Utsunomiya CampusA collaborative research group led by Professor Katayama has discovered a hormone that regulates blood sugar levels and is involved in the reproductive mechanism of Sakura shrimp.

On Wednesday, April 16, 2025, Hidekazu Katayama, Professor of the Utsunomiya Campus Liberal Arts Center, Teikyo University, conducted joint research with Kenji Toyoda, Assistant Professor, Graduate School, Hiroshima University, Senior Senior Researcher, Marine Open Innovation Organization, and Tsuyoshi Ohira, Professor, Kanagawa University. We discovered the blood sugar regulator of cherry shrimp.
This joint research group focused on the "eye pattern hormone" that is said to work during the growth and spawning of shrimp, and found a hormone that regulates blood sugar levels among them. In addition, it was revealed that shrimp members (decapod crustaceans = shrimp, crabs, etc.), including sakura shrimp, have more eye pattern hormones than expected. In the future, it is expected that research on other oculogens will deepen our understanding of the reproductive mechanism of cherry shrimp, develop a technology for stably collecting eggs, and secure a sustainable amount of resources.

The results of this research were published in the online version of the international academic journal Fisheries Science on Wednesday, April 16, 2025.

Read the press release here
The published paper (in English) can be found here
For more information about Professor Katayama, click here

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