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Fu T, Wu Y, Wang R, Liu R, Wen T, Long H, Yu H, Leng M. Research hotspots in urticaria: A bibliometric study of the top 100 most cited articles. Skin Res Technol 2024; 30:e13731. [PMID: 38747942 PMCID: PMC11095479 DOI: 10.1111/srt.13731] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 04/23/2024] [Indexed: 05/18/2024]
Abstract
BACKGROUND AND PURPOSE Urticaria is a prevalent recurrent skin allergic condition. Severe itching significantly impacts patients' quality of life. This paper aims to investigate the development status of urticaria through bibliometric analysis to predict future research hotspots and trends. METHODS On October 29, 2023, a literature search was conducted in the Web of Science (WOS) database to collect urticaria-related publications. The top 100 most cited articles were charted, and VOSviewer software was utilized for the literature data analysis. A visual analysis was performed on the number of articles, journals, main researchers, keywords, and so on. RESULTS The research involved 415 authors from 28 countries, published across 25 journals, ranging from 1963 to 2023. Marcus Maurer was the leading author, with the United States being the foremost country in urticaria research. CEH Grattan received the most citations, and The Medical University of South Carolina had the highest number of publications. Key research focuses include epidemiology, pathogenesis, drug therapy, and quality of life assessments. "Anti-high affinity IgE receptor α chain (FcεRIα)," "chronic idiopathic urticaria," "autoantibodies," "histamine-release" emerged as the keywords with the highest prominence. CONCLUSION The field of urticaria research has attracted substantial attention over the past few decades, witnessing rapid development. This study highlighted the top 100 articles by citation frequency within the urticaria field. Bibliometric analysis revealed a shift in treatment methods from traditional antihistamines to biological agents, with significant emphasis on improving the quality of life in chronic urticaria management. These areas represent the current research focal points and indicate future trends in urticaria research.
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Affiliation(s)
- Tingting Fu
- Three Gorges University Hospital of Traditional Chinese Medicine & Yichang Hospital of Traditional Chinese MedicineYichangHubeiChina
| | - Yuhong Wu
- Shenyang Seventh People's Hospital (Shenyang Hospital of Integrated Traditional Chinese and Western Medicine)ShenyangLiaoningChina
| | - Ruoxin Wang
- Daqing Hospital of Traditional Chinese MedicineDaqingHeilongjiangChina
| | - Rongqi Liu
- Beijing Traditional Chinese Medicine Hospital Affiliated to Capital Medical UniversityBeijingChina
| | - Tao Wen
- Three Gorges University Hospital of Traditional Chinese Medicine & Yichang Hospital of Traditional Chinese MedicineYichangHubeiChina
| | - Huaqing Long
- Three Gorges University Hospital of Traditional Chinese Medicine & Yichang Hospital of Traditional Chinese MedicineYichangHubeiChina
| | - Hongyin Yu
- Three Gorges University Hospital of Traditional Chinese Medicine & Yichang Hospital of Traditional Chinese MedicineYichangHubeiChina
| | - Mengyin Leng
- Three Gorges University Hospital of Traditional Chinese Medicine & Yichang Hospital of Traditional Chinese MedicineYichangHubeiChina
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Metz M, Altrichter S, Buttgereit T, Fluhr JW, Fok JS, Hawro T, Jiao Q, Kolkhir P, Krause K, Magerl M, Pyatilova P, Siebenhaar F, Su H, Terhorst-Molawi D, Weller K, Xiang YK, Maurer M. The Diagnostic Workup in Chronic Spontaneous Urticaria-What to Test and Why. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:2274-2283. [PMID: 33857657 DOI: 10.1016/j.jaip.2021.03.049] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/17/2021] [Accepted: 03/27/2021] [Indexed: 01/19/2023]
Abstract
BACKGROUND In chronic spontaneous urticaria (CSU), the guidelines recommend very limited diagnostic procedures during the routine workup, although additional investigations might be indicated in some patients with CSU. For physicians treating patients with CSU, it is often difficult to decide which diagnostic tests are useful. OBJECTIVE To provide recommendations on what diagnostic tests should be performed on which patients with CSU. METHODS We performed an extensive literature search on the respective topics and identified relevant questions that should prompt diagnostic procedures based on the published evidence and expert consensus among all authors. RESULTS We provide questions, diagnostic testing, where appropriate, and recommendation that should be included when assessing the history of a patient with CSU, to explore and rule out differential diagnoses, to assess patients for underlying causes and modifying conditions, to explore patients for comorbid diseases and consequences of having CSU, and to assess patients for CSU components that can help to predict their disease course and response to treatment. CONCLUSIONS Here, we provide physicians treating patients with CSU with information about which clues should lead to which tests and why.
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Affiliation(s)
- Martin Metz
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Sabine Altrichter
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Thomas Buttgereit
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Joachim W Fluhr
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Jie Shen Fok
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Department of Respiratory Medicine, Box Hill Hospital, Melbourne, Vic, Australia; Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Vic, Australia
| | - Tomasz Hawro
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Qingqing Jiao
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Pavel Kolkhir
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Division of Immune-mediated Skin Diseases, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Karoline Krause
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Markus Magerl
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Polina Pyatilova
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Department of Dermatology and Venereology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Frank Siebenhaar
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Huichun Su
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Department of Dermatology and Venereology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Dorothea Terhorst-Molawi
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Karsten Weller
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Yi-Kui Xiang
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Marcus Maurer
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.
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Çildağ S, Yenisey Ç, Ünübol M, Şentürk T. Comparison of immunoglobulin E anti-thyroid peroxidase antibodies in patients with Hashimoto thyroiditis and chronic spontaneous urticaria. Med Pharm Rep 2021; 94:53-57. [PMID: 33629049 PMCID: PMC7880074 DOI: 10.15386/mpr-1598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 07/27/2020] [Accepted: 09/30/2020] [Indexed: 12/04/2022] Open
Abstract
Background and aim Chronic spontaneous urticaria (CSU) is a disease of unknown etiology and autoimmunity has been thought to be an etiological factor. Immunoglobulin E (IgE)-anti-thyroid peroxidase antibodies (anti-TPO) may play a role in the pathogenesis of certain cases of urticaria. The aim of this study is to investigate IgE-anti-TPO in patients with chronic spontaneous urticaria and in patients with Hashimoto’s thyroiditis. Methods A total of 175 subjects were included in this study. 59 patients had chronic spontaneous urticaria without history of Hashimoto’s thyroiditis, while 58 patients had Hashimoto’s thyroiditis without history of urticaria. The control group consisted of 58 participants without history of Hashimoto’s thyroiditis and urticaria. Serum IgE-anti-TPO levels were analyzed by site-directed IgE capture Enzyme-Linked Immunosorbent Assay technique. We used this technique by modifying it. Results IgE-anti-TPO antibodies were detected in all three groups and in all subjects. There was no significant difference between the three groups in terms of IgE-anti-TPO levels. Although total IgE and IgE-anti-TPO levels were higher in the IgG-anti-TPO positive chronic spontaneous urticaria, there was no significant difference. Conclusions IgE-anti-TPO antibodies do not play a pathogenic role in the majority of patients with chronic spontaneous urticaria.
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Affiliation(s)
- Songül Çildağ
- Department of Immunology and Allergy, Adnan Menderes University, Turkey
| | - Çiğdem Yenisey
- Department of Biochemistry, Adnan Menderes University, Turkey
| | - Mustafa Ünübol
- Department of Endocrinology and Metabolism, Adnan Menderes University, Turkey
| | - Taşkın Şentürk
- Department of Immunology and Allergy, Adnan Menderes University, Turkey
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Guo Y, Li HM, Zhu WQ, Li Z. Role of Helicobacter pylori Eradication in Chronic Spontaneous Urticaria: A Propensity Score Matching Analysis. Clin Cosmet Investig Dermatol 2021; 14:129-136. [PMID: 33584099 PMCID: PMC7876511 DOI: 10.2147/ccid.s293737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 12/26/2020] [Indexed: 11/25/2022]
Abstract
Objective To investigate the role of Helicobacter pylori (HP) eradication in chronic spontaneous urticaria (CSU) treatment. Methods Retrospective analysis was performed on the clinical data of 522 patients with CSU who underwent a HP breath test in Hangzhou Third People’s Hospital between January 2018 and December 2019. The CSU-HP(+) group consisted of patients with CSU and HP infection, who were treated with antihistamines combined with HP eradication therapy. The CSU-HP(-) group consisted of patients with CSU alone, who were treated with antihistamines. Propensity score matching (PSM) analysis, using the nearest neighbor matching method on a 1:1 basis, was performed to ensure the characteristics of the CSU-HP(+) and CSU-HP(-) groups were similar. Factors, including age, gender, white blood cells, red blood cells, platelets, alanine transaminase, creatinine, immunoglobulin E, and pre-treatment urticaria activity score (UAS), were matched to obtain a balanced cohort of patients in each group. Therapeutic effects were compared after matching. t-tests, Χ2 test, and McNemar’s test were used for comparison between the two groups before and after matching. Results Patients in the CSU-HP(+) group reported significantly more gastrointestinal symptoms than those in the CSU-HP(-) group. UAS scores in the second week of treatment were significantly different between the two groups. After 3 months, the recurrence rate in the CSU-HP(+) group was lower than in the CSU-HP(-) group. Conclusion Eradication of HP infection in patients with CSU helps relieve gastrointestinal symptoms, improves the therapeutic effect of CSU within 2 weeks, and reduces the recurrence rate 3 months after treatment.
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Affiliation(s)
- Yan Guo
- Department of Gastroenterology, Hangzhou Third People's Hospital, Hangzhou, 310009, People's Republic of China
| | - Hua-Ming Li
- Department of Gastroenterology, Hangzhou Third People's Hospital, Hangzhou, 310009, People's Republic of China
| | - Wei-Qin Zhu
- Department of Gastroenterology, Hangzhou Third People's Hospital, Hangzhou, 310009, People's Republic of China
| | - Zhen Li
- Department of Gastroenterology, Hangzhou Third People's Hospital, Hangzhou, 310009, People's Republic of China
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Chen CM, Huang WT, Chang LJ, Hsu CC, Hsu YH. Peptic Ulcer Disease is Associated with Increased Risk of Chronic Urticaria Independent of Helicobacter pylori Infection: A Population-Based Cohort Study. Am J Clin Dermatol 2021; 22:129-137. [PMID: 32915422 DOI: 10.1007/s40257-020-00561-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Some studies showed patients with chronic urticaria have a higher rate of peptic ulcer disease (PUD). Whether PUD is a risk factor for chronic urticaria is unclear. OBJECTIVE The objective of this study was to evaluate the incidence of and risk factors for chronic urticaria in patients with PUD using the Taiwan National Health Insurance Research Database. METHODS We conducted a retrospective nationwide cohort study of the period 2000-2012 and involving 11,901 patients with PUD who underwent Helicobacter pylori (HP) therapy (PUD + HP group) and an equal number of matched patients without HP infection (PUD - HP group). Furthermore, we enrolled 23,802 patients without PUD for comparison (non-PUD group). The Cox proportional hazards regression model was used to analyze chronic urticaria risk after adjusting for potential confounding factors. RESULTS The mean ages of the three groups were around 50 years. Approximately 42.6% were female. Chronic urticaria incidences in the PUD + HP and PUD - HP groups were both significantly higher than that in the non-PUD group. The hazard ratios of chronic urticaria in the PUD + HP group and the PUD - HP group were 1.34 (95% confidence interval 1.09-1.64) and 1.45 (95% confidence interval 1.19-1.79), respectively. The risk difference became significant 2 years after patients with PUD had the HP infection tests and persisted till the end of follow-up. The risk increase was significant in patients with PUD who were female or aged 40-64 years. There was no difference in the risk comparison between PUD + HP and PUD - HP groups. CONCLUSIONS Peptic ulcer disease, independent of HP infection, is associated with an increased chronic urticaria risk. Patients with PUD who were female or aged 40-64 years are more likely to have chronic urticaria.
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Combination therapy with omalizumab and an immune-suppressive agent for resistant chronic spontaneous rrticaria - A real-life experience. World Allergy Organ J 2020; 13:100448. [PMID: 32774663 PMCID: PMC7403771 DOI: 10.1016/j.waojou.2020.100448] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 11/20/2022] Open
Abstract
Background Chronic Spontaneous Urticaria (CSU) is a relatively common immune mediated disease that can be effectively treated nowadays. Nevertheless, for some patients remission cannot be achieved following current treatment recommendations, defined as resistant CSU (r-CSU). Treating r-CSU is challenging, and, currently, there are no recommended interventions. In this real-life study we describe successful therapy of 18 r-CSU patients using an "intensified protocol" of anti-IgE-antibody (omalizumab) concomitantly with an immunosuppressant. We defined the r-CSU phenotype and compared it to omalizumab-responsive CSU (Or-CSU) phenotype. Methods Clinical and serological data of 72 CSU patients (ie, 18 r-CSU and 54 age and sex matched Or-CSU) were retrospectively collected and analyzed. All patients were diagnosed with CSU for ≥6 months and treated at the Sheba Medical Center during 2013–2018. Results Of 289 CSU patients, 18 (6%) were diagnosed with r-CSU and treated with the "intensified protocol" including omalizumab and cyclosporine-A (16p), methotrexate (1p), and azathioprine (1p). Of which, 14/18 (78%) achieved complete remission, 2/18 (11%) partial remission, and 2/18 (11%) no remission. During follow-up no serious adverse events were documented. r-CSU patients received higher doses of antihistamine (p < 0.0001) and omalizumab (425 ± 58 mg/month vs. 283 ± 86 mg/month; p < 0.0001) compared to Or-CSU. The r-CSU phenotype was linked with concomitant autoimmunity (p = 0.0005) and a lower level of IgE prior to initiation of therapy (p = 0.027). Conclusion r-CSU may be a distinct CSU phenotype characterized by severe disease, concomitant autoimmunity, and lower baseline-IgE levels (low "autoallergy"). An "intensified protocol" with omalizumab and an immunosuppressive agent was found to be efficacious and safe for r-CSU. Further larger studies are required to verify these results.
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Kutlu Ö, Doğan Z, Ekşioğlu HM, Kekilli M. Relationship between helicobacter pylori infection and pityriasis versicolor: can helicobacter pylori infection be a new etiologic factor for pityriasis versicolor? Turk J Med Sci 2020; 50:771-775. [PMID: 32151117 PMCID: PMC7379430 DOI: 10.3906/sag-1910-48] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 03/05/2020] [Indexed: 12/20/2022] Open
Abstract
Background/aim H. pylori has been found to be related to certain dermatological diseases. However, there is no data as yet to propose an association between H. pylori and pityriasis versicolor. In this study, we aimed to evaluate the association between H. pylori and pityriasis versicolor. Materials and methods This was a prospective study performed in the Gastroenterology and Dermatology and Venereology departments of the Health Sciences University, Ankara Training and Research Centre. A total of 57 consecutive patients (27 pityriasis versicolor, 30 telogen effluvium) were enrolled from the Department of Dermatology and Venereology. All patients were screened for H. pylori IgG and CagA. In addition, urea breath test was carried out to detect the existence of H. pylori infection. Results There were significantly higher rates of H. pylori positivity, H. pylori IgG in serum in the pityriasis versicolor group compared to the telogen effluvium group (P < 0.05). In addition, the number of patients with dyspeptic complaints was higher in the pityriasis versicolor group than in the telogen effluvium group. The odds ratio for dyspepsia, H. pylori positivity, and H. pylori IgG were 2.48, 1.67, and 1.78, respectively. Conclusion In this study, we found a statistically significant relationship between H. pylori infection and pityriasis versicolor. Therefore, H. pylori eradication could be considered in recurrent pityriasis versicolor patients with dyspepsia. New studies are required to clarify the effect of eradication treatment on the clinical course of pityriasis versicolor.
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Affiliation(s)
- Ömer Kutlu
- Department of Dermatology and Venereology, School of Medicine, Uşak University, Uşak, Turkey
| | - Zeynal Doğan
- Department of Gastroenterology, Adıyaman Training and Research Hospital, Adıyaman, Turkey
| | - Hatice Meral Ekşioğlu
- Department of Dermatology and Venereology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Murat Kekilli
- Department of Gastroenterology, Ankara Training and Research Hospital, Ankara, Turkey
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Maurer M, Eyerich K, Eyerich S, Ferrer M, Gutermuth J, Hartmann K, Jakob T, Kapp A, Kolkhir P, Larenas-Linnemann D, Park HS, Pejler G, Sánchez-Borges M, Schäkel K, Simon D, Simon HU, Weller K, Zuberbier T, Metz M. Urticaria: Collegium Internationale Allergologicum (CIA) Update 2020. Int Arch Allergy Immunol 2020; 181:321-333. [PMID: 32224621 DOI: 10.1159/000507218] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 03/11/2020] [Indexed: 12/13/2022] Open
Abstract
This update on chronic urticaria (CU) focuses on the prevalence and pathogenesis of chronic spontaneous urticaria (CSU), the expanding spectrum of patient-reported outcome measures (PROMs) for assessing CU disease activity, impact, and control, as well as future treatment options for CU. This update is needed, as several recently reported findings have led to significant advances in these areas. Some of these key discoveries were first presented at past meetings of the Collegium Internationale Allergologicum (CIA). New evidence shows that the prevalence of CSU is geographically heterogeneous, high in all age groups, and increasing. Several recent reports have helped to better characterize two endotypes of CSU: type I autoimmune (or autoallergic) CSU, driven by IgE to autoallergens, and type IIb autoimmune CSU, which is due to mast cell (MC)-targeted autoantibodies. The aim of treatment in CU is complete disease control with absence of signs and symptoms as well as normalization of quality of life (QoL). This is best monitored by the use of an expanding set of PROMs, to which the Angioedema Control Test, the Cholinergic Urticaria Quality of Life Questionnaire, and the Cholinergic Urticaria Activity Score have recently been added. Current treatment approaches for CU under development include drugs that inhibit the effects of signals that drive MC activation and accumulation, drugs that inhibit intracellular pathways of MC activation and degranulation, and drugs that silence MCs by binding to inhibitory receptors. The understanding, knowledge, and management of CU are rapidly increasing. The aim of this review is to provide physicians who treat CU patients with an update on where we stand and where we will go. Many questions and unmet needs remain to be addressed, such as the development of routine diagnostic tests for type I and type IIb autoimmune CSU, the global dissemination and consistent use of PROMs to assess disease activity, impact, and control, and the development of more effective and well-tolerated long-term treatments for all forms of CU.
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Affiliation(s)
- Marcus Maurer
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany,
| | - Kilian Eyerich
- Division of Dermatology and Venerology, Department of Medicine Solna and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Stefanie Eyerich
- Center for Allergy and Environment, Technical University and Helmholtz Center Munich, Munich, Germany
| | - Marta Ferrer
- Department of Allergy and Clinical Immunology, Clínica Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra Pamplona, Spain, RETIC de Asma, Reacciones Adversas y Alérgicas, Madrid, Spain
| | - Jan Gutermuth
- Department of Dermatology, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karin Hartmann
- Division of Allergy, Department of Dermatology, University of Basel, Basel, Switzerland
| | - Thilo Jakob
- Department of Dermatology and Allergy, University Medical Center Giessen, Justus-Liebig University Giessen, Giessen, Germany
| | - Alexander Kapp
- Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Pavel Kolkhir
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Division of Immune-Mediated Skin Diseases, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Désirée Larenas-Linnemann
- Center of Excellence in Asthma and Allergy, Médica Sur, Clinical Foundation and Hospital, Mexico City, Mexico
| | - Hae-Sim Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Gunnar Pejler
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Mario Sánchez-Borges
- Allergy and Clinical Immunology Department, Centro Médico Docente La Trinidad, Caracas, Venezuela
| | - Knut Schäkel
- Department of Dermatology, Heidelberg University, Heidelberg, Germany
| | - Dagmar Simon
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland.,Department of Clinical Immunology and Allergology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Karsten Weller
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Torsten Zuberbier
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Martin Metz
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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Jian X, Chao S, Xiaoli Z, Aiwu W. Inactivated P. aeruginosa restores immune imbalance of chronic idiopathic urticaria. Arch Dermatol Res 2019; 312:353-359. [PMID: 31797034 DOI: 10.1007/s00403-019-02019-3] [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] [Received: 09/11/2019] [Revised: 11/06/2019] [Accepted: 11/20/2019] [Indexed: 11/28/2022]
Abstract
The main pathology involved in chronic idiopathic urticaria (CIU) is immunological dysfunction which mainly adapts to the immune system of body. Pseudomonas aeruginosa-mannose-sensitive hemagglutinin (PA) is an inactivated Pseudomonas aeruginosa biological product which displays a broad immune regulatory effect. The current study was designed to explore the protective nature of PA as an immune regulator in CIU. The participants were randomly divided into CIU + PA, CIU, control + PA and control group. lg E, anti FcεRI, anti IgE antibody, IL-4, IL-17, TGF-β1 and interferon-γ in the sera were assayed by ELISA. Then CD4+ T cells and CD19+ B cells were isolated from peripheral blood of patients with CIU (n = 10) and healthy control (n = 10). CD4+ T cells and CD19+ B proliferation and apoptosis were analyzed through CCK-8 and flow cytometry respectively. T helper cells differentiations were assessed by real-time PCR. The results revealed that compared with the control group, the curative effect of CIU + PA group was more effective than that of the CIU control group. There was a hyper proliferation of CD19+ B cells in the CIU patients. Moreover, it was also discovered that presence of Th1 decreased while Th2 cells increased in CIU patients. PA significantly inhibited the proliferation of CD19+ B and Th2 cells but at the same time promoted the proliferation of Th1 compared to healthy control. The conclusion arrived at from this study is that the PA displayed a remarkable regulatory effect in CD4+ T cells and CD19+ B cells function by promoting Th1 but inhibited Th2 and the hyperfunction of B cells of CIU patients.
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Affiliation(s)
- Xie Jian
- Department of Pharmacy, Shandong Provincial Third Hospital, 12 Wuyingshan Middle Road, Tianqiao District, Jinan, 250031, Shandong, China
| | - Song Chao
- Department of Pharmacy, Shandong Provincial Third Hospital, 12 Wuyingshan Middle Road, Tianqiao District, Jinan, 250031, Shandong, China.
| | - Zhang Xiaoli
- Department of Pharmacy, Shandong Provincial Third Hospital, 12 Wuyingshan Middle Road, Tianqiao District, Jinan, 250031, Shandong, China
| | - Wang Aiwu
- Department of Pharmacy, Shandong Provincial First Hospital, Jinan, 250021, Shandong, China
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10
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Puxeddu I, Petrelli F, Angelotti F, Croia C, Migliorini P. Biomarkers In Chronic Spontaneous Urticaria: Current Targets And Clinical Implications. J Asthma Allergy 2019; 12:285-295. [PMID: 31571935 PMCID: PMC6759208 DOI: 10.2147/jaa.s184986] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/05/2019] [Indexed: 01/02/2023] Open
Abstract
Chronic urticaria (CU) is a mast cell-driven disease characterized by the development of wheals, angioedema, or both for more than 6 weeks. The two major sub-types are chronic spontaneous urticaria (CSU) and inducible urticaria. In the last decade different pathophysiological mechanisms, potentially responsible for the development of the disease, have been described. It is likely that the activation of mast cells and basophils in CSU can be the results of immune system dysregulation, activation of the inflammatory cascade, and of the extrinsic coagulation pathway. Some of the mediators involved in the pathophysiological mechanisms of CSU have recently been identified as potential biomarkers useful for the diagnosis, follow-up, and management of the disease, even if they are not yet available in clinical practice. Thus, in this review we discuss new insights in the mediators involved in the pathogenesis of CSU, highlighting their potential role as biomarkers in the activity and progression of the disease and response to therapies.
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Affiliation(s)
- Ilaria Puxeddu
- Clinical Immunology Unit, Department of Clinical and Experimental Medicine, Pisa University, Pisa, Italy
| | - Fiorella Petrelli
- Clinical Immunology Unit, Department of Clinical and Experimental Medicine, Pisa University, Pisa, Italy
| | - Francesca Angelotti
- Clinical Immunology Unit, Department of Clinical and Experimental Medicine, Pisa University, Pisa, Italy
| | - Cristina Croia
- Clinical Immunology Unit, Department of Clinical and Experimental Medicine, Pisa University, Pisa, Italy
| | - Paola Migliorini
- Clinical Immunology Unit, Department of Clinical and Experimental Medicine, Pisa University, Pisa, Italy
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11
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Izaki S, Toyoshima S, Endo T, Kanegae K, Nunomura S, Kashiwakura JI, Sasaki-Sakamoto T, Nakamura R, Akiyama H, Ra C, Hayama K, Terui T, Okayama Y. Differentiation between control subjects and patients with chronic spontaneous urticaria based on the ability of anti-IgE autoantibodies (AAbs) to induce FcεRI crosslinking, as compared to anti-FcεRIα AAbs. Allergol Int 2019; 68:342-351. [PMID: 30803853 DOI: 10.1016/j.alit.2019.01.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 01/09/2019] [Accepted: 01/09/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The reported prevalences of IgG autoantibodies (AAbs) to FcεRIα and IgE in sera from patients with chronic spontaneous urticaria (CSU) have varied, and these AAbs are also often observed in healthy control subjects. Regarding the histamine release activity of purified IgG from patients with CSU, the number of examined patients has been small. Thus, we sought to determine the prevalence and FcεRI crosslinking ability of these AAbs in a large number of patients with CSU and non-atopic control (NC) subjects. METHODS We compared the concentrations of anti-IgE and anti-FcεRIα AAbs and the abilities of these AAbs to cause FcεRI aggregation in patients with CSU (n = 134) and NC subjects (n = 55) using ELISA and an in vitro elicitation test, respectively. RESULTS The concentration of anti-IgE AAbs was significantly different between the NC subjects and the CSU patients (P < 0.0001, cutoff value: 0.558 μg/mL), whereas the concentration of anti-FcεRIα AAbs was not. A significant difference in the duration of illness was noted between patients with lower and those with higher concentrations of anti-IgE AAbs relative to the cutoff value. The abilities of anti-IgE AAbs, but not anti-FcεRIα AAbs, to induce FcεRI crosslinking were significantly higher in CSU patients than in NC subjects (P = 0.0106). CONCLUSIONS In the Japanese population of CSU patients studied, the ability of the anti-IgE AAbs to induce FcεRI crosslinking differed significantly between NC subjects and CSU patients, suggesting the involvement of anti-IgE AAbs in the pathogenesis of CSU in the Japanese population.
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Affiliation(s)
- Satoshi Izaki
- Allergy and Immunology Research Project Team, Nihon University School of Medicine, Tokyo, Japan; Department of Dermatology, Nihon University School of Medicine, Tokyo, Japan
| | - Shota Toyoshima
- Allergy and Immunology Research Project Team, Nihon University School of Medicine, Tokyo, Japan; Center for Institutional Research and Medical Education, Nihon University School of Medicine, Tokyo, Japan
| | - Takahiro Endo
- Allergy and Immunology Research Project Team, Nihon University School of Medicine, Tokyo, Japan; Department of Dermatology, Nihon University School of Medicine, Tokyo, Japan
| | - Kazuko Kanegae
- Allergy and Immunology Research Project Team, Nihon University School of Medicine, Tokyo, Japan; Center for Institutional Research and Medical Education, Nihon University School of Medicine, Tokyo, Japan
| | - Satoshi Nunomura
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga, Japan
| | - Jun-Ichi Kashiwakura
- Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Tomomi Sasaki-Sakamoto
- Allergy and Immunology Research Project Team, Nihon University School of Medicine, Tokyo, Japan; Center for Institutional Research and Medical Education, Nihon University School of Medicine, Tokyo, Japan
| | - Ryosuke Nakamura
- Division of Medicinal Safety Science, National Institute of Health Sciences, Kawasaki, Japan
| | - Haruyo Akiyama
- Division of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Teikyo Heisei University, Tokyo, Japan
| | - Chisei Ra
- Department of Microbiology, Nihon University School of Medicine, Tokyo, Japan; Department of Clinical Laboratory, Asahi General Hospital, Chiba, Japan
| | - Koremasa Hayama
- Allergy and Immunology Research Project Team, Nihon University School of Medicine, Tokyo, Japan; Department of Dermatology, Nihon University School of Medicine, Tokyo, Japan
| | - Tadashi Terui
- Department of Dermatology, Nihon University School of Medicine, Tokyo, Japan
| | - Yoshimichi Okayama
- Allergy and Immunology Research Project Team, Nihon University School of Medicine, Tokyo, Japan; Center for Institutional Research and Medical Education, Nihon University School of Medicine, Tokyo, Japan.
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12
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Church MK, Kolkhir P, Metz M, Maurer M. The role and relevance of mast cells in urticaria. Immunol Rev 2018; 282:232-247. [DOI: 10.1111/imr.12632] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Martin K. Church
- Department of Dermatology and Allergy; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - Pavel Kolkhir
- Department of Dermatology and Venereology; Sechenov First Moscow State Medical University; Moscow Russian Federation
| | - Martin Metz
- Department of Dermatology and Allergy; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - Marcus Maurer
- Department of Dermatology and Allergy; Charité - Universitätsmedizin Berlin; Berlin Germany
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13
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Kolkhir P, André F, Church MK, Maurer M, Metz M. Potential blood biomarkers in chronic spontaneous urticaria. Clin Exp Allergy 2017; 47:19-36. [PMID: 27926978 DOI: 10.1111/cea.12870] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chronic spontaneous urticaria (CSU) is a mast cell-driven disease that is defined as the recurrence of weals, angioedema or both for > 6 weeks due to known or unknown causes. As of yet, disease diagnosis is purely clinical. Objective tools are needed to monitor the activity of CSU and the efficacy of treatment. Recently, several reports have suggested that blood parameters may be considered as potential disease-related biomarkers. Here, we reviewed available literature on blood biomarkers for CSU diagnosis, activity monitoring, duration, patient subgroup allocation or response to treatment. We performed a PubMed, Google Scholar and Web of Science search and identified and analysed 151 reports published prior to January 2016. We found strong evidence for significant differences between patients with CSU and healthy controls in blood levels or values of D-dimer, C-reactive protein (CRP), matrix metalloproteinase-9 (MMP-9), mean platelet volume (MPV), factor VIIa, prothrombin fragment 1 + 2 (F1 + 2), tumour necrosis factor, dehydroepiandrosterone sulphate and vitamin D. Also, there is strong evidence for a significant association between CSU activity and blood levels or values of D-dimer, F1 + 2, CRP, IL-6 and MPV. Strong evidence for reduced basophil count and high levels of IgG anti-FcεRI in the subgroup of CSU patients with positive autologous serum skin test was shown. In contrast, the evidence for all reported blood biomarkers for differentiating CSU from other diseases, or a role in prognosis, is weak, inconsistent or non-existent. Taken together, we identified 10 biomarkers that are supported by strong evidence for distinguishing patients with CSU from healthy controls, or for measuring CSU activity. There is a need for further research to identify biomarkers that predict outcome or treatment response in CSU.
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Affiliation(s)
- P Kolkhir
- Department of Dermatology and Venereology, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - F André
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - M K Church
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - M Maurer
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - M Metz
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
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14
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Kolkhir P, Metz M, Altrichter S, Maurer M. Comorbidity of chronic spontaneous urticaria and autoimmune thyroid diseases: A systematic review. Allergy 2017; 72:1440-1460. [PMID: 28407273 DOI: 10.1111/all.13182] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2017] [Indexed: 02/01/2023]
Abstract
Patients with chronic spontaneous urticaria (CSU) are widely held to often have other autoimmune disorders, including autoimmune thyroid disease. Here, we systematically evaluated the literature on the prevalence of thyroid autoimmunity in CSU and vice versa. There is a strong link between CSU and elevated levels of IgG antithyroid autoantibodies (AAbs), with most of a large number of studies reporting rates of ≥10%. Levels of IgG against thyroid peroxidase (TPO) are more often elevated in CSU than those of other IgG antithyroid AAbs (strong evidence). Levels of IgG antithyroid AAbs are more often elevated in adult patients with CSU than in children (strong evidence). Patients with CSU exhibit significantly higher levels of IgG antithyroid AAbs (strong evidence) and IgE-anti-TPO (weak evidence) than controls. Elevated IgG antithyroid AAbs in CSU are linked to the use of glucocorticoids (weak evidence) but not to disease duration or severity/activity, gender, age, or ASST response (inconsistent evidence). Thyroid dysfunction rates are increased in patients with CSU (strong evidence). Hypothyroidism and Hashimoto's thyroiditis are more common than hyperthyroidism and Graves' disease (strong evidence). Thyroid dysfunction is more common in adult patients with CSU than in children (strong evidence) and in female than in male patients with CSU (weak evidence). Urticaria including CSU is more prevalent in patients with thyroid autoimmunity than in controls (weak evidence). CSU can improve in response to treatment with levothyroxine or other thyroid drugs (strong evidence). Pathogenic mechanisms in CSU patients with thyroid autoimmunity may include IgE against autoantigens, immune complexes, and complement.
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Affiliation(s)
- P. Kolkhir
- Department of Dermatology and Venereology; I.M. Sechenov First Moscow State Medical University; Moscow Russia
| | - M. Metz
- Department of Dermatology and Allergy; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - S. Altrichter
- Department of Dermatology and Allergy; Charité - Universitätsmedizin Berlin; Berlin Germany
| | - M. Maurer
- Department of Dermatology and Allergy; Charité - Universitätsmedizin Berlin; Berlin Germany
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15
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Autoimmune chronic spontaneous urticaria: What we know and what we do not know. J Allergy Clin Immunol 2017; 139:1772-1781.e1. [DOI: 10.1016/j.jaci.2016.08.050] [Citation(s) in RCA: 171] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 08/02/2016] [Accepted: 08/12/2016] [Indexed: 11/19/2022]
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16
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Silvares MRC, Fortes MRP, Nascimento RDAML, Padovani CR, Miot HA, Nogueira CR, Mazeto GMFDS. Thyrotropin receptor gene expression in the association between chronic spontaneous urticaria and Hashimoto's thyroiditis. Int J Dermatol 2017; 56:547-552. [DOI: 10.1111/ijd.13487] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 06/02/2016] [Accepted: 09/12/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Maria R. C. Silvares
- Department of Dermatology and Radiotherapy; Botucatu Medical School; Sao Paulo State University - Unesp; Botucatu Sao Paulo Brazil
| | - Maria R. P. Fortes
- Department of Dermatology and Radiotherapy; Botucatu Medical School; Sao Paulo State University - Unesp; Botucatu Sao Paulo Brazil
| | - Renata de A. M. L. Nascimento
- Department of Internal Medicine; Botucatu Medical School; Sao Paulo State University - Unesp; Botucatu Sao Paulo Brazil
| | - Carlos R. Padovani
- Department of Biostatistics; Institute of Bioscience; Sao Paulo State University - Unesp; Botucatu Sao Paulo Brazil
| | - Hélio A. Miot
- Department of Dermatology and Radiotherapy; Botucatu Medical School; Sao Paulo State University - Unesp; Botucatu Sao Paulo Brazil
| | - Célia R. Nogueira
- Department of Internal Medicine; Botucatu Medical School; Sao Paulo State University - Unesp; Botucatu Sao Paulo Brazil
| | - Gláucia M. F. da S. Mazeto
- Department of Internal Medicine; Botucatu Medical School; Sao Paulo State University - Unesp; Botucatu Sao Paulo Brazil
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17
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Blank U, Charles N, Benhamou M. The high-affinity immunoglobulin E receptor as pharmacological target. Eur J Pharmacol 2016; 778:24-32. [DOI: 10.1016/j.ejphar.2015.05.070] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Revised: 04/29/2015] [Accepted: 05/17/2015] [Indexed: 01/02/2023]
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18
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Association between Helicobacter pylori Infection and Chronic Urticaria: A Meta-Analysis. Gastroenterol Res Pract 2015; 2015:486974. [PMID: 25861258 PMCID: PMC4378606 DOI: 10.1155/2015/486974] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 01/27/2015] [Indexed: 02/08/2023] Open
Abstract
Background. Some studies have shown the possible involvement of Helicobacter pylori (H. pylori) infection in chronic urticaria, but the relationship remains controversial. The aim of this meta-analysis was to quantitatively assess the association between H. pylori infection and chronic urticaria. Methods. Observational studies comparing the prevalence of H. pylori infection in patients with chronic urticaria and control subjects were identified through a systematic search in MEDLINE and EMBASE up to July 2014. H. pylori infection was confirmed by serological or nonserological tests. For subgroup analyses, studies were separated by region, publication year, and H. pylori detection method to screen the potential factors resulting in heterogeneity. Results. 16 studies involving 965 CU cases and 1235 controls were included. Overall, the prevalence of H. pylori infection was higher in urticarial patients than in controls (OR = 1.66; 95% CI: 1.12–2.45; P = 0.01). This result persisted in subanalysis of nine high-quality studies (OR = 1.36; 95% CI: 1.03–1.80; P = 0.03). Subgroup analysis showed that detection method of H. pylori is also a potential influential factor for the overall results. Conclusions. Our present meta-analysis suggests that H. pylori infection is significantly, though weakly, associated with an increased risk of chronic urticaria.
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