Twenty-seven patients with hay fever had a carbachol inhalation challenge both out of season and during the pollen season. Eight patients with allergic asthma were used as a control group. Only three patients (11.1%) demonstrated a value of a provocative dose causing a 20% fall in FEV1 in the asthmatic range out of pollen season, but during pollen exposure, the number of positive responses significantly increased to 13 (48.1%). We observed differences regarding mean age, age of onset of symptoms, sex, and family history between patients with positive responses and patients who failed to react to inhalation challenge. It appears reasonable that an aspecific bronchial provocation test, performed during the pollen season, can detect with greater sensitivity patients with hay fever at risk of developing asthma in the future, and it also appears reasonable that these patients should be treated differently from subjects with "pure" allergic rhinitis. We expect the ongoing follow-up to clarify the prognostic value to be attributed to these findings.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0091-6749(87)90156-4 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Managed honey bees, Apis mellifera (Hymenoptera: Apidae), face greater risk from parasites and pathogens than mosquito control insecticide applications.
Sci Total Environ
January 2025
Salt Lake City Mosquito Abatement District, 2215 North 2200 West, Salt Lake City, UT 84116, United States.
As the primary pollinator for many crops, honey bees (Apis mellifera) are critically important to food production and the agricultural economy. Adult mosquito control is often suspected by the public and commercial beekeepers to harm honey bees, creating conflicts between industries. To investigate this matter, a two-year field study was conducted on vegetated wetlands in Salt Lake City, Utah, U.
View Article and Find Full Text PDFImpact of Seasonal Atmospheric Factors and Photoperiod on Floral Biology, Plant-Pollinator Interactions, and Plant Reproduction on L. (Passifloraceae).
Biology (Basel)
January 2025
Department of Botany & Forestry, Vidyasagar University, Midnapore 721102, West Bengal, India.
Reproductive traits and plant-pollinator interactions largely depend on seasonal weather conditions, which are species-specific. is an ornamental plant distributed worldwide. There is little information about plant species' reproductive ecology and environmental factors' impact on it.
View Article and Find Full Text PDFAerobiology matters: Why people in the community access pollen information and how they use it.
Clin Transl Allergy
January 2025
School of Biomedical Sciences, Centre Immunology and Infection Control, Centre for Environment, Queensland University of Technology, Brisbane, Queensland, Australia.
Background: Globally, many pollen monitoring networks provide the community with daily pollen information, but there are limited data on health consumer uses and benefits. This research investigated why individuals in the community access pollen information, how they use it, and the perceived benefits.
Methods: In- and post-pollen season surveys (2017-2018 and 2018-2019) enquired about symptoms, diagnoses, symptom management, access, benefits and usefulness of pollen information provided by the AusPollen Partnership.
Relationship between antihistamine residues in wastewater and airborne pollen concentrations: Insights into population-scale pollinosis response.
Sci Total Environ
January 2025
Swiss Federal Institute of Aquatic Science and Technology, Eawag, Dübendorf, Switzerland.
Pollinosis is the most prevalent allergic disorder. Assessing the impact of real-world pollen exposure on symptoms remains challenging due to extensive patient-level efforts required. This study explores the potential of wastewater-based epidemiology (WBE) to investigate the relationship between airborne pollen concentrations and antihistamine residues in wastewater as an indicator of pollinosis symptom treatment at the population-scale.
View Article and Find Full Text PDFA Silver (Birch) Bullet for Children With Tree Pollen Allergy: Single Allergen Immunotherapy With Birch Extract Protects Across the Birch Homologous Group Pollen Season.
Allergy
January 2025
Asthma, Allergy and Clinical Immunology, Respiratory Medicine, Alfred Hospital, Melbourne, Victoria, Australia.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!