Professor, Shinsuke Fujiwara, School of Biological and Environmental Sciences gave a presentation on Identification of unique arginine decarboxylase involved in low pH dependent agmatine production in solid-state cultivated Aspergillus oryzae at the 6 th International Conference on Polyamines: Biochemical, Physiological and Clinical Perspectives, which was held from 4th September 2022 to 9th of September 2022 in Italy, Roma. International Conference on Polyamines is held every two years in various countries to discuss about the biological significance of polyamines. More than 80 from 20 gathered to give presentations and hold discussions. This was the first face-to-face meeting in three years, and it was impressive that many researchers were happy to see each other again. In addition, the progress of research in each country has been tremendous even in the COVID-19 pandemic crisis, and it was the first time in a long time that I could feel the passion of researchers. This time, I was able to recognize again how polyamines are involved in maintaining human health. In 2024, Kwansei Gakuin University's Fujiwara will host an international conference in Kobe.