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Ding J, Ding X, Liao W, Lu Z. Red blood cell-derived materials for cancer therapy: Construction, distribution, and applications. Mater Today Bio 2024; 24:100913. [PMID: 38188647 PMCID: PMC10767221 DOI: 10.1016/j.mtbio.2023.100913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/02/2023] [Accepted: 12/11/2023] [Indexed: 01/09/2024] Open
Abstract
Cancer has become an increasingly important public health issue owing to its high morbidity and mortality rates. Although traditional treatment methods are relatively effective, they have limitations such as highly toxic side effects, easy drug resistance, and high individual variability. Meanwhile, emerging therapies remain limited, and their actual anti-tumor effects need to be improved. Nanotechnology has received considerable attention for its development and application. In particular, artificial nanocarriers have emerged as a crucial approach for tumor therapy. However, certain deficiencies persist, including immunogenicity, permeability, targeting, and biocompatibility. The application of erythrocyte-derived materials will help overcome the above problems and enhance therapeutic effects. Erythrocyte-derived materials can be acquired via the application of physical and chemical techniques from natural erythrocyte membranes, or through the integration of these membranes with synthetic inner core materials using cell membrane biomimetic technology. Their natural properties such as biocompatibility and long circulation time make them an ideal choice for drug delivery or nanoparticle biocoating. Thus, red blood cell-derived materials are widely used in the field of biomedicine. However, further studies are required to evaluate their efficacy, in vivo metabolism, preparation, design, and clinical translation. Based on the latest research reports, this review summarizes the biology, synthesis, characteristics, and distribution of red blood cell-derived materials. Furthermore, we provide a reference for further research and clinical transformation by comprehensively discussing the applications and technical challenges faced by red blood cell-derived materials in the treatment of malignant tumors.
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Affiliation(s)
- Jianghua Ding
- Department of Hematology & Oncology, Clinical Medical College/Affiliated Hospital of Jiujiang University, Jiujiang, Jiangxi, 332005, China
- Jiujiang Clinical Precision Medicine Research Center, Jiujiang, Jiangxi, 332005, China
| | - Xinjing Ding
- Oncology of Department, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 332000, China
| | - Weifang Liao
- Jiujiang Clinical Precision Medicine Research Center, Jiujiang, Jiangxi, 332005, China
- Department of Medical Laboratory, Clinical Medical College/Affiliated Hospital of Jiujiang University, Jiujiang, Jiangxi, 332005, China
| | - Zhihui Lu
- Oncology of Department, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 332000, China
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Lee KC, Wan KX, Barricklow J, Lim CN, Clarke S, Potts D, Holmes K, Gonzalez P, Kavetska O. Using Mitra sampling to support first-in-human pharmacokinetic evaluations for PF-07059013. Bioanalysis 2023; 15:1083-1094. [PMID: 37584365 DOI: 10.4155/bio-2023-0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023] Open
Abstract
Aim: A sensitive and selective method for the determination of PF-07059013 in dried blood collected by Mitra™ tips was developed and qualified from 50 to 50,000 ng/ml. Materials & methods: PF-07059013 is isolated from 10 μl of human dried blood by extraction with methanol and analyzed by HPLC-MS/MS. Results & conclusions: In addition to routine validation elements, impact of hematocrit and Mitra tip's lot-to-lot variation on assay accuracy were evaluated. The qualified method was used in one clinical study with excellent performance. Correlation coefficient between blood concentrations obtained from liquid-incurred blood samples and dried-incurred blood samples is 0.95. Clinical Trial Registration: NCT04323124 (ClinicalTrials.gov).
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Affiliation(s)
| | | | | | | | - Stephen Clarke
- York Bioanalytical Solutions, Upper Poppleton, York, YO26 6QR, UK
| | - Daniel Potts
- York Bioanalytical Solutions, Upper Poppleton, York, YO26 6QR, UK
| | - Kevin Holmes
- York Bioanalytical Solutions, Upper Poppleton, York, YO26 6QR, UK
| | - Pilar Gonzalez
- York Bioanalytical Solutions, Upper Poppleton, York, YO26 6QR, UK
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Chaudhari BB, Devadiga BH, Matcha S, Lewis LE, Mallayasamy S, Moorkoth S. Validated HPLC method for ceftriaxone from dried blood spots for pharmacokinetic studies and therapeutic drug monitoring in neonatal population. Bioanalysis 2023. [PMID: 37216211 DOI: 10.4155/bio-2023-0047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023] Open
Abstract
Background: Pharmacokinetic evaluation is essential for the precise dosing of ceftriaxone in neonates. There is a need for developing a sensitive, affordable and convenient analytical method that can estimate ceftriaxone from dried blood spot (DBS) samples of neonates. Method: An HPLC-UV method was developed and validated as per ICH M10 for ceftriaxone from DBS and plasma using an Inertsil-ODS-3V column with gradient elution. DBS samples were extracted with methanol. Clinical validation was performed using neonatal samples. Results: The developed plasma- and DBS-based-HPLC method were linear from 2-700 μg/ml and 2-500 μg/ml, respectively, for ceftriaxone. Bland-Altman analysis indicated a strong interconvertibility between the plasma and DBS assays. Conclusion: Observed concentrations in clinical samples were comparable to the predicted concentrations, proving the clinical validity of the method.
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Affiliation(s)
- Bhim B Chaudhari
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Bhagyashree H Devadiga
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Saikumar Matcha
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Leslie Es Lewis
- Department of Pediatrics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Surulivelrajan Mallayasamy
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Sudheer Moorkoth
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
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Manchanda A, Gupta V, Wu L, Paull B. A thread-based electrofluidic platform for direct transfer, separation, and pre-concentration of materials from sample swabs. Analyst 2023; 148:1543-1551. [PMID: 36880438 DOI: 10.1039/d2an01856j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
A new method and platform has been developed for direct transfer, electrophoretic separation, and pre-concentration of swabbed samples using the principles of thread-based electrofluidics. A direct electrokinetic injection has been observed for a variety of analytes ranging from small molecules to proteins. The effect of physicochemical interactions of the analyte with the swab and the thread on the transfer efficiency has been studied by exploring different swab and thread combinations. For fluorescein, using a polyurethane swab, 98% and 94% transfer efficiencies were observed on mercerised cotton and nylon thread, while only 80% transfer efficiency was observed on polyester thread, respectively. A 97% transfer of fluorescein was observed on the nylon thread when a flocked nylon swab was used, while only 47% transfer was observed when a cotton swab was used. A successful transfer has been observed for both liquid and dry samples from either pre-wetted or dry swabs in both the presence and absence of any surrounding electrolytes. The platform has been further adapted for multiplexed analysis, where a sample from a single swab was transferred onto two parallel thread systems with ca. 50% distribution between them. The method has been validated for transfer, separation, and pre-concentration of DNA from blood. It has also been successfully used to directly analyse dried blood samples using a commercial sampling device, Neoteryx Mitra.
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Affiliation(s)
- Arushi Manchanda
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart 7001, Australia. .,ARC Centre of Excellence for Electromaterials Sciences (ACES), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Vipul Gupta
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart 7001, Australia. .,ARC Centre of Excellence for Electromaterials Sciences (ACES), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Liang Wu
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart 7001, Australia. .,ARC Centre of Excellence for Electromaterials Sciences (ACES), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Brett Paull
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart 7001, Australia. .,ARC Centre of Excellence for Electromaterials Sciences (ACES), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
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5
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Samsonova JV, Saushkin NY, Osipov AP. Dried Blood Spots technology for veterinary applications and biological investigations: technical aspects, retrospective analysis, ongoing status and future perspectives. Vet Res Commun 2022; 46:655-698. [PMID: 35771305 PMCID: PMC9244892 DOI: 10.1007/s11259-022-09957-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 06/13/2022] [Indexed: 11/25/2022]
Abstract
Dried Blood Spots (DBS) technology has become a valuable tool in medical studies, however, in veterinary and biological research DBS technology applications are still limited. Up-to-date no review has comprehensively integrated all the evidence existing across the fields, technologies and animal species. In this paper we summarize the current applications of DBS technology in the mentioned areas, and provide a scope of different types of dried sample carriers (cellulose and non-cellulose), sampling devices, applicable methods for analyte extraction and detection. Mammals, birds, insects and other species are represented as the study objects. Besides the blood, the review considers a variety of specimens, such as milk, saliva, tissue samples and others. The main applications of dried samples highlighted in the review include epidemiological surveys and monitoring for infections agents or specific antibodies for disease/vaccination control in households and wildlife. Besides the genetic investigations, the paper describes detection of environmental contaminants, pregnancy diagnosis and many other useful applications of animal dried samples. The paper also analyses dried sample stability and storage conditions for antibodies, viruses and other substances. Finally, recent developments and future research for DBS technology in veterinary medicine and biological sciences are discussed.
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Affiliation(s)
- Jeanne V Samsonova
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow, Russia.
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Samsonova JV, Saushkin NY, Osipov AP. Dried Samples of Biological Fluids on Porous Membranes as a Promising Sample Preparation Method for Biomedical and Veterinary Diagnostics. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822040104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Reinhardt B, Taylor R, Dawkins C, Banks T, Watson N, Sundaram A, Ewing D, Danko JR. The use of dried blood spot cards to assess serologic responses of individuals vaccinated against measles, hepatitis A, tetanus, influenza and varicella zoster. PLoS One 2022; 17:e0265813. [PMID: 35324972 PMCID: PMC8947131 DOI: 10.1371/journal.pone.0265813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 03/08/2022] [Indexed: 11/19/2022] Open
Abstract
Traditional blood sampling by venipuncture is cumbersome and relatively expensive. Dried blood spot (DBS) sampling is desirable because of its ease of sample collection, transportation and storage. It has been used in clinical diagnosis but not been thoroughly studied for the potential use to assess the immune status of individuals following natural infection or preventive vaccination. The goal of this study was to compare DBS to traditional blood samplings in detection of antibodies in individuals vaccinated against measles, hepatitis A, tetanus, influenza and varicella zoster. Enzyme linked immunosorbent assay (ELISA) was used to test DBS eluates and serum samples for antibodies against measles, varicella, tetanus and hepatitis A. Sensitivities, specificities, and correlation coefficients were evaluated to compare optical density (OD) values of paired serum and DBS samples. The long-term stability of DBS samples at different temperatures was assessed using simulated immune measles blood. DBS OD was highly correlated with serum OD for antibodies to measles (r = 0.93), varicella (r = 0.82), and tetanus (r = 0.91). Sensitivities of DBS OD ranged from 86–99% and specificities ranged from 96–100% using cut-offs established by each assay. By contrast, the hepatitis A data showed a low sensitivity (31%) and weak correlation (r = 0.14) between DBS and serum samples. Antibody titers in serum samples for anti-influenza A (H1N1 and H3N1) failed to correlate in DBS eluates in HAI and MN assays. DBS samples were stable for 4 weeks when stored at room temperature and for 6 months at 4°C. DBS sampling was sensitive, specific, and highly correlated with traditional venipuncture sampling in detection of antibodies against measles, tetanus and varicella zoster, but not hepatitis A and influenza. Thus, the success of using DBS sampling to assess the antibody levels in immunized individuals may be dependent on the pathogens and the development of the assay used.
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Affiliation(s)
- Brian Reinhardt
- Department of Research Programs, Walter Reed National Military Medical Center, Bethesda, Maryland, United States of America
| | - Robert Taylor
- Department of Research Programs, Walter Reed National Military Medical Center, Bethesda, Maryland, United States of America
| | - Colin Dawkins
- Henry Jackson Foundation, Bethesda, Maryland, United States of America
| | - Taylor Banks
- Department of Allergy/Immunology, Naval Medical Center Portsmouth, Portsmouth, Virginia, United States of America
| | - Nora Watson
- Department of Research Programs, Walter Reed National Military Medical Center, Bethesda, Maryland, United States of America
| | - Appavu Sundaram
- Henry Jackson Foundation, Bethesda, Maryland, United States of America
- Department of Viral and Rickettsial Diseases, Naval Medical Research Center, Silver Spring, Maryland, United States of America
| | - Daniel Ewing
- Department of Viral and Rickettsial Diseases, Naval Medical Research Center, Silver Spring, Maryland, United States of America
| | - Janine Ruth Danko
- Infectious Disease Service, Walter Reed National Military Medical Center, Bethesda, Maryland, United States of America
- * E-mail:
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Qu M, Xue P, Zhang Q, Lu T, Liu K, Hu B, Pang J, Xiao Q, Xu T, Wang Q, Cheng Z. Pharmacokinetics, oral bioavailability and metabolic analysis of solasodine in mice by dried blood spot LC-MS/MS and UHPLC-Q-Exactive MS. J Pharm Biomed Anal 2021; 210:114542. [PMID: 34979491 DOI: 10.1016/j.jpba.2021.114542] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 12/13/2022]
Abstract
Solasodine, a major ingredient in Solanaceae family, has various biological functions such as inducing neurogenesis, anticonvulsant and anti-tumor. Its risk assessment has also drawn public attention. However, little is known about its oral bioavailability and metabolic process. In this study, an liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed for the quantification of solasodine in mice dried blood spot (DBS) samples. To block nonspecific adsorption, DBS samples were pretreated with bovine serum albumin (BSA) and then extracted with ethyl acetate. This method was applied to a pharmacokinetic and bioavailability study of solasodine. The absolute bioavailability was only 1.28%. Thereafter, its metabolites in mice were characterized using an ultra-performance liquid chromatography Q-Exactive high-resolution mass spectrometer (UHPLC-QE-HRMS). Several isomeric metabolites were well separated and differentiated using their retention time, fragmentation pathways and correspondingly fragmentation rules of solasodine. As a result, 21 metabolites were characterized including 16 phase I and 5 phase II metabolites. The proposed metabolic pathways showed that solasodine mainly experienced oxidation, dehydration, dehydrogenation and sulfation. These results could help us to better understand the efficacy and safety of solasodine.
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Affiliation(s)
- Mei Qu
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Peng Xue
- School of Public Health, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Qi Zhang
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Tiantian Lu
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Kun Liu
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Bingying Hu
- Zhejiang Key Laboratory of Neuropsychiatric Drug Research, School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 310013, China
| | - Jingjing Pang
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Qianqian Xiao
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Tongxin Xu
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China
| | - Quande Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yucai Road, Qixing District, Guilin, Guangxi 541004, China
| | - Zhongzhe Cheng
- School of Pharmacy, Weifang Medical University, 7166 Baotong West Street, Weifang, Shandong 261053, China.
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Kleijne VD, Kohler I, C Heijboer A, Ackermans MT. Solutions for hematocrit bias in dried blood spot hormone analysis. Bioanalysis 2021; 13:1293-1308. [PMID: 34470479 DOI: 10.4155/bio-2021-0119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Over the last years, dried blood spot (DBS) sampling has gained significant interest due to development of analytical techniques combined with DBS, the simplicity and low cost of the method. Despite its wide use, DBS sampling can lead to inaccurate results due to the impact of the hematocrit (Hct) on the analysis. Some analytes have shown to be hardly impacted by Hct values. However, in other cases, a significant impact of Hct is observed, which requires the use of alternative approaches to circumvent this issue. This review describes the possible impact of Hct-related bias in DBS sampling in the context of hormone analysis and discusses the different methodologies that can be used to overcome this bias to ensure accurate results.
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Affiliation(s)
- Vera de Kleijne
- Department of Clinical Chemistry, Endocrine Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Isabelle Kohler
- Division of BioAnalytical Chemistry, Amsterdam Institute of Molecular & Life Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Center for Analytical Sciences Amsterdam, Amsterdam, The Netherlands
| | - Annemieke C Heijboer
- Department of Clinical Chemistry, Endocrine Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Clinical Chemistry, Endocrine Laboratory, Amsterdam UMC, Vrije Universiteit Amsterdam, The Netherlands
| | - Mariëtte T Ackermans
- Department of Clinical Chemistry, Endocrine Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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Fustec B, Phanitchat T, Aromseree S, Pientong C, Thaewnongiew K, Ekalaksananan T, Cerqueira D, Poinsignon A, Elguero E, Bangs MJ, Alexander N, Overgaard HJ, Corbel V. Serological biomarker for assessing human exposure to Aedes mosquito bites during a randomized vector control intervention trial in northeastern Thailand. PLoS Negl Trop Dis 2021; 15:e0009440. [PMID: 34043621 PMCID: PMC8189451 DOI: 10.1371/journal.pntd.0009440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 06/09/2021] [Accepted: 05/04/2021] [Indexed: 01/21/2023] Open
Abstract
Background Aedes mosquitoes are vectors for several major arboviruses of public health concern including dengue viruses. The relationships between Aedes infestation and disease transmission are complex wherein the epidemiological dynamics can be difficult to discern because of a lack of robust and sensitive indicators for predicting transmission risk. This study investigates the use of anti-Aedes saliva antibodies as a serological biomarker for Aedes mosquito bites to assess small scale variations in adult Aedes density and dengue virus (DENV) transmission risk in northeastern Thailand. Individual characteristics, behaviors/occupation and socio-demographics, climatic and epidemiological risk factors associated with human-mosquito exposure are also addressed. Methods The study was conducted within a randomized clustered control trial in Roi Et and Khon Kaen provinces over a consecutive 19 months period. Thirty-six (36) clusters were selected, each of ten houses. Serological and entomological surveys were conducted in all houses every four months and monthly in three sentinel households per cluster between September 2017 and April 2019 for blood spot collections and recording concurrent immature and adult Aedes indices. Additionally, the human exposure to Aedes mosquito bites (i.e., Mosquito Exposure Index or MEI) was estimated by ELISA measuring levels of human antibody response to the specific Nterm-34 kDa salivary antigen. The relationships between the MEI, vector infestation indices (adult and immature stages) and vector DENV infection were evaluated using a two-level (house and individual levels) mixed model analysis with one-month lag autoregressive correlation. Results There was a strong positive relationship between the MEI and adult Aedes (indoor and outdoor) density. Individuals from households with a medium mosquito density (mean difference: 0.091, p<0.001) and households with a high mosquito density (mean difference: 0.131, p<0.001) had higher MEI’s compared to individuals from households without Aedes. On a similar trend, individuals from households with a low, medium or high indoor Aedes densities (mean difference: 0.021, p<0.007, 0.053, p<0.0001 and 0.037, p<0.0001 for low, medium and high levels of infestation, respectively) had higher MEI than individuals from houses without indoor Aedes. The MEI was driven by individual characteristics, such as gender, age and occupation/behaviors, and varied according to climatic, seasonal factors and vector control intervention (p<0.05). Nevertheless, the study did not demonstrate a clear correlation between MEI and the presence of DENV-infected Aedes. Conclusion This study represents an important step toward the validation of the specific IgG response to the Aedes salivary peptide Nterm-34kDa as a proxy measure for Aedes infestation levels and human-mosquito exposure risk in a dengue endemic setting. The use of the IgG response to the Nterm-34 kDa peptide as a viable diagnostic tool for estimating dengue transmission requires further investigations and validation in other geographical and transmission settings. Aedes mosquitoes and the viruses they transmit are major public health concerns for over half of the global human population. However, the quantitative relationships between virus transmission and vector mosquito infestation remain unclear despite numerous indicators used to estimate transmission risk and predict dengue outbreaks. The aim of this study is to investigate the use of a salivary biomarker to assess the small-scale variation in human exposure to Aedes bites and the risk of dengue infection in the context of a vector control intervention in northeastern Thailand. A cohort of 539 persons visited every four months, including 161 individuals visited monthly, were recruited for routine serological and concurrent household entomological surveys during 19 consecutive months follow-up. Antibody response to Aedes bites was measured by enzyme-linked immunosorbent assays to assess the mosquito exposure index (MEI) and association with the Aedes adult and immature abundance as well as the presence of dengue virus (DENV) in adult mosquitoes (transmission risk). Additionally, the individual (cohort), climatic, and vector control intervention risk factors associated with MEI are explored. This study demonstrates that the MEI was strongly related to household adult Aedes density, particularly indoors resting mosquitoes. Additionally, the MEI was influenced by individual characteristics (i.e., person age, gender, staying indoors), and varied according to seasons and intervention. Nonetheless, no clear relationship between MEI and dengue transmission risk (i.e., vector infection) was detected. This study demonstrated the potential usefulness of the MEI to assess heterogeneity in adult Aedes infestation indices that could assist public health authorities to rapidly identify mosquito “hot spots” and the timeliness of effective vector control interventions.
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Affiliation(s)
- Benedicte Fustec
- Univ Montpellier, Montpellier, France
- Khon Kaen University, Khon Kaen, Thailand
- MIVEGEC, Univ Montpellier, IRD, CNRS, Montpellier, France
- * E-mail: (BF); (VC)
| | - Thipruethai Phanitchat
- Department of Medical Entomology, Faculty of Tropical Medicine, Mahidol University, Bangkok
| | - Sirinart Aromseree
- Khon Kaen University, Khon Kaen, Thailand
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
| | - Chamsai Pientong
- Khon Kaen University, Khon Kaen, Thailand
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
| | | | - Tipaya Ekalaksananan
- Khon Kaen University, Khon Kaen, Thailand
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
| | - Dominique Cerqueira
- Public Health & Malaria Control, International SOS, Mimika, Papua, Indonesia
| | | | - Eric Elguero
- MIVEGEC, Univ Montpellier, IRD, CNRS, Montpellier, France
| | - Michael J. Bangs
- Public Health & Malaria Control, International SOS, Mimika, Papua, Indonesia
- Department of Entomology, Faculty of Agriculture, Kasetsart University, Bangkok, Thailand
| | - Neal Alexander
- London School of Hygiene and Tropical Medicine, London, United Kingdom
| | | | - Vincent Corbel
- Univ Montpellier, Montpellier, France
- MIVEGEC, Univ Montpellier, IRD, CNRS, Montpellier, France
- * E-mail: (BF); (VC)
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Abstract
Dried blood spot (DBS) technology has become a promising utility for the transportation and storage of biological fluids aimed for the subsequent clinical analysis. The basis of the DBS method is the adsorption of the components of a biological sample onto the surface of a membrane carrier, followed by drying. After drying, the molecular components of the biosample (nucleic acids, proteins, and metabolites) can be analyzed using modern omics, immunological, or genomic methods. In this work, we investigated the safety of proteins on a membrane carrier by tryptic components over time and at different temperatures (+4, 0, 25 °C) and storage (0, 7, 14, and 35 days). It was shown that the choice of a protocol for preliminary sample preparation for subsequent analytical molecular measurements affects the quality of the experimental results. The protocol for preliminary preparation of a biosample directly in a membrane carrier is preferable compared to the protocol with an additional stage of elution of molecular components before the sample preparation procedures. It was revealed that the composition of biosamples remains stable at a temperature of −20 and +4 °C for 35 days of storage, and at +25 °C for 14 days.
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Technological advancement in dry blood matrix microsampling and its clinical relevance in quantitative drug analysis. Bioanalysis 2020; 12:1483-1501. [DOI: 10.4155/bio-2020-0211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In the past few decades, dried blood matrix biosampling has witnessed a marvelous interest among the researcher due to its user-friendly operation during blood sampling in preclinical and clinical applications. It also complies with the basic 3Rs (reduce, reuse and recycle) philosophy. Because of comparative simplicity, a huge number of researchers are paying attention to its technological advancements for widespread application in the bioanalysis and diagnosis arena. In this review, we have explained different approaches to be considered during dried blood matrix based microsampling including their clinical relevance in therapeutic drug monitoring. We have also discussed various strategies for avoiding and minimizing major unwanted analytical interferences associated with this technique during drug quantification. Further, various recent technological advancement in microsampling devices has been discussed correlating their clinical applications.
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Abstract
Direct ambient ionization techniques have been developed with the aim to reduce the complexity of mass spectrometry analysis by minimizing sample preparation and chromatographic separation. In this context, paper spray-MS (PS-MS) is an innovative approach that provides faster and cheaper analysis of biofluids by the addition of the sample directly to a paper. In forensic toxicology, the analytical workflow for the detection and quantification of drugs of abuse is onerous, including sample treatment, extraction and clean up, especially regarding complex biological matrices. PS-MS allows the detection of analytes of toxicological interest in blood, plasma and urine using low sample volume. This review aims to discuss the potential use, advances and challenges of PS-MS in forensic toxicology.
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Pimenta FC, Moiane B, Lessa FC, Venero AKL, Moura I, Larson S, Massora S, Chaúque A, Tembe N, Mucavele H, Verani JR, Whitney CG, Sigaúque B, Carvalho MGS. Dried blood spots for Streptococcus pneumoniae and Haemophilus influenzae detection and serotyping among children < 5 years old in rural Mozambique. BMC Pediatr 2020; 20:326. [PMID: 32615947 PMCID: PMC7331148 DOI: 10.1186/s12887-020-02209-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/16/2020] [Indexed: 11/26/2022] Open
Abstract
Background Dried blood spots (DBS) have been proposed as potentially tool for detecting invasive bacterial diseases. Methods We evaluated the use of DBS for S. pneumoniae and H. influenzae detection among children in Mozambique. Blood for DBS and nasopharyngeal (NP) swabs were collected from children with pneumonia and healthy aged < 5 years. Bacterial detection and serotyping were performed by quantitative PCR (qPCR) (NP and DBS; lytA gene for pneumococcus and hpd for H. influenzae) and culture (NP). Combined detection rates were compared between children with pneumonia and healthy. Results Of 325 children enrolled, 205 had pneumonia and 120 were healthy. Pneumococci were detected in DBS from 20.5 and 64.2% of children with pneumonia and healthy, respectively; NP specimens were positive for pneumococcus in 80.0 and 80.8%, respectively. H. influenzae was detected in DBS from 22.9% of children with pneumonia and 59.2% of healthy; 81.4 and 81.5% of NP specimens were positive for H. influenzae, respectively. Conclusion DBS detected pneumococcal and H. influenzae DNA in children with pneumonia and healthy. Healthy children were often DBS positive for both bacteria, suggesting that qPCR of DBS specimens does not differentiate disease from colonization and is therefore not a useful diagnostic tool for children.
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Affiliation(s)
- Fabiana C Pimenta
- Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, 30329, USA.
| | - Benild Moiane
- Centro de Investigação em Saúde de Manhiça, 1929, Maputo, Mozambique
| | - Fernanda C Lessa
- Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, 30329, USA
| | | | - Iaci Moura
- Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, 30329, USA
| | | | - Sergio Massora
- Centro de Investigação em Saúde de Manhiça, 1929, Maputo, Mozambique
| | - Alberto Chaúque
- Centro de Investigação em Saúde de Manhiça, 1929, Maputo, Mozambique
| | - Nelson Tembe
- Centro de Investigação em Saúde de Manhiça, 1929, Maputo, Mozambique
| | - Helio Mucavele
- Centro de Investigação em Saúde de Manhiça, 1929, Maputo, Mozambique
| | - Jennifer R Verani
- Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, 30329, USA
| | - Cynthia G Whitney
- Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, 30329, USA
| | - Betuel Sigaúque
- Centro de Investigação em Saúde de Manhiça, 1929, Maputo, Mozambique
| | - Maria G S Carvalho
- Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, 30329, USA
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Frey BS, Damon DE, Badu-Tawiah AK. Emerging trends in paper spray mass spectrometry: Microsampling, storage, direct analysis, and applications. MASS SPECTROMETRY REVIEWS 2020; 39:336-370. [PMID: 31491055 PMCID: PMC7875099 DOI: 10.1002/mas.21601] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 07/22/2019] [Indexed: 05/20/2023]
Abstract
Recent advancements in the sensitivity of chemical instrumentation have led to increased interest in the use of microsamples for translational and biomedical research. Paper substrates are by far the most widely used media for biofluid collection, and mass spectrometry is the preferred method of analysis of the resultant dried blood spot (DBS) samples. Although there have been a variety of review papers published on DBS, there has been no attempt to unify the century old DBS methodology with modern applications utilizing modified paper and paper-based microfluidics for sampling, storage, processing, and analysis. This critical review will discuss how mass spectrometry has expanded the utility of paper substrates from sample collection and storage, to direct complex mixture analysis to on-surface reaction monitoring.
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Affiliation(s)
| | | | - Abraham K. Badu-Tawiah
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210
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Jobst KJ, Arora A, Pollitt KG, Sled JG. Dried blood spots for the identification of bio-accumulating organic compounds: current challenges and future perspectives. CURRENT OPINION IN ENVIRONMENTAL SCIENCE & HEALTH 2020; 15:66-73. [PMID: 33073071 PMCID: PMC7560987 DOI: 10.1016/j.coesh.2020.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The exposome is a concept that underlines the critical relationship between health and environmental exposures, including environmental toxicants. Currently, most environmental exposures that contribute to the exposome have not been characterized. Dried-blood spots (DBS) offer a cost-effective, reliable approach to characterize the blood exposome, which consists of diverse endogenous and exogenous chemicals, including persistent and bioaccumulating organic compounds. Current challenges involve prioritizing the identification by state-of-the-art mass spectrometry of likely up to tens of thousands of compounds present in blood; characterizing substances that represent a mixture of myriad constituent compounds; and detecting trace level contaminants, especially in quantity-limited matrices like DBS. This contribution reviews recent trends in DBS analysis of chemical pollutants and highlights the need for continued research in analytical chemistry to advance the field of exposomics.
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Affiliation(s)
- Karl J. Jobst
- Department of Chemistry, Memorial University of Newfoundland, 283 Prince Phillip Drive, St. John's A1B 3X7 Canada
| | - Anmol Arora
- Department of Environmental Health Sciences, Yale School of Public Health, 60 College Street, New Haven, 06520 USA
- School of Clinical Medicine, University of Cambridge, Cambridge, CB2 0QQ, United Kingdom
| | - Krystal Godri Pollitt
- Department of Environmental Health Sciences, Yale School of Public Health, 60 College Street, New Haven, 06520 USA
| | - John G. Sled
- Mouse Imaging Centre, Hospital for Sick Children, 25 Orde Street, Toronto M5T 3H7, Canada
- Department of Medical Biophysics, University of Toronto, 101 College Street, Toronto M5G 1L7, Canada
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Dried Blood Spot in Laboratory: Directions and Prospects. Diagnostics (Basel) 2020; 10:diagnostics10040248. [PMID: 32340321 PMCID: PMC7235996 DOI: 10.3390/diagnostics10040248] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 04/16/2020] [Accepted: 04/21/2020] [Indexed: 12/14/2022] Open
Abstract
Over the past few years, dried blood spot (DBS) technology has become a convenient tool in both qualitative and quantitative biological analysis. DBS technology consists of a membrane carrier (MC) on the surface of which a biomaterial sample becomes absorbed. Modern analytical, immunological or genomic methods can be employed for analysis after drying the sample. DBS has been described as the most appropriate method for biomaterial sampling due to specific associated inherent advantages, including the small volumes of biomaterials required, the absence of a need for special conditions for samples’ storage and transportation, improved stability of analytes and reduced risk of infection resulting from contaminated samples. This review illustrates information on the current state of DBS technology, which can be useful and helpful for biomedical researchers. The prospects of using this technology to assess the metabolomic profile, assessment, diagnosis of communicable diseases are demonstrated.
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18
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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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Official International Association for Therapeutic Drug Monitoring and Clinical Toxicology Guideline: Development and Validation of Dried Blood Spot-Based Methods for Therapeutic Drug Monitoring. Ther Drug Monit 2020; 41:409-430. [PMID: 31268966 DOI: 10.1097/ftd.0000000000000643] [Citation(s) in RCA: 174] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Dried blood spot (DBS) analysis has been introduced more and more into clinical practice to facilitate Therapeutic Drug Monitoring (TDM). To assure the quality of bioanalytical methods, the design, development and validation needs to fit the intended use. Current validation requirements, described in guidelines for traditional matrices (blood, plasma, serum), do not cover all necessary aspects of method development, analytical- and clinical validation of DBS assays for TDM. Therefore, this guideline provides parameters required for the validation of quantitative determination of small molecule drugs in DBS using chromatographic methods, and to provide advice on how these can be assessed. In addition, guidance is given on the application of validated methods in a routine context. First, considerations for the method development stage are described covering sample collection procedure, type of filter paper and punch size, sample volume, drying and storage, internal standard incorporation, type of blood used, sample preparation and prevalidation. Second, common parameters regarding analytical validation are described in context of DBS analysis with the addition of DBS-specific parameters, such as volume-, volcano- and hematocrit effects. Third, clinical validation studies are described, including number of clinical samples and patients, comparison of DBS with venous blood, statistical methods and interpretation, spot quality, sampling procedure, duplicates, outliers, automated analysis methods and quality control programs. Lastly, cross-validation is discussed, covering changes made to existing sampling- and analysis methods. This guideline of the International Association of Therapeutic Drug Monitoring and Clinical Toxicology on the development, validation and evaluation of DBS-based methods for the purpose of TDM aims to contribute to high-quality micro sampling methods used in clinical practice.
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Screening for Human Immunodeficiency Virus Infection by Use of a Fourth-Generation Antigen/Antibody Assay and Dried Blood Spots: In-Depth Analysis of Sensitivity and Performance Assessment in a Cross-Sectional Study. J Clin Microbiol 2019; 58:JCM.01645-19. [PMID: 31666365 DOI: 10.1128/jcm.01645-19] [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] [Received: 10/01/2019] [Accepted: 10/24/2019] [Indexed: 12/29/2022] Open
Abstract
We evaluated the performance of a fourth-generation antigen/antibody (Ag/Ab) assay for detecting HIV-1 infection on dried blood spots (DBS) both in a conventional laboratory environment and in an epidemiological survey corresponding to a real-life situation. Although a 2-log loss of sensitivity compared to that with plasma was observed when using DBS in an analytical analysis, the median delay of positivity between DBS and crude serum during the early phase postacute infection was 7 days. The performance of the fourth-generation assay on DBS was approximately similar to that of a third-generation (antibody only) assay using crude serum samples. Among 2,646 participants of a cross-sectional study in a population of men having sex with men, 428 DBS were found reactive, but negative results were obtained from 5 DBS collected from individuals who self-reported a positive HIV status, confirmed by detection of antiretroviral (ARV) drugs in their DBS. The data generated allowed us to estimate a sensitivity of 98.8% of the fourth-generation assay/DBS strategy in a high-risk population, even including a broad majority of individuals on ARV treatment among those HIV positive. Our study brings additional proofs that DBS testing using a fourth-generation immunoassay is a reliable strategy able to provide alternative approaches for both individual HIV testing and surveillance of various populations.
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21
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Vvedenskaya O, Wang Y, Ackerman JM, Knittelfelder O, Shevchenko A. Analytical challenges in human plasma lipidomics: A winding path towards the truth. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.10.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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22
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Meesters R. Biofluid Collection in Metabolomics by the Application of the novel Volumetric Absorptive Microsampling Technology: a mini-Review. ACTA ACUST UNITED AC 2019. [DOI: 10.17145/rss.19.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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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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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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25
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de Lima Feltraco Lizot L, da Silva ACC, Bastiani MF, Hahn RZ, Bulcão R, Perassolo MS, Antunes MV, Linden R. Simultaneous determination of cocaine, ecgonine methyl ester, benzoylecgonine, cocaethylene and norcocaine in dried blood spots by ultra-performance liquid chromatography coupled to tandem mass spectrometry. Forensic Sci Int 2019; 298:408-416. [DOI: 10.1016/j.forsciint.2019.03.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/11/2019] [Accepted: 03/15/2019] [Indexed: 12/29/2022]
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26
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Instrumental and technical evolution over the past decade in bioanalysis. Bioanalysis 2019; 11:601-606. [DOI: 10.4155/bio-2018-0327] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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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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Avataneo V, D’Avolio A, Cusato J, Cantù M, De Nicolò A. LC-MS application for therapeutic drug monitoring in alternative matrices. J Pharm Biomed Anal 2019; 166:40-51. [DOI: 10.1016/j.jpba.2018.12.040] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 12/24/2018] [Accepted: 12/26/2018] [Indexed: 12/14/2022]
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29
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Galindo Bedor DC, Tavares Cavalcanti Bedor NC, Viturino da Silva JW, Damasceno Sousa G, Pereira de Santana D, Garcia-Bournissen F, Altcheh J, Blum B, Alves F, Ribeiro I. Dried Blood Spot Technique-Based Liquid Chromatography-Tandem Mass Spectrometry Method as a Simple Alternative for Benznidazole Pharmacokinetic Assessment. Antimicrob Agents Chemother 2018; 62:e00845-18. [PMID: 30275095 PMCID: PMC6256767 DOI: 10.1128/aac.00845-18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 09/14/2018] [Indexed: 11/20/2022] Open
Abstract
Chagas disease (CD) is recognized as one of the major neglected global tropical diseases. Benznidazole (BNZ) is the drug of choice for the treatment of adults, young infants, and newborns with CD. However, the pharmacokinetics (PK) of BNZ have been poorly evaluated in all age groups, with consequent gaps in knowledge about PK-pharmacodynamic relationships in CD. The purpose of this study was to develop and validate a bioanalytical method to quantify BNZ levels in small-volume whole-blood samples collected as dried blood spots (DBS). The analysis was performed using high-performance liquid chromatography-positive electrospray tandem mass spectrometry. PK evaluation in healthy male volunteers was conducted to verify the correlation between DBS and plasma BNZ concentrations. The calibration curve was linear from 50 to 20,000 ng · ml-1 Intra- and interday precision and bias values were less than 14.87% (n = 9) and 9.81% (n = 27), respectively. The recovery rates ranged from 94 to 100% with no matrix effect. There was no hematocrit level effect in a range of 20 to 70%. The PK results obtained from DBS and plasma were comparable (r2 = 0.8295) and equivalent to previously published information on BNZ. BNZ in DBS was stable at room temperature for more than one year. This article describes the first microsampling method for measuring BNZ levels in DBS that has the potential to facilitate broad implementation of PK in clinical trials involving adult and pediatric patients in remote areas and helps to address existing knowledge gaps in the treatment of CD.
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Affiliation(s)
- Danilo César Galindo Bedor
- Núcleo de Desenvolvimento Farmacêutico e Cosmético/Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | | | - José Wellithom Viturino da Silva
- Núcleo de Desenvolvimento Farmacêutico e Cosmético/Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Giovana Damasceno Sousa
- Núcleo de Desenvolvimento Farmacêutico e Cosmético/Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Davi Pereira de Santana
- Núcleo de Desenvolvimento Farmacêutico e Cosmético/Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Facundo Garcia-Bournissen
- Parasitology and Chagas Service, Buenos Aires Children's Hospital Ricardo Gutierrez, Buenos Aires, Argentina
| | - Jaime Altcheh
- Parasitology and Chagas Service, Buenos Aires Children's Hospital Ricardo Gutierrez, Buenos Aires, Argentina
| | - Bethania Blum
- Drugs for Neglected Diseases Initiative (DNDi), Geneva, Switzerland
| | - Fabiana Alves
- Drugs for Neglected Diseases Initiative (DNDi), Geneva, Switzerland
| | - Isabela Ribeiro
- Drugs for Neglected Diseases Initiative (DNDi), Geneva, Switzerland
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Gwyn S, Mkocha H, Randall JM, Kasubi M, Martin DL. Optimization of a rapid test for antibodies to the Chlamydia trachomatis antigen Pgp3. Diagn Microbiol Infect Dis 2018; 93:293-298. [PMID: 30709562 DOI: 10.1016/j.diagmicrobio.2018.11.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 11/02/2018] [Accepted: 11/03/2018] [Indexed: 01/15/2023]
Abstract
Serological surveillance for trachoma could allow monitoring of transmission levels in areas that have achieved elimination targets. Platforms that allow testing in basic laboratories or testing of easy-to-manage samples such as dried blood spots would contribute to the feasibility of serologic testing. Blood from 506 1-12-year-olds in 2 villages in Kongwa district, Tanzania, was tested for antibodies against the antigen Pgp3. Whole blood, plasma, and dried blood spots (DBS) were tested in lab and field settings using a cassette-enclosed Pgp3 lateral flow assay (LFA-cassette) and a pared-back "dipstick" assay (LFA-dipstick). DBS were also tested with a bead-based multiplex assay (MBA). There was no significant difference in antibody positivity between the MBA and either LFA format (ranging from 42.5% to 48.4%). Interrater agreement between an expert rater and 3 different raters in field and lab settings was uniformly good, with Cohen's kappa >0.81 in all cases.
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Affiliation(s)
- Sarah Gwyn
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Jessica Morgan Randall
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Diana L Martin
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA.
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Soares S, Castro T, Rosado T, Fernández N, Barroso M, Gallardo E. New analytical approach to determine organophosphorus insecticides in blood by dried matrix spots sampling and GC-MS/MS. Anal Bioanal Chem 2018; 410:7955-7964. [DOI: 10.1007/s00216-018-1417-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/17/2018] [Accepted: 10/04/2018] [Indexed: 12/21/2022]
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32
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Saushkin NY, Samsonova JV, Osipov AP, Kondakov SE. Strip-dried blood sampling: applicability for bovine leukemia virus detection with ELISA and real-time PCR. J Virol Methods 2018; 263:101-104. [PMID: 30412721 DOI: 10.1016/j.jviromet.2018.11.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 10/23/2018] [Accepted: 11/05/2018] [Indexed: 11/18/2022]
Abstract
We recently proposed a new so-called strip-dried format aimed for convenient use of dried biomaterial in diagnostic purposes. In this work, 334 blood samples obtained in strip-dried form were used for bovine leucosis analysis with ELISA and real-time PCR methods. High percentage of seropositive animals (18.3%) let us estimate both indirect (serological) and direct methods applicability for the analysis of strip-dried blood samples and also to compare them (PCR results concurred with ELISA in 93.4% cases). Parallel analysis of native and corresponding strip-dried samples approved the proposed format as a reliable analytical way of sampling being in 100% concordance with conventional serum/whole blood ELISA and PCR analysis. Even distribution of antibodies against bovine leukemia virus along the membrane carrier was demonstrated by square-to-square analyzing of the sample strip (CV not exceeded 7%). Also, strip-dried blood samples showed enhanced stability at elevated temperatures comparing to liquid serum. The proposed strip-blood format is a promising way of sampling, storage and transportation and can find application in veterinary practice for infectious disease monitoring.
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Affiliation(s)
- Nikolay Yu Saushkin
- Faculty of Chemistry, M.V. Lomonosov Moscow State University, 119991, Moscow, Russia.
| | - Jeanne V Samsonova
- Faculty of Chemistry, M.V. Lomonosov Moscow State University, 119991, Moscow, Russia; National University of Science and Technology "MISiS", 119049, Moscow, Russia
| | - Alexander P Osipov
- Faculty of Chemistry, M.V. Lomonosov Moscow State University, 119991, Moscow, Russia; National University of Science and Technology "MISiS", 119049, Moscow, Russia
| | - Sergey E Kondakov
- Faculty of Chemistry, M.V. Lomonosov Moscow State University, 119991, Moscow, Russia; National University of Science and Technology "MISiS", 119049, Moscow, Russia
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The Use of Dried Blood Spots for the Quantification of Antihypertensive Drugs. Int J Anal Chem 2018; 2018:3235072. [PMID: 30154849 PMCID: PMC6093062 DOI: 10.1155/2018/3235072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/09/2018] [Accepted: 07/02/2018] [Indexed: 12/16/2022] Open
Abstract
Hypertension or high blood pressure is a harbinger of cardiovascular diseases. There are several classes of drugs used to treat hypertension. This review discusses the use of dried blood spots (DBSs) for the quantification by mass spectrometry (MS), tandem mass spectrometry (MS/MS), or, in some cases, by fluorescence detection methods the following antihypertensive medications: angiotensin-converting enzyme inhibitors (ramipril, ramiprilat, captopril, and lisinopril); angiotensin II receptor antagonists (valsartan, irbesartan, losartan, and losartan carboxylic acid); calcium channel blockers (verapamil, amlodipine, nifedipine, pregabalin, and diltiazem); α blockers (guanfacine, doxazosin, and prazosin); β blockers (propranolol, bisoprolol, atenolol, and metoprolol); endothelin receptor antagonists (bosentan and ambrisentan); and statins (simvastatin, atorvastatin, and rosuvastatin).
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Kita K, Ishii T, Hotta K, Mano Y. A dried blood spot assay with UPLC–MS/MS for the simultaneous determination of E6005, a phosphodiesterase 4 inhibitor, and its metabolite in human blood. J Pharm Biomed Anal 2018; 157:208-216. [DOI: 10.1016/j.jpba.2018.05.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/15/2018] [Accepted: 05/20/2018] [Indexed: 12/16/2022]
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Andersen IKL, Rosting C, Gjelstad A, Halvorsen TG. Volumetric absorptive MicroSampling vs. other blood sampling materials in LC–MS-based protein analysis – preliminary investigations. J Pharm Biomed Anal 2018; 156:239-246. [DOI: 10.1016/j.jpba.2018.04.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 04/20/2018] [Accepted: 04/22/2018] [Indexed: 11/25/2022]
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Shaner RL, Coleman RM, Schulze N, Platanitis K, Brown AA, Seymour C, Kaplan P, Perez J, Hamelin EI, Johnson RC. Investigation of dried blood sampling with liquid chromatography tandem mass spectrometry to confirm human exposure to nerve agents. Anal Chim Acta 2018; 1033:100-107. [PMID: 30172315 DOI: 10.1016/j.aca.2018.06.049] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/11/2018] [Accepted: 06/15/2018] [Indexed: 11/28/2022]
Abstract
A method was developed to detect and quantify organophosphate nerve agent (OPNA) metabolites in dried blood samples. Dried blood spots (DBS) and microsampling devices are alternatives to traditional blood draws, allowing for safe handling, extended stability, reduced shipping costs, and potential self-sampling. DBS and microsamplers were evaluated for precision, accuracy, sensitivity, matrix effects, and extraction recovery following collection of whole blood containing five OPNA metabolites. The metabolites of VX, Sarin (GB), Soman (GD), Cyclosarin (GF), and Russian VX (VR) were quantitated from 5.0 to 500 ng mL-1 with precision of ≤16% and accuracy between 93 and 108% for QC samples with controlled volumes. For unknown spot volumes, OPNA metabolite concentrations were normalized to total blood protein to improve interpretation of nerve agent exposures. This study provides data to support the use of DBS and microsamplers to collect critical exposure samples quickly, safely, and efficiently following large-scale chemical exposure events.
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Affiliation(s)
- Rebecca L Shaner
- Emergency Response Branch, Centers for Disease Control and Prevention, 4770 Buford Highway, Atlanta, GA, 30341, USA
| | - Rebecca M Coleman
- Emergency Response Branch, Centers for Disease Control and Prevention, 4770 Buford Highway, Atlanta, GA, 30341, USA
| | - Nicholas Schulze
- ORISE Fellow, Centers for Disease Control and Prevention, 4770 Buford Highway, Atlanta, GA, 30341, USA
| | - Kelsey Platanitis
- ORISE Fellow, Centers for Disease Control and Prevention, 4770 Buford Highway, Atlanta, GA, 30341, USA
| | - Ashli A Brown
- ORISE Fellow, Centers for Disease Control and Prevention, 4770 Buford Highway, Atlanta, GA, 30341, USA
| | - Craig Seymour
- Battelle Memorial Institute at the Centers for Disease Control and Prevention, Atlanta, GA, 30341, USA
| | - Pearl Kaplan
- ORISE Fellow, Centers for Disease Control and Prevention, 4770 Buford Highway, Atlanta, GA, 30341, USA
| | - Jonas Perez
- Emergency Response Branch, Centers for Disease Control and Prevention, 4770 Buford Highway, Atlanta, GA, 30341, USA
| | - Elizabeth I Hamelin
- Emergency Response Branch, Centers for Disease Control and Prevention, 4770 Buford Highway, Atlanta, GA, 30341, USA.
| | - Rudolph C Johnson
- Emergency Response Branch, Centers for Disease Control and Prevention, 4770 Buford Highway, Atlanta, GA, 30341, USA
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Ask KS, Øiestad EL, Pedersen-Bjergaard S, Gjelstad A. Dried blood spots and parallel artificial liquid membrane extraction–A simple combination of microsampling and microextraction. Anal Chim Acta 2018; 1009:56-64. [DOI: 10.1016/j.aca.2018.01.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 01/11/2018] [Accepted: 01/12/2018] [Indexed: 01/12/2023]
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Dried Blood Spots Combined With Ultra-High-Performance Liquid Chromatography-Mass Spectrometry for the Quantification of the Antipsychotics Risperidone, Aripiprazole, Pipamperone, and Their Major Metabolites. Ther Drug Monit 2018; 39:429-440. [PMID: 28700523 DOI: 10.1097/ftd.0000000000000411] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Risperidone, aripiprazole, and pipamperone are antipsychotic drugs frequently prescribed for the treatment of comorbid behavioral problems in children with autism spectrum disorders. Therapeutic drug monitoring (TDM) could be useful to decrease side effects and to improve patient outcome. Dried blood spot (DBS) sample collection seems to be an attractive technique to develop TDM of these drugs in a pediatric population. The aim of this work was to develop and validate a DBS assay suitable for TDM and home sampling. METHODS Risperidone, 9-OH risperidone, aripiprazole, dehydroaripiprazole, and pipamperone were extracted from DBS and analyzed by ultra-high-performance liquid chromatography-tandem mass spectrometry using a C18 reversed-phase column with a mobile phase consisting of ammonium acetate/formic acid in water or methanol. The suitability of DBS for TDM was assessed by studying the influence of specific parameters: extraction solution, EDTA carryover, hematocrit, punching location, spot volume, and hemolysis. The assay was validated with respect to conventional guidelines for bioanalytical methods. RESULTS The method was linear, specific without any critical matrix effect, and with a mean recovery around 90%. Accuracy and imprecision were within the acceptance criteria in samples with hematocrit values from 30% to 45%. EDTA or hemolysis did not skew the results, and no punching carryover was observed. No significant influence of the spot volume or the punch location was observed. The antipsychotics were all stable in DBS stored 10 days at room temperature and 1 month at 4 or -80°C. The method was successfully applied to quantify the 3 antipsychotics and their metabolites in patient samples. CONCLUSIONS A UHPLC-MS/MS method has been successfully validated for the simultaneous quantification of risperidone, 9-OH risperidone, aripiprazole, dehydroaripiprazole, and pipamperone in DBS. The assay provided good analytical performances for TDM and clinical research applications.
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Clinical application of microsampling versus conventional sampling techniques in the quantitative bioanalysis of antibiotics: a systematic review. Bioanalysis 2018; 10:407-423. [DOI: 10.4155/bio-2017-0269] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Conventional sampling techniques for clinical pharmacokinetic studies often require the removal of large blood volumes from patients. This can result in a physiological or emotional burden, particularly for neonates or pediatric patients. Antibiotic pharmacokinetic studies are typically performed on healthy adults or general ward patients. These may not account for alterations to a patient’s pathophysiology and can lead to suboptimal treatment. Microsampling offers an important opportunity for clinical pharmacokinetic studies in vulnerable patient populations, where smaller sample volumes can be collected. This systematic review provides a description of currently available microsampling techniques and an overview of studies reporting the quantitation and validation of antibiotics using microsampling. A comparison of microsampling to conventional sampling in clinical studies is included.
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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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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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Sadler Simões S, Castañera Ajenjo A, Dias MJ. Dried blood spots combined to an UPLC–MS/MS method for the simultaneous determination of drugs of abuse in forensic toxicology. J Pharm Biomed Anal 2018; 147:634-644. [DOI: 10.1016/j.jpba.2017.02.046] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 02/21/2017] [Accepted: 02/26/2017] [Indexed: 12/15/2022]
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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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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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Samsonova JV, Osipov AP, Kondakov SE. Strip-dried whole milk sampling technique for progesterone detection in cows by ELISA. Talanta 2017; 175:143-149. [PMID: 28841971 DOI: 10.1016/j.talanta.2017.07.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 07/11/2017] [Accepted: 07/12/2017] [Indexed: 01/29/2023]
Abstract
New sampling format of whole cows' milk in strip-dried form was proposed. Few methodological issues of whole milk progesterone ELISA using samples dried on a membrane carrier in a form of strip were investigated and optimized: width of a strip, shape of punched/cut-off part of membrane, sample application method. It was shown that distribution of the hormone along narrow strip was even except the initial part of a strip (the first 0.5 × 0.5cm piece) where recovered concentration of progesterone was higher. Storage stability of progesterone in strip-dried whole cows' milk samples at 4°C, ambient temperature, 37°C and 60°C was investigated. Rising of the detected progesterone concentration over storage period at elevated temperatures was observed predominantly in milk samples with low hormone concentration (from non-pregnant cows). Strip-dried whole milk samples can be used for collection, transportation, storage and ELISA analysis of progesterone level which is correlated with reproductive status of cows.
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Affiliation(s)
- J V Samsonova
- Department of Chemical Enzymology, Chemistry Faculty, M.V.Lomonosov Moscow State University, Moscow, Russia; National University of Science and Technology "MISiS", Moscow, Russia.
| | - A P Osipov
- Department of Chemical Enzymology, Chemistry Faculty, M.V.Lomonosov Moscow State University, Moscow, Russia; National University of Science and Technology "MISiS", Moscow, Russia
| | - S E Kondakov
- Department of Chemical Enzymology, Chemistry Faculty, M.V.Lomonosov Moscow State University, Moscow, Russia; National University of Science and Technology "MISiS", Moscow, Russia
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Arjmandi-Tash O, Kovalchuk NM, Trybala A, Kuchin IV, Starov V. Kinetics of Wetting and Spreading of Droplets over Various Substrates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:4367-4385. [PMID: 28190350 DOI: 10.1021/acs.langmuir.6b04094] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
There has been a substantial increase in the number of publications in the field of wetting and spreading since 2010. This increase in the rate of publications can be attributed to the broader application of wetting phenomena in new areas. It is impossible to review such a huge number of publications; that is, some topics in the field of wetting and spreading are selected to be discussed below. These topics are as follows: (i) Contact angle hysteresis on smooth homogeneous solid surfaces via disjoining/conjoining pressure. It is shown that the hysteresis contact angles can be calculated via disjoining/conjoining pressure. The theory indicates that the equilibrium contact angle is closer to a static receding contact angle than to a static advancing contact angle. (ii) The wetting of deformable substrates, which is caused by surface forces action in the vicinity of the apparent three-phase contact line, leading to a deformation on the substrate. (iii) The kinetics of wetting and spreading of non-Newtonian liquid (blood) over porous substrates. We showed that in spite of the enormous complexity of blood, the spreading over porous substrate can be described using a relatively simple model: a power low-shear-thinning non-Newtonian liquid. (iv) The kinetics of spreading of surfactant solutions. In this part, new results related to various surfactant solution mixtures (synergy and crystallization) are discussed, which shows some possible direction for the future revealing of superspreading phenomena. (v) The kinetics of spreading of surfactant solutions over hair. Fundamental problems to be solved are identified.
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Affiliation(s)
- Omid Arjmandi-Tash
- Deparment of Chemical Engineering, Loughborough University , Loughborough LE11 3TU, U.K
| | - Nina M Kovalchuk
- Deparment of Chemical Engineering, Loughborough University , Loughborough LE11 3TU, U.K
- Institute of Biocolloid Chemistry , Kiev 03142, Ukraine
| | - Anna Trybala
- Deparment of Chemical Engineering, Loughborough University , Loughborough LE11 3TU, U.K
| | - Igor V Kuchin
- Deparment of Chemical Engineering, Loughborough University , Loughborough LE11 3TU, U.K
- Institute of Physical Chemistry and Electrochemistry RAS , Moscow 119071, Russia
| | - Victor Starov
- Deparment of Chemical Engineering, Loughborough University , Loughborough LE11 3TU, U.K
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Dried blood spot validation of five immunosuppressants, without hematocrit correction, on two LC–MS/MS systems. Bioanalysis 2017; 9:553-563. [DOI: 10.4155/bio-2016-0296] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Aim: Hematocrit (Ht) effects remain a challenge in dried blood spot (DBS) sampling. The aim was to develop an immunosuppressant DBS assay on two LC–MS/MS systems covering a clinically relevant Ht range without Ht correction. Results: The method was partially validated for tacrolimus, sirolimus, everolimus, cyclosporin A and fully validated for mycophenolic acid on an Agilent and Thermo LC–MS/MS system. Bias caused by Ht effects were within 15% for all immunosuppressants between Ht levels of 0.23 and 0.48 l/l. Clinical validation of DBS versus whole blood samples for tacrolimus and cyclosporin A showed no differences between the two matrices. Conclusion: A multiple immunosuppressant DBS method without Ht correction, has been validated, including a clinical validation for tacrolimus and cyclosporin A, making this procedure suitable for home sampling.
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Shaner RL, Schulze ND, Seymour C, Hamelin EI, Thomas JD, Johnson RC. Quantitation of Fentanyl Analogs in Dried Blood Spots by Flow-Through Desorption Coupled to Online Solid Phase Extraction Tandem Mass Spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2017; 9:3876-3883. [PMID: 29181095 PMCID: PMC5701286 DOI: 10.1039/c7ay00532f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
An automated dried blood spot (DBS) elution coupled with solid phase extraction and tandem mass spectrometric analysis for multiple fentanyl analogs was developed and assessed. This method confirms human exposures to fentanyl, sufentanil, carfentanil, alfentanil, lofentanil, α-methyl fentanyl, and 3-methyl fentanyl in blood with minimal sample volume and reduced shipping and storage costs. Seven fentanyl analogs were detected and quantitated from DBS made from venous blood. The calibration curve in matrix was linear in the concentration range of 1.0 ng/mL to 100 ng/mL with a correlation coefficient greater than 0.98 for all compounds. The limit of detection varied from 0.15 ng/mL to 0.66 ng/mL depending on target analyte. Analysis of the entire DBS minimized the effects of hematocrit on quantitation. All quality control materials evaluated resulted in <15% error; analytes with isotopically labeled internal standards had <15% RSD, while analytes without matching standards had 15-24% RSD. This method provides an automated means to detect seven fentanyl analogs, and quantitate four fentanyl analogs with the benefits of DBS at levels anticipated from an overdose of these potent opioids.
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Affiliation(s)
- Rebecca L Shaner
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS F44, Atlanta, GA 30341
| | - Nicholas D Schulze
- ORISE Fellow, Centers for Disease Control and Prevention, National Center for Environmental Health, Division of Laboratory Sciences, Atlanta, GA 30341
| | - Craig Seymour
- ORISE Fellow, Centers for Disease Control and Prevention, National Center for Environmental Health, Division of Laboratory Sciences, Atlanta, GA 30341
| | - Elizabeth I Hamelin
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS F44, Atlanta, GA 30341
| | - Jerry D Thomas
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS F44, Atlanta, GA 30341
| | - Rudolph C Johnson
- Centers for Disease Control and Prevention, 4770 Buford Hwy, MS F44, Atlanta, GA 30341
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Duthaler U, Sayasone S, Vanobbergen F, Penny MA, Odermatt P, Huwyler J, Keiser J. Single-Ascending-Dose Pharmacokinetic Study of Tribendimidine in Opisthorchis viverrini-Infected Patients. Antimicrob Agents Chemother 2016; 60:5705-15. [PMID: 27431234 PMCID: PMC5038241 DOI: 10.1128/aac.00992-16] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 07/12/2016] [Indexed: 01/27/2023] Open
Abstract
Praziquantel is the only drug available for the treatment of Opisthorchis viverrini infections. Tribendimidine has emerged as a potential treatment alternative; however, its pharmacokinetic (PK) properties have not been sufficiently studied to date. Via two phase IIa dose-finding studies, 68 O. viverrini patients were treated with 25- to 600-mg doses of tribendimidine using 50- and 200-mg tablet formulations. Plasma, blood, and dried blood spots (DBS) were sampled at selected time points. The two main metabolites of tribendimidine, active deacetylated amidantel (dADT) and acetylated dADT (adADT), were analyzed in plasma, blood, and DBS. PK parameters were estimated by noncompartmental analysis. An acceptable agreement among plasma and DBS concentrations was observed, with a mean bias of ≤10%, and 60% dADT and 74% adADT concentrations being within ±20% margins. We found that 200-mg tribendimidine tablets possess immediate floating characteristics, which led to variable time to maximal concentration of drug (Tmax) values (2 to 24 h) between individuals. Dose proportionality was observed for dADT from 25 to 200 mg using 50-mg tablets, but at higher dosages (200 to 600 mg), saturation occurred. The median ratio of the area under the plasma concentration-time curve from 0 to 24 h (AUC0-24) of dADT to the AUC0- 24 of adADT ranged from 0.8 to 26.4, suggesting substantial differences in acetylation rates. Cure rates ranged from 11% (25-mg dose) to 100% (400-mg dose). Cured patients showed significantly higher dADT maximal serum concentrations (Cmax) and AUC0-24 values than uncured patients. Tribendimidine is a promising drug for the treatment of opisthorchiasis. However, the tablet formulation should be optimized to achieve consistent absorption among patients. Further studies are warranted to assess the large differences between individuals in the rate of metabolic turnover of dADT to adADT. (This study has been registered with the ISRCTN Registry under no. ISRCTN96948551.).
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Affiliation(s)
- Urs Duthaler
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Somphou Sayasone
- National Institute of Public Health, Ministry of Health, Vientiane, Lao People's Democratic Republic
| | - Fiona Vanobbergen
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Melissa A Penny
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Peter Odermatt
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Jörg Huwyler
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, Basel, Switzerland
| | - Jennifer Keiser
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
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