Obituary

The German Society for Neurogastroenterology and Motility has lost one of its most loyal friends: Mohamed Taky El-Din Khayyal died on 3 September 2025 in Cairo at the age of 87. Prof. Khayyal was Professor Emeritus of Pharmacology at Cairo University. Mohamed enriched our annual meetings for many years. Due to his severe post-polio disability, every trip was a challenge for him. We therefore appreciate his close connection to our society all the more.

Mohamed's contributions on the effect of phytopharmaceuticals on gastrointestinal functions were always enlightening and opened the door to the world of phytopharmacy for many of us, helping to overcome our reservations. He was particularly interested in the anti-inflammatory mechanisms of action and the clinical use of phytopharmaceuticals. Mohamed moved in international circles from a very early age. After graduating with honours in pharmacy from Alexandria University in 1958, he spent four years at the School of Pharmacy at the University of London, where he received his PhD in pharmacology in 1964. In 1976, he came to Prof. Dr Fritz Kemper at the University of Münster as a Humboldt Fellow. This probably established his lifelong close relationship with Germany. Mohamed has received countless national and international awards and honorary memberships. In addition to his outstanding scientific reputation and seriousness, he was a gifted communicator. In 1976, he came to Prof. Dr. Fritz Kemper at the University of Münster as a Humboldt Fellow. This probably established his lifelong close relationship with Germany. Mohamed has received countless national and international awards and honorary memberships. In addition to his outstanding scientific reputation and seriousness, he was a gifted entertainer. With him as your table neighbour, it was never boring.

As a cooperation partner, he was an absolutely reliable partner and motivator. He was highly regarded as an expert and ‘veteran’ in his field. He was a great mentor to countless students and colleagues.

Mohamed will be remembered as an exemplary scientist and a likeable, always friendly person. Our special sympathy goes out to his family.