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Zheng J, Qiu Y, Xu Y, Quan M, Zhong Z, Wang Q, Wu Y, Zeng X, Xia C, Liu R. Magnetic particle-based chemiluminescence immunoassay for serum human heart-type fatty acid binding protein measurement. Biotechnol Lett 2023; 45:1431-1440. [PMID: 37736778 DOI: 10.1007/s10529-023-03425-4] [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: 06/06/2023] [Accepted: 08/10/2023] [Indexed: 09/23/2023]
Abstract
OBJECTIVES Human heart-type fatty acid binding protein (HFABP) is a biomarker for diagnosis, risk assessment, and prognosis of acute myocardial infarction, and we aimed to establish an immunoassay for HFABP quantitation. METHODS Human HFABP monoclonal antibodies (mAbs) were developed, evaluated by enzyme-linked immunosorbent assay, and a chemiluminescence enzyme immunoassay (CLEIA) generated. Analytical performance of the CLEIA was evaluated by measuring serum HFABP. RESULTS The prokaryotically expressed rHFABP was purified and four anti-HFABP mAbs with superior detection performance were obtained after immunizing BALB/c mice. MAbs 2B8 and 6B3 were selected as respective capture and detection antibodies for HFABP measurement by CLEIA (detection range, 0.01-128 μg/L). Results using the CLEIA showed excellent correlation (r, 0.9622) and the correlation coefficient was 0.9809 (P < 0.05) by the Tukey test statistical analysis with those of latex-enhanced immunoturbidimetry in hospitals. CONCLUSION Our mAbs and CLEIA for HFABP detection represent new diagnostic tools for measurement of human serum HFABP.
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Affiliation(s)
- Jiao Zheng
- School of Medicine, Hunan Normal University, Changsha, 410013, China
- Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha, 410013, China
| | - Yilan Qiu
- Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha, 410013, China
- College of Life Science, Hunan Normal University, Changsha, 410013, China
| | - Ye Xu
- School of Medicine, Hunan Normal University, Changsha, 410013, China
- Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha, 410013, China
| | - Meifang Quan
- School of Medicine, Hunan Normal University, Changsha, 410013, China
- Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha, 410013, China
| | - Zhihong Zhong
- School of Medicine, Hunan Normal University, Changsha, 410013, China
- Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha, 410013, China
| | - Qinglin Wang
- School of Medicine, Hunan Normal University, Changsha, 410013, China
- Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha, 410013, China
| | - Yi Wu
- Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha, 410013, China
- The First Affiliated Hospital of Hunan Normal University, Changsha, 410008, China
| | - Xuan Zeng
- School of Medicine, Hunan Normal University, Changsha, 410013, China
- Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha, 410013, China
| | - Chuan Xia
- Department of Laboratory Medicine, The First People's Hospital of Chenzhou, Chenzhou, 423000, China
| | - Rushi Liu
- School of Medicine, Hunan Normal University, Changsha, 410013, China.
- Immunodiagnostic Reagents Engineering Research Center of Hunan Province, Hunan Normal University, Changsha, 410013, China.
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Mwangi VI, Netto RLA, de Morais CEP, Silva AS, Silva BM, Lima AB, Neves JCF, Borba MGS, Val FFDAE, de Almeida ACG, Costa AG, Sampaio VDS, Gardinassi LG, de Lacerda MVG, Monteiro WM, de Melo GC. Temporal patterns of cytokine and injury biomarkers in hospitalized COVID-19 patients treated with methylprednisolone. Front Immunol 2023; 14:1229611. [PMID: 37662953 PMCID: PMC10468998 DOI: 10.3389/fimmu.2023.1229611] [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: 05/26/2023] [Accepted: 07/26/2023] [Indexed: 09/05/2023] Open
Abstract
Background The novel coronavirus disease 2019 (COVID-19) presents with complex pathophysiological effects in various organ systems. Following the COVID-19, there are shifts in biomarker and cytokine equilibrium associated with altered physiological processes arising from viral damage or aggressive immunological response. We hypothesized that high daily dose methylprednisolone improved the injury biomarkers and serum cytokine profiles in COVID-19 patients. Methods Injury biomarker and cytokine analysis was performed on 50 SARS-Cov-2 negative controls and 101 hospitalized severe COVID-19 patients: 49 methylprednisolone-treated (MP group) and 52 placebo-treated serum samples. Samples from the treated groups collected on days D1 (pre-treatment) all the groups, D7 (2 days after ending therapy) and D14 were analyzed. Luminex assay quantified the biomarkers HMGB1, FABP3, myoglobin, troponin I and NTproBNP. Immune mediators (CXCL8, CCL2, CXCL9, CXCL10, TNF, IFN-γ, IL-17A, IL-12p70, IL-10, IL-6, IL-4, IL-2, and IL-1β) were quantified using cytometric bead array. Results At pretreatment, the two treatment groups were comparable demographically. At pre-treatment (D1), injury biomarkers (HMGB1, TnI, myoglobin and FABP3) were distinctly elevated. At D7, HMGB1 was significantly higher in the MP group (p=0.0448) compared to the placebo group, while HMGB1 in the placebo group diminished significantly by D14 (p=0.0115). Compared to healthy control samples, several immune mediators (IL-17A, IL-6, IL-10, MIG, MCP-1, and IP-10) were considerably elevated at baseline (all p≤0.05). At D7, MIG and IP-10 of the MP-group were significantly lower than in the placebo-group (p=0.0431, p=0.0069, respectively). Longitudinally, IL-2 (MP-group) and IL-17A (placebo-group) had increased significantly by D14. In placebo group, IL-2 and IL-17A continuously increased, as IL-12p70, IL-10 and IP-10 steadily decreased during follow-up. The MP treated group had IL-2, IFN-γ, IL-17A and IL-12p70 progressively increase while IL-1β and IL-10 gradually decreased towards D14. Moderate to strong positive correlations between chemokines and cytokines were observed on D7 and D14. Conclusion These findings suggest MP treatment could ameliorate levels of myoglobin and FABP3, but appeared to have no impact on HMGB1, TnI and NTproBNP. In addition, methylprednisolone relieves the COVID-19 induced inflammatory response by diminishing MIG and IP-10 levels. Overall, corticosteroid (methylprednisolone) use in COVID-19 management influences the immunological molecule and injury biomarker profile in COVID-19 patients.
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Affiliation(s)
- Victor Irungu Mwangi
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
| | | | - Carlos Eduardo Padron de Morais
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
- Fundação de Medicina Tropical Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
| | - Arineia Soares Silva
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
| | - Bernardo Maia Silva
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
- Fundação de Medicina Tropical Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
| | - Amanda Barros Lima
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Brazil
| | | | - Mayla Gabriela Silva Borba
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
- Fundação de Medicina Tropical Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
| | - Fernando Fonseca de Almeida e Val
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
- Fundação de Medicina Tropical Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
| | - Anne Cristine Gomes de Almeida
- Fundação de Medicina Tropical Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás (UFG), Goiânia, Brazil
| | - Allyson Guimarães Costa
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
- Fundação de Medicina Tropical Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Brazil
- Escola de Enfermagem de Manaus, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM) Universidade do Estado do Amazonas (UEA), Manaus, Brazil
| | - Vanderson de Souza Sampaio
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
- Fundação de Medicina Tropical Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
- Instituto Todos pela Saúde, São Paulo, São Paulo, Brazil
| | - Luiz Gustavo Gardinassi
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás (UFG), Goiânia, Brazil
| | - Marcus Vinicius Guimarães de Lacerda
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
- Fundação de Medicina Tropical Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
- Instituto Leônidas & Maria Deane/Fundação Oswaldo Cruz (ILMD/Fiocruz Amazônia), Manaus, Brazil
| | - Wuelton Marcelo Monteiro
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
- Fundação de Medicina Tropical Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
| | - Gisely Cardoso de Melo
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
- Fundação de Medicina Tropical Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM) Universidade do Estado do Amazonas (UEA), Manaus, Brazil
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Janwan P, Intapan PM, Sadaow L, Rodpai R, Yamasaki H, Boonroumkaew P, Sanpool O, Thanchomnang T, Sadee P, Maleewong W. Development of Immunochromatographic Test Kit for Rapid Detection of Specific IgG4 Antibody in Whole-Blood Samples for Diagnosis of Human Gnathostomiasis. Diagnostics (Basel) 2021; 11:diagnostics11050862. [PMID: 34064745 PMCID: PMC8151850 DOI: 10.3390/diagnostics11050862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/04/2021] [Accepted: 05/08/2021] [Indexed: 11/16/2022] Open
Abstract
Human gnathostomiasis is a harmful food-borne zoonosis caused by roundworms of the genus Gnathostoma. The parasite can occasionally migrate to the central nervous system, causing life-threatening disease and death. Here, we report a new point-of-care (POC) test kit, the gnathostomiasis blood immunochromatographic test (GB-ICT) kit. The kit is based on recombinant Gnathostoma spinigerum antigen and detects specific IgG4 antibody in whole-blood samples (WBSs). The GB-ICT kit showed potentially high diagnostic values with simulated WBSs (n = 248), which were obtained by spiking patients’ sera with red blood cells. The accuracy, sensitivity, specificity, and positive and negative predictive values were 95.2%, 100%, 93.8%, 81.5%, and 100%, respectively. Ten WBSs from clinically suspected gnathostomiasis patients were all positive according to the GB-ICT kit, while 10 WBSs from healthy volunteers were negative. The GB-ICT kit is a simple and convenient POC testing tool using finger-prick blood samples: venous blood sampling and serum separation processes are not required. The GB-ICT kit can support clinical diagnosis in remote areas and field settings without sophisticated equipment facilities.
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Affiliation(s)
- Penchom Janwan
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80161, Thailand;
| | - Pewpan M. Intapan
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (P.M.I.); (L.S.); (R.R.); (P.B.); (O.S.)
- Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Lakkhana Sadaow
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (P.M.I.); (L.S.); (R.R.); (P.B.); (O.S.)
- Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Rutchanee Rodpai
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (P.M.I.); (L.S.); (R.R.); (P.B.); (O.S.)
- Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Hiroshi Yamasaki
- Department of Parasitology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan;
| | - Patcharaporn Boonroumkaew
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (P.M.I.); (L.S.); (R.R.); (P.B.); (O.S.)
- Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Oranuch Sanpool
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (P.M.I.); (L.S.); (R.R.); (P.B.); (O.S.)
- Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Tongjit Thanchomnang
- Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
- Faculty of Medicine, Mahasarakham University, Maha Sarakham 44000, Thailand
| | - Phuangphaka Sadee
- Clinical Immunology Unit, Srinagarind Hospital, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Wanchai Maleewong
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (P.M.I.); (L.S.); (R.R.); (P.B.); (O.S.)
- Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand;
- Correspondence: ; Tel.: +66-4336-3434
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Development of a Quantitative Detection Card for Heart-type Fatty Acid-binding Protein based on Background Fluorescence Quenching Immune Chromatography. J Med Biochem 2019; 38:172-180. [PMID: 30867645 PMCID: PMC6410999 DOI: 10.2478/jomb-2018-0017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 04/23/2018] [Indexed: 11/21/2022] Open
Abstract
Background To establish a fast and simple quantitative method for detection of heart-type fatty acid-binding protein (H-FABP) in serum based on a background fluorescence quenching immunochromatographic assay. Methods A detection card based on the double-antibody sandwich double-antibody method with background fluorescence quenching was developed for quantitative measurement of H-FABP in serum. The optimal concentrations of control for coating the test and control lines were determined as well as the concentrations of gold-labeled antibodies used in preparing the detection system. The detection method for H-FABP in serum was established and validated using real-world clinical samples. Results The optimal concentrations of labeling antibody and coating antibody were 5.0 μg/mL and 1.0 mg/mL, respectively. The test card had a sensitivity of 1.15 ng/mL over a linear concentration range of 0–100 ng/mL. Based on three batches prepared for testing the card, the relative standard deviation (RSD) within batches was less than 15% without a significant difference (P=0.942). The detection method was tested against common interfering substances in serum, such as bilirubin, triglyceride and serum anticoagulants ethylenediamine tetraacetic acid (EDTA), heparin, and sodium citrate, and no significant cross-reaction was detected. The test method was further validated with 50 clinical serum samples, and the test results were comparable with standard reference detection methods with good correlation (R=0.95). Conclusion Our study presents a new method with strong specificity and sensitivity for the detection of H-FABP in serum, which could promote H-FABP detection in a broad range of applications.
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Nsabimana A, Ma X, Yuan F, Du F, Abdussalam A, Lou B, Xu G. Nanomaterials-based Electrochemical Sensing of Cardiac Biomarkers for Acute Myocardial Infarction: Recent Progress. ELECTROANAL 2018. [DOI: 10.1002/elan.201800641] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Anaclet Nsabimana
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 People's Republic of China
- University of Chinese Academy of Sciences; Chinese Academy of Sciences No. 19A Yuquanlu; Beijing 100049 People's Republic of China
| | - Xiangui Ma
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 People's Republic of China
- University of Science and Technology of China Anhui; 230026 People's Republic of China
| | - Fan Yuan
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 People's Republic of China
- University of Science and Technology of China Anhui; 230026 People's Republic of China
| | - Fangxin Du
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 People's Republic of China
- University of Science and Technology of China Anhui; 230026 People's Republic of China
| | - Abubakar Abdussalam
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 People's Republic of China
- University of Science and Technology of China Anhui; 230026 People's Republic of China
| | - Baohua Lou
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 People's Republic of China
- University of Science and Technology of China Anhui; 230026 People's Republic of China
| | - Guobao Xu
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 People's Republic of China
- University of Chinese Academy of Sciences; Chinese Academy of Sciences No. 19A Yuquanlu; Beijing 100049 People's Republic of China
- University of Science and Technology of China Anhui; 230026 People's Republic of China
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Prathapan R, McLiesh H, Garnier G, Tabor RF. Surface Engineering of Transparent Cellulose Nanocrystal Coatings for Biomedical Applications. ACS APPLIED BIO MATERIALS 2018; 1:728-737. [DOI: 10.1021/acsabm.8b00193] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Ragesh Prathapan
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - Heather McLiesh
- Bioresources Processing Research Institute of Australia (BioPRIA), Department of Chemical Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Gil Garnier
- Bioresources Processing Research Institute of Australia (BioPRIA), Department of Chemical Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Rico F. Tabor
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
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Detection of heart-type fatty acid-binding protein (h-FABP) using piezoresistive polymer microcantilevers functionalized by a dry method. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0723-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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8
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Gong Y, Hu J, Choi JR, You M, Zheng Y, Xu B, Wen T, Xu F. Improved LFIAs for highly sensitive detection of BNP at point-of-care. Int J Nanomedicine 2017; 12:4455-4466. [PMID: 28670119 PMCID: PMC5479264 DOI: 10.2147/ijn.s135735] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Heart failure (HF) has become a major cause of morbidity and mortality with a significant global economic burden. Although well-established clinical tests could provide early diagnosis, access to these tests is limited in developing countries, where a relatively higher incidence of HF is present. This has prompted an urgent need for developing a cost-effective, rapid and robust diagnostic tool for point-of-care (POC) detection of HF. Lateral flow immunoassay (LFIA) has found widespread applications in POC diagnostics. However, the low sensitivity of LFIA limits its ability to detect important HF biomarkers (e.g., brain natriuretic peptide [BNP]) that are normally present in low concentration in blood. To address this issue, we developed an improved LFIA by optimizing the gold nanoparticle (GNP)–antibody conjugate conditions (e.g., the conjugate pH and the amount of added antibody), the diameter of GNP and the concentration of antibody embedded on the test line and modifying the structure of test strip. Through these improvements, the proposed test strip enabled the detection of BNP down to 0.1 ng/mL within 10–15 min, presenting ~15-fold sensitivity enhancement over conventional lateral flow assay. We also successfully applied our LFIA in the analysis of BNP in human serum samples, highlighting its potential use for clinical assessment of HF. The developed LFIA for BNP could rapidly rule out HF with the naked eye, offering tremendous potential for POC test and personalized medicine.
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Affiliation(s)
- Yan Gong
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University.,Xi'an Diandi Biotech Company
| | - Jie Hu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University
| | - Jane Ru Choi
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University
| | - Minli You
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University
| | - Yamin Zheng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University
| | - Bo Xu
- School of Finance and Economics, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | | | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University
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El Shorbagy HH, Elsayed MA, Kamal NM, Azab AA, Bassiouny MM, Ghoneim IA. Heart-type fatty acid-binding protein as a predictor of cardiac ischemia in intractable seizures in children. J Pediatr Neurosci 2016; 11:175-181. [PMID: 27857782 PMCID: PMC5108116 DOI: 10.4103/1817-1745.193364] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Children with intractable epilepsy have chronic dysfunction of the autonomic nervous system causing myocardial ischemia. Heart-type fatty acid-binding protein (H-FABP) is a sensitive biomarker for myocardial ischemia. AIMS We aimed to evaluate serum levels of H-FABP during seizures compared to their interictal levels and healthy controls and changes in heart rate (HR) and HR variability (HRV) in epileptic children with intractable seizures. MATERIALS AND METHODS We included 30 epileptic seizures in 25 children with intractable epilepsy and 30 matched controls. They were subjected to video-electroencephalography monitoring simultaneously with Holter electrocardiogram and measurement of H-FABP. RESULTS Mean serum levels of H-FABP were increased significantly in patients either in the ictal or interictal periods compared to that in the controls (P < 0.001 and P< 0.01, respectively). There is no significant difference in serum levels of the H-FABP in the ictal and interictal periods. The basal time domain measures of HRV were significantly lower in the patient group compared to the control group. CONCLUSION H-FABP might suggest a degree of myocardial ischemia in intractable epilepsy. HRV is impaired in patients with refractory seizures.
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Affiliation(s)
| | | | | | - Ahmed A. Azab
- Department of Pediatric, Benha University, Benha, Egypt
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10
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Chen MX, Chen JX, Chen SH, Huang DN, Ai L, Zhang RL. Development of Lateral Flow Immunoassay for Antigen Detection in Human Angiostrongylus cantonensis Infection. THE KOREAN JOURNAL OF PARASITOLOGY 2016; 54:375-80. [PMID: 27417097 PMCID: PMC4977790 DOI: 10.3347/kjp.2016.54.3.375] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 05/04/2016] [Accepted: 05/07/2016] [Indexed: 11/23/2022]
Abstract
Angiostrongyliasis is difficult to be diagnosed for the reason that no ideal method can be used. Serologic tests require specific equipment and are not always available in poverty-stricken zone and are time-consuming. A lateral flow immunoassay (LFIA) may be useful for angiostrongyliasis control. We established a LFIA for the diagnosis of angiostrongyliasis based on 2 monoclonal antibodies (mAbs) against antigens of Angiostrongylus cantonensis adults. The sensitivity and specificity were 91.1% and 100% in LFIA, while those of commercial ELISA kit was 97.8% and 86.3%, respectively. Youden index was 0.91 in LFIA and 0.84 in commercial ELISA kit. LFIA showed detection limit of 1 ng/ml of A. cantonensis ES antigens. This LFIA was simple, rapid, highly sensitive and specific, which opened an alternative approach for the diagnosis of human angiostrongyliasis.
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Affiliation(s)
- Mu-Xin Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health and Family Planning Commission, Shanghai 200025, PR China
- Shenzhen Center for Diseases Control and Prevention, Shenzhen, Guangdong Province 518055, PR China
- Department of Microbiology and Microbial Engineering, School of Life Sciences, Fudan University, Shanghai 200438, PR China
| | - Jia-Xu Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health and Family Planning Commission, Shanghai 200025, PR China
| | - Shao-Hong Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health and Family Planning Commission, Shanghai 200025, PR China
| | - Da-Na Huang
- Shenzhen Center for Diseases Control and Prevention, Shenzhen, Guangdong Province 518055, PR China
| | - Lin Ai
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health and Family Planning Commission, Shanghai 200025, PR China
- Shenzhen Center for Diseases Control and Prevention, Shenzhen, Guangdong Province 518055, PR China
| | - Ren-Li Zhang
- Shenzhen Center for Diseases Control and Prevention, Shenzhen, Guangdong Province 518055, PR China
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Hou W, Wang S, Wang X, Han X, Fan H, Cao S, Yue J, Wang Q, Jiang W, Ding C, Yu S. Development of colloidal gold immunochromatographic strips for detection of Riemerella anatipestifer. PLoS One 2015; 10:e0122952. [PMID: 25822983 PMCID: PMC4378999 DOI: 10.1371/journal.pone.0122952] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 02/16/2015] [Indexed: 11/19/2022] Open
Abstract
Riemerella anatipestifer is one of the most important bacterial pathogen of ducks and causes a contagious septicemia. R. anatipestifer infection causes serositis syndromes similar to other bacterial infections in ducks, including infection by Escherichia coli, Salmonella enterica and Pasteurella multocida. Clinically differentiating R. anatipestifer infections from other bacterial pathogen infections is usually difficult. In this study, MAb 1G2F10, a monoclonal antibody against R. anatipestifer GroEL, was used to develop a colloidal gold immunochromatographic strip. Colloidal gold particles were prepared by chemical synthesis to an average diameter of 20 ± 5.26 nm by transmission electron microscope imaging. MAb 1G2F10 was conjugated to colloidal gold particles and the formation of antibody-colloidal gold conjugates was monitored by UV/Vis spectroscopy. Immunochromatographic strips were assembled in regular sequence through different accessories sticked on PVC plate. Strips specifically detected R. anatipestifer within 10 min, but did not detect E. coli, S. enterica and P. multocida. The detection limit for R. anatipestifer was 1 × 10(6) colony forming units, which was 500 times higher than a conventional agglutination test. Accuracy was 100% match to multiplex PCR. Assay stability and reproducibility were excellent after storage at 4°C for 6 months. The immunochromatographic strips prepared in this study offer a specific, sensitive, and rapid detection method for R. anatipestifer, which is of great importance for the prevention and control of R. anatipestifer infections.
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Affiliation(s)
- Wanwan Hou
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Shaohui Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Xiaolan Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Xiangan Han
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Hongjie Fan
- Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Shoulin Cao
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Jiaping Yue
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Quan Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Wei Jiang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Chan Ding
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Shengqing Yu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
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12
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Quartz crystal microbalance for the cardiac markers/antibodies binding kinetic measurements in the plasma samples. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.04.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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13
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Glatz JFC, Renneberg R. Added value of H-FABP as plasma biomarker for the early evaluation of suspected acute coronary syndrome. ACTA ACUST UNITED AC 2014. [DOI: 10.2217/clp.13.87] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Chen H, Wang H, Li X, You L, Wei J, Shi W. Evaluation of a rapid detection influenza virus a antigens kit using paired serum antibody test. Yonsei Med J 2013; 54:476-9. [PMID: 23364984 PMCID: PMC3575966 DOI: 10.3349/ymj.2013.54.2.476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
PURPOSE To evaluate the feasibility for gold immunochromatographic assay (GICA) in rapid detection of influenza virus A infection. MATERIALS AND METHODS Seventy-three patients were enrolled. All patients contributed nasopharyngeal secretions and paired serum samples. Nasopharyngeal secretions was used for colloidal gold immunochromatographic rapid assay for influenza A virus immediately after the collection of specimen. Paired serum samples were used for the hemagglutination inhibition assay at the Centers for Disease Control and Prevention influenza network laboratory in Beijing. RESULTS Compare GICA test to hemagglutination inhibition (HI) assay, the Kappa value was 0.402 and the p value in the paired χ² test was higher than 0.05. Therefore, the difference was not statistically significant. The sensitivity of GICA was 50.0% and the specificity was 90.2%, and the negative predictive value was 90.2%. CONCLUSION The sensitivity for Influenza A antigen detection by using GICA is relatively low, the specificity is relatively satisfactory.
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Affiliation(s)
- Hangwei Chen
- Department of Respiratory Medicine, The Military General Hospital of Beijing, PLA NO.5 Nanmencang, Dongcheng District, Beijing 100700, China.
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15
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Kakoti A, Goswami P. Heart type fatty acid binding protein: structure, function and biosensing applications for early detection of myocardial infarction. Biosens Bioelectron 2013; 43:400-11. [PMID: 23357005 DOI: 10.1016/j.bios.2012.12.057] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 12/20/2012] [Accepted: 12/27/2012] [Indexed: 12/16/2022]
Abstract
Heart type fatty acid binding protein (HFABP) as an early marker of cardiac injury holds a promising future with studies indicating surpassing performance as compared to myoglobin. As a plasma marker, this cytoplasmic protein owing to its small size (∼15kDa) and water solubility, appears readily in the blood-stream following cardiomyocyte damage, reaching peak levels within 6h of symptom onset. Low plasma levels of HFABP as compared to tissue levels indicate that minute amounts of the protein when released during myocardial infarction leads to a greater proportional rise. These parameters of kinetic release make it an ideal candidate for rapid assessment of acute myocardial infarction (AMI). The need for development of rapid immunoassays and immunotests so as to use HFABP as an early marker for AMI exclusion is tremendous. In the present review, we outline the various immunoassays and immunosensors developed so far for the detection of HFABP in buffer, plasma or whole blood. The principles behind the detection techniques along with their performance parameters compared to standard ELISA techniques are elucidated.
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Affiliation(s)
- Ankana Kakoti
- Department of Biotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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16
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Freund Y, Chenevier-Gobeaux C, Leumani F, Claessens YE, Allo JC, Doumenc B, Cosson C, Bonnet P, Riou B, Ray P. Heart-type fatty acid binding protein and the diagnosis of acute coronary syndrome in the ED. Am J Emerg Med 2011; 30:1378-84. [PMID: 22169585 DOI: 10.1016/j.ajem.2011.10.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Revised: 10/01/2011] [Accepted: 10/02/2011] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND In combination with cardiac troponin, heart-type fatty acid binding protein (h-FABP)-a biomarker of myocardial necrosis-offers the possibility of rapidly eliminating the diagnosis of acute myocardial infarction (AMI). OBJECTIVE The main objective of this study was to assess the incremental value of h-FABP to cardiac troponin for a rapid elimination of AMI, according to the pretest probability (PTP) of AMI. METHODS In consecutive patients presenting to emergency departments (ED) with chest pain less than 6 hours suggestive of AMI, h-FABP levels were measured, blinded to the ED physicians, who were asked to quote the PTP of AMI. The discharge diagnosis was adjudicated by 2 independent experts, blind to the h-FABP level. RESULTS Three hundred seventeen patients (mean age of 57 years) were included in whom 149 had (47%) low, 117 (37%) moderate, and 51 (16%) high PTP. The final diagnosis was AMI in 45 patients (14%), including 16 STEMIs (5%). The negative predictive value for diagnostic elimination of AMI of an h-FABP less than 3 μg/L, combined with a negative cTnI was not higher than that of cardiac troponin I (cTnI) alone (96% [95% confidence interval, 93%-98%] vs 95% [93%-98%]), regardless of the PTP). Even in the low-PTP group, we did not demonstrate a significant improvement in negative predictive value with the addition of h-FABP, compare with that of cTnI alone (100% [97%-100%] vs 99% [96%-100%]). CONCLUSION In triage of patients with chest pain, use of h-FABP does not provide useful additional information to cTnI for excluding the diagnosis of ST-elevation myocardial infarction and non-ST-elevation myocardial infarction diagnosis, whatever the PTP.
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Affiliation(s)
- Yonathan Freund
- Department of Emergency Department, Hôpital Pitié-Salpétrière, Assistance Publique-Hôpitaux de Paris, Univ UPMC Paris 6, 75005 Paris, France.
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17
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Cardiac biomarkers in the critically ill. Crit Care Clin 2011; 27:327-43. [PMID: 21440204 DOI: 10.1016/j.ccc.2010.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Cardiac biomarkers have well-established roles in acute coronary syndrome and congestive heart failure. In many instances, the detection of cardiac biomarkers may aid in the diagnosis and risk assessment of critically ill patients. Despite increasing interest in the use of cardiac biomarkers in noncardiac critical illness, no clear consensus exists on how and in which settings markers should be measured. This article briefly describes what constitutes an ideal biomarker and focuses on those that have been most well studied in critical illness, specifically troponin, the natriuretic peptides, and heart-type fatty acid-binding protein.
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Kumagai K, Ohnaka H, Okamoto F, Yasuda M, Kamegai H, Ohmichi M. Early diagnosis of postpartum acute myocardial infarction with combined use of troponin T and heart-type fatty acid-binding protein rapid assay. J Obstet Gynaecol Res 2011; 37:1484-8. [DOI: 10.1111/j.1447-0756.2011.01535.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Li X, Chen H, Wei J, Lv N, You L. The evaluation of colloidal gold immunochromatographic assay (GICA) for rapid diagnosis of influenza A disease. Clin Chem Lab Med 2011; 49:1533-7. [DOI: 10.1515/cclm.2011.235] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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20
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Açikalin A, Satar S, Sebe A, Köse A, Akpinar O. H-FABP in cases of carbon monoxide intoxication admitted to the emergency room. Hum Exp Toxicol 2010; 30:443-7. [PMID: 21075804 DOI: 10.1177/0960327110389836] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Carbon monoxide (CO) intoxication causes cardiovascular problems as a result of diffuse tissue hypoxia. Cardiac biochemical markers and electrocardiographic changes have been reported in CO intoxications. Human fatty acid-binding protein (H-FABP) has been recently used as a reliable marker in identifying early cardiac damage. In this prospective study, we aimed to investigate the advantages of the use of H-FABP, in evaluating the findings of myocardial ischemia in patients with CO intoxication in our region. METHODS Twenty four successive patients admitted to the emergency department with acute CO intoxication were included in our study. Serum traditional markers and H-FABP were also taken in the earliest period for evaluation of cardiac damage. RESULTS The creatinine kinase MB (CKMB) levels were positive in 11 of the patients; however, H-FABP and troponin T levels were positive in only 3 of them. One of these subjects had elevated level of H-FABP in the short-term and increasing troponin T level increasing level of troponin T during the follow-up period. CONCLUSION The obtained data supports the use of H-FABP, a specific indicator in identifying the cardiotoxicity of CO intoxications at an early phase.
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Affiliation(s)
- Ayça Açikalin
- Department of Emergency Medicine, 25 Aralık Government Hospital, Gaziantep, Turkey.
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21
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Goldhaber SZ. Fine-Tuning Risk Stratification for Acute Pulmonary Embolism With Cardiac Biomarkers**Editorials published in the Journal of the American College of Cardiologyreflect the views of the authors and do not necessarily represent the views of JACCor the American College of Cardiology. J Am Coll Cardiol 2010; 55:2158-9. [DOI: 10.1016/j.jacc.2009.10.079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2009] [Accepted: 10/20/2009] [Indexed: 10/19/2022]
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22
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Cho IH, Seo SM, Paek EH, Paek SH. Immunogold–silver staining-on-a-chip biosensor based on cross-flow chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:271-7. [DOI: 10.1016/j.jchromb.2009.07.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2009] [Revised: 07/05/2009] [Accepted: 07/13/2009] [Indexed: 11/25/2022]
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Yan GT, Lin J, Hao XH, Xue H, Zhang K, Wang LH. Heart-type fatty acid-binding protein is a useful marker for organ dysfunction and leptin alleviates sepsis-induced organ injuries by restraining its tissue levels. Eur J Pharmacol 2009; 616:244-50. [PMID: 19576209 DOI: 10.1016/j.ejphar.2009.06.039] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2009] [Revised: 05/18/2009] [Accepted: 06/22/2009] [Indexed: 12/16/2022]
Abstract
Heart-type fatty acid-binding protein (H-FABP) is widely distributed and has been used to diagnose certain diseases. However, its alteration during infection-evoked organ dysfunction, and the potential association between leptin and it in injury or infection has not been investigated. In the current study, serum H-FABP, leptin, C-reactive protein and interleukin-1beta in the patients with pulmonary infection-induced multiple organ dysfunction were detected. Moreover, a mouse model of sepsis was established, and serum alanine transaminase, uric acid, tissue H-FABP, myeloperoxidase, superoxide dismutase activity and histological alterations in lung and intestine were investigated. Serum H-FABP and leptin increased simultaneously and significantly in the patients, and leptin alleviated pulmonary and intestinal injuries by restraining tissue H-FABP secretions in the mouse model of sepsis. Other investigated variables showed different but independent alterations. In conclusion, H-FABP represents a useful diagnostic marker for organ dysfunction, and its association with leptin will be a novel target for emergency aid.
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Affiliation(s)
- Guang-tao Yan
- Research Laboratory of Biochemistry, Basic Medical Institute, Chinese PLA General Hospital, Beijing, PR China.
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24
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Jin X, Ray R, Ray P. An immunochromatographic assay to detect reduced level of laminin-5γ2 in sulfur mustard-exposed normal human epidermal keratinocytes. J Appl Toxicol 2008; 28:759-64. [DOI: 10.1002/jat.1335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Peng F, Wang Z, Zhang S, Wu R, Hu S, Li Z, Wang X, Bi D. Development of an immunochromatographic strip for rapid detection of H9 subtype avian influenza viruses. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2008; 15:569-74. [PMID: 18199737 PMCID: PMC2268275 DOI: 10.1128/cvi.00273-07] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2007] [Revised: 10/24/2007] [Accepted: 01/09/2008] [Indexed: 11/20/2022]
Abstract
An immunochromatographic strip was developed for the detection of the H9 subtype of avian influenza viruses (H9AIVs) in poultry, using two monoclonal antibodies (MAb), 4C4 for H9AIV hemagglutinin (HA) and 4D4 for nucleoprotein. The 4C4 MAb was labeled with colloidal gold as the detection reagent, and the 4D4 MAb was blotted on the test line while a goat anti-mouse antibody was used on the control line of the nitrocellulose membrane. In comparison with the HA and HA inhibition (HI) tests, the strip was specific for the detection of H9AIV, with a sensitivity at 0.25 HA units within 10 min. Storage of the strips at room temperature for 6 months or at 4 degrees C for 12 months did not change their sensitivity and specificity. Evaluation of the strip with experimental tracheal and cloacal swab samples collected from H9N2-infected chickens revealed that the strip detected the H9N2 viruses on day 3 postinoculation, earlier than the appearance of clinical symptoms. Application of the strip for the analysis of 157 tracheal or cloacal samples from potentially infected chickens on five poultry farms showed that four farms had chickens that were infected with H9AIV. Further characterization of 10 positive and 30 negative randomly selected samples showed that no single sample was false positive or negative, as determined by the standard virus isolation and HI assays. Therefore, the immunochromatographic strip for the detection of H9AIVs has high specificity, sensitivity, and stability. This finding, together with the advantages of rapid detection and easy operation and without the requirement for special skills and equipment, makes the strip suitable for onsite detection and the differentiation of H9AIVs from other viruses in poultry.
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Affiliation(s)
- Fuhu Peng
- Laboratory of Animal Microbiology and Immunology, State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
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Peng D, Hu S, Hua Y, Xiao Y, Li Z, Wang X, Bi D. Comparison of a new gold-immunochromatographic assay for the detection of antibodies against avian influenza virus with hemagglutination inhibition and agar gel immunodiffusion assays. Vet Immunol Immunopathol 2007; 117:17-25. [PMID: 17337303 DOI: 10.1016/j.vetimm.2007.01.022] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2006] [Revised: 12/13/2006] [Accepted: 01/31/2007] [Indexed: 11/29/2022]
Abstract
A gold-immunochromatographic test-strip kit is used for the detection of IgG antibodies against the nucleocapsid protein of Avian Influenza Virus (AIV). Compared with the "gold standard", i.e. hemagglutination inhibition (HI) and agar gel immunodiffusion (AGID) assays, the gold-immunochromatographic test strip has many advantages, such as high specificity, high sensitivity, convenience, is rapid and has low cost. The gold-immunochromatographic test strip provides a unique tool for the on-site surveillance and diagnosis of Avian Influenza.
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Affiliation(s)
- DaPeng Peng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
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27
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Mad P, Domanovits H, Fazelnia C, Stiassny K, Russmüller G, Cseh A, Sodeck G, Binder T, Christ G, Szekeres T, Laggner A, Herkner H. Human heart-type fatty-acid-binding protein as a point-of-care test in the early diagnosis of acute myocardial infarction. QJM 2007; 100:203-10. [PMID: 17347171 DOI: 10.1093/qjmed/hcm007] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND At very early stages of acute myocardial infarction (AMI), highly sensitive biomarkers are still lacking. AIM To evaluate the utility of human heart-type fatty acid-binding protein (h-FABP) for early diagnosis of AMI. DESIGN Prospective diagnostic study. METHODS Consecutive patients presenting to the emergency department with chest pain or dyspnoea within 24 h of symptom onset were included. At presentation, the h-FABP test result was compared to the standard diagnostic work-up, including repeated ECG and troponin T measurements. Sensitivity analysis was performed for inconclusive tests. RESULTS We enrolled 280 patients presenting to hospital with a median symptom onset of 3 h (IQR 2-6 h): 109 (39%) had AMI. At presentation, h-FABP had a sensitivity of 69% (95%CI 59-77) and specificity of 74% (95%CI 66-80); 45 tests were false-positive and 34 were false-negative. Omitting inconclusive tests increased sensitivity and specificity only slightly. AMI was identified significantly earlier by h-FABP than by troponin T (24 vs. 8 patients, p=0.005). DISCUSSION Although h-FABP can help to detect myocardial damage at an early stage in patients with chest pain or dyspnoea, it appears unsuitable as a stand-alone test for ruling out AMI.
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Affiliation(s)
- P Mad
- Department of Emergency Medicine, Medical University Vienna, General Hospital, Waehringer Guertel 18-20, A-1090 Vienna, Austria
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Colli A, Josa M, Pomar JL, Mestres CA, Gherli T. Heart fatty acid binding protein in the diagnosis of myocardial infarction: where do we stand today? Cardiology 2006; 108:4-10. [PMID: 16960442 DOI: 10.1159/000095594] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2005] [Accepted: 06/24/2006] [Indexed: 11/19/2022]
Abstract
Heart fatty acid binding protein (hFABP) is a novel small cytosolic protein that is abundant in the heart. It is highly cardiac-specific (i.e. expressed primarily in cardiac tissue), but is also expressed at low concentrations in tissues outside the heart. After myocardial ischemic damage, hFABP can be detected in the blood as early as 1-3 h after onset of chest pain, with peak values reached at 6-8 h and plasma levels returning to normal within 24-30 h. hFABP's clinical diagnostic value is very limited in the presence of renal failure and skeletal muscle diseases as it is completely renally eliminated. In these conditions, the diagnosis of acute myocardial infarction (AMI) may be overestimated. The combination of initial hFABP release after symptom onset, rapid kidney clearance from the circulation and high cardiac specificity suggests great potential for clinical use. Serial measurements of hFABP in the first 24 h after onset of symptoms in AMI patients can: (a) identify patients who are susceptible to reperfusion strategies, (b) detect perioperative AMIs, (c) distinguish patients who reperfuse their infarct-related artery from those who do not, as early as 30 min after starting thrombolytic treatment, (d) detect re-infarction if it occurs within 10 h after symptom onset, and (e) permit an accurate estimation of myocardial infarct size providing important prognosis information.
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Affiliation(s)
- Andrea Colli
- Department of Cardiac Surgery, University of Parma, Parma, Italy.
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Tanaka T, Sohmiya KI, Kitaura Y, Takeshita H, Morita H, Ohkaru Y, Asayama K, Kimura H. Clinical Evaluation of Point‐of‐Care‐Testing of Heart‐Type Fatty Acid‐Binding Protein (H‐FABP) for the Diagnosis of Acute Myocardial Infarction. J Immunoassay Immunochem 2006; 27:225-38. [PMID: 16827225 DOI: 10.1080/15321810600734919] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The present study was carried out for clinical evaluation of point-of-care-testing (POCT) of heart-type fatty acid-binding protein (H-FABP), Rapicheck H-FABP, for the diagnosis of acute myocardial infarction (AMI), in comparison with conventional cardiac biochemical markers such as myoglobin, creatine kinase isoenzyme MB (CK-MB), and cardiac troponin T. Whole blood samples from patients with confirmed AMI (n = 53), patients with non-AMI cardiac diseases (n = 24), and patients with non-cardiac diseases with chest pain (n = 6) were used. When a test line appeared within 15 min after the addition of 150 microL of whole blood, it was designated to be positive for H-FABP. A control line indicates a proper use of the test. On the other hand, when no test line appeared, it was negative. In the superacute phase of AMI within 3 hours, the diagnostic sensitivity of H-FABP was 93.1%, which was the highest of the four markers compared here. The diagnostic specificity in the phase for H-FABP was 64.3%, while it was 100% with cardiac troponin T. The POCT of H-FABP is thought to be practical for the detection of cardiac damage and effective for the diagnosis of AMI in superacute phase within 3 hours and/or 6 hours.
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Azzazy HME, Pelsers MMAL, Christenson RH. Unbound Free Fatty Acids and Heart-Type Fatty Acid–Binding Protein: Diagnostic Assays and Clinical Applications. Clin Chem 2006; 52:19-29. [PMID: 16269514 DOI: 10.1373/clinchem.2005.056143] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractBackground: A biomarker that reliably detects myocardial ischemia in the absence of necrosis would be useful for initial identification of unstable angina patients and for differentiating patients with chest pain of an etiology other than coronary ischemia, and could provide clinical utility complementary to that of cardiac troponins, the established markers of necrosis. Unbound free fatty acids (FFAu) and their intracellular binding protein, heart-type fatty acid–binding protein (H-FABP), have been suggested to have clinical utility as indicators of cardiac ischemia and necrosis, respectively.Methods: We examined results of clinical assessments of FFAu and H-FABP as biomarkers of cardiac ischemia and necrosis. Data published on FFAu and H-FABP over the past 30 years were used as the basis for this review.Results: Although little clinical work has been done on FFAu since the initial reports, recent studies documented an association between increased serum FFAs and ventricular dysrhythmias and death in patients with acute myocardial infarction (AMI). Recent data suggest that serum FFAu concentrations increase well before markers of cardiac necrosis and are sensitive indicators of ischemia in AMI. H-FABP is abundant in cardiac muscle and is presumed to be involved in myocardial lipid homeostasis. Similar to myoglobin, plasma H-FABP increases within 3 h after AMI and returns to reference values within 12–24 h.Conclusions: FFAu may have a potential role in identifying patients with cardiac ischemia. H-FABP is useful for detecting cardiac injury in acute coronary syndromes and predicting recurrent cardiac events in acute coronary syndromes and in congestive heart failure patients. Assays are available for both markers that could facilitate further clinical investigations to assess their possible roles as markers of cardiac ischemia and/or necrosis.
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Affiliation(s)
- Hassan M E Azzazy
- Department of Chemistry and Science & Technology Research Center, School of Science and Engineering, The American University in Cairo, Cairo, Egypt.
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Pelsers MMAL, Glatz JFC. Detection of brain injury by fatty acid-binding proteins. Clin Chem Lab Med 2005; 43:802-9. [PMID: 16201888 DOI: 10.1515/cclm.2005.135] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The rapid detection of brain injury (neuronal damage in general) is an important parameter in the management of cerebrovascular accidents, especially in hemorrhagic and/or ischemic events. Two types of 15-kDa cytoplasmic fatty acid-binding proteins (FABPs), brain-type FABP and heart-type FABP, have recently been postulated as novel markers for brain injury detection. Here we review the possible roles of these FABPs as rapid diagnostic markers for the detection of brain injury due to cerebrovascular accident, trauma or neurodegenerative diseases. The occurrence of brain- and heart-type FABPs in segments of the human brain is also described. Although only limited amounts of data are available, brain- and heart-type FABPs show higher sensitivities and specificities than protein S100 and neuron specific enolase in the rapid detection of brain injury in stroke, trauma and neurodegenerative diseases.
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Affiliation(s)
- Maurice M A L Pelsers
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands.
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Kost GJ, Tran NK. Point-of-Care Testing and Cardiac Biomarkers: The Standard of Care and Vision for Chest Pain Centers. Cardiol Clin 2005; 23:467-90, vi. [PMID: 16278118 DOI: 10.1016/j.ccl.2005.08.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Point-of-care testing (POCT) is defined as testing at or near the site of patient care. POCTdecreases therapeutic turnaround time (TTAT), increases clinical efficiency, and improves medical and economic outcomes. TTAT represents the time from test ordering to patient treatment. POC technologies have become ubiquitous in the United States, and, therefore,so has the potential for speed, convenience, and satisfaction, strong advantages for physicians, nurses, and patients in chest pain centers. POCT is applied most beneficially through the collaborative teamwork of clinicians and laboratorians who use integrative strategies, performance maps, clinical algorithms, and care paths (critical pathways). For example, clinical investigators have shown that on-site integration of testing for cardiac injury markers (myoglobin, creatinine kinase myocardial band [CKMB],and cardiac troponin I [cTnI]) in accelerated diagnostic algorithms produces effective screening, less hospitalization, and substantial savings. Chest pain centers, which now total over 150 accredited in the United States, incorporate similar types of protocol-driven performance enhancements. This optimization allows chest pain centers to improve patient evaluation, treatment, survival, and discharge. This article focuses on cardiac biomarker POCT for chest pain centers and emergency medicine.
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Affiliation(s)
- Gerald J Kost
- Point-of-Care Testing Center for Teaching and Research, Department of Pathology and Laboratory Medicine,UCD Health System, School of Medicine, University of California, Davis, CA 95616, USA.
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Iida K, Nagao K, Uchiyama T, Kushiro T. Relationship between heart-type fatty acid-binding protein levels and the risk of death in patients with serious condition on arrival at the emergency department. Intern Med 2005; 44:1039-45. [PMID: 16293913 DOI: 10.2169/internalmedicine.44.1039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE Although heart-type fatty acid-binding protein (H-FABP) is a cardiac marker useful for early diagnosis of acute myocardial infarction (AMI), few data are available on its prognostic value. The objective of this study is to clarify the prognostic value of H-FABP in patients with a serious condition. METHODS AND PATIENTS We conducted a prospective study of 617 patients who presented to the emergency department with a serious condition. The H-FABP levels on arrival at the emergency department were divided into four groups using their quartiles. The endpoint was death from any causes in-hospital. RESULTS H-FABP ranged from 1.2 to 2,300 ng/ml, with a median of 19.9 ng/ml, a 25%-value of 6.7 ng/ml and 75%-value of 54.0 ng/ml. The unadjusted rate of the mortality increased progressively with increasing H-FABP quartile point (11% for quartile-I, 22% for quartile-II, 36% for quartile-III, and 38% for quartile-IV; p<0.001). After adjustment for age, gender, systolic blood pressure and the presence or absence of cardiovascular disease, H-FABP was the independent factor to predict the mortality. CONCLUSION H-FABP has proven to be an independent factor for prognosis in patients with a serious condition on arrival at the emergency department.
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Affiliation(s)
- Kiyoshi Iida
- Department of Cardiology, Nihon University School of Medicine, Tokyo
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Hiura M, Nakajima O, Mori T, Kitano K. Performance of a semi-quantitative whole blood test for human heart-type fatty acid-binding protein (H-FABP). Clin Biochem 2005; 38:948-50. [PMID: 16051209 DOI: 10.1016/j.clinbiochem.2005.06.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2004] [Revised: 05/30/2005] [Accepted: 06/13/2005] [Indexed: 11/27/2022]
Abstract
OBJECTIVES We evaluated the accuracy of visually reading the whole blood Rapicheck H-FABP panel test using the quantitative plasma H-FABP concentration as the reference. SUBJECTS AND METHODS Consecutive patients with chest pain (n = 237) who were suspected of having acute myocardial infarction were recruited. The appearance of an evident test line within 5 min was given a grade of +3 (strongly positive), appearance within 15 min +2 (moderately positive) and the appearance of a weak test line within 15 min +1 (weakly positive). RESULTS AND DISCUSSION The concordance rates were 91.8% for positive, 70.1% for negative and 80.2% for overall. Plasma H-FABP concentrations were above the cut-off value for 9.2% of negative (0) results. Fifty percent of weakly positive (+1) and 25.0% of moderately positive (+2) results had H-FABP concentrations lower than the cut-off value. All of the strongly positive (+3) were above the cut-off value. These results suggested that the false-positive and false-negative results of Rapicheck H-FABP were caused by over or underestimation in visual reading when the plasma H-FABP concentration was near the cut-off concentration. CONCLUSIONS Low accuracy of visual reading of Rapicheck H-FABP was due to poor estimation by manual reading around the cut-off value.
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Affiliation(s)
- Masahito Hiura
- Department of Cardiology, Hirakata-City Hospital, Kinnya Honmachi 2-14-1, Hirakata/Osaka 573-1013, Japan.
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Chan CPY, Wan TSM, Watkins KL, Pelsers MMAL, Van der Voort D, Tang FPW, Lam KHK, Mill J, Yuan Y, Lehmann M, Hempel A, Sanderson JE, Glatz JFC, Renneberg R. Rapid analysis of fatty acid-binding proteins with immunosensors and immunotests for early monitoring of tissue injury. Biosens Bioelectron 2005; 20:2566-80. [PMID: 15854826 DOI: 10.1016/j.bios.2004.09.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2004] [Revised: 09/22/2004] [Accepted: 09/22/2004] [Indexed: 10/26/2022]
Abstract
Fatty acid-binding protein (FABP) holds promise for early detection of tissue injury. This small protein (15kD) appears earlier in the blood than large proteins after cell damage. Combined its characteristics of high concentration tissue contents and low normal plasma values provide the possibility of a rapid rise above the respective reference values, and thus an early indication of the appearance of tissue injury. A general review was presented on the current status of different types of FABP for the detection of tissue injury in patients with myocardial injury, brain injury and also in athletes or horses with skeletal muscle injury. To take full advantage of the characteristics of the early marker FABP, rapid analysis is a crucial parameter. In this review, an overview of the development of immunoassay for the quantification of FABP in buffer, plasma or whole blood was outlined. The characteristics of different FABP immunosensors and immunotests were described. The feasibility of these immunoassays to be used in routine clinical practice and in emergency case was also discussed. Nowadays, the improved automated immunoassays (e.g. a microparticle-enhanced turbidimetric immunoassay), less time-consuming bedside immunosensors and immunotests (e.g. a one-step FABP lateral flow immunotest), are the main advance technology in point-of-care testing. With these point-of-care tests, the application of FABP as an early tissue injury marker has a great potential for many clinical purposes.
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Affiliation(s)
- Cangel P Y Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, PR China
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Pelsers MMAL, Hermens WT, Glatz JFC. Fatty acid-binding proteins as plasma markers of tissue injury. Clin Chim Acta 2005; 352:15-35. [PMID: 15653098 DOI: 10.1016/j.cccn.2004.09.001] [Citation(s) in RCA: 331] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2004] [Revised: 09/07/2004] [Accepted: 09/10/2004] [Indexed: 12/13/2022]
Abstract
BACKGROUND One of the novel and promising plasma markers for detection of tissue injury is the family of 15 kDa cytoplasmic fatty acid-binding proteins of which various tissue-specific types occur. AIMS AND OBJECTIVES The present status of heart-type fatty acid-binding protein (H-FABP) as a diagnostic and prognostic marker for acute and chronic cardiac injury, as well as the preliminary diagnostic use of other types of FABP for detecting injury in other organs, is reviewed. METHODS This review is based on an overview of the literature on clinical diagnostics of various forms of organ injury, and uses additional literature on physiological aspects relevant for the interpretation of plasma marker concentrations. RESULTS H-FABP not only proves to be an excellent early marker for cardiac injury in acute coronary syndromes, but also allows detection of minor myocardial injury in heart failure and unstable angina. Preliminary results indicate that sensitivity, rule-out power and prognostic value of H-FABP in cardiac injury surpass the performance of the standard early marker myoglobin. The liver only contains liver-type FABP (L-FABP), but co-expression of H-FABP and L-FABP occurs in the kidney. Similarly, intestinal-type FABP (I-FABP) and L-FABP are found in intestines, and brain-type FABP (B-FABP) and H-FABP occur in the brain. Preliminary but promising applications of these proteins have been demonstrated for liver rejection, viability selection of kidneys from non-heart-beating donors (NHBD), inflammatory and ischemic bowel disease, traumatic brain injury and in the prevention of muscle injury in trained athletes. CONCLUSIONS Further study of the diagnostic and prognostic use of various FABP types is warranted, but their clinical application will require further commercialization of automated and rapid assays.
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Affiliation(s)
- Maurice M A L Pelsers
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands.
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Ono T, Sugiyama K, Kuroda T, Kawamura M, Arao S, Nariuchi H. A Quantitative Immunochromatography Assay of Whole Blood Samples for Antigen-specific IgE—A New Method for Point of Care Testing for Allergens—. Allergol Int 2005. [DOI: 10.2332/allergolint.54.393] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Hazui H, Negoro N, Nishimoto M, Muraoka H, Murai M, Takeshita H, Ohishi Y, Fukumoto H, Morita H, Hanafusa T. Serum Heart-Type Fatty Acid-Binding Protein Concentration Positively Correlates With the Length of Aortic Dissection. Circ J 2005; 69:958-61. [PMID: 16041166 DOI: 10.1253/circj.69.958] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Patients with aortic dissection (AD) often demonstrate positive heart-type fatty acid-binding protein (H-FABP), but its significance is unclear. METHODS AND RESULTS In 63 of 64 consecutive AD patients, the serum H-FABP concentration was measured and the H-FABP positive rate calculated (cutoff value: 6.2 ng/ml) for each of following factors: (1) with or without dissection of the ascending aorta; and (2) a thrombosed false lumen; (3) length score; (4) presence of shock; (5) malperfusion of limbs; (6) ST elevation and/or depression on electrocardiogram; and (7) renal dysfunction. In total 36 AD patients had a positive H-FABP test. Statistically significant differences in the H-FABP positive rate were observed between those with and without ascending AD (76.7% vs 39.4%, p = 0.003), and in the length score (p < 0.001). Multivariate logistic regression test demonstrated that the most significant factor was the length score (odds ratio: 2.239 (95% confidence interval: 1.119-4.481), p = 0.023). Moreover, a significant correlation was observed between length score and absolute H-FABP value (r = 0.420, p = 0.001). CONCLUSIONS In patients with AD, an increased serum H-FABP concentration is caused by the protein being released not only from the cardiac muscle but also from skeletal muscle, or possibly the aortic wall. Physicians using H-FABP for detection of myocardial injury need to be aware that patients with a long or ascending AD will show an elevation of H-FABP.
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Affiliation(s)
- Hiroshi Hazui
- Department of Emergency Medicine, Osaka Mishima Emergency and Critical Care Center, Osaka, Japan.
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Pelsers MMAL, Hanhoff T, Van der Voort D, Arts B, Peters M, Ponds R, Honig A, Rudzinski W, Spener F, de Kruijk JR, Twijnstra A, Hermens WT, Menheere PPCA, Glatz JFC. Brain- and Heart-Type Fatty Acid-Binding Proteins in the Brain: Tissue Distribution and Clinical Utility. Clin Chem 2004; 50:1568-75. [PMID: 15217991 DOI: 10.1373/clinchem.2003.030361] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractBackground: Detection of brain injury by serum markers is not a standard procedure in clinical practice, although several proteins, such as S100B, neuron-specific enolase (NSE), myelin basic protein, and glial fibrillary acidic protein, show promising results. We investigated the tissue distribution of brain- and heart-type fatty acid-binding proteins (B-FABP and H-FABP) in segments of the human brain and the potential of either protein to serve as plasma marker for diagnosis of brain injury.Methods: B-FABP and H-FABP were measured immunochemically in autopsy samples of the brain (n = 6) and in serum samples from (a) patients with mild traumatic brain injury (MTBI; n = 130) and (b) depressed patients undergoing bilateral electroconvulsive therapy (ECT; n = 14). The protein markers S100B and NSE were measured for comparison. Reference values of B-FABP and H-FABP were established in healthy individuals (n = 92).Results: The frontal, temporal, and occipital lobes, the striatum, the pons, and the cerebellum had different tissue concentrations of B-FABP and of H-FABP. B-FABP ranged from 0.8 μg/g wet weight in striatum tissue to 3.1 μg/g in frontal lobe. H-FABP was markedly higher, ranging from 16.2 μg/g wet weight in cerebellum tissue to 39.5 μg/g in pons. No B-FABP was detected in serum from healthy donors. H-FABP serum reference value was 6 μg/L. In the MTBI study, serum B-FABP was increased in 68% and H-FABP in 70% of patients compared with S100B (increased in 45%) and NSE (increased in 51% of patients). In ECT, serum B-FABP was increased in 6% of all samples (2 of 14 patients), whereas H-FABP was above its upper reference limit (6 μg/L) in 17% of all samples (8 of 14 patients), and S100B was above its upper reference limit (0.3 μg/L) in 0.4% of all samples.Conclusions: B-FABP and H-FABP patterns differ among brain tissues, with the highest concentrations in the frontal lobe and pons, respectively. However, in each part of the brain, the H-FABP concentration was at least 10 times higher than that of B-FABP. Patient studies indicate that B-FABP and H-FABP are more sensitive markers for minor brain injury than the currently used markers S100B and NSE.
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Affiliation(s)
- Maurice M A L Pelsers
- Department of Molecular Genetics, Cardiovascular Research Institute Maastricht, Maastricht University, The Netherlands.
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Pelsers MMAL, Namiot Z, Kisielewski W, Namiot A, Januszkiewicz M, Hermens WT, Glatz JFC. Intestinal-type and liver-type fatty acid-binding protein in the intestine. Tissue distribution and clinical utility. Clin Biochem 2004; 36:529-35. [PMID: 14563446 DOI: 10.1016/s0009-9120(03)00096-1] [Citation(s) in RCA: 251] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVES Intestinal-type fatty acid-binding protein (I-FABP) has been proposed as plasma marker for the detection of acute intestinal injury. However, intestinal mucosa also expresses liver-type FABP (L-FABP). We have investigated the tissue distribution of I-FABP and L-FABP in segments of the human intestine along the duodenal to colonal axis and the potential of both proteins to serve as plasma marker for the diagnosis of intestinal injury. DESIGN AND METHODS I-FABP and L-FABP were measured with specific immunoassays in autopsy samples of the intestine (duodenum, jejunum, ileum and colon) of 23 subjects and in plasma samples from patients (n = 51) with intestinal and/or hepatic disease. Plasma reference values were established in normal healthy individuals (n = 92). RESULTS The I-FABP tissue contents in duodenum, jejunum, ileum, proximal colon and distal colon amounted to 2.22, 4.79, 1.04, 0.27 and 0.25 mug/g ww, respectively. L-FABP tissue contents were markedly higher, amounting to 124 and 198 mug/g ww in duodenum and jejunum, and to 58, 26 and 44 mug/g ww in ileum, proximal colon and distal colon, respectively. Elevated plasma levels of both I-FABP and L-FABP were found in patients suffering from intestinal diseases, while only L-FABP was increased in cases of purely hepatocellular injury. CONCLUSIONS I-FABP and L-FABP show a similar pattern of tissue distribution along the duodenal to colonal axis with highest tissue contents found in the jejunum but in each intestinal segment a >40-fold higher content of L-FABP than of I-FABP. Accordingly, besides I-FABP, also L-FABP is a useful plasma marker for the detection of intestinal injury, especially in patients undergoing intestinal surgery.
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Affiliation(s)
- Maurice M A L Pelsers
- Department of Molecular Genetics, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands.
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Hasegawa T, Yoshimura N, Oka S, Ootaki Y, Toyoda Y, Yamaguchi M. Evaluation of heart fatty acid–binding protein as a rapid indicator for assessment of myocardial damage in pediatric cardiac surgery. J Thorac Cardiovasc Surg 2004; 127:1697-702. [PMID: 15173726 DOI: 10.1016/j.jtcvs.2004.02.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Perioperative myocardial damage is a major determinant of postoperative cardiac dysfunction for congenital heart disease. Heart fatty acid-binding protein is reported to be a rapid marker of perioperative myocardial damage that peaks earlier than creatine kinase isoenzyme MB or cardiac troponin T in adults. The objective of this study was to assess the suitability of using serum concentrations of heart fatty acid-binding protein for evaluation of perioperative myocardial damage in pediatric cardiac surgery. METHODS After institutional review board approval and informed consent, 100 children undergoing open procedures for congenital heart disease were prospectively enrolled in the study. Mean age at operation was 4.9 +/- 0.4 years. Serum concentrations of heart fatty acid-binding protein, creatine kinase isoenzyme MB, and cardiac troponin T were measured serially before operation and at 0, 1, 2, 3, and 6 hours after aortic declamping. Relationships between serum peak level of heart fatty acid-binding protein and intraoperative and postoperative clinical variables were evaluated. RESULTS Serum heart fatty acid-binding protein reached its peak level at 1 hour after declamping in 95 patients (95%), which was significantly earlier (P <.01) than serum creatine kinase isoenzyme MB or cardiac troponin T. In addition, serum heart fatty acid-binding protein level immediately after declamping correlated strongly with serum peak heart fatty acid-binding protein level (r = 0.91, P <.01). The serum peak level of heart fatty acid-binding protein correlated with those of creatine kinase isoenzyme MB (r = 0.77, P <.01) and cardiac troponin T (r = 0.80, P <.01). In the forward stepwise multiple regression analysis, age (P <.0001), aortic crossclamp time (P <.0001), the presence of a ventriculotomy (P <.001), and the lowest hematocrit level during cardiopulmonary bypass (P <.05) were significant intraoperative variables that influenced the release of heart fatty acid-binding protein. There were significant relationships between serum peak heart fatty acid-binding protein level and postoperative inotropic support, duration of intubation, and intensive care unit stay (P <.01 for each). CONCLUSIONS Heart fatty acid-binding protein is a rapid marker for assessment of myocardial damage and clinical outcome in pediatric cardiac surgery. In particular, serum heart fatty acid-binding protein level immediately after aortic declamping may be a potentially useful prognostic indicator of myocardial damage as well as clinical outcome in pediatric cardiac surgery.
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Affiliation(s)
- Tomomi Hasegawa
- Department of Cardiothoracic Surgery, Kobe Children's Hospital, Kobe, Japan
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Seino Y, Tomita Y, Takano T, Ohbayashi K. Office Cardiologists Cooperative Study on Whole Blood Rapid Panel Tests in Patients With Suspicious Acute Myocardial Infarction. Circ J 2004; 68:144-8. [PMID: 14745150 DOI: 10.1253/circj.68.144] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND The whole blood rapid troponin T test, used to determine the early diagnosis of acute myocardial infarction (AMI), is effective only for 3-4 h after onset. METHODS AND RESULTS The present office cardiologists cooperative study compared the diagnostic efficacy of a newly developed whole blood rapid panel test for heart-type fatty acid-binding protein (H-FABP) with that of the rapid troponin T test in 129 consecutive patients with suspicious AMI according to certain time-frames from onset to presentation. Thirty-one patients (24.0%) had a final diagnosis of AMI. The respective sensitivities of the rapid H-FABP and troponin T tests were 100% vs 50% (p<0.05) for patients presenting within 3 h of onset; 75% vs 0% for those between 3 and 6 h; 100% vs 60% for those between 6 and 12 h; and 100% vs 100% for those presenting later than 12 h. The respective specificities were 63% vs 96.3% (p<0.05); 93.8% vs 93.8%; 72.7% vs 100%; and 75.0% vs 87.5%. Negative predictive value was 100% vs 86.7%; 93.8% vs 78.9%; 100% vs 84.6%; and 100% vs 100%, respectively. Patients with non-AMI myocardial damage associated with unstable angina or severe heart failure showed positive H-FABP test results and blunted the specificity. CONCLUSIONS When using the novel rapid H-FABP test, cardiac emergency triage to exclude non-AMI patients should be effectively organized within 3 h of onset.
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Affiliation(s)
- Yoshihiko Seino
- Office of Tokyo ROC Study, The First Department of Internal Medicine, Nippon Medical School, Japan.
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van der Voort D, Pelsers MMAL, Korf J, Hermens WT, Glatz JFC. Development of a displacement immunoassay for human heart-type fatty acid-binding protein in plasma: the basic conditions. Biosens Bioelectron 2003; 19:465-71. [PMID: 14623471 DOI: 10.1016/s0956-5663(03)00205-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
To risk-stratify patients with chest pain who are admitted to emergency rooms and for whom initial evaluation is not conclusive, the use of cardiac markers has become a standard procedure. A recently introduced early plasma marker for acute myocardial infarction (AMI) is the 14.5-kDa cytoplasmic heart-type fatty acid-binding protein (FABP). To fully exploit its early release from injured myocardium, a rapid method for repeated measurements or continuous monitoring of FABP in plasma is desirable. Such an on-line method could be an immunosensor based on displacement. The aim of the present study was to further investigate the principles underlying the displacement assay of FABP, both in buffer and in plasma. Batches of sepharose-bound FABP were loaded with an antibody-horseradish peroxidase (HRP) conjugate (anti-FABP). Continuous measurement of FABP was mimicked by repeated addition of FABP containing solutions followed by several washing steps. In the presence of free FABP the antibody-HRP complex dissociated and was subsequently quantified. Significant displacement in the presence of free FABP was observed in both buffer and human plasma. Anti-FABP could be intermittently displaced in the same batch, for at least 9 h, and the displacement was concentration-dependent. These results show the feasibility of a sensor based on the displacement principle to be used for the diagnosis of AMI in emergency medicine.
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Affiliation(s)
- D van der Voort
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands.
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Pelsers MM, Namiot Z, Kisielewski W, Namiot A, Januszkiewicz M, Hermens WT, Glatz JF. Intestinal-type and liver-type fatty acid-binding protein in the intestine. Tissue distribution and clinical utility. Clin Biochem 2003. [DOI: 10.1016/s0009-9120%2803%2900096-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Seino Y, Ogata KI, Takano T, Ishii JI, Hishida H, Morita H, Takeshita H, Takagi Y, Sugiyama H, Tanaka T, Kitaura Y. Use of a whole blood rapid panel test for heart-type fatty acid-binding protein in patients with acute chest pain: comparison with rapid troponin T and myoglobin tests. Am J Med 2003; 115:185-90. [PMID: 12935824 DOI: 10.1016/s0002-9343(03)00325-5] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE We sought to determine the clinical utility of a newly developed qualitative test to measure heart-type fatty acid-binding protein levels in blood for the early identification of myocardial infarction. METHODS We measured heart-type fatty acid-binding protein levels in 371 consecutive patients with acute chest pain and suspected myocardial infarction, and compared the performance of this test with those of troponin T and myoglobin tests. Levels of heart-type fatty acid-binding protein >or=6.2 ng/mL were considered as positive results. RESULTS A final diagnosis of acute myocardial infarction was made in 181 patients (49%). Of the 68 patients who presented within 2 hours of the onset of symptoms, 37 (54%) had a final diagnosis of myocardial infarction. The sensitivity of the rapid heart-type fatty acid-binding protein test was 89% (33/37), significantly higher than for troponin T (22% [8/37]; P<0.001) and myoglobin (38% [14/37]; P<0.001). However, the specificity of troponin T (94% [29/31]) was significantly better than for heart-type fatty acid-binding protein (52% [16/31]; P= 0.002) within 2 hours. The area under the receiver operating characteristic curve for heart-type fatty acid-binding protein levels was greater than that for myoglobin (0.72 vs. 0.61, P = 0.01) among patients who presented within 2 hours. CONCLUSION A novel whole blood rapid heart-type fatty acid-binding protein test can be useful in the early evaluation of patients who present with acute chest pain.
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Affiliation(s)
- Yoshihiko Seino
- First Department of Medicine and Coronary Care Unit, Nippon Medical School, Tokyo, Japan.
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Rogers BA, Newby LK. New biomarkers in the risk stratification of patients with suspected acute myocardial infarction. Curr Cardiol Rep 2002; 4:341-7. [PMID: 12052274 DOI: 10.1007/s11886-002-0071-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The acute coronary syndromes (ACS) remain a diagnostic and prognostic challenge for today's physician. Over the past decade, studies have identified several serologic biomarkers to aid the clinician in assessing risk and predicting outcomes in ACS. Still others are being identified that show promise for increasing the accuracy with which this risk is assessed. However, further research remains necessary to identify the perfect cardiac biomarker or combination of markers and to define their roles in clinical management of ACS patients.
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Affiliation(s)
- Bret A Rogers
- Duke Clinical Research Institute, PO Box 17969, Durham, NC 27715-7969, USA
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