[Survey on pollen sensitization of tropic plants in Haikou]

To discover varieties of sensitization pollens and improve specific diagnosis against tropic pollinosis by the field survey of tropic plants.

(1) All of the chosen 20 tropic plants widely located, with enormous quantity and more pollens were identified the family, genus and species by specialists. And their pollens gathered in full bloom period were delivered to the chemical reagent works of union Hospital, Beijing and manufactured, according to clinical standards, into idiotoxins. (2) Five hundred patients were chosen randomly from May, 2003 to August, 2004 among those who came to our department and were suffering from allergic rhinitis, slow urticaria, allergic taraxis, allergic asthma and deviancy asthma. They were aged 5-72, altogether 285 male and 215 female, and agreed to be observed. Experiments included skin pricking and intracutaneous test.

The 20 clinical skin prick tests of tropic plants pollens idiotoxin proved that the positive reaction rate was 5 of which was over 50%, 6 of which 40%-49%, 3 of which 30%-39%, 4 of which 20%-29%, 2 of which 10%-20%, 40%-49%.

The tropic plants survey, pollen gathering, idiotoxin manufacturing, clinic intracutaneous test and sensitization discovery have not only increased varieties of tropic sensitization pollen idiotoxins but also improved specific diagnosis of pollinosis in tropic areas.