1989
DOI: 10.1016/s0190-9622(89)70167-5
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Pathogenesis and classification of solar urticaria: A new concept

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Cited by 108 publications
(50 citation statements)
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“…[18] demonstrated that the diversity of the action spec trum originates mainly from a difference in photoallergens, not from different pathogenetic mechanisms, presenting a case with negative passive transfer test results in which an allergic mechanism is also suspected. In 1989, Leenutaphong et al [19] proposed a new classification of solar urti caria depending on the results of the in vitro serum tests and passive and reverse passive transfer tests. He reported that in passive and reverse passive transfer tests a lag period between the injection of scrum and irradiation is essential.…”
Section: Discussionmentioning
confidence: 99%
“…[18] demonstrated that the diversity of the action spec trum originates mainly from a difference in photoallergens, not from different pathogenetic mechanisms, presenting a case with negative passive transfer test results in which an allergic mechanism is also suspected. In 1989, Leenutaphong et al [19] proposed a new classification of solar urti caria depending on the results of the in vitro serum tests and passive and reverse passive transfer tests. He reported that in passive and reverse passive transfer tests a lag period between the injection of scrum and irradiation is essential.…”
Section: Discussionmentioning
confidence: 99%
“…No teste de transmissão passiva reversa realizava-se primeiro a irradiação da pele saudável com UV, seguindo-se a administração intradérmica de soro de um doente com US. 68 Este estudo permite classificar a US em dois subtipos: no tipo I, o doente apresenta hipersensibilidade mediada por IgE a fotoalergé-nios específicos, que ocorrem apenas nos doentes com US, sendo por isso o teste de transferência reversa negativo; no tipo II, o doente apresenta IgE específica contra cromóforos normais da pele, sendo o teste de transferência sempre positivo e o teste reverso variável. 68 O espetro de indução das lesões de US varia de acordo com a região geográfica e o grupo étnico estudado, bem como a radiação administrada, podendo surgir entre a radiação UVB e a radiação infravermelha.…”
Section: Urticária Solar (Us)unclassified
“…This is then recognized by the specific IgE to this allergen on the surface of mast cells, causing degranulation and the release of histamines and other mediators. 18 Differential diagnosis. This includes PMLE, EPP, and drug-or chemical-induced photosensitivity.…”
Section: Investigationsmentioning
confidence: 99%