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Landzaat LJ, Emons JAM, Sonneveld LJH, Schreurs MWJ, Arends NJT. Early inhalant allergen sensitization at component level: an analysis in atopic Dutch children. Front Allergy 2023; 4:1173540. [PMID: 37470032 PMCID: PMC10352100 DOI: 10.3389/falgy.2023.1173540] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 06/07/2023] [Indexed: 07/21/2023] Open
Abstract
Background Allergic rhinitis is a common respiratory disease in children and sensitization to inhalant allergens plays a significant role in its development. However, limited knowledge exists regarding sensitization profiles of inhalant allergen components in atopic children, particularly in the very young individuals. Understanding these profiles could provide insights into the early development of allergic rhinitis. The objective of this cross-sectional retrospective study was to evaluate the IgE-sensitization profiles to multiple inhalant allergen components and their clinical relevance in Dutch atopic children, with specific focus on children under the age of 4 years. Methods A total of 243 atopic children were included in the study and sensitization profiles were analyzed using multiplex microarray analysis (ISAC). Clinical information was obtained from records of a pediatric allergy outpatient clinic between 2011 and 2020. Specific IgE responses to inhalation allergen components from five allergen sources (grass pollen, tree pollen, house dust mite, cat and dog), were examined. The study encompassed children of different age groups and compared those with and without symptoms. Results The results demonstrated that sensitization to inhalant allergen components was present in 92% of the cohort. Sensitization was already evident at a young age (87%), including infancy, with a rapid increase in prevalence after 1 year of age. House dust mite emerged as the most predominant sensitizing allergen in early childhood, followed by tree pollen in later years. Sensitization patterns were similar between symptomatic and asymptomatic children, although symptomatic children exhibited higher frequencies and values. The sensitization profiles in very young children were comparable to those of children across all age groups. Conclusion These findings highlight the presence of sensitization to inhalant allergen components and the early onset of allergic rhinitis before the age of 4, including infancy, in Dutch atopic children. Notable allergen molecules in Dutch atopic children under the age of 4 years include Bet v 1, Fel d 1, Der f 1, Der p 1, Der p 10 and Phl p 4, with house dust mite sensitization being the most common among Dutch infants. Moreover, the prevalence of sensitization to inhalant allergens in this Dutch cohort surpassed that of general European populations, emphasizing the importance of early assessment and management of allergic rhinitis in young atopic children.
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Affiliation(s)
- Lonneke J. Landzaat
- Division of Pediatric Respiratory Medicine and Allergology, Department of Pediatrics, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Joyce A. M. Emons
- Division of Pediatric Respiratory Medicine and Allergology, Department of Pediatrics, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Laura J. H. Sonneveld
- Division of Pediatric Respiratory Medicine and Allergology, Department of Pediatrics, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Marco W. J. Schreurs
- Laboratory Medical Immunology, Department of Immunology, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Nicolette J. T. Arends
- Division of Pediatric Respiratory Medicine and Allergology, Department of Pediatrics, Erasmus MC University Medical Center, Rotterdam, Netherlands
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Sonneveld LJH, Emons JAM, Arends NJT, Landzaat LJ, Veenbergen S, Schreurs MWJ. ALEX versus ISAC multiplex array in analyzing food allergy in atopic children. Clin Mol Allergy 2022; 20:10. [PMID: 36030246 PMCID: PMC9419344 DOI: 10.1186/s12948-022-00177-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 08/16/2022] [Indexed: 12/04/2022] Open
Abstract
ALEX multiplex array is a relatively new multiplex allergy test which analyses more than 120 allergen extracts and 170 molecular components. ISAC is the most used and studied multiplex array to date, offering 112 molecular components. In ten atopic children with multiple food allergies good agreement was observed between ALEX and ISAC sIgE results for nearly all shared food components. Presence of larger number of allergens in ALEX could help clinicians to improve personalized dietary advice. However more positive sensitizations with unknown clinical relevance were found by ALEX, potentially increasing clinical complexity. Pediatric allergists should be aware of this, especially in young atopic children with (severe) eczema who have not introduced all sorts of food yet.
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Affiliation(s)
- Laura J H Sonneveld
- Department of Pediatrics, Division of Respiratory Medicine and Allergology, Sophia Children Hospital, Erasmus MC University Medical Centre, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
| | - Joyce A M Emons
- Department of Pediatrics, Division of Respiratory Medicine and Allergology, Sophia Children Hospital, Erasmus MC University Medical Centre, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Nicolette J T Arends
- Department of Pediatrics, Division of Respiratory Medicine and Allergology, Sophia Children Hospital, Erasmus MC University Medical Centre, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Lonneke J Landzaat
- Department of Pediatrics, Division of Respiratory Medicine and Allergology, Sophia Children Hospital, Erasmus MC University Medical Centre, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Sharon Veenbergen
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC University Medical Centre, Rotterdam, The Netherlands
| | - Marco W J Schreurs
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC University Medical Centre, Rotterdam, The Netherlands
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Hammer SC, Sonneveld LJH, van de Kant KDG, Hendriks HJ, Heynens JW, Droog R, Dompeling E, Jöbsis Q. Introduction of a new paediatric asthma guideline: Effects on asthma control levels. Pediatr Allergy Immunol 2017; 28:266-272. [PMID: 28107572 DOI: 10.1111/pai.12697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/16/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND In 2008, a new national paediatric asthma management guideline based on the international Global Initiative for Asthma (GINA) guideline was launched in the Netherlands. We studied whether asthma control and treatment regimens improved after introduction of the guideline by comparing survey data before and after the guideline introduction. METHODS Two comparable groups of children (6-16 years) with asthma were included before (2004) and after (2013) the introduction of the guideline. Children, parents and paediatricians completed questionnaires about asthma symptoms, medication and healthcare use. Spirometry was performed. RESULTS Data of 209 patients were analysed. Level of asthma control did not improve between 2004 and 2013 with a proportion of (partly) controlled asthmatics of 51% in 2004 and 59% in 2013 (p = 0.28). In 2013, paediatricians characterized 76% of children as (partly) controlled, while 59% of children was (partly) controlled according to GINA criteria (p < 0.05). Step-down treatment in controlled patients was more applied by paediatricians in 2013 compared to 2004 (from 8 to 40%, p < 0.05). Step-up treatment in uncontrolled patients did not improve. CONCLUSIONS Asthma control did not improve after the introduction of the new guideline. Compared to 2004, an improvement was observed in step-down treatment in patients with controlled disease.
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Affiliation(s)
- S C Hammer
- Department of Paediatric Respiratory Medicine, Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| | - L J H Sonneveld
- Department of Paediatric Respiratory Medicine, Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| | - K D G van de Kant
- Department of Paediatric Respiratory Medicine, Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| | - H J Hendriks
- Department of Paediatrics, Vie Curi Hospital, Venlo, The Netherlands
| | - J W Heynens
- Department of Paediatrics, Orbis Medical Centre, Sittard, The Netherlands
| | - R Droog
- Department of Paediatrics, Elkerliek Hospital, Helmond, The Netherlands
| | - E Dompeling
- Department of Paediatric Respiratory Medicine, Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| | - Q Jöbsis
- Department of Paediatric Respiratory Medicine, Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
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Sonneveld LJH, Engelberts AC, van den Elzen APM. [Anorectal pain in children: rare or rarely recognised?]. Ned Tijdschr Geneeskd 2016; 160:A9449. [PMID: 26813012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Anorectal pain is a common symptom, often as part of functional gastrointestinal disorders. Children seldom present with this complaint. Proctalgia fugax and chronic proctalgia are both anorectal pain syndromes but differ in duration and frequency of episodes and in pain characteristics. No research has been conducted on anorectal pain syndromes in children. We present two patients. Firstly, an 8-year-old girl who suffered from anorectal cramps. We found no underlying cause apart from constipation. The symptoms disappeared spontaneously. The second concerned an 8-year-old boy who presented with recurrent anorectal cramps. He was diagnosed with celiac disease. Anorectal dysfunction and visceral hypersensitivity have been described in adult celiac patients. Symptoms of anorectal pain in children are rare probably because it often remains unrecognised. Noninvasive diagnostic methods and interventions are preferred in paediatric medicine. Screening for celiac disease in children with anorectal pain episodes should be considered.
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Bakker B, Sonneveld LJH, Woltering MC, Bikker H, Kant SG. A Girl With Beckwith-Wiedemann Syndrome and Pseudohypoparathyroidism Type 1B Due to Multiple Imprinting Defects. J Clin Endocrinol Metab 2015; 100:3963-6. [PMID: 26367199 DOI: 10.1210/jc.2015-2260] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Several patients with Beckwith-Wiedemann Syndrome (BWS) with multiple imprinting defects found by genetic analysis have been described. However, only two cases have been described with both genetic and clinical signs and symptoms of multiple diseases caused by imprinting defects. CASE DESCRIPTION The girl in this case presented at the age of 6 months with morbid obesity (body mass index, +7.5 SDS) and a large umbilical hernia. Genetic analysis showed BWS (hypomethylation of the KCNQ1OT1 gene). Calcium homeostasis was normal, and she had no signs of Albright hereditary osteodystrophy. At the age of 10 years, she presented with fatigue, and laboratory analyses showed marked hypocalcemia with signs of PTH resistance, but without evidence for Albright hereditary osteodystrophy, thus suggesting pseudohypoparathyroidism type 1B. Consistent with this diagnosis, methylation analysis of the GNAS complex revealed hypomethylation (about 20%) of the GNAS exon 1A, NESPAS, and GNASXL loci and hypermethylation (100% methylation) of the NESP locus. CONCLUSIONS Imprinting defects at several different loci can occur in some patients, thus causing multiple different diseases. Symptoms of pseudohypoparathyroidism type 1B may be absent at diagnosis of BWS, yet prolonged subclinical hypocalcemia and/or hyperphosphatemia can have negative consequences (eg, intracerebral calcifications, myocardial dysfunction). We therefore suggest that patients with an imprinting disorder should be monitored for elevations in PTH, and epigenetic analysis of the GNAS complex locus should be considered.
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Affiliation(s)
- Boudewijn Bakker
- Department of Pediatrics (B.B., L.J.H.S., M.C.W.), Reinier de Graaf Hospital, 2625 AD Delft, The Netherlands; Department of Clinical Genetics (H.B.), Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; and Department of Clinical Genetics (S.G.K.), Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Laura J H Sonneveld
- Department of Pediatrics (B.B., L.J.H.S., M.C.W.), Reinier de Graaf Hospital, 2625 AD Delft, The Netherlands; Department of Clinical Genetics (H.B.), Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; and Department of Clinical Genetics (S.G.K.), Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - M Claire Woltering
- Department of Pediatrics (B.B., L.J.H.S., M.C.W.), Reinier de Graaf Hospital, 2625 AD Delft, The Netherlands; Department of Clinical Genetics (H.B.), Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; and Department of Clinical Genetics (S.G.K.), Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Hennie Bikker
- Department of Pediatrics (B.B., L.J.H.S., M.C.W.), Reinier de Graaf Hospital, 2625 AD Delft, The Netherlands; Department of Clinical Genetics (H.B.), Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; and Department of Clinical Genetics (S.G.K.), Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Sarina G Kant
- Department of Pediatrics (B.B., L.J.H.S., M.C.W.), Reinier de Graaf Hospital, 2625 AD Delft, The Netherlands; Department of Clinical Genetics (H.B.), Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; and Department of Clinical Genetics (S.G.K.), Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
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