Abstract:
BACKGROUND:Nasal polyposis is characterized by persistent inflammation but the pathogenesis is complex and still debatable. Autophagy has been associated with many human health problems including chronic inflammatory airway diseases. Whether autophagy plays a role in nasal polyps and could be a therapeutic target is completely unknown. METHODS:We studied light chain 3 (LC3) protein expression, a common indication of autophagy, in fresh tissue specimens of 5 nasal polyps and 6 normal nasal mucosa by Western blot analysis. The results were also confirmed by immunohistochemistry (IHC) using additional 25 paraffin-embedded nasal tissue sections. Finally the autophagic activity was validated in nasal polyp-derived fibroblasts by evaluating the number of green fluorescent protein (GFP)-labeled LC3 puncta. RESULTS:The expression of LC3 was dramatically decreased in all 5 nasal polyp tissues. In contrast, protein kinase B-mechanistic target of rapamycin (Akt-mTOR) signaling, an established negative regulator of autophagy, was significantly activated in these tissues. Immunohistochemical results further demonstrated a negative correlation between autophagy and nasal polyps (p < 0.05). GFP-LC3 puncta formation, an alternative indicator of autophagy, was also diminished in nasal polyp-derived fibroblasts (p < 0.01). CONCLUSION:Autophagy is deficient presumably due to suppression by high Akt-mTOR activity in nasal polyps, which may provide a molecular basis for future mechanistic study of the disease.
journal_name
Int Forum Allergy Rhinoljournal_title
International forum of allergy & rhinologyauthors
Chen JY,Hour TC,Yang SF,Chien CY,Chen HR,Tsai KL,Ko JY,Wang LFdoi
10.1002/alr.21456subject
Has Abstractpub_date
2015-02-01 00:00:00pages
119-23issue
2eissn
2042-6976issn
2042-6984journal_volume
5pub_type
杂志文章abstract:BACKGROUND:Multiple prospective and retrospective studies have reported results from balloon-only procedures and hybrid balloon sinus surgeries through intermediate follow-up periods of up to 1 year. Long-term durability results beyond 2 years are limited. METHODS:One-year results from the original study of standalone...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章,多中心研究
doi:10.1002/alr.21024
更新日期:2012-05-01 00:00:00
abstract:BACKGROUND:Allergic rhinitis (AR) is a chronic systemic allergic disease with an association reported between allergy and anxiety. The objective of the current study was therefore to investigate and retrospectively evaluate the factors that may possibly induce state and trait anxiety among patients with AR and vasomoto...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.21802
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:This study reviews the published literature related to extramedullary sinonasal plasmacytomas. Clinical presentation, demographics, treatment, and outcomes of this uncommon disease are reported. METHODS:A systematic review of studies for sinonasal plasmacytomas from 1950 to 2012 was conducted. A PubMed data...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章,评审
doi:10.1002/alr.21254
更新日期:2014-02-01 00:00:00
abstract:BACKGROUND:The endoscopic modified Lothrop procedure (EMLP) is used to manage ongoing refractory frontal sinusitis after failed previous endoscopic sinus surgery (ESS), but this approach has a significant restenosis rate. We evaluated the potential benefits of mucosal grafts and pedicled flaps on the opening of the new...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章,随机对照试验
doi:10.1002/alr.22416
更新日期:2019-11-01 00:00:00
abstract:BACKGROUND:Previous studies have reviewed the safety of preparing and administering allergy injection immunotherapy in a physician's office, and showed no evidence of infectious complications. The current study examines the antimicrobial properties of the common additives used in preparation of multidose immunotherapy ...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.20105
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND:The 5-year overall survival rate for patients with sinonasal cancers has remained around 50% for the last 3 decades. Prior studies on head and neck cancers have suggested that 1 reason for poor survival is the frequent development of second primary malignancies (SPMs). The purpose of this study is to assess ...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.22092
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND:Frontal sinus cerebrospinal fluid (CSF) leaks have traditionally been repaired via open procedures (eg, osteoplastic flap or cranialization). Advancements in instrumentation, technique, and experience have improved the feasibility of repairing frontal sinus skull-base defects using an endoscopic approach. Th...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.21019
更新日期:2012-05-01 00:00:00
abstract:BACKGROUND:Although nasal congestion is among the most common symptoms in subjects suffering from nasal diseases, relatively few data on normal airflow resistance are available for reference, especially in healthy Chinese subjects. The aim of present study was therefore to objectively measure the normal airflow resista...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.22177
更新日期:2018-11-01 00:00:00
abstract:BACKGROUND:The ciprofloxacin-coated sinus stent (CSS) has unique therapeutic potential to deliver antibiotics to the sinuses. The objective of this study is to evaluate the efficacy of the CSS stent in eliminating Pseudomonas aeruginosa infection in a rabbit model of sinusitis. METHODS:A ciprofloxacin-eluting sinus st...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.22081
更新日期:2018-04-01 00:00:00
abstract:BACKGROUND:The histological features of osteitis in chronic rhinosinusitis (CRS) in animal studies induced by bacterial inoculation into maxillary sinuses revealed inflammatory involvement of the underlying bone matrix and/or the Haversian system; however, human studies do not mention these findings. The objective of t...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.21291
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:Debate still persists on the relation between olfactory bulb volume (OBV) and olfactory function. Many studies suggest that olfactory deprivation decreases the OBV. The aim of this study was to compare the olfactory threshold and OBV of patients with nasal polyps to healthy individuals and to evaluate the im...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.21478
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:The management of chronic rhinosinusitis with nasal polyposis (CRSwNP) becomes unclear when patients require multiple courses of corticosteroids to maintain quality of life. Repeated courses of corticosteroids carry increased risks to patients. Although endoscopic sinus surgery (ESS) is an effective therapeu...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章,评审
doi:10.1002/alr.21377
更新日期:2014-11-01 00:00:00
abstract:BACKGROUND:Subcutaneous immunotherapy (SCIT) demands a significant time commitment on the part of the patient, especially during the escalation period when weekly visits are required. Many patients refuse or discontinue treatment in spite of the demonstrated clinical efficacy of SCIT. Understanding the factors that aff...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.21027
更新日期:2012-07-01 00:00:00
abstract:BACKGROUND:Sinonasal bitter taste receptors (T2Rs) contribute to upper airway innate immunity and correlate with chronic rhinosinusitis (CRS) clinical outcomes. A subset of T2Rs expressed on sinonasal solitary chemosensory cells (SCCs) are activated by denatonium, resulting in a calcium-mediated secretion of bactericid...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.21949
更新日期:2017-07-01 00:00:00
abstract:BACKGROUND:Chronic rhinosinusitis (CRS) has been defined as inflammation of the paranasal sinuses lasting at least 12 weeks with corresponding 2 or more "cardinal symptoms" that include: (1) nasal obstruction; (2) thick nasal discharge; (3) facial pain/pressure; and (4) reduction or loss of sense of smell. Although pri...
journal_title:International forum of allergy & rhinology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1002/alr.21410
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:The objective of this study was to evaluate the impact of bilateral inferior turbinate reduction (BITR) on patient-reported quality of life (QOL) following endoscopic sinus surgery (ESS) for chronic rhinosinusitis (CRS). METHODS:This was a prospective cohort study. Patients with CRS, who were recruited from...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.22300
更新日期:2019-06-01 00:00:00
abstract:BACKGROUND:Chronic rhinosinusitis (CRS) is associated with sleep dysfunction, but the underlying pathophysiology is poorly understood. The purpose of this study was to determine if mucosal eosinophilia or neutrophilia were associated with sleep dysfunction severity or altered the improvement in sleep dysfunction follow...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.22678
更新日期:2020-08-11 00:00:00
abstract:BACKGROUND:Chronic rhinosinusitis with nasal polyps (CRSwNP) often results in decreased olfaction. In this study, we examined the relationship between nasal polyp location and olfactory airflow and odorant transport changes using virtual nasal polyp models at different locations and computational fluid dynamics (CFD) a...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.22089
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND:This study reviews the published literature related to management of sinonasal chondrosarcoma. Clinical presentation, demographics, radiographic diagnosis, treatment, and management outcomes of this uncommon disease are reported. METHODS:A systematic review of studies for sinonasal chondrosarcoma from 1950 ...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章,评审
doi:10.1002/alr.21162
更新日期:2013-08-01 00:00:00
abstract:BACKGROUND:Sinonasal adenoid cystic carcinoma (SNACC) is a rare malignancy with a propensity for distant metastasis. In this study we describe the incidence and determinants of survival among patients with SNACC between the years 2004 and 2012 using the National Cancer Database (NCDB). METHODS:This was a retrospective...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.22255
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND:Environmental factors such as inhaled pollutants like cigarette smoke may play a significant role in diseases of the upper airway including chronic rhinosinusitis (CRS). The objectives of this review are to summarize prior studies that describe the correlation between active smoking and secondhand smoke (SHS...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章,评审
doi:10.1002/alr.21054
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Eosinophilic chronic rhinosinusitis (ECRS) is a disease characterized by eosinophilic inflammatory infiltrate and a local type 2 cytokine milieu. Current animal models fail to recapitulate many of the innate and adaptive immunologic hallmarks of the disease, thus hindering the development of effective therap...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.22072
更新日期:2018-04-01 00:00:00
abstract:BACKGROUND:Staphylococcus aureus infection is known to play a role in recalcitrant chronic rhinosinusitis (CRS). However, it is unknown if recurrent S. aureus infections are caused by the same strain or are due to independent acquisitions of different strains. METHODS:Samples were collected from patients with CRS from...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.21423
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND:Allergic rhinitis (AR) is a complex chronic inflammatory disease of the nasal mucosa, caused by an interaction between genetic and environmental factors. As evidence suggests that some genetic variants may increase susceptibility to both AR and asthma, the objective of this study was to identify asthma susce...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.21725
更新日期:2016-05-01 00:00:00
abstract:BACKGROUND:Most data on sinonasal mucosal melanoma come from small institutional studies, and therefore optimal treatment methods are not well understood. The purpose of this study was to analyze the association between treatment and survival in sinonasal mucosal melanoma. METHODS:Six hundred ninety-five patients diag...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.21831
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Orbital cavernous hemangiomas (OCH) are the most common adult orbital tumor and represent an ideal index lesion for endonasal orbital tumor surgery. In order to standardize outcomes reporting, an anatomic-based staging system was developed. METHODS:An international, multidisciplinary panel of 23 experts in ...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.22316
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND:Lumbar drain (LD) use in the management of cerebrospinal fluid (CSF) rhinorrhea remains controversial. We analyzed the relationship between LD placement and CSF leak recurrence after endoscopic repair. METHODS:A retrospective case series was conducted. Patients who underwent CSF leak repair from 1999 to 201...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.21023
更新日期:2012-05-01 00:00:00
abstract:BACKGROUND:The objective of the evidence base review was to systematically evaluate the literature to elucidate the potential role of oral antifungal therapy in management of chronic rhinosinusitis (CRS) and its subtypes. METHODS:Articles for inclusion were identified by query of appropriate search terms in the PubMed...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章,评审
doi:10.1002/alr.20088
更新日期:2011-09-01 00:00:00
abstract:BACKGROUND:Chronic rhinosinusitis with nasal polyps (CRSwNP) is prolonged inflammation of the sinonasal mucosa. Interleukin-32 (IL-32) is involved in the pathogenesis of chronic lung inflammatory diseases. The aim of study is to compare the expression level of IL-32 in normal nasal mucosa and CRSwNP and to investigate ...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.21792
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND:Spacers are inserted into the middle meatal space (MMS) following functional endoscopic sinus surgery (FESS) to prevent lateralization of the middle turbinate, scarring, and synechiae. Our objective was to determine if the incidence of postoperative synechiae, facial pain/discomfort, pain during spacer remov...
journal_title:International forum of allergy & rhinology
pub_type: 杂志文章
doi:10.1002/alr.22119
更新日期:2018-03-30 00:00:00