Euglena Co., Ltd.

Naoki Harada

Kengo Suzuki

Ayaka Nakashima

Osamu Iwata

Eriko Yoshida

Yuta Asayama

Yoshihisa Nakano

Misa Ohgushi

Provided are a prophylactic or therapeutic agent for a peptic ulcer, a food additive for prevention and treatment of a peptic ulcer, an iNOS expression inhibitor, and a COX-2 expression inhibitor, all of which have little side effects. The prophylactic or therapeutic agent contains a-derived material as an active ingredient. The-derived material may be, paramylon, or an acid-treated paramylon. The prophylactic or therapeutic agent is useful for the prevention or treatment of a peptic ulcer induced by psychological stress. The peptic ulcer may be a gastric ulcer. The food additive contains a-derived material as an active ingredient.

Prophylactic or therapeutic agent for peptic ulcer, food additive for prophylactic or therapeutic use, iNOS expression inhibitor and COX-2 expression inhibitor

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Sakai, Japan

Naoki Harada