Scientific program

The 2024 edition of the Tetranational Congress of the Societies of Phytotherapy of Austria, Germany, Switzerland and The Netherlands aims to provide an inspiring and interactive forum to share recent insights in the use of herbal products, both from a clinical and preclinical perspective. Among others, this congress will address specifically the increasing use and significance of herb-based products and phytotherapy in infection and immunity in human and animal health care. The Congress will be held in the historical Academy Building of Utrecht University and digital attendance via live-stream is available.


Confirmed keynote speakers:

  • Prof. Rudolf Bauer, Institute of Pharmaceutical Sciences Department of Pharmacognosy Univ. Graz (AT)
  • Prof. Sigrun Chrubasik, Dept. of Phytotherapy, Institute of Forensic Medicine Univ. Freiburg Breisgau (DE)
  • Prof. Johan Garssen, Division of Pharmacology and Immunopharmacology, Univ. Utrecht (NL)
  • Prof. Michael Heinrich, Research Group 'Pharmacognosy and Phytotherapy' UCL School of Pharmacy, Univ. London (UK)
  • Prof. Andreas Hensel, Institute of Pharmaceutical Biology and Phytochemistry, Univ. Münster (DE)
  • Dr. Mercedes Ogal, Medical Special in paediatrics and adolescent health care, Brunnen (CH)
  • Dr. Theresa Schlittenlacher, Research Institute for Organic Agriculture (FiBL), Frick (CH)
  • Dr. Nadin Schultze. Pharmazeutische Biologie, University of Greifswald (DE)
  • Prof. Coen Smits, Wageningen University & Research, Wageningen (NL)
  • Drs. Sam de Snoek, Sana novum, Rhenen (NL)
  • Prof. Ana Margarida Sousa, Centre of Biological Engineering, University of Minho (PT)
  • Dr. Mei Wang, Naturalis Biodiversity Center, Leiden (NL)

Timetable Preliminary Scientific Program

Wed 29-5
18:30 - 20:00
Registration and Meet and Greet
Thu 30-5
9:00 - 9:30
Opening ceremony: Welcome address of President of the Dutch Society for Phytotherapy and the Congress Organizing Committee – G. Hoogsteen, MD & D. Meijer, MD (NL)
Herbal medicines for global health challenges
9:30 - 10:00
KN I Overcoming global healthcare challenges - herbal medicines in infection and immunity – Prof. M. Heinrich (UK)
10:00 - 10:30
KN II Nasturtium and Horseradish: from Monastery to Evidence-Based Medicine – Dr. S. Chrubasik (DE)
10:30 - 11:00
Coffee break
11:00 - 11:30
KN III The role of herbal medicine within microbiome-gut-brain-axis and mental health – Prof. R. Bauer (AT)
11:30 - 12:00
KN IV Impact of early life nutrition on immune health and consequences for later life – Prof. J. Garssen (NL)
12:00 - 12:15
SC-1 Study of the prebiotic potential of Althaea officinalis L. root extract using the high throughput ex vivo technology SIFR® - Dr. P. van den Abbeel (BE)
12:15 - 12:30
SC-2 New contributions to deepen the presumption of quality-based safety in the consumption of garden Nasturtium flowers – the role of volatilome – Dr. M.C. Costa and J. Camara (PT)
12:30 - 13:30
Lunch break
Bacterial biofilms as an emerging therapeutic challenge and the role of phytogenics
13:30 - 14:00
KN V Bacterial biofilm as a therapeutic challenge: Application of plant products for treatment of bacterial biofilm infections – Prof. Ana M. Sousa (PT)
14:00 - 14:30
KN VI Natural products as biofilm inhibitors of multidrug-resistant E.coli – Dr. Nadin Schultze (DE)
14:30 - 14:45
SC-3 South African plant-derived extracts and fractions reduce biofilms of bacteria isolated from milk of dairy cows with clinical mastitis – Dr. L. McGaw (SA)
14:45 - 15:00
SC-4 Evaluation of phytotherapeutic effects on wound healing: Insights from ex vivo scratch assay analyses – Dr. N.P. Hoff (DE)
15:00 - 15:30
Tea break and poster viewing
The Role of Phytotherapy in Reducing Antibiotic Overuse: Round Table discussion
15:30 - 17:00
Introduction: Echinacea Reduces Antibiotics by Preventing Respiratory
Infections: A Meta-Analysis (ERA-PRIMA) – Dr. R. Schoop (CH)
With Prof. R. Bauer (AT), Prof. M. Heinrich (UK), Prof. R. Stange (DE), Dr. Mercedes Ogal (CH), Dr. R. Schoop (CH), Prof. Johanna Fink-Gremmels (NL)
17:00 - 17:30
Poster discussions & Drinks
Congress dinner
Fri 31-5
Phytotherapy in children and phytogenics in the treatment of gastrointestinal disorders
8:30 - 9:00
KN VII Upper respiratory tract infections: prophylaxis and treatment concepts in childhood - Dr. Mercedes Ogal (CH)
9:00 - 9:30
KN VIII Optimized dosing regimens of phytotherapeutics for use in children - Prof. A. Hensel, C. Hensen (DE)
9:30 - 10:00
KN IX Assessment of herbal medicinal products vs. food supplements: Legal
background and current developments – Dr. Barbara Steinhoff (DE)
10:00 - 10:15
SC-5 The reality of food supplements containing botanicals: analytical investigations indicate exciting claims and reveal potential food fraud -  A. Brouns, M. Lechtenberg, Prof. A. Hensel (DE)
10:15 - 10:30
SC-6 ESCOP and a qualitative study about medical students’ atitudes towards
phytopharmaceuticals - Dr. L. Krenn (AT)
10:30 - 11:00
Coffee break and poster viewing
Phytogenics for intestinal and metabolic disorders
11:00 - 11:15
SC-7 Gender differences in the treatment of functional dyspepsia? Data from the geriatric populaton - Dr. J. Worbs, E. Complido, O. Kelber, K. Nieber
11:15 - 11:30
SC-8 Silexan is effective in patients with a major depressive episode of mild to moderate severity. - Dr. S. Klement (DE)
11:30 - 11:45
SC-9 Anti-inflammatory action of a mucosa protective agent, marshmallow root extract, in endothelial cells, fibroblasts and macrophages in vitro - Dr. O. Kelber (DE)
11:45 - 12:00
SC-10 Rice bran extract modulates gut dysbiosis and TLR4/NF-κB signaling in
experimental colitis - Prof. M.T. Khayyal (Egypt)
12:00 - 12:15
SC-11 Lupeol a novel compound for metabolic diseases: Cellular and molecular
approach - Prof. H. Malekinejad (IR)
12:15 - 12:30
SC-12 Reporting practices in PROSPERO for medicinal plant extracts and herbal
medicines: An evaluation of registered studies in terms of their description of the study materials - Dr. B. Jalil, M. Manael, Prof. M. Heinrich (UK)
12:30 - 13:30
Lunch break
Medicinal plants: One Health - One World
13:30 - 13:50
KN X Medicinal plants for animal health care: Translating tradition into modern
veterinary medicine - Dr. T. Schlitenlacher (CH)
13:50 - 14:10
KN XI Phytogenics in prophylactic nutrition of young animals - Prof. C. Smits (NL)
14:10 - 14:30
KN XII Eubioitcs: solutions root in nature - Drs S. de Snoek (NL)
14:30 - 14:50
KN XIII Revisiting Traditional Herbal Medicine by Metabolomics Approach - Dr. Mei Wang (NL)
14:50 - 15:05
SC-13 Systemic effects out of the non-specific - suggestions from working with
Tibetan formulas - Dr. H. Schwabl (CH)
15:05 - 15:20
SC-14 The history of European herbal medicine in Japan and its influence on Kampo - Prof. K. Kuchta (DE)
15:20 - 15:40
SC-15 Why do we still need information from folk medicine? - Prof. Tinde van Andel (NL)
15:40 - 16:15
Young scientist awards; Closing ceremony and invitation to the next Tetranational Congress - Prof. R. Verpoorte, Dr. Mei Wang
Sat 1-6
09:00 - 15:00

Visit to the A.Vogel gardens in Elburg (incl. lunch and bus).

Meeting Point: Hotel Karel V, Address: Geertebolwerk 1, Utrecht

08:45 Meet in the lobby of Grand Hotel Karl V. There will be a short walk to the bus departure at Touringcar parking place Moreelsepark.

Tickets can be purchased here