PURPOSE Nonallergenic irritants can aggravate the symptoms of rhinitis. We investigated the clinical responses of children with allergic rhinitis (AR) and nonallergic rhinitis (NAR) to nonallergenic irritants, and identified factors associated with these responses. METHODS Children with chronic rhinitis (n=208) were classified as having AR or NAR based on the presence of aeroallergen-specific...

Background: Oxidative stress may play a role in the pathophysiology of several diseases including allergic rhinitis. Objectives: To evaluate whether plasma total oxidant status (TOS) in the form of plasma reactive oxidants differs between children with allergic rhinitis and healthy controls and to investigate associations between plasma antioxidants and other allergic rhinitis–related immunolog...

The aim of this study was to assess what proportion of patients with rhinitis symptoms (unrelated to infection) in population-based studies is attributable to atopy. We assessed the relevance of atopy in rhinitis in different countries and populations and between different age groups by performing a Medline search from 1980 onward on population-based studies. In the 22 identified population-bas...

specific local immunotherapy has been recently introduced as an alternative to classic subcutaneous immunotherapy in treatment of allergic rhinitis. in this study, the effects of sublingual immunotherapy (slit) on symptoms and medication score and skin prick test evaluation of patients with allergic rhinitis were investigated. in this placebo controlled trial, twenty four patients aged 5-18 yea...

although response to intranasal steroid therapy has been reported in pa¬tients with allergic rhinitis, efficacy of some nasal steroids is noteworthy. this study was undertaken to evaluate the efficacy of a two-week course of fluticasone (flixonase) nasal spray vs. beclomethasone (beconase) nasal spray in patients with symptoms of allergic rhinitis referred to our clinic. this study reviewed six...

BACKGROUND Nationwide epidemiologic data on rhinitis in the elderly do not exist. This study aimed to estimate the prevalence of rhinitis in the population aged 65 years or above in mainland Portugal and to characterize and classify rhinitis in this age group. METHODS Cross-sectional, nationwide, population-based survey of citizens aged 65 years or above, living in mainland Portugal. Current ...

OBJECTIVE To determine the prevalence of allergic rhinitis in a random group of schoolchildren aged 13 to 14 years in Brasilia, Brazil, to evaluate tendencies over 6 years and to compare prevalence rates among different socioeconomic groups. METHODS Two cross-sectional studies were undertaken 6 years apart, using the ISAAC (phases I and III) written questionnaire. Thirty-nine schools were cho...

Allergic rhinitis is a predisposing factor for developing clinical asthma. Moreover, allergic rhinitis is often associated with bronchial hyperresponsiveness (BHR). We hypothesise that patients with asthma have more small airway involvement than those with allergic rhinitis and BHR alone. The aim of this study was to assess peripheral and proximal NO concentration in rhinitic subjects, and to c...

Previous studies of allergic rhinitis in children have not documented the environmental risk factors for infants at age one. We examined the relationship of environmental tobacco smoke (ETS) and visible mold exposures on the development of allergic rhinitis, rhinitis and upper respiratory infection (URI) in a birth cohort where at least one parent was skin prick test (SPT) positive. ETS exposur...