Iron metabolism and peripheral eosinophil count in children with asthma
Keywords:
iron, asthma, childrenAbstract
Background and aim: Iron is a primary component of the human body and exerts many functions, mainly concerning red cells and the immune system. In addition, there is evidence that iron-deficiency anemia is associated with allergic diseases. The present study investigated the possible relationship between iron metabolism and peripheral eosinophils in a general population.
Methods: This retrospective study included 49 children with asthma afferent to a pediatric clinic during the last solar year and evaluated the association between eosinophil count, iron status, and asthma control in 49 children with asthma.
Results: The mean eosinophil count was 346.73 cells/mL. There was a significant difference in age between children with eosinophil counts below and above 300 cells/mL (p=0.02). This difference was particularly evident in females alone when stratified by eosinophil count and sex (p-value of 0.02). There was a slight but positive correlation between the eosinophil count and the ACT score. There was also a mild but negative correlation between the iron status and the ACT score. These results do not support a possible pathogenetic role of iron metabolism on asthma.
Conclusions: The present study did not demonstrate a relationship between iron deficiency and peripheral eosinophil count or asthma control in children with asthma.
References
Akdis CA, Arkwright PD, Brüggen MC, Busse W, Gadina M, Guttman-Yassky E, et al. Type 2 immunity in the skin and lungs. Allergy. 2020 Jul;75(7):1582-1605. doi: 10.1111/all.14318.
Tuzlak S, Dejean AS, Iannacone M, Quintana FJ, Waisman A, Ginhoux F, et al. Repositioning TH cell polarization from single cytokines to complex help. Nat Immunol. 2021 Oct;22(10):1210-1217. doi: 10.1038/s41590-021-01009-w.
Tao Z, Zhu H, Zhang J, Huang Z, Xiang Z, Hong T. Recent advances of eosinophils and its correlated diseases. Front Public Health. 2022 Jul 25;10:954721. doi: 10.3389/fpubh.2022.954721.
Folci M, Ramponi G, Arcari I, Zumbo A, Brunetta E. Eosinophils as Major Player in Type 2 Inflammation: Autoimmunity and Beyond. Adv Exp Med Biol. 2021;1347:197-219. doi: 10.1007/5584_2021_640.
Huang Z, Nayak JV, Sun Y, Huang Q, Zhou B. Peripheral blood T-helper cells and eosinophil populations in patients with atopic and nonatopic chronic rhinosinusitis. Am J Rhinol Allergy. 2017 Jan 1;31(1):8-12. doi: 10.2500/ajra.2017.31.4405.
Tsuji K, Aoki A, Onodera A, Kiuchi M, Kokubo K, Morimoto Y, et al. Characterization of eosinophils and natural killer cells in nasal polyps and peripheral blood in eosinophilic chronic rhinosinusitis patients. Allergol Int. 2023 Apr;72(2):335-338. doi: 10.1016/j.alit.2022.11.009.
Papaioannou AI, Loukides S, Bakakos P. Identification of asthma phenotypes using blood cell count. EBioMedicine. 2022 Mar;77:103907. doi: 10.1016/j.ebiom.2022.103907.
Crespo-Lessmann A, Curto E, Mateus Medina EF, Palones E, Belda Soler A, Sánchez Maza S, et al. Characteristics of Induced-Sputum Inflammatory Phenotypes in Adults with Asthma: Predictors of Bronchial Eosinophilia. J Asthma Allergy. 2023 Jan 19;16:95-103. doi: 10.2147/JAA.S389402. Erratum in: J Asthma Allergy. 2023 Nov 20;16:1267-1268.
Chan R, RuiWen Kuo C, Lipworth B. Pragmatic Clinical Perspective on Biologics for Severe Refractory Type 2 Asthma. J Allergy Clin Immunol Pract. 2020 Nov-Dec;8(10):3363-3370. doi: 10.1016/j.jaip.2020.06.048.
Akenroye AT, Segal JB, Zhou G, Foer D, Li L, Alexander GC, et al. Comparative effectiveness of omalizumab, mepolizumab, and dupilumab in asthma: A target trial emulation. J Allergy Clin Immunol. 2023 May;151(5):1269-1276. doi: 10.1016/j.jaci.2023.01.020.
Ni S, Yuan Y, Kuang Y, Li X. Iron Metabolism and Immune Regulation. Front Immunol. 2022 Mar 23;13:816282. doi: 10.3389/fimmu.2022.816282.
Donker AE, van der Staaij H, Swinkels DW. The critical roles of iron during the journey from fetus to adolescent: Developmental aspects of iron homeostasis. Blood Rev. 2021 Nov;50:100866. doi: 10.1016/j.blre.2021.100866.
Drury KE, Schaeffer M, Silverberg JI. Association Between Atopic Disease and Anemia in US Children. JAMA Pediatr. 2016 Jan;170(1):29-34. doi: 10.1001/jamapediatrics.2015.3065.
Rhew K, Oh JM. Association between atopic disease and anemia in pediatrics: a cross-sectional study. BMC Pediatr. 2019 Nov 25;19(1):455. doi: 10.1186/s12887-019-1836-5.
Rhew K, Brown JD, Oh JM. Atopic Disease and Anemia in Korean Patients: Cross-Sectional Study with Propensity Score Analysis. Int J Environ Res Public Health. 2020 Mar 18;17(6):1978. doi: 10.3390/ijerph17061978.
Petje LM, Jensen SA, Szikora S, Sulzbacher M, Bartosik T, Pjevac P, et al. Functional iron-deficiency in women with allergic rhinitis is associated with symptoms after nasal provocation and lack of iron-sequestering microbes. Allergy. 2021 Sep;76(9):2882-2886. doi: 10.1111/all.14960.
Roth-Walter F, Afify SM, Pacios LF, Blokhuis BR, Redegeld F, Regner A, et al. Cow's milk protein β-lactoglobulin confers resilience against allergy by targeting complexed iron into immune cells. J Allergy Clin Immunol. 2021 Jan;147(1):321-334.e4. doi: 10.1016/j.jaci.2020.05.023.
Bartosik T, Jensen SA, Afify SM, Bianchini R, Hufnagl K, Hofstetter G, et al. Ameliorating Atopy by Compensating Micronutritional Deficiencies in Immune Cells: A Double-Blind Placebo-Controlled Pilot Study. J Allergy Clin Immunol Pract. 2022 Jul;10(7):1889-1902.e9. doi: 10.1016/j.jaip.2022.02.028.
Global Initiative for Asthma Global Strategy for Asthma Management and Prevention (2019). Available online at www.ginasthma.org. Accessed August 2023
Meltzer EO, Busse WW, Wenzel SE, Belozeroff V, Weng HH, Feng J, et al. Use of the Asthma Control Questionnaire to predict future risk of asthma exacerbation. J Allergy Clin Immunol. 2011 Jan;127(1):167-72. doi: 10.1016/j.jaci.2010.08.042.
von Elm E, Altman DG, Egger M, Pocock SJ, Gøtzsche PC, Vandenbroucke JP; STROBE Initiative. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies. Ann Intern Med. 2007 Oct 16;147(8):573-7. doi: 10.7326/0003-4819-147-8-200710160-00010. Erratum in: Ann Intern Med. 2008 Jan 15;148(2):168.
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Copyright (c) 2024 Amelia Licari, Mara De Amici, Fiorella Barocci, Maria De Filippo, Annalisa De Silvestri, Giorgia Testa, Martina Votto, Giorgio Ciprandi, Gian Luigi Marseglia
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