Abstract
Objective: To compare the presence of Mycoplasma spp. in pharyngeal swabs of patients with asthma, allergic rhinitis and controls, also to compare the reactivity to allergens in the three groups. Material and Methods: Throat swabs of 120 patients with asthma, 211 allergic rhinitis patients and 171 healthy persons were cultured in E media. Positive cultures were identified by PCR. Susceptibility of patients positive for isolation of Mycoplasma spp. to indoor, forest and undergrowth allergens were determined. Results: Mycoplasma spp. was isolated in 26.6% of samples from asthmatic patients, 36% in patients with allergic rhinitis and 2.9% in the group of healthy persons. Positive patients for Mycoplasma with asthma and allergic rhinitis showed susceptibility tomite, grass and thunder mainly. Conclusion: There is a higher incidence of Mycoplasma spp. in asthmatic and allergic rhinitis patients than healthy persons. Only patients with asthma or allergic rhinitis showed reactivity to environmental allergens.
Highlights
Skin Fifty four male asthmatic patients and sixty six female asthmatic patients were tested in order to detect Mycoplasma spp
Seventy males and one hundred and one females without signs and symptom of asthma or allergic rhinitis were considered as controls
There was not statistical difference (X2 p > 0.05) in the percentage of isolation of mycoplasmas in females and males in asthmatic patients, patients with allergic rhinitis or controls. (Figures 1-3 Resolution of figures was increased to 300 pixels.) There was statistical difference in the percentage of isolation of mycoplasmas between patients with allergic rhinitis and controls (Kruskal Wallis test p < 0.05)
Summary
One hundred and twenty wheezing asthmatic patients who came to the Allergy Service of the Puebla University Hospital were included in the study. A throat swab was taken from each patient when wheezing was observed in order to isolate mycoplasmas. Two hundred and eleven patients with allergic rhinitis who came to the Allergy Service of the Puebla University Hospital were included in the study. All patients with allergic rhinitis did not have asthma. A throat swab was taken during the acute phase of the allergic rhinitis. All patients and controls signed an informed consent form and the protocol was approved by the Ethics Committee of the Puebla University Hospital. One hundred and seventy one healthy relatives of the patients were considered as controls, a throat swab was taken in order to isolate mycoplasmas
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