang X, Li X, He X, Wan Q, Yin J, Sun J, Yang X, Chen Q, Miao X. Obtaining High-Quality Blood Specimens for Downstream Applications: A Review of Current Knowledge and Best Practices. Biopreserv Biobank 2018; 16:411-418. [PMID: 30383403 DOI: 10.1089/bio.2018.0052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Blood is a biological fluid that contains multiple blood fraction and cellular components. High-quality blood specimens are essential prerequisites for various downstream applications such as molecular epidemiology studies, genomics, and proteomics studies. Currently, protocols and research publications concerning the collection, handling, preservation, and stability of blood or blood fractions are constantly emerging. Moreover, standardized guidelines are a requirement for biorepositories to tightly control preanalytical variables originating from these procedures and obtain high-quality blood specimen for downstream analyses. In this review article, we summarize the best practices and fit-for-purpose protocols regarding blood collection, processing, storage, and stability. In addition, we present some typical quality biomarkers, which could be used to evaluate the integrity of blood specimens.
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Affiliation(s)
- Qiyuan Li
- China National GeneBank-Shenzhen , BGI-Shenzhen, Shenzhen, China
| | - Xian Wang
- China National GeneBank-Shenzhen , BGI-Shenzhen, Shenzhen, China
| | - Xue Li
- China National GeneBank-Shenzhen , BGI-Shenzhen, Shenzhen, China
| | - Xuheng He
- China National GeneBank-Shenzhen , BGI-Shenzhen, Shenzhen, China
| | - Qian Wan
- China National GeneBank-Shenzhen , BGI-Shenzhen, Shenzhen, China
| | - Jiefang Yin
- China National GeneBank-Shenzhen , BGI-Shenzhen, Shenzhen, China
| | - Jianbo Sun
- China National GeneBank-Shenzhen , BGI-Shenzhen, Shenzhen, China
| | - Xiaoping Yang
- China National GeneBank-Shenzhen , BGI-Shenzhen, Shenzhen, China
| | - Qiaohong Chen
- China National GeneBank-Shenzhen , BGI-Shenzhen, Shenzhen, China
| | - Xinyuan Miao
- China National GeneBank-Shenzhen , BGI-Shenzhen, Shenzhen, China
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82
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Yishai Aviram L, Magen M, Chapman S, Neufeld Cohen A, Lazar S, Dagan S. Dry Blood Spot sample collection for post-exposure monitoring of chemical warfare agents – In vivo determination of phosphonic acids using LC-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1093-1094:60-65. [DOI: 10.1016/j.jchromb.2018.06.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 06/07/2018] [Accepted: 06/17/2018] [Indexed: 02/06/2023]
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83
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Saini NK, Sulochana SP, Kiran V, Zainuddin M, Mullangi R. A novel dried blood spot LC-MS/MS method for the quantification of apalutamide in mouse whole blood: Application to pharmacokinetic study in mice. Biomed Chromatogr 2018; 32:e4344. [DOI: 10.1002/bmc.4344] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 07/04/2018] [Accepted: 07/05/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Neeraj Kumar Saini
- Drug Metabolism and Pharmacokinetics, Jubilant Biosys, 2 Stage, Industrial Suburb; Bangalore India
| | - Suresh P. Sulochana
- Drug Metabolism and Pharmacokinetics, Jubilant Biosys, 2 Stage, Industrial Suburb; Bangalore India
| | - Vinay Kiran
- Drug Metabolism and Pharmacokinetics, Jubilant Biosys, 2 Stage, Industrial Suburb; Bangalore India
| | - Mohd Zainuddin
- Drug Metabolism and Pharmacokinetics, Jubilant Biosys, 2 Stage, Industrial Suburb; Bangalore India
| | - Ramesh Mullangi
- Drug Metabolism and Pharmacokinetics, Jubilant Biosys, 2 Stage, Industrial Suburb; Bangalore India
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84
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Chantada-Vázquez MP, Moreda–Piñeiro J, Cantarero–Roldán A, Bermejo-Barrera P, Moreda-Piñeiro A. Development of dried serum spot sampling techniques for the assessment of trace elements in serum samples by LA-ICP-MS. Talanta 2018; 186:169-175. [DOI: 10.1016/j.talanta.2018.04.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 04/09/2018] [Accepted: 04/16/2018] [Indexed: 01/13/2023]
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85
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Mathieu-Daudé F, Claverie A, Plichart C, Boulanger D, Mphande FA, Bossin HC. Specific human antibody responses to Aedes aegypti and Aedes polynesiensis saliva: A new epidemiological tool to assess human exposure to disease vectors in the Pacific. PLoS Negl Trop Dis 2018; 12:e0006660. [PMID: 30040826 PMCID: PMC6075770 DOI: 10.1371/journal.pntd.0006660] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 08/03/2018] [Accepted: 07/03/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Aedes mosquitoes severely affect the health and wellbeing of human populations by transmitting infectious diseases. In French Polynesia, Aedes aegypti is the main vector of dengue, chikungunya and Zika, and Aedes polynesiensis the primary vector of Bancroftian filariasis and a secondary vector of arboviruses. Tools for assessing the risk of disease transmission or for measuring the efficacy of vector control programmes are scarce. A promising approach to quantify the human-vector contact relies on the detection and the quantification of antibodies directed against mosquito salivary proteins. METHODOLOGY/PRINCIPAL FINDINGS An ELISA test was developed to detect and quantify the presence of immunoglobulin G (IgG) directed against proteins from salivary gland extracts (SGE) of Ae. aegypti and Ae. polynesiensis in human populations exposed to either species, through a cross-sectional study. In Tahiti and Moorea islands where Ae. aegypti and Ae. polynesiensis are present, the test revealed that 98% and 68% of individuals have developed IgG directed against Ae. aegypti and Ae. polynesiensis SGE, respectively. By comparison, ELISA tests conducted on a cohort of people from metropolitan France, not exposed to these Aedes mosquitoes, indicated that 97% of individuals had no IgG directed against SGE of either mosquito species. The analysis of additional cohorts representing different entomological Aedes contexts showed no ELISA IgG cross-reactivity between Ae. aegypti and Ae. polynesiensis SGE. CONCLUSIONS/SIGNIFICANCE The IgG response to salivary gland extracts seems to be a valid and specific biomarker of human exposure to the bites of Ae. aegypti and Ae. polynesiensis. This new immuno-epidemiological tool will enhance our understanding of people exposure to mosquito bites, facilitate the identification of areas where disease transmission risk is high and permit to evaluate the efficacy of novel vector control strategies in Pacific islands and other tropical settings.
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Affiliation(s)
- Françoise Mathieu-Daudé
- UMR MIVEGEC, IRD, CNRS, UM, Institut de Recherche pour le Développement, Nouméa, Nouvelle-Calédonie
- UMR MIVEGEC IRD, CNRS, UM, Institut de Recherche pour le Développement, Montpellier, France
| | - Aurore Claverie
- Pôle de recherche et de veille sur les maladies infectieuses émergentes, Institut Louis Malardé, Papeete, Tahiti, Polynésie française
- Laboratoire d’entomologie médicale, Institut Louis Malardé, Paea, Tahiti, Polynésie française
| | - Catherine Plichart
- Pôle de recherche et de veille sur les maladies infectieuses émergentes, Institut Louis Malardé, Papeete, Tahiti, Polynésie française
| | - Denis Boulanger
- UMR MIVEGEC IRD, CNRS, UM, Institut de Recherche pour le Développement, Montpellier, France
| | - Fingani A. Mphande
- UMR MIVEGEC, IRD, CNRS, UM, Institut de Recherche pour le Développement, Nouméa, Nouvelle-Calédonie
| | - Hervé C. Bossin
- Laboratoire d’entomologie médicale, Institut Louis Malardé, Paea, Tahiti, Polynésie française
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87
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Markwalter CF, Gibson LE, Mudenda L, Kimmel DW, Mbambara S, Thuma PE, Wright DW. Characterization of Plasmodium Lactate Dehydrogenase and Histidine-Rich Protein 2 Clearance Patterns via Rapid On-Bead Detection from a Single Dried Blood Spot. Am J Trop Med Hyg 2018; 98:1389-1396. [PMID: 29557342 PMCID: PMC5953395 DOI: 10.4269/ajtmh.17-0996] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
A rapid, on-bead enzyme-linked immunosorbent assay for Plasmodium lactate dehydrogenase (pLDH) and Plasmodium falciparum histidine-rich protein 2 (HRP2) was adapted for use with dried blood spot (DBS) samples. This assay detected both biomarkers from a single DBS sample with only 45 minutes of total incubation time and detection limits of 600 ± 500 pM (pLDH) and 69 ± 30 pM (HRP2), corresponding to 150 and 24 parasites/μL, respectively. This sensitive and reproducible on-bead detection method was used to quantify pLDH and HRP2 in patient DBS samples from rural Zambia collected at multiple time points after treatment. Biomarker clearance patterns relative to parasite clearance were determined; pLDH clearance followed closely with parasite clearance, whereas most patients maintained detectable levels of HRP2 for 35–52 days after treatment. Furthermore, weak-to-moderate correlations between biomarker concentration and parasite densities were found for both biomarkers. This work demonstrates the utility of the developed assay for epidemiological study and surveillance of malaria.
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Affiliation(s)
| | - Lauren E Gibson
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee
| | - Lwiindi Mudenda
- Rusangu University, Monze, Zambia.,Department of Chemistry, Vanderbilt University, Nashville, Tennessee
| | - Danielle W Kimmel
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee
| | | | | | - David W Wright
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee
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88
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Incorporating dried blood spot LC–MS/MS analysis for clinical development of a novel oncolytic agent. Bioanalysis 2018; 10:341-356. [DOI: 10.4155/bio-2017-0231] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Aim: Design and execution of a dried blood spot (DBS-LC–MS/MS) assay for pharmacokinetic analyses in oncology patients. Results & discussion: The methodology was validated to collect and store DBS samples from multiple clinical sites, and analyze blood with diverse hematocrit ranges (25–55) to match the potential patient population. Bridging data comparing DBS and plasma showed high degree of concordance with DBS:plasma ratios of 0.81, demonstrating no preferential uptake or association with cellular components of the blood. Pharmacokinetic analysis supporting clinical development was performed using 20 μl of blood collected as DBS. Incurred sample reanalysis showed high correlation. Conclusion: Successful validation of a DBS method and implementation in the clinic enabled pharmacokinetic analysis during the clinical development of a novel oncolytic agent in oncology patients.
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89
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Preece RL, Han SYS, Bahn S. Proteomic approaches to identify blood-based biomarkers for depression and bipolar disorders. Expert Rev Proteomics 2018; 15:325-340. [DOI: 10.1080/14789450.2018.1444483] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Rhian Lauren Preece
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
| | - Sung Yeon Sarah Han
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
| | - Sabine Bahn
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
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90
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Kim UJ, Kannan K. Method for the Determination of Iodide in Dried Blood Spots from Newborns by High Performance Liquid Chromatography Tandem Mass Spectrometry. Anal Chem 2018; 90:3291-3298. [PMID: 29412637 DOI: 10.1021/acs.analchem.7b04827] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Dried blood spots (DBS), collected for newborn screening programs in the United States, have been used to screen for congenital metabolic diseases in newborns for over 50 years. DBS provide an easy and inexpensive way to collect and store peripheral blood specimens and present an excellent resource for studies on the assessment of chemical exposures in newborns. In this study, a selective and sensitive method was developed for the analysis of iodide in DBS by high performance liquid chromatography electrospray tandem mass spectrometry. Accuracy, inter- and intraday precision, matrix effects, and detection limits of the method were determined. Further validation of the method was accomplished by concurrent analysis of whole blood and fortified blood spotted on a Whatman 903 filter card. A significant positive correlation was found between measured concentrations of iodide in venous whole blood and the same blood spotted as DBS. The method limit of detection was 0.15 ng/mL iodide. The method was further validated by the analysis of a whole blood sample certified for iodide levels (proficiency testing sample) by spotting on a filter card. Twenty DBS samples collected from newborns in New York State were analyzed to demonstrate the applicability of the method. The measured concentrations of iodide in whole blood of newborns from New York State ranged between <LOD and 16.4 ng/mL. The developed method is applicable for the analysis of DBS collected for epidemiological studies that investigate the importance of iodide on the health of newborns.
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Affiliation(s)
- Un-Jung Kim
- Wadsworth Center, New York State Department of Health, and Department of Environmental Health Sciences, School of Public Health , State University of New York at Albany , Empire State Plaza, P.O. Box 509 , Albany , New York 12201-0509 , United States
| | - Kurunthachalam Kannan
- Wadsworth Center, New York State Department of Health, and Department of Environmental Health Sciences, School of Public Health , State University of New York at Albany , Empire State Plaza, P.O. Box 509 , Albany , New York 12201-0509 , United States.,Biochemistry Department, Faculty of Science and Experimental Biochemistry Unit, King Fahd Medical Research Center , King Abdulaziz University , Jeddah 21589 , Saudi Arabia
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91
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Dried matrix spots and clinical elemental analysis. Current status, difficulties, and opportunities. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.12.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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92
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Iyer AS, Azman AS, Bouhenia M, Deng LO, Anderson CP, Graves M, Kováč P, Xu P, Ryan ET, Harris JB, Sack DA, Luquero FJ, Leung DT. Dried Blood Spots for Measuring Vibrio cholerae-specific Immune Responses. PLoS Negl Trop Dis 2018; 12:e0006196. [PMID: 29377882 PMCID: PMC5805362 DOI: 10.1371/journal.pntd.0006196] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 02/08/2018] [Accepted: 12/28/2017] [Indexed: 02/03/2023] Open
Abstract
Background Vibrio cholerae causes over 2 million cases of cholera and 90,000 deaths each year. Serosurveillance can be a useful tool for estimating the intensity of cholera transmission and prioritizing populations for cholera control interventions. Current methods involving venous blood draws and downstream specimen storage and transport methods pose logistical challenges in most settings where cholera strikes. To overcome these challenges, we developed methods for determining cholera-specific immune responses from dried blood spots (DBS). Methodology/principal findings As conventional vibriocidal assay methods were unsuitable for DBS eluates from filter paper, we adopted a drop-plate culture method. We show that DBS collected from volunteers in South Sudan, and stored for prolonged periods in field conditions, retained functional vibriocidal antibodies, the titers of which correlated with paired serum titers determined by conventional spectrophotometric methods (r = 0.94, p = 0.00012). We also showed that eluates from DBS Serum Separator cards could be used with conventional spectrophotometric vibriocidal methods, and that they correlated with paired serum at a wide range of titers (r = 0.96, p<0.0001). Similarly, we used ELISA methods to show that V. cholerae O-specific polysaccharide antibody responses from DBS eluates correlated with results from paired serum for IgG (r = 0.85, p = 0.00006), IgM (r = 0.79, p = 0.00049) and IgA (r = 0.73, p = 0.0019), highlighting its potential for use in determination of isotype-specific responses. Storage of DBS cards at a range of temperatures did not change antibody responses. Conclusion In conclusion, we have developed and demonstrated a proof-of-concept for assays utilizing DBS for assessing cholera-specific immune responses. Cholera remains a major public health issue among underprivileged populations in the developing world. Current methods of disease surveillance are inadequate for identifying key populations at highest risk of cholera. Serosurveillance can provide accurate measurements of an individual or population’s exposure to cholera infection or oral cholera vaccine (OCV) induced immunity, though they require venous blood draw and stringent processing needs. Dried blood spots (DBS) overcome these challenges, acting as a portable surveillance tool suitable for field use. We developed a drop-plate culture method for evaluating vibriocidal and cholera-specific isotype responses using DBS from OCV-immunized volunteers from South Sudan. Blood equivalent to only two drops were spotted on Whatman Protein Saver (WPS) DBS cards. Vibriocidal titers from WPS eluates determined by drop-plate culture methods correlated well with serum based assays. In addition, by using DBS cards capable of automatic separation of serum from blood, we demonstrate that vibriocidal titers and V. cholerae polysaccharide antibody responses could be measured by conventional spectrophotometric methods and that these responses are stable over a range of storage temperatures. In summary, we show that cholera-specific immune responses can be measured using DBS, providing a potential tool for large-scale serosurveillance field studies for cholera.
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Affiliation(s)
- Anita S. Iyer
- Division of Infectious Diseases, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT, United States of America
| | - Andrew S. Azman
- Department of Epidemiology, John Hopkins University, Baltimore, MD, United States of America
- Médecins Sans Frontières, Geneva, Switzerland
| | - Malika Bouhenia
- Department of Pandemic and Epidemic Diseases, World Health Organization, Juba, South Sudan
| | - Lul O. Deng
- National Public Health Laboratory, Republic of South Sudan Ministry of Health, Juba, South Sudan
| | - Cole P. Anderson
- Division of Infectious Diseases, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT, United States of America
| | - Michael Graves
- Division of Infectious Diseases, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT, United States of America
| | - Pavol Kováč
- National Institute of Diabetes, Digestive and Kidney Diseases (NIDDK), Laboratory of Bioorganic Chemistry (LBC), National Institutes of Health, Bethesda, Maryland, United States of America
| | - Peng Xu
- National Institute of Diabetes, Digestive and Kidney Diseases (NIDDK), Laboratory of Bioorganic Chemistry (LBC), National Institutes of Health, Bethesda, Maryland, United States of America
| | - Edward T. Ryan
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, United States of America
- Department of Medicine, Harvard Medical School, Boston, MA, United States of America
- Department of Immunology & Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America
| | - Jason B. Harris
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, United States of America
- Department of Pediatrics, Harvard Medical School, Boston, MA, United States of America
| | - David A. Sack
- Department of International Health, John Hopkins University, Baltimore, MD, United States
| | - Francisco J. Luquero
- Department of International Health, John Hopkins University, Baltimore, MD, United States
- Epicentre, Paris, France
| | - Daniel T. Leung
- Division of Infectious Diseases, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT, United States of America
- Division of Microbiology & Immunology, Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT, United States of America
- * E-mail:
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93
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Bjornstad P, Karger AB, Maahs DM. Measured GFR in Routine Clinical Practice-The Promise of Dried Blood Spots. Adv Chronic Kidney Dis 2018; 25:76-83. [PMID: 29499891 DOI: 10.1053/j.ackd.2017.09.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 09/17/2017] [Accepted: 09/20/2017] [Indexed: 12/31/2022]
Abstract
Accurate determination of glomerular filtration rate (GFR) is crucial for the diagnosis of kidney disease. Estimated GFR (eGFR) calculated by serum creatinine and/or cystatin C is a mainstay in clinical practice and epidemiologic research but lacks precision and accuracy until GFR <60 mL/min/1.73 m2. Furthermore, eGFR may not precisely and accurately represent changes in GFR longitudinally. The lack of precision and accuracy is of concern in populations at high risk for kidney disease, as the dissociation between changes in eGFR and GFR may lead to missed diagnoses of early kidney disease. Therefore, improved methods to quantify GFR are needed. Whereas direct measures of GFR have been too cumbersome for screening and ambulatory care, a practical method of measuring GFR by iohexol clearance using dried capillary blood spots exists. In this review, we examine the current literature and data addressing GFR measurements by dried capillary blood spots and its potential application in high-risk groups.
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94
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Affiliation(s)
- Kapil Gupta
- Department of Biochemistry, Adesh Institute of Medical Sciences and Research, Bathinda, Punjab, India
| | - Rajiv Mahajan
- Department of Pharmacology, Adesh Institute of Medical Sciences and Research, Bathinda, Punjab, India
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Cordell RL, Valkenburg TSE, Pandya HC, Hawcutt DB, Semple MG, Monks PS. Quantitation of salbutamol using micro-volume blood sampling - applications to exacerbations of pediatric asthma. J Asthma 2017; 55:1205-1213. [PMID: 29211599 DOI: 10.1080/02770903.2017.1402341] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVES A novel gas chromatography-mass spectrometry (GC-MS) method has been developed to quantify salbutamol in micro-volumes (10 µL) of blood. A potential application is paediatric therapeutic dose monitoring (TDM) in acute severe asthma. METHODS At presentation, the children receive multiple doses of salbutamol (inhaled, nebulised and occasionally intravenous) but it is difficult to distinguish children who do not respond to treatment because of inadequate concentrations from those with toxicity, as symptoms are similar. A comparison was made between traditional dried blood spots (DBS) and the newly developed technique volumetric absorptive micro-sampling (VAMS), with specific investigation into the effect of drying time on analyte recovery. RESULTS For both sampling techniques, the final assay demonstrated good precision and accuracy across the concentration range tested (3-100 ng/mL), including both the normal therapeutic and toxic range. The method was developed to comply with FDA guidelines with precision and accuracy ≤15% for all concentrations, except the limit of quantification (5 ng/mL) where they were ≤20%. VAMS offered advantages in sampling ease and reduced GC-MS interference. The assay was successfully applied to the quantification of blood salbutamol concentrations in three healthy volunteers dosed with 1 mg salbutamol by inhalation. CONCLUSIONS This demonstrated its potential for use in paediatric TDM studies, where in the acute situation considerably higher doses of salbutamol will have been administered. This is the first time that a TDM method for salbutamol has been carried out using VAMS and offers all the advantages provided by DBS, whilst eliminating the inherent sampling volume inaccuracies of traditional DBS collection.
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Affiliation(s)
- Rebecca L Cordell
- a Department of Chemistry , University of Leicester , Leicester , LE1 7RH , UK
| | | | - Hitesh C Pandya
- b Department of Infection, Immunity and Inflammation , University of Leicester , Leicester , LE1 7RH , UK.,c Respiratory TAU and Flexible Discovery , GlaxoSmithKline Stevenage , Hertfordshire SG1 2NY , UK
| | - Daniel B Hawcutt
- d Department of Women's and Children's Health, Institute of Translational Medicine , University of Liverpool , Liverpool , L69 3BX , UK
| | - Malcolm G Semple
- d Department of Women's and Children's Health, Institute of Translational Medicine , University of Liverpool , Liverpool , L69 3BX , UK
| | - Paul S Monks
- a Department of Chemistry , University of Leicester , Leicester , LE1 7RH , UK
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96
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Nys G, Kok MG, Servais AC, Fillet M. Beyond dried blood spot: Current microsampling techniques in the context of biomedical applications. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.10.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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97
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Freeman JD, Rosman LM, Ratcliff JD, Strickland PT, Graham DR, Silbergeld EK. State of the Science in Dried Blood Spots. Clin Chem 2017; 64:656-679. [PMID: 29187355 DOI: 10.1373/clinchem.2017.275966] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 09/25/2017] [Indexed: 12/22/2022]
Abstract
BACKGROUND Advancements in the quality and availability of highly sensitive analytical instrumentation and methodologies have led to increased interest in the use of microsamples. Among microsamples, dried blood spots (DBS) are the most well-known. Although there have been a variety of review papers published on DBS, there has been no attempt at describing the full range of analytes measurable in DBS, or any systematic approach published for characterizing the strengths and weaknesses associated with adoption of DBS analyses. CONTENT A scoping review of reviews methodology was used for characterizing the state of the science in DBS. We identified 2018 analytes measured in DBS and found every common analytic method applied to traditional liquid samples had been applied to DBS samples. Analytes covered a broad range of biomarkers that included genes, transcripts, proteins, and metabolites. Strengths of DBS enable its application in most clinical and laboratory settings, and the removal of phlebotomy and the need for refrigeration have expanded biosampling to hard-to-reach and vulnerable populations. Weaknesses may limit adoption in the near term because DBS is a nontraditional sample often requiring conversion of measurements to plasma or serum values. Opportunities presented by novel methodologies may obviate many of the current limitations, but threats around the ethical use of residual samples must be considered by potential adopters. SUMMARY DBS provide a wide range of potential applications that extend beyond the reach of traditional samples. Current limitations are serious but not intractable. Technological advancements will likely continue to minimize constraints around DBS adoption.
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Affiliation(s)
- Jeffrey D Freeman
- National Health Mission Area, Johns Hopkins University Applied Physics Laboratory, Laurel, MD;
| | - Lori M Rosman
- Welch Medical Library, Johns Hopkins University, Baltimore, MD
| | - Jeremy D Ratcliff
- Public Health Studies Program, Krieger School of Arts and Sciences, Johns Hopkins University, Baltimore, MD
| | - Paul T Strickland
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD
| | - David R Graham
- Department of Molecular and Comparative Pathobiology, School of Medicine, Johns Hopkins University, Baltimore, MD
| | - Ellen K Silbergeld
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD
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98
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Spotting of external calibration standards on blank dried blood spots as a resource-sparing protocol. Bioanalysis 2017; 9:1441-1450. [PMID: 29056076 DOI: 10.4155/bio-2017-0143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
AIM Dried blood spots (DBS) offer significant ethical and scientific advantages; however preparation of calibration curves often times, off-sets some of these advantages. We have developed a methodology wherein small volumes of external calibration standards can be spiked on to blank DBS cards. RESULTS A total of 2 μl of stock solution spotted on to blank blood spots yielded concentrations that were comparable to those obtained using conventional DBS method. The stability of six analytes on 10-day-old blank spots was within 80-120%. The new methodology was successfully applied to a hydroxycholorquine mouse pharmacokinetics study. CONCLUSION Blank DBS samples can be opportunistically prepared from overweight or satellite animals, be stored, and subsequently spiked with standards to prepare calibration standards.
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99
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Gibson LE, Markwalter CF, Kimmel DW, Mudenda L, Mbambara S, Thuma PE, Wright DW. Plasmodium falciparum HRP2 ELISA for analysis of dried blood spot samples in rural Zambia. Malar J 2017; 16:350. [PMID: 28835253 PMCID: PMC5569460 DOI: 10.1186/s12936-017-1996-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 08/09/2017] [Indexed: 11/10/2022] Open
Abstract
Background Dried blood spots are commonly used for sample collection in clinical and non-clinical settings. This method is simple, and biomolecules in the samples remain stable for months at room temperature. In the field, blood samples for the study and diagnosis of malaria are often collected on dried blood spot cards, so development of a biomarker extraction and analysis method is needed. Methods A simple extraction procedure for the malarial biomarker Plasmodium falciparum histidine-rich protein 2 (HRP2) from dried blood spots was optimized to achieve maximum extraction efficiency. This method was used to assess the stability of HRP2 in dried blood spots. Furthermore, 328 patient samples made available from rural Zambia were analysed for HRP2 using the developed method. These samples were collected at the initial administration of artemisinin-based combination therapy and at several points following treatment. Results An average extraction efficiency of 70% HRP2 with a low picomolar detection limit was achieved. In specific storage conditions HRP2 was found to be stable in dried blood spots for at least 6 months. Analysis of patient samples showed the method to have a sensitivity of 94% and a specificity of 89% when compared with microscopy, and trends in HRP2 clearance after treatment were observed. Conclusions The dried blood spot ELISA for HRP2 was found to be sensitive, specific and accurate. The method was effectively used to assess biomarker clearance characteristics in patient samples, which prove it to be ideal for gaining further insight into the disease and epidemiological applications. Electronic supplementary material The online version of this article (doi:10.1186/s12936-017-1996-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lauren E Gibson
- Department of Chemistry, Vanderbilt University, Nashville, TN, 37235, USA.,Department of Chemistry and Biochemistry, Elizabethtown College, Elizabethtown, PA, 17022, USA
| | | | - Danielle W Kimmel
- Department of Chemistry, Vanderbilt University, Nashville, TN, 37235, USA
| | - Lwiindi Mudenda
- Department of Chemistry, Vanderbilt University, Nashville, TN, 37235, USA
| | | | | | - David W Wright
- Department of Chemistry, Vanderbilt University, Nashville, TN, 37235, USA.
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100
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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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