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Lee H, Ryu JH, Choi AR, Kim Y, Oh EJ. Inter-laboratory comparison of semiquantitative allergen-specific Immunoglobulin E test: 7 years of experience in Korea. J Clin Lab Anal 2022; 36:e24222. [PMID: 34994992 PMCID: PMC8842192 DOI: 10.1002/jcla.24222] [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: 08/22/2021] [Revised: 11/28/2021] [Accepted: 12/23/2021] [Indexed: 11/11/2022] Open
Abstract
INTRODUCTION Multiple allergen simultaneous test (MAST) is widely used as a screening tool for allergic diseases and has the advantage of providing specific IgE (sIgE) results for various allergens in semiquantitative class. We have continuously conducted external quality assessment (EQA) since 2012 for clinical laboratories performing MAST using AdvanSure allergy screen test (LG CHEM, Korea). This study provides an account of the EQA experience. METHODS Samples were prepared using pooled sera collected from patients with suspected allergic disease and sent to each laboratory twice a year. Each round included 4-6 serum samples with sIgE for 10-20 inhaled or food allergens. The acceptable class value was the most frequently reported MAST class ±1 titer that exceeded 80% of the total laboratory results. RESULTS The average number of participating laboratories was 76 (49-90) and the average response rate was 97.3% during the entire survey period. The acceptable rates were consistently high at 97.7% ± 3.7%. Of the total 537 trials, 18 trials (3.4%) were regarded as nonconsensus results, in which acceptable answers did not exceed 80%. For unacceptable results, the false-negative rate (1.5% ± 2.8%) was higher than the false-positive rate (0.8% ± 2.7%) (p < 0.001). MAST class results were correlated with quantitative IgE results by ImmunoCAP (Spearman's correlation coefficient of 0.682 (p < 0.001) and gamma index of 0.777 (p < 0.001). CONCLUSION Although EQA for MAST showed a high level of acceptable answer, some allergen assays require harmonization. Continuous performance of systematic EQA is needed to improve the accuracy of sIgE assays and quality control in clinical laboratories.
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Affiliation(s)
- Hyeyoung Lee
- Department of Laboratory Medicine, College of Medicine, International St. Mary's Hospital, Catholic Kwandong University, Incheon, Korea
| | - Ji Hyeong Ryu
- Department of Laboratory Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Ae-Ran Choi
- Department of Laboratory Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Yonggoo Kim
- Department of Laboratory Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Eun-Jee Oh
- Department of Laboratory Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
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Han JY, Lee H, Chung JL, Kim YJ, Kim JY, Tchah H. Multiple Allergen Simultaneous Test-Immunoblot Assay for Immunoglobulin E Detection in Patients with Isolated Allergic Conjunctivitis. J Clin Med 2021; 10:jcm10050960. [PMID: 33804507 PMCID: PMC7957652 DOI: 10.3390/jcm10050960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 02/15/2021] [Accepted: 02/19/2021] [Indexed: 11/22/2022] Open
Abstract
We aimed to investigate the immunoglobulin E (IgE) detection rate and allergen patterns in patients with isolated allergic conjunctivitis using the multiple allergen simultaneous test (MAST)-immunoblot assay. A total of 120 patients with allergic conjunctivitis and no associated rhinitis, asthma, or dermatitis underwent the MAST-immunoblot assay to measure serum total IgE (TIgE) and serum specific IgE (SIgE) against 57 allergens. Patients were classified into subgroups based on the season when the eye symptoms were exacerbated, and TIgE and SIgE positivity. Differences between sex and age groups were also analyzed. Of the 120 patients, 57.5% (69 patients) and 69.2% (83 patients) were positive for TIgE (≥100 IU/mL) and SIgE (≥0.7 IU/mL), respectively. The allergens that most frequently triggered sensitization in the study population were Dermatophagoides farinae, Dermatophagoides pteronyssinus, Tyrophagus putrescentiae, Alternaria, and house dust. House dust mites, such as D. farinae and D. pteronyssinus, showed the highest detection rates regardless of the season. Men had a higher positive rate for TIgE than women, whereas a higher rate of sensitization, detected as SIgE positivity, was seen in younger patients. In conclusion, MAST-immunoblot assay can detect sensitizing allergens in patients with isolated allergic conjunctivitis.
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Affiliation(s)
- Jung Yeob Han
- Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (J.Y.H.); (H.L.)
| | - Hun Lee
- Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (J.Y.H.); (H.L.)
| | - Jae Lim Chung
- Eyejun Ophthalmic Clinic, Seoul 06232, Korea; (J.L.C.); (Y.J.K.)
| | - Young Jun Kim
- Eyejun Ophthalmic Clinic, Seoul 06232, Korea; (J.L.C.); (Y.J.K.)
| | - Jae Yong Kim
- Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (J.Y.H.); (H.L.)
- Correspondence: (J.Y.K.); (H.T.)
| | - Hungwon Tchah
- Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (J.Y.H.); (H.L.)
- Correspondence: (J.Y.K.); (H.T.)
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Hu H, Huang Z, Luo W, Zou X, Chen H, Liao C, Sun B. Allergen diagnosis strategy: An experimental application of different methods in Guangzhou, Southern China. Sci Prog 2021; 104:36850421997277. [PMID: 33711912 PMCID: PMC10454961 DOI: 10.1177/0036850421997277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Different methods have different diagnostic value under diverse clinical conditions. This study was conducted to analyze the clinical practical value of different assays in different situations and to establish the concept of an allergen diagnosis strategy.This study used Phadia CAP, Advan Sure (AdvS), Euroline Camera (ELC), and Allergy Lateral Flow Assay (ALFA) kits to detect allergen specific immunoglobulin E (sIgE) in the sera from 30 allergic asthma patients, with Phadia CAP as the gold standard.This study found high sensitivity for Dermatophagoides pteronyssinus in AdvS (92.6%), ELC (88.9%), and ALFA (85.2%), but poor sensitivity for F. domesticus in all three assays. Furthermore, the AdvS, ELC, and ALFA assays could detect 20, 21, and 8 allergens in one panel, respectively. The combination of the results showed that 93.3% and 46.7% of patients tested positive for ≥5 and ≥10 types of allergens, respectively. All patients who were tested positive for the Marine fish mixture were positive for both Shrimp and Crab. Similarly, patients who were tested positive for Chicken also tested positive for Pork. Optimal scale analysis showed a strong connection between Peanut, Soybean, Wheat, Japanese Hop, Western ragweed, and Oak allergens (Cronbach's α = 91.1%).The ELC assay was more suitable for use in pollen-rich areas, whereas the ALFA assay was easy to establish in areas with poor medical conditions. An allergen diagnosis strategy needs to be considered for use in clinical practice.
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Affiliation(s)
| | | | - Wenting Luo
- State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiangwei Zou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Hao Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Chenxi Liao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Baoqing Sun
- State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
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Wilkołek P, Szczepanik M, Sitkowski W, Rodzik B, Pluta M, Taszkun I, Gołyński M. Evaluation of multiple allergen simultaneous (sIgE) testing compared to intradermal testing in the etiological diagnosis of atopic dermatitis in horses. J Vet Sci 2020; 20:e60. [PMID: 31775187 PMCID: PMC6883192 DOI: 10.4142/jvs.2019.20.e60] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/06/2019] [Accepted: 09/04/2019] [Indexed: 11/20/2022] Open
Abstract
Although intradermal testing (IDT) is commonly used in the etiological diagnosis of allergies, in vitro testing for specific IgE (sIgE) is an attractive alternative. Currently, new laboratory techniques in veterinary allergological practice, including multiple allergen simultaneous tests (MASTs), gradually supersede in vivo tests. Both, serological (sIgE) and IDTs in fourteen atopic Malopolski horses were performed. Correlation and agreement between test results were evaluated. Receiver operating characteristic analysis showed that sIgE to Acarus siro had the best diagnostic performance (Area under the ROC curve [AUC] = 0.969), followed by Dermatophagoides pteronyssinus (AUC = 0.844), Dermatophagoides farinae (AUC = 0.813) and Tyrophagus putrescentiae (AUC = 0.803). A significant positive correlation between IDT and MAST was found for A. siro (rS = 0.870; p = 0.00005), and D. farinae (rS = 0.657; p = 0.011). There was significant moderate agreement for 2 of 5 allergens, A. siro (κ = 0.569) and D. farinae (κ = 0.485) in semiquantitative assessment and significant fair to substantial agreement for 3 of 5 allergens, D. pteronyssinus (κ = 0.689), A. siro (κ = 0.569), D. farinae (κ = 0.432) in dichotomic assessment. Sensitivity ranged from 44% to 89%, depending on the allergen, while specificity was significantly higher for all allergens in MAST (60%–100%); the mean accuracy was 73% (manufacturer cut-off) and 77.4% (optimal cut-off) based on the Youden index. Compared with IDT, serological MAST showed good detection performance for 60% allergen sIgE in dichotomic assessment with substantial diagnostic capability, but careful clinical interpretation is needed for some allergens.
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Affiliation(s)
- Piotr Wilkołek
- Sub-Department of Clinical Diagnostics and Veterinary Dermatology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-612 Lublin, Poland.
| | - Marcin Szczepanik
- Sub-Department of Clinical Diagnostics and Veterinary Dermatology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-612 Lublin, Poland
| | - Wiesław Sitkowski
- Sub-Department of Clinical Diagnostics and Veterinary Dermatology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-612 Lublin, Poland
| | - Beata Rodzik
- Institute of Mathematics, Marie Curie-Skłodowska University, 20-031 Lublin, Poland
| | - Michał Pluta
- Equine Breeding and Management Unit, Department of Biology and Animal Breeding, University of Life Sciences in Lublin, 20-950 Lublin, Poland
| | - Iwona Taszkun
- Sub-Department of Clinical Diagnostics and Veterinary Dermatology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-612 Lublin, Poland
| | - Marcin Gołyński
- Nicolaus Copernicus University in Torun, Faculty of Biological and Veterinary Sciences, 87-100 Torun, Poland
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Wilkołek P, Szczepanik M, Rodzik B, Sitkowski W, Pluta M, Taszkun I, Gołyński M. A Comparison of Multiple Allergen Simultaneous Tests Using Allergen-Specific IgE Concentration and Intradermal Skin Tests in Atopic Horses With Pollen Allergy. J Equine Vet Sci 2020; 90:102992. [PMID: 32534770 DOI: 10.1016/j.jevs.2020.102992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/10/2020] [Accepted: 03/10/2020] [Indexed: 10/24/2022]
Abstract
Intradermal tests (IDTs) and measurement of specific immunoglobulin E class (sIgE) levels in sera are the most common and reliable methods used in allergological clinical practice. The purpose of this study was to explore the sensitization of pollen allergy in atopic horses with pollinosis and to assess the diagnostic value of the multiple allergen simultaneous tests (MASTs) compared with that of the IDT. Twenty-one Malopolski horses with typical skin hypersensitivity symptoms during pollen seasons were enrolled. Intradermal tests were performed, and allergen-specific IgE concentrations in sera were measured using a monoclonal anti-IgE antibody to pollens of grass, weeds, trees, and cultivated plants. The highest sensitization rate was for Secale cereale (IDT, 76%; MAST, 66.7%), grass (IDT, 71%; MAST, 57%), and Brassica napus (IDT, 52.4%; MAST, 57%). Receiver operating characteristic (ROC) curve analysis and the area under the ROC curve (AUC) showed that Betula spp., Alnus spp., and Corylus spp. had the highest AUC at 0.854, followed by Secale cereale (AUC = 0.796), Plantago lanceolata (AUC = 0.726), Brassica napus (AUC = 0.704), and a grass allergen mixture (AUC = 0.695). The mean AUC for all allergens was 0.712 (0.604-0.867). The overall sensitivity of the sIgE plant horse panel was 78% (range, 68%-90%), the specificity was 86.3% (range, 64%-100%), and the accuracy was 79% (range, 64%-87%). Statistical kappa (κ) agreement between the MAST and IDT was reached for tree (κ = 0.767), rye (κ = 0.687), colza (κ = 0.671), and grass (κ = 0.664) pollen. The MAST showed a favorable agreement with the IDT and can be used for the detection of sIgE in atopic horses with pollinosis.
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Affiliation(s)
- Piotr Wilkołek
- Sub-Department of Diagnostics and Veterinary Dermatology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612 Lublin, Poland.
| | - Marcin Szczepanik
- Sub-Department of Diagnostics and Veterinary Dermatology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612 Lublin, Poland
| | - Beata Rodzik
- Institute of Mathematics, Maria Curie-Skłodowska University, Lublin, Poland
| | - Wiesław Sitkowski
- Sub-Department of Diagnostics and Veterinary Dermatology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612 Lublin, Poland
| | - Michał Pluta
- Equine Breeding and Management Unit, Department of Biology and Animal Breeding,University of Life Sciences in Lublin, Lublin, Poland
| | - Iwona Taszkun
- Sub-Department of Diagnostics and Veterinary Dermatology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612 Lublin, Poland
| | - Marcin Gołyński
- Nicolaus Copernicus University in Torun, Faculty of Biological and Veterinary Sciences, Torun, Poland
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Roethlisberger S, Karoui O, Mapelli D, Audran R, Aubert V, Girard L, Rebeaud F, Leimgruber A, Buss G, Duc J, Langner-Viviani F, Maerki I, Spertini F. Novel Nanofluidic IgE Assay versus a Reference Method: A Real-World Comparison. Int Arch Allergy Immunol 2019; 180:28-36. [DOI: 10.1159/000500830] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/07/2019] [Indexed: 11/19/2022] Open
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Park DJ, Lee J, Kim SY, Kwon HJ, Lee HK, Kim Y. Evaluation of AdvanSure AlloScreen Max Panel With 92 Different Allergens for Detecting Allergen-Specific IgE. Am J Clin Pathol 2019; 151:628-637. [PMID: 30984971 DOI: 10.1093/ajcp/aqz023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES The objective of this study was to examine the performance of AdvanSure AlloScreen Max with 92 different allergens compared to Polycheck Allergy and ImmunoCAP. The relationship of serum IgE concentration with the number and the highest class/level of positive allergen-specific IgEs was also examined. METHODS A total of 406 serum samples were included in this study. Discrepant cases between AdvanSure AlloScreen Max and Polycheck Allergy underwent ImmunoCAP testing for allergen-specific IgE. RESULTS Total agreement of the two multiple allergen simultaneous tests (MAST) was 92.5%. Compared to ImmunoCAP, total agreement rate was higher with AdvanSure AlloScreen Max (60.8%) than that with Polycheck Allergy (39.2%). Serum IgE concentration showed a significant and positive correlation with the number and the highest class/level of positive allergen-specific IgEs. CONCLUSIONS A MAST assay panel containing as many allergens as possible would be more helpful in the allergen screening for patients with high serum IgE concentration.
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Affiliation(s)
- Dong Jin Park
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul
| | - Jehoon Lee
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul
| | - Soo-Young Kim
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul
| | - Hi Jeong Kwon
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul
| | - Hae Kyung Lee
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul
| | - Yeongsic Kim
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul
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Park SC, Hwang CS, Chung HJ, Purev M, Al Sharhan SS, Cho HJ, Yoon JH, Kim CH. Geographic and demographic variations of inhalant allergen sensitization in Koreans and non-Koreans. Allergol Int 2019; 68:68-76. [PMID: 30104152 DOI: 10.1016/j.alit.2018.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/21/2018] [Accepted: 07/01/2018] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND To diagnose and treat respiratory allergic diseases, it is important to identify the specific allergens involved. Many differences exist between common inhalant allergens depending on the residential environment and demographic factors. This study aimed to compare common inhalant allergens between Koreans and non-Koreans according to their residential region, age, and sex. METHODS This study evaluated 15,334 individuals who underwent serum tests for multiple allergen-specific immunoglobulin E at a tertiary academic medical center between January 2010 and December 2016. The individuals included 14,786 Koreans and 548 non-Koreans. The AdvanSure™ Allostation assay (LG Life Science, Korea) was used to test for 33 inhalant allergens. RESULTS The house dust mite (HDM) was the most common allergen in both Koreans and non-Koreans, although the proportion of individuals with HDM sensitization was greater among Koreans. High sensitization rates for various pollen types were detected among Koreans in Gangwon region, whereas Japanese cedar pollen was unique among Koreans in Jeju region. Grass pollen and animal dander were relatively common among individuals from the Americas, whereas weed and grass pollen accounted for the 10 most common allergens for individuals from Central Asia. The total sensitization rate, sensitization to HDM, and sensitization to animal dander peaked among adolescents and young adults, then subsequently decreased with age. CONCLUSIONS This large-scale study demonstrates that various regional and age-related differences exist in the allergen sensitization rates of Koreans and non-Koreans. These data could be useful for development of avoidance measures, immunotherapy for causative allergens, and policymaking regarding allergic diseases.
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Park KH, Lee J, Sim DW, Lee SC. Comparison of Singleplex Specific IgE Detection Immunoassays: ImmunoCAP Phadia 250 and Immulite 2000 3gAllergy. Ann Lab Med 2018; 38:23-31. [PMID: 29071815 PMCID: PMC5700143 DOI: 10.3343/alm.2018.38.1.23] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/17/2017] [Accepted: 09/15/2017] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND The identification of clinically meaningful specific immunoglobulin E (sIgE) is important for the diagnosis and management of allergic diseases. Various in vitro sIgE detection methods are available worldwide. Depending on the number of antigens that can be tested simultaneously, there are two representative methods: singleplex and multiplex. Singleplex sIgE detection is mainly provided by Thermo Fisher (ImmunoCAP) and Siemens (Immulite). This study aimed to compare the diagnostic agreement of two singleplex sIgE detection assays. METHODS Sera from 209 Korean patients with allergic disease were used to compare the ImmunoCAP and Immulite assays with respect to the following allergens: inhalant allergens (Dermatophagoides farinae, cat and dog dander, oak, rye grass, mugwort, Alternaria, German cockroach) and food allergens (hen's egg white, cow's milk, wheat, peanut, soybean, and shrimp). Data from 902 paired comparison tests were included for comparisons. Qualitative, semi-quantitative, and quantitative comparisons were performed using statistical analyses. RESULTS In qualitative comparisons, the positivity and negativity agreements ranged from 75% (wheat, shrimp) to 96% (Alternaria). Class consistency (classes 0-6) was well matched. Spearman's rank correlation coefficients for all allergens except shrimp were over 0.7. In quantitative comparisons, all allergens excluding shrimp showed >0.7 intra-class correlation coefficients. CONCLUSIONS The ImmunoCAP and Immulite systems showed similar performances. However, clinicians should consider fundamental methodological differences between the assays.
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Affiliation(s)
- Kyung Hee Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea.
| | - Jongsun Lee
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Da Woon Sim
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Division of Allergy, Asthma, and Clinical Immunology, Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Sang Chul Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
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Park KH, Lee J, Lee SC, Son YW, Sim DW, Lee JH, Park JW. Comparison of the ImmunoCAP Assay and AdvanSure™ AlloScreen Advanced Multiplex Specific IgE Detection Assay. Yonsei Med J 2017; 58:786-792. [PMID: 28540992 PMCID: PMC5447110 DOI: 10.3349/ymj.2017.58.4.786] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 04/07/2017] [Accepted: 04/07/2017] [Indexed: 11/27/2022] Open
Abstract
PURPOSE The AdvanSure™ AlloScreen assay is an advanced multiplex test that allows for simultaneous detection of specific IgE (sIgE) against multiple allergens. For precise identification of causative allergens in allergic patients, we compared this new multiplex sIgE assay with the ImmunoCAP assay, which is currently the gold-standard method for sIgE detection. MATERIALS AND METHODS Serum samples from 218 Korean allergic disease patients were used to compare the ImmunoCAP and AlloScreen assays with respect to the following 13 allergens: Dermatophagoides pteronyssinus, Dermatophagoides farinae, cat and dog dander, Alternaria, birch, oak, ragweed, mugwort, rye grass, and food allergens (egg white, cow's milk, peanuts). RESULTS A total of 957 paired tests using the 13 allergens were compared. The total agreement ratio ranged from 0.74 (oak) to 0.97 (Alternaria). With respect to class association analyses, the gamma index ranged from 0.819 (rye grass) to 0.990 (Alternaria). The intra-class correlation coefficients for house dust mites, cat and dog dander, Alternaria, birch, ragweed, egg white, cow's milk, and peanut sIgE titers were >0.8. CONCLUSION The AlloScreen and ImmunoCAP assays exhibited similar diagnostic performance. However, due to methodological differences between the two systems, careful interpretation of their results is needed in clinical applications.
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Affiliation(s)
- Kyung Hee Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jongsun Lee
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Chul Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Young Woong Son
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Da Woon Sim
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Hyun Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Won Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea.
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Proteins derived from Prunus armeniaca kernel are possible to cause Immunoglobulin E reactivity in human sera. Mol Cell Toxicol 2017. [DOI: 10.1007/s13273-017-0023-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Feyzkhanova G, Voloshin S, Smoldovskaya O, Arefieva A, Filippova M, Barsky V, Pavlushkina L, Butvilovskaya V, Tikhonov A, Reznikov Y, Rubina A. Development of a microarray-based method for allergen-specific IgE and IgG4 detection. Clin Proteomics 2017; 14:1. [PMID: 28077935 PMCID: PMC5223422 DOI: 10.1186/s12014-016-9136-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 12/13/2016] [Indexed: 01/09/2023] Open
Abstract
Background sIgE and sIgG4 detection is necessary for more accurate and effective type I hypersensitivity diagnostics and the estimation of disease development. Typically, the analyses of these antibodies are performed separately with the help of various specialized systems. The aim of this study was to develop a microarray-based method for the simultaneous quantitative detection of sIgE and sIgG4 to the most common allergens in a single sample. Methods A quantitative method for the simultaneous detection of sIgE and sIgG4 was developed based on the technology of hydrogel microchips previously designed at Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS). The microarray contained gel pads with immobilized allergens and gel pads that allow for the obtaining of sIgE and sIgG4 internal calibration curves for each allergen during the assay. The possibility of the simultaneous detection of sIgE and sIgG4 was developed using the corresponding Cy5 and Cy3 fluorescent dyes. Results The multiplex immunoassay method using hydrogel microarrays developed in this study allowed the quantitative detection of sIgE and sIgG4 to 31 allergens from different groups in a single assay. A comparison of the microarray with the existing plate-based analogues (i.e., ALLERG-O-LIQ and sIgG4 ELISA) was performed by analysing 152 blood serum samples and by evaluating Pearson correlation coefficients, ROC analysis, and Passing-Bablok linear regression results. Conclusion The implementation of this method in allergy diagnostics will provide the possibility of simultaneously performing primary patient screening and obtaining additional information concerning the severity of the allergies and the choice of an appropriate therapy.
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Affiliation(s)
- Guzel Feyzkhanova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS), Vavilova str., 32, Moscow, Russia 119991
| | - Sergei Voloshin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS), Vavilova str., 32, Moscow, Russia 119991
| | - Olga Smoldovskaya
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS), Vavilova str., 32, Moscow, Russia 119991
| | - Alla Arefieva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS), Vavilova str., 32, Moscow, Russia 119991
| | - Marina Filippova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS), Vavilova str., 32, Moscow, Russia 119991
| | - Viktor Barsky
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS), Vavilova str., 32, Moscow, Russia 119991
| | - Ludmila Pavlushkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS), Vavilova str., 32, Moscow, Russia 119991
| | - Veronika Butvilovskaya
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS), Vavilova str., 32, Moscow, Russia 119991
| | - Alexei Tikhonov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS), Vavilova str., 32, Moscow, Russia 119991
| | - Yuri Reznikov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS), Vavilova str., 32, Moscow, Russia 119991
| | - Alla Rubina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS), Vavilova str., 32, Moscow, Russia 119991
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Kim YH, Yang HJ, Choi JH, Kim DK, Yoo Y, Lee B, Kim MA, Kim BS, Kim WY, Kim JH, Park Y, Park SY, Bae WY, Song K, Yang MS, Lee SM, Lee YM, Lee HJ, Cho JH, Jee HM, Koh YI. Clinical diagnostic guidelines for allergic rhinitis: diagnosis. JOURNAL OF THE KOREAN MEDICAL ASSOCIATION 2017. [DOI: 10.5124/jkma.2017.60.1.81] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Young Hyo Kim
- Department of Otorhinolaryngology, Inha University College of Medicine, Incheon, Korea
| | - Hyeon-Jong Yang
- Department of Pediatrics, Soonchunhyang University College of Medicine, Seoul, Korea
- SCH Biomedical Informatics Research Unit, Seoul, Korea
| | - Jeong-Hee Choi
- Department of Pulmonology and Allergy, Hallym University College of Medicine, Chuncheon, Korea
| | - Dong-Kyu Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Chuncheon, Korea
| | - Young Yoo
- Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
- Allergy Immunology Center, Korea University, Seoul, Korea
| | - Bora Lee
- Department of Biostatistics, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Mi-Ae Kim
- Department of Pulmonology, Allergy and Critical Care Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Bong-Seong Kim
- Department of Pediatrics, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea
| | | | - Jeong Hee Kim
- Department of Pediatrics, Inha University College of Medicine, Incheon, Korea
| | - Yang Park
- Department of Pediatrics, Sanbon Hospital, Wonkwang University College of Medicine, Gunpo, Korea
| | | | - Woo Yong Bae
- Department of Otorhinolaryngology, Head and Neck Surgery, Dong-A University College of Medicine, Busan, Korea
| | - Keejae Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Catholic Kwandong Universtiy College of Medicine, Incheon, Korea
| | - Min-Suk Yang
- Department of Internal Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - Sang Min Lee
- Division of Pulmonology and Allergy, Department of Internal Medicine, Gachon University College of Medicine, Incheon, Korea
| | | | | | | | - Hye Mi Jee
- Department of Pediatrics, CHA University School of Medicine, Seongnam, Korea
| | - Young-Il Koh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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Kim KH, Park JY, Lee IS, Lim KJ, Jung WS, Jang HJ. Isolated protein of Astragalus membranaceus acts as an allergen by binding human immunoglobulin E on human sera. BIOCHIP JOURNAL 2016. [DOI: 10.1007/s13206-016-0301-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Lee MK, Kwon IH, Kim HS, Kim HY, Cho EB, Bae Y, Park GH, Park EJ, Kim KH, Kim KJ. Avoidance Behavior against Positive Allergens Detected with a Multiple Allergen Simultaneous Test Immunoblot Assay in Patients with Urticaria: Factors Associated with Avoidance Success/Failure. Ann Dermatol 2016; 28:80-5. [PMID: 26848222 PMCID: PMC4737840 DOI: 10.5021/ad.2016.28.1.80] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 12/21/2015] [Accepted: 01/04/2016] [Indexed: 11/29/2022] Open
Abstract
Background Avoidance behavior against positive allergens detected by using multiple allergen simultaneous test (MAST)-immunoblot assay in patients with urticaria has been rarely reported. Objective We aimed to assess the avoidance behavior of patients with urticaria against positive allergens detected with a MAST. Methods One hundred and one urticaria patients who showed positivity to at least one allergen on a MAST completed a questionnaire regarding their test results. The avoidance behavior of the patients was evaluated, and relevant determining factors of avoidance success/failure were statistically assessed. Results We detected 144 different data (n=51, food allergens; n=17, pollen allergens; and n=76, aeroallergens) from 101 patients with urticaria. The avoidance failure rates were 33.3% for food allergens, 70.6% for pollen allergens, and 30.3% for aeroallergens. The pollen group showed a significantly higher avoidance failure rate than the food and aeroallergen groups (p<0.05). The patients with higher educational levels or more severe urticaria tended to successfully avoid allergens (p<0.05). The monthly household income level and patients' reliability to the test showed borderline correlations (p=0.057 and p=0.075, respectively). Conclusion We believe that the results of this study could be helpful in predicting avoidance success or failure against allergens in patients with urticaria when clinicians conduct allergen-specific immunoglobulin E tests.
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Affiliation(s)
- Min Kyung Lee
- Department of Dermatology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | | | - Han Su Kim
- Department of Dermatology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Heung Yeol Kim
- Department of Dermatology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Eun Byul Cho
- Department of Dermatology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Youin Bae
- Department of Dermatology, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Gyeong Hun Park
- Department of Dermatology, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Eun Joo Park
- Department of Dermatology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Kwang Ho Kim
- Department of Dermatology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Kwang Joong Kim
- Department of Dermatology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
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Rim JH, Park BG, Kim JH, Kim HS. Comparison and clinical utility evaluation of four multiple allergen simultaneous tests including two newly introduced fully automated analyzers. Pract Lab Med 2016; 4:50-61. [PMID: 28856193 PMCID: PMC5574498 DOI: 10.1016/j.plabm.2016.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 12/16/2015] [Accepted: 01/19/2016] [Indexed: 11/29/2022] Open
Abstract
Background We compared the diagnostic performances of two newly introduced fully automated multiple allergen simultaneous tests (MAST) analyzers with two conventional MAST assays. Methods The serum samples from a total of 53 and 104 patients were tested for food panels and inhalant panels, respectively, in four analyzers including AdvanSure AlloScreen (LG Life Science, Korea), AdvanSure Allostation Smart II (LG Life Science), PROTIA Allergy-Q (ProteomeTech, Korea), and RIDA Allergy Screen (R-Biopharm, Germany). We compared not only the total agreement percentages but also positive propensities among four analyzers. Results Evaluation of AdvanSure Allostation Smart II as upgraded version of AdvanSure AlloScreen revealed good concordance with total agreement percentages of 93.0% and 92.2% in food and inhalant panel, respectively. Comparisons of AdvanSure Allostation Smart II or PROTIA Allergy-Q with RIDA Allergy Screen also showed good concordance performance with positive propensities of two new analyzers for common allergens (Dermatophagoides farina and Dermatophagoides pteronyssinus). The changes of cut-off level resulted in various total agreement percentage fluctuations among allergens by different analyzers, although current cut-off level of class 2 appeared to be generally suitable. Conclusions AdvanSure Allostation Smart II and PROTIA Allergy-Q presented favorable agreement performances with RIDA Allergy Screen, although positive propensities were noticed in common allergens. Two new multiple allergen simultaneous tests (MAST) analyzers are evaluated. AdvanSure Smart II and PROTIA presented favorable agreement performance with RIDA. Positive propensity of new assays for D. farina and D. pteronyssinus was noticed. The changes of cut-off level resulted in total agreement percentage fluctuations.
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Affiliation(s)
- John Hoon Rim
- Department of Laboratory Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Medicine, Yonsei University Graduate School of Medicine, Seoul, Republic of Korea
| | - Borae G Park
- Department of Laboratory Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jeong-Ho Kim
- Department of Laboratory Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyon-Suk Kim
- Department of Laboratory Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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Hwang H, Kwon J, Kim JY, Lee HH, Oh CE, Choi GS. The RIDA Allergy Screen Versus the Phadiatop Test in 430 Consecutive Patient Specimens. Lab Med 2016; 47:20-9. [DOI: 10.1093/labmed/lmv002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Lee JH, Park HJ, Park KH, Jeong KY, Park JW. Performance of the PROTIA™ Allergy-Q® System in the Detection of Allergen-specific IgE: A Comparison With the ImmunoCAP® System. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2015; 7:565-72. [PMID: 26333703 PMCID: PMC4605929 DOI: 10.4168/aair.2015.7.6.565] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 03/11/2015] [Indexed: 12/22/2022]
Abstract
PURPOSE The PROTIA™ Allergy-Q® enzyme immunoassay (EIA) is a recently developed screening assay for specific immunoglobulin E (sIgE) for multiple allergens. The ImmunoCAP® fluorescent EIA (FEIA) system is the most widely used method for sIgE detection. In this study, we evaluated the performance of the Allergy-Q® system compared to the ImmunoCAP® system. METHODS We compared the 2 systems using sera from 260 Korean allergy patients suffering from asthma (26.5%), allergic rhinitis (42.3%), atopic dermatitis (67.7%), and food allergy (18.1%). We compared sIgE-measurement results for 7 inhalant allergens, 5 food allergens, and 4 microorganism allergens. RESULTS Overall, 1,799 paired assay results were analyzed. Except mugwort and alternaria, most of the allergen-sIgE results showed intra-class correlation coefficients of >0.5. Inter-assay class associations were reliable for most allergens (gamma=0.858-0.987, P<0.001). Passing-Bablok regression analysis showed multiple differences in intercept and slope. The inter-method concordance was moderate to substantial for most allergens (κ=0.713-0.898, P<0.001). CONCLUSIONS The PROTIA™ Allergy-Q® EIA system exhibited good detection performance compared to the ImmunoCAP® FEIA system in Korean allergic patients. However, because of methodological differences between the 2 assays, careful clinical implication is required for the interpretation of Allergy-Q® EIA results.
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Affiliation(s)
- Jae Hyun Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Jung Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Hee Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Kyoung Yong Jeong
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Won Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea.
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Cho JH, Suh JD, Kim JK, Hong SC, Park IH, Lee HM. Correlation between Skin-prick Testing, Individual Specific IgE Tests, and a Multiallergen IgE Assay for Allergy Detection in Patients with Chronic Rhinitis. Am J Rhinol Allergy 2014; 28:388-91. [DOI: 10.2500/ajra.2014.28.4074] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background Allergy test results can differ based on the method used. The most common tests include skin-prick testing (SPT) and in vitro tests to detect allergen-specific IgE. This study was designed to assess allergy test results using SPT, individual specific IgE tests, and a multiallergen IgE assay (multiple allergen simultaneous test) in patients with chronic rhinitis and controls. Methods One hundred forty total patients were prospectively enrolled in the study, including 100 patients with chronic rhinitis and 40 control patients without atopy. All eligible patients underwent SPT, serum analysis using individual specific IgE test, and multiple allergen simultaneous test against 10 common allergens. Allergy test results were then compared to identify correlation and interest agreement. Results There was an 81–97% agreement between SPT and individual specific IgE test in allergen detection and an 80–98% agreement between SPT and multiple allergen simultaneous test. Individual specific IgE test and multiple allergen simultaneous test allergy detection prevalence was generally similar to SPT in patients with chronic rhinitis. All control patients had negative SPT (0/40), but low positive results were found with both individual specific IgE test (5–12.5%) and multiple allergen simultaneous test (2.5–7.5%) to some allergens, especially cockroach, Dermatophagoides farina, and ragweed. Agreement and correlation between individual specific IgE test and multiple allergen simultaneous test were good to excellent for a majority of tested allergens. Conclusion This study shows good agreement and correlation between SPT with individual specific IgE test and multiple allergen simultaneous test on a majority of the tested allergens for patients with chronic rhinitis. Comparing the two in vitro tests, individual specific IgE test agrees with SPT better than multiple allergen simultaneous test.
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Affiliation(s)
- Jae Hoon Cho
- Department of Otorhinolaryngology–Head and Neck Surgery, College of Medicine, Konkuk University, Seoul, Korea
| | - Jeffrey D. Suh
- Department of Head and Neck Surgery, University of California–Los Angeles School of Medicine, Los Angeles, California
| | - Jin Kook Kim
- Department of Otorhinolaryngology–Head and Neck Surgery, College of Medicine, Konkuk University, Seoul, Korea
| | - Seok-Chan Hong
- Department of Otorhinolaryngology–Head and Neck Surgery, College of Medicine, Konkuk University, Seoul, Korea
| | - Il-Ho Park
- Department of Otorhinolaryngology–Head and Neck Surgery, College of Medicine, Korea University, Seoul, Korea
| | - Heung-Man Lee
- Department of Otorhinolaryngology–Head and Neck Surgery, College of Medicine, Korea University, Seoul, Korea
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Choi JS, Roh JY, Lee JR. Clinical availability of component-resolved diagnosis using microarray technology in atopic dermatitis. Ann Dermatol 2014; 26:437-46. [PMID: 25143671 PMCID: PMC4135097 DOI: 10.5021/ad.2014.26.4.437] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 07/01/2013] [Accepted: 07/19/2013] [Indexed: 11/21/2022] Open
Abstract
Background Various allergens play a role in the elicitation or exacerbation of eczematous skin lesions in atopic dermatitis (AD), and much research effort has been focused on improving diagnostic tests to identify causative allergens. Objective The purpose of this study was to evaluate the diagnostic effectiveness of a newly introduced microarray-based specific immunoglobulin E detection assay, ImmunoCAP ISAC, for use in AD patients. Methods The serum samples of 25 AD patients were tested by using ISAC and a multiple allergen simultaneous test-enzyme immunoassay (MAST-EIA). In addition, 10 of the 25 patients underwent skin prick testing (SPT). The positive reaction rates to allergens in each test and the agreements, sensitivities, and specificities of ISAC and MAST-EIA were evaluated versus the SPT results. Results For ISAC versus SPT, the overall results were as follows: sensitivity, 90.0%; specificity, 98.2%; positive predictive value (PPV), 90.0%; and negative predictive value (NPV), 98.2%. The total agreement and κ value for ISAC versus SPT were 96.9% and 0.882, respectively. For MAST-EIA versus SPT, the sensitivity was 80.0%, specificity 92.7%, PPV 66.7%, and NPV 96.2%. The total agreement and κ value for MAST-EIA versus SPT were 90.8% and 0.672, respectively. The overall agreement between the ISAC and MAST-EIA results was 88%. Conclusion The ISAC results in AD correlated well with the SPT results, and compared favorably to the MAST-EIA results. This study demonstrates the potential of ISAC as a convenient allergic diagnostic method in AD patients.
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Affiliation(s)
- Joon-Seok Choi
- Department of Dermatology, Gil Medical Center, Graduate School of Medicine, Gachon University, Incheon, Korea
| | - Joo-Young Roh
- Department of Dermatology, Gil Medical Center, Graduate School of Medicine, Gachon University, Incheon, Korea
| | - Jong-Rok Lee
- Department of Dermatology, Gil Medical Center, Graduate School of Medicine, Gachon University, Incheon, Korea
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Park HJ, Lee JH, Park KH, Ann HW, Jin MN, Choi SY, Lee YW, Hong CS, Park JW. A nationwide survey of inhalant allergens sensitization and levels of indoor major allergens in Korea. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2014; 6:222-7. [PMID: 24843797 PMCID: PMC4021240 DOI: 10.4168/aair.2014.6.3.222] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 09/02/2013] [Accepted: 09/03/2013] [Indexed: 11/20/2022]
Abstract
PURPOSE The higher prevalence of respiratory allergic disease may be due to increased exposure to inhalation allergens. We conducted a survey of allergic diseases in autumn and winter with detection of major indoor allergens in major cities in Korea. METHODS We enrolled 110 subjects from the fourth Korea National Health and Nutrition Examination Survey with stratified, cluster, and systematic sampling procedures. All participants answered a health questionnaire as well as underwent a skin prick test (SPT) and ImmunoCAP for 11 indoor major allergens. We also measured the levels of 5 major allergens (Der f 1, Der p 1, Can f 1, Bla g 1, and Asp f 1) in fine indoor dust from the houses of 60 subjects with a 2-site ELISA. RESULTS The prevalence of allergic rhinitis and asthma were 25.5% and 7.3%, respectively. The most common sensitized allergens identified by SPT and ImmunoCAP were Dermatophagoides farinae (40.9%, 36.8%), followed by cockroach (23.6%, 19.5%), mugwort (13.6%, 22.9%), oak (9.1%, 22.9%), Japanese hop (9.1%, 8.6%), and dog dander (8.2%, 6.9%). There was a modest discrepancy between SPT and ImmunoCAP. Der f 1 and Der p 1 were detected in 91.7% and 45.0% of the enrolled houses, respectively. Der f 1 indicated high concentrations in all specific provinces in Korea; however, Der p 1 measured high only in the south. Dog dander allergens were present in 71.7% of houses; however, Bla g 1 was present in only 11.7% of houses and Asp f 1 was not detected in any houses. CONCLUSIONS The most important inhalant allergens in Korea are house dust mites followed by cockroach, mugwort, oak, Japanese hop, and dog dander in indoor environment, in which The dominant species of house dust mites were different according to region.
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Affiliation(s)
- Hye Jung Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jae-Hyun Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Hee Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Hea Won Ann
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Moo-Nyun Jin
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Soo-Young Choi
- Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Yong-Won Lee
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Chein-Soo Hong
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jung-Won Park
- Division of Allergy and Immunology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
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Crameri R, Garbani M, Rhyner C, Huitema C. Fungi: the neglected allergenic sources. Allergy 2014; 69:176-85. [PMID: 24286281 DOI: 10.1111/all.12325] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/14/2013] [Indexed: 12/15/2022]
Abstract
Allergic diseases are considered the epidemics of the twentieth century estimated to affect more than 30% of the population in industrialized countries with a still increasing incidence. During the past two decades, the application of molecular biology allowed cloning, production and characterization of hundreds of recombinant allergens. In turn, knowledge about molecular, chemical and biologically relevant allergens contributed to increase our understanding of the mechanisms underlying IgE-mediated type I hypersensitivity reactions. It has been largely demonstrated that fungi are potent sources of allergenic molecules covering a vast variety of molecular structures including enzymes, toxins, cell wall components and phylogenetically highly conserved cross-reactive proteins. Despite the large knowledge accumulated and the compelling evidence for an involvement of fungal allergens in the pathophysiology of allergic diseases, fungi as a prominent source of allergens are still largely neglected in basic research as well as in clinical practice. This review aims to highlight the impact of fungal allergens with focus on asthma and atopic dermatitis.
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Affiliation(s)
- R. Crameri
- Swiss Institute of Allergy and Asthma Research (SIAF); University of Zürich; Davos Switzerland
| | - M. Garbani
- Swiss Institute of Allergy and Asthma Research (SIAF); University of Zürich; Davos Switzerland
| | - C. Rhyner
- Swiss Institute of Allergy and Asthma Research (SIAF); University of Zürich; Davos Switzerland
| | - C. Huitema
- Swiss Institute of Allergy and Asthma Research (SIAF); University of Zürich; Davos Switzerland
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An electrochemiluminescence (ECL)-based assay for the specific detection of anti-drug antibodies of the IgE isotype. J Pharm Biomed Anal 2013; 86:73-81. [PMID: 23988731 DOI: 10.1016/j.jpba.2013.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 06/08/2013] [Accepted: 06/11/2013] [Indexed: 11/24/2022]
Abstract
To address a possible linkage between the occurrence of the hypersensitivity reactions and the induction of IgE anti-drug-antibodies (ADA), a drug specific IgE ADA assay was developed using electrochemiluminescence (ECL) technology. In the assay a drug-specific IgE isotype chimeric antibody was generated and used as an ADA positive control. The biotinylated drug X (an antibody) and ruthenium-labeled omalizumab (an anti-human IgE antibody) were used as capture and detection reagents, respectively. The binding affinities of the chimeric IgE isotype positive control have been shown to be highly comparable to drug X and drug Y (drug X is the 2nd generation of drug Y), indicating that it could serve as a highly useful control to compare and contrast the relative ability of the two generations of drug to elicit IgE ADA responses. The assay cut point factor (CPF) was estimated to be 1.13. The cut point factor derived from normal human serum samples was statistically equivalent to the cut point factor determined from targeted population samples. The assay could detect less than 250ng/mL of IgE antibodies in the presence of 300μg/mL drug X. The assay sensitivity was <0.2ng/mL. A minimal prozone was observed at 100μg/mL IgE ADA, but the sample remained highly detectable. The inter-assay precision was within 12%. The assay was not susceptible to non-specific matrix effects. The performance specifications ensured that the assay was suitable for validation. The combination of the chimeric IgE positive control and the detection antibody (ruthenium-labeled omalizumab) used for the assay could potentially provide a general bioanalytical approach for other biopharmaceuticals for the detection of IgE ADA responses.
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Comparison of three multiple allergen simultaneous tests: RIDA allergy screen, MAST optigen, and polycheck allergy. BIOMED RESEARCH INTERNATIONAL 2012; 2013:340513. [PMID: 23484110 PMCID: PMC3591101 DOI: 10.1155/2013/340513] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 11/14/2012] [Accepted: 11/19/2012] [Indexed: 01/23/2023]
Abstract
We compared the performances of 3 Multiple Allergen Simultaneous Test (MAST) assays: RIDA Allergy Screen (R-Biopharm, Darmstadt, Germany), MAST Optigen allergy system (Hitachi Chemical Diagnostics, Mountain View, CA), and Polycheck Allergy (Biocheck GmbH, Munster, Germany). Forty sera that tested positive with the RIDA Allergy Screen (20 for food and 20 for inhalant panel) were subjected to MAST Optigen and Polycheck Allergy. For 26 available sera with discrepant results, 62 ImmunoCAP allergen-specific IgE tests (Pharmacia Diagnostics, Uppsala, Sweden) were performed. Percent agreements (kappa value) were 87.6% (0.59) and 91.3% (0.60) between RIDA and MAST; 89.9% (0.55) and 88.3% (0.46) between RIDA and Polycheck; and 86.8% (0.51) and 90.6% (0.61) between MAST and Polycheck. Compared with ImmunoCAP, agreements (kappa value) of inhalant and food panels were 51.7% (0.04) and 33.3% (−0.38) for RIDA; 60.7% (0.27) and 81.8% (0.59) for MAST; and 65.5% (0.26) and 45.5% (0.07) for Polycheck. The agreements between RIDA, MAST, and Polycheck and ImmunoCAP-positivity were 45.7%, 88.2%, and 28.6%, respectively, and the agreements for ImmunoCAP-negativity were 37.0%, 51.9%, and 88.9%. MAST Optigen showed better agreement with ImmunoCAP than other assays in the food panel. Better sensitivity of MAST Optigen and better specificity of Polycheck Allergy were suspected.
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