Abstract:
Background:In severe asthma, high doses of inhaled corticosteroids (ICS) are used in order to achieve clinical and functional control. This study aimed to evaluate lung function in outpatients (children and adolescents) with severe asthma in Brazil, all of whom were treated with high doses of ICS. We evaluated all spirometry tests together and by ICS dose: 800 and > 800 µg/day. Methods:This was a 3-year longitudinal study in which we analyzed 384 spirometry tests in 65 severe asthma patients (6-18 years of age), divided into two groups by the dose of ICS (budesonide or equivalent): 800 and > 800 µg/day. Results:At baseline, the forced expiratory volume in one second (FEV1) and the FEV1/forced vital capacity (FVC) ratio were both < 80% of the predicted values in 50.8% of the patients. The median age of the patients was 10.4 years (interquartile range 7.8-13.6 years). In the sample as a whole, there were significant increases in FEV1% and in the FEV1/FVC% ratio (p = 0.01 and p < 0.001, respectively) over the course of the study. In the > 800 µg/day group, there were no statistical increases or decreases in FEV1, the FEV1/FVC ratio, or forced expiratory flow between 25 and 75% of the FVC (FEF25-75%), when calculated as percentages of the predicted values. However, the z-score for FEF25-75% showed a statistically significant reduction, in the sample as a whole and in the > 800 µg/day group. Also in the > 800 µg/day group, there was a significant reduction in the post-bronchodilator FEV1% (p = 0.004). Conclusions:The fact that the spirometric parameters (as percentages of the predicted values) remained constant in the > 800 µg/day group, whereas there was a gain in lung function in the sample as a whole, suggests an early plateau phase in the > 800 µg/day group. However, there was some loss of lung function in the > 800 µg/day group, as evidenced by a decrease in the z-score for FEF25-75%, suggesting irreversible small airway impairment, and by a reduction in the post-bronchodilator FEV1%, suggesting reduced reversibility of airway obstruction. Among children and adolescents with severe asthma, the use of ICS doses higher than those recommended for age does not appear to improve lung function.
journal_name
Clin Transl Allergyjournal_title
Clinical and translational allergyauthors
Versiani Nunes Pinheiro de Queiroz M,Gonçalves Alvim C,Cruz ÁA,de Lima Belizário Facury Lasmar LMdoi
10.1186/s13601-017-0183-6subject
Has Abstractpub_date
2017-12-15 00:00:00pages
48issn
2045-7022pii
183journal_volume
7pub_type
杂志文章abstract::On March 29, 2017, a European Summit on the Prevention and Self-Management of Chronic Respiratory Diseases (CRD) was organized by the European Forum for Research and Education in Allergy and Airway Diseases. The event took place in the European Parliament of Brussels and was hosted by MEP David Borrelli and MEP Sirpa ...
journal_title:Clinical and translational allergy
pub_type: 杂志文章,评审
doi:10.1186/s13601-017-0186-3
更新日期:2017-12-27 00:00:00
abstract:BACKGROUND:Recently we reported the validation of the "Allergy-Control-SCORE© (ACS)" which assesses symptom severity as well as medication use on three dimensions lung, nose and eyes. The aim of this study was to test the validity of the score for eyes and nose. METHODS:One-hundred-twenty-one consenting subjects (age ...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/2045-7022-2-17
更新日期:2012-09-19 00:00:00
abstract:Background:Chronic rhinosinusitis with nasal polyps (CRSwNP) is a heterogeneous inflammatory disease usually characterized by chronic eosinophilia in the sinonasal mucosa, which often requires glucocorticoid (GC) therapy. However, the therapeutic response varies markedly between individuals. The objective of this study...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-018-0211-1
更新日期:2018-07-02 00:00:00
abstract::Oral allergy syndrome (OAS) is one of the most common IgE-mediated allergic reactions. It is characterized by a number of symptoms induced by the exposure of the oral and pharyngeal mucosa to allergenic proteins belonging to class 1 or to class 2 food allergens. OAS occurring when patients sensitized to pollens are ex...
journal_title:Clinical and translational allergy
pub_type: 杂志文章,评审
doi:10.1186/s13601-020-00329-8
更新日期:2020-06-17 00:00:00
abstract::Rhinitis and rhinosinusitis are the two major clinical entities of chronic upper airway disease. Chronic rhinosinusitis (CRS) and allergic rhinitis (AR) affect respectively up to 10 and 30% of the total population, hence being associated with an important socio-economic burden. Different phenotypes of rhinitis and CRS...
journal_title:Clinical and translational allergy
pub_type: 杂志文章,评审
doi:10.1186/s13601-017-0157-8
更新日期:2017-07-12 00:00:00
abstract::[This corrects the article DOI: 10.1186/s13601-019-0303-6.]. ...
journal_title:Clinical and translational allergy
pub_type: 已发布勘误
doi:10.1186/s13601-020-00343-w
更新日期:2020-09-28 00:00:00
abstract:Background:Asthma with atopy is often characterized by type 2 inflammation but less progress has been made in defining non-type 2 asthma. We have previously identified a subgroup of young non-atopic asthmatics with perceived food hypersensitivity and poor asthma control. Objective:Our aim was to further characterize t...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-019-0250-2
更新日期:2019-02-22 00:00:00
abstract::We present three cases with anaphylaxis after injection of a depot corticosteroid. First, the steroid was suspected as the elicitor, but after evaluation the excipient macrogol was found to be the elicitor. One of the patients had reactions to several unrelated drugs. Increased awareness of anaphylaxis to excipients s...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-016-0138-3
更新日期:2017-01-10 00:00:00
abstract:BACKGROUND:With the aim of actively contributing to the ongoing 11(th) International Classification of Diseases (ICD) revision, an international collaboration led by the European Academy of Allergy and Clinical Immunology (EAACI) has decided to revise the classification of hypersensitivity/allergic diseases and to vali...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-015-0063-x
更新日期:2015-06-03 00:00:00
abstract:Background:Fungal and bacterial microbiota play an important role in development of asthma. We aim to characterize airway microbiome (mycobiome, bacteriome) and functional genes in asthmatics and controls. Methods:Sputum microbiome of controls, untreated asthma patients and inhaled corticosteroid (ICS) receiving patie...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-020-00345-8
更新日期:2020-10-22 00:00:00
abstract:BACKGROUND:For the development of forecasts for seasonal allergic rhinitis symptoms, it is essential to understand the relationship between grass pollen concentrations and the symptoms of grass pollen allergic patients. OBJECTIVE:The aim of this study was to delineate this relationship between seasonal allergic rhinit...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/2045-7022-1-18
更新日期:2011-12-21 00:00:00
abstract:BACKGROUND:The FOXP3 gene is the master regulator for T regulatory cells and is under tight DNA methylation control at the Treg specific demethylated region (TSDR) in its first intron. This said, methylation of its promoter region, the significance of which is unknown, has also been associated with various immune-relat...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-015-0079-2
更新日期:2015-10-20 00:00:00
abstract::[This corrects the article DOI: 10.1186/s13601-016-0116-9.]. ...
journal_title:Clinical and translational allergy
pub_type: 已发布勘误
doi:10.1186/s13601-016-0135-6
更新日期:2017-02-20 00:00:00
abstract:Background:Susceptibility to pepsin digestion of candidate transgene products is regarded an important parameter in the weight-of-evidence approach for allergenicity risk assessment of genetically modified crops. It has been argued that protocols used for this assessment should better reflect physiological conditions e...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-018-0216-9
更新日期:2018-08-10 00:00:00
abstract:Background:In daily practice, one-third of sesame allergic patients, confirmed by clinical history or food challenge, do not show any detectable specific IgE using current diagnostics. Currently used sesame extracts are water-based and therefore lacking hydrophobic proteins like oleosins. Oleosins, the stabilizer of li...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-019-0271-x
更新日期:2019-06-28 00:00:00
abstract:Background:Diagnostic workup of penicillin allergy comprises skin testing with penicillins, and patients are deemed allergic if skin test is positive. However, the literature suggests that skin test-positive patients may be challenge-negative, indicating that the skin test may be falsely positive. Objective:To investi...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-017-0179-2
更新日期:2017-11-17 00:00:00
abstract:Background:Stevens-Johnson syndrome/toxic epidermal necrolysis (SJS/TEN) and erythema multiforme (EM) are immunologically-mediated dermatological disorders commonly triggered by drug exposure and/or other external agents. We aimed to characterise SJS/TEN- and EM-drug-related hospitalisations in a nationwide administrat...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-017-0188-1
更新日期:2018-01-22 00:00:00
abstract:Background:Patients with chronic rhinosinusitis with nasal polyps (CRSwNP) and comorbid asthma have more severe disease and are difficult to treat. However, the molecular endotypes associated with CRSwNP with comorbid asthma (CRSwNP + AS) are not clear. This study aimed to investigate the characteristics of type 2 infl...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-020-00332-z
更新日期:2020-07-03 00:00:00
abstract:BACKGROUND:Cow's milk allergy (CMA) is a common disease in infancy. Early environmental factors are likely to contribute to CMA. It is known that epigenetic gene regulation can be altered by environmental factors. We have set up a proof of concept study, aiming to detect epigenetic associations specific with CMA. METH...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-016-0105-z
更新日期:2016-05-04 00:00:00
abstract:BACKGROUND:Indoleamine 2,3-dioxygenase (IDO) is a tryptophan catalyzing enzyme. It has been suggested that it has a role in lower airway allergic inflammations, but its role in allergic rhinitis has not been investigated. OBJECTIVE:Our aim was to evaluate the expression of IDO in the nasal mucosa of allergic rhinitis ...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/2045-7022-1-17
更新日期:2011-12-12 00:00:00
abstract:Background:Evidence for distinct asthma phenotypes and their overlap is becoming increasingly relevant to identify personalized and targeted therapeutic strategies. In this study, we aimed to describe the overlap of five commonly reported asthma phenotypes in US adults with current asthma and assess its association wit...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-018-0201-3
更新日期:2018-05-04 00:00:00
abstract:Background:Blood eosinophil count (BEC) and fractional exhaled nitric oxide (FeNO) concentration are established biomarkers in asthma, associated particularly with the risk of exacerbations. We evaluated the relationship of BEC and FeNO as complementary and independent biomarkers of severe asthma exacerbations. Method...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-019-0282-7
更新日期:2019-08-21 00:00:00
abstract::Eosinophilic disorders represent a group of pathologic conditions with highly heterogeneous pathophysiology and clinical presentation and variable prognosis, ranging from asymptomatic or mild, to severe and complex cases, with fatal outcome. Interest in this group of disorders has increased during the last two decades...
journal_title:Clinical and translational allergy
pub_type: 杂志文章,评审
doi:10.1186/s13601-019-0277-4
更新日期:2019-07-25 00:00:00
abstract:Background:Pollen is a major cause of allergic respiratory diseases. In Qatar, data on the presence and prevalence of allergenic airborne types of pollen is quite limited. Methods:The study aimed to determine and correlate the most frequently implicated airborne pollen detected by aerobiological monitoring samplers in...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-020-00339-6
更新日期:2020-08-10 00:00:00
abstract:BACKGROUND:Although efforts to improve the classification of hypersensitivity/allergic diseases have been made, they have not been considered a top-level category in the International Classification of Diseases (ICD)-10 and still are not in the ICD-11 beta phase linearization. ICD-10 is the most used classification sys...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/2045-7022-4-42
更新日期:2014-11-28 00:00:00
abstract:BACKGROUND:The European Academy of Allergy and Clinical Immunology (EAACI) is in the process of developing the EAACI Guidelines for Allergen Immunotherapy (AIT) for IgE-mediated food allergy. We seek to critically assess the effectiveness, cost-effectiveness and safety of AIT in IgE-mediated food allergy. METHODS:We w...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-016-0113-z
更新日期:2016-07-05 00:00:00
abstract:BACKGROUND:Double-blind, placebo-controlled (DBPC) trials are the gold standard for demonstrating clinical efficacy and tolerability. The placebo effect, although an important feature in placebo-controlled studies, has never been systematically investigated in allergen-specific immunotherapy (SIT) studies. This study w...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/2045-7022-3-42
更新日期:2013-12-21 00:00:00
abstract:BACKGROUND:Asthma is a frequent chronic respiratory disease in both children and adults. However, few data on asthma prevalence are available in Portugal. The Portuguese National Asthma Survey is the first nationwide study that uses standardized methods. We aimed to estimate the prevalence of current asthma in the Port...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/2045-7022-2-15
更新日期:2012-08-29 00:00:00
abstract::Crying combined with miscellaneous gastrointestinal symptoms are typical symptoms of infant with food allergy, but are also common among children with abnormal neurological development. Mutations in KAT6A gene is known to cause a syndrome characterized by developmental delay, hypotonia, cardiac defects, microcephaly, ...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-017-0155-x
更新日期:2017-06-22 00:00:00
abstract:Background:The relationship between smoking, household pollution, dual exposure and severity of asthma in adults has not been sufficiently studied. We examined and compared the effects of cigarette smoking, domestic wood burning pollution and dual exposure (tobacco and wood burning) upon asthma severity in adults. Met...
journal_title:Clinical and translational allergy
pub_type: 杂志文章
doi:10.1186/s13601-018-0235-6
更新日期:2018-12-10 00:00:00