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Aud-in S, Juprasong Y, Pinkaew B, Talek K, Tantilipikorn P, Songnuan W. Incidence of grass and weed sensitization in Bangkok, Thailand: a clinical study. Front Public Health 2024; 12:1301095. [PMID: 38605873 PMCID: PMC11007029 DOI: 10.3389/fpubh.2024.1301095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 03/15/2024] [Indexed: 04/13/2024] Open
Abstract
Background Allergic rhinitis (AR) is a prevalent public health concern globally, significantly impacting quality of life. In Thailand, the prevalence of AR is rising, with grass and weed pollen identified as primary outdoor triggers. Objectives This study aimed to (1) assess patterns of pollen sensitization in Thai AR patients and (2) investigate correlations between demographics/clinical data and SPT results. Methods A total of 121 individuals aged ≥18 years with clinically diagnosed AR were recruited. Skin prick testing (SPT) was performed using a panel of commonly encountered tropical grass and weed pollen extracts. SPT wheal sizes and clinical symptom scores were recorded. Correlations between SPT outcomes and symptom scores were analyzed. Results Among the participants, 104 (85.95%) exhibited positive SPT reactions to at least one pollen type. Nutsedge (76/121), para grass (57/121), and Bermuda grass (48/121) were the most frequently identified allergens. Hurricane grass elicited the strongest reaction, evidenced by the highest average wheal size (6.2 mm). Poly-sensitization was observed in 77 (63.6%) of the SPT-positive individuals, with most cases involving two different pollen extracts (35/77). Notably, AR severity positively correlated with both average wheal size and the number of positive SPT tests. Conclusion This study highlights nutsedge, para grass, and Bermuda grass as major allergenic pollen sources for Thai AR patients. Including nutsedge, hurricane grass, and careless weed in clinical SPT panels is recommended for improved diagnostic accuracy. Additionally, the positive correlation between AR severity and pollen reaction strength emphasizes the importance of implementing patient education and avoidance strategies.
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Affiliation(s)
- Sirirat Aud-in
- Department of Plant Science, Faculty of Science, Mahidol University, Bangkok, Thailand
- Systems Biology of Diseases Research Unit, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Yotin Juprasong
- Systems Biology of Diseases Research Unit, Faculty of Science, Mahidol University, Bangkok, Thailand
- Graduate Program in Toxicology, Faculty of Science, Mahidol University, Bangkok, Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), Office of the Permanent Secretary (OPS), Ministry of Higher Education, Science, Research and Innovation (MHESI), Bangkok, Thailand
- Department of Biochemistry, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
| | - Bannapuch Pinkaew
- Department of Otorhinolaryngology, Division of Rhinology and Allergy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Kanokporn Talek
- Department of Otorhinolaryngology, Division of Rhinology and Allergy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Pongsakorn Tantilipikorn
- Department of Otorhinolaryngology, Division of Rhinology and Allergy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Center of Research Excellence in Allergy and Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Wisuwat Songnuan
- Department of Plant Science, Faculty of Science, Mahidol University, Bangkok, Thailand
- Systems Biology of Diseases Research Unit, Faculty of Science, Mahidol University, Bangkok, Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), Office of the Permanent Secretary (OPS), Ministry of Higher Education, Science, Research and Innovation (MHESI), Bangkok, Thailand
- Center of Research Excellence in Allergy and Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Klimek L, Brehler R, Mösges R, Demoly P, Mullol J, Wang DY, O'Hehir RE, Didier A, Kopp M, Bos C, Karagiannis E. Update about Oralair® as a treatment for grass pollen allergic rhinitis. Hum Vaccin Immunother 2022; 18:2066424. [PMID: 35704772 PMCID: PMC9302518 DOI: 10.1080/21645515.2022.2066424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Sublingual immunotherapy (SLIT) is a well-tolerated, safe, and effective approach to treating allergic rhinitis (AR). Oralair® is a five-grass pollen SLIT tablet containing natural pollen allergens from five of the major grass species responsible for seasonal AR due to grass pollen allergy. Recommended use is in a pre-coseasonal regimen, starting daily treatment approximately 4 months before the start of the pollen season, with treatment then continued daily throughout the season; treatment should continue for 3–5 y. Clinical efficacy and safety of Oralair® in patients with grass pollen-induced AR has been demonstrated in a comprehensive clinical development program of randomized controlled trials. Effectiveness has been substantiated in subsequent observational studies with sustained efficacy following treatment cessation and a favorable level of adherence, quality of life, benefit, and satisfaction for the patients. Supportive evidence for a benefit in reducing the risk or delaying the development of allergic asthma is emerging.
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Affiliation(s)
- L Klimek
- Center for Rhinology and Allergology, Wiesbaden, Germany
| | - R Brehler
- Department of Skin Diseases, Outpatient Clinic for Allergology, Occupational Dermatology and Environmental Medicine, Münster University Hospital, Münster, Germany
| | - R Mösges
- Institute of Medical Statistics and Computational Biology (IMSB), Medical Faculty of the University of Cologne, Cologne, Germany.,CRI - Clinical Research International Ltd, Hamburg, Germany.,ClinCompetence Cologne GmbH, Cologne, Germany
| | - P Demoly
- Division of Allergy, Department of Pulmonology, Hôpital Arnaud de Villeneuve, University Hospital of Montpellier, Montpellier, France.,Université, Equipe EPAR - IPLESPUMR-S 1136 INSERM-Sorbonne, Paris, France
| | - J Mullol
- Rhinology Unit & Smell Clinic, ENT Department, Hospital Clínic; Clinical & Experimental Respiratory Immunoallergy, IDIBAPS, CIBERES, University of Barcelona, Barcelona, Spain
| | - D Y Wang
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - R E O'Hehir
- Department of Allergy, Immunology and Respiratory Medicine, Central Clinical School, Monash University, Melbourne, Australia
| | - A Didier
- Pôle des Voies Respiratoires, Hôpital Larrey, CHU de Toulouse and Centre de Physiopathologie Toulouse Purpan, INSERM U1043, CNRS UMR 5282, Université Toulouse III, Toulouse, France
| | - M Kopp
- Clinic of Pediatric and Adolescent Medicine, Airway Research Center North (ARCN), Member of the German Lung Center (DZL), Lübeck University, Lübeck, Germany
| | - C Bos
- Global Medical Affairs Department, Stallergenes Greer, Antony, France
| | - E Karagiannis
- Global Medical Affairs Department, Stallergenes Greer, Antony, France
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