PMID- 31997998 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220412 IS - 1642-395X (Print) IS - 2299-0046 (Electronic) IS - 1642-395X (Linking) VI - 36 IP - 6 DP - 2019 Dec TI - Rationale for the autologous serum skin test in acute versus chronic urticaria. PG - 703-706 LID - 10.5114/ada.2019.91421 [doi] AB - INTRODUCTION: Autologous serum skin test (ASST) is a rapid, in-vivo clinical test to detect functional autoantibodies in patients with chronic spontaneous urticaria (CSU), but the rationale for its use in acute urticaria (AU) is unknown. AIM: To evaluate the efficacy of ASST among patients with AU or CSU. MATERIAL AND METHODS: Treatment-naive adult (age >/= 18 years) patients with a diagnosis of AU (< 6 weeks' duration) and CSU were enrolled prospectively in a cross-sectional study. Healthy age- and sex-matched subjects served as controls. Besides a detailed history and physical examination, ASST, total immunoglobulin E (IgE), freeT3 (fT3), freeT4 (fT4), anti-thyroglobulin, and anti-TPO levels were assessed in all subjects. RESULTS: Of 101 subjects, mean age was 34.35 +/-12.68 years and the study comprised 58.4% of females with no difference between AU (n = 27), CSU (n = 46), and control groups (n = 28). The ratio of positivity in ASST was similar between AU (25.9%) and CSU groups (21.7%), but higher than in controls (10.7%, p = 0.33 for all). The ratio of patients with high total IgE levels (> 100 IU/ml) in AU (85.2%) and CSU (65.2%) groups was similar (p = 0.06), but significantly higher than in the control group (10.7%) (p< 0.001 and p< 0.001). The CSU group had significantly higher abnormal thyroid test results (45.7%) than AU (14.8%) and control groups (3.6%) (p = 0.01 and p< 0.001), whereas patients with clinically diagnosed thyroiditis were only in the CSU group (6.5%). In logistic regression analysis, there was no relation found among the possible risk factors for ASST, even if analysed separately as AU, CSU and control groups. CONCLUSIONS: Even though thyroid function test levels were found to be related with CSU, and total IgE was associated with urticaria, ASST was found to be of importance. This study confirms that ASST was insufficient to demonstrate autoimmunity and acute-chronic urticaria nature. Further tests indicating auto-antibodies in AU and CSU are needed. CI - Copyright (c) 2019 Termedia. FAU - Demirkan, Serkan AU - Demirkan S AD - Department of Dermatology and Venerology, Faculty of Medicine, Kirikkale University, Kirikkale, Turkey. FAU - Baccioglu, Ayse AU - Baccioglu A AD - Department of Pulmonary Diseases, Division of Immunology and Allergy, Faculty of Medicine, Kirikkale University, Kirikkale, Turkey. LA - eng PT - Journal Article DEP - 20191230 PL - Poland TA - Postepy Dermatol Alergol JT - Postepy dermatologii i alergologii JID - 101168357 PMC - PMC6986284 OTO - NOTNLM OT - autoimmunity OT - autologous serum skin test OT - chronic urticaria COIS- The authors declare no conflict of interest. EDAT- 2020/01/31 06:00 MHDA- 2020/01/31 06:01 PMCR- 2019/12/01 CRDT- 2020/01/31 06:00 PHST- 2018/01/16 00:00 [received] PHST- 2018/07/11 00:00 [accepted] PHST- 2020/01/31 06:00 [entrez] PHST- 2020/01/31 06:00 [pubmed] PHST- 2020/01/31 06:01 [medline] PHST- 2019/12/01 00:00 [pmc-release] AID - 91421 [pii] AID - 10.5114/ada.2019.91421 [doi] PST - ppublish SO - Postepy Dermatol Alergol. 2019 Dec;36(6):703-706. doi: 10.5114/ada.2019.91421. Epub 2019 Dec 30.