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Galvão JGFM, Cavalcante-Silva LHA, de Almeida Lima É, Carvalho DC, Alves AF, Mascarenhas SR. Ouabain modulates airway remodeling caused by Th2-high asthma in mice. Int Immunopharmacol 2022; 109:108808. [DOI: 10.1016/j.intimp.2022.108808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/05/2022] [Accepted: 04/24/2022] [Indexed: 11/05/2022]
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Jung HJ, Chung YJ, Choi YS, Chung PS, Mo JH. Clinical Efficacy and Safety of Low-Level Laser Therapy in Patients with Perennial Allergic Rhinitis: A Randomized, Double-Blind, Placebo-Controlled Trial. J Clin Med 2021; 10:jcm10040772. [PMID: 33671931 PMCID: PMC7919054 DOI: 10.3390/jcm10040772] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/11/2021] [Accepted: 02/11/2021] [Indexed: 11/25/2022] Open
Abstract
Allergic rhinitis (AR) is a common disease that interferes with the daily activities and reduces the quality of life. Conventional treatments often do not provide complete resolution of the symptoms, and many new treatment modalities have been tried. This study aimed to evaluate the efficacy and safety of low-level laser therapy (LLLT) for AR in a randomized, double-blind, placebo-controlled trial. Patients diagnosed with AR were randomly allocated to receive LLLT or sham treatment. The primary outcome was a change in the reflective total nasal symptom score (TNSS). The secondary outcome was quality of life scores assessed using the Rhinoconjunctivitis Quality of Life Questionnaire. Incidences of adverse events were also recorded. Among 67 randomized subjects, 41 subjects (22 in LLLT group and 19 in sham treatment group) were included for efficacy analysis. The LLLT group showed a significantly improved TNSS score compared to the sham treatment group for decreasing AR symptom severity (p = 0.011) and improving quality of life regarding nasal symptoms (p = 0.036) at the end of treatment. Throughout the treatment period, no severe adverse events occurred. This clinical trial showed that LLLT is an effective and safe option for the management of AR regarding symptom relief and quality of life improvement.
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Affiliation(s)
- Hahn Jin Jung
- Department of Otorhinolaryngology-Head and Neck Surgery, Chungbuk National University College of Medicine, Chungbuk National University Hospital, Cheongju 361711, Korea; (H.J.J.); (Y.-S.C.)
| | - Young-Jun Chung
- Department of Otorhinolaryngology, Dankook University College of Medicine, Cheonan 31116, Korea; (Y.-J.C.); (P.S.C.)
- Beckman Laser Institute Korea, Dankook University College of Medicine, Cheonan 31116, Korea
- Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan 31116, Korea
| | - Young-Seok Choi
- Department of Otorhinolaryngology-Head and Neck Surgery, Chungbuk National University College of Medicine, Chungbuk National University Hospital, Cheongju 361711, Korea; (H.J.J.); (Y.-S.C.)
| | - Phil Sang Chung
- Department of Otorhinolaryngology, Dankook University College of Medicine, Cheonan 31116, Korea; (Y.-J.C.); (P.S.C.)
- Beckman Laser Institute Korea, Dankook University College of Medicine, Cheonan 31116, Korea
- Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan 31116, Korea
| | - Ji-Hun Mo
- Department of Otorhinolaryngology, Dankook University College of Medicine, Cheonan 31116, Korea; (Y.-J.C.); (P.S.C.)
- Beckman Laser Institute Korea, Dankook University College of Medicine, Cheonan 31116, Korea
- Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan 31116, Korea
- Correspondence: ; Tel.: +82-40-550-3933
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Kahveci OK, Kuzu S, Altıntaş M, Vurmaz A, Çelik S. The Effect of Nasal Steroid and Antihistamine Use on Total Oxidative Stress and Antioxidant Status in the Treatment of Allergic Rhinitis. Am J Rhinol Allergy 2020; 35:52-58. [PMID: 32551922 DOI: 10.1177/1945892420932768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
INTRODUCTION The purpose of this study is to determine the post-treatment levels of total oxidant status (TOS) and total antioxidant status (TAS), that are increased due to pathophysiology, and to compare those with pre-treatment levels in allergic rhinitis patients.Material-Methods: Among 84 patients clinically diagnosed with allergic rhinitis, 31 patients were started only on nasal steroid treatment (mometasone furoate), and 53 patients were started on nasal steroid and oral antihistamine treatment (mometasone furoate + rupatadine fumarate 10 mg). Blood samples were taken from the patients at the first examination and at post-treatment month 1.TAS and TOS were measured from the blood samples. RESULTS While no significant change was determined in mean TAS levels with treatment, a statistically significant decrease was determined in TOS values in post-treatment period (P < .01). There was no significant change in TAS and TOS values of patients only using nasal steroids, while a significant decrease was determined in post-treatment TOS values of patients using both nasal steroids and oral antihistamines (P < .001). It was determined that TOS values of women were significantly lower compared to men, and it was also reduced in seasonal allergic rhinitis compared to perennial allergic rhinitis (P < .05 for both). CONCLUSION In allergic rhinitis patients, concomitant use of nasal steroids and antihistamines significantly decreases total oxidative stress. It may be stated that the addition of antihistamines to allergic rhinitis treatment positively affects treatment.
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Affiliation(s)
- Orhan Kemal Kahveci
- Department of Otorhinolaryngology, Afyon Health Sciences University Medical Faculty, Afyonkarahisar, Turkey
| | - Selçuk Kuzu
- Department of Otorhinolaryngology, Afyon Health Sciences University Medical Faculty, Afyonkarahisar, Turkey
| | | | - Ayhan Vurmaz
- Department of Medical Biochemistry, Afyon Health Sciences University Medical Faculty, Afyonkarahisar, Turkey
| | - Sefa Çelik
- Department of Medical Biochemistry, Afyon Health Sciences University Medical Faculty, Afyonkarahisar, Turkey
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Chen Z, Deng Y, Li F, Xiao B, Zhou X, Tao Z. MicroRNA-466a-3p attenuates allergic nasal inflammation in mice by targeting GATA3. Clin Exp Immunol 2019; 197:366-375. [PMID: 31081939 DOI: 10.1111/cei.13312] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2019] [Indexed: 12/25/2022] Open
Abstract
Allergic rhinitis is thought to be an allergic disease associated with immunoglobulin (Ig)E-mediated immune response, characterized by increased T helper type 2 (Th2) cytokine production, elevated eosinophil levels in the nasal mucosa and induced nasal secretions. MicroRNA (miRNA) microarray data revealed that the expression level of miR-466a-3p was significantly decreased. Notably, GATA binding protein (GATA-3) was identified as one of its target genes through miRNA target prediction web tools. The expression levels of miR-466a-3p were altered by mimics and lentivirus both in vivo and in vitro, similar to those of GATA-3. Furthermore, the symptoms and histology of allergic rhinitis as well as the levels of serum IgE and interleukin (IL)-4 were examined in different groups of mice. Interestingly, the results for lentiviral miR-466a-3p-treated allergic rhinitis mice were relatively similar to normal mice, compared to allergic rhinitis mice without treatment. Also, miR-466a-3p negatively regulated GATA-3 expression in allergic rhinitis mice, indicating the participant of Th2-cell responses in allergic rhinitis. Taken together, our findings highlight a new perspective on the role of miR-466a-3p in allergic rhinitis. In addition, this study provides a theoretical framework and experimental reference for future research targeting microRNAs as therapeutic targets and diagnostic biomarkers of allergic rhinitis.
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Affiliation(s)
- Z Chen
- Department of Otolaryngology Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Y Deng
- Department of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - F Li
- Department of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.,Research Institute of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - B Xiao
- Department of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.,Research Institute of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - X Zhou
- Department of Otolaryngology Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Z Tao
- Department of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.,Research Institute of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
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Abstract
Among the atopic disorders, allergic rhinitis is the most prevalent. Patients who suffer from allergic rhinitis sustain significant morbidity and loss of productivity. Cardinal symptoms include nasal congestion, rhinorrhea, sneezing, and nasal itching, although multiple related symptoms may occur. Causes should be ruled out with a thorough history and physical examination, with particular attention to red flag or atypical symptoms. Skin testing or serum sampling can confirm diagnosis and also guide therapy. Therapy is multimodal, tailored to a particular patient's symptom burden and quality of life.
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Affiliation(s)
- Hasan A Kakli
- Penn State Milton S. Hershey Medical Center, Department of Family & Community Medicine, 500 University Drive, Hershey, PA 17033, USA.
| | - Timothy D Riley
- Penn State Milton S. Hershey Medical Center, Department of Family & Community Medicine, 500 University Drive, Hershey, PA 17033, USA
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Hu D, Zhang Z, Ke X, Kang H, Hong S. A functional variant of miRNA-149 confers risk for allergic rhinitis and comorbid asthma in Chinese children. Int J Immunogenet 2017; 44:62-70. [PMID: 28181414 DOI: 10.1111/iji.12307] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 12/15/2016] [Accepted: 01/14/2017] [Indexed: 12/18/2022]
Abstract
The prevalence of allergic rhinitis (AR) and asthma has been increasing, and the comorbidity rates of these diseases are very high. Here, 176 AR patients, 124 patients with comorbid AR and asthma (AR-A) and 206 healthy Chinese children as controls were included in a case-control study. Six single-nucleotide polymorphisms (SNPs), miR-146a (rs2910164, rs57095329 and rs6864584), miR-196a2 (rs11614913), miR-499 (rs3746444) and miR-149 (rs2292832), were genotyped. The prevalence of homozygous miR-149 (rs2292832) CC genotype and C allele were considerably increased in AR and AR-A patients, compared with the controls. AR-A group showed higher frequencies of CC genotype and C allele of rs2292832 than AR group. No significant difference in the genotypic and allelic frequencies of other miRNA SNPs was found between the groups. MiR-149 levels in peripheral blood mononuclear cells (PBMCs) were significantly lower in CC (variant type) cases compared with TT (wild-type) cases. In further experiments, PBMCs obtained from the healthy controls with CC, CT and TT genotypes were stimulated by house dust mite extracts, which led to a significant decrease in the levels of miR-149 in PBMCs obtained from CC and TT individuals. This decrease was more pronounced in CC compared with TT cases. Our results demonstrate that miR-149 rs2292832 variant is not only strongly associated with AR and AR-A, but it may lead to an increase in the susceptibility to allergies following the stimulation with an allergen, through the changes in miR149 expression. Additionally, AR patients with CC genotypes were shown to be more susceptible to asthma.
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Affiliation(s)
- D Hu
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Z Zhang
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - X Ke
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - H Kang
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - S Hong
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Sun Y, Zhao H, Ye Y, Nie W, Bai W, Liu J, Li S, Wang F, Han M, He L. Efficacy and safety of using a warming needle for persistent allergic rhinitis: study protocol for a randomized controlled trial. Trials 2016; 17:305. [PMID: 27363578 PMCID: PMC4929718 DOI: 10.1186/s13063-016-1432-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 06/08/2016] [Indexed: 11/26/2022] Open
Abstract
Background Many previous studies have shown the potential therapeutic effect of acupuncture for allergic rhinitis. Most of these studies, however, were limited by the short duration of observations and lack of sham acupuncture as the control group. Our preliminary experiments showed that the use of a warm needling achieved a much more persistent effect in the treatment of allergic rhinitis (AR) compared with simple acupuncture therapy. Hence, we have designed a multicenter, randomized controlled trial (RCT) in which the first-line medication loratadine will be used as the control group, and the effect of warm needling therapy will be evaluated through long-term observation. Methods/design The trial is designed as a multicenter, parallel-group, randomized, single-blinded (outcome assessors), non-inferiority trial. A total of 98 patients with persistent AR will be randomly assigned into two groups. Patients in the treatment group will be treated with warm needling at GV14 and acupuncture at EX-HN3, ST2, LI20, EX-HN8, GV23, LU7, LU5 and LI4 three times a week, for a total of 4 weeks. Patients in the control group will be treated with oral loratadine 10 mg/day for 4 weeks. The primary outcome will be the change in the Total Nasal Symptom Score (TNSS) from baseline to that at 6 months after treatment during the follow-up period. The secondary outcomes will include the Total Non-nasal Symptom Score and the Rhinoconjunctivitis Quality of Life Questionnaire, changes in the TNSS from baseline to that at 2 and 4 weeks during treatment, and 3 months after treatment during the follow-up period. Outcomes will be measured at 2 and 4 weeks, and 3 and 6 months after treatment. Any side effects of treatment will be observed and recorded. Discussion We expect that the study results will provide evidence to determine the effects of warm needling compared with loratadine. Our final goal of the study is to evaluate the difference in the short-term and long-term effects between the two therapeutic methods, especially the long-term effect of warm needling. Trial registration ClinicalTrials.gov NCT02339714. Registered on 14 January 2015. Electronic supplementary material The online version of this article (doi:10.1186/s13063-016-1432-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yuxiu Sun
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China.,Hubei University of Chinese Medicine, Wuhan, 430061, China
| | - Hong Zhao
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yongming Ye
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Wenbin Nie
- Mentougou Hospital of TCM, Beijing, 102300, China
| | - Wenjing Bai
- China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jia Liu
- China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Sinuo Li
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Fang Wang
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Mingjuan Han
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Liyun He
- China Academy of Chinese Medical Sciences, Beijing, 100700, China
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8
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9
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Choi SM, Park J, Li S, Jung H, Zi M, Kim T, Jung S, Kim A, Shin M, Sul J, Hong Z, Jiping Z, Lee S, Liyun H, Kang K, Baoyan L. A multicenter, randomized, controlled trial testing the effects of acupuncture on allergic rhinitis. Allergy 2013; 68:365-74. [PMID: 23253122 DOI: 10.1111/all.12053] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2012] [Indexed: 12/15/2022]
Abstract
BACKGROUND The aim of this study was to evaluate the efficacy and safety of acupuncture in the treatment for allergic rhinitis. METHODS This study was a multicenter, randomized, parallel-controlled study. Participants were randomized to either the active acupuncture, sham acupuncture, or waitlist groups. The active and sham acupuncture groups received acupuncture treatment three times per week for 4 weeks. In the sham group, minimal acupuncture at nonacupuncture points was used. The waitlist group did not receive any acupuncture treatment. RESULTS Of the 238 participants, 97, 94, and 47 individuals were assigned to the active acupuncture, sham acupuncture, and waitlist group, respectively. After the treatment, the difference in the total nasal symptom score (TNSS) was significantly reduced in the active acupuncture group compared with the sham acupuncture (difference: -1.03, 95% confidence interval [CI]: -1.96, -0.09, P = 0.03) and waitlist (difference: -2.49, 95% CI: -3.68, -1.29, P < 0.0001). The active acupuncture group exhibited a significant change in the total non-nasal symptom score (TNNSS) compared with the waitlist (difference: -0.78, 95% CI: -1.22, -0.34, P = 0.0002), but not the sham acupuncture group (difference; 0.15, 95% CI: -0.21, 0.5, P = 0.56). Both active and sham acupuncture treatments resulted in significant improvements in TNSS and TNNSS compared to baseline. CONCLUSION Active acupuncture showed a significantly greater effect on symptoms of allergic rhinitis than either sham acupuncture or no active treatment. The symptoms of allergic rhinitis decreased significantly after treatment in the both acupuncture and sham acupuncture groups. Acupuncture appears to be an effective and safe treatment for allergic rhinitis.
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Affiliation(s)
- S. M. Choi
- Department of Medical Research Korea Institute of Oriental Medicine Daejeon South Korea
| | - J.‐E. Park
- Department of Medical Research Korea Institute of Oriental Medicine Daejeon South Korea
| | - S.‐S. Li
- Department of Medical Research Korea Institute of Oriental Medicine Daejeon South Korea
- Oriental Medical School Gachon University Seongnam South Korea
| | - H. Jung
- Department of Medical Research Korea Institute of Oriental Medicine Daejeon South Korea
| | - M. Zi
- Xiyuan Hospital of China Academy of Chinese Medical Science Beijing China
| | - T.‐H. Kim
- Department of Medical Research Korea Institute of Oriental Medicine Daejeon South Korea
| | - S. Jung
- Department of Medical Research Korea Institute of Oriental Medicine Daejeon South Korea
| | - A. Kim
- Department of Medical Research Korea Institute of Oriental Medicine Daejeon South Korea
| | - M. Shin
- Department of Medical Research Korea Institute of Oriental Medicine Daejeon South Korea
| | - J.‐U. Sul
- Department of Medical Research Korea Institute of Oriental Medicine Daejeon South Korea
- Korean Medical Hospital Pusan National University Yangsan South Korea
| | - Z. Hong
- Guang'anmen Hospital China Academy of Chinese Medical Science Beijing China
| | - Z. Jiping
- Dongzhimen Hospital Beijing University of Traditional Chinese Medicine Beijing China
| | - S. Lee
- Oriental Medical Hospital Kyung Hee University Seoul South Korea
| | - H. Liyun
- Institute of Basic Research in Clinical Medicine China Academy of Chinese Medical Sciences Beijing China
| | - K. Kang
- Department of Medical Research Korea Institute of Oriental Medicine Daejeon South Korea
| | - L. Baoyan
- China Academy of Chinese Medical Sciences Beijing China
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Scadding G, Walker S. Poor asthma control?--then look up the nose. The importance of co-morbid rhinitis in patients with asthma. PRIMARY CARE RESPIRATORY JOURNAL : JOURNAL OF THE GENERAL PRACTICE AIRWAYS GROUP 2012; 21:222-8. [PMID: 22643359 PMCID: PMC6547933 DOI: 10.4104/pcrj.2012.00035] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2011] [Revised: 02/07/2012] [Accepted: 02/22/2012] [Indexed: 01/21/2023]
Abstract
Many factors can impair asthma control. One which is frequently overlooked is rhinitis. Asthma patients with significant rhinitis are over four times more likely to have poorly controlled asthma than those without. Over 80% of patients with asthma have rhinitis, which may be allergic or inflammatory/non-allergic. Both types of rhinitis share pathophysiological similarities with eosinophilic asthma, cause bronchial hyper-reactivity, and are predisposing factors for the subsequent development of asthma. Nasal allergen challenge in allergic rhinitis results in inflammation in the bronchi as well as the nose, and the reverse is also true. This article reviews briefly the evidence for the link between asthma and rhinitis, advocates looking for rhinitis when patients present with poorly controlled asthma, and provides guidance for the diagnosis and treatment of rhinitis.
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Affiliation(s)
- Glenis Scadding
- The Royal National Throat, Nose and Ear Hospital, London, UK.
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11
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Nasal obstruction as a key symptom in allergic rhinitis: efficacy and safety of a medical device in children. Otolaryngol Pol 2012; 66:249-53. [PMID: 22890527 DOI: 10.1016/j.otpol.2012.05.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 02/10/2012] [Accepted: 05/21/2012] [Indexed: 11/24/2022]
Abstract
BACKGROUND Allergic rhinitis (AR) is a global health problem that has increased rapidly in prevalence over the past few decades. Nasal congestion, which represents a cardinal symptom of AR, appears to be difficult to treat and, especially for pediatric population, therapies that are both well tolerated and effective in relieving nasal congestion are needed. The aim of the present study was to evaluate the safety and clinical effectiveness of the medical device (lactoferrin, carboximetil β-glucan, D-panthenol, dipotassium glycyrrhizinate) in reducing the allergic rhinitis symptoms. METHODS A multicenter prospective study with a pre-post design was performed consecutively enrolling 100 pediatric patients of both genders affected by persistent AR. Patients received 2 puffs into each nostril 2 times a day over the course of 4 weeks. The severity of AR symptoms, as measured by VAS score, was assessed before and after treatment. The main outcomes were improvement in each symptom score and in overall symptom burden (as measured by average symptom scores). Differences in symptoms scores measured before and after treatment were compared using paired-sample Wilcoxon signed rank test. The proportion of participants with adverse effects attributed to the treatment was also computed. RESULTS All considered symptoms, including nasal congestion, significantly improve after treatment (p<0.001), while only 9 patients suffered adverse effects (itch, burning sensation, dryness). CONCLUSION These results confirm the efficacy and safety of this medical device in pediatric population.
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12
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Koster ES, Raaijmakers JAM, Vijverberg SJH, van der Ent CK, Maitland-van der Zee AH. Asthma symptoms in pediatric patients: differences throughout the seasons. J Asthma 2011; 48:694-700. [PMID: 21806485 DOI: 10.3109/02770903.2011.601780] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Seasonal variation in asthma has been widely recognized. The aim of this study was to describe seasonal patterns of asthma symptoms and asthma medication use in a cohort of pediatric asthma medication users and to study determinants of seasonal childhood asthma. METHODS For this study, 602 children participating in the Pharmacogenetics of Asthma medication in Children: Medication with Anti-inflammatory effects) cohort were included. Parents were asked about their child's respiratory symptoms and quick-reliever medication use over the past year. Logistic regression analysis was used to study determinants of seasonality in asthma control (the level of disease control based on symptoms, limitations in activities, and rescue medication use). RESULTS There was a decline in asthma symptoms and asthma medication use during the summer period and a peak occurred from autumn to spring. The prevalence of wheeze ranged from 32% in summer to 56% in autumn. The prevalence of respiratory symptoms and medication use was significantly lower during summer (p < .0001). Oral steroids and antibiotics use and strong parental necessity beliefs were associated with uncontrolled asthma, regardless of seasonality. Allergic rhinitis was associated with an increased risk of uncontrolled asthma during spring [odds ratio (OR): 1.9; 95% confidence interval (CI): 1.3-2.8] and summer (OR: 1.9; 95% CI: 1.2-3.0). Eczema was associated with a higher risk of uncontrolled asthma during autumn (OR: 1.5; 95% CI: 1.0-2.2) and winter (OR: 1.3; 95% CI: 1.0-1.9). CONCLUSION We showed seasonal patterns in asthma symptoms and medication use. Associations were shown between allergic rhinitis and asthma control during spring/summer and eczema was associated with uncontrolled asthma during autumn/winter. Seasonality in asthma morbidity and health-care use is most likely associated with atopic constitution and viral infections, which are common during fall, winter, and spring.
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Affiliation(s)
- Ellen S Koster
- Division of Pharmacoepidemiology & Pharmacotherapy, Faculty of Science, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, The Netherlands
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13
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TRPA1 is required for histamine-independent, Mas-related G protein-coupled receptor-mediated itch. Nat Neurosci 2011; 14:595-602. [PMID: 21460831 PMCID: PMC3181150 DOI: 10.1038/nn.2789] [Citation(s) in RCA: 447] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Accepted: 02/28/2011] [Indexed: 12/28/2022]
Abstract
Itch, the unpleasant sensation that evokes a desire to scratch, accompanies numerous skin and nervous system disorders. In many cases, pathological itch is insensitive to antihistamine treatment. Recent studies have identified members of the Mas-related G protein-coupled receptor (Mrgpr) family that are activated by mast cell mediators and promote histamine-independent itch. MrgprA3 and MrgprC11 act as receptors for the pruritogens chloroquine and BAM8-22, respectively. However, the signaling pathways and transduction channels activated downstream of these pruritogens are largely unknown. We found that TRPA1 is the downstream target of both MrgprA3 and MrgprC11 in cultured sensory neurons and heterologous cells. TRPA1 is required for Mrgpr-mediated signaling, as sensory neurons from TRPA1-deficient mice exhibited markedly diminished responses to chloroquine and BAM8-22. Similarly, TRPA1-deficient mice displayed little to no scratching in response to these pruritogens. Our findings indicate that TRPA1 is an essential component of the signaling pathways that promote histamine-independent itch.
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14
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Strider JW, Masterson CG, Durham PL. Treatment of mast cells with carbon dioxide suppresses degranulation via a novel mechanism involving repression of increased intracellular calcium levels. Allergy 2011; 66:341-50. [PMID: 21284650 DOI: 10.1111/j.1398-9995.2010.02482.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Intranasal noninhaled delivery of carbon dioxide (CO₂) is efficacious in the symptomatic treatment of seasonal allergic rhinitis. The goal of this study was to determine whether and how 100% CO₂ inhibits mast cell degranulation, thereby possibly contributing to the reduction of symptoms in seasonal allergic rhinitis. METHODS Peritoneal mast cells isolated from rats and labelled with sulforhodamine-B (SFRM-B) were used to determine whether CO₂ treatment could block mast cell degranulation and histamine release in response to 48/80. In addition, the effect of CO₂ on intracellular calcium levels in unstimulated and stimulated mast cells was determined by fluorescent microscopy. RESULTS Treatment with 48/80 caused >90% of mast cells containing SFRM-B to degranulate, resulting in a marked decrease in the fluorescent intensity within the mast cells, and simultaneously causing a significant increase in histamine release. Significantly, the stimulatory effect of 48/80 on fluorescent intensity and histamine levels was greatly inhibited (>95%) to near control levels by pretreatment with 100% CO₂. Treatment with 48/80 also caused a robust transient increase in intracellular calcium, whereas pretreatment with CO₂ repressed the increase in calcium (>70%) in response to 48/80. CONCLUSIONS Results from this study provide the first evidence of a unique regulatory mechanism by which CO₂ inhibits mast cell degranulation and histamine release by repressing stimulated increases in intracellular calcium. Thus, our data provide a plausible explanation for the reported therapeutic benefit of noninhaled intranasal delivery of 100% CO₂ to treat allergic rhinitis.
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Affiliation(s)
- J W Strider
- Center for Biomedical & Life Sciences, Missouri State University, Springfield, MO, USA
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Zhao CQ, Li TL, He SH, Chen X, An YF, Wu WK, Zhou XH, Li P, Yang PC. Specific immunotherapy suppresses Th2 responses via modulating TIM1/TIM4 interaction on dendritic cells. Allergy 2010; 65:986-95. [PMID: 20028372 DOI: 10.1111/j.1398-9995.2009.02295.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Specific immunotherapy (SIT) is the only curable remedy for allergic disorders currently; however, the underlying mechanism is not fully understood yet. This study aimed to elucidate the mechanism of SIT on suppressing TIM4 (T cell immunoglobulin mucin domain molecule 4) expression in dendritic cells (DCs) and modulating the skewed T helper 2 (Th2) responses in patients with airway allergy. METHODS Twenty patients with allergic rhinitis (AR) were treated with SIT for 3 months. Before and after SIT, the expression of TIM4 in peripheral DC and TIM1 in Th2 cells was examined. The role of Fc gamma receptor (FcgammaR) I and II in modulating the expression of TIM4 in DCs was investigated. RESULTS The interaction of TIM1/TIM4 played a critical role in sustaining the polarization status of Th2 cells in AR patients. Cross-linking FcgammaRI by antigen/IgG complexes increased the production of TIM4 by dendritic cells via upregulating tumor necrosis factor-alpha in DCs. Exposure to microbial products promoted the expression of FcgammaRI in DCs that further increased the expression of TIM4. Exposure to specific antigens alone upregulated the expression of FcgammaRII in DCs, that suppressed the expression of TIM4. CONCLUSIONS We conclude that SIT suppresses the skewed Th2 responses via disrupting the interaction of TIM1/TIM4 in antigen-specific Th2 cells.
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Affiliation(s)
- C-Q Zhao
- Department of Otolaryngology, Head and Neck Surgery, the Second Hospital, Shanxi Medical University, Taiyuan, Shanxi, China.
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Stebbins KJ, Broadhead AR, Correa LD, Scott JM, Truong YP, Stearns BA, Hutchinson JH, Prasit P, Evans JF, Lorrain DS. Therapeutic efficacy of AM156, a novel prostanoid DP2 receptor antagonist, in murine models of allergic rhinitis and house dust mite-induced pulmonary inflammation. Eur J Pharmacol 2010; 638:142-9. [DOI: 10.1016/j.ejphar.2010.04.031] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 03/23/2010] [Accepted: 04/19/2010] [Indexed: 01/24/2023]
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Chou YL, Wu CC, Wang HW. Effects of bambuterol and terbutaline on isolated rat's tracheal smooth muscle. Eur Arch Otorhinolaryngol 2009; 267:1305-11. [PMID: 20012638 DOI: 10.1007/s00405-009-1173-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Accepted: 11/26/2009] [Indexed: 11/30/2022]
Abstract
Terbutaline (Bricanyl) and its prodrug Bambuterol (Bambec) are highly potent beta(2)-adrenoceptor agonists often used in asthma patients. Terbutaline in the form of inhaled short-acting bronchodilator relieves asthmatic symptoms. However, the effects of bambuterol given intratracheally have rarely been explored. To verify the effect of bambuterol and terbutaline, which act on the tracheal smooth muscle directly in vitro, we used our preparation to test the effects of bambuterol on isolated rat's tracheal smooth muscle compared with terbutaline. The following assessments of bambuterol and terbutaline were performed: (1) effect on tracheal smooth muscle resting tension; (2) effect on contraction caused by 10(-6) M methacholine as a parasympathetic mimetic; (3) effect of the drugs on electrically induced tracheal smooth muscle contractions. The results indicated that adding bambuterol induced a significant further contraction to 10(-6) M methacholine-induced contraction when the preparation was increased to 10(-4) M. But terbutaline elicited a relaxation response at a dose of 10(-6) M or more. Both bambuterol and terbutaline could inhibit electrical field stimulation (EFS) induced spike contraction. Terbutaline had an anti-cholinergic effect that could relieve asthmatic symptoms. But the effect of bambuterol acting on tracheal smooth muscle directly was controversial.
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Affiliation(s)
- Ying-Liang Chou
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, No. 325, Sect. 2, Cheng-Gung Road, Neihu District, 114 Taipei, Taiwan, ROC
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