About the Authors

Philipp R. Esser

philipp.esser@uniklinik-freiburg.de (PRE); stefan.martin@uniklinik-freiburg.de (SFM)

Affiliation Allergy Research Group, Medical Center, University Freiburg, Freiburg, Germany

Ute Wölfle

Affiliation Department of Dermatology, Competence Center Skintegral, Medical Center, University Freiburg, Freiburg, Germany

Christoph Dürr

Affiliation Department of Haematology and Oncology, Medical Center, University Freiburg, Freiburg, Germany

Friederike D. von Loewenich

Affiliation Institute of Medical Microbiology and Hygiene, Medical Center, University Freiburg, Freiburg, Germany

Christoph M. Schempp

Affiliation Department of Dermatology, Competence Center Skintegral, Medical Center, University Freiburg, Freiburg, Germany

Marina A. Freudenberg

Affiliation Max-Planck-Institute for Immunobiology and Epigenetics, Freiburg, Germany

Thilo Jakob

Affiliation Allergy Research Group, Medical Center, University Freiburg, Freiburg, Germany

Stefan F. Martin

philipp.esser@uniklinik-freiburg.de (PRE); stefan.martin@uniklinik-freiburg.de (SFM)

Affiliation Allergy Research Group, Medical Center, University Freiburg, Freiburg, Germany

Competing Interests

The Competence Center skintegral holds a patent on the production of luteolin rich extracts from Reseda luteola and their use. (Dr. Schempp, Dr. Wähling, Dr. Lange (2008) Method for the production of flavonoid-containing compositions and use thereof. PCT WO 2004/075816 A2. European patent EP2004/001598, 2004-09-10.) Otherwise no conflict of interest exists. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: PRE UW MAF TJ SFM. Performed the experiments: PRE CD. Analyzed the data: PRE CD SFM. Contributed reagents/materials/analysis tools: FDL CMS MAF. Wrote the paper: PRE SFM.