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'Indoor Aeroallergens' (193)


Sep
2017

Atopic dermatitis (AD) is an early and important step in the propagation of the allergic march, enhancing food and respiratory allergies via epicutaneous sensitisation to allergens.
To determine the prevalence and patterns of aeroallergen sensitisation, asthma and allergic rhinitis in South African (SA) children with AD.
This was a prospective, observational study in a paediatric university hospital in Cape Town, SA.

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Nov
2017

The tremendous increase in allergy in the African continent cannot simply be explained by the change in public hygiene. There are many "prehygiene" communities with sewage-contaminated water supplies, helminth infestations, bare footedness, and poor housing, and still there is a high prevalence of allergic disease. Africans can be exposed to many risk factors facilitating severe asthma and wheezing, including airborne viruses, smoke, indoor dampness, cockroaches, and poor access to health care.

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Aug
2017

Aeroallergens play an important role in developing allergic diseases. The aim of this study was to determine the outdoor and indoor sensitization using a specific regional panel of aeroallergens in allergic patients. All patients with allergic symptoms referred to Immunology, Asthma and Allergy Research Institute (IAARI) in Tehran, Iran from December 2010 to July 2013 entered this cross sectional study.

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Jan
2018

Evidence is accumulating that indoor dampness and mold are associated with the development of asthma. The underlying mechanisms remain unknown. New Zealand has high rates of both asthma and indoor mold and is ideally placed to investigate this.

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Dec
1969

Multiple sensitizations in early age have been reported to be a risk for development of asthma. This study evaluates the emergence and evolution of IgE to aeroallergens among a cohort of children with physician-diagnosed atopic dermatitis and/or showing food allergy symptoms and to examine the relation to asthma development.
Three-hundred and four children (median age 13.

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Dec
1969

The prevalence of sensitization varies geographically based on multiple environmental factors including humidity. The aim of this study was to determine the prevalence of atopy in symptomatic adults. More importantly we aimed to obtain a regional statistic of sensitization to common allergens given Saskatchewan's dry climate.

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Jan
2017

Home aeroallergen exposure is associated with increased asthma morbidity in children, yet little is known about the contribution of school aeroallergen exposures to such morbidity.
To evaluate the effect of school-specific aeroallergen exposures on asthma morbidity among students, adjusting for home exposures.
The School Inner-City Asthma Study was a prospective cohort study evaluating 284 students aged 4 to 13 years with asthma who were enrolled from 37 inner-city elementary schools in the northeastern United States between March 1, 2008, and August 31, 2013.

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Sep
2016

Fungi have been known to be important aeroallergens for hundreds of years. Most studies have focused on total fungal concentration; however, the concentration of specific allergenic fungi may be more important on an individual basis.
Ten fungal allergic patients and 2 non-fungal allergic patients were enrolled.

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Sep
2016

Sensitisation to home aeroallergens (mites, furry animals and cockroaches) is predominant in patients in our and other areas. Covariation of sensitisation (CS) to these allergens could be due to cross-reactivity or parallel sensitisation.
Skin prick tests were performed to common and second-line home aeroallergens, shrimp and tropomyosin in 253 paediatric patients seen in our Unit due to chronic respiratory symptoms.

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Oct
2016

To date, most studies of the 'allergy epidemic' have been based on self-reported data. There is still limited knowledge on time trends in allergic sensitization, especially among adults.
To study allergic sensitization, its risk factors and time trends in prevalence.

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Apr
2016

Asthma is the most commonly reported chronic condition of childhood in developed countries, with 6.5 million children affected in the USA. A disparate burden of childhood asthma is seen among socioeconomically disadvantaged youth, often concentrated in urban areas with high poverty rates.

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Apr
2016

A review on emerging frontiers of house dust mite and cockroach allergy research.

Allergol Immunopathol (Madr) 2016 Nov - Dec;44(6):580-593. Epub 2016 Mar 16.
S Patel, B R Meher
Currently, mankind is afflicted with diversified health issues, allergies being a common, yet little understood malady. Allergies, the outcome of a baffled immune system encompasses myriad allergens and causes an array of health consequences, ranging from transient to recurrent and mild to fatal. Indoor allergy is a serious hypersensitivity in genetically-predisposed people, triggered by ingestion, inhalation or mere contact of allergens, of which mite and cockroaches are one of the most-represented constituents.

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Dec
1969

In recent studies, local specific immunoglobulin E (sIgE) production against allergens in nasal mucosa and a positive response to a nasal allergen provocation test (NAPT) have been demonstrated in some patients initially diagnosed as nonallergic rhinitis (NAR) or idiopathic rhinitis (IR). The aim of this study was to evaluate the presence of local allergic rhinitis (LAR) in patients who experience rhinitis symptoms in indoor and outdoor moldy conditions and to investigate the role of the NAPT in diagnosis.
A total of 40 NAR patients with a history of persistent rhinitis and who had negative skin-prick tests (SPTs) and serum sIgE levels to common aeroallergens, as well as 20 healthy subjects were included in the study.

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Dec
1969

Alternaria alternata spores are considered a well-known biological contaminant and a very common potent aeroallergen source that is found in environmental samples. The most intense exposure to A. alternata allergens is likely to occur outdoors; however, Alternaria and other allergenic fungi can colonize in indoor environments and thereby increase the fungal aeroallergen exposure levels.

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Jan
2016

Aeroallergens, atopy and allergic rhinitis in the Middle East.

Eur Ann Allergy Clin Immunol 2016 Jan;48(1):5-21
L Goronfolah
The literature on the nature and prevalence of indoor and/or outdoor aeroallergens, atopy and symptoms of rhinitis and asthma in the Middle East region (defined here as Bahrain, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Kingdom of Saudi Arabia - KSA, Syria, United Arab Emirates and Yemen) was reviewed. Although documentation was poor in all countries other than Iran and the KSA, a wide range of "global" and "local" aeroallergens (grass, weed and tree pollens, fungal spores, insect allergens, dander, and house dust mites) has been observed across the region. The prevalence of current self-reported or parent-reported symptoms of rhinitis ranged from 9% to 38%.

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Jan
2016

Asthma affects more than 5 million patients in the United Kingdom. Nearly 500,000 of these patients have severe asthma with severe symptoms and frequent exacerbations that are inadequately controlled with available treatments. The burden of severe asthma on the NHS is enormous, accounting for 80 % of the total asthma cost (£1 billion), with frequent exacerbations and expensive medications generating much of this cost.

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Dec
2015

House dust mites (HDMs) are the most important source of indoor aeroallergens that contribute to the rising incidence of allergic diseases such as allergic asthma. The major HDM, Der f 2, induces inflammatory cytokine expression. Little is known about the signaling pathway involved.

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Oct
2015

The rising prevalence of allergy and of allergic rhino-conjunctivitis is associated with changes in modern lifestyle. The current period of rapid development and consequent urbanization and migration, coupled with changes in climate, is facilitating a growth in rates of allergy.
Alterations to indoor and outdoor environments resulting from urbanization, industrialization, and climate change have significant implications for the prevalence and management of allergic rhino-conjunctivitis.

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Dec
2015

Inhaled endotoxin induces airway inflammation and is an established risk factor for asthma. The 2005-2006 National Health and Nutrition Examination Survey included measures of endotoxin and allergens in homes as well as specific IgE to inhalant allergens.
To understand the relationships between endotoxin exposure, asthma outcomes, and sensitization status for 15 aeroallergens in a nationally representative sample.

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Jun
2015

Allergic conjunctival disease (ACD) is a type of ocular allergy, which includes seasonal allergic conjunctivitis (SAC), perennial allergic conjunctivitis (PAC), and vernal keratoconjunctivitis (VKC). Little is known about the pattern of sensitization or prevalent aeroallergens among patients with isolated ACD in Egypt We aimed to evaluate the prevalence of skin prick test positivity to common aeroallergens among Egyptian patients with isolated allergic conjunctival disease. The study included 75 patients with isolated ACD recruited from a tertiary Egyptian outpatient clinic.

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Jun
2015

Previous research has demonstrated that unipolar ionization can enhance the filter performance to collect airborne particles, aeroallergens, and airborne microorganisms, without affecting the filter pressure drop. However, there is a lack of research on the long-term system performance as well as the influence of environmental and operational parameters. In this paper, both field and laboratory tests were carried out to evaluate the long-term particle collection efficiency of a synthetic filter of class M6 with and without ionization.

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Mar
2015

House dust mite (HDM) has been suggested to be the most important aeroallergen responsible for atopic asthma in Korea. We aimed to investigate that specific IgE antibodies to HDM and other common indoor aeroallergens contribute differently to total serum IgE and show different relationships with longitudinal fractional exhaled nitric oxide (FeNO) measurements in Korean atopic asthmatic patients.
A total of 193 children aged 8 to 16 years with intermittent or mild persistent atopic asthma were recruited.

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Apr
2015

Aeroallergens continue to have a key role in the pathogenesis of asthma and allergic diseases and have recently received increased attention in medical research throughout the world. The prevalence of aeroallergens vary in different regions, depending on the type of climate. The aim of the present study was to determine prevalence of the sensitivity to aeroallergens among patients with asthma and allergic rhinitis (AR), based on skin prick test (SPT) reactivity in the province of Bushehr, Iran.

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Sep
2015

Indoor environment factors have been associated with risk of asthma exacerbations in children but little is known about their role on asthma hospital readmissions. As children in Western societies continually spend more time indoors, understanding the influence of these factors on asthma exacerbation is important. We examined the role of indoor environmental and lifestyle characteristics on child asthma readmissions.

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Mar
2015

Exposure assessment is an important component of allergic disease diagnosis and management. Analysis for allergen content in vacuumed dust has been used traditionally.
To study allergen levels of dust taken from high-efficiency furnace filters in Midwestern homes.

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Jan
2015

Fungal spores are ubiquitously present in indoor and outdoor air. A number can act as aeroallergens in Immunoglobulin E (IgE)-sensitized individuals and some thermotolerant fungi germinate in the lung where they can cause a combined allergic and infective stimulus leading to a number of clinical presentations characterized by evidence of lung damage. We discuss which biomarkers are useful in helping to guide diagnosis, prognosis and treatment of allergic fungal airway disease (AFAD).

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Sep
2014

Despite a significant rise in asthma globally as well as in Sri Lanka, data regarding allergen sensitization patterns and other risk factors for asthma are not available. Therefore, we set out to determine the allergen sensitization patterns in children with asthma in Sri Lanka.
Skin prick testing for common indoor aeroallergens (cockroach, cat, dog, house dust mite, moulds) were carried out in 156 children with bronchial asthma at Lady Ridgeway Hospital for Children.

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Sep
2014

Asthma and allergic diseases have increased globally. Earlier studies suggest a history of excess asthma morbidity and mortality in Hawai'i, with high prevalence of sensitization to outdoor aeroallergens among atopic children. This study was undertaken to test the hypotheses that specific allergens are more associated with asthma, and that sensitivity to common aeroallergens has increased in Hawai'i since 1966.

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Oct
2014

Exposure to high molecular weight sensitizers of biological origin is an important risk factor for the development of asthma and rhinitis. Most of the causal allergens have been defined based on their reactivity with IgE antibodies, and in many cases, the molecular structure and function of the allergens have been established. Significant information on allergen levels that cause sensitization and allergic symptoms for several major environmental and occupational allergens has been reported.

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Mar
2014

The prevalence of allergic asthma has been rising continually which is correlated with the increasingly closed living environment. House dust mites are the major sources of indoor aeroallergens which induce asthma in sensitized people. To monitor the seasonal variation of house dust mite (HDM)-allergens exposure level in the asthmatic children, which was evaluated to show its correlation with the level of asthma control, HDM allergic sensitization and fraction of exhaled nitric oxide, and to provide basic data for HDM environmental control.

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Jul
2014

Desktop dust has been studied as a source of food allergen, but not as a source of potential aeroallergen exposure. Thirty-six wiped samples from desktop surfaces were collected from preschools and schools. Samples were analyzed for detectable levels of common aeroallergens including Alternaria, cockroach, dog, dust mite, cat, mouse, and rat allergens by immunoassay.

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Dec
1969

Military personnel deployed to Iraq and Afghanistan, from 2004 to the present, has served in a setting of unique environmental conditions. Among these are exposures to burning trash in open air "burn pits" lit on fire with jet fuel JP-8. Depending on trash burned--water bottles, styrofoam trays, medical waste, unexploded munitions, and computers--toxins may be released such as dioxins and n-hexane and benzene.

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Aug
2014

Studies that estimate indoor aeroallergen exposure typically measure a pre-selected limited range of allergens. In this study, inhalable aeroallergen particles were quantified using the halogen immunoassay (HIA) to determine the contribution of fungal and non-fungal aeroallergens to total allergen exposure. Bioaerosols from 39 homes of fungal-allergic subjects were sampled using inhalable fraction samplers and immunostained by HIA using resident subject's immunoglobulin E (IgE) to detect allergen-laden particles.

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Aug
2014

House dust is considered an important source of aeroallergens, and the mites living there, are the main cause of allergy to it. In México, there have been few about house dust fauna, and mostly limited to México City.
To describe the house dust fauna from mattresses of allergic patients from different cities in México.

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Apr
2014

The purpose of this study was to determine whether aeroallergen sensitization phenotypes could predict maintenance of well-controlled asthma.
Asthmatic children age 2-18 years who enrolled in the CHOC Children's Breathmobile™ program from April 2002 to December 2011 were included in this retrospective analysis if they had been skin tested to a panel of indoor and outdoor aeroallergens and had returned for follow-up care within 6 months of their baseline visit. The study observation period encompassed all year one visits.

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Dec
1969

As one of the most common sources of indoor aeroallergens worldwide, cockroach is important in causing rhinitis and asthma while the mechanisms underlying remain obscure. Since T helper (Th) type 2 polarization plays an important role in the pathogenesis of allergic diseases, we investigated the effect of Bla g 7, a pan-allergen from Blattella germanica (B. germanica), on Th polarization which is controlled by monocyte-derived dendritic cells (DCs).

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Nov
2013

Forty million children are regularly exposed to environmental tobacco smoke (ETS) each year, increasing their risk for premature death and middle ear and acute respiratory infections. Early life exposure to ETS also is clearly associated with wheezing. However, there is no clear understanding of the influence of ETS on the development of allergic sensitization.

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Nov
2013

The immunological mechanism in aetiology of atopic dermatitis (AD) shows significant differences from other allergic diseases. Allergen inhalation exacerbates AD lesions and AD patients' complaints decrease in house dust mite (HDM) low level environments, which reveals the importance of inhalant allergens.
We evaluated the skin prick test (SPT) and atopy patch test (APT) positivity rates with aeroallergens and studied the effect of test results, and aimed to determine the value of allergic test reactivity on the clinical characteristics of children with AD.

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Sep
2013

The high prevalence of allergic rhinitis that occurs in elite athletes has been extensively investigated. However, data among recreational athletes practicing indoor activities remain contradictory. The aim of the present study was to determine whether taking part in gym based sporting activities constitutes a risk factor for allergic rhinitis in recreational athletes.

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Sep
2013

Aeroallergens may trigger symptoms in sensitized children with asthma. Documentation of sensitization is crucial to enable effective implementation of measures to prevent asthma exacerbations. To document the sensitization patterns of very young children (≤2 years) with asthma, we retrospectively analyzed the skin-prick test (SPT) results of the largest referral center in the country.

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Apr
2013

Respiratory allergies are the most important public health issues in the world. They are caused by aeroallergens which play great role in pathogenesis of respiratory allergic diseases.
The current study was conducted to evaluate the prevalence of positive skin test for various aeroallergens among allergic patients in Ahvaz, southwest Iran.

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May
2013

Assessment of indoor allergen is valuable in exposure research and evaluation of allergic individuals. Collection methods range from grab vacuum samples to filtration devices located in the breathing range of an individual. For practical purposes, many research studies use analysis of collected house dust to evaluate allergen reservoirs.

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Jul
2013

Over the last decades many epidemiologic studies considered the morbidity patterns for respiratory diseases and lung function of children in the context of ambient air pollution usually measured in the postnatal period. The main purpose of this study is to assess the impact of prenatal exposure to fine particulate matter (PM2.5) on the recurrent broncho-pulmonary infections in early childhood.

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Oct
2013

Allergy diagnostics have changed in the last 10-15 y, moving from the use of extracts for in vivo and in vitro diagnosis to the Component Resolved Diagnosis, based on purified or recombinant allergens. As expected, aerobiology developed similarly, and measurement of allergens in both outdoor and indoor air is now feasible. With the aim of promoting a global view of molecular allergy, we have drawn a map of exposure to molecular aeroallergens in Italy on the bases of geo-climatic regions, maps of pollen distribution, and published data on the molecular profile of sensitization in Italian patients.

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Jan
2012

The prevalence of respiratory allergic diseases has been increasing in Southern Africa both in urban and in rural environments. Various factors may contribute toward this situation, namely, exposure to aeroallergens, such as grass pollens and house dust mites. However, other irritant environmental triggers, such as exposure to tobacco smoke and certain indoor and outdoor fumes, may also play a relevant part.

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Feb
2012

Traffic-related pollutants and wheezing in children.

J Asthma 2012 Feb 3;49(1):5-7. Epub 2012 Jan 3.
David I Bernstein
Traffic related air pollutants from diesel engine exhaust are found in fine and ultrafine particulates. The Cincinnati Childrens Allergy and Air Pollution Birth Cohort Study was initiated to determine if early exposure to these pollutants increased risk for development of early atopic sensitization and allergic respiratory disease phenotypes in children.
Over 700 infants born to at least one atopic parent were recruited to participate in a birth cohort study.

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Jul
2011

The association between sensitizations and severity of allergic diseases is controversial.
This study was to investigate the association between severity of asthma and rhinitis and degree of specific allergic sensitization in allergic patients in China.
A cross-sectional survey was performed in 6304 patients with asthma and/or rhinitis from 4 regions of China.

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Dec
1969

Allergic rhinitis is common among children and quite often represents a stage of the atopic march. Although sensitization to food and airborne allergens may appear in infancy and early childhood, symptoms of the disease are usually present after age 3. The aim of this study was to determine the most frequent food and indoor and outdoor respiratory allergens involved in allergic rhinitis in children in the region of Piraeus.

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Dec
1969

To determine the impact that an educational intervention employing problem-solving strategies for the environmental control of aeroallergens has on environmental conditions in the households of children with asthma. The intervention was carried out by community health agents.
This was a prospective intervention study.

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Jul
2011

Indoor aeroallergen exposures increased asthma symptoms in Caucasians, but their determinants and relationship to asthma and allergy in Asians are unclear. This study investigated exposures to cat, cockroach, and Blomia tropicalis allergens in 115 Hong Kong families with asthmatic children. Patients underwent exhaled nitric oxide and spirometric measurements.

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