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Primula obconica, a member of the Primulaceae family, was introduced to Britain from China in 1880. P. obconica cultivars, which are reputed to contain less primin, have been developed over the past number of years in an attempt to reduce the incidence of allergic contact dermatitis. Primin
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A case of the hands and face dermatitis in a patient employed in a store with motor-car spare parts is presented. Both the patient and her doctor were convinced that skin lesions were caused by the contact with metals, oils and greases. After detecting allergy to primine (after 48 and 96 h, + +),
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As a complementary study to a previous work (14) in which we examined 43 cases of contact dermatitis to plants, we have taken a closer look at the provocative cases which made up 76% of that study - Allium (garlic) (11 cases), Primula (8), Frullania (8) and Compositae (6). The clinical methodology,
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Primin (2-methoxy-6-pentyl-1,4-benzoquinone) is a naturally-occurring strong sensitizer from Primula obconica (Primulacease). To determine the effect of side-chain length on sensitizing potency, 15 analogues with linear side chains from C1 to C15 and 4 C6-analogues with branched side chains were
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5,8-Dihydroxyflavone (primetin) has been shown to be the sensitizer in Primula mistassinica Michaux and probably the source of allergic contact dermatitis in four milkers. Its sensitizing properties as determined in guinea-pigs, are strong. As far as is known this is the first experimental
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Allergic contact dermatitis to Primula obconica has long been established. It is considered a significant allergen in Europe and has been included in standard screening there. The allergen is much less common in the United States. The frequency of allergy to P obconica in the United States is
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Primin was included in the European standard series (ESS) in 1984. In 2000, a primin-free variant of Primula obconica, the main source of contact allergy to primin, was introduced in the market. The aim of this study was to analyse the trends of primin allergy in 13 986 consecutively patch-tested
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Experimental studies on the sensitizing capacity of naturally occurring benzoquinones, isolated from plants and woods have been carried out in guinea pigs of the Pirbright white strain. Seven compounds were available: primin, three dalbergiones, mansonia quinone (mansonone A),
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BACKGROUND
Primin is the main contact allergen found in the ornamental plant Primula obconica Hance.
OBJECTIVE
To analyse the temporal trend of sensitivity to primin in north-eastern Italy and to evaluate the associations with occupations in our geographical area.
METHODS
From 1996 to 2012, 24 052
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We report the cases of 2 patients diagnosed as having primula dermatitis. Both patients were housewives who had been exposed to primula plants. Although only one related her clinical manifestations with looking after plants, the symptoms of both remitted when contact with primula was avoided. The
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For more than 100 years, it has been widely held that of all the Primula species to cause allergic contact dermatitis, P. obconica is the most likely culprit, particularly in Northern Europe. The main sensitizer is primin, but other sensitizers are reported. Other species are rarely implicated, but
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