Publikationen und Vorträge

2024

Publikationen (peer reviewed)



  • Vahekeni, N.; Stehlin, J.; Urmann, C.; Wolfram, E.; Geissmann, Y.; Ruedin, Y.; Engler, O.; Lardos, A. Historical Texts as a Potential Resource for Plant-Derived Natural Products against SARS-CoV-2 – the Example of the Receptarium of Burkhard III von Hallwyl from 16th Century Switzerland. bioRxiv June 13, 2024, p 2024.06.13.598798. https://doi.org/10.1101/2024.06.13.598798


  • Tomou, E.-M.; Goula, K.; Skaltsa, H.; Urmann, C. Comparative Phytochemical Analysis of Cultivated and Wild Sideritis Raeseri Boiss. & Heldr. Subsp. Raeseri Infusions. Natural Product Research 2024. https://doi.org/10.1080/14786419.2024.2309323.

 

  • Jeshua Friedrichs, J.-S.; Schmermund, L.; Urmann, C.; Sieber, V. Synthesis of N-Substituted Pyrrole-2,5-Dicarboxylic Acids from Pyrroles. Helvetica Chimica Acta n/a (n/a), e202400036. https://doi.org/10.1002/hlca.202400036.



2023

Publikationen (peer reviewed)



  • Rothammer, M.; Strobel, P.; Zollfrank, C.; Urmann, C. Biocompatible Coatings Based on Photo-Crosslinkable Cellulose Derivatives. International Journal of Biological Macromolecules 2023, 250, 126063. https://doi.org/10.1016/j.ijbiomac.2023.126063.

 

  • Tomou, E.-M.; Bieler, L.; Spöttl, T.; Couillard-Despres, S.; Skaltsa, H.; Urmann, C. Metabolic Fingerprinting of Different Sideritis Taxa Infusions and Their Neurogenic Activity. Planta Med 2023, 89 (11), 1087–1096. https://doi.org/10.1055/a-2072-2351.

 

  • Urmann, C.; Bieler, L.; Hackl, M.; Chia-Leeson, O.; Couillard-Despres, S.; Riepl, H. Semi-Synthesis of Different Pyranoflavonoid Backbones and the Neurogenic Potential. Molecules 2023, 28 (10), 4023. https://doi.org/10.3390/molecules28104023.



Vorträge


  • Urmann C., Bieler L., Able T., Huber V., Kirchinger M., Aigner L., Couillard-Despres S. und Riepl H. Natural Products of Hops for Neuroregeneration, Deutscher Fachausschuss Arznei, Gewürz, & Aromapflanzen, Freising September (2023)



Weitere zitierfähige Kongressbeiträge (eigene und von betreuten Personen)



  • Urmann, C.; Bieler, L.; Hackl, M.; Chia-Leeson, O.; Couillard-Despres, S.; Riepl, H. One-Pot Semi-Synthesis and Neurogenic Potential of Pyranoflavonoids with Different Structural Scaffolds. In Planta Medica; Georg Thieme Verlag KG, 2023; Vol. 89, p P-145. https://doi.org/10.1055/s-0043-1774022.

 

  • Vahekeni, N.; Urmann, C.; Stehlin, J.; Hofer, N.; Gmach, Y.; Wolfram, E.; Lardos, A. Historical Herbal Texts from Switzerland: A Potential Source for Plant- Derived Natural Products against SARS-CoV-2. In Planta Medica; Georg Thieme Verlag KG, 2023; Vol. 89, p P-411. https://doi.org/10.1055/s-0043-1774265

2022

Publikationen (peer reviewed)



  • Baas, J.; Bieringer, S.; Frias, C.; Frias, J.; Soehnchen, C.; Urmann, C.; Ritter, S.; Riepl, H.; Prokop, A. Dihydroxyquingdainone Induces Apoptosis in Leukaemia and Lymphoma Cells via the Mitochondrial Pathway in a Bcl-2- and Caspase-3-Dependent Manner and Overcomes Resistance to Cytostatic Drugs In Vitro. Molecules 2022, 27 (15), 5038. https://doi.org/10.3390/molecules27155038


Vorträge


  • Tomou E., Bieler L., Couillard-Despres S., Skaltsa E. and Urmann C. Neuroregenerative potential of infusions of different Sideritis taxa & metabolic fingerprinting, 70th International Congress and Annual Meeting of the Society-for-Medicinal-Plant-and-Natural-Product-Research, Thessaloniki (2022)




2021

Publikationen (peer reviewed)



  • Urmann C., Bieler L. Priglinger E, Couillard-Després S., Aigner L., Riepl H. Neurogenerative Potential of Prenyl– and Pyranocholcones: A Structure-Activity Study, Journal of Natural Products 2021, 84, (10), 2675-2682. DOI:10.1021/acs.jnatprod.1c00505


Vorträge


  • Urmann C. Jahrestreffen der ProcessNet-Fachgruppe Phytoextrakte 2021 DECHEMA; digital; Cyclodextrin-unterstützte Extraktion neurorelevanter Chalkone


  • Urmann C. The Story of Xanthohumol C - a promising neuro-regenerative chalcone from hops; 69th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research, Bonn online




2020

Publikationen (peer reviewed)



  • Urmann, C.; Riepl, H., Semi-Synthetic Approach Leading to 8-Prenylnaringenin and 6-Prenylnaringenin: Optimization of the Microwave-Assisted Demethylation of Xanthohumol Using Design of Experiments. Molecules 2020, 25, (17), 4007. DOI:10.3390/molecules25174007


  • Ritter, S.; Urmann, C.; Herzog, R.; Glaser, J.; Bieringer, S.; Geisberger, T.; Eisenreich, W.; Riepl, H., Where is Bacosine in commercially available Bacopa monnieri? Planta medica 2020, 86, (08), 565-570. DOI: 10.1055/a-1137-4289


  • Buckett, L., Schinko, S., Urmann, C., Riepl, H., & Rychlik, M. (2020). Stable Isotope Dilution Analysis of the Major Prenylated Flavonoids Found in Beer, Hop Tea, and Hops. Frontiers in nutrition, 7, 619921. DOI: 10.3389/fnut.2020.619921

 


2019

Publikationen (peer reviewed)



  • Kirchinger, M.; Bieler, L.; Tevini, J.; Vogl, M.; Haschke-Becher, E.; Felder, T. K.; Couillard-Després, S.; Riepl, H.; Urmann, C., Development and characterization of the neuroregenerative xanthohumol c/Hydroxypropyl-β-cyclodextrin complex suitable for parenteral administration. Planta medica 2019, 85, (16), 1233-1241. DOI: 10.1055/a-1013-1276


  • Bieler, L.; Vogl, M.; Kirchinger, M.; Urmann, C.; Riepl, H.; Bandtlow, C.; Klimaschewski, L.; Aigner, L.; Couillard-Despres, S., The prenylflavonoid ENDF1 overrules central nervous system growth inhibitors and facilitates regeneration of DRG neurons. Frontiers in cellular neuroscience 2019, 13, 332.


 

Vorträge


  • Urmann C. Shimadzu MS-Tage; IT TOF gestützte Naturstoff-Analytik; Hamburg



Weitere zitierfähige Kongressbeiträge (eigene und von betreuten Personen)


  • Chia-Leeson, O.; Riepl, H.; Urmann, C., Biotransformation of the promising neuro-regenerative hop chalcone xanthohumol c. Planta Medica 2019, 85, (18), P-277.

 

  • Bieringer, S.; Urmann, C.; Saurav, K.; Hrouzek, P.; Riepl, H., Isolation of Lyngbyatoxin and other Teleocidin species from, Streptomyces Blastmyceticum” culture. Planta Medica 2019, 85, (18), P-459.

 

  • Ritter, S.; Urmann, C.; Bieler, L.; Couillard-Després, S.; Riepl, H., Study of neurodifferentiation potential of different extracts of Bacopa monnieri. Planta Medica 2019, 85, (18), P-384.



2018

Publikationen (peer reviewed)



  • Venturelli S., Niessner H., Sinnberg T., Berger A., Burkard M., Urmann C., Donaubauer K., Böcker A., Leischner C., Riepl H., Frank J., Lauer U., Garbe C., Busch C. 6- and 8-Prenylnaringenin, Novel Natural Histone Deacetylase Inhibitors Found in Hops, Exert Antitumor Activity on Melanoma Cells. C. Cell Physiol Biochem. 2018;51(2):543-556. doi: 10.1159/000495275.

 



2017

Publikationen (peer reviewed)



  • Lüscher S., Urmann C., Butterweck V.: Effect of Hops Derived Prenylated Phenols on TNF-α Induced Barrier Dysfunction in Intestinal Epithelial Cells. Journal of Natural Products 2017; (80)4: 925-931; DOI: 10.1021/acs.jnatprod.6b00869 

 

 

Vorträge


  • Urmann C., Chia-Leeson O.; Märkl S., Stark T. Kirchinger M.: Inhibition of Histone Deacetylases Using Flavonoids from Hops; 65th International Congress and Annual Meeting of the Society-for-Medicinal-Plant-and-Natural-Product-Research (GA2015): Basel, Switzerland



Weitere zitierfähige Kongressbeiträge (eigene und von betreuten Personen)


  • Burger T., Urmann C., Riepl H.: New Approach to the Synthesis of 6-Geranylnaringenin via Ruthenium-Catalyzed Cross-Metathesis; 65th International Congress and Annual Meeting of the Society-for-Medicinal-Plant-and-Natural-Product-Research (GA2015): Basel, Switzerland, 3.-7. September

 

  • Kirchinger M., Bieler L., Couillard-Despres S., Riepl H., Urmann C.: Characterization of a Neurodifferentiation Inducing Flavonoid/Cyclodextrin Inclusion Complex; 65th International Congress and Annual Meeting of the Society-for-Medicinal-Plant-and-Natural-Product-Research (GA2015): Basel, Switzerland, 3.-7. September


 

2016

Publikationen (peer reviewed)



  • Lüscher S., Urmann C., Butterweck V.Effect of Hops Derived Prenylated Phenols on TNF-α Induced Barrier Dysfunction in Intestinal Epithelial Cells. Journal of Natural Products 2017; (80)4: 925-931; DOI: 10.1021/acs.jnatprod.6b00869 

 

 

Vorträge


  • Urmann C. Discovery and Development of the neuroative compound ENDF1; Shimadzu MS-Tage Berlin


  • Urmann C. Prenylflavonoides—Lead Compounds for Neuro Regeneration, Botanical Center Meeting, University of Illinois, Chicago U.S.A



Weitere zitierfähige Kongressbeiträge (eigene und von betreuten Personen)


  • Kirchinger M., Urmann C., Bieler L., Couillard-Despres S., Riepl H.: B-ring modification in prenylflavonoids of hops and the effect on induction of neuronal differentiation 9th Joint Meeting of AFERP, ASP, GA, JSP, PSE & SIF AFERP, ASP, GA, JSP, PSE & SIF (2016) Copenhagen, Denmark, 24.–27. July




2015

Publikationen (peer reviewed)



  • Urmann C., Oberbauer E., Couillard-Després S., Aigner L., Riepl H.: Neuro-differentiating Potential of 8-Prenylnaringenin and Related Compounds in Neural Precursor Cells and Correlation with Estrogen-like Activity. Planta Medica 2015; 81(4):305-311. doi: 10.1055/s-0034-1396243


 

 

Vorträge


  • Urmann C., Riepl H.: A new method to enrich differentiation-inducing pyranoflavonoids ISHS 2015 IV International Humulus Symposium, Yakima U.S.A.


  • Urmann C., Kirchinger M., Bieler S. Couillard-Després S., Riepl H.: Structural modification of ENDF1 and the effect on inducing differentiation in neural precursor cells, 63th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research, Budapest, Hungary




Weitere zitierfähige Kongressbeiträge (eigene und von betreuten Personen)


  • Urmann C., Oberbauer E, Aigner L, Riepl H: Prenylflavonoids from Hops Induce Neural Differentiation Independent from Estrogen-like Activity; 62th International Congress and Annual Meeting of the Society-for-Medicinal-Plant-and-Natural-Product-Research (GA2014): 1. – 4. September, Guimaeres Portugal





vor 2015

Publikationen (peer reviewed)



  • Oberbauer, E.*, Urmann, C.*, Steffenhagen, C., Bieler, L., Brunner, D., Furtner, T., Humpel, C., Baeumer, B., Bandtlow, C., Couillard-Despres, S., Rivera, FJ., Riepl, H., Aigner, L.: Chroman-like cyclic prenylflavonoids promote neuronal differentiation and neurite outgrowth and are neuroprotective; Journal of Nutritional Biochemistry; 2013, 24(11):1953-62; DOI:10.1016/j.jnutbio.2013.06.005.
     * Authors contribute equally


  • Firlbeck, D., Faulstich, M., Urmann, C., Tafesh, A., Azaizeh, H., Riepl, H.: Central Composite Design for Optimal Technology of Concentrating Vanillic Acid Using Foam Fractionation; Separation and Purification Technology; 2013, DOI:10.1016/j.seppur.2013.08.033


  • Riepl H. and Urmann C.: Improved Synthesis of Indirubin Derivatives by Sequential Build-up of the Indoxyl Unit: First Preparation of Fluorescent Indirubins. Helvetica Chimica Acta, 95(8): 1461-1477; DOI: 10.1002/hlca.201200042.



 

Vorträge


  • Urmann C., Oberbauer E., Aigner L., Riepl H.: New Differentiation Effect of Hop Prenylflavonoids: Formation of Neurons from Stem Cells; The XVII International Congress "PHYTOPHARM 2013", Vienna Austria


 


Weitere zitierfähige Kongressbeiträge


  • Urmann C., Oberbauer E, Aigner L, Riepl H: New Separation Method of Prenylflavonoids; 61th International Congress and Annual Meeting of the Society-for-Medicinal-Plant-and-Natural-Product-Research (GA2013): 1. – 5. September, Münster Germany; Planta Medica 79 PJ49 DOI: 10.1055/s-0033- 1352253


  • Urmann C., Oberbauer E, Aigner L, Riepl H: Structure-Activity Study of Neurogenesis-inducing Pyranoflavonoids; München Germany; Frontiers in Medical Chemistry: 17. – 20. März 2013.


  • Urmann C., Oberbauer E., Aigner L. and Riepl H.: A Prenylchalcone Found in Hops is a High Potent Inducer of Differentiation in Neuronal Stem Cells; 22nd International Symposium on Medicinal Chemistry (EFMC-ISMC 2012) 2.  6. September 2012, Berlin Germany.


  • Urmann C., Oberbauer E., Aigner L. and Riepl H.: Prenylflavonoids Present in Humulus Lupulus L. Promote Differentiation in Neuronal Cell Lines. 12th Annual Meeting of the Austrian Neuroscience Association 19.  21. September 2011, Alpbach Austria.