PMID- 36514263 OWN - NLM STAT- MEDLINE DCOM- 20221215 LR - 20221222 IS - 1643-3750 (Electronic) IS - 1234-1010 (Print) IS - 1234-1010 (Linking) VI - 28 DP - 2022 Dec 14 TI - Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase Levels. PG - e937990 LID - 10.12659/MSM.937990 [doi] AB - BACKGROUND In this paper we report on the link between increased tryptase levels and prevalence of allergen-specific immunoglobulin E (IgE) in patients with anaphylaxis. The main aim of the study was to assess the corelation between elevated tryptase levels and allergen-specific immunoglobulin E (IgE) in anaphylactic reactions, mastocytosis, and other types of allergic reactions. MATERIAL AND METHODS We enrolled 60 adult patients, aged 18-68 years (mean age 45+/-8 years). The subjects were divided into 3 groups (20 patients in each group) according to the serum tryptase changes: group 1 consisted of patients with anaphylaxis (serum tryptase level >/=11.4 microg/l), group 2 consisted of patients with mastocytosis (serum tryptase level >/=20.0 microg/l), and group 3 consisted of patients with other allergic reactions with no anaphylaxis as an atopic control group (serum tryptase level <11.4 microg/l). The test material was venous blood serum samples. The allergen-specific IgE assay was carried out by immunoblot. Tryptase concentration was determined by immunoenzymatic assay. RESULTS Allergen-specific IgE was found in 73% of all subjects: 75% in the anaphylactic group, 55% in the mastocytosis group, and 90% in the atopic control group. Polysensitization was common and was significantly different among groups. In the atopic group, there were more patients allergic to 4-7 allergens (P<0.05). CONCLUSIONS We did not find a strong correlation between allergen-specific IgE levels and elevated tryptase levels. FAU - Cerniauskiene, Mege AU - Cerniauskiene M AD - Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, Vilnius, Lithuania. AD - JSC "Imunodiagnostika", Vilnius, Lithuania. FAU - Bagdonaite, Loreta AU - Bagdonaite L AD - Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, Vilnius, Lithuania. FAU - Karciauskaite, Dovile AU - Karciauskaite D AD - Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, Vilnius, Lithuania. FAU - Kvedariene, Violeta AU - Kvedariene V AD - Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, Vilnius, Lithuania. LA - eng PT - Journal Article DEP - 20221214 PL - United States TA - Med Sci Monit JT - Medical science monitor : international medical journal of experimental and clinical research JID - 9609063 RN - EC 3.4.21.59 (Tryptases) RN - 37341-29-0 (Immunoglobulin E) RN - 0 (Allergens) SB - IM MH - Adult MH - Humans MH - Middle Aged MH - Tryptases MH - Prevalence MH - Immunoglobulin E MH - *Anaphylaxis MH - *Mastocytosis MH - Allergens PMC - PMC9762103 COIS- Conflict of interest: None declared EDAT- 2022/12/15 06:00 MHDA- 2022/12/16 06:00 PMCR- 2022/12/14 CRDT- 2022/12/14 01:23 PHST- 2022/12/14 01:23 [entrez] PHST- 2022/12/15 06:00 [pubmed] PHST- 2022/12/16 06:00 [medline] PHST- 2022/12/14 00:00 [pmc-release] AID - 937990 [pii] AID - 10.12659/MSM.937990 [doi] PST - epublish SO - Med Sci Monit. 2022 Dec 14;28:e937990. doi: 10.12659/MSM.937990.