Kazuya Okushin, Tatsuya Kanto, Masaaki Korenaga, Kazuhiko Ikeuchi, Toshiyuki Kishida, Akira Kado, Mitsuhiro Fujishiro, Takeya Tsutsumi, Tomoyuki Takura, Hiroshi Yotsuyanagi. Real-world trends in acute viral hepatitis in Japan: A nationwide questionnaire-based survey. Hepatology research : the official journal of the Japan Society of Hepatology. 2024
Michiko Koga, Makoto Saito, Megumi Kubota, Tomoe Senkoji, Eisuke Adachi, Kazuhiko Ikeuchi, Tadashi Kikuchi, Amato Otani, Kazuaki Takahashi, Takeya Tsutsumi, et al. Attenuation of hepatitis A antibody after immunization with hepatitis A vaccine (Aimmugen) in people living with HIV. Hepatology research : the official journal of the Japan Society of Hepatology. 2024
Akira Kado, Takeya Tsutsumi, Hiroshi Yotsuyanagi, Kazuhiko Ikeuchi, Kazuya Okushin, Kyoji Moriya, Kazuhiko Koike, Mitsuhiro Fujishiro. Differential peripheral memory T cell subsets sensitively indicate the severity of nonalcoholic fatty liver disease. Hepatology research : the official journal of the Japan Society of Hepatology. 2023
Kazuhiko Ikeuchi, Makoto Saito, Eisuke Adachi, Michiko Koga, Kazuya Okushin, Takeya Tsutsumi, Hiroshi Yotsuyanagi. Injection drug use and sexually transmitted infections among men who have sex with men: a retrospective cohort study at an HIV/AIDS referral hospital in Tokyo, 2013-2022. Epidemiology and infection. 2023. 1-27
Akira Kado, Takeya Tsutsumi, Hiroshi Yotsuyanagi, Kazuhiko Ikeuchi, Kazuya Okushin, Kyoji Moriya, Kazuhiko Koike, Mitsuhiro Fujishiro. Noninvasive approach to indicate risk factors of nonalcoholic steatohepatitis overlapping autoimmune hepatitis based on peripheral lymphocyte pattern. Journal of gastroenterology. 2023