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Beta-receptor decrease in bronchial asthma
A Oehling1, M L Sanz, P M Gamboa
1Departemento de alergologia e inmunología Clínica, Clínica Universitaria, Facultad de Medicina, Universidad de Navarra, Pamplona, Spain.
Abstract:
Sinesterases that intervene in cAMP and oGMP equilibrium in the cytoplasm of mast cells are activated by the adrenergic system through beta-receptors. A study was made on 96 atopic patients with mono sensitization to Dermatophagoides pteronissinus, in 3 groups. Radioligands were used to quantitate the number of beta receptors. In the control group mean no/cell was 541, bronchial symptomatic patients had 327 and nasal symptomatics 348. Asymptomatic patients were similar to controls. The results were similar with pollen-sensitive patients. Beta receptor decrease is a consequence of clinical allergy in atopic patients and is secondary to the immunological events that follow antigen-antibody reactions and cell membrane changes.
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