Publicaciones científicas

Number of beta-receptors in rhinitic pollinic patients

Gamboa PM, Sanz ML, de la Cuesta CG, García BE, Castillo JG, Oehling A.
Departamento de Alergología e Inmunología Clínica, Clínica Universitaria, Facultad de Medicina, Universidad de Navarra, Pamplona, Spain

Revista: Journal Investigational Allergology and Clinical Immunology

Fecha: 01-abr-1991

Alergología e Inmunología Clínica

The study was carried out on venous blood from 67 patients with seasonal rhinoconjunctivitis caused by sensitization to grass pollen and 30 control individuals.

Total IgE determination, antigen-specific histamine release test against two concentrations of Phleum pratense, and quantification of beta 2-adrenergic receptor numbers in lymphocyte membrane of peripheral blood were done on all patients. Those pollinic patients who were asymptomatic at the time of the study had 500.07 +/- 237.27 receptors/cell; no significant differences were established with the control group, with 541.53 +/- 123.63 receptors/cell. However, both the control group and asymptomatic patients had receptor numbers which were significantly higher than those of symptomatic pollinic patients, with 376.81 +/- 158.65 receptors/cell (p < 0.01 and p < 0.05, respectively).

The average decrease in number of receptors in symptomatic pollinic patients was 30.42% in relation to controls and 24.65% in relation to asymptomatic patients. Within the subgroup of pollinic patients, studied both in and out of season, the number of beta 2-adrenergic receptors had an average decrease of 13.22% during pollination, with 363.7 receptors/cell. Once the pollination season was over, this figure increased to 419.1 receptors/cell, establishing significant differences with p < 0.025.

The number of beta 2-adrenergic receptors did not correlate with total seric IgE figures or with antigen-specific histamine release. These data indicate that the decrease of these receptors does not constitute the causal factor of atopic diseases; it seems more likely to be a consequence of the same.

CITA DEL ARTÍCULO  J Investig Allergol Clin Immunol. 1991 Apr;1(2):113-21

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