نتایج جستجو برای: pollen allergies
تعداد نتایج: 26295 فیلتر نتایج به سال:
BACKGROUND Alteration of the gut microbial population (dysbiosis) may increase the risk for allergies and other conditions. This study sought to clarify the relationship of dysbiosis with allergies in adults. METHODS Publicly available American Gut Project questionnaire and fecal 16S rRNA sequence data were analyzed. Fecal microbiota richness (number of observed species) and composition (UniF...
BACKGROUND Oilseed rape and maize crops represent a large part of agriculture fields in European countries. OBJECTIVE To establish the actual prevalence of sensitization to oilseed rape and maize pollen, and to determine if this is correlated to the amount of exposure as well as to the patient's history of atopy or asymptomatic atopy. METHODS The study was conducted by 69 allergists belongi...
BACKGROUND Plant food allergies associated with lipid transfer protein (LTP) have been widely described in the Mediterranean Basin. OBJECTIVE The aim of this work was to describe the clinical profile and pollen sensitization of plant food- allergic patients sensitized to LTP in a non-Mediterranean area. METHODS Patients with clear IgE-mediated symptoms associated with plant foods and a posi...
Abstract Pollen allergies are responsible for a considerable global public health burden, and understanding exposure is critical to addressing the impacts. Atmospheric pollen counts routinely used as predictor of risk; however, immune responses triggered by specific proteins known allergens, which occur both within on surface grain. The ratio between atmospheric allergen concentrations (‘pollen...
Toll-like receptors (TLRs) are important in barrier homeostasis, but their role in airborne allergies is not fully understood. The aim was to evaluate baseline and allergen-induced expression of TLR proteins in nasal epithelium during allergic rhinitis. Nineteen otherwise healthy non-smoking volunteers both allergic to birch pollen and non-allergic controls were enrolled. We took nasal biopsies...
Hourly grass pollen concentrations were recorded over a 10-year study period at an aerobiological station of Badajoz (SW Spain). The record was carried out by means of a Burkard spore trap. Meteorological data were used to find correlation with the hourly patterns in the months of principal concentration. The observed variations were found to be due to independent contributions of patterns corr...
Pollen grains induce allergies in susceptible individuals by release of allergens upon contact with mucosal membranes of the upper respiratory tract. We recently demonstrated that pollen not only function as allergen carriers but also as rich sources of bioactive lipids that attract cells involved in allergic inflammation such as neutrophils and eosinophils. Here we demonstrate that soluble fac...
Cypress pollen represents the primary cause of respiratory allergies in Mediterranean areas. Patients allergic to Cupressus sempervirens pollen (Cups) (CPA) can be discriminated on the basis of the immunoglobulin E (IgE) binding to a basic 14 kDa protein (BP14) or to high-molecular-weight (HMW) glycoproteins only. Specific IgE repertoires of two differentially exposed CPA cohorts, French and It...
BACKGROUND There are few studies which analyse the characteristics of allergic respiratory disease according to profiles of sensitisation to different allergens. This study describes the clinical features and therapeutic approaches, according to the sensitisation profile to relevant aeroallergens, in a sample of adult patients with a first-time diagnosis of respiratory allergy (rhinitis and/or ...
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