The percentage of circulating and lung-infiltrated eosinophils
and basophils decreased significantly in the sensitised and
propolis extract treated groups. In addition, the percentages
were still insignificantly higher than those of the naı¨ve and
dexamethasone-treated groups. These findings support the
hypothesis that propolis extracts may have an anti-inflammatory
role, and hence, ameliorative effects in allergic asthma
by free radical scavenging. Indeed, there is a need for new or
alternative approaches to the control of this disease.