Determination of fruit origin by using 26S rDNA fingerprinting of yeast communities by PCR-DGGE: preliminary application to Physalis fruits from Egypt.

The determination of geographical origin is a demand of the traceability system of import-export food products. One hypothesis for tracing the source of a product is by global analysis of the microbial communities of the food and statistical linkage of this analysis to the geographical origin of the food. For this purpose, a molecular technique employing 26S rDNA profiles generated by PCR-DGGE was used to detect the variation in yeast community structures of three species of Physalis fruit (Physalis ixocarpa Brat, Physalis pubescens L, Physalis pruinosa L) from four Egyptian regions (Qalyoubia, Minufiya, Beheira and Alexandria Governments).

[Photodermatosis induced by hydroxychloroquine: 4 cases].

Background: Hydroxychloroquine is an antimalarial drug often used in dermatology for its photo-protective effects. Four cases of photodermatosis induced by hydroxychloroquine are reported.

Case Reports: Four patients, aged from 21 to 68 years, developed a photolocalized eruption from 6 days to 10 weeks after starting hydroxychloroquine.