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Sang L, Wu C, Chen H, Liu W, Huang D, Yang X, Guo X, Cui R, Wang N, Zhang R, Yue Y, Guo H, Wang M, Miao Y, Wang Q, Zhang S. Commutability evaluation of candidate reference materials and ERM-DA470k/IFCC for immunoglobulin M using two international approaches. J Clin Lab Anal 2023; 37:e24955. [PMID: 37571860 PMCID: PMC10492453 DOI: 10.1002/jcla.24955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 07/02/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND This study aimed to assess the commutability of frozen pooled human serum (PHS), high concentration of Immunoglobulin M (IgM) pure diluted materials (HPDM), commercialized pure materials (CPM), and dilutions of ERM-DA470k/IFCC in IgM detection using the CLSI and IFCC approaches, to support standardization or harmonization of IgM measurement. METHODS Twenty-four serum samples, relevant reference materials (PHS, HPDM, CPM), and different ERM-DA470k/IFCC dilutions were analyzed in triplicate using six routine methods. The commutability of the relevant reference materials was carried out following CLSI EP30-A and IFCC bias analysis. RESULTS According to the CLSI approach, low, medium, and high concentrations of PHS, HPDM, and CPM were commutable on 10, 13, 15, 13, and 8 of 15 assay combinations, respectively. Using the IFCC approach, low, medium, and high concentrations of PHS, HPDM, and CPM were commutable on 10, 11, 9, 15, and 10 of 15 assay combinations, respectively. The ERM-DA470k/IFCC dilutions with D-PBS and RPMI-1640 Medium were commutable on 13 of 15 assay combinations according to CLSI and were commutable on all 15 assay combinations using IFCC approach. CONCLUSIONS High concentration of PHS were commutable on all six detection systems using the CLSI approach. Low and medium concentration of PHS showed unsatisfied commutability. HPDM, not CPM have good commutability, has the potential to become reference materials. ERM-DA470k/IFCC diluted with different medium showed different commutability.
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Affiliation(s)
- Lu Sang
- Department of Clinical LaboratoryBeijing Huairou HospitalBeijingChina
| | - Chunying Wu
- Department of Clinical Laboratory, Beijing Luhe HospitalCapital Medical UniversityBeijingChina
| | - Huijuan Chen
- Department of Clinical LaboratoryBeijing Huairou HospitalBeijingChina
| | - Wei Liu
- Department of Clinical Laboratory, Beijing Luhe HospitalCapital Medical UniversityBeijingChina
| | - Dawei Huang
- Department of Clinical LaboratoryBeijing Longfu HospitalBeijingChina
| | - Xi Yang
- Department of Clinical LaboratoryBeijing Huairou HospitalBeijingChina
| | - Xinrui Guo
- Department of Respiratory and Critical Care MedicineChina‐Japan Friendship HospitalBeijingChina
| | - Ruifang Cui
- Department of Clinical LaboratoryHeping Hospital Affiliated to Changzhi Medical CollegeChangzhiChina
| | - Ning Wang
- Department of Clinical Laboratory, Beijing Chaoyang HospitalThe Third Clinical Medical College of Capital Medical UniversityBeijingChina
| | - Rui Zhang
- Department of Clinical Laboratory, Beijing Chaoyang Hospital, Beijing Center for Clinical LaboratoriesThe Third Clinical Medical College of Capital Medical UniversityBeijingChina
| | - Yuhong Yue
- Department of Clinical Laboratory, Beijing Chaoyang Hospital, Beijing Center for Clinical LaboratoriesThe Third Clinical Medical College of Capital Medical UniversityBeijingChina
| | - Hong Guo
- Department of Clinical LaboratoryHeji Hospital Affiliated to Changzhi Medical CollegeChangzhiChina
| | - Minghao Wang
- Department of Clinical Laboratory, Beijing Chaoyang HospitalThe Third Clinical Medical College of Capital Medical UniversityBeijingChina
| | - Yutong Miao
- Department of Clinical Laboratory, Beijing Chaoyang HospitalThe Third Clinical Medical College of Capital Medical UniversityBeijingChina
| | - Qingtao Wang
- Department of Clinical Laboratory, Beijing Chaoyang Hospital, Beijing Center for Clinical LaboratoriesThe Third Clinical Medical College of Capital Medical UniversityBeijingChina
| | - Shunli Zhang
- Department of Clinical Laboratory, Beijing Chaoyang Hospital, Beijing Center for Clinical LaboratoriesThe Third Clinical Medical College of Capital Medical UniversityBeijingChina
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Liu Z, Jin L, Zhou W, Zhang C. The spectrum of plasma renin activity and hypertension diseases: Utility, outlook, and suggestions. J Clin Lab Anal 2022; 36:e24738. [DOI: 10.1002/jcla.24738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 09/03/2022] [Accepted: 10/03/2022] [Indexed: 11/07/2022] Open
Affiliation(s)
- Zhenni Liu
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, Chinese Academy of Medical Sciences, and Peking Union Medical College Beijing China
| | - Lizi Jin
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, Chinese Academy of Medical Sciences, and Peking Union Medical College Beijing China
| | - Weiyan Zhou
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine Beijing China
| | - Chuanbao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, Chinese Academy of Medical Sciences, and Peking Union Medical College Beijing China
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Long Q, Qi T, Liu Z, Wang J, Zhao H, Zeng J, Zhang T, Yan Y, Zhou W, Zhang J, Chen W, Zhang C. The consistency of aminotransferase analysis in China: a comparison of six mainstream aminotransferase routine methods and recalibration using human pooled serum preparations supplemented with human recombinant aminotransferases. Scandinavian Journal of Clinical and Laboratory Investigation 2022; 82:58-67. [DOI: 10.1080/00365513.2022.2025895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Qichen Long
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, People's Republic of China
| | - Tianqi Qi
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, People's Republic of China
| | - Zhenni Liu
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, People's Republic of China
| | - Jing Wang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, People's Republic of China
| | - Haijian Zhao
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, People's Republic of China
| | - Jie Zeng
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, People's Republic of China
| | - Tianjiao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, People's Republic of China
| | - Ying Yan
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, People's Republic of China
| | - Weiyan Zhou
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, People's Republic of China
| | - Jiangtao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, People's Republic of China
| | - Wenxiang Chen
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, People's Republic of China
| | - Chuanbao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing Engineering Research Center of Laboratory Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, People's Republic of China
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Yin M, Nie Y, Liu H, Liu L, Tang L, Dong Y, Hu C, Wang H. Development of a europium nanoparticles lateral flow immunoassay for NGAL detection in urine and diagnosis of acute kidney injury. BMC Nephrol 2022; 23:30. [PMID: 35031018 PMCID: PMC8758895 DOI: 10.1186/s12882-021-02493-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 08/02/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND AKI is related to severe adverse outcomes and mortality with Coronavirus Disease 2019 (COVID-19) patients, that early diagnosed and intervened is imperative. Neutrophil gelatinase-associated lipocalin (NGAL) is one of the most promising biomarkers for detection of acute kidney injury (AKI), but current detection methods are inadequacy, so more rapid, convenient and accuracy methods are needed to detect NGAL for early diagnosis of AKI. Herein, we established a rapid, reliable and accuracy lateral flow immunoassay (LFIA) based on europium nanoparticles (EU-NPS) for the detection of NGAL in human urine specimens. METHODS A double-antibody sandwich immunofluorescent assay using europium doped nanoparticles was employed and the NGAL monoclonal antibodies (MAbs) conjugate as labels were generated by optimizing electric fusion parameters. Eighty-three urine samples were used to evaluate the clinical application efficiency of this method. RESULTS The quantitative detection range of NGAL in AKI was 1-3000 ng/mL, and the detection sensitization was 0.36 ng/mL. The coefficient of variation (CV) of intra-assay and inter-assay were 2.57-4.98 % and 4.11-7.83 %, respectively. Meanwhile, the correlation coefficient between europium nanoparticles-based lateral fluorescence immunoassays (EU-NPS-LFIA) and ARCHITECT analyzer was significant (R2 = 0.9829, n = 83, p < 0.01). CONCLUSIONS Thus, a faster and easier operation quantitative assay of NGAL for AKI has been established, which is very important and meaningful to diagnose the early AKI, suggesting that the assay can provide an early warning of final outcome of disease.
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Affiliation(s)
- Moli Yin
- Jilin Collaborative Innovation Center for Antibody Engineering, Jilin Medical University, 132013, Jilin, PR China
| | - Yuanwang Nie
- Academy of laboratory, Jilin Medical University, 132013, Jilin, PR China
| | - Hao Liu
- Academy of laboratory, Jilin Medical University, 132013, Jilin, PR China
| | - Lei Liu
- Jilin Collaborative Innovation Center for Antibody Engineering, Jilin Medical University, 132013, Jilin, PR China
| | - Lu Tang
- Jilin Collaborative Innovation Center for Antibody Engineering, Jilin Medical University, 132013, Jilin, PR China
| | - Yuan Dong
- Academy of laboratory, Jilin Medical University, 132013, Jilin, PR China
| | - Chuanmin Hu
- Jilin Collaborative Innovation Center for Antibody Engineering, Jilin Medical University, 132013, Jilin, PR China
| | - Huiyan Wang
- Jilin Collaborative Innovation Center for Antibody Engineering, Jilin Medical University, 132013, Jilin, PR China.
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Tong Q, Zhang S, Zuo C. EQA/PT scheme to improve the equivalence of enzymatic results between mutual recognition laboratories in Beijing. J Clin Lab Anal 2021; 35:e23814. [PMID: 33948986 PMCID: PMC8183905 DOI: 10.1002/jcla.23814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/19/2021] [Accepted: 04/22/2021] [Indexed: 11/25/2022] Open
Abstract
Background To utilize the external quality assessment (EQA)/proficiency testing (PT) scheme to evaluate the equivalence of different clinical enzymatic measuring systems in Beijing. Methods The Beijing Center for Clinical Laboratory (BCCL) distributed three investigation samples to mutual recognition clinical laboratories in Beijing including alanine aminotransferase (ALT), aspartate aminotransferase (AST), γ‐glutamyltransferase (GGT), creatine kinase (CK), and lactate dehydrogenase (LDH). These samples were derived from serum pools with values assigned by the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) enzymatic reference measurement procedures (RMPs). Each laboratory performed duplicate tests of the samples. Then, the samples at level 1 were used to recalibrate individual measuring systems for repeating the tests. BCCL collected data for evaluation of their analytical quality. Results Before recalibration, the biases of ALT and AST tests were not traceable to the IFCC RMPs, and the bias pass rates of GGT, CK, and LDH tests were only 51.2%, 55.7%, and 48.6% respectively. After recalibration, the pass rates of ALT, AST, GGT, CK, and LDH increased to 95.1%, 82.9%, 95.1%, 97.1%, and 70.0% respectively. The EQA/PT also showed that after recalibration, more than 95% of laboratories met the optimum level specifications of the biological variation for ALT, AST, GGT, and CK tests and the desirable for LDH tests. Conclusion The enzymatic tests in Beijing need to be further standardized by category 1 or 2 EQA/PT scheme for mutual recognition between clinical laboratories. The criteria of biological variation are more relevant for determining the equivalence of clinical enzymatic tests.
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Affiliation(s)
- Qing Tong
- Beijing Center for Clinical Laboratories, Beijing Chao-Yang Hospital affiliated to Capital Medical University, Beijing, China
| | - Shunli Zhang
- Department of Clinical Laboratory, Beijing Chao-Yang Hospital affiliated to Capital Medical University, Beijing, China
| | - Chang Zuo
- Department of Clinical Laboratory, Beijing Chao-Yang Hospital affiliated to Capital Medical University, Beijing, China
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Zhang R, Wang Q. Comparability of four clinical laboratory measurement methods for GGT and commutability of candidate reference materials. J Clin Lab Anal 2020; 34:e23557. [PMID: 32914473 PMCID: PMC7755790 DOI: 10.1002/jcla.23557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 03/01/2020] [Accepted: 03/03/2020] [Indexed: 12/30/2022] Open
Abstract
Background This study was conducted to evaluate the progress in the standardization of the gamma‐glutamyl transferase (GGT) to achieve metrological traceability of routine in vitro diagnosis (IVD) medical devices. Methods We collected 25 single fresh frozen serum samples for GGT analysis. Candidate reference materials (RMs), calibrators, internal quality controls (IQC), and external quality assessment (EQA) materials from the National Center for Clinical Laboratory (NCCL), Beijing Center for Clinical Laboratory (BCCL), and College of American Pathologists (CAP) were randomly added to these serum samples. A total of 42 samples were examined using IFCC reference method and four different IVD medical devices to perform the comparability and commutability study. Results The four IVD medical devices achieved trueness assessment within the measurement range. Linear analysis showed the agreement of Siemens ADVIA 2400, Hitachi 7600‐020/BioSino, Beckman AU 5800, and Roche Cobas 501 with the reference method. These assay pairs were comparable at the medical decision levels. The GGT in‐house candidate RMs, and Beckmann and Roche calibrators were all within the limits of the 95% prediction intervals, the commutability of BioSino calibrators was indeterminate, and some internal and external quality controls were not commutable for comparisons of certain IVD medical devices vs the reference method. Conclusions By comparing with the reference method, we found that performance of GGT conventional measurement systems to be traceable to the higher order references was improved. The commutable materials for calibration and trueness controls of routine methods were significant to promote the standardization of GGT analysis.
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Affiliation(s)
- Rui Zhang
- Department of Clinical Laboratory, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
| | - Qingtao Wang
- Department of Clinical Laboratory, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China.,Beijing Center for Clinical Laboratories, Beijing, China
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Chen Y, Zhang L, Liu Y, Tan S, Qu R, Wu Z, Zhou Y, Huang J. Preparation of PGA-PAE-Micelles for Enhanced Antitumor Efficacy of Cisplatin. ACS APPLIED MATERIALS & INTERFACES 2018; 10:25006-25016. [PMID: 29781607 DOI: 10.1021/acsami.8b04259] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Poly-γ-l-glutamic acid (PGA) is an outstanding drug carrier candidate owning to its excellent biodegradability and biocompatibility. The PGA carrier may shield toxic drugs from the body and enable the delivery of poorly soluble or unstable drugs and thereby minimize the side effects and improve drug efficacy. However, the limitation of PGA as a drug carrier is low drug loading efficiency (DLE), which is usually below 30%. In this study, we reported a chemical modification method using l-phenylalanine ethyl ester (PAE). PGA-PAE construct was amphiphilic, which could form micelles in aqueous solution. Cisplatin (CDDP), a commonly used chemotherapy drug whose side effect is well-known, was used as a model molecule to test the drug-loading efficiency of PGA-PAE. In this paper, two sizes of CDDP-loaded PGA-PAE micelles (M(Pt)-1 and M(Pt)-2) were prepared, the average diameter of M(Pt)-1 was 106 ± 6 nm and M(Pt)-2 was 210 ± 9 nm. The DLE of M(Pt)-1 and M(Pt)-2 was 52.8 ± 2.2 and 55.8 ± 1.2%, respectively. Both exhibited excellent biocompatibility, stability, and drug-retaining capability in physiological condition. The in vitro accumulative drug-releasing profile, IC50 for different tumor cell lines HeLa, A549, and HCCC9810, and in vivo pharmacokinetics were similar between these two micelles; however, M(Pt)-1 showed higher tumor tissue retention and longer efficient cancer cell internalization time (up to 20 d). Our results suggested PGA-PAE micelle carriers reduced the toxicity of CDDP and its size at around 100 nm was the better for CDDP high-efficacy.
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Affiliation(s)
- Yazhou Chen
- School of Life Science , East China Normal University , Shanghai 200241 , PR China
| | - Li Zhang
- School of Life Science , East China Normal University , Shanghai 200241 , PR China
| | - Yingjie Liu
- School of Life Science , East China Normal University , Shanghai 200241 , PR China
| | - Shiming Tan
- School of Life Science , East China Normal University , Shanghai 200241 , PR China
| | - Ruidan Qu
- School of Life Science , East China Normal University , Shanghai 200241 , PR China
| | - Zirong Wu
- School of Life Science , East China Normal University , Shanghai 200241 , PR China
| | - Yue Zhou
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering , Shanghai Jiao Tong University , Shanghai 200030 , PR China
| | - Jing Huang
- School of Life Science , East China Normal University , Shanghai 200241 , PR China
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