On the occurrence of the contact allergen primin and other quinoid compounds in species of the family of Primulaceae
- 1 January 1978
- journal article
- research article
- Published by Springer Nature in Archives of Dermatological Research
- Vol. 261 (3) , 311-321
- https://doi.org/10.1007/bf00455301
Abstract
82 different species of the Primulaceae family have been investigated by a screening test. In 16 Primula species and 4 species of other genera the strong contact allergen primin could be detected by the Craven-test. Extracts of only 12 plants gave no color reaction. In the remaining species other quinoid components were detectable. From 4 species new quinoid subtances were isolated. Primin itself was obtained from Primula elatior and from the petals (corollas) of Primula obconica. The results indicate that the presence of primin and other quinones is determined by their origin and seasonal variations. It is supposed that some of the detected quinones may function as allergens and therefore may be responsible for the contact dermatitis described in the literature due to several Primula species and some other species of the same family. Some indications point to the suspicion that primin occurs in the plant as a glycoside which is separated by extraction treatment to give its quinole and an unknown substance. The quinole oxidizes then to the quinhydrone and finally to primin itself. 82 verschiedene Arten aus der Familie der Primulaceae wurden mittels eines Screeningtests untersucht. In 16 Primeln und vier Arten aus anderen Genera konnte das Kontaktallergen Primin durch den Craven-Test nachgewiesen werden. 12 Pflanzenextrakte ergaben keine Farbreaktion. Neben Primin ließen sich auch andere Chinone nachweisen; aus vier Arten wurden neue chinoide Verbindungen isoliert. Primin wurde aus Primula elatior und den Blütenblättern von Primula obconica in reiner Form gewonnen. Die vorliegenden Untersuchungen bestätigen, daß das Vorkommen von Primin und verwandten Chinonen stark von Standort und Jahreszeit abhängig ist. Den nachgewiesenen Chinonen wird unterstellt, daß sie als Allergene für viele in der Literatur durch verschiedene Primulaceen beschriebene Fälle von Kontaktdermatitiden verantwortlich sind.This publication has 18 references indexed in Scilit:
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