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Kleinbeck S, Wolkoff P. Exposure limits for indoor volatile substances concerning the general population: The role of population-based differences in sensory irritation of the eyes and airways for assessment factors. Arch Toxicol 2024; 98:617-662. [PMID: 38243103 PMCID: PMC10861400 DOI: 10.1007/s00204-023-03642-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/16/2023] [Indexed: 01/21/2024]
Abstract
Assessment factors (AFs) are essential in the derivation of occupational exposure limits (OELs) and indoor air quality guidelines. The factors shall accommodate differences in sensitivity between subgroups, i.e., workers, healthy and sick people, and occupational exposure versus life-long exposure for the general population. Derivation of AFs itself is based on empirical knowledge from human and animal exposure studies with immanent uncertainty in the empirical evidence due to knowledge gaps and experimental reliability. Sensory irritation in the eyes and airways constitute about 30-40% of OELs and is an abundant symptom in non-industrial buildings characterizing the indoor air quality and general health. Intraspecies differences between subgroups of the general population should be quantified for the proposal of more 'empirical' based AFs. In this review, we focus on sensitivity differences in sensory irritation about gender, age, health status, and vulnerability in people, based solely on human exposure studies. Females are more sensitive to sensory irritation than males for few volatile substances. Older people appear less sensitive than younger ones. However, impaired defense mechanisms may increase vulnerability in the long term. Empirical evidence of sensory irritation in children is rare and limited to children down to the age of six years. Studies of the nervous system in children compared to adults suggest a higher sensitivity in children; however, some defense mechanisms are more efficient in children than in adults. Usually, exposure studies are performed with healthy subjects. Exposure studies with sick people are not representative due to the deselection of subjects with moderate or severe eye or airway diseases, which likely underestimates the sensitivity of the group of people with diseases. Psychological characterization like personality factors shows that concentrations of volatile substances far below their sensory irritation thresholds may influence the sensitivity, in part biased by odor perception. Thus, the protection of people with extreme personality traits is not feasible by an AF and other mitigation strategies are required. The available empirical evidence comprising age, lifestyle, and health supports an AF of not greater than up to 2 for sensory irritation. Further, general AFs are discouraged for derivation, rather substance-specific derivation of AFs is recommended based on the risk assessment of empirical data, deposition in the airways depending on the substance's water solubility and compensating for knowledge and experimental gaps. Modeling of sensory irritation would be a better 'empirical' starting point for derivation of AFs for children, older, and sick people, as human exposure studies are not possible (due to ethical reasons) or not generalizable (due to self-selection). Dedicated AFs may be derived for environments where dry air, high room temperature, and visually demanding tasks aggravate the eyes or airways than for places in which the workload is balanced, while indoor playgrounds might need other AFs due to physical workload and affected groups of the general population.
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Affiliation(s)
- Stefan Kleinbeck
- Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany.
| | - Peder Wolkoff
- National Research Centre for the Working Environment, Copenhagen, Denmark
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2
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Tajbakhsh Z, Jalbert I, Stapleton F, Alghamdi A, Gray PE, Briggs N, Altavilla B, Mobeen R, Golebiowski B. Dendritiform immune cells with reduced antigen-capture capacity persist in the cornea during the asymptomatic phase of allergic conjunctivitis. Eye (Lond) 2023; 37:2768-2775. [PMID: 36747108 PMCID: PMC10482935 DOI: 10.1038/s41433-023-02413-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 12/13/2022] [Accepted: 01/20/2023] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Increased density and altered morphology of dendritic cells (DC) in the cornea and conjunctiva occur during active allergic conjunctivitis. This study investigated whether inflammation (characterised by altered DC density and morphology) persists during the symptom-free phase of allergic conjunctivitis. METHODS Twenty participants (age 43.3 ± 14.3 years, 55% female) assessed during their active (symptomatic) phase of allergic conjunctivitis were re-examined during the asymptomatic phase. Ocular allergy symptoms and signs were evaluated during both phases, and five ocular surface locations (corneal centre, inferior whorl, corneal periphery, corneal limbus, and bulbar conjunctiva) were examined using in vivo confocal microscopy (HRT III). DC were counted manually, and their morphology was assessed for cell body size, presence of dendrites, presence of long dendrites and presence of thick dendrites using a grading system. Mixed model analysis (DC density) and non-parametric tests (DC morphology) were used to examine differences between phases. RESULTS DC density at corneal locations did not change between the active and asymptomatic phases (p ≥ 0.22). However, corneal DC body size was smaller and fewer DC presented with long dendrites during the asymptomatic phase (p ≤ 0.02). In contrast, at the bulbar conjunctiva, DC density was reduced during the asymptomatic phase compared to the active phase (p = 0.01), but there were no changes in DC morphology. CONCLUSIONS Dendritiform immune cell numbers persist in the cornea during the symptom-free phase of allergic conjunctivitis, whereas conjunctival DC appear to return to a baseline state. The morphology of these persisting corneal DC suggests their antigen-capture capacity is reduced during the asymptomatic phase.
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Affiliation(s)
- Zahra Tajbakhsh
- School of Optometry and Vision Science, UNSW, Sydney, Australia.
| | | | - Fiona Stapleton
- School of Optometry and Vision Science, UNSW, Sydney, Australia
| | - Ali Alghamdi
- School of Optometry and Vision Science, UNSW, Sydney, Australia
| | - Paul E Gray
- Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Sydney, Australia
| | - Nancy Briggs
- Stats Central, Mark Wainwright Analytical Centre, UNSW, Sydney, Australia
| | - Betina Altavilla
- Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Sydney, Australia
| | - Rabia Mobeen
- School of Optometry and Vision Science, UNSW, Sydney, Australia
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Marogna M, Ciprandi G. A multicomponent nutraceutical (<i>Perilla frutescens</i>, quercetin, and vitamin D3) as add-on therapy in patients with grass pollen-induced mild persistent asthma and rhinitis. JOURNAL OF BIOLOGICAL RESEARCH - BOLLETTINO DELLA SOCIETÀ ITALIANA DI BIOLOGIA SPERIMENTALE 2023; 96. [DOI: 10.4081/jbr.2023.11146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2023]
Abstract
Background Allergic asthma is an inflammatory disease characterized by a type 2 immune response. Pollens are a common cause of seasonal asthma. Allergic rhinitis (AR) frequently associates with asthma. The treatment usually aims at controlling inflammation and relieving symptoms. Inhaled corticosteroids are the most effective controller and short-acting b2-agonists (SABA) as a reliever for asthma. Oral antihistamines and nasal corticosteroids (NC) are the mainstays for AR. A multicomponent nutraceutical containing perilla, quercetin, and vitamin D3 significantly prevented AR exacerbations in children. Thus, the current study explored the add-on use in adult patients with mild persistent asthma and AR due to grass pollen allergy.
Methods The treatment lasted three months. Asthma and AR symptoms, asthma control test, spirometry, nasal eosinophils, and use of rescue medications (SABA and NC) were evaluated in the previous grass season and throughout the treatment. All patients were treated with ciclesonide (320 mcg/day) and cetirizine (10 mg/day). Patients were randomly stratified into Group A, taking the nutraceutical, and Group B using the predetermined therapy.
Results 90 patients (13-59 years old) were enrolled, and 84 completed the trial. Group A significantly improved all outcomes (p<0.001). Group B did not achieve an improvement in AR symptoms, nasal eosinophils, and nasal steroid use. The intergroup analysis showed that Group A patients experienced less severe bronchial symptoms (- 32 %), AR symptoms (- 39 %), better asthma control (+ 38 %), higher FEV1 (+ 10 %), lower SABA (- 30 %) and NC use (- 41 %), and nasal eosinophils count (- 35 %) than Group B (p<0.0001 for all).
No clinically relevant adverse events occurred.
Conclusion A multicomponent nutraceutical containing perilla, quercetin, and vitamin D3, as an add-on treatment to inhaled ciclesonide and cetirizine, provided a clinically relevant benefit in patients with mild persistent asthma and AR due to grass pollen uncontrolled by standard therapy.
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Chen XJ, Liu C, Zhang S, Zhang LF, Meng W, Zhang X, Sun M, Zhang Y, Wang RZ, Yao CF. ILC3-like ILC2 subset increases in minimal persistent inflammation after acute type II inflammation of allergic rhinitis and inhibited by Biminkang: Plasticity of ILC2 in minimal persistent inflammation. J Leukoc Biol 2022; 112:1445-1455. [PMID: 36161355 DOI: 10.1002/jlb.3ma0822-436rr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 08/09/2022] [Accepted: 08/16/2022] [Indexed: 01/04/2023] Open
Abstract
Minimal persistent inflammation (MPI), the local inflammation that occurs after an acute type II immune response in patients with allergic rhinitis (AR), is responsible for airway hyperreactivity and the recurrence of AR. Innate lymphoid cells (ILCs) play a crucial role in mucosal immune homeostasis, but the changes of ILC subsets in the MPI stage remain unclear. In this study, the levels of ILC-secreting cytokines in nasal lavages were analyzed from 19 AR patients and 8 healthy volunteers. AR and MPI model mice were established to study the ILC subsets. The results showed that IL-17A was significantly increased in nasal lavage of AR patients in the MPI stage by MSD technology. When compared with the AR model mice, the frequency of IL-13+ ILC2 in the nasal mucosa and lungs decreased, while IL-5+ ILC2 remain high in MPI model mice. A part of the IL-5+ ILC2 subset displayed ILC3-like characteristics with elevated RORγt, IL-17A and IL-23R expression. Especially, these ILC3-like ILC2 exhibited up-regulation of GATA3+ RORγt+ were increased in MPI model mice. After the treatment of Biminkang, the frequencies of IL-5+ ILC2, IL-17A+ ILC3, and GATA3+ RORγt+ ILC3-like ILC2 were significantly reduced, and IL-23R expression was also decreased on ILC3-like-ILC2 subset. These results suggested that the elevated IL-17A in the MPI stage has been related to or at least partly due to the increased of ILC3-like ILC2. Biminkang could effectively decrease IL-17A+ ILC3 and inhibit ILC3-like ILC2 subset in the MPI stage. Biminkang is effective in administrating MPI by regulating airway ILC homeostasis.
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Affiliation(s)
- Xiang-Jing Chen
- Department of Otorhinolaryngology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Cheng Liu
- Department of Immunology, College of Clinical and Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Shan Zhang
- Department of Immunology, College of Clinical and Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Li-Feng Zhang
- Department of Otorhinolaryngology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Wei Meng
- Department of Otorhinolaryngology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xin Zhang
- Department of Otorhinolaryngology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Meng Sun
- Department of Otorhinolaryngology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yue Zhang
- Department of Immunology, College of Clinical and Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Ren-Zhong Wang
- Department of Otorhinolaryngology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Cheng-Fang Yao
- Department of Immunology, College of Clinical and Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
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Genes related to allergen exposure in allergic rhinitis: a gene-chip-based study in a mouse model. BMC Med Genomics 2022; 15:243. [PMID: 36434595 PMCID: PMC9701046 DOI: 10.1186/s12920-022-01389-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 11/03/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND The typical clinical symptoms of allergic rhinitis (AR) are known to be associated with allergen exposure; however, the underlying mechanisms are not fully understood. We wanted to gain a comprehensive view of the molecular mechanisms related to allergen exposure in a well-controlled mouse model of AR. METHODS An OVA-induced AR model was developed. Two hours and 4 weeks after the last OVA challenge, AR symptoms and local immune responses were assessed. At the same time, differentially expressed genes (DEG) in nasal mucosa were identified by gene expression microarray and further analyzed by bioinformatics methods. Verification of DEG was done by quantitative RT-PCR and immunohistochemistry. RESULTS The number of nasal rubbings and sneezes, serum OVA-specific IgE concentrations, and the number of neutrophils and eosinophils in the nasal mucosa were significantly increased at 2 h and decreased at 4 weeks after the last allergen challenge compared to controls. A total of 2119 DEG were identified, and their expression dynamics were clustered into 8 profiles. Enriched functions in Profile 5, which had a similar trend to clinical features, were mainly related to inflammatory and immune response to environmental factors, eosinophils and neutrophils chemotaxis, and cell migration. Gene co-expression Network for genes from profile 5 identified BCL3, NFKB2, SOCS3, and CD53 having a higher degree. Profile 6 showed persistence of inflammatory and immune response at 4 weeks after the last allergen challenge. Olfactory and coagulation functions were enriched mainly in profiles with downward trends. CONCLUSIONS A wide range of genes with sequential cooperative action were identified to be associated with allergen exposure in AR. BCL3 may be the most vital in symptoms manifestation. Moreover, some inflammatory responses persisted for a period after allergen exposure, supporting a new treatment strategy of targeting inflammation out of season. This study may contribute to a better understanding of AR pathogenesis and provide potential therapeutic targets for AR patients.
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Abstract
INTRODUCTION The numerous links between allergic rhinitis and asthma have been extensively explored in the last two decades, gaining great concern within the scientific community. These two conditions frequently coexist in the same patient and share numerous pathogenetic and pathophysiological mechanisms. AREAS COVERED We reviewed major pathophysiological, epidemiological, and clinical links between allergic rhinitis and asthma. We also provided a comprehensive discussion of allergic rhinitis treatment according to current guidelines, with a particular focus on the relevance of allergic rhinitis therapies in patients with comorbid asthma. EXPERT OPINION We believe that there are several unmet needs for our patients, however, there are promising advances forecasted for the future. Although allergic rhinitis is a recognized risk factor for asthma, a proper asthma detection and prevention plan in allergic rhinitis patients is not available. Allergen immunotherapy (AIT) represents a promising preventive strategy and may deserve an earlier positioning in allergic rhinitis management. A multidisciplinary approach should characterize the journey of patients with respiratory allergies, with an adequate referral to specialized Allergy/Asthma centers. Molecular Allergy Diagnosis may provide support for optimal AIT use. Finally, a possible evolution of biological treatment can be envisaged, mainly if biosimilars decrease such therapies' costs.
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Hoang MP, Chitsuthipakorn W, Seresirikachorn K, Snidvongs K. As-needed intranasal corticosteroid spray for allergic rhinitis: a systematic review and meta-analysis. Rhinology 2022; 60:242-251. [PMID: 35379997 DOI: 10.4193/rhin21.355] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND As-needed intranasal corticosteroid spray (INCS) is commonly used by patients with allergic rhinitis (AR) who have suboptimal symptom control. This systematic review aimed to assess the effectiveness of as-needed INCS for treating AR. METHODOLOGY Systematic searches for randomized controlled trials studying the effects of as-needed INCS compared to regular INCS, as-needed antihistamine, or placebo were performed. Primary outcomes were total nasal symptom score (TNSS) and disease-specific quality of life (DSQoL). RESULTS Eight studies (882 participants) met the criteria. Regular use of INCS showed greater improvements than as-needed INCS in TNSS, DSQoL, nasal peak inspiratory flow, sneezing, and nasal congestion scores with small effect sizes. There were no differences between regular and as-needed INCS usage for ocular symptoms, symptom-free days, nasal itching, and rhinorrhea scores. As-needed INCS was superior to as-needed antihistamine and placebo with medium effect sizes. There were no differences in risk of adverse events between the groups in all three comparisons. CONCLUSIONS Regular use of INCS improved total nasal symptoms score and DSQoL better than as-needed INCS. However, as-needed INCS improved TNSS better than as-needed antihistamine and placebo. The effects of as-needed INCS were closer to regular INCS usage than to placebo or as-needed AH usage.
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Affiliation(s)
- M P Hoang
- Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Endoscopic Nasal and Sinus Surgery Excellent Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.,Department of Otolaryngology, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - W Chitsuthipakorn
- Center of Excellence in Otolaryngology-Head and Neck Surgery, Rajavithi Hospital, Bangkok, Thailand.,Department of Otolaryngology, College of Medicine, Rangsit University, Bangkok, Thailand
| | - K Seresirikachorn
- Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Endoscopic Nasal and Sinus Surgery Excellent Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - K Snidvongs
- Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Endoscopic Nasal and Sinus Surgery Excellent Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
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8
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Zhang Y, Xi L, Gao Y, Huang Y, Cao F, Xiong W, Wang C, Zhang L. Omalizumab is effective in the preseasonal treatment of seasonal allergic rhinitis. Clin Transl Allergy 2022; 12:e12094. [PMID: 35024137 PMCID: PMC8727318 DOI: 10.1002/clt2.12094] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 11/26/2021] [Accepted: 12/12/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND To date no study has evaluated the efficacy of preseasonal omalizumab therapy with cost effective dose and at appropriate time point compared with standard medication in seasonal allergic rhinitis (SAR) patients. METHODS This was a prospective randomized controlled open-label single-centre trial. 32 SAR patients were randomized to receive a single injection of omalizumab 300-mg approximately two weeks before start of the pollen period (PP) or medication therapy. All patients completed daily questionnaires; recording symptoms, medication use and quality of life (QoL) throughout the observation period. The primary efficacy parameter was the mean daily Combined Symptom and Medication Score (CSMS). RESULTS Preseasonal omalizumab significantly reduced the changes of mean daily CSMS of nose during the PP (p < 0.001), peak pollen period (PPP) and PP after PPP (PPP-PP) (p = 0.002) and Post-PP (p = 0.009) compared to standard medication. The proportion of allergy symptoms-relieving medication-free days during PPP-PP was also significantly higher in preseasonal omalizumab-treated group (76.2(16.7-98.8))% than in medication-treated group (19.0(0-71.4))% (p = 0.030). Omalizumab could achieve the same nasal symptom control during the entire pollen season and better eye symptoms relieving results in PP (p = 0.046) and PPP-PP (p = 0.004) than medication treatment. Significantly greater improvement in QoL was also obtained with omalizumab-pretreatment during the PP (p = 0.037) and PPP-PP (p = 0.004). CONCLUSIONS Administration of a single injection of 300 mg omalizumab two weeks before start of the pollen season achieves better overall control of symptoms and QoL, with significantly reduced allergy symptoms-relieving medication usage, compared with standard pharmacotherapy in SAR patients.
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Affiliation(s)
- Yuan Zhang
- Department of AllergyBeijing TongRen HospitalCapital Medical UniversityBeijingChina
- Beijing Key Laboratory of Nasal DiseasesBeijing Institute of OtolaryngologyBeijingChina
- Research Unit of Diagnosis and Treatment of Chronic Nasal DiseasesChinese Academy of Medical SciencesBeijingChina
| | - Lin Xi
- Department of AllergyBeijing TongRen HospitalCapital Medical UniversityBeijingChina
- Beijing Key Laboratory of Nasal DiseasesBeijing Institute of OtolaryngologyBeijingChina
- Research Unit of Diagnosis and Treatment of Chronic Nasal DiseasesChinese Academy of Medical SciencesBeijingChina
| | - Yunbo Gao
- Department of Otolaryngology Head and Neck SurgeryBeijing TongRen HospitalCapital Medical UniversityBeijingChina
| | - Yanran Huang
- Department of Otolaryngology Head and Neck SurgeryBeijing TongRen HospitalCapital Medical UniversityBeijingChina
| | - Feifei Cao
- Department of AllergyBeijing TongRen HospitalCapital Medical UniversityBeijingChina
| | - Wei Xiong
- Department of AllergyBeijing TongRen HospitalCapital Medical UniversityBeijingChina
| | - Chengshuo Wang
- Department of AllergyBeijing TongRen HospitalCapital Medical UniversityBeijingChina
- Beijing Key Laboratory of Nasal DiseasesBeijing Institute of OtolaryngologyBeijingChina
- Research Unit of Diagnosis and Treatment of Chronic Nasal DiseasesChinese Academy of Medical SciencesBeijingChina
- Department of Otolaryngology Head and Neck SurgeryBeijing TongRen HospitalCapital Medical UniversityBeijingChina
| | - Luo Zhang
- Department of AllergyBeijing TongRen HospitalCapital Medical UniversityBeijingChina
- Beijing Key Laboratory of Nasal DiseasesBeijing Institute of OtolaryngologyBeijingChina
- Research Unit of Diagnosis and Treatment of Chronic Nasal DiseasesChinese Academy of Medical SciencesBeijingChina
- Department of Otolaryngology Head and Neck SurgeryBeijing TongRen HospitalCapital Medical UniversityBeijingChina
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Gelardi M, Trecca EMC, de Lillo E, Cassano M. Nasal cytology and uncommon findings in allergic rhinitis. Diagn Cytopathol 2021; 50:32-33. [PMID: 34783457 DOI: 10.1002/dc.24905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/05/2021] [Indexed: 11/06/2022]
Affiliation(s)
- Matteo Gelardi
- Department of Otolaryngology- Head and Neck Surgery, University Hospital of Foggia, Foggia, Italy
| | - Eleonora M C Trecca
- Department of Otolaryngology- Head and Neck Surgery, University Hospital of Foggia, Foggia, Italy.,Department of Maxillofacial Surgery and Otolaryngology, IRCCS Casa Sollievo della Sofferenza, Foggia, Italy
| | - Enrico de Lillo
- Department of Soil, Plant and Food Sciences, Entomological and Zoological Section, University of Bari Aldo Moro, Bari, Italy
| | - Michele Cassano
- Department of Otolaryngology- Head and Neck Surgery, University Hospital of Foggia, Foggia, Italy
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Upper and Lower Respiratory Signs and Symptoms in Workers Occupationally Exposed to Flour Dust. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17197075. [PMID: 32992629 PMCID: PMC7579018 DOI: 10.3390/ijerph17197075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/22/2020] [Accepted: 09/25/2020] [Indexed: 12/17/2022]
Abstract
A group of 142 bakers was studied in order to investigate the relationship between higher/lower respiratory signs/symptoms and inflammation biomarkers and occupational exposure to flour dust. A complete upper and lower respiratory tract evaluation was performed. Seven percent of bakers complained of lower respiratory symptoms, while 22% of them complained of upper respiratory symptoms. Fifty five percent of the bakers were allergic, and 37.1% showed sensitization to occupational allergens. Abnormal spirometries were found in 15% of bakers, while fractional exhaled nitric oxide (FeNO) was above the normal reference in 24.5% of them. Moreover, 23.8% of bakers were found to be hyposmic. Population mean peak nasal inspiratory flow (PNIF) was in the normal range even if almost all the workers suffered from neutrophilic rhinitis at nasal cytology with the number of nasal neutrophils increasing with the increase of the duration of exposure to flour dust (p = 0.03). PNIF and FEV1 (forced expiratory volume in the 1st second) showed a positive correlation (p = 0.03; r = 0.19). The Tiffeneau index decreased with the increase of dust (p = 0.017). A similar result was obtained once we divided our population into smokers and non-smokers (p = 0.021). Long-term exposure to bakery dusts can lead to a status of minimal nasal inflammation and allergy.
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11
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Varricchio A, La Mantia I, Brunese FP, Ciprandi G. Inflammation, infection, and allergy of upper airways: new insights from national and real-world studies. Ital J Pediatr 2020; 46:18. [PMID: 32039733 PMCID: PMC7008537 DOI: 10.1186/s13052-020-0782-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 01/29/2020] [Indexed: 12/24/2022] Open
Abstract
The upper airways (UA) should be considered as a functional unit. Current functional anatomy divides URT in three, mutually dependent, "junction boxes": i) the ostio-meatal complex (OMC), ii) the spheno-ethmoidal recess (SER), and iii) the rhinopharynx (RP). Correct ventilation and effective mucociliary clearance of these sites significantly affect the healthy physiology of the entire respiratory system. The OMC, SER, and RP obstruction is the first pathogenic step in the inflammatory/infectious cascade of UA disorders. The inflammation of the respiratory mucosa is the main pathogenic factor for airway obstruction. Moreover, bacterial biofilm (a strategy modality of bacterial survival) is an important local cause of systemic antibiotic ineffectiveness, recurrent infections, and antibiotic resistance. Health microbiota guarantees UA wellness; on the contrary, dysbiosis promotes and worsens UA infections. Allergy, namely type 2 inflammation, is a common cause of UA obstruction such as promoting in turn infections. Fiberoptic endoscopy is a mandatory diagnostic tool in clinical practice. Nasal cytology, mainly concerning flow cytometry, allows defining rhinitis phenotypes so allowing a precision medicine approach. Several conventional therapeutic approaches are available, but efficacy and safety should be ever properly considered before the prescription. Also, complementary medicine plays a fruitful role in the management of UA diseases. National and real-world studies are reported and discussed as they may be useful in daily clinical practice.
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Affiliation(s)
- Attilio Varricchio
- UOSD Video-Endoscopia delle VAS, P.O. San Gennaro - ASL Napoli 1-centro, Naples, Italy
| | | | | | - Giorgio Ciprandi
- Allergy Clinic, Casa di Cura Villa Montallegro, Via Boselli 5, 16146, Genoa, Italy.
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Ciprandi G, Silvestri M. Standardization of nasal cytologic testing in the workup of allergic rhinitis. Ann Allergy Asthma Immunol 2019; 123:213-216. [PMID: 31100466 DOI: 10.1016/j.anai.2019.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 05/02/2019] [Accepted: 05/06/2019] [Indexed: 11/25/2022]
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Suh MJ, Park JA, Chang SW, Kim JH, Lee KH, Hong SC, Lee HS, Kang JW. Chronological changes in rhinitis symptoms present in school-aged children with allergic sensitization. PLoS One 2019; 14:e0210840. [PMID: 30653594 PMCID: PMC6336313 DOI: 10.1371/journal.pone.0210840] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/02/2019] [Indexed: 11/30/2022] Open
Abstract
Introduction It is difficult to accurately predict the natural course of allergic rhinitis (AR), because it is affected by a wide variety of environmental influences, as well as genetic predisposition. Considering the high prevalence of allergic rhinitis in children and adolescents, caregivers should be given appropriate information regarding the disease course. This study aimed to understand the prognosis of allergic rhinitis by examining the relationship between allergic sensitization and rhinitis symptoms during this developmental period. Methods This cross-sectional study included 1069 children aged 9–16 years from the Korean International Study of Asthma and Allergies in Childhood Survey database who had completed health questionnaires, and for whom skin prick test results were available. Data were collected during May 2016. The distribution of sensitization and allergic symptoms was compared by age groups (elementary, middle, and high school). Data were analyzed using linear-by-linear analysis. Results Sensitization to at least one tested allergen differed by age (59.2%, 58.3%, 68.2%, in elementary, middle, and high school students, respectively; p = 0.025), and seasonal allergen sensitization (35.0%, 37.1%, 53.9%, respectively) increased with age (p < 0.001). Conversely, the proportion of rhinitis symptoms among sensitized children decreased as age increased (58.80%, 52.90%, 49.70%, respectively; p = 0.047). However, the rate of non-allergic rhinitis was age-independent. Conclusion With increasing age during childhood and adolescence, symptomatic allergic rhinitis decreases; thus, subclinical allergic rhinitis increases. This suggests that the symptoms of later-sensitized children are less clearly manifested, or that the symptoms reduce as previously sensitized children mature. This should be clarified further in a longitudinal study.
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Affiliation(s)
- Michelle J. Suh
- Department of Otorhinolaryngology, Jeju National University School of Medicine, Jeju, South Korea
| | - Jin A. Park
- Department of Otorhinolaryngology, Jeju National University School of Medicine, Jeju, South Korea
| | - Suk Won Chang
- Department of Otorhinolaryngology, Jeju National University School of Medicine, Jeju, South Korea
| | - Jeong Hong Kim
- Department of Otorhinolaryngology, Jeju National University School of Medicine, Jeju, South Korea
- The Environmental Health Center (Atopic Dermatitis and Allergic Rhinitis), Jeju National University, Jeju, South Korea
| | - Keun-Hwa Lee
- The Environmental Health Center (Atopic Dermatitis and Allergic Rhinitis), Jeju National University, Jeju, South Korea
| | - Seong-Chul Hong
- The Environmental Health Center (Atopic Dermatitis and Allergic Rhinitis), Jeju National University, Jeju, South Korea
| | - Hye-Sook Lee
- The Environmental Health Center (Atopic Dermatitis and Allergic Rhinitis), Jeju National University, Jeju, South Korea
| | - Ju Wan Kang
- Department of Otorhinolaryngology, Jeju National University School of Medicine, Jeju, South Korea
- The Environmental Health Center (Atopic Dermatitis and Allergic Rhinitis), Jeju National University, Jeju, South Korea
- * E-mail:
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14
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Nakamura S, Tsunoda S, Sakaida H, Masuda S, Said AS, Takeuchi K. Analysis of factors associated with cedar pollen sensitization and development of pollinosis in a young Japanese adult population. Allergol Int 2019; 68:39-45. [PMID: 29908674 DOI: 10.1016/j.alit.2018.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/02/2018] [Accepted: 05/13/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Genetic and environmental factors are proposed to be involved in cedar pollen allergy sensitization and onset. The impact of these factors will provide key information for the prevention of cedar pollen sensitization and allergy onset, which we investigated in this cross-sectional study. METHODS Subjects were 382 young adult volunteers who completed a self-administered questionnaire on self-reported subjective symptoms of pollinosis, physician-diagnosed pollinosis, and background factors. We also measured their serum IgE antibody titers specific for cedar, cypress, and mites. Factors associated with subjective symptoms, physician diagnosis, and the three specific antigens were determined using both univariate and multivariate analyses. RESULTS Sensitization to cedar, cypress, and mites, defined as specific IgE levels of class 1 or above, was found in 78.8%, 64.4%, and 56.0% of subjects, respectively. The prevalence of cedar pollinosis was 41.2% based on subjective symptoms and 22.2% based on physician diagnosis. Factors associated with increased cedar pollen sensitization were mite sensitization, comorbid allergic rhinitis, and family history of cedar pollinosis. Risk-reducing factors for cedar pollen sensitization were keeping a cat, number of common colds, and hours of sleep. Risk-increasing factors for both subjective pollinosis symptoms and physician-diagnosed pollinosis were comorbid allergic rhinitis and family history of cedar pollinosis. CONCLUSIONS Sensitization to cedar pollen in this population was extremely high. Both common and distinct factors were associated with sensitization to pollen and with the development of pollinosis. The distinct factors were associated with sensitization to cedar and cypress antigens.
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15
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Ciprandi G, Puccinelli P, Incorvaia C, Masieri S. Parietaria Allergy: An Intriguing Challenge for the Allergist. MEDICINA (KAUNAS, LITHUANIA) 2018; 54:E106. [PMID: 30544607 PMCID: PMC6306946 DOI: 10.3390/medicina54060106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/05/2018] [Accepted: 12/05/2018] [Indexed: 12/21/2022]
Abstract
Parietaria pollen is the most important cause of pollen allergies in the Mediterranean area, as Parietaria is widespread in this region. Many issues are associated with Parietaria allergy, including the duration of the pollen season (many doctors in fact believe that it lasts throughout the year), pollen load (which seems to be increasing over time), the impact of age (on IgE production and symptom severity), inflammatory changes (after pollen exposure), and the choice of allergen immunotherapy (AIT). In addition, molecular diagnostics allows for the defining of a correct diagnosis, differentiating between mere sensitization and true allergy. This review considers these topics and will hopefully help the allergist in clinical practice. Parietaria allergy is an intriguing challenge for the allergist in clinical practice, but it may be adequately managed by knowing the peculiarities of respective territories and the clinical characteristics of each patient.
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Affiliation(s)
| | - Paola Puccinelli
- Scientific, Pharmacovigilance and Regulatory Department Stallergenes-Greer, 20100 Milan, Italy.
| | | | - Simonetta Masieri
- Department of Otorhinolaryngology, Sapienza University, 00100 Rome, Italy.
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16
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Endotyping of non-allergic, allergic and mixed rhinitis patients using a broad panel of biomarkers in nasal secretions. PLoS One 2018; 13:e0200366. [PMID: 30048449 PMCID: PMC6061980 DOI: 10.1371/journal.pone.0200366] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 06/25/2018] [Indexed: 12/21/2022] Open
Abstract
Background Endotyping chronic rhinitis has proven hardest for the subgroup of non-allergic rhinitis (NAR) patients. While IgE-related inflammation is typical for allergic rhinitis (AR), no markers have been found that can be seen to positively identify NAR. A further complication is that AR and NAR might co-exist in patients with mixed rhinitis. As previous studies have considered only a limited number of inflammatory mediators, we wanted to explore whether a wider panel of mediators could help us refine the endotyping in chronic rhinitis patients. Objective To endotype chronic rhinitis, and non-allergic rhinitis in particular, with help of molecular or cellular markers. Method In this study we included 23 NAR patients without allergen sensitizations and with persistent rhinitis symptoms, 22 pollen sensitized rhinitis patients with seasonal symptoms, 21 mixed rhinitis patients with pollen-related symptoms and persistent symptoms outside of the pollen season, and 23 healthy controls without any symptoms. Nasal secretions were collected outside of pollen season and differences between the endotypes were assessed for a broad range of inflammatory mediators and growths factors using a multiplex ELISA. Results Although we were able to identify two new nasal secretion makers (IL-12 and HGF) that were low in mixed and AR patients versus NAR and healthy controls, the most intriguing outcome is that despite investigating 29 general inflammatory mediators and growth factors no clear profile of non-allergic or mixed rhinitis could be found. Conclusion Classical inflammatory markers are not able to differentiate between non-allergic or mixed rhinitis patients and healthy controls.
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17
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Heffler E, Landi M, Caruso C, Fichera S, Gani F, Guida G, Liuzzo MT, Pistorio MP, Pizzimenti S, Riccio AM, Seccia V, Ferrando M, Malvezzi L, Passalacqua G, Gelardi M. Nasal cytology: Methodology with application to clinical practice and research. Clin Exp Allergy 2018; 48:1092-1106. [PMID: 29904978 DOI: 10.1111/cea.13207] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nasal cytology is an easy, cheap, non-invasive and point-of-care method to assess nasal inflammation and disease-specific cellular features. By means of nasal cytology, it is possible to distinguish between different inflammatory patterns that are typically associated with specific diseases (ie, allergic and non-allergic rhinitis). Its use is particularly relevant when other clinical information, such as signs, symptoms, time-course and allergic sensitizations, is not enough to recognize which of the different rhinitis phenotypes is involved; for example, it is only by means of nasal cytology that it is possible to distinguish, among the non-allergic rhinitis, those characterized by eosinophilic (NARES), mast cellular (NARMA), mixed eosinophilic-mast cellular (NARESMA) or neutrophilic (NARNE) inflammation. Despite its clinical usefulness, cheapness, non-invasiveness and easiness, nasal cytology is still underused and this is at least partially due to the fact that, as far as now, there is not a consensus or an official recommendation on its methodological issues. We here review the scientific literature about nasal cytology, giving recommendations on how to perform and interpret nasal cytology.
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Affiliation(s)
- E Heffler
- Department of Biomedical Sciences, Humanitas University, Milano, Italy.,Personalized Medicine, Asthma and Allergy Unit, Humanitas Clinical and Research Center, Humanitas University, Milano, Italy
| | - M Landi
- Institute of Biomedicine and Molecular Immunology, National Research Council of Italy, Palermo, Italy.,Paediatric National Healthcare System, Torino, Italy
| | - C Caruso
- Allergy Unit, Fondazione Policlinico Gemelli, Presidio Columbus, Rome, Italy
| | - S Fichera
- Respiratory Medicine and Allergy, University of Catania, Catania, Italy
| | - F Gani
- Respiratory Allergy, A.O.U. San Luigi, Orbassano, Torino, Italy
| | - G Guida
- Allergy and Lung Physiology, AO Santa Croce e Carle, Cuneo, Italy
| | - M T Liuzzo
- Respiratory Medicine and Allergy, University of Catania, Catania, Italy
| | - M P Pistorio
- Respiratory Medicine and Allergy, University of Catania, Catania, Italy
| | - S Pizzimenti
- Respiratory Medicine Unit, National Health System, ASL Città di Torino, Torino, Italy
| | - A M Riccio
- Allergy and Respiratory Diseases, IRCCS Policlinico San Martino, University of Genoa, Genova, Italy
| | - V Seccia
- 1st Otorhinolaryngology Unit, Department of Medical and Surgical Pathology, Pisa University Hospital, Pisa, Italy
| | - M Ferrando
- Department of Biomedical Sciences, Humanitas University, Milano, Italy.,Allergy and Respiratory Diseases, IRCCS Policlinico San Martino, University of Genoa, Genova, Italy
| | - L Malvezzi
- Department of Otolaryngology, Humanitas Clinical and Research Center, Milano, Italy
| | - G Passalacqua
- Allergy and Respiratory Diseases, IRCCS Policlinico San Martino, University of Genoa, Genova, Italy
| | - M Gelardi
- Section of Otolaryngology, Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari, Bari, Italy
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18
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Fan XL, Zeng QX, Li X, Li CL, Xu ZB, Deng XQ, Shi J, Chen D, Zheng SG, Fu QL. Induced pluripotent stem cell-derived mesenchymal stem cells activate quiescent T cells and elevate regulatory T cell response via NF-κB in allergic rhinitis patients. Stem Cell Res Ther 2018; 9:170. [PMID: 29921316 PMCID: PMC6010028 DOI: 10.1186/s13287-018-0896-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/25/2018] [Accepted: 05/02/2018] [Indexed: 01/15/2023] Open
Abstract
Background It has been demonstrated previously that induced pluripotent stem cell (iPSC)-derived mesenchymal stem cells (MSCs) have immunosuppressive effects on activated T cells. However, the effects of iPSC-MSCs on quiescent T cells are still unknown. The aim of this study was to identify the immunomodulatory role of iPSC-MSCs on resting peripheral blood mononuclear cells (PBMCs) from allergic rhinitis (AR) patients. Methods PBMCs were cocultured with iPSC-MSCs without any stimulation, following which lymphocyte proliferation, activation of T cells, TH1/TH2 and regulatory T (Treg) cell differentiation, and Treg cell function were analyzed. The roles of soluble factors and cell–cell contact were examined to investigate the mechanisms involved. Results iPSC-MSCs promoted the proliferation of resting lymphocytes, activated CD4+ and CD8+ T cells, and upregulated and activated Treg cells without any additional stimulation. In addition, iPSC-MSCs balanced biased TH1/TH2 cytokine levels. Cell–cell contact was confirmed to be a possible mechanism involved. NF-κB was identified to play an important role in the immunomodulatory effects of iPSC-MSCs on quiescent T cells. Conclusions iPSC-MSCs activate quiescent T cells and elevate regulatory T-cell response in AR patients, suggesting different immunomodulatory functions of iPSC-MSCs according to the phases of diseases. Therefore, iPSC-MSCs are a potential therapeutic candidate for treating allergic airway inflammation. Electronic supplementary material The online version of this article (10.1186/s13287-018-0896-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xing-Liang Fan
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Qing-Xiang Zeng
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Xin Li
- Department of Emergency, Guangdong General Hospital, Guangdong Academy of Medical Science, 106 Zhongshan Road II, Guangzhou, 510080, China
| | - Cheng-Lin Li
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Zhi-Bin Xu
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Xue-Quan Deng
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Jianbo Shi
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Dong Chen
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Song Guo Zheng
- Department of Clinical Immunology, The Third Affiliated Hospital, Sun Yat-sen University, 600 Tianhe Road, Guangzhou, 510630, China. .,Division of Rheumatology, Milton S. Hershey Medical Center at Penn State University, 500 University Dr. Hershey, PA, 17033, USA.
| | - Qing-Ling Fu
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, Guangdong, 510080, People's Republic of China.
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19
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Wise SK, Lin SY, Toskala E, Orlandi RR, Akdis CA, Alt JA, Azar A, Baroody FM, Bachert C, Canonica GW, Chacko T, Cingi C, Ciprandi G, Corey J, Cox LS, Creticos PS, Custovic A, Damask C, DeConde A, DelGaudio JM, Ebert CS, Eloy JA, Flanagan CE, Fokkens WJ, Franzese C, Gosepath J, Halderman A, Hamilton RG, Hoffman HJ, Hohlfeld JM, Houser SM, Hwang PH, Incorvaia C, Jarvis D, Khalid AN, Kilpeläinen M, Kingdom TT, Krouse H, Larenas-Linnemann D, Laury AM, Lee SE, Levy JM, Luong AU, Marple BF, McCoul ED, McMains KC, Melén E, Mims JW, Moscato G, Mullol J, Nelson HS, Patadia M, Pawankar R, Pfaar O, Platt MP, Reisacher W, Rondón C, Rudmik L, Ryan M, Sastre J, Schlosser RJ, Settipane RA, Sharma HP, Sheikh A, Smith TL, Tantilipikorn P, Tversky JR, Veling MC, Wang DY, Westman M, Wickman M, Zacharek M. International Consensus Statement on Allergy and Rhinology: Allergic Rhinitis. Int Forum Allergy Rhinol 2018; 8:108-352. [PMID: 29438602 PMCID: PMC7286723 DOI: 10.1002/alr.22073] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 12/01/2017] [Accepted: 12/01/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Critical examination of the quality and validity of available allergic rhinitis (AR) literature is necessary to improve understanding and to appropriately translate this knowledge to clinical care of the AR patient. To evaluate the existing AR literature, international multidisciplinary experts with an interest in AR have produced the International Consensus statement on Allergy and Rhinology: Allergic Rhinitis (ICAR:AR). METHODS Using previously described methodology, specific topics were developed relating to AR. Each topic was assigned a literature review, evidence-based review (EBR), or evidence-based review with recommendations (EBRR) format as dictated by available evidence and purpose within the ICAR:AR document. Following iterative reviews of each topic, the ICAR:AR document was synthesized and reviewed by all authors for consensus. RESULTS The ICAR:AR document addresses over 100 individual topics related to AR, including diagnosis, pathophysiology, epidemiology, disease burden, risk factors for the development of AR, allergy testing modalities, treatment, and other conditions/comorbidities associated with AR. CONCLUSION This critical review of the AR literature has identified several strengths; providers can be confident that treatment decisions are supported by rigorous studies. However, there are also substantial gaps in the AR literature. These knowledge gaps should be viewed as opportunities for improvement, as often the things that we teach and the medicine that we practice are not based on the best quality evidence. This document aims to highlight the strengths and weaknesses of the AR literature to identify areas for future AR research and improved understanding.
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Affiliation(s)
| | | | | | | | - Cezmi A. Akdis
- Allergy/Asthma, Swiss Institute of Allergy and Asthma Research, Switzerland
| | | | - Antoine Azar
- Allergy/Immunology, Johns Hopkins University, USA
| | | | | | | | | | - Cemal Cingi
- Otolaryngology, Eskisehir Osmangazi University, Turkey
| | | | | | | | | | | | | | - Adam DeConde
- Otolaryngology, University of California San Diego, USA
| | | | | | | | | | | | | | - Jan Gosepath
- Otorhinolaryngology, Helios Kliniken Wiesbaden, Germany
| | | | | | | | - Jens M. Hohlfeld
- Respiratory Medicine, Hannover Medical School, Airway Research Fraunhofer Institute for Toxicology and Experimental Medicine, German Center for Lung Research, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | - Amber U. Luong
- Otolaryngology, McGovern Medical School at the University of Texas Health Science Center Houston, USA
| | | | | | | | - Erik Melén
- Pediatric Allergy, Karolinska Institutet, Sweden
| | | | | | - Joaquim Mullol
- Otolaryngology, Universitat de Barcelona, Hospital Clinic, IDIBAPS, Spain
| | | | | | | | - Oliver Pfaar
- Rhinology/Allergy, Medical Faculty Mannheim, Heidelberg University, Center for Rhinology and Allergology, Wiesbaden, Germany
| | | | | | - Carmen Rondón
- Allergy, Regional University Hospital of Málaga, Spain
| | - Luke Rudmik
- Otolaryngology, University of Calgary, Canada
| | - Matthew Ryan
- Otolaryngology, University of Texas Southwestern, USA
| | - Joaquin Sastre
- Allergology, Hospital Universitario Fundacion Jiminez Diaz, Spain
| | | | | | - Hemant P. Sharma
- Allergy/Immunology, Children's National Health System, George Washington University School of Medicine, USA
| | | | | | | | | | | | - De Yun Wang
- Otolaryngology, National University of Singapore, Singapore
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20
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Xu J, Gao L, Yao H, Zhang R, Liu N, Wang L, Liu E, Dai J, Fu Z. Characteristics of lower airway inflammatory changes in the minimal persistent inflammation of allergic rhinitis in mice. J Asthma 2017; 55:1187-1196. [PMID: 29278941 DOI: 10.1080/02770903.2017.1410831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE This study aims to establish an experimental mouse model of minimal persistent inflammation (MPI), observe the features of inflammation and hyper-responsiveness of the upper/lower airways, and explore the relationship between inflammation and hyper-responsiveness in the upper/lower airways. METHODS Sixty-four female BALB/c mice were randomly divided into four groups: allergic rhinitis (AR) group as positive control, MPI group, negative control group and blank control group. Mice were given high and low-concentrated ovalbumin solution after basic and intensive sensitization to establish AR model and MPI model. Nasal mucosa and lung tissues were stained to observe eosinophil infiltration, goblet cell hyperplasia, and expression of intercellular adhesion molecule 1 (ICAM-1). Airway hyper-responsiveness was assessed. Levels of specific immunoglobulin E (sIgE), interleukin (IL)-4 and IL-5 in peripheral blood, nasal lavage fluid (NLF), and bronchoalveolar lavage fluid (BALF) were detected by Enzyme-linked immunosorbent assay. RESULTS The eosinophil infiltration and expression of ICAM-1 on nasal mucosa and in lung tissues in the AR and MPI groups were significantly elevated compared to control groups. Goblet cells count increased only in the nasal mucosa and not in lung tissues. Eosinophil and neutrophil count of NLF and BALF in the AR and MPI groups increased significantly compared to control groups. Level of IL-4 did not increase significantly, but sIgE and IL-5 did. CONCLUSIONS Mice in the MPI status exhibits lower airway inflammation and hyper-responsiveness with increase in eosinophil count, goblet cells, ICAM-1, IL-4, and IL-5. These results provide further evidence for the importance of MPI of AR in lower airway diseases.
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Affiliation(s)
- Jie Xu
- a Pediatrics Research Institute , Ministry of Education Key Laboratory of Child Development and Disorders , Children's Hospital of Chongqing Medical University , Chongqing , China.,b Department of Otorhinolaryngology , Ministry of Education Key Laboratory of Development and Disorders , Key Laboratory of Pediatrics in Chongqing , Children's Hospital , Chongqing Medical University , Chongqing , China.,c Chongqing Key Laboratory of Pediatrics , Chongqing , China
| | - Li Gao
- a Pediatrics Research Institute , Ministry of Education Key Laboratory of Child Development and Disorders , Children's Hospital of Chongqing Medical University , Chongqing , China.,b Department of Otorhinolaryngology , Ministry of Education Key Laboratory of Development and Disorders , Key Laboratory of Pediatrics in Chongqing , Children's Hospital , Chongqing Medical University , Chongqing , China
| | - Hongbing Yao
- a Pediatrics Research Institute , Ministry of Education Key Laboratory of Child Development and Disorders , Children's Hospital of Chongqing Medical University , Chongqing , China.,b Department of Otorhinolaryngology , Ministry of Education Key Laboratory of Development and Disorders , Key Laboratory of Pediatrics in Chongqing , Children's Hospital , Chongqing Medical University , Chongqing , China.,c Chongqing Key Laboratory of Pediatrics , Chongqing , China
| | - Rong Zhang
- a Pediatrics Research Institute , Ministry of Education Key Laboratory of Child Development and Disorders , Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Na Liu
- a Pediatrics Research Institute , Ministry of Education Key Laboratory of Child Development and Disorders , Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Lijia Wang
- a Pediatrics Research Institute , Ministry of Education Key Laboratory of Child Development and Disorders , Children's Hospital of Chongqing Medical University , Chongqing , China
| | - Enmei Liu
- a Pediatrics Research Institute , Ministry of Education Key Laboratory of Child Development and Disorders , Children's Hospital of Chongqing Medical University , Chongqing , China.,d Department of Respiratory Medicine , Ministry of Education Key Laboratory of Development and Disorders , Key Laboratory of Pediatrics in Chongqing , Children's Hospital , Chongqing Medical University , Chongqing , China
| | - Jihong Dai
- a Pediatrics Research Institute , Ministry of Education Key Laboratory of Child Development and Disorders , Children's Hospital of Chongqing Medical University , Chongqing , China.,d Department of Respiratory Medicine , Ministry of Education Key Laboratory of Development and Disorders , Key Laboratory of Pediatrics in Chongqing , Children's Hospital , Chongqing Medical University , Chongqing , China
| | - Zhou Fu
- a Pediatrics Research Institute , Ministry of Education Key Laboratory of Child Development and Disorders , Children's Hospital of Chongqing Medical University , Chongqing , China.,c Chongqing Key Laboratory of Pediatrics , Chongqing , China.,d Department of Respiratory Medicine , Ministry of Education Key Laboratory of Development and Disorders , Key Laboratory of Pediatrics in Chongqing , Children's Hospital , Chongqing Medical University , Chongqing , China
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Gelardi M, Iannuzzi L, Quaranta N, Landi M, Passalacqua G. NASAL cytology: practical aspects and clinical relevance. Clin Exp Allergy 2017; 46:785-92. [PMID: 27009397 DOI: 10.1111/cea.12730] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Nasal cytology is a simple and safe diagnostic procedure that allows to assess the normal and pathological aspects of the nasal mucosa, by identifying and counting the cell types and their morphology. It can be easily performed by a nasal scraping followed by May-Grunwald-Giemsa staining and optical microscopy reading. This procedure allows to identify the normal cells (ciliated and mucinous), the inflammatory cells (lymphocytes, neutrophils, eosinophils, mast cells), bacteria, or fungal hyphae/spores. Apart from the normal cell population, some specific cytological patterns can be of help in discriminating among various diseases. Viral infections, allergic rhinitis, vasomotor rhinitis and overlapping forms can be easily identified. According to the predominant cell type, various entities can be defined (named as NARES, NARESMA, NARMA). This implies a more detailed knowledge and assessment of the disease that can integrate the standard diagnostic procedures. Nasal cytology also represents a useful research tool for diagnosis and therapy.
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Affiliation(s)
- M Gelardi
- Section of Otolaryngology, Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari, Bari, Italy
| | - L Iannuzzi
- Section of Otolaryngology, Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari, Bari, Italy
| | - N Quaranta
- Section of Otolaryngology, Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari, Bari, Italy
| | - M Landi
- National Pediatric Healthcare System, Turin, Italy.,Unit Research of Pediatric Pulmonology and Allergy, Institute of Biomedicine and Molecular Immunology (IBIM), National Research Council, Palermo, Italy
| | - G Passalacqua
- Allergy and Respiratory Diseases, IRCCS San Martino-IST-University of Genoa, Genoa, Italy
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22
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Min HJ, Song H, Choi SY, Kim TH, Cho HJ, Yoon JH, Kim CH. Th2 cytokines differentially regulate psoriasin expression in human nasal epithelia. Am J Rhinol Allergy 2015; 28:449-53. [PMID: 25514480 DOI: 10.2500/ajra.2014.28.4087] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND Psoriasin is known to be expressed in diverse organs, where it exerts antimicrobial activity. Psoriasin is also involved in the local host defense mechanism against pathogens. We hypothesized that allergy-related T-helper cell type 2 (Th2) cytokines may regulate the expression of psoriasin. METHODS We treated normal human nasal epithelial (NHNE) cells with IL-4 or IL-13. Using human nasal tissues, we compared the expression level of psoriasin. We performed real-time polymerase chain reaction and Western blot assays using NHNE cells. Immunohistochemical staining and Western blot assays were performed with human nasal tissues. Furthermore, we studied the antimicrobial activity of nasal secretions from normal and allergic rhinitis patients. RESULTS IL-13 markedly down-regulated psoriasin expression at the gene and protein levels in NHNE cells, and it also decreased the amount of psoriasin protein that was secreted into the extracellular compartment in NHNE cells. IL-4 had no statistically significant effect. Results from immunohistochemical staining and Western blot assays showed that psoriasin expression was decreased in allergic rhinitis patients compared with control subjects. Nasal secretions of allergic rhinitis patients exhibited decreased antimicrobial activity compared with control subjects. CONCLUSION We found that Th2 cytokines regulated psoriasin expression in NHNE cells, and psoriasin expression was decreased in allergic rhinitis patients compared with control subjects. The decreased expression of psoriasin may be related to the reduction in antimicrobial capacity of nasal secretions under allergic conditions, resulting in an increase in susceptibility to viruses or bacterial infections.
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Affiliation(s)
- Hyun Jin Min
- Departmenrt of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea
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Does the type of rhinitis influence development of otitis media with effusion in children? Curr Allergy Asthma Rep 2014; 14:472. [PMID: 25183363 DOI: 10.1007/s11882-014-0472-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Otitis media with effusion (OME) is characterized by the presence of fluid in the middle ear cavity behind an intact eardrum and is considered a multifactorial condition with Eustachian tube dysfunction as the underlying pathophysiologic condition. One of the most debated causes of OME is allergy, in particular allergic rhinitis. The aim of this paper is to review the role of rhinitis in the development of OME and in particular the role of both allergic (AR) and non-allergic rhinitis (NAR). Most of the recent literature confirms the role of AR in the development of OME, while there are few reports on the role of NAR. In non-allergic children affected by obstructive adenoid hypertrophy, the presence of mast cells in the nasal smear was associated with a high risk of developing a chronic OME.
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Świebocka EM, Siergiejko P, Rapiejko P, Siergiejko Z. Long-term intense exposure to grass pollen can mask positive effects of allergenic immunotherapy on non-specific bronchial hyperresponsiveness. Arch Med Sci 2014; 10:711-6. [PMID: 25276155 PMCID: PMC4175771 DOI: 10.5114/aoms.2014.44861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 04/16/2012] [Accepted: 05/11/2012] [Indexed: 12/26/2022] Open
Abstract
INTRODUCTION There are many potential factors that can modulate bronchial reactivity, including exposure to allergens, viral infections, and medications. The aim of this study was to analyze the effect of grass pollination intensity on the bronchial reactivity in seasonal allergic rhinitis (SAR) patients subjected to subcutaneous allergenic immunotherapy (SCIT). MATERIAL AND METHODS This study, performed between 2005 and 2008, included 41 patients with confirmed sensitivity to grass pollens and predominating symptoms of SAR, randomly assigned to desensitization by pre-seasonal or maintenance SCIT. Bronchial provocation challenge with histamine was performed before the onset of immunotherapy, and repeated three times after each pollen season covered by this study. Bronchial reactivity was analyzed with regard to grass pollination intensity in 2005-2008 (air concentration of grass pollen grains, seasonal number of days when air concentration of grass pollen reached at least 20 or 50 grains per 1 m(3)). RESULTS After 3 years of SCIT, a significant decrease in bronchial responsiveness was observed in the analyzed group as confirmed by an increase in PC20 FEV1 histamine values (p = 0.001). An inverse tendency was observed after 2 years of SCIT, however. This second year of SCIT corresponded to the 2007 season, when a significantly higher number of days with at least 50 grains of pollen per 1 m(3) of air was recorded. CONCLUSIONS FLUCTUATIONS IN POLLINATION INTENSITY OBSERVED DURING CONSECUTIVE YEARS OF IMMUNOTHERAPY CAN INFLUENCE BRONCHIAL REACTIVITY IN PATIENTS SUBJECTED TO SCIT (ISRCTN REGISTER: ISRCTN 86562422).
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Affiliation(s)
- Ewa M. Świebocka
- University Children Hospital, Pediatrics, Gastroenterology and Allergology Department, Medical University of Bialystok, Bialystok, Poland
| | - Piotr Siergiejko
- University Hospital, Internal Medicine and Rheumatology Department, Medical University of Bialystok, Bialystok, Poland
| | - Piotr Rapiejko
- Military Institute of Medicine, ORL Department, Warsaw, Poland
| | - Zenon Siergiejko
- Respiratory System Diagnostic and Bronchoscopy Department, Medical University of Bialystok, Bialystok, Poland
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Ciebiada M, Kasztalska K, Gorska-Ciebiada M, Górski P. ZAP70 expression in regulatory T cells in allergic rhinitis: effect of immunotherapy. Clin Exp Allergy 2013; 43:752-61. [DOI: 10.1111/cea.12124] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2011] [Revised: 02/24/2013] [Accepted: 02/27/2013] [Indexed: 11/29/2022]
Affiliation(s)
- M. Ciebiada
- Department of Pneumonology and Allergy; Medical University of Lodz; Lodz; Poland
| | - K. Kasztalska
- Department of Pneumonology and Allergy; Medical University of Lodz; Lodz; Poland
| | - M. Gorska-Ciebiada
- Department of Internal Medicine and Diabetology; Medical University of Lodz; Lodz; Poland
| | - P. Górski
- Department of Pneumonology and Allergy; Medical University of Lodz; Lodz; Poland
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Li C, Cheung CL, Cheung TT, Samaranayake NR, Cheung BMY. Hay fever and hypertension in the US adult population. Clin Exp Hypertens 2013; 36:206-10. [DOI: 10.3109/10641963.2013.804545] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Witwer KW, Buzás EI, Bemis LT, Bora A, Lässer C, Lötvall J, Nolte-'t Hoen EN, Piper MG, Sivaraman S, Skog J, Théry C, Wauben MH, Hochberg F. Standardization of sample collection, isolation and analysis methods in extracellular vesicle research. J Extracell Vesicles 2013; 2:20360. [PMID: 24009894 PMCID: PMC3760646 DOI: 10.3402/jev.v2i0.20360] [Citation(s) in RCA: 1654] [Impact Index Per Article: 150.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Revised: 04/05/2013] [Accepted: 04/11/2013] [Indexed: 12/13/2022] Open
Abstract
The emergence of publications on extracellular RNA (exRNA) and extracellular vesicles (EV) has highlighted the potential of these molecules and vehicles as biomarkers of disease and therapeutic targets. These findings have created a paradigm shift, most prominently in the field of oncology, prompting expanded interest in the field and dedication of funds for EV research. At the same time, understanding of EV subtypes, biogenesis, cargo and mechanisms of shuttling remains incomplete. The techniques that can be harnessed to address the many gaps in our current knowledge were the subject of a special workshop of the International Society for Extracellular Vesicles (ISEV) in New York City in October 2012. As part of the “ISEV Research Seminar: Analysis and Function of RNA in Extracellular Vesicles (evRNA)”, 6 round-table discussions were held to provide an evidence-based framework for isolation and analysis of EV, purification and analysis of associated RNA molecules, and molecular engineering of EV for therapeutic intervention. This article arises from the discussion of EV isolation and analysis at that meeting. The conclusions of the round table are supplemented with a review of published materials and our experience. Controversies and outstanding questions are identified that may inform future research and funding priorities. While we emphasize the need for standardization of specimen handling, appropriate normative controls, and isolation and analysis techniques to facilitate comparison of results, we also recognize that continual development and evaluation of techniques will be necessary as new knowledge is amassed. On many points, consensus has not yet been achieved and must be built through the reporting of well-controlled experiments.
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Affiliation(s)
- Kenneth W Witwer
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, MD, USA
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The most common aeroallergens in a tropical region in Southwestern Iran. World Allergy Organ J 2013; 6:7. [PMID: 23663517 PMCID: PMC3651228 DOI: 10.1186/1939-4551-6-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Accepted: 03/19/2013] [Indexed: 11/12/2022] Open
Abstract
Background Respiratory allergies are the most important public health issues in the world. They are caused by aeroallergens which play great role in pathogenesis of respiratory allergic diseases. Methods The current study was conducted to evaluate the prevalence of positive skin test for various aeroallergens among allergic patients in Ahvaz, southwest Iran. 299 participants with allergic rhinitis (seasonal or perennial) were selected. Skin prick test using twenty three common allergen extracts was performed on all patients. Results The overall frequency of sensitization to any allergen was 85.6%. In outdoor allergens the most prevalent aeroallergen category was weeds (89%) followed by tree and grasses, and in indoor allergens, mites (43%) were the most prevalent aeroallergen. The mean and median numbers of positive test reactions among those with positive test responses were 11.5 and 13.0, respectively. 84% of patients were poly-sensitised and about 50% of them were sensitised to more than twelve different allergens. Conclusion The results of the study revealed that prevalence of the skin prick reactivity to weed pollens is significant in southwest Iran and multiple sensitizations were common.
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Early interventional treatment with intranasal corticosteroids compared with postonset treatment in pollinosis. Ann Allergy Asthma Immunol 2012. [PMID: 23176888 DOI: 10.1016/j.anai.2012.08.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND The usefulness of early interventional treatment (EIT) with intranasal corticosteroids (INSs) compared with postonset treatment (POT) has not been clarified. OBJECTIVES To study the efficacy and safety of EIT with INSs compared with POT and placebo in Japanese cedar/cypress pollinosis. METHODS We designed a 3-armed, double-blinded, randomized, placebo-controlled trial. Patients received mometasone furoate nasal spray (EIT group: n = 25), placebo (n = 25), or 4 weeks of placebo followed by 8 weeks of mometasone (POT group: n = 25) for a 12-week period starting on February 1, 2011. The primary end point was the comparison of the total nasal symptom score (TNSS) among the 3 groups. Total ocular symptom score (TOSS), total naso-ocular symptom score (TSS), Allergic Rhinitis and Its Impact (ARIA) on Asthma classification, and safety were the main secondary end points. RESULTS The placebo and POT groups, but not the EIT group, had a significant exacerbation of TNSS and TOSS soon after the start of pollen counts being high on consecutive days. The 12-week mean TSS in the EIT group (score, 2.3) was significantly lower than in the placebo (5.0; P < .01) and POT (3.9; P = .03) groups. All patients in the placebo and POT groups were classified as having persistent rhinitis, whereas 80% of the EIT group met the ARIA classification criteria (P = .03). The quality-of-life score and nasal eosinophil cationic protein levels were lower in the EIT and POT groups compared with the placebo group. Daytime sleepiness, smell disturbance, and the mean dose of loratadine taken as the rescue medication were similar. Treatment with mometasone was well tolerated. CONCLUSION EIT with INSs is superior to POT in controlling pollinosis.
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Gelardi M, Luigi Marseglia G, Licari A, Landi M, Dell'Albani I, Incorvaia C, Frati F, Quaranta N. Nasal cytology in children: recent advances. Ital J Pediatr 2012; 38:51. [PMID: 23009215 PMCID: PMC3533990 DOI: 10.1186/1824-7288-38-51] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Accepted: 09/10/2012] [Indexed: 02/07/2023] Open
Abstract
Nasal cytology is a very useful diagnostic tool in nasal disorders, being able to detect both the cellular modifications of the nasal epithelium caused by either allergen exposure or irritative stimuli (that may be physical or chemical, acute or chronic), or inflammation. Over these past few years, nasal cytology has allowed to identify new disorders, such as the non-allergic rhinitis with eosinophils (NARES), the non-allergic rhinitis with mast cells (NARMA), the non-allergic rhinitis with neutrophils (NARNE), and the non-allergic rhinitis with eosinophils and mast cells (NARESMA). The rhinocytogram is actually able to distinguish the different forms of allergic rhinitis and to suggest the appropriate treatment, such as antinflammatory drugs or allergen immunotherapy. The technique is easy to perform and nasal cytology is therefore particularly suitable even for children. Such a consideration suggests the utility of a systematic use of nasal cytology in the diagnostic work-up of nasal disorders in children, in order to reach a proper defined diagnosis and to set a rational therapeutic approach: in facts, these two elements are fundamental in order to prevent from complications and to improve the patient’s quality of life.
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Affiliation(s)
- Matteo Gelardi
- Department of Otolaryngology, University of Bari, Bari, Italy
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Makihara S, Okano M, Fujiwara T, Kimura M, Higaki T, Haruna T, Noda Y, Kanai K, Kariya S, Nishizaki K. Early interventional treatment with intranasal mometasone furoate in Japanese cedar/cypress pollinosis: a randomized placebo-controlled trial. Allergol Int 2012; 61:295-304. [PMID: 22441634 DOI: 10.2332/allergolint.11-oa-0382] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Accepted: 11/19/2011] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Little is known about the safety and effectiveness of early interventional treatment (EIT) with intranasal corticosteroids for seasonal allergic rhinitis. We designed a double-blinded, randomized, placebo-controlled 12-week trial of EIT with mometasone furoate nasal spray (MFNS) for Japanese cedar/cypress pollinosis (JCCP). METHODS A total of 50 JCCP patients received MFNS (200μg once daily: n = 25) or placebo (n = 25) starting on February 1, 2010. Treatments continued until the end of April. The primary endpoint was the comparison of the total nasal symptom score (TNSS) between the MFNS and placebo groups. The secondary endpoints included comparisons of QOL, daytime sleepiness, nasal ECP levels, and safety. RESULTS Continuous dispersion of Japanese cedar pollen began on February 22. Although the placebo group showed a significant worsening of symptoms after the start of the continuous dispersion, no worsening occurred in the MFNS group. A significant difference in the TNSS between the two groups was seen starting at 4 weeks after the treatment. Similar results were seen for QOL and sleepiness. Nasal ECP levels in March were significantly lower in the MFNS group. A total of 56% of the MFNS group progressed to a persistent allergic rhinitis state in accordance with the ARIA classification, as opposed to 84% of the placebo group. MFNS was well tolerated, and the plasma cortisol concentrations were similar between the two groups. CONCLUSIONS EIT with MFNS for JCCP is both safe and effective. This treatment can potentially lessen symptoms and help pollinosis patients remain in the intermittent state.
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Affiliation(s)
- Seiichiro Makihara
- Department of Otolaryngology-Head & Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Takahashi G, Matsuzaki Z, Okamoto A, Ito E, Matsuoka T, Nakayama T, Masuyama K. A randomized control trail of stepwise treatment with fluticasone propionate nasal spray and fexofenadine hydrochloride tablet for seasonal allergic rhinitis. Allergol Int 2012; 61:155-62. [PMID: 22189593 DOI: 10.2332/allergolint.11-oa-0342] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Accepted: 08/05/2011] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND In Japan, oral antihistamines are frequently used as the initial treatment for seasonal allergic rhinitis (SAR), and intranasal steroids are added when nasal symptoms worsen. This study aimed to evaluate whether starting treatment with fluticasone propionate nasal spray (FP) from the beginning of pollinosis symptoms and adding fexofenadine hydrochloride tablet (FEX) when SAR is aggravated could achieve improved amelioration of nasal symptoms throughout the pollen season in comparison with a treatment that involves starting with FEX and later adding FP. METHODS In this pragmatic, randomized, open-label, parallel-group trial, 51 Japanese cedar pollinosis patients (age, 16-85 years) were randomly divided and administered FP 100 mcg twice daily as an initial drug with FEX 60 mg twice daily as an additional drug and the same treatment in the reverse order. Nasal symptoms were evaluated in a daily dairy using a 4-point scale. The primary outcome was area under curve of the line representing the daily total nasal symptom score in the pollen season on a graph. RESULTS Initial treatment with FP was significantly (P = 0.0015) more effective than initial treatment with FEX in improving the primary outcome. The average daily total nasal symptom score in the initial treatment with FP group was better than that in the initial treatment with FEX group throughout the pollen season. CONCLUSIONS Initiating treatment with FP and adding FEX might lead to improved outcomes for nasal symptoms in comparison with the same drugs administered in the reverse order.
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Affiliation(s)
- Goro Takahashi
- Department of Otolaryngology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan. gr−
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Kvarnhammar AM, Rydberg C, Järnkrants M, Eriksson M, Uddman R, Benson M, Cardell LO. Diminished levels of nasal S100A7 (psoriasin) in seasonal allergic rhinitis: an effect mediated by Th2 cytokines. Respir Res 2012; 13:2. [PMID: 22230654 PMCID: PMC3287248 DOI: 10.1186/1465-9921-13-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Accepted: 01/09/2012] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND S100A7 is an antimicrobial peptide involved in several inflammatory diseases. The aim of the present study was to explore the expression and regulation of S100A7 in seasonal allergic rhinitis (SAR). METHODS Nasal lavage (NAL) fluid was obtained from healthy controls before and after lipopolysaccharide (LPS) provocation, from SAR patients before and after allergen challenge, and from SAR patients having completed allergen-specific immunotherapy (ASIT). Nasal biopsies, nasal epithelial cells and blood were acquired from healthy donors. The airway epithelial cell line FaDu was used for in vitro experiments. Real-time RT-PCR and immunohistochemistry were used to determine S100A7 expression in nasal tissue and cells. Release of S100A7 in NAL and culture supernatants was measured by ELISA. The function of recombinant S100A7 was explored in epithelial cells, neutrophils and peripheral blood mononuclear cells (PBMC). RESULTS Nasal administration of LPS induced S100A7 release in healthy non-allergic subjects. The level of S100A7 was lower in NAL from SAR patients than from healthy controls, and it was further reduced in the SAR group 6 h post allergen provocation. In contrast, ASIT patients displayed higher levels after completed treatment. S100A7 was expressed in the nasal epithelium and in glands, and it was secreted by cultured epithelial cells. Stimulation with IL-4 and histamine repressed the epithelial S100A7 release. Further, recombinant S100A7 induced activation of neutrophils and PBMC. CONCLUSIONS The present study shows an epithelial expression and excretion of S100A7 in the nose after microbial stimulation. The levels are diminished in rhinitis patients and in the presence of an allergic cytokine milieu, suggesting that the antimicrobial defense is compromised in patients with SAR.
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Affiliation(s)
- Anne Månsson Kvarnhammar
- Division of ENT Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Huddinge, Sweden.
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Compalati E, Ridolo E, Passalacqua G, Braido F, Villa E, Canonica GW. The link between allergic rhinitis and asthma: the united airways disease. Expert Rev Clin Immunol 2010; 6:413-23. [PMID: 20441427 DOI: 10.1586/eci.10.15] [Citation(s) in RCA: 118] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Rhinitis and asthma are often associated and the two disorders interact at various levels. Rhinitis typically precedes the development of asthma and can contribute to unsatisfactory asthma control. The presence and type of asthma is influenced by sensitization, and the duration and severity of allergic rhinitis. Nasal symptoms, airflow and markers of inflammation directly correlate with lower airway involvement. Local tissue factors, such as microbial stimuli and systemic inflammatory mechanisms, play a role in the clinical expression of the allergic airway syndrome. There is increasing evidence that suggests a major involvement of airway epithelial cells in the pathogenesis of both asthma and allergic rhinitis. Even in patients with rhinitis who do not have asthma, subclinical changes in the lower airways and inflammatory mediators can be detected. The pathogenic role of paranasal sinus infections in respiratory allergy has been better elucidated but there remains a need for further research. Treatment of established rhinitis may affect asthma control and could have some impact on airway obstruction, but a direct effect of rhinitis therapy on lower airway inflammation remains to be clearly established.
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Affiliation(s)
- Enrico Compalati
- Allergy & Respiratory Diseases Clinic, Dept of Internal Medicine, University of Genova, Italy.
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Lei F, Zhu D, Sun J, Dong Z. Effects of minimal persistent inflammation on nasal mucosa of experimental allergic rhinitis. Am J Rhinol Allergy 2010; 24:e23-8. [PMID: 20109315 DOI: 10.2500/ajra.2010.24.3414] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Minimal persistent inflammation (MPI) is considered another piece of the complex puzzle of allergic inflammation. Although some studies regarding MPI have been reported, no study has evaluated the effects of MPI on the structure changes at the site of allergic reaction. This study investigates whether long-time MPI during allergic rhinitis (AR) results in some features of tissue remodeling in the nasal mucosa. METHODS An animal model of MPI was developed by repeated nasal challenge with low concentration of ovalbumin (OVA) in sensitized guinea pigs. The models were assessed by allergic symptom after antigen challenge, eosinophil infiltration in the nasal mucosa, and intercellular adhesion molecule (ICAM) 1 expression on nasal epithelial cells. The histopathological changes in nasal mucosa were determined by Alcian blue-periodic acid-Schiff and Masson's trichrome staining. The expression of transforming growth factor (TGF) beta(1) and matrix metalloproteinase (MMP) 9 was examined by immunofluorescence under a confocal laser scan microscope. RESULTS When sensitized animals were challenged with the low concentration of 0.01% OVA, the symptom of sneezing disappeared, but there were still mild eosinophils infiltration and weak ICAM-1 expression, which indicated the success of MPI models. Moreover, the number of goblet cells and the percentage area of collagen deposition were both mildly increased. The expression of MMP-9 and TGF-beta(1) was also weakly elevated. CONCLUSION We have successfully established MPI models and proved long-time MPI may result in mild features of remodeling in the nasal mucosa, which provide new insights into the unexpected potential effects of MPI on the structural changes.
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Affiliation(s)
- Fei Lei
- Department of Otorhinolaryngology-Head and Neck Surgery, China-Japan Union Hospital, Bethune Faculty of Medicine, Jilin University, Changchun, China
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Ciprandi G, De Amici M, Tosca MA, Marseglia G. Serum leptin levels depend on allergen exposure in patients with seasonal allergic rhinitis. Immunol Invest 2010; 38:681-9. [PMID: 19860581 DOI: 10.3109/08820130903107965] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Several studies have outlined a possible relationship between an increased body mass index (BMI) and respiratory allergic diseases, such as asthma and rhinitis. There are conflicting data about the role for leptin in allergic rhinitis. Therefore, the aim of the study was to evaluate the serum leptin levels in patients with seasonal allergic rhinitis (SAR), enrolled during and outside the pollen season, and in a group of healthy controls. The study included 137 subjects; 62 symptomatic SAR patients evaluated in season, 41 symptomless SAR patients out season, and 34 normal subjects. All subjects were consecutively evaluated. A skin prick test and blood sampling for assessing serum leptin levels were performed in all subjects. After analysing genders separately, symptomatic male patients had significantly higher levels than symptomless and normal subjects (p = 0.0004 and 0.0031 respectively), symptomatic female patients showed significantly higher levels than normal females (p = 0.0002). This study provides the evidence that leptin serum levels depend on allergen exposure in SAR patients.
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Affiliation(s)
- Giorgio Ciprandi
- Department of Internal Medicine, Azienda Ospedaliera Universitaria San Martino, University of Genoa, Genoa, Italy.
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Capasso M, Varricchio A, Ciprandi G. Impact of allergic rhinitis on asthma in children: effects on bronchodilation test. Allergy 2010; 65:264-8. [PMID: 19796204 DOI: 10.1111/j.1398-9995.2009.02168.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Relevant relationship exists between upper and lower airways. Bronchial obstruction is a paramount feature of asthma and its reversibility is considered a diagnostic step for asthma diagnosis. OBJECTIVE This study aimed at evaluating a large group of children with allergic rhinitis alone for investigating the degree of brochodilation and possible factors related to it. METHODS Two hundred patients with allergic rhinitis and 150 normal subjects were consecutively evaluated. Clinical examination, skin prick test, spirometry, and bronchodilation test were performed in all patients. RESULTS Rhinitics showed a significant FEV(1) increase after bronchodilation test (P < 0.0001) in comparison both to basal values and to controls' levels. More than 20% of rhinitics had reversibility (> or =12% basal levels). Patients with reversibility had lower FEV(1) levels, longer rhinitis duration, and perennial allergy. CONCLUSION This study highlights the close link between upper and lower airways and the relevance of performing bronchodilation test in patients with allergic rhinitis and these characteristics.
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Affiliation(s)
- M Capasso
- Department of Paediatrics, Ospedale Civile "Ave Gratia Plena", Piedimonte Matese, Italy
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Canonica GW, Compalati E. Minimal persistent inflammation in allergic rhinitis: implications for current treatment strategies. Clin Exp Immunol 2009; 158:260-71. [PMID: 19765020 PMCID: PMC2792821 DOI: 10.1111/j.1365-2249.2009.04017.x] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2009] [Indexed: 12/21/2022] Open
Abstract
Patients with allergic rhinitis have traditionally been placed into 'seasonal' and 'perennial' categories, which do not account for the subclinical inflammatory state that exists in many patients. In subjects with seasonal and perennial allergic rhinitis, even subthreshold doses of allergen have been found to cause inflammatory cell infiltration in the nasal mucosa, including increases in expression of cellular adhesion molecules, nasal and conjunctival eosinophilia, and other markers of inflammation, which do not result in overt allergy symptoms. This state - which has been termed 'minimal persistent inflammation'- may contribute to hyperreactivity and increased susceptibility to development of clinical symptoms as well as common co-morbidities of allergic rhinitis, such as asthma. Treating overt allergy symptoms as well as this underlying inflammatory state requires agents that have well-established clinical efficacy, convenient administration, potent anti-inflammatory effects and proven long-term safety, so that long-term continuous administration is feasible. Of the three major classes of commonly used allergic rhinitis medications - intranasal corticosteroids, anti-histamines, and anti-leukotrienes - intranasal corticosteroids appear to represent the most reasonable therapeutic option in patients who would benefit from continuous inhibition of persistent inflammation.
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MESH Headings
- Administration, Intranasal
- Allergens/immunology
- Asthma/etiology
- Chronic Disease
- Glucocorticoids/therapeutic use
- Histamine H1 Antagonists/therapeutic use
- Humans
- Intercellular Adhesion Molecule-1/immunology
- Leukotriene Antagonists/therapeutic use
- Rhinitis, Allergic, Perennial/complications
- Rhinitis, Allergic, Perennial/drug therapy
- Rhinitis, Allergic, Perennial/immunology
- Rhinitis, Allergic, Seasonal/complications
- Rhinitis, Allergic, Seasonal/drug therapy
- Rhinitis, Allergic, Seasonal/immunology
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Affiliation(s)
- G W Canonica
- Allergy and Respiratory Diseases, Clinic Dipartmento di Medicina Interna e Specialita Mediche (DIMI), University of Genova, Genova, Italy.
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Scordamaglia F, Compalati E, Baiardini I, Scordamaglia A, Canonica GW. Levocetirizine in the treatment of allergic diseases. Expert Opin Pharmacother 2009; 10:2367-77. [PMID: 19663743 DOI: 10.1517/14656560903193086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Levocetirizine, the R-enantiomer of cetirizine dihydrochloride, is a new molecule with a potent and selective antihistamine activity. OBJECTIVE To investigate the evidence that levocetirizine is an effective therapy for allergic disease. METHODS Evaluation of published articles in English, or having an English abstract. RESULTS Clinical trials indicate that levocetirizine is safe and effective for the treatment of allergic rhinitis and chronic idiopathic urticaria. The compound shows a rapid onset of action, high bioavailability and affinity for the H1 receptor. Moreover, this molecule demonstrates many anti-inflammatory effects that enhance the clinical therapeutic benefit not only in short-term but also in long-term treatments, as reported in recent trials utilizing levocetirizine for several months. CONCLUSION Levocetirizine confirms its safe effective activity for treatment of allergic disease in both adults and children.
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Affiliation(s)
- Francesca Scordamaglia
- Genoa University, Department of Internal Medicine, Allergy and Respiratory Diseases, Genoa, Italy
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Ciprandi G, Pistorio A, Tosca M, Cirillo I, Marseglia G. Relationship between Responses to Bronchodilation Testing and to Nasal Decongestion Testing in Patients with Allergic Rhinitis Alone. EUR J INFLAMM 2009; 7:153-160. [DOI: 10.1177/1721727x0900700305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2023] Open
Abstract
A remarkable relationship exists between upper and lower airways. Bronchial obstruction is a paramount feature of asthma as well as nasal obstruction of allergic rhinitis (AR). This study aims to evaluate the response to both bronchodilation and decongestion testing and their relationships in a large group of patients with moderate-severe persistent AR alone. Two hundred eleven patients with moderate-severe persistent AR were prospectively and consecutively evaluated. Clinical examination, skin prick test, spirometry, bronchodilation test, rhinomanometry, and decongestion test were performed on all patients. Seventeen subjects (8%) did not respond to any of the tests, 55 subjects (26.1%) were responders only to the decongestion test, 31 (14.7%) only to the bronchodilation test, and 108 subjects (51.2%) responded to both these tests. Longer AR duration was significantly associated with positive response to both tests (p<0.01). In conclusion, this study provides the first evidence that patients with moderate-severe persistent AR may frequently show reversibility to both bronchodilation and decongestion tests.
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Affiliation(s)
- G. Ciprandi
- Department of Internal Medicine, Azienda Ospedaliera Universitaria San Martino, Genoa
| | - A. Pistorio
- Epidemiology and Statistics Unit, IRCCS G. Gaslini, Genoa
| | - M.A. Tosca
- Pneumology and Allergy Center, IRCCS G. Gaslini, Genoa
| | - I. Cirillo
- Pneumology and Allergy, Navy Medical Service, La Spezia
| | - G.L. Marseglia
- Clinica Pediatrica, Foundation IRCCS San Matteo, University of Pavia, Pavia, Italy
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Månsson A, Bachar O, Adner M, Cardell LO. Nasal CpG oligodeoxynucleotide administration induces a local inflammatory response in nonallergic individuals. Allergy 2009; 64:1292-300. [PMID: 19243360 DOI: 10.1111/j.1398-9995.2009.02012.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND We have previously demonstrated the presence of toll-like receptor 9 in the nasal mucosa of both healthy and allergic individuals. CpG motifs, found in bacterial and viral DNA, elicit strong immunostimulatory effects via this receptor. CpG is known to skew the immune system towards a T helper 1 (Th1) profile, thereby suppressing Th2-driven allergic responses. This study was designed to examine the effects of CpG administration in the human nose. METHODS Twenty subjects, of whom 10 suffered from seasonal allergic rhinitis (AR), were challenged intranasally with CpG outside pollen season. Symptom scores, nasal airway resistance (NAR), and nasal and pulmonary nitric oxide (NO) levels were assayed prior to challenge and 30 min, 6, 24 and 48 h post challenge. The presence of leukocytes and various cytokines were analyzed in nasal lavage (NAL) fluids before and after CpG exposure. RESULTS Increased NAR, nasal NO production and secretion of interleukin (IL)-1beta, IL-6, and IL-8 were seen after CpG exposure. Further analysis revealed that this inflammatory response was more marked in healthy subjects than among patients with AR, although a higher basal inflammatory response was recorded in the allergic group. In vitro experiments suggest that the effects induced by CpG are mediated by epithelial cells and neutrophils. CONCLUSION Nasal administration of CpG induces a local airway inflammation, more distinct among healthy than allergic individuals. The reduced responsiveness to CpG in allergic patients might be related to the ongoing minimal persistent inflammation. Results from cytokine analyses reflect the ability of CpG to induce a pro-inflammatory Th1-like immune response.
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Affiliation(s)
- A Månsson
- Department of Otorhinolaryngology, Malmö University Hospital, Lund University, Sweden
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Taskapan O, Kutlu A, Karabudak O. Evaluation of autologous serum skin test results in patients with chronic idiopathic urticaria, allergic/non-allergic asthma or rhinitis and healthy people. Clin Exp Dermatol 2008; 33:754-8. [PMID: 18954415 DOI: 10.1111/j.1365-2230.2008.02819.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Recent data indicate that the autologous serum skin test (ASST) shows a high rate of reactivity not only in chronic idiopathic urticaria (CIU) but also in cases with non-allergic asthma and rhinitis (NAAR), multiple drug allergy syndrome (MDAS) and even in some healthy people. Aim. To evaluate ASST reactivity in patients with CIU, allergic/non-allergic asthma or rhinitis and in healthy controls. METHODS We studied 80 patients with CIU, 40 non-atopic patients with NAAR, 57 patients with allergic rhinitis (AR) and allergic bronchial asthma (ABA), and 45 healthy controls. ASST was performed in all patients and controls, and it was considered positive when a serum-induced weal with a diameter 1.5 mm greater than the negative (saline) control, surrounded by erythema, was present. RESULTS In total, 42 patients with CIU showed ASST reactivity (52.5%). ASST was found to be positive in 8 of 40 patients with NAAR (20%). The rate was similar (17.5%) in the AR/ABA patient group. However, 25 healthy controls (55.5%) also had positive ASST. The highest rate was in female controls and in individuals in the 18-30-year-old age group. CONCLUSION The data indicate that ASST positivity might be a nonspecific phenomenon, influenced by many factors. In the light of the results of this study, we suggest that the significance of ASST reactivity should be re-evaluated in CIU. In addition, the importance of ASST reactivity in patients with AR/ABA and in patients with NAAR remains unclear, and further controlled studies are needed.
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Affiliation(s)
- O Taskapan
- Department of Allergy, GATA H. Pasa Teaching Hospital, Tibbiye cad, Kadikoy, Istanbul, Turkey.
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Canonica GW, Fumagalli F, Guerra L, Baiardini I, Compalati E, Rogkakou A, Massacane P, Gamalero C, Riccio AM, Scordamaglia A, Passalacqua G. Levocetirizine in persistent allergic rhinitis: continuous or on-demand use? A pilot study. Curr Med Res Opin 2008; 24:2829-39. [PMID: 18761784 DOI: 10.1185/03007990802395927] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Allergic rhinitis is a high-prevalence disease that affects quality of life (QOL), sleep quality and productivity of patients. According to the ARIA initiative, it is classified as intermittent and persistent, the latter being the most troublesome. METHODS The aim of this randomized, open-label, 6-month, pilot study was to determine whether levocetirizine 5 mg administered continuously once daily in the morning was better than levocetirizine 5 mg on-demand in symptomatic subjects with persistent allergic rhinitis. Total and individual symptom scores were recorded in a diary card throughout the study. QOL, quality of sleep, nasal cytology, rate of drug intake, and safety were also assessed at pre-defined time-points. RESULTS In all, adult patients (31 in each group) were enrolled, of whom 22 dropped out. Both treatment regimens considerably decreased the total and individual symptoms scores from baseline and achieved similar levels up to week 14. Continuous treatment was generally better than on-demand from week 15 onwards, reaching statistical significance from weeks 17 to 21 (from week 19 to 21 for nasal pruritus). Both regimens substantially improved QOL and sleep quality. Both treatments were well tolerated, although the on-demand group reported more adverse events. CONCLUSION The present open label study in 62 patients indicates that levocetirizine 5 mg reliably controls persistent rhinitis over a period of 6 months, and shows a trend to be more effective in controlling the symptoms of rhinitis, improving QOL and decreasing nasal inflammation, when administered as long-term continuous therapy rather than as on-demand therapy.
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Affiliation(s)
- Giorgio Walter Canonica
- University of Genoa, Allergy and Respiratory Diseases, Department of Internal Medicine, Genoa, Italy.
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Ciprandi G, Cirillo I, Pistorio A, La Grutta S, Tosca M. Impact of allergic rhinitis on asthma: effects on bronchodilation testing. Ann Allergy Asthma Immunol 2008; 101:42-6. [PMID: 18681083 DOI: 10.1016/s1081-1206(10)60833-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND A remarkable relationship exists between the upper and lower airways. Bronchial obstruction is a paramount feature of asthma, and its reversibility is considered a main step in asthma diagnosis. OBJECTIVE To investigate the degree of bronchodilation and possible risk factors related to it in patients with moderate-severe persistent allergic rhinitis alone. METHODS A total of 375 patients with moderate-severe persistent allergic rhinitis and 115 controls were prospectively and consecutively evaluated by means of clinical examination, skin prick testing, spirometry, and bronchodilation testing. RESULTS Patients with rhinitis showed a significant increase in forced expiratory volume in 1 second (FEV) after bronchodilation testing compared with basal values and levels in controls (P < .001). Two-thirds of the rhinitic patients had reversibility (> or = 12% basal levels). Patients with reversibility had lower FEV1 levels, longer rhinitis duration, and mite and tree allergies. CONCLUSIONS This study highlights the close link between the upper and lower airways and the relevance of performing bronchodilation testing in patients with moderate-severe persistent allergic rhinitis.
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Affiliation(s)
- Giorgio Ciprandi
- Department of Internal Medicine, Azienda Ospedaliera Universitaria San Martino, Genoa, Italy.
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Bousquet J, Khaltaev N, Cruz AA, Denburg J, Fokkens WJ, Togias A, Zuberbier T, Baena-Cagnani CE, Canonica GW, van Weel C, Agache I, Aït-Khaled N, Bachert C, Blaiss MS, Bonini S, Boulet LP, Bousquet PJ, Camargos P, Carlsen KH, Chen Y, Custovic A, Dahl R, Demoly P, Douagui H, Durham SR, van Wijk RG, Kalayci O, Kaliner MA, Kim YY, Kowalski ML, Kuna P, Le LTT, Lemiere C, Li J, Lockey RF, Mavale-Manuel S, Meltzer EO, Mohammad Y, Mullol J, Naclerio R, O'Hehir RE, Ohta K, Ouedraogo S, Palkonen S, Papadopoulos N, Passalacqua G, Pawankar R, Popov TA, Rabe KF, Rosado-Pinto J, Scadding GK, Simons FER, Toskala E, Valovirta E, van Cauwenberge P, Wang DY, Wickman M, Yawn BP, Yorgancioglu A, Yusuf OM, Zar H, Annesi-Maesano I, Bateman ED, Ben Kheder A, Boakye DA, Bouchard J, Burney P, Busse WW, Chan-Yeung M, Chavannes NH, Chuchalin A, Dolen WK, Emuzyte R, Grouse L, Humbert M, Jackson C, Johnston SL, Keith PK, Kemp JP, Klossek JM, Larenas-Linnemann D, Lipworth B, Malo JL, Marshall GD, Naspitz C, Nekam K, Niggemann B, Nizankowska-Mogilnicka E, Okamoto Y, Orru MP, Potter P, Price D, Stoloff SW, Vandenplas O, Viegi G, Williams D. Allergic Rhinitis and its Impact on Asthma (ARIA) 2008 update (in collaboration with the World Health Organization, GA(2)LEN and AllerGen). Allergy 2008; 63 Suppl 86:8-160. [PMID: 18331513 DOI: 10.1111/j.1398-9995.2007.01620.x] [Citation(s) in RCA: 3050] [Impact Index Per Article: 190.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
MESH Headings
- Adolescent
- Asthma/epidemiology
- Asthma/etiology
- Asthma/therapy
- Child
- Global Health
- Humans
- Prevalence
- Rhinitis, Allergic, Perennial/complications
- Rhinitis, Allergic, Perennial/diagnosis
- Rhinitis, Allergic, Perennial/epidemiology
- Rhinitis, Allergic, Perennial/therapy
- Rhinitis, Allergic, Seasonal/complications
- Rhinitis, Allergic, Seasonal/diagnosis
- Rhinitis, Allergic, Seasonal/epidemiology
- Rhinitis, Allergic, Seasonal/therapy
- Risk Factors
- World Health Organization
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Affiliation(s)
- J Bousquet
- University Hospital and INSERM, Hôpital Arnaud de Villeneuve, Montpellier, France
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Canonica GW, Bousquet J, Mullol J, Scadding GK, Virchow JC. A survey of the burden of allergic rhinitis in Europe. Allergy 2008; 62 Suppl 85:17-25. [PMID: 17927674 DOI: 10.1111/j.1398-9995.2007.01549.x] [Citation(s) in RCA: 271] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The perceptions of patients and physicians regarding the symptoms and impact of allergic rhinitis (AR) were assessed in a prospective, cross-sectional, international survey. This paper presents the combined survey results from five European countries (Germany, France, Italy, Spain and the UK). METHODS Data were recorded by 1,482 patients and matched with records from 415 primary care physicians and specialists. Diagnostic tests to confirm AR had been performed on 1,279 (86.3%) patients. Both physicians and patients recorded the presence, severity and impact of symptoms at the time of consultation in addition to those symptoms frequently, but not currently, present. Health-related quality of life (HRQoL) was assessed using the Mini Rhinoconjunctivitis Quality of Life Questionnaire. RESULTS A large proportion of patients had moderate-severe disease (67.2%; n = 996), persistent disease (42.5%; n = 630) and comorbidities such as asthma (31.5%; n = 467). Overall, patients rated their disease as more severe than did physicians (P < 0.001). At the time of the consultation, one-third of all patients reported that their current nasal and ocular symptoms were moderate or severe in nature. According to the physicians' assessment, good control of nasal and ocular symptoms was achieved in 45.4% (n = 673) and 51.3% (n = 760) of patients, respectively, and poor symptom control in 18.0% (n = 267) and 12.1% (n = 179). Overall, 43.3% (n = 641) of those surveyed were using two or more medicines for their AR. Health-related quality of life was correlated with disease severity and with the number of days without symptoms in the previous 4 weeks. Allergic rhinitis had a significantly greater impact in patients with more persistent disease than in those with intermittent disease (2.3 +/- 1.3 vs 1.9 +/- 1.2; P < 0.001). Nonetheless, 81.8% (n = 601) of patients with intermittent disease reported some impairment of their daily life as a result of their AR. CONCLUSIONS Allergic rhinitis remains a significant health problem because of the high burden of symptoms and its impact on general well being and HRQoL among patients consulting for this condition. Overall, there was a poor correlation between patients and physicians in the reporting of disease severity.
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MESH Headings
- Adolescent
- Adult
- Aged
- Asthma/physiopathology
- Comorbidity
- Cost of Illness
- Cross-Sectional Studies
- Europe/epidemiology
- Female
- Humans
- Male
- Middle Aged
- Prevalence
- Prospective Studies
- Psychometrics
- Quality of Life
- Rhinitis, Allergic, Perennial/epidemiology
- Rhinitis, Allergic, Perennial/physiopathology
- Rhinitis, Allergic, Perennial/psychology
- Rhinitis, Allergic, Seasonal/epidemiology
- Rhinitis, Allergic, Seasonal/physiopathology
- Rhinitis, Allergic, Seasonal/psychology
- Sickness Impact Profile
- Surveys and Questionnaires
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Affiliation(s)
- G W Canonica
- Facoltà di Medicina e Chirurgia, Dipartimento di Medicina Interna e Specialità Mediche (DIMI), University of Genova, Genova, Italy
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Abstract
Asthma is a chronic inflammatory disease involving many different cell types and cellular elements. Evidence suggests that, in the long term, this inflammation leads to remodeling of the airways, airflow obstruction, and the bronchial hyperreactivity symptoms of asthma, and is present even in patients with intermittent disease. Patients with allergic asthma and those with seasonal allergic rhinitis are believed to have minimal persistent inflammation, and the two diseases often occur together. Early intervention with inhaled corticosteroids (ICS) is believed to modify the disease process and may limit long-term remodeling. ICS remain the cornerstone and "gold standard" of treatment for asthma.
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Affiliation(s)
- G Walter Canonica
- Allergy and Respiratory Diseases, DIMI, Department of Internal Medicine, University of Genoa, Genoa, Italy.
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Gelardi M, Maselli Del Giudice A, Candreva T, Fiorella ML, Allen M, Klersy C, Marseglia GL, Ciprandi G. Nasal resistance and allergic inflammation depend on allergen type. Int Arch Allergy Immunol 2006; 141:384-9. [PMID: 16943677 DOI: 10.1159/000095465] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2005] [Accepted: 05/16/2006] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Allergic rhinitis is characterized by inflammatory cell infiltrate and increased nasal airflow resistance. OBJECTIVE The aim of this study was to evaluate the relationship between sensitization type, inflammatory cell pattern, and nasal airflow resistance in a group of rhinitics with monosensitization. METHODS Seventy-seven subjects (40 males and 37 females, with a mean age of 33 +/- 4.4 years) suffering from allergic rhinitis were studied. Skin prick test, nasal cytology and electronic rhinomanometry were assessed in all subjects. RESULTS The number of subjects monosensitized to house dust mites was 23, to grasses 20, to cypress 17, to Parietaria 11, and to olive tree 6. Significant differences were observed between each type of allergen sensitization concerning both the nasal airflow resistance (p = 0.002) and the nasal cytology pattern: eosinophils (p = 0.004), degranulated eosinophils (p = 0.002), mast cells (p = 0.006) and degranulated mast cells (p = 0.008). Furthermore, goblet cells were higher in house dust mite-sensitized subjects compared with the pollen-sensitized group (p = 0.018), in which a prevalence of eosinophils, degranulated eosinophils, mast cells and degranulated mast cells was observed (p = 0.049, p < 0.001, p = 0.022 and p = 0.007, respectively). Nasal resistances were higher in the pollen group (p = 0.001). CONCLUSIONS This study provides evidence that inflammatory cell pattern and nasal resistance depend on the type of allergen sensitization.
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Affiliation(s)
- Matteo Gelardi
- Dipartimento di Oculistica e Otorinolaringoiatria, Università di Bari, Bari, Italy
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Abstract
BACKGROUND Allergic rhinitis represents a global health problem. Non-specific nasal hyperresponsiveness is an important feature of allergic and non-allergic rhinitis. This phenomenon is believed to result from the effect of allergic inflammation on the sensory nerves that supply the upper airway mucosa. A pharmacologic agent that has proved useful in the investigation of effects of neuronal stimulation is capsaicin, the pungent component of hot pepper. Intranasal capsaicin specifically stimulates afferent nerves consisting mostly of unmyelinated C fibers and some myelinated A-delta fibers. As a result it can trigger central and axonal reflexes, the latter being putatively mediated by the release of neuropeptides. Capsaicin as a blocking agent of neuropeptides, blocks the axon reflex and may exert a curative effect on allergic rhinitis. OBJECTIVES To assess the effectiveness of capsaicin for allergic rhinitis in adults. SEARCH STRATEGY We searched the Cochrane Ear, Nose and Throat Disorders Group Specialised Register, the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library Issue 1, 2006), MEDLINE (1966 to 2006) and EMBASE (1974 to 2006). We assessed bibliographies from included studies, and contacted authors of known studies for additional information about published and unpublished trials. The date of the most recent search was January 2006. SELECTION CRITERIA Randomised controlled trials of capsaicin for allergic rhinitis in adults were included. DATA COLLECTION AND ANALYSIS Three reviewers read each paper, blind to its identity. Decisions concerning inclusion were made by simple majority. We all performed quality assessment independently. MAIN RESULTS One small trial did not find evidence that intranasal capsaicin had a therapeutic effect in allergic rhinitis. A small pharmacological effect on clinical histamine dose response was found. After treatment, leukotriene levels in nasal lavage did not increase in the capsaicin group. AUTHORS' CONCLUSIONS There is insufficient evidence to assess the use of capsaicin in clinical practice.
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Affiliation(s)
- J Cheng
- Guangdong College of Pharmacy, Clinical Department, Guangzhou, China, 510224.
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Abstract
Allergic rhinitis (AR) is a high-prevalence disease, affecting 10-15% of the general population. AR is sustained by an IgE-mediated reaction, and by a complex inflammatory network of cells, mediators and cytokines that becomes chronic when exposure to allergen persists. A T helper 2 (TH2)-biased immune response is the basis for the allergic inflammation. The current therapeutic strategy is mainly based on drugs (antihistamines, nasal corticosteroids, cromones, decongestants) and allergen immunotherapy. Drugs are overall effective in controlling symptoms, but do not modify the immune background that leads to allergic inflammation, and safety concerns may be present especially for prolonged treatments. Immunotherapy can modify the allergic response, but there is still space for improvement. Nowadays, several approaches are under investigation to optimise the management of AR. On one hand, new drugs and antimediators are being developed; on the other hand, attempts are made to selectively block relevant signal pathways of allergic reaction. Finally, one of the major goals is to modify the TH2-biased immune response by improving the characteristics and modes of action of allergen immunotherapy.
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Affiliation(s)
- Giorgio Ciprandi
- Dipartimento Patologie Testa-Collo, Azienda Ospedaliera Universitaria San Martino, Allergologia-U.O. ORL, Largo R. Benzi 10, 16132 Genoa, Italy.
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