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18:45 EDT 15th September 2019 | BioPortfolio

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Showing PubMed Articles 276–299 of 299 from International forum of allergy & rhinology

A chronic rhinosinusitis-derived isolate of Pseudomonas aeruginosa induces acute and pervasive effects on the murine upper airway microbiome and host immune response.

Diverse microbial communities colonize healthy sinus mucosa and specific species within these communities are capable of protecting the host from pathogenic infection. However, little is known of the dynamics of upper airway infection and the role of the sinus mucosal microbiome in short- and longer-term outcomes using clinical isolates from patients with chronic rhinosinusitis.

Successful repair of intraoperative cerebrospinal fluid leaks improves outcomes in endoscopic skull base surgery.

The impact of failed cerebrospinal fluid leak (CSF) leak repair in endoscopic skull base surgery has not been adequately studied.

Reversal of cigarette smoke extract-induced sinonasal epithelial cell barrier dysfunction through Nrf2 Activation.

Environmental factors such as inhaled pollutants like cigarette smoke may play a significant role in diseases of the upper airway including chronic rhinosinusitis (CRS). Recent studies have shown that cigarette smoke causes impaired airway epithelial cell barrier function likely through environmental oxidative stress related pathways. The purpose of this study is to explore whether enhancing nuclear factor erythroid 2 [NF-E2]-related factor 2 [Nrf2], the body's master antioxidant system, can ameliorate ciga...

The Empty Nose Syndrome 6-Item Questionnaire (ENS6Q): a validated 6-item questionnaire as a diagnostic aid for empty nose syndrome patients.

Empty nose syndrome (ENS) is considered an acquired condition that remains difficult to diagnose objectively. Defining specific symptoms that can be reliably associated with this disorder would be essential to identifying possible ENS patients. We sought to validate an ENS-specific, 6-item questionnaire as an adjunct to the standard Sino-Nasal Outcome Test 22 (SNOT-22) questionnaire to discriminate patients suspected of having ENS.

Factors impacting cerebrospinal fluid leak rates in endoscopic sellar surgery.

In patients undergoing transnasal endoscopic sellar surgery, an analysis of risk factors and predictors of intraoperative and postoperative cerebrospinal fluid leak (CSF) would provide important prognostic information.

Immunoglobulin replacement therapy reduces chronic rhinosinusitis in patients with antibody deficiency.

Patients with primary antibody deficiencies have an increased frequency of sinonasal and pulmonary infections. Immunoglobulin (Ig) replacement is a standard therapy for common variable immunodeficiency (CVID) and other antibody deficiency diseases. Although there is convincing evidence that Ig replacement reduces pulmonary infections, there is little evidence that it reduces sinus infections or abates chronic rhinosinusitis (CRS). This study aims to identify the impact of Ig replacement on CRS in antibody d...

Association of olfactory dysfunction in chronic rhinosinusitis with economic productivity and medication usage.

Chronic rhinosinusitis (CRS) has significant impacts upon productivity, economic metrics, and medication usage; however, factors that are associated with these economic outcomes are unknown.

The pain-depression dyad and the association with sleep dysfunction in chronic rhinosinusitis.

Depression, pain, and sleep disturbance is a symptom cluster often found in patients with chronic illness, exerting a large impact on quality of life (QOL). A wealth of literature exists demonstrating a significant association between depression, pain, and sleep dysfunction in other chronic diseases. This relationship has not been described in patients with chronic rhinosinusitis (CRS).

Resection of the ethmoidal crest in sphenopalatine artery surgery.

In severe cases of epistaxis, in spite of several procedures described in the literature for its management, surgical treatment has been recognized by most authors as 1 of the most effective, especially when it includes ligation and/or electrocoagulation of the nasal branches of the sphenopalatine artery. The objective of this study is to determine the importance of ethmoid crest resection during sphenopalatine artery surgery, in the management of severe epistaxis.

High occurrence of rhinitis symptoms in hairdressing apprentices.

Little is known about the occurrence of respiratory symptoms among hairdressing apprentices during their training. Therefore, in this study, we examined whether hairdressing apprentices are at increased risk of rhinitis and asthma symptoms when compared with other young adults from the general population.

Chronic invasive fungal sinusitis: characterization and shift in management of a rare disease.

Chronic invasive fungal sinusitis (CIFS) is a rare subtype of mycotic diseases involving the paranasal sinuses. It is characterized by a slow onset and invasive organisms with non-granulomatous inflammation seen on histopathology. Historically, treatment has involved radical surgical resection. The purpose of this study was to describe the presentation, comorbidities, and role of more conservative treatment options.

Surgeon and hospital cost variability for septoplasty and inferior turbinate reduction.

Septoplasty and turbinate reduction (STR) is a common procedure for which cost reduction efforts may improve value. The purpose of this study was to identify sources of variation in medical facility and surgeon costs associated with STR, and whether these costs correlated with short-term complications.

Lack of correlation between patient reported location and severity of facial pain and radiographic burden of disease in chronic rhinosinusitis.

Facial pain is a cardinal symptom of chronic rhinosinusitis (CRS) with significant impacts on patient treatment selection, quality of life, and outcomes. The association between facial pain and CRS disease severity has not been systematically evaluated with validated, facial pain-specific questionnaires. Our objective was to measure pain location, severity, and interference in patients with CRS, and correlate these to the location and severity of radiographic evidence of disease.

Rhinovirus infection in murine chronic allergic rhinosinusitis model.

Patients with chronic rhinosinusitis (CRS) commonly experience aggravation of their symptoms after viral upper respiratory infection (URI). Rhinovirus (RV) is the most common URI-causing virus. However, there is a lack of a mouse model of RV infection and in vivo studies investigating the effect of RV infection on CRS.

Comparison of the distribution of intranasal steroid spray using different application techniques.

Optimizing the intranasal distribution of nasal steroid spray (NS) is important in managing patients with allergic rhinitis (AR). Using a 3-dimensional computational model of the human nose, we found that inspiratory airflow improved particle distribution by 86%. We hence designed a study to determine if the intranasal distribution of NS is improved by (1) simultaneous gentle inspiration or (2) nasal decongestion.

Correlation of T2R38 taste phenotype and in vitro biofilm formation from nonpolypoid chronic rhinosinusitis patients.

Sinonasal biofilms have been demonstrated in specimens collected from chronic rhinosinusitis (CRS) patients. Mounting evidence suggests that biofilms contribute to therapeutically recalcitrant CRS. Recently, the bitter taste receptor T2R38 has been implicated in the regulation of the sinonasal mucosal innate immune response. TAS2R38 gene polymorphisms affect receptor functionality and contribute to variations seen in sinonasal innate defense as well as taste perception reflected in gustatory sensitivity to ...

Anti-inflammatory effects of intranasal cyclosporine for allergic rhinitis in a mouse model.

Although topical corticosteroids are considered a safe and effective drug for allergic rhinitis (AR), some AR patients do not show sufficient symptomatic improvement by use of topical corticosteroids. Topical cyclosporine is a safe and effective drug for patients with allergic conjunctivitis, particularly for those with steroid-resistant allergic conjunctivitis. We investigated the anti-inflammatory effects of intranasal cyclosporine for AR using a mouse model.

Health utility values for patients with recurrent acute rhinosinusitis undergoing endoscopic sinus surgery: a nested case control study.

Health utility scores quantify an individual's valuation of particular health states and are vital components of health economic studies and cost-effectiveness research. We sought to characterize health utility values for patients with recurrent acute rhinosinusitis (RARS) both before and after endoscopic sinus surgery (ESS), as well as compare health utility to chronic rhinosinusitis without nasal polyposis (CRSsNP).

Effectiveness of atorvastatin in suppressing MUC5AC gene expression in human airway epithelial cells.

We recently reported that chronic cholesterol depletion in NCI-H292 cells by lovastatin suppresses interleukin (IL)-1β-induced MUC5AC gene expression. However, as there are numerous statins affect MUC5AC expression, we sought to determine which statin is most effective in reducing MUC5AC expression, and whether this activity of statins is related to IL-1 receptor (IL-1RI) and mitogen-activated protein kinase (MAPK) activity.

A validated case definition for chronic rhinosinusitis in administrative data: a Canadian perspective.

Pharmacoepidemiological research using administrative databases has become increasingly popular for chronic rhinosinusitis (CRS); however, without a validated case definition the cohort evaluated may be inaccurate resulting in biased and incorrect outcomes. The objective of this study was to develop and validate a generalizable administrative database case definition for CRS using International Classification of Diseases, 9th edition (ICD-9)-coded claims.

Longitudinal improvement and stability of olfactory function in the evaluation of surgical management for chronic rhinosinusitis.

Abnormal olfaction is common with chronic rhinosinusitis (CRS) and associates with various measures of sinonasal inflammation. The Brief Smell Identification Test (BSIT) has demonstrated improvements in abnormal olfactory detection following endoscopic sinus surgery (ESS), but olfaction remains understudied using this instrument. Discerning longitudinal, postoperative durability in olfaction is critical for patient counseling.

Clinician assessment of paranasal sinus pneumatization is correlated with total sinus volume.

The Assessment of Pneumatization of the Paranasal Sinuses (APPS) score is a novel and validated instrument for comprehensively evaluating the pneumatization pattern of the sinuses. Previous studies on the relationship between sinus pneumatization and clinical parameters have been hindered by cumbersome volume analysis. The purpose of this study was to determine whether the APPS score correlates with total sinus volume.

Evaluation of Malassezia and Common Fungal Pathogens in Subtypes of Chronic Rhinosinusitis.

Fungal hypersensitivity and fungal microbiome dysbiosis are possible etiologies of chronic rhinosinusitis. The sinus fungal microbiome is not well characterized; novel sinus-associated fungi, including Malassezia, have only recently been described. The goals for this study were to verify Malassezia as a dominant component of the sinus microbiome, to speciate sinus Malassezia, and to compare select fungal species in chronic rhinosinusitis (CRS) subtypes with known fungal association to chronic rhinosinusitis...

IFAR Editorial May 2016.

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