- European Association of Veterinary Anatomists (EAVA):
President (since 2021)
Member of the International Committee on Veterinary Embryological Nomenclature - World Association of Veterinary Anatomists (WAVA)
- European Placenta Group (EPG):
Elected member of the Planning Committee
Elected representative of the EPG in the International Federation of Placental Associations (IFPA) - German Veterinary Medical Society (Deutsche Veterinärmedizinische Gesellschaft, DVG)
- Association of Friends of the University of Veterinary Medicine Hannover (Verein der Freunde der Tierärztlichen Hochschule, GdF)
- Upper Hessian Society for Nature and Healing (Oberhessische Gesellschaft für Natur und Heilkunde)
- Association of Friends and Sponsors of Veterinary Medicine at Justus Liebig University (Verein der Freunde und Förderer der Veterinärmedizin an der Justus-Liebig-Universität)
April 1993:
Royal Veterinary and Agricultural University, Copenhagen, Denmark; with Prof. V. Dantzer: Microvascularization of the mink placenta
Aug.-Okt. 1993:
Loma Linda University, Loma Linda, California, USA; with Prof. L.D. Longo: Adaptation of the placental blood vessels of the sheep under high mountain conditions
April 1994:
University of Messina, Italy; with Prof. G. Germaná and Dr. F. Abbate: Changes in microvascularization during the evolution and involution of the bursa fabricii of the pigeon
April 1995:
University of Messina, Italy; continuation of the above project
April 1995:
Royal Veterinary and Agricultural University, Copenhagen, Denmark; with Prof. V. Dantzer: Development of the vascular system and cytoskeleton of the mink placenta
September 1998:
INRA, Jouy-en-Josas, Paris, France; with Dr. Michel Guillomot: Immunofluorescence analyses of cytoskeleton and integrin receptors in sheep and goats
Juli-Okt. 1999:
Texas A&M University, College Station, Texas, USA; with Prof. F.W. Bazer: Integrins and extracellular matrix during ovine implantation; in vitro influence of interferon tau on ovine endometrial cells
Februar 2009:
Universität Sao Paulo, Brazil; with Prof. Dr. Paula Papa: Integrin expression in placentas of cloned fetuses (DAAD PROBAL program)
2003:
Meeting of the “European Placenta Group” (EPG) in Mainz, together with Prof. Dr. Dr. h.c. R. Leiser
2003:
Workshop on cell culture of the “Young Generation” of the “European Association of Veterinary Anatomists” (EAVA)
2005:
Workshop “Quality of Oocytes and Embryos” at the conference “Physiology and Pathology of Reproduction” on 10.02.2005 in Zurich (together with Prof. Dr. Dr. h.c. H.-R. Tinneberg).
2006:
Workshop “Placental vascularization and blood flow” as part of the Reproductive Biomechanics Track at the 5th World Congress of Biomechanics (WCB 2006) on 31.07.2006 in Munich (together with Martin van Gemert, Netherlands)
2008:
Workshop “Different species show different placental solutions for fetal development and different clinical problems” at the IFPA Meeting 2008 in Seggau, Austria (Sept 2008)
2009:
Workshop “Placenta in Agricultural Animals” at the IFPA Meeting 2009 in Adelaide, 6.10. to 9.10.2009 (together with Prof. Dr. Vibeke Dantzer, Copenhagen, Denmark)
Current publications
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