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Aidoo NE, Ofori EK, Boima V, Nyarko ENY, Osei JC, Darkwah CG, Gayflor MO, Amponsah SK, Asare-Anane H. Biochemical indices of patients with enteric fever and pancreatitis: A comparative cross-sectional study. Pract Lab Med 2024; 42:e00429. [PMID: 39386263 PMCID: PMC11460469 DOI: 10.1016/j.plabm.2024.e00429] [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: 07/11/2024] [Revised: 08/30/2024] [Accepted: 09/15/2024] [Indexed: 10/12/2024] Open
Abstract
Objective Enteric fever (EF), a potentially fatal febrile illness, is prevalent in developing countries. Elevated levels of lipase and amylase in serum, typically associated with acute pancreatitis (AP), have been observed in patients with EF. The elevated enzymes in both conditions may lead to diagnostic confusion and care delays. This study aimed to determine biochemical indices that are peculiar to EF and AP. Methods A cross-sectional comparative study was conducted at the Korle-Bu Teaching Hospital, Ghana. Volunteers were categorized into three groups: EF (n = 32), AP (n = 30) and healthy controls (n = 31). A standard questionnaire was used to collect socio-demographic and clinical information from the participants. Blood and stool samples were obtained, followed by biochemical analysis: total amylase, lipase, pancreatic amylase, serum elastase 1, hepatic enzymes, calcium, magnesium, phosphate, stool colour, stool pH, and stool fat presence. Results The AP group displayed higher total amylase, lipase, elastase-1, alkaline phosphatase, aspartate aminotransferase, and gamma-glutamyl transferase levels compared to the EF and control groups (p < 0.05 respectively). Elastase 1 levels were found to be high in all AP participants, whereas no elevations were observed in the EF group. Positive associations were observed in the AP and EF groups for lipase vs total amylase (ρ = .543, p = 0.001; ρ = .543, p = 0.001 for both). Conclusions Elevated levels of total/pancreatic amylase and lipase were found to be indicative of a patient with AP and EF. Further, elastase-1 was found to be a good biomarker to distinguish between AP and EF.
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Affiliation(s)
- Nathaniel Ebo Aidoo
- Department of Chemical Pathology, University of Ghana Medical School, Accra, Ghana
- MDS-Lancet Laboratories Ghana Ltd, East Legon, Accra, Ghana
| | - Emmanuel Kwaku Ofori
- Department of Chemical Pathology, University of Ghana Medical School, Accra, Ghana
| | - Vincent Boima
- Department of Medicine and Therapeutics, University of Ghana Medical School, Ghana
| | - Eric Nana Yaw Nyarko
- Department of Chemical Pathology, University of Ghana Medical School, Accra, Ghana
| | - John Cletus Osei
- Department of Chemical Pathology, University of Ghana Medical School, Accra, Ghana
| | - Clement G. Darkwah
- Department of Chemical Pathology, University of Ghana Medical School, Accra, Ghana
- University of Ghana Legon Hospital, Accra, Ghana
| | - Morris O. Gayflor
- Department of Chemical Pathology, University of Ghana Medical School, Accra, Ghana
| | - Seth K. Amponsah
- Department of Medical Pharmacology, University of Ghana Medical School, Accra, Ghana
| | - Henry Asare-Anane
- Department of Chemical Pathology, University of Ghana Medical School, Accra, Ghana
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Wang Y, Chen J, Yang Z, Wang X, Zhang Y, Chen M, Ming Z, Zhang K, Zhang D, Zheng L. Advances in Nucleic Acid Assays for Infectious Disease: The Role of Microfluidic Technology. Molecules 2024; 29:2417. [PMID: 38893293 PMCID: PMC11173870 DOI: 10.3390/molecules29112417] [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] [Received: 04/19/2024] [Revised: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
Within the fields of infectious disease diagnostics, microfluidic-based integrated technology systems have become a vital technology in enhancing the rapidity, accuracy, and portability of pathogen detection. These systems synergize microfluidic techniques with advanced molecular biology methods, including reverse transcription polymerase chain reaction (RT-PCR), loop-mediated isothermal amplification (LAMP), and clustered regularly interspaced short palindromic repeats (CRISPR), have been successfully used to identify a diverse array of pathogens, including COVID-19, Ebola, Zika, and dengue fever. This review outlines the advances in pathogen detection, attributing them to the integration of microfluidic technology with traditional molecular biology methods and smartphone- and paper-based diagnostic assays. The cutting-edge diagnostic technologies are of critical importance for disease prevention and epidemic surveillance. Looking ahead, research is expected to focus on increasing detection sensitivity, streamlining testing processes, reducing costs, and enhancing the capability for remote data sharing. These improvements aim to achieve broader coverage and quicker response mechanisms, thereby constructing a more robust defense for global public health security.
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Affiliation(s)
- Yiran Wang
- Engineering Research Center of Optical Instrument and System, The Ministry of Education, Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Jingwei Chen
- Engineering Research Center of Optical Instrument and System, The Ministry of Education, Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zhijin Yang
- Engineering Research Center of Optical Instrument and System, The Ministry of Education, Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Xuanyu Wang
- Engineering Research Center of Optical Instrument and System, The Ministry of Education, Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yule Zhang
- Engineering Research Center of Optical Instrument and System, The Ministry of Education, Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Mengya Chen
- Engineering Research Center of Optical Instrument and System, The Ministry of Education, Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zizhen Ming
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Kaihuan Zhang
- 2020 X-Lab, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Dawei Zhang
- Engineering Research Center of Optical Instrument and System, The Ministry of Education, Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
- Shanghai Engineering Research Center of Environmental Biosafety Instruments and Equipment, University of Shanghai for Science and Technology, Shanghai 200093, China
- Shanghai Institute of Intelligent Science and Technology, Tongji University, Shanghai 200092, China
| | - Lulu Zheng
- Engineering Research Center of Optical Instrument and System, The Ministry of Education, Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
- Shanghai Engineering Research Center of Environmental Biosafety Instruments and Equipment, University of Shanghai for Science and Technology, Shanghai 200093, China
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Lehnert T, Gijs MAM. Microfluidic systems for infectious disease diagnostics. LAB ON A CHIP 2024; 24:1441-1493. [PMID: 38372324 DOI: 10.1039/d4lc00117f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Microorganisms, encompassing both uni- and multicellular entities, exhibit remarkable diversity as omnipresent life forms in nature. They play a pivotal role by supplying essential components for sustaining biological processes across diverse ecosystems, including higher host organisms. The complex interactions within the human gut microbiota are crucial for metabolic functions, immune responses, and biochemical signalling, particularly through the gut-brain axis. Viruses also play important roles in biological processes, for example by increasing genetic diversity through horizontal gene transfer when replicating inside living cells. On the other hand, infection of the human body by microbiological agents may lead to severe physiological disorders and diseases. Infectious diseases pose a significant burden on global healthcare systems, characterized by substantial variations in the epidemiological landscape. Fast spreading antibiotic resistance or uncontrolled outbreaks of communicable diseases are major challenges at present. Furthermore, delivering field-proven point-of-care diagnostic tools to the most severely affected populations in low-resource settings is particularly important and challenging. New paradigms and technological approaches enabling rapid and informed disease management need to be implemented. In this respect, infectious disease diagnostics taking advantage of microfluidic systems combined with integrated biosensor-based pathogen detection offers a host of innovative and promising solutions. In this review, we aim to outline recent activities and progress in the development of microfluidic diagnostic tools. Our literature research mainly covers the last 5 years. We will follow a classification scheme based on the human body systems primarily involved at the clinical level or on specific pathogen transmission modes. Important diseases, such as tuberculosis and malaria, will be addressed more extensively.
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Affiliation(s)
- Thomas Lehnert
- Laboratory of Microsystems, École Polytechnique Fédérale de Lausanne, Lausanne, CH-1015, Switzerland.
| | - Martin A M Gijs
- Laboratory of Microsystems, École Polytechnique Fédérale de Lausanne, Lausanne, CH-1015, Switzerland.
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Lin Z, Zou Z, Pu Z, Wu M, Zhang Y. Application of microfluidic technologies on COVID-19 diagnosis and drug discovery. Acta Pharm Sin B 2023; 13:S2211-3835(23)00061-8. [PMID: 36855672 PMCID: PMC9951611 DOI: 10.1016/j.apsb.2023.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/02/2023] [Accepted: 02/15/2023] [Indexed: 02/26/2023] Open
Abstract
The ongoing coronavirus disease 2019 (COVID-19) pandemic has boosted the development of antiviral research. Microfluidic technologies offer powerful platforms for diagnosis and drug discovery for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) diagnosis and drug discovery. In this review, we introduce the structure of SARS-CoV-2 and the basic knowledge of microfluidic design. We discuss the application of microfluidic devices in SARS-CoV-2 diagnosis based on detecting viral nucleic acid, antibodies, and antigens. We highlight the contribution of lab-on-a-chip to manufacturing point-of-care equipment of accurate, sensitive, low-cost, and user-friendly virus-detection devices. We then investigate the efforts in organ-on-a-chip and lipid nanoparticles (LNPs) synthesizing chips in antiviral drug screening and mRNA vaccine preparation. Microfluidic technologies contribute to the ongoing SARS-CoV-2 research efforts and provide tools for future viral outbreaks.
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Affiliation(s)
- Zhun Lin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhengyu Zou
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Zhe Pu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Minhao Wu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Yuanqing Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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Hin S, Paust N, Rombach M, Lüddecke J, Specht M, Zengerle R, Mitsakakis K. Magnetophoresis in Centrifugal Microfluidics at Continuous Rotation for Nucleic Acid Extraction. MICROMACHINES 2022; 13:2112. [PMID: 36557411 PMCID: PMC9787563 DOI: 10.3390/mi13122112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/21/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Centrifugal microfluidics enables fully automated molecular diagnostics at the point-of-need. However, the integration of solid-phase nucleic acid extraction remains a challenge. Under this scope, we developed the magnetophoresis under continuous rotation for magnetic bead-based nucleic acid extraction. Four stationary permanent magnets are arranged above a cartridge, creating a magnetic field that enables the beads to be transported between the chambers of the extraction module under continuous rotation. The centrifugal force is maintained to avoid uncontrolled spreading of liquids. We concluded that below a frequency of 5 Hz, magnetic beads move radially inwards. In support of magnetophoresis, bead inertia and passive geometrical design features allow to control the azimuthal bead movement between chambers. We then demonstrated ferrimagnetic bead transfer in liquids with broad range of surface tension and density values. Furthermore, we extracted nucleic acids from lysed Anopheles gambiae mosquitoes reaching comparable results of eluate purity (LabDisk: A260/A280 = 1.6 ± 0.04; Reference: 1.8 ± 0.17), and RT-PCR of extracted RNA (LabDisk: Ct = 17.9 ± 1.6; Reference: Ct = 19.3 ± 1.7). Conclusively, magnetophoresis at continuous rotation enables easy cartridge integration and nucleic acid extraction at the point-of-need with high yield and purity.
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Affiliation(s)
- Sebastian Hin
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Nils Paust
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
- IMTEK—Laboratory for MEMS Applications, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Markus Rombach
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Jan Lüddecke
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Mara Specht
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Roland Zengerle
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
- IMTEK—Laboratory for MEMS Applications, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Konstantinos Mitsakakis
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
- IMTEK—Laboratory for MEMS Applications, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
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Research on point-of-care tests in outpatient care in Germany: A scoping review and definition of relevant endpoints in evaluation studies. ZEITSCHRIFT FUR EVIDENZ, FORTBILDUNG UND QUALITAT IM GESUNDHEITSWESEN 2022; 174:1-10. [PMID: 36055890 DOI: 10.1016/j.zefq.2022.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/14/2022] [Accepted: 06/13/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND The fast turnaround time and user-friendliness of point-of-care tests (POCTs) offer a great potential to improve outpatient health care where clinical decisions have to be made during the physician-patient encounter and time resources are limited. The aim of this scoping review is to describe the extent and nature as well as gaps in German research activities on POCT in outpatient care. In addition, we define research endpoints that should be addressed in the comprehensive evaluation of POCTs targeted for outpatient care. METHODS We performed a scoping review with a systematic literature search in Medline (via PubMed), Scopus, Web of Science, Cochrane library and Google Scholar for German publications on POCT with relevance to German outpatient care published from January 2005 to November 2020. RESULTS Our literature search identified 2,200 unique records. After literature selection 117 articles were included in this scoping review. Just over half of the articles (67/117, 57.3%) were primary research studies with original data, while one third of all the studies (33.3%) were secondary research articles (e.g., review articles). The remaining articles were clinical recommendations / position papers (7/117, 6.0%) and other types of articles (3.4%). The majority of articles focused on POCT use in infectious diseases (44/117, 37.6%), diabetic syndromes (15.4%), cardiac disease (12.0%) or coagulopathies and thrombosis (10.3%), while the remaining articles did not specify the disease (13.7%) or investigated other diseases (11.1%). Similar to international studies, most primary research studies investigated the diagnostic performance of POCT (e.g., sensitivity, specificity). Evidence beyond diagnostic accuracy remains scarce, such as the impact on therapeutic decisions and practice routines, clinical effectiveness, and user perspectives. In line with this, interventional studies (such as RCTs) on the effectiveness of POCT use in German outpatient care are limited. We define six endpoint domains that should be addressed in the evaluation of POCTs targeted for outpatient care: (i) diagnostic performance, (ii) clinical performance, (iii) time and costs, (iv) impact on clinical routines / processes, (v) perspectives of medical professionals and patients, and (vi) broader aspects. CONCLUSION There is considerable research activity on POCTs targeted for use in outpatient care in Germany. Data on their potential benefits beyond diagnostic accuracy is often lacking and should be addressed in future POCT research studies.
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Ahorlu CS, Ndong IC, Okyere D, Mensah BA, Chu CE, Enos JY, Abuaku B. The Effect of Mass Testing, Treatment and Tracking on the Prevalence of Febrile Illness in Children under 15 in Ghana. Pathogens 2022; 11:pathogens11101118. [PMID: 36297175 PMCID: PMC9609179 DOI: 10.3390/pathogens11101118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/16/2022] [Accepted: 09/24/2022] [Indexed: 11/18/2022] Open
Abstract
Background: Malaria remains a serious threat to children under 15 years of age in sub-Sahara Africa. Mass testing, treatment and tracking (MTTT) of malaria has been reported to reduce parasite load significantly. However, the impact of MTTT on the prevalence of febrile illnesses in children under 15 is not yet clear. This study explores the impact of MTTT complemented by prompt home-based management of malaria on febrile illnesses and their treatment in children under 15 years old. Methods: A cohort of 460 children under 15 years were recruited from the Pakro subdistrict in Ghana during a community-wide implementation of a quarterly MTTT intervention. The MTTT implementation involved testing all household members for malaria using RDTs, and positive cases were treated with Artemisinin-based combination therapy (ACT). Febrile illnesses among this cohort in the two weeks prior to the prevalence survey at baseline and endline were recorded to constitute date for analysis. Results: The prevalence of febrile illnesses, such chills, convulsion, fever, diarrhoea, headache, vomit, cough/rashes or stomachache, etc., were recorded). Asymptomatic parasitaemia prevalence at baseline was 53.3%, which dropped to 44.1% at evaluation. An overall decrease in the parasitaemia prevalence of 33.0% (OR = 0.67, CI = 0.50, 0.89) was observed at evaluation compared to baseline after adjusting for age, ITN use and temperature. A 67% decrease in severe anaemia cases (Hb < 7) was observed at evaluation. Conclusion: Our findings suggest that implementing MTTT complemented by home-based timely management of malaria does not only reduce febrile illnesses and for that matter malaria prevalence, but could also reduce severe anaemia in children under 15 years old.
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Affiliation(s)
- Collins Stephen Ahorlu
- Department of Epidemiology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Accra P.O. Box LG 581, Ghana
- Correspondence:
| | - Ignatius Cheng Ndong
- Department of Epidemiology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Accra P.O. Box LG 581, Ghana
- Department of Biochemistry, Faculty of Science, Catholic University of Cameroon, Bamenda P.O. Box 572, Cameroon
| | - Daniel Okyere
- Department of Epidemiology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Accra P.O. Box LG 581, Ghana
| | - Benedicta A. Mensah
- Department of Epidemiology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Accra P.O. Box LG 581, Ghana
| | - Chuo Ennestine Chu
- Department of Epidemiology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Accra P.O. Box LG 581, Ghana
- Department of Biochemistry, Faculty of Science, Catholic University of Cameroon, Bamenda P.O. Box 572, Cameroon
| | - Juliana Y. Enos
- Department of Epidemiology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Accra P.O. Box LG 581, Ghana
| | - Benjamin Abuaku
- Department of Epidemiology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Accra P.O. Box LG 581, Ghana
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Borrás C. The health technology task group: a visionary’s program. HEALTH AND TECHNOLOGY 2022. [DOI: 10.1007/s12553-022-00678-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Song W, Zhang T, Lin H, Yang Y, Zhao G, Huang X. Conventional and Microfluidic Methods for the Detection of Nucleic Acid of SARS-CoV-2. MICROMACHINES 2022; 13:636. [PMID: 35457940 PMCID: PMC9031662 DOI: 10.3390/mi13040636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/09/2022] [Accepted: 04/12/2022] [Indexed: 12/23/2022]
Abstract
Nucleic acid testing (NAT) played a crucial role in containing the spread of SARS-CoV-2 during the epidemic. The gold standard technique, the quantitative real-time polymerase chain reaction (qRT-PCR) technique, is currently used by the government and medical boards to detect SARS-CoV-2. Due to the limitations of this technology, it is not capable of meeting the needs of large-scale rapid detection. To solve this problem, many new techniques for detecting nucleic acids of SARS-CoV-2 have been reported. Therefore, a review that systematically and comprehensively introduces and compares various detection technologies is needed. In this paper, we not only review the traditional NAT but also provide an overview of microfluidic-based NAT technologies and summarize and discuss the characteristics and development prospects of these techniques.
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Affiliation(s)
| | | | | | | | | | - Xiaowen Huang
- State Key Laboratory of Biobased Material and Green Papermaking, Department of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250300, China; (W.S.); (T.Z.); (H.L.); (Y.Y.); (G.Z.)
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Luka G, Samiei E, Tasnim N, Dalili A, Najjaran H, Hoorfar M. Comprehensive review of conventional and state-of-the-art detection methods of Cryptosporidium. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126714. [PMID: 34325293 DOI: 10.1016/j.jhazmat.2021.126714] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 07/06/2021] [Accepted: 07/19/2021] [Indexed: 06/13/2023]
Abstract
Cryptosporidium is a critical waterborne protozoan pathogen found in water resources that have been a major cause of death and serious illnesses worldwide, costing millions of dollars annually for its detection and treatment. Over the past several decades, substantial efforts have been made towards developing techniques for the detection of Cryptosporidium. Early diagnostic techniques were established based on the existing tools in laboratories, such as microscopes. Advancements in fluorescence microscopy, immunological, and molecular techniques have led to the development of several kits for the detection of Cryptosporidium spp. However, these methods have several limitations, such as long processing times, large sample volumes, the requirement for bulky and expensive laboratory tools, and the high cost of reagents. There is an urgent need to improve these existing techniques and develop low-cost, portable and rapid detection tools for applications in the water quality industry. In this review, we compare recent advances in nanotechnology, biosensing and microfluidics that have facilitated the development of sophisticated tools for the detection of Cryptosporidium spp.Finally, we highlight the advantages and disadvantages, of these state-of-the-art detection methods compared to current analytical methodologies and discuss the need for future developments to improve such methods for detecting Cryptosporidium in the water supply chain to enable real-time and on-site monitoring in water resources and remote areas.
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Affiliation(s)
- George Luka
- School of Engineering, University of British Columbia, 3333 University Way, Kelowna, BC V1V1V7, Canada.
| | - Ehsan Samiei
- Department of Mechanical & Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada.
| | - Nishat Tasnim
- School of Engineering, University of British Columbia, 3333 University Way, Kelowna, BC V1V1V7, Canada.
| | - Arash Dalili
- School of Engineering, University of British Columbia, 3333 University Way, Kelowna, BC V1V1V7, Canada.
| | - Homayoun Najjaran
- School of Engineering, University of British Columbia, 3333 University Way, Kelowna, BC V1V1V7, Canada.
| | - Mina Hoorfar
- School of Engineering, University of British Columbia, 3333 University Way, Kelowna, BC V1V1V7, Canada.
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Chen CH, Tsao YT, Yeh PT, Liao YH, Lee YT, Liao WT, Wang YC, Shen CF, Cheng CM. Detection of Microorganisms in Body Fluids via MTT-PMS Assay. Diagnostics (Basel) 2021; 12:46. [PMID: 35054213 PMCID: PMC8774610 DOI: 10.3390/diagnostics12010046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 12/17/2021] [Accepted: 12/23/2021] [Indexed: 12/29/2022] Open
Abstract
Early detection of microorganisms is essential for the management of infectious diseases. However, this is challenging, as traditional culture methods are labor-intensive and time-consuming. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide-phenazine methosulfate (MTT-PMS) assay has been used to evaluate the metabolic activity in live cells and can thus be used for detecting living microorganisms. With the addition of NaOH and Tris-EDTA, the same approach can be accelerated (within 15 min) and used for the quick detection of common bacterial pathogens. The assay results can be evaluated colorimetrically or semi-quantitatively. Here, the quick detection by MTT-PMS assay was further investigated. The assay had a detection limit of approximately 104 CFU/mL. In clinical evaluations, we used the MTT-PMS assay to detect clinical samples and bacteriuria (>105 CFU/mL). The negative predictive value of the MTT-PMS assay for determining bacteriuria was 79.59% but was 100% when the interference of abnormal blood was excluded. Thus, the MTT-PMS assay might be a potential "rule-out" tool for bacterial detection in clinical samples, at a cost of approximately USD 1 per test. Owing to its low cost, rapid results, and easy-to-use characteristics, the MTT-PMS assay may be a potential tool for microorganism detection.
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Affiliation(s)
- Cheng-Han Chen
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan; (C.-H.C.); (Y.-T.T.); (Y.-H.L.); (W.-T.L.)
- Department of Emergency Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan;
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
| | - Yu-Ting Tsao
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan; (C.-H.C.); (Y.-T.T.); (Y.-H.L.); (W.-T.L.)
| | - Po-Ting Yeh
- Department of Ophthalmology, National Taiwan University Hospital, Taipei 10002, Taiwan;
| | - Yu-Hsiang Liao
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan; (C.-H.C.); (Y.-T.T.); (Y.-H.L.); (W.-T.L.)
| | - Yi-Tzu Lee
- Department of Emergency Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan;
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
| | - Wan-Ting Liao
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan; (C.-H.C.); (Y.-T.T.); (Y.-H.L.); (W.-T.L.)
| | - Yung-Chih Wang
- National Defense Medical Center, Division of Infectious Diseases and Tropical Medicine, Department of Internal Medicine, Tri-Service General Hospital, Taipei 11490, Taiwan;
| | - Ching-Fen Shen
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chao-Min Cheng
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan; (C.-H.C.); (Y.-T.T.); (Y.-H.L.); (W.-T.L.)
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Baumgartner D, Johannsen B, Specht M, Lüddecke J, Rombach M, Hin S, Paust N, von Stetten F, Zengerle R, Herz C, Peham JR, Paqué PN, Attin T, Jenzer JS, Körner P, Schmidlin PR, Thurnheer T, Wegehaupt FJ, Kaman WE, Stubbs A, Hays JP, Rusu V, Michie A, Binsl T, Stejskal D, Karpíšek M, Bao K, Bostanci N, Belibasakis GN, Mitsakakis K. OralDisk: A Chair-Side Compatible Molecular Platform Using Whole Saliva for Monitoring Oral Health at the Dental Practice. BIOSENSORS 2021; 11:bios11110423. [PMID: 34821641 PMCID: PMC8615610 DOI: 10.3390/bios11110423] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/22/2021] [Accepted: 10/24/2021] [Indexed: 05/04/2023]
Abstract
Periodontitis and dental caries are two major bacterially induced, non-communicable diseases that cause the deterioration of oral health, with implications in patients' general health. Early, precise diagnosis and personalized monitoring are essential for the efficient prevention and management of these diseases. Here, we present a disk-shaped microfluidic platform (OralDisk) compatible with chair-side use that enables analysis of non-invasively collected whole saliva samples and molecular-based detection of ten bacteria: seven periodontitis-associated (Aggregatibacter actinomycetemcomitans, Campylobacter rectus, Fusobacterium nucleatum, Prevotella intermedia, Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola) and three caries-associated (oral Lactobacilli, Streptococcus mutans, Streptococcus sobrinus). Each OralDisk test required 400 µL of homogenized whole saliva. The automated workflow included bacterial DNA extraction, purification and hydrolysis probe real-time PCR detection of the target pathogens. All reagents were pre-stored within the disk and sample-to-answer processing took < 3 h using a compact, customized processing device. A technical feasibility study (25 OralDisks) was conducted using samples from healthy, periodontitis and caries patients. The comparison of the OralDisk with a lab-based reference method revealed a ~90% agreement amongst targets detected as positive and negative. This shows the OralDisk's potential and suitability for inclusion in larger prospective implementation studies in dental care settings.
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Affiliation(s)
- Desirée Baumgartner
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (B.J.); (M.S.); (J.L.); (M.R.); (S.H.); (N.P.); (F.v.S.); (R.Z.)
- Laboratory for MEMS Applications, IMTEK–Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
- Correspondence: (K.M.); (D.B.); Tel.: +49-761-203-73252 (K.M.); +49-761-203-98724 (D.B.)
| | - Benita Johannsen
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (B.J.); (M.S.); (J.L.); (M.R.); (S.H.); (N.P.); (F.v.S.); (R.Z.)
| | - Mara Specht
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (B.J.); (M.S.); (J.L.); (M.R.); (S.H.); (N.P.); (F.v.S.); (R.Z.)
| | - Jan Lüddecke
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (B.J.); (M.S.); (J.L.); (M.R.); (S.H.); (N.P.); (F.v.S.); (R.Z.)
| | - Markus Rombach
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (B.J.); (M.S.); (J.L.); (M.R.); (S.H.); (N.P.); (F.v.S.); (R.Z.)
| | - Sebastian Hin
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (B.J.); (M.S.); (J.L.); (M.R.); (S.H.); (N.P.); (F.v.S.); (R.Z.)
| | - Nils Paust
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (B.J.); (M.S.); (J.L.); (M.R.); (S.H.); (N.P.); (F.v.S.); (R.Z.)
- Laboratory for MEMS Applications, IMTEK–Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Felix von Stetten
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (B.J.); (M.S.); (J.L.); (M.R.); (S.H.); (N.P.); (F.v.S.); (R.Z.)
- Laboratory for MEMS Applications, IMTEK–Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Roland Zengerle
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (B.J.); (M.S.); (J.L.); (M.R.); (S.H.); (N.P.); (F.v.S.); (R.Z.)
- Laboratory for MEMS Applications, IMTEK–Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Christopher Herz
- AIT Austrian Institute of Technology, Molecular Diagnostics, Giefinggasse 4, 1210 Wien, Austria; (C.H.); (J.R.P.)
| | - Johannes R. Peham
- AIT Austrian Institute of Technology, Molecular Diagnostics, Giefinggasse 4, 1210 Wien, Austria; (C.H.); (J.R.P.)
| | - Pune N. Paqué
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (P.N.P.); (T.A.); (J.S.J.); (P.K.); (P.R.S.); (T.T.); (F.J.W.)
| | - Thomas Attin
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (P.N.P.); (T.A.); (J.S.J.); (P.K.); (P.R.S.); (T.T.); (F.J.W.)
| | - Joël S. Jenzer
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (P.N.P.); (T.A.); (J.S.J.); (P.K.); (P.R.S.); (T.T.); (F.J.W.)
| | - Philipp Körner
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (P.N.P.); (T.A.); (J.S.J.); (P.K.); (P.R.S.); (T.T.); (F.J.W.)
| | - Patrick R. Schmidlin
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (P.N.P.); (T.A.); (J.S.J.); (P.K.); (P.R.S.); (T.T.); (F.J.W.)
| | - Thomas Thurnheer
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (P.N.P.); (T.A.); (J.S.J.); (P.K.); (P.R.S.); (T.T.); (F.J.W.)
| | - Florian J. Wegehaupt
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (P.N.P.); (T.A.); (J.S.J.); (P.K.); (P.R.S.); (T.T.); (F.J.W.)
| | - Wendy E. Kaman
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre Rotterdam (Erasmus MC), 3015 CN Rotterdam, The Netherlands; (W.E.K.); (J.P.H.)
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam (ACTA), Free University of Amsterdam and University of Amsterdam, 1081 LA Amsterdam, The Netherlands
| | - Andrew Stubbs
- Department of Pathology and Clinical Bioinformatics, Erasmus University Medical Centre Rotterdam (Erasmus MC), 3015 CN Rotterdam, The Netherlands;
| | - John P. Hays
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre Rotterdam (Erasmus MC), 3015 CN Rotterdam, The Netherlands; (W.E.K.); (J.P.H.)
| | - Viorel Rusu
- Magtivio B.V., Daelderweg 9, 6361 HK Nuth, The Netherlands;
| | - Alex Michie
- ClinicaGeno Ltd., 11 Station Approach, Coulsdon CR5 2NR, UK; (A.M.); (T.B.)
| | - Thomas Binsl
- ClinicaGeno Ltd., 11 Station Approach, Coulsdon CR5 2NR, UK; (A.M.); (T.B.)
| | - David Stejskal
- Department of Biomedical Sciences, Faculty of Medicine, University of Ostrava, Syllabova 19, 70300 Ostrava, Czech Republic;
- Institute of Laboratory Diagnostics, University Hospital Ostrava, 17. Listopadu 1790/5, 70800 Ostrava, Czech Republic
| | - Michal Karpíšek
- BioVendor-Laboratorní Medicína a.s., Research & Diagnostic Products Division, Karasek 1767/1, Reckovice, 62100 Brno, Czech Republic;
- Faculty of Pharmacy, Masaryk University, Palackeho trida 1946/1, 61242 Brno, Czech Republic
| | - Kai Bao
- Section of Oral Health and Periodontology, Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, 14104 Huddinge, Sweden; (K.B.); (N.B.); (G.N.B.)
| | - Nagihan Bostanci
- Section of Oral Health and Periodontology, Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, 14104 Huddinge, Sweden; (K.B.); (N.B.); (G.N.B.)
| | - Georgios N. Belibasakis
- Section of Oral Health and Periodontology, Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, 14104 Huddinge, Sweden; (K.B.); (N.B.); (G.N.B.)
| | - Konstantinos Mitsakakis
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; (B.J.); (M.S.); (J.L.); (M.R.); (S.H.); (N.P.); (F.v.S.); (R.Z.)
- Laboratory for MEMS Applications, IMTEK–Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
- Correspondence: (K.M.); (D.B.); Tel.: +49-761-203-73252 (K.M.); +49-761-203-98724 (D.B.)
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Mitsakakis K. Novel lab-on-a-disk platforms: a powerful tool for molecular fingerprinting of oral and respiratory tract infections. Expert Rev Mol Diagn 2021; 21:523-526. [PMID: 33902369 DOI: 10.1080/14737159.2021.1920400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Konstantinos Mitsakakis
- Hahn-Schickard, Freiburg, Germany.,Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
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Dutson C, Allen E, Thompson MJ, Hedley JH, Murton HE, Williams DM. Synthesis of Polyanionic C5-Modified 2'-Deoxyuridine and 2'-Deoxycytidine-5'-Triphosphates and Their Properties as Substrates for DNA Polymerases. Molecules 2021; 26:molecules26082250. [PMID: 33924626 PMCID: PMC8069024 DOI: 10.3390/molecules26082250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 11/16/2022] Open
Abstract
Modified 2′-deoxyribonucleotide triphosphates (dNTPs) have widespread applications in both existing and emerging biomolecular technologies. For such applications it is an essential requirement that the modified dNTPs be substrates for DNA polymerases. To date very few examples of C5-modified dNTPs bearing negatively charged functionality have been described, despite the fact that such nucleotides might potentially be valuable in diagnostic applications using Si-nanowire-based detection systems. Herein we have synthesised C5-modified dUTP and dCTP nucleotides each of which are labelled with an dianionic reporter group. The reporter group is tethered to the nucleobase via a polyethylene glycol (PEG)-based linkers of varying length. The substrate properties of these modified dNTPs with a variety of DNA polymerases have been investigated to study the effects of varying the length and mode of attachment of the PEG linker to the nucleobase. In general, nucleotides containing the PEG linker tethered to the nucleobase via an amide rather than an ether linkage proved to be the best substrates, whilst nucleotides containing PEG linkers from PEG6 to PEG24 could all be incorporated by one or more DNA polymerase. The polymerases most able to incorporate these modified nucleotides included Klentaq, Vent(exo-) and therminator, with incorporation by Klenow(exo-) generally being very poor.
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Affiliation(s)
- Claire Dutson
- Centre for Chemical Biology, Department of Chemistry, Sheffield Institute for Nucleic Acids, University of Sheffield, Sheffield S3 7HF, UK; (C.D.); (E.A.); (M.J.T.)
| | - Esther Allen
- Centre for Chemical Biology, Department of Chemistry, Sheffield Institute for Nucleic Acids, University of Sheffield, Sheffield S3 7HF, UK; (C.D.); (E.A.); (M.J.T.)
| | - Mark J. Thompson
- Centre for Chemical Biology, Department of Chemistry, Sheffield Institute for Nucleic Acids, University of Sheffield, Sheffield S3 7HF, UK; (C.D.); (E.A.); (M.J.T.)
| | - Joseph H. Hedley
- QuantuMDx Group, Lugano Building, 57 Melbourne Street, Newcastle upon Tyne NE1 2JQ, UK; (J.H.H.); (H.E.M.)
| | - Heather E. Murton
- QuantuMDx Group, Lugano Building, 57 Melbourne Street, Newcastle upon Tyne NE1 2JQ, UK; (J.H.H.); (H.E.M.)
| | - David M. Williams
- Centre for Chemical Biology, Department of Chemistry, Sheffield Institute for Nucleic Acids, University of Sheffield, Sheffield S3 7HF, UK; (C.D.); (E.A.); (M.J.T.)
- Correspondence: ; Tel.: +44-114-222-9502
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15
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Hin S, Lopez-Jimena B, Bakheit M, Klein V, Stack S, Fall C, Sall A, Enan K, Mustafa M, Gillies L, Rusu V, Goethel S, Paust N, Zengerle R, Frischmann S, Weidmann M, Mitsakakis K. Fully automated point-of-care differential diagnosis of acute febrile illness. PLoS Negl Trop Dis 2021; 15:e0009177. [PMID: 33630852 PMCID: PMC7906357 DOI: 10.1371/journal.pntd.0009177] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 01/26/2021] [Indexed: 12/13/2022] Open
Abstract
Background In this work, a platform was developed and tested to allow to detect a variety of candidate viral, bacterial and parasitic pathogens, for acute fever of unknown origin. The platform is based on a centrifugal microfluidic cartridge, the LabDisk (“FeverDisk” for the specific application), which integrates all necessary reagents for sample-to-answer analysis and is processed by a compact, point-of-care compatible device. Methodology/Principal findings A sample volume of 200 μL per FeverDisk was used. In situ extraction with pre-stored reagents was achieved by bind-wash-elute chemistry and magnetic particles. Enzymes for the loop-mediated isothermal amplification (LAMP) were pre-stored in lyopellet form providing stability and independence from the cold chain. The total time to result from sample inlet to read out was 2 h. The proof-of-principle was demonstrated in three small-scale feasibility studies: in Dakar, Senegal and Khartoum, Sudan we tested biobanked samples using 29 and 9 disks, respectively; in Reinfeld, Germany we tested spiked samples and analyzed the limit of detection using three bacteria simultaneously spiked in whole blood using 15 disks. Overall during the three studies, the FeverDisk detected dengue virus (different serotypes), chikungunya virus, Plasmodium falciparum, Salmonella enterica Typhi, Salmonella enterica Paratyphi A and Streptococcus pneumoniae. Conclusions/Significance The FeverDisk proved to be universally applicable as it successfully detected all different types of pathogens as single or co-infections, while it also managed to define the serotype of un-serotyped dengue samples. Thirty-eight FeverDisks at the two African sites provided 59 assay results, out of which 51 (86.4%) were confirmed with reference assay results. The results provide a promising outlook for future implementation of the platform in larger prospective clinical studies for defining its clinical sensitivity and specificity. The technology aims to provide multi-target diagnosis of the origins of fever, which will help fight lethal diseases and the incessant rise of antimicrobial resistance. Infectious diseases in tropical regions may have a variety of viral, bacterial or parasitic origins and a patient may suffer from several diseases simultaneously, each presenting with acute fever as a clinical symptom. This makes it difficult to determine the origin of the pathogen causing the disease(s). In addition to the endemic infectious diseases, outbreaks of epidemics frequently complicate diagnostic demands. Accurate diagnosis for proper patient management requires the utilization of highly sensitive and specific, rapid, easy-to-use diagnostic tools compatible with point-of-care settings. We describe the use of a disk-shaped microfluidic platform, the “FeverDisk”, for differential diagnosis of acute fever. Our FeverDisk platform demonstrated its capability to detect bacteria, viruses and parasites that are typical of tropical single and co-infections from biobanked samples within only 2 hours and in very good agreement with reference method results. This, in combination with its easy-to-use and point-of-care compatible nature, render our platform a promising candidate for detection of tropical diseases and precise identification of the cause of acute fever, in endemic and epidemic settings. Future work will involve extensive clinical characterization of the platform in prospective studies.
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Affiliation(s)
- Sebastian Hin
- Laboratory for MEMS Applications, IMTEK – Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
| | - Benjamin Lopez-Jimena
- Institute of Aquaculture, University of Stirling, Scotland, United Kingdom
- Mast Group Ltd, Mast House, Bootle, Liverpool, United Kingdom
| | | | - Vanessa Klein
- Laboratory for MEMS Applications, IMTEK – Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
| | - Seamus Stack
- Mast Group Ltd, Mast House, Bootle, Liverpool, United Kingdom
| | - Cheikh Fall
- Arbovirus and viral haemorrhagic fever unit, Institut Pasteur de Dakar, Dakar, Senegal
| | - Amadou Sall
- Arbovirus and viral haemorrhagic fever unit, Institut Pasteur de Dakar, Dakar, Senegal
| | - Khalid Enan
- Department of Virology, Central Laboratory-The Ministry of Higher Education and Scientific Research, Khartoum, Sudan
| | - Mohamed Mustafa
- Department of Virology, Central Laboratory-The Ministry of Higher Education and Scientific Research, Khartoum, Sudan
| | - Liz Gillies
- Mast Group Ltd, Mast House, Bootle, Liverpool, United Kingdom
| | - Viorel Rusu
- MagnaMedics Diagnostics BV, Geleen, The Netherlands
| | - Sven Goethel
- MagnaMedics Diagnostics BV, Geleen, The Netherlands
| | - Nils Paust
- Laboratory for MEMS Applications, IMTEK – Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
- Hahn-Schickard, Freiburg, Germany
| | - Roland Zengerle
- Laboratory for MEMS Applications, IMTEK – Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
- Hahn-Schickard, Freiburg, Germany
| | | | - Manfred Weidmann
- Institute of Aquaculture, University of Stirling, Scotland, United Kingdom
| | - Konstantinos Mitsakakis
- Laboratory for MEMS Applications, IMTEK – Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
- Hahn-Schickard, Freiburg, Germany
- * E-mail:
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Belibasakis GN, Lund BK, Krüger Weiner C, Johannsen B, Baumgartner D, Manoil D, Hultin M, Mitsakakis K. Healthcare Challenges and Future Solutions in Dental Practice: Assessing Oral Antibiotic Resistances by Contemporary Point-Of-Care Approaches. Antibiotics (Basel) 2020; 9:E810. [PMID: 33202544 PMCID: PMC7696509 DOI: 10.3390/antibiotics9110810] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 12/17/2022] Open
Abstract
Antibiotic resistance poses a global threat, which is being acknowledged at several levels, including research, clinical implementation, regulation, as well as by the World Health Organization. In the field of oral health, however, the issue of antibiotic resistances, as well as of accurate diagnosis, is underrepresented. Oral diseases in general were ranked third in terms of expenditures among the EU-28 member states in 2015. Yet, the diagnosis and patient management of oral infections, in particular, still depend primarily on empiric means. On the contrary, on the global scale, the field of medical infections has more readily adopted the integration of molecular-based systems in the diagnostic, patient management, and antibiotic stewardship workflows. In this perspective review, we emphasize the clinical significance of supporting in the future antibiotic resistance screening in dental practice with novel integrated and point-of-care operating tools that can greatly support the rapid, accurate, and efficient administration of oral antibiotics.
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Affiliation(s)
- Georgios N. Belibasakis
- Department of Dental Medicine, Karolinska Institutet, Alfred Nobels allè 8, 14104 Stockholm, Sweden; (B.K.L.); (C.K.W.); (D.M.); (M.H.)
| | - Bodil K. Lund
- Department of Dental Medicine, Karolinska Institutet, Alfred Nobels allè 8, 14104 Stockholm, Sweden; (B.K.L.); (C.K.W.); (D.M.); (M.H.)
- Department of Clinical Dentistry, University of Bergen, 5009 Bergen, Norway
- Department of Oral and Maxillofacial Surgery, Haukeland University Hospital, 5021 Bergen, Norway
| | - Carina Krüger Weiner
- Department of Dental Medicine, Karolinska Institutet, Alfred Nobels allè 8, 14104 Stockholm, Sweden; (B.K.L.); (C.K.W.); (D.M.); (M.H.)
- Department of Oral and Maxillofacial Surgery, Folktandvården Stockholm, Eastman Institutet, 11324 Stockholm, Sweden
| | - Benita Johannsen
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany;
| | - Desirée Baumgartner
- Laboratory for MEMS Applications, IMTEK—Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany;
| | - Daniel Manoil
- Department of Dental Medicine, Karolinska Institutet, Alfred Nobels allè 8, 14104 Stockholm, Sweden; (B.K.L.); (C.K.W.); (D.M.); (M.H.)
| | - Margareta Hultin
- Department of Dental Medicine, Karolinska Institutet, Alfred Nobels allè 8, 14104 Stockholm, Sweden; (B.K.L.); (C.K.W.); (D.M.); (M.H.)
| | - Konstantinos Mitsakakis
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany;
- Laboratory for MEMS Applications, IMTEK—Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany;
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Mao K, Min X, Zhang H, Zhang K, Cao H, Guo Y, Yang Z. Paper-based microfluidics for rapid diagnostics and drug delivery. J Control Release 2020; 322:187-199. [PMID: 32169536 DOI: 10.1016/j.jconrel.2020.03.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/13/2020] [Accepted: 03/07/2020] [Indexed: 02/07/2023]
Abstract
Paper is a common material that is promising for constructing microfluidic chips (lab-on-a-paper) for diagnostics and drug delivery for biomedical applications. In the past decade, extensive research on paper-based microfluidics has accumulated a large number of scientific publications in the fields of biomedical diagnosis, food safety, environmental health, drug screening and delivery. This review focuses on the recent progress on paper-based microfluidic technology with an emphasis on the design, optimization and application of the technology platform, in particular for medical diagnostics and drug delivery. Novel advances have concentrated on engineering paper devices for point-of-care (POC) diagnostics, which could be integrated with nucleic acid-based tests and isothermal amplification experiments, enabling rapid sample-to-answer assays for field testing. Among the isothermal amplification experiments, loop-mediated isothermal amplification (LAMP), an extremely sensitive nucleic acid test, specifically identifies ultralow concentrations of DNA/RNA from practical samples for diagnosing diseases. We thus mainly focus on the paper device-based LAMP assay for the rapid infectious disease diagnosis, foodborne pathogen analysis, veterinary diagnosis, plant diagnosis, and environmental public health evaluation. We also outlined progress on paper microfluidic devices for drug delivery. The paper concludes with a discussion on the challenges of this technology and our insights into how to advance science and technology towards the development of fully functional paper devices in diagnostics and drug delivery.
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Affiliation(s)
- Kang Mao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
| | - Xiaocui Min
- Guangzhou Huali Science and Technology Vocational College, Guangzhou 511325, China
| | - Hua Zhang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China.
| | - Kuankuan Zhang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
| | - Haorui Cao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
| | - Yongkun Guo
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
| | - Zhugen Yang
- School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, United Kingdom.
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Rombach M, Hin S, Specht M, Johannsen B, Lüddecke J, Paust N, Zengerle R, Roux L, Sutcliffe T, Peham JR, Herz C, Panning M, Donoso Mantke O, Mitsakakis K. RespiDisk: a point-of-care platform for fully automated detection of respiratory tract infection pathogens in clinical samples. Analyst 2020; 145:7040-7047. [DOI: 10.1039/d0an01226b] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
The RespiDisk platform for automated detection of multiple viral and bacterial respiratory tract infection pathogens.
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Affiliation(s)
| | | | | | | | | | - Nils Paust
- Hahn-Schickard
- 79110 Freiburg
- Germany
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
| | - Roland Zengerle
- Hahn-Schickard
- 79110 Freiburg
- Germany
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
| | - Louis Roux
- LifeAssay Diagnostics (Pty) Ltd
- 7945 Cape Town
- South Africa
| | | | - Johannes R. Peham
- AIT Austrian Institute of Technology
- Molecular Diagnostics
- Center for Health and Bioresources
- 1210 Vienna
- Austria
| | - Christopher Herz
- AIT Austrian Institute of Technology
- Molecular Diagnostics
- Center for Health and Bioresources
- 1210 Vienna
- Austria
| | - Marcus Panning
- Institute of Virology
- Medical Center – University of Freiburg
- Faculty of Medicine
- University of Freiburg
- 79104 Freiburg
| | - Oliver Donoso Mantke
- Quality Control for Molecular Diagnostics (QCMD)
- Unit 5
- Technology Terrace
- Glasgow G20 0XA Scotland
- UK
| | - Konstantinos Mitsakakis
- Hahn-Schickard
- 79110 Freiburg
- Germany
- Laboratory for MEMS Applications
- IMTEK – Department of Microsystems Engineering
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Mitsakakis K, Hin S, Müller P, Wipf N, Thomsen E, Coleman M, Zengerle R, Vontas J, Mavridis K. Converging Human and Malaria Vector Diagnostics with Data Management towards an Integrated Holistic One Health Approach. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E259. [PMID: 29401670 PMCID: PMC5858328 DOI: 10.3390/ijerph15020259] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 01/27/2018] [Accepted: 01/31/2018] [Indexed: 01/22/2023]
Abstract
Monitoring malaria prevalence in humans, as well as vector populations, for the presence of Plasmodium, is an integral component of effective malaria control, and eventually, elimination. In the field of human diagnostics, a major challenge is the ability to define, precisely, the causative agent of fever, thereby differentiating among several candidate (also non-malaria) febrile diseases. This requires genetic-based pathogen identification and multiplexed analysis, which, in combination, are hardly provided by the current gold standard diagnostic tools. In the field of vectors, an essential component of control programs is the detection of Plasmodium species within its mosquito vectors, particularly in the salivary glands, where the infective sporozoites reside. In addition, the identification of species composition and insecticide resistance alleles within vector populations is a primary task in routine monitoring activities, aiming to support control efforts. In this context, the use of converging diagnostics is highly desirable for providing comprehensive information, including differential fever diagnosis in humans, and mosquito species composition, infection status, and resistance to insecticides of vectors. Nevertheless, the two fields of human diagnostics and vector control are rarely combined, both at the diagnostic and at the data management end, resulting in fragmented data and mis- or non-communication between various stakeholders. To this direction, molecular technologies, their integration in automated platforms, and the co-assessment of data from multiple diagnostic sources through information and communication technologies are possible pathways towards a unified human vector approach.
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Affiliation(s)
- Konstantinos Mitsakakis
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
- Laboratory for MEMS Applications, IMTEK-Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - Sebastian Hin
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - Pie Müller
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Socinstrasse 57, PO Box, 4002 Basel, Switzerland.
- University of Basel, Petersplatz 1, 4003 Basel, Switzerland.
| | - Nadja Wipf
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Socinstrasse 57, PO Box, 4002 Basel, Switzerland.
- University of Basel, Petersplatz 1, 4003 Basel, Switzerland.
| | - Edward Thomsen
- Department of Vector Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L3 5QA, UK.
| | - Michael Coleman
- Department of Vector Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L3 5QA, UK.
| | - Roland Zengerle
- Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
- Laboratory for MEMS Applications, IMTEK-Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - John Vontas
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, 70013 Heraklion, Greece.
- Pesticide Science Laboratory, Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece.
| | - Konstantinos Mavridis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, 70013 Heraklion, Greece.
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