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Parietaria Pollinosis: Clinical and Epidemiological Aspects

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The aim of our study was the evaluation of clinical and epidemiological aspects of P pollen allergy, which is a very frequent cause of respiratory allergy in the Mediterranean area, in a homogeneous group of 442 monosensitive subjects (235 females and 207 males, mean age about 30 years) living in Naples. All patients underwent the following diagnostic procedures: anamnestic evaluation with an internal questionnaire, physical examination, SPT with commercially available allergenic extracts (DHS-Bayropharm Milan Italy); sNPT, NsBPT, and serum specific IgE determinations were also carried out in three groups of 50 different subjects. The results of our study show a highly relevant intensity of SPT positivity (++++ and +++ in about 95% of patients). The age of onset of clinical symptoms ranged between 20–25 years, and the majority of P monosensitized patients were born in the spring months, with an early exposure to P allergens. Rhinoconjunctivitis and bronchial asthma, alone or in association, represent the most common clinical manifestation of this allergy. The season in which patients experience clinical symptoms is prevalently spring (75, 12%). However, many people show a multiseasonal pattern (18, 55%). The frequency of SPT positivity to P allergens is increasing in the last 15 years, probably due to increased urban air pollution. In conclusion, the results of this study demonstrate the high frequency and severity of this pollinosis and seem to confirm some epidemiological aspects connected with other allergenic pollens (birth during the seasonal period of pollination and association with a high urban air pollution).

Document Type: Research Article


Publication date: 1996-01-01

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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