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Tajiri T, Suzuki M, Nishiyama H, Ozawa Y, Kurokawa R, Ito K, Fukumitsu K, Mori Y, Kanemitsu Y, Fukuda S, Uemura T, Ohkubo H, Takemura M, Maeno K, Ito Y, Oguri T, Iwasaki S, Niimi A. Efficacy of dupilumab for severe chronic rhinosinusitis with nasal polyps and asthma: A prospective study. Ann Allergy Asthma Immunol 2024:S1081-1206(24)00422-8. [PMID: 38972450 DOI: 10.1016/j.anai.2024.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 06/28/2024] [Accepted: 07/01/2024] [Indexed: 07/09/2024]
Abstract
BACKGROUND Dupilumab exerts clinical effects, including improved sinus opacification, olfactory function, and quality of life, in patients with severe chronic rhinosinusitis with nasal polyps (CRSwNPs). Meanwhile, only a few studies have reported its effects on nasal airway resistance and olfactory function, particularly in the Japanese population. Predictors of response remain unclear. OBJECTIVE To assess the comprehensive efficacy and therapeutic response to dupilumab in patients with severe CRSwNP with comorbid asthma. METHODS In 16 adult patients with severe CRSwNP with comorbid asthma, the efficacy of 48-week dupilumab treatment, including olfactory function measured by a T&T olfactometer, nasal airway resistance measured by rhinomanometry, nasal polyp score, Lund-Mackay computed tomography score, and 22-item Sinonasal Outcome Test (SNOT-22), was assessed. Regarding asthma, the annualized rate of exacerbations, 7-item Asthma Control Questionnaire (ACQ-7), and spirometry were assessed. Treatment responsiveness was analyzed. RESULTS With 48-week dupilumab treatment, olfactory function, nasal airway resistance, nasal polyp score, Lund-Mackay computed tomography score, and SNOT-22 scores improved significantly. Regarding comorbid asthma, the annualized rate of exacerbations decreased, and ACQ-7 scores and lung function improved significantly. According to the European Position Paper on Rhinosinusitis and Nasal Polyps 2020/European Forum for Research and Education in Allergy and Airway Diseases criteria, 15 patients (94%) were moderate-to-excellent responders at 48 weeks of treatment. Patients with higher SNOT-22 scores, ACQ-7 scores, the rate of asthma exacerbations in the previous year, and blood eosinophil counts benefited more from the treatment. CONCLUSION Dupilumab improved upper and lower airway outcomes especially in patients with severe CRSwNP with comorbid, poorly controlled asthma. TRIAL REGISTRATION UMIN Clinical Trials Registry: UMIN000038669.
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Affiliation(s)
- Tomoko Tajiri
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan.
| | - Motohiko Suzuki
- Department of Otorhinolaryngology & Head and Neck Surgery, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Hirono Nishiyama
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Yoshiyuki Ozawa
- Department of Diagnostic Radiology, Fujita Health University School of Medicine, Aichi, Japan
| | - Ryota Kurokawa
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Keima Ito
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Kensuke Fukumitsu
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Yuta Mori
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Yoshihiro Kanemitsu
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Satoshi Fukuda
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Takehiro Uemura
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Hirotsugu Ohkubo
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Masaya Takemura
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Ken Maeno
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Yutaka Ito
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Tetsuya Oguri
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Shinichi Iwasaki
- Department of Otorhinolaryngology & Head and Neck Surgery, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Akio Niimi
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
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Kikuta S, Nagayama S, Hasegawa-Ishii S. Structures and functions of the normal and injured human olfactory epithelium. Front Neural Circuits 2024; 18:1406218. [PMID: 38903957 PMCID: PMC11188711 DOI: 10.3389/fncir.2024.1406218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 05/20/2024] [Indexed: 06/22/2024] Open
Abstract
The olfactory epithelium (OE) is directly exposed to environmental agents entering the nasal cavity, leaving OSNs prone to injury and degeneration. The causes of olfactory dysfunction are diverse and include head trauma, neurodegenerative diseases, and aging, but the main causes are chronic rhinosinusitis (CRS) and viral infections. In CRS and viral infections, reduced airflow due to local inflammation, inflammatory cytokine production, release of degranulated proteins from eosinophils, and cell injury lead to decreased olfactory function. It is well known that injury-induced loss of mature OSNs in the adult OE causes massive regeneration of new OSNs within a few months through the proliferation and differentiation of progenitor basal cells that are subsequently incorporated into olfactory neural circuits. Although normal olfactory function returns after injury in most cases, prolonged olfactory impairment and lack of improvement in olfactory function in some cases poses a major clinical problem. Persistent inflammation or severe injury in the OE results in morphological changes in the OE and respiratory epithelium and decreases the number of mature OSNs, resulting in irreversible loss of olfactory function. In this review, we discuss the histological structure and distribution of the human OE, and the pathogenesis of olfactory dysfunction associated with CRS and viral infection.
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Affiliation(s)
- Shu Kikuta
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine, Nihon University, Tokyo, Japan
| | - Shin Nagayama
- Department of Neurobiology and Anatomy, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, TX, United States
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Brabahar BS, Kurien R, Panicker R, Rebekah G, Varghese L. Threshold and suprathreshold component analysis in olfactory dysfunction: a retrospective study. J Laryngol Otol 2024; 138:647-651. [PMID: 38058015 DOI: 10.1017/s0022215123002268] [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] [Indexed: 12/08/2023]
Abstract
OBJECTIVE To analyse variations in the n-butanol threshold and odour identification scores of the Connecticut Chemosensory Clinical Research Centre test in various grades of olfactory dysfunction and in different nasal conditions leading to olfactory loss. METHOD Retrospective observational study. RESULTS All grades of olfactory dysfunction were predominantly noted among males. In chronic rhinosinusitis, anosmia or severe hyposmia was seen in 87.5 per cent of patients without polyps in comparison with 68 per cent of patients with polyps. In addition, 90 per cent of patients with atrophic rhinitis and post-traumatic loss had anosmia, but only 30.7 per cent of patients with allergic rhinitis had anosmia. Pepper was the most affected smell for all the nasal diseases except atrophic rhinitis, in which asafoetida and baby powder smells were affected more. CONCLUSION In most inflammatory sinonasal conditions, odour identification is relatively preserved even when the threshold is maximally affected. In patients with comparable olfactory dysfunction based on the Connecticut Chemosensory Clinical Research Centre test score, a relatively preserved suprathreshold odour identification score may predict better prognosis.
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Affiliation(s)
| | - Regi Kurien
- Department of Otorhinolaryngology, Christian Medical College, Vellore, India
| | - Raga Panicker
- Department of Otorhinolaryngology, Christian Medical College, Vellore, India
| | - Grace Rebekah
- Department of Biostatistics, Christian Medical College, Vellore, India
| | - Lalee Varghese
- Department of Otorhinolaryngology, Christian Medical College, Vellore, India
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Eckert MA, Benitez A, Soler ZM, Dubno JR, Schlosser RJ. Gray matter and episodic memory associations with olfaction in middle-aged to older adults. Int Forum Allergy Rhinol 2024; 14:961-971. [PMID: 37897207 PMCID: PMC11045322 DOI: 10.1002/alr.23290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/18/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND Age-related declines in olfaction contribute to low quality of life and appear to occur with declines in cognitive function, including diminished episodic memory. We tested the hypothesis that low gray matter volume within cortical regions that support olfaction and episodic memory can explain age-related differences in olfactory and episodic memory functions. METHODS T1-weighted images, Sniffin' Sticks olfactory measures, and the NIH Toolbox-Cognition Battery were administered to 131 middle-aged to older adults (50-86 years; 66% female). Correlation was used to examine the associations between these measures. A network-based image processing approach was then used to examine the degree to which spatial patterns of gray matter variance were related to the olfactory and cognitive measures. Structural equation modeling was used to characterize the relative specificity of olfactory, cognitive, gray matter, and aging associations. RESULTS Olfactory threshold, discrimination, and identification exhibited small to medium effect size associations with episodic memory performance (rs = 0.27-0.42, ps < 0.002). Gray matter volume within medial temporal and orbitofrontal cortex was also related to olfactory (discrimination and identification) and episodic memory function (rs = 0.21-0.36, ps < 0.019). Age and episodic memory explained the same variance in olfaction that was explained by the medial temporal and orbitofrontal pattern of gray matter volume. CONCLUSIONS The results of this cross-sectional study suggest that identifying mechanisms contributing to differences in medial temporal and orbitofrontal cortex will advance our understanding of co-morbid olfactory and cognitive declines.
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Affiliation(s)
- Mark A. Eckert
- Department of Otolaryngology – Head and Neck Surgery, Medical University of South Carolina
| | | | - Zachary M. Soler
- Department of Otolaryngology – Head and Neck Surgery, Medical University of South Carolina
| | - Judy R. Dubno
- Department of Otolaryngology – Head and Neck Surgery, Medical University of South Carolina
| | - Rodney J. Schlosser
- Department of Otolaryngology – Head and Neck Surgery, Medical University of South Carolina
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Bachert C, Hicks A, Gane S, Peters AT, Gevaert P, Nash S, Horowitz JE, Sacks H, Jacob-Nara JA. The interleukin-4/interleukin-13 pathway in type 2 inflammation in chronic rhinosinusitis with nasal polyps. Front Immunol 2024; 15:1356298. [PMID: 38690264 PMCID: PMC11059040 DOI: 10.3389/fimmu.2024.1356298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/01/2024] [Indexed: 05/02/2024] Open
Abstract
Chronic rhinosinusitis with nasal polyps (CRSwNP) is predominantly a type 2 inflammatory disease associated with type 2 (T2) cell responses and epithelial barrier, mucociliary, and olfactory dysfunction. The inflammatory cytokines interleukin (IL)-4, IL-13, and IL-5 are key mediators driving and perpetuating type 2 inflammation. The inflammatory responses driven by these cytokines include the recruitment and activation of eosinophils, basophils, mast cells, goblet cells, M2 macrophages, and B cells. The activation of these immune cells results in a range of pathologic effects including immunoglobulin E production, an increase in the number of smooth muscle cells within the nasal mucosa and a reduction in their contractility, increased deposition of fibrinogen, mucus hyperproduction, and local edema. The cytokine-driven structural changes include nasal polyp formation and nasal epithelial tissue remodeling, which perpetuate barrier dysfunction. Type 2 inflammation may also alter the availability or function of olfactory sensory neurons contributing to loss of sense of smell. Targeting these key cytokine pathways has emerged as an effective approach for the treatment of type 2 inflammatory airway diseases, and a number of biologic agents are now available or in development for CRSwNP. In this review, we provide an overview of the inflammatory pathways involved in CRSwNP and describe how targeting key drivers of type 2 inflammation is an effective therapeutic option for patients.
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Affiliation(s)
- Claus Bachert
- Department of Otorhinolaryngology – Head and Neck Surgery, University Hospital of Münster, Münster, Germany
- Sun Yat-sen University, International Airway Research Center, Guangzhou, China
| | - Alexandra Hicks
- Immunology & Inflammation, Sanofi, Cambridge, MA, United States
| | - Simon Gane
- The Royal National Throat, Nose and Ear Hospital, London, United Kingdom
| | - Anju T. Peters
- Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Philippe Gevaert
- Upper Airways Research Laboratory, Faculty of Medicine, Ghent University, Ghent, Belgium
| | - Scott Nash
- Medical Affairs, Regeneron Pharmaceuticals Inc., Tarrytown, NY, United States
| | - Julie E. Horowitz
- Medical Affairs, Regeneron Pharmaceuticals Inc., Tarrytown, NY, United States
| | - Harry Sacks
- Medical Affairs, Regeneron Pharmaceuticals Inc., Tarrytown, NY, United States
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Kim B, Rothenberg ME, Sun X, Bachert C, Artis D, Zaheer R, Deniz Y, Rowe P, Cyr S. Neuroimmune interplay during type 2 inflammation: Symptoms, mechanisms, and therapeutic targets in atopic diseases. J Allergy Clin Immunol 2024; 153:879-893. [PMID: 37634890 PMCID: PMC11215634 DOI: 10.1016/j.jaci.2023.08.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/17/2023] [Accepted: 08/22/2023] [Indexed: 08/29/2023]
Abstract
Type 2 inflammation is characterized by overexpression and heightened activity of type 2 cytokines, mediators, and cells that drive neuroimmune activation and sensitization to previously subthreshold stimuli. The consequences of altered neuroimmune activity differ by tissue type and disease; they include skin inflammation, sensitization to pruritogens, and itch amplification in atopic dermatitis and prurigo nodularis; airway inflammation and/or hyperresponsiveness, loss of expiratory volume, airflow obstruction and increased mucus production in asthma; loss of sense of smell in chronic rhinosinusitis with nasal polyps; and dysphagia in eosinophilic esophagitis. We describe the neuroimmune interactions that underlie the various sensory and autonomic pathologies in type 2 inflammatory diseases and present recent advances in targeted treatment approaches to reduce type 2 inflammation and its associated symptoms in these diseases. Further research is needed to better understand the neuroimmune mechanisms that underlie chronic, sustained inflammation and its related sensory pathologies in diseases associated with type 2 inflammation.
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Affiliation(s)
- Brian Kim
- Kimberly and Eric J. Waldman Department of Dermatology, Mark Lebwohl Center for Neuroinflammation and Sensation, Icahn School of Medicine at Mount Sinai, New York, NY.
| | - Marc E Rothenberg
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Xin Sun
- Department of Pediatrics, University of California, San Diego, Calif
| | - Claus Bachert
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Muenster, Muenster, Germany; First Affiliated Hospital, Sun Yat-Sen University, International Airway Research Center, Guangzhou, China
| | - David Artis
- Jill Roberts Institute for Research in Inflammatory Bowel Disease, Friedman Center for Nutrition and Inflammation, Joan and Sanford I. Weill Department of Medicine, Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY
| | | | - Yamo Deniz
- Regeneron Pharmaceuticals, Tarrytown, NY
| | | | - Sonya Cyr
- Regeneron Pharmaceuticals, Tarrytown, NY
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Wu D, Liu Z, Bleier BS, Huang X, Hong J. Olfactory cleft mucus eosinophil-derived neurotoxin better reflects olfactory loss than blood eosinophil counts in patients with chronic rhinosinusitis. Int Forum Allergy Rhinol 2023; 13:2144-2155. [PMID: 37264735 DOI: 10.1002/alr.23202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/17/2023] [Accepted: 05/29/2023] [Indexed: 06/03/2023]
Abstract
BACKGROUND Eosinophils are associated with olfactory dysfunction in chronic rhinosinusitis (CRS) and eosinophil-derived neurotoxin (EDN) is a sensitive marker of intense eosinophil activation. This study aimed to analyze olfactory cleft mucus and olfactory mucosa EDN levels and their association with olfactory dysfunction in CRS. METHODS We prospectively recruited 150 patients with CRS electing endoscopic sinus surgery and 25 healthy controls. Both superior turbinate biopsy specimens and olfactory cleft mucus were collected to analyze EDN levels. Sniffin' Sticks test scores, olfactory cleft computed tomography (CT) scores, and olfactory cleft endoscopy scale (OCES) were obtained. Multivariable logistic regression analysis was applied to analyze the predictability of EDN levels for olfactory dysfunction in CRS. RESULTS Chronic rhinosinusitis with olfactory dysfunction presented significantly higher olfactory mucosa (p = 0.016) and olfactory cleft mucus (p < 0.001) EDN levels than CRS without olfactory dysfunction. Mucus EDN levels were positively correlated with blood eosinophils (r = 0.625, p = 0.002), olfactory cleft CT scores (r = 0.738, p < 0.001), and OCES (r = 0.605, p = 0.004) in CRS. Furthermore, mucus EDN levels were significantly negatively correlated with threshold, discrimination, and identification (TDI) (r = -0.688), olfactory threshold (r = -0.606), olfactory discrimination (r = -0.608), and olfactory identification (r = -0.697) scores. After adjusting for patient demographics and comorbidities, mucus EDN levels were significantly associated with olfactory dysfunction in CRS (odds ratio = 2.162; p = 0.027). Mucus EDN levels showed a significantly better performance for predicting olfactory dysfunction than blood eosinophil counts (area under the curve, 0.873 vs. 0.764, p = 0.024). CONCLUSION Olfactory cleft mucus EDN level may be a better biomarker for predicting olfactory dysfunction in CRS than blood eosinophil counts.
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Affiliation(s)
- Dawei Wu
- Department of Otolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing, PR China
| | - Zheng Liu
- Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, PR China
| | - Benjamin S Bleier
- The Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical, School, Boston, Massachusetts, USA
| | - Xiaoxi Huang
- Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, PR China
| | - Junsheng Hong
- Department of Otolaryngology, Beijing Anzhen Hospital, Capital Medical University, Beijing, PR China
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刘 承, 王 向, 司马 宇, 刘 仲, 张 罗. [The predicting role of postoperative changes in self-reported symptoms in patients with recurrence eosinophilic chronic sinusitis with nasal polyps]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2023; 37:864-870. [PMID: 37905481 PMCID: PMC10985659 DOI: 10.13201/j.issn.2096-7993.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Indexed: 11/02/2023]
Abstract
Objective:To investigate whether changes in postoperative symptoms and signs in patients can predict the recurrence of ECRS after nasal endoscopic sinus surgery. Methods:A total of 70 adult patients with ECRS were enrolled for ESS surgery from June 2020 to March 2022 in a single center. There were 50 males and 20 females, with an average age of (46.9±14.5) years. Follow-up after ESS was at least 52 weeks. Patients undergo peripheral blood tests, CT of the sinuses, olfactory T&T test, visual analogue scale of symptoms(VAS), and endoscopic scoring. Results:VAS scores and endoscopic scores were analyzed at preoperative and 6th week, 12th week, 24th week and 52th week postoperative. After 12th week postoperatively, there was a clear correlation between symptom scores and endoscopic scores. Moreover, olfactory disorder and nasal discharge were the two most obvious symptoms. There were differences in the expression of multiple preoperative clinical inflammatory indicators between the symptom-controled group and the symptom-uncontrolled group(previous surgical history, concomitant asthma, nasal smear eosinophil, serum EOS%, total IgE, CT score, olfactory score, and symptom score, all with P<0.05), while there was no difference in baseline endoscopic score(P>0.05). At 12th week postoperative, the two groups of patients showed significant differences in both symptom scores and endoscopic scores. The symptoms and endoscopic score at the 12th week point of follow-up were used as predictive indicators for recurrence, with sensitivity and specificity of 62.5% and 83.3%, respectively. Conclusion:The changes in postoperative symptom score and endoscopic score in ECRSwNP patients indicated that the recurred ECRS. In the symptom-uncontrolled group, symptomatic and endoscopic scores showed consistent increased scores; In the symptom-controlled group, conflicting results between increased endoscopic scores and stable symptoms suggest that the presence of asymptomatic recurrence must be considered. The changes in symptoms and signs at the 12th week point of follow-up can serve as clinical indicators for preventing disease recurrence.
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Affiliation(s)
- 承耀 刘
- 首都医科大学附属北京同仁医院耳鼻咽喉头颈外科(北京,100730)Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, 100730, China
| | - 向东 王
- 首都医科大学附属北京同仁医院耳鼻咽喉头颈外科(北京,100730)Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, 100730, China
- 北京市耳鼻咽喉科研究所、过敏性疾病北京实验室(北京市教育委员会)和鼻病研究北京市重点实验室Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission and Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology
- 首都医科大学附属北京同仁医院变态反应科Department of Allergy, Beijing TongRen Hospital, Capital Medical University
| | - 宇彤 司马
- 首都医科大学附属北京同仁医院耳鼻咽喉头颈外科(北京,100730)Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, 100730, China
| | - 仲燕 刘
- 北京市耳鼻咽喉科研究所、过敏性疾病北京实验室(北京市教育委员会)和鼻病研究北京市重点实验室Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission and Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology
| | - 罗 张
- 首都医科大学附属北京同仁医院耳鼻咽喉头颈外科(北京,100730)Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, 100730, China
- 北京市耳鼻咽喉科研究所、过敏性疾病北京实验室(北京市教育委员会)和鼻病研究北京市重点实验室Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission and Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology
- 首都医科大学附属北京同仁医院变态反应科Department of Allergy, Beijing TongRen Hospital, Capital Medical University
- 中国医学科学院慢性鼻病诊疗策略研究创新单元Research Unit of Diagnosis and Treatment of Chronic Nasal Diseases, Chinese Academy of Medical Sciences
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Merma-Linares C, Martinez MD, Gonzalez M, Alobid I, Figuerola E, Mullol J. Management of Mechanical Nasal Obstruction Isolated or Associated to Upper Airway Inflammatory Diseases in Real Life: Use of both Subjective and Objective Criteria. Curr Allergy Asthma Rep 2023; 23:567-578. [PMID: 37561310 PMCID: PMC10506933 DOI: 10.1007/s11882-023-01104-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/11/2023] [Indexed: 08/11/2023]
Abstract
PURPOSE OF REVIEW Mechanical nasal obstruction (MNO) is a prevalent condition with a high impact on patient's quality-of-life (QoL) and socio-economic burden. The aim of this study was to determine the usefulness of both subjective and objective criteria in the appropriate management of MNO, either alone or associated to upper airway inflammatory diseases such as allergic rhinitis (AR) or chronic rhinosinusitis with nasal polyps (CRSwNP). RECENT FINDINGS A long debate persists about the usefulness of subjective and objective methods for making decisions on the management of patients with nasal obstruction. Establishing standards and ranges of symptom scales and questionnaires is essential to measure the success of an intervention and its impact on QoL. To our knowledge this is the first real-life study to describe the management of MNO using both subjective and objective criteria in MNO isolated or associated to upper airway inflammatory diseases (AR or CRSwNP). Medical treatment (intranasal corticosteroids) has a minor but significant improvement in MNO subjective outcomes (NO, NOSE, and CQ7) with no changes in loss of smell and objective outcomes. After surgery, all MNO patients reported a significant improvement in both subjective and objective outcomes, this improvement being higher in CRSwNP. We concluded that in daily clinical practice, the therapeutic recommendation for MNO should be based on both subjective and objective outcomes, nasal corrective surgery being the treatment of choice in MNO, either isolated or associated to upper airway inflammatory diseases, AR or CRSwNP.
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Affiliation(s)
- Carla Merma-Linares
- Department of Otorhinolaryngology- Head and Neck Surgery, Hospital Universitari de Tarragona Joan XXIII, Doctor Mallafre Guasch 4, 43005, Tarragona, Catalonia, Spain.
- Institut d'Investigació Sanitària Pere Virgili, Tarragona, Catalonia, Spain.
- Clinical & Experimental Respiratory Immunoallergy, Institute of Biomedical Research "August Pi i Sunyer" (IDIBAPS), CIBERES, Barcelona, Catalonia, Spain.
- Universitat Rovira i Virgili, Tarragona, Spain.
| | - M Dolores Martinez
- Department of Otorhinolaryngology- Head and Neck Surgery, Hospital Universitari de Tarragona Joan XXIII, Doctor Mallafre Guasch 4, 43005, Tarragona, Catalonia, Spain
- Institut d'Investigació Sanitària Pere Virgili, Tarragona, Catalonia, Spain
| | - Miriam Gonzalez
- Department of Otorhinolaryngology- Head and Neck Surgery, Hospital Universitari de Tarragona Joan XXIII, Doctor Mallafre Guasch 4, 43005, Tarragona, Catalonia, Spain
- Institut d'Investigació Sanitària Pere Virgili, Tarragona, Catalonia, Spain
| | - Isam Alobid
- Skull Base Unit, ENT department, Hospital Clinic of Barcelona, Barcelona, Spain
- Clinical & Experimental Respiratory Immunoallergy, Institute of Biomedical Research "August Pi i Sunyer" (IDIBAPS), CIBERES, Barcelona, Catalonia, Spain
| | - Enric Figuerola
- Department of Otorhinolaryngology- Head and Neck Surgery, Hospital Universitari de Tarragona Joan XXIII, Doctor Mallafre Guasch 4, 43005, Tarragona, Catalonia, Spain
- Institut d'Investigació Sanitària Pere Virgili, Tarragona, Catalonia, Spain
| | - Joaquim Mullol
- Department of Otorhinolaryngology, Rhinology Unit & Smell Clinic, ENT Department, Hospital Clínic of Barcelona, Barcelona, Catalonia, Spain.
- Clinical & Experimental Respiratory Immunoallergy, Institute of Biomedical Research "August Pi i Sunyer" (IDIBAPS), CIBERES, Barcelona, Catalonia, Spain.
- Universitat de Barcelona, Barcelona, Spain.
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Song J, Wang M, Wang C, Zhang L. Olfactory dysfunction in chronic rhinosinusitis: insights into the underlying mechanisms and treatments. Expert Rev Clin Immunol 2023; 19:993-1004. [PMID: 37432663 DOI: 10.1080/1744666x.2023.2235891] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 07/07/2023] [Indexed: 07/12/2023]
Abstract
INTRODUCTION Olfactory dysfunction (OD) is a typical symptom of chronic rhinosinusitis (CRS), which adversely affects the patient's quality of life and results in mood depression. Studies investigating the impairment of olfactory epithelium (OE) have indicated that inflammation-induced cell damage and dysfunction in OE plays a vital role in the development of OD. Consequently, glucocorticoids and biologics are beneficial in the management of OD in CRS patients. However, the mechanisms underlying OE impairment in CRS patients have not been fully elucidated. AREAS COVERED This review focuses on mechanisms underlying inflammation-induced cell impairment in OE of CRS patients. Additionally, the methods used for detection of olfaction and both currently available and potentially new clinical treatments for OD are reviewed. EXPERT OPINION Chronic inflammation in OE impairs not only olfactory sensory neurons but also non-neuronal cells that are responsible for regeneration and support for neurons. The current treatment for OD in CRS is mainly aimed at attenuating and preventing inflammation. Strategies for use of combinations of these therapies may achieve greater efficacy in restoration of the damaged OE and consequently better management of OD.
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Affiliation(s)
- Jing Song
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
| | - Ming Wang
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Nasal Diseases, Beijing Laboratory of Allergic Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Chengshuo Wang
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Nasal Diseases, Beijing Laboratory of Allergic Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Luo Zhang
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Nasal Diseases, Beijing Laboratory of Allergic Diseases, Beijing Institute of Otolaryngology, Beijing, China
- Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China
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11
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De Corso E, Settimi S, Montuori C, Cantiani A, Corbò M, Di Bella GA, Sovardi F, Pagella F, Rigante M, Passali GC, Paludetti G, Galli J. How to manage recurrences after surgery in CRSwNP patients in the biologic era: a narrative review. ACTA OTORHINOLARYNGOLOGICA ITALICA : ORGANO UFFICIALE DELLA SOCIETA ITALIANA DI OTORINOLARINGOLOGIA E CHIRURGIA CERVICO-FACCIALE 2023; 43:S3-S13. [PMID: 37698095 PMCID: PMC10159635 DOI: 10.14639/0392-100x-suppl.1-43-2023-01] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 01/30/2023] [Indexed: 09/13/2023]
Abstract
Objective This narrative review analyses factors affecting recurrence of Chronic rhinosinusitis with nasal polyps (CRSwNP) after surgery, such as type, extension and completeness of endoscopic sinus surgery (ESS). We also described new implications in the management of recurrences after the advent of biologics. Methods We identified four topics: definition of disease state; factors linked to recurrence of polyps; evaluation and management of recurrence in clinical practice. Results We analysed the differences between exacerbation and recurrence, as well as the concept of "controlled disease". We focused on potential predictors of recurrence after ESS, such as type 2 inflammation, asthma, aspirin-exacerbated respiratory disease, incomplete initial surgery and lack of adherence to long-term post-operative local corticosteroids. We discussed the new aspects of diagnosis and treatment of recurrences after surgery, summarising our suggestions in a detailed algorithm for practical management of patients with recurrent disease. Conclusions The results emphasised the importance of accurate evaluation of patients with CRSwNP recurrence, focusing on the reasons of failure and risk of disease progression, in order to guide personalised interventions. It is crucial to define the concept of appropriate surgery, which affects the choice between starting a biologic or repeating surgery.
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Affiliation(s)
- Eugenio De Corso
- Unit of Otorhinolaryngology, “A. Gemelli” University Hospital Foundation IRCCS, Rome, Italy
| | - Stefano Settimi
- Unit of Otorhinolaryngology, “A. Gemelli” University Hospital Foundation IRCCS, Rome, Italy
- Department of Head, Neck and Sensory Organs, Catholic University of Sacred Heart, Rome, Italy
| | - Claudio Montuori
- Department of Head, Neck and Sensory Organs, Catholic University of Sacred Heart, Rome, Italy
| | - Alessandro Cantiani
- Department of Head, Neck and Sensory Organs, Catholic University of Sacred Heart, Rome, Italy
| | - Marco Corbò
- Department of Head, Neck and Sensory Organs, Catholic University of Sacred Heart, Rome, Italy
| | | | - Fabio Sovardi
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Fabio Pagella
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Mario Rigante
- Unit of Otorhinolaryngology, “A. Gemelli” University Hospital Foundation IRCCS, Rome, Italy
| | - Giulio Cesare Passali
- Unit of Otorhinolaryngology, “A. Gemelli” University Hospital Foundation IRCCS, Rome, Italy
- Department of Head, Neck and Sensory Organs, Catholic University of Sacred Heart, Rome, Italy
| | - Gaetano Paludetti
- Unit of Otorhinolaryngology, “A. Gemelli” University Hospital Foundation IRCCS, Rome, Italy
| | - Jacopo Galli
- Unit of Otorhinolaryngology, “A. Gemelli” University Hospital Foundation IRCCS, Rome, Italy
- Department of Head, Neck and Sensory Organs, Catholic University of Sacred Heart, Rome, Italy
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12
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Schneider S, Poglitsch K, Morgenstern C, Quint T, Gangl K, Sinz C, Bartosik T, Campion NJ, Liu DT, Landegger LD, Tu A, Stanek V, Rocha-Hasler M, Bangert C, Eckl-Dorna J. Dupilumab increases aspirin tolerance in NSAID-exacerbated respiratory disease. Eur Respir J 2023; 61:13993003.01335-2022. [PMID: 36549708 PMCID: PMC10017890 DOI: 10.1183/13993003.01335-2022] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/14/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Nonsteroidal anti-inflammatory drug (NSAID)-exacerbated respiratory disease (N-ERD) comprises the triad of chronic rhinosinusitis with nasal polyps, asthma and intolerance to NSAIDs. Dupilumab treatment, targeting the interleukin-4 (IL-4) receptor α, significantly reduces polyp burden as well as asthma symptoms. Here we aimed to investigate the effect of dupilumab on aspirin intolerance, burden of disease and nasal cytokine profiles in patients with N-ERD. METHODS In this open-label trial, adult patients with confirmed N-ERD were treated with dupilumab for 6 months. Clinical parameters (e.g. total polyp scores, quality of life questionnaires, smell test, spirometry), oral aspirin provocation testing and blood, nasal and urine sampling were monitored at regular intervals for up to 6 months after starting dupilumab therapy. RESULTS Of the 31 patients included in the study, 30 completed both aspirin provocation tests. After 6 months of treatment with dupilumab, 23% of patients (n=7 of 30) developed complete aspirin tolerance and an additional 33% of patients (n=10 of 30) tolerated higher doses. Polyp burden was significantly reduced (total polyp score: -2.68±1.84, p<0.001), while pulmonary symptoms (asthma control test: +2.34±3.67, p<0.001) and olfactory performance improved (University of Pennsylvania Smell Identification Test: +11.16±9.54, p<0.001) in all patients after therapy. Patients with increased aspirin tolerance showed a significant decrease in urinary leukotriene E4 levels and their improvement in clinical parameters was associated with a reduction of eotaxin-1, C-C motif chemokine ligand 17, IL-5, IL-17A and IL-6. CONCLUSION In this study, 57% of N-ERD patients tolerated higher doses of aspirin under dupilumab therapy.
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Affiliation(s)
- Sven Schneider
- Dept of Otorhinolaryngology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - Katharina Poglitsch
- Dept of Dermatology, General Hospital and Medical University of Vienna, Vienna, Austria
| | | | - Tamara Quint
- Dept of Dermatology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - Katharina Gangl
- Dept of Otorhinolaryngology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - Christoph Sinz
- Dept of Dermatology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - Tina Bartosik
- Dept of Otorhinolaryngology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - Nicholas James Campion
- Dept of Otorhinolaryngology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - David Tianxiang Liu
- Dept of Otorhinolaryngology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - Lukas David Landegger
- Dept of Otorhinolaryngology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - Aldine Tu
- Dept of Otorhinolaryngology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - Victoria Stanek
- Dept of Otorhinolaryngology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - Marianne Rocha-Hasler
- Dept of Otorhinolaryngology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - Christine Bangert
- Dept of Dermatology, General Hospital and Medical University of Vienna, Vienna, Austria
| | - Julia Eckl-Dorna
- Dept of Otorhinolaryngology, General Hospital and Medical University of Vienna, Vienna, Austria
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13
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Abdulghany A, Surda P, Hopkins C. Core Outcome Measures in Chronic Rhinosinusitis With Nasal Polyps: In Practice and Research. Am J Rhinol Allergy 2023; 37:232-239. [PMID: 36848282 DOI: 10.1177/19458924231154070] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Heterogeneity in outcomes used in clinical trials prevents meta-analysis and contributes to research waste. Core outcome sets aim to address this by defining a small number of essential outcomes that should be measured in all effectiveness trials. Adoption in routine clinical practice can further improve outcomes for patients.There has been a rapid growth in therapeutic options available for patients with chronic rhinosinusitis with nasal polyps, but difficulty comparing results leads to uncertainty into optimum management, and there is a need to define a core outcome set. We consider whether work already undertaken needs to be modified for patients with nasal polyps.We recommend that a core outcome set should include assessment of disease specific quality of life, nasal polyp score, evaluation of sense of smell, alongside need for OCS and surgical treatment and complications from the disease or treatment. Further work is required to achieve international consensus regarding the choice of nasal polyp scoring system.
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Affiliation(s)
| | - Pavol Surda
- ENT Department, Guy's and St Thomas' NHS Trust, London, UK
| | - Claire Hopkins
- ENT Department, Guy's and St Thomas' NHS Trust, London, UK
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14
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Chen T, Chidarala S, Young G, Jeong SS, Nguyen SA, Edwards TS, Schlosser RJ. Association of computed tomography scores to psychophysical measures of olfaction: A systematic review and meta-analysis. Int Forum Allergy Rhinol 2023; 13:151-159. [PMID: 35771157 DOI: 10.1002/alr.23053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/03/2022] [Accepted: 06/22/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND While various sinus computed tomography (CT) scoring systems have been proposed and used in the literature, no single system has been identified as superior. The strength of associations between CT scoring systems and measures of olfaction also remains unclear. METHODS A systematic review of PubMed, CINAHL, Scopus, and the Cochrane Library was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Studies that reported both CT scores and measures of olfaction in a cross-sectional manner were included. RESULTS A total of 37 studies were eligible for meta-analysis. Of 8035 patients with chronic rhinosinusitis, 55.6% were male patients and 53.2% had chronic rhinosinusitis with nasal polyps. Analysis by meta-regression was performed of Lund-Mackay (LM) versus Smell Identification Test-40 (SIT-40; 12 studies), Brief Smell Identification Test (BSIT; 10 studies), Sniffin' Sticks (SS; 10 studies), and Toyota & Takagi (T&T) olfactometry (four studies). A significant moderate association was found between LM and SIT-40 (R2 = 0.612, p < 0.001) and LM and SS (R2 = 0.612, p < 0.001). An association between LM and BSIT approached significance (R2 = 0.461, p = 0.054). No significant associations were noted between LM and T&T olfactometry and between LM and SS when stratified by nasal polyp status. CONCLUSION There is a significant moderate association of current CT scoring systems to SIT-40 and SS. Further research should focus on associations of objective measures of olfaction to CT scores of the nasal cavity, sinuses, and olfactory cleft, as well as other disease markers.
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Affiliation(s)
- Tiffany Chen
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, South Carolina, USA
| | - Shreya Chidarala
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, South Carolina, USA
| | - Gabrielle Young
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, South Carolina, USA
| | - Seth S Jeong
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, South Carolina, USA
| | - Shaun A Nguyen
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, South Carolina, USA
| | - Thomas S Edwards
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, South Carolina, USA
| | - Rodney J Schlosser
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, South Carolina, USA
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15
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Zawawi F, Dell S, Wolter NE, Papsin BC, Propst EJ. Olfaction and Gustation in Children With Primary Ciliary Dyskinesia. OTO Open 2023; 7:e28. [PMID: 36998551 PMCID: PMC10046730 DOI: 10.1002/oto2.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 12/07/2022] [Accepted: 12/19/2022] [Indexed: 02/19/2023] Open
Abstract
Objective Primary ciliary dyskinesia (PCD) is a rare autosomal recessive disorder whereby abnormal cilia cause a wide array of respiratory tract manifestations including chronic rhinosinusitis. The purpose of this study was to determine whether olfaction and gustation are impaired in children with PCD. Study Design Cross-sectional study. Setting Tertiary pediatric academic hospital. Methods Children with confirmed PCD based on having at least 1 of 3 approved diagnostic criteria as per The American Thoracic Society guidelines were recruited from The PCD Clinic in our tertiary care pediatric hospital. Odor identification ability was tested using the Universal Sniff (U-Sniff) test and taste threshold was measured using an electrogustometer. The main outcome of this study is to determine the incidence of olfactory dysfunction in children with PCD and investigate if there is an associated gustatory dysfunction. Results Twenty-five children participated (14 male, 11 female), The median age was 10.8 years (range: 4.1-17.9 years). Only 4/25 (16%) complained of olfactory dysfunction prior to testing. None of the patients complained of dysgeusia. However, 48% (12/25) scored less than 7 on the U-Sniff, signifying hyposmia or anosmia. In contrast, scores obtained by electrogustometry were in the normal range. There was no correlation between performance on the U-Sniff and electrogustometry testing. Conclusion Olfactory impairment in children with PCD is common but underrecognized by patients. This is not associated with abnormal gustation. Among other, this places children with PCD at an increased risk with respect to smelling a fire or detecting spoiled or poisonous food.
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Affiliation(s)
- Faisal Zawawi
- Department of Otolaryngology–Head and Neck Surgery Hospital for Sick Children Toronto Ontario Canada
- Department of Otolaryngology–Head and Neck Surgery King Abdulaziz University Jeddah Saudi Arabia
| | - Sharon Dell
- Department of Pediatrics, Division of Respiratory Medicine, BC Children's Hospital University of British Columbia Vancouver British Columbia Canada
| | - Nikolaus E. Wolter
- Department of Otolaryngology–Head and Neck Surgery Hospital for Sick Children Toronto Ontario Canada
| | - Blake C. Papsin
- Department of Otolaryngology–Head and Neck Surgery Hospital for Sick Children Toronto Ontario Canada
| | - Evan J. Propst
- Department of Otolaryngology–Head and Neck Surgery Hospital for Sick Children Toronto Ontario Canada
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16
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Ottaiano AC, Freddi TDAL, Lucio LL. The Olfactory Nerve: Anatomy and Pathology. Semin Ultrasound CT MR 2022; 43:371-377. [DOI: 10.1053/j.sult.2022.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Kikuta S, Kuboki A, Yamasoba T. Protective Effect of Insulin in Mouse Nasal Mucus Against Olfactory Epithelium Injury. Front Neural Circuits 2022; 15:803769. [PMID: 35002636 PMCID: PMC8733614 DOI: 10.3389/fncir.2021.803769] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 11/26/2021] [Indexed: 11/15/2022] Open
Abstract
Insulin is present in nasal mucus and plays an important role in the survival and activity of individual olfactory sensory neurons (OSNs) via insulin receptor-mediated signaling. However, it is unclear whether insulin acts prophylactically against olfactotoxic drug-induced olfactory epithelium (OE) injury, and whether the degree of damage is affected by the concentration of insulin in the nasal mucus. The apoptosis-inducing drug methimazole was administered to the nasal mucus of diabetic and normal mice along with different concentrations of insulin. Immunohistochemical analysis was used to assess the relationship between damage to the OE and the mucus insulin concentration and the protective effect of insulin administration against eosinophilic cationic protein (ECP)-induced OE injury. Diabetic mice had lower concentrations of insulin in their nasal mucus than normal mice (diabetic vs. normal mice, p < 0.001). Methimazole administration reduced the number of OSNs in normal mice and had a more marked effect in diabetic mice. However, unilateral insulin administration prevented the methimazole-induced reduction in the number of OSNs on the ipsilateral side but not on the contralateral side (OSNs; Insulin vs. contralateral side, p < 0.001). Furthermore, intranasal ECP administration damaged the OE by inducing apoptosis (OSNs; ECP vs. contralateral side, p < 0.001), but this damage was largely prevented by insulin administration (OSNs; Insulin + ECP vs. contralateral side, p = 0.36), which maintained the number of mature OSNs. The severity of methimazole-induced damage to the OE is related to the insulin concentration in the nasal mucus (Correlation between the insulin concentration in nasal mucus and the numbers of OSNs, R2 = 0.91, p < 0.001), which may imply that nasal insulin protects OSNs and that insulin administration might lead to the development of new therapeutic agents for ECP-induced OE injury.
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Affiliation(s)
- Shu Kikuta
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo, Japan
| | - Akihito Kuboki
- Department of Otorhinolaryngology, The Jikei University School of Medicine, Minato, Japan
| | - Tatsuya Yamasoba
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo, Japan
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Lakshmanan HG, Miller E, White-Canale A, McCluskey LP. Immune responses in the injured olfactory and gustatory systems: a role in olfactory receptor neuron and taste bud regeneration? Chem Senses 2022; 47:bjac024. [PMID: 36152297 PMCID: PMC9508897 DOI: 10.1093/chemse/bjac024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Sensory cells that specialize in transducing olfactory and gustatory stimuli are renewed throughout life and can regenerate after injury unlike their counterparts in the mammalian retina and auditory epithelium. This uncommon capacity for regeneration offers an opportunity to understand mechanisms that promote the recovery of sensory function after taste and smell loss. Immune responses appear to influence degeneration and later regeneration of olfactory sensory neurons and taste receptor cells. Here we review surgical, chemical, and inflammatory injury models and evidence that immune responses promote or deter chemosensory cell regeneration. Macrophage and neutrophil responses to chemosensory receptor injury have been the most widely studied without consensus on their net effects on regeneration. We discuss possible technical and biological reasons for the discrepancy, such as the difference between peripheral and central structures, and suggest directions for progress in understanding immune regulation of chemosensory regeneration. Our mechanistic understanding of immune-chemosensory cell interactions must be expanded before therapies can be developed for recovering the sensation of taste and smell after head injury from traumatic nerve damage and infection. Chemosensory loss leads to decreased quality of life, depression, nutritional challenges, and exposure to environmental dangers highlighting the need for further studies in this area.
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Affiliation(s)
- Hari G Lakshmanan
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Elayna Miller
- Department of Medical Illustration, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - AnnElizabeth White-Canale
- Department of Medical Illustration, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Lynnette P McCluskey
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
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