arrow
Back
K

Koji Ogawa

Hokkaido University

40H-index
416Paper Count
6.5KCitation Count
Published Papers 114
Publication Date
Employment Status of Patients With Liver Disease: A Nationwide Questionnaire Survey in Japan
err2025-10-04
err0
errOAAI
errYoshio Tokumoto; Yoichi Hiasa; Yoshihito Uchida; Takashi Oono; Atsushi Yukimoto; Takao Watanabe; Ryo Sasaki; Sachiko Tatsuki; Hironori Tanaka; Takako Inoue; Mika Horino; Akira Hirose; Tadashi Ikegami; Jun Inoue; Hiroshi Isoda; Hirokazu Takahashi; Yoshihisa Arao; Isao Hidaka; Hiroki Tojima; Satoru Kakizaki; Tetsuro Shimakami; Masayuki Tatemichi; Tatehiro Kagawa; Koji Ogawa; Masatsugu Ohara; Ritsuzo Kozuka; Masaru Enomoto; Mizuki Endo; Yuichiro Eguchi; Kenji Nagata; Masaaki Korenaga
errShare
errSave
Long non-coding RNA PWRN4 associated with post-SVR hepatocellular carcinoma: a genome-wide association study
err2025-09-26
err0
errOAAI
errGoki Suda; Masaya Sugiyama; Hayato Hikita; Akira Nishio; Tomohide Tatsumi; Tetsuo Takehara; Miyako Murakawa; Mina Nakagawa; Yasuhiro Asahina; Masashi Mizokami; Tatsuhiko Kakisaka; Yuzuru Sakamoto; Akinobu Taketomi; Koji Miyanishi; Yoshiyuki Ueno; Hiroaki Haga; Shinya Maekawa; Nobuyuki Enomoto; Masayuki Kurosaki; Motoyuki Kohjima; Makoto Nakamuta; Yasuhito Tanaka; Yoshiya Yamamoto; Masaru Baba; Hisatoshi Hanamatsu; Jun-Ichi Furukawa; Masatsugu Ohara; Takashi Kitagataya; Naoki Kawagishi; Masato Nakai; Takuya Sho; Koji Ogawa; Naoya Sakamoto
errShare
errSave
Three-year overall survival in unresectable hepatocellular carcinoma treated with atezolizumab plus bevacizumab
err2025-08-28
err0
PREAI
errMasatsugu Ohara; Goki Suda; Risako Kohya; Yutaka Yasui; Kaoru Tsuchiya; Masayuki Kurosaki; Joji Tani; Shinya Maekawa; Nobuyuki Enomoto; Makoto Chuma; Manabu Morimoto; Shun Kaneko; Mina Nakagawa; Yasuhiro Asahina; Atsumasa Komori; Yuki Kugiyama; Masaru Baba; Akihisa Nakamura; Jun Ito; Ren Yamada; Shunichi Hosoda; Yoshiya Yamamoto; Sonoe Yoshida; Takuya Sho; Takashi Sasaki; Tomoka Yoda; Akimitsu Meno; Naohiro Yasuura; Qingjie Fu; Zijian Yang; Osamu Maehara; Shunsuke Ohnishi; Yoshimasa Tokuchi; Takashi Kitagataya; Naoki Kawagishi; Masato Nakai; Koji Ogawa; Naoya Sakamoto
errShare
errSave
Potential indications for liver transplant in Child-Pugh A and Model for End-stage Liver Disease exception for hepatocellular carcinoma in Japan
err2025-03-01
err0
PREAI
errGoto, Ryoichi; Shimamura, Tsuyoshi; Nakajima, Tomoaki; Ogawa, Koji; Tanaka, Kazunari; Shimizu, Takao; Minami, Ryosuke; Matsui, Takeshi; Akutsu, Noriyuki; Sasaki, Shigeru; Kakisaka, Tatsuhiko; Kawamura, Norio; Watanabe, Masaaki; Taketomi, Akinobu
errShare
errSave
Elevated A2F bisect N-glycans of serum IgA reflect progression of liver fibrosis in patients with MASLD
err2025-01-24
err0
errOAAI
errHanamatsu, Hisatoshi; Suda, Goki; Ohara, Masatsugu; Ogawa, Koji; Tamaki, Nobuharu; Hikita, Hayato; Haga, Hiroaki; Maekawa, Shinya; Sugiyama, Masaya; Kakisaka, Tatsuhiko; Nakai, Masato; Sho, Takuya; Miura, Nobuaki; Kurosaki, Masayuki; Asahina, Yasuhiro; Taketomi, Akinobu; Ueno, Yoshiyuki; Takehara, Tetsuo; Nishikaze, Takashi; Furukawa, Jun-ichi; Sakamoto, Naoya
errShare
errSave
Association of proteinuria with improved prognosis in unresectable hepatocellular carcinoma treated with atezolizumab and bevacizumab, and the predictive role of serum vascular endothelial growth factor D levels: A multicenter retrospective study
err2024-11-25
err1
errOAAI
errYang, Zijian; Suda, Goki; Sho, Takuya; Maehara, Osamu; Ohara, Masatsugu; Yoda, Tomoka; Fu, Qingjie; Sasaki, Takashi; Kohya, Risako; Yoshida, Sonoe; Hosoda, Shunichi; Kitagataya, Takashi; Kawagishi, Naoki; Nakai, Masato; Natsuizaka, Mitsuteru; Ogawa, Koji; Ohnishi, Shunsuke; Yamamoto, Yoshiya; Baba, Masaru; Yamada, Ren; Kobayashi, Tomoe; Chen, Minhu; Sakamoto, Naoya
errShare
errSave
Positivity of high-sensitivity HBsAg test, not previous HBV infection, indicates poor prognosis in patients with non-HBV-related HCC
err2024-09-04
err2
PREAI
errYasuura, Naohiro; Suda, Goki; Ohara, Masatsugu; Meno, Akimitsu; Sho, Takuya; Kohya, Risako; Sasaki, Takashi; Yoda, Tomoka; Yoshida, Sonoe; Fu, Qingjie; Yang, Zijian; Hosoda, Shunichi; Maehara, Osamu; Ohnishi, Shunsuke; Saitou, Tomoya; Sugiyama, Masaya; Fukuhara, Takasuke; Baba, Masaru; Kitagataya, Takashi; Kawagishi, Naoki; Nakai, Masato; Natsuizaka, Mitsuteru; Ogawa, Koji; Taketomi, Akinobu; Sakamoto, Naoya
errShare
errSave
Efficacy and Safety of Durvalumab/Tremelimumab in Unresectable Hepatocellular Carcinoma as Immune Checkpoint Inhibitor Rechallenge Following Atezolizumab/Bevacizumab Treatment
err2024-09-02
err3
PREAI
errSho, Takuya; Suda, Goki; Ohara, Masatsugu; Kohya, Risako; Sasaki, Takashi; Yoshida, Sonoe; Hosoda, Shunichi; Ogawa, Koji; Kitagataya, Takashi; Maehara, Osamu; Ohnishi, Shunsuke; Kawagishi, Naoki; Natsuizaka, Mitsuteru; Nakai, Masato; Baba, Masaru; Yamamoto, Yoshiya; Tsukuda, Yoko; Meguro, Takashi; Yamada, Ren; Kobayashi, Tomoe; Takagi, Tomofumi; Sakamoto, Naoya
errShare
errSave
Coexistence of muscle atrophy and high subcutaneous adipose tissue radiodensity predicts poor prognosis in hepatocellular carcinoma
err2023-10-06
err2
errOAAI
errOhara, Masatsugu; Suda, Goki; Kohya, Risako; Sasaki, Takashi; Yoda, Tomoka; Yoshida, Sonoe; Fu, Qingjie; Yang, Zijian; Hosoda, Shunichi; Maehara, Osamu; Ohnishi, Shunsuke; Tokuchi, Yoshimasa; Kitagataya, Takashi; Kawagishi, Naoki; Nakai, Masato; Sho, Takuya; Natsuizaka, Mitsuteru; Ogawa, Koji; Sakamoto, Naoya
errShare
errSave
Recent prevalence and characteristics of patients with hepatitis delta virus in Hokkaido, Japan
err2023-07-03
err4
PREAI
errSasaki, Takashi; Suda, Goki; Ohara, Masatsugu; Hosoda, Shunichi; Kawagishi, Naoki; Kohya, Risako; Yoda, Tomoka; Maehara, Osamu; Ohnishi, Shunsuke; Yoshida, Sonoe; Fu, Qingjie; Yang, Zijian; Tokuchi, Yoshimasa; Kitagataya, Takashi; Suzuki, Kazuharu; Nakai, Masato; Sho, Takuya; Natsuizaka, Mitsuteru; Komukai, Sho; Ogawa, Koji; Sakamoto, Naoya
errShare
errSave
Neutrophil gelatinase-associated lipocalin predicts the efficacy of tolvaptan for ascites in patients with liver cirrhosis
err2023-04-27
err1
PREAI
errNakai, Masato; Morikawa, Kenichi; Sasaki, Takashi; Kohya, Risako; Yoshida, Sonoe; Hosoda, Shunichi; Kubo, Akinori; Tokuchi, Yoshimasa; Kitagataya, Takashi; Yamada, Ren; Ohara, Masatsugu; Sho, Takuya; Suda, Goki; Ogawa, Koji; Sakamoto, Naoya
errShare
errSave
Hepatitis C virus eradication by direct-acting antivirals causes a simultaneous increase in the prevalence of fatty liver and hyper low-density lipoprotein cholesterolemia without an increase in body weight
err2023-04-04
err8
PREAI
errTokuchi, Yoshimasa; Suda, Goki; Kawagishi, Naoki; Ohara, Masatsugu; Kohya, Risako; Sasaki, Takashi; Yoda, Tomoka; Maehara, Osamu; Ohnishi, Shunsuke; Kubo, Akinori; Yoshida, Sonoe; Fu, Qingjie; Yang, Zijian; Hosoda, Shunichi; Kitagataya, Takashi; Suzuki, Kazuharu; Nakai, Masato; Sho, Takuya; Natsuizaka, Mitsuteru; Ogawa, Koji; Sakamoto, Naoya
errShare
errSave
Prophylactic tenofovir alafenamide for hepatitis B virus reactivation and reactivation-related hepatitis
err2023-01-10
err8
PREAI
errSuda, Goki; Baba, Masaru; Yamamoto, Yoshiya; Sho, Takuya; Ogawa, Koji; Kimura, Megumi; Hosoda, Shunichi; Yoshida, Sonoe; Kubo, Akinori; Fu, Qingjie; Yang, Zijian; Tokuchi, Yoshimasa; Kitagataya, Takashi; Maehara, Osamu; Ohnishi, Shunsuke; Yamada, Ren; Ohara, Masatsugu; Kawagishi, Naoki; Natsuizaka, Mitsuteru; Nakai, Masato; Morikawa, Kenichi; Furuya, Ken; Suzuki, Kazuharu; Izumi, Takaaki; Meguro, Takashi; Terashita, Katsumi; Ito, Jun; Kobayashi, Tomoe; Tsunematsu, Izumi; Sakamoto, Naoya
errShare
errSave
Serum Angiopoietin-2 Predicts the Occurrence and Recurrence of Hepatocellular Carcinoma after Direct-Acting Antiviral Therapy for Hepatitis C
err2023-01-07
err3
errOAAI
errKawagishi, Naoki; Suda, Goki; Yamamoto, Yoshiya; Baba, Masaru; Furuya, Ken; Maehara, Osamu; Ohnishi, Shunsuke; Yoshida, Sonoe; Fu, Qingjie; Yang, Zijian; Hosoda, Shunichi; Tokuchi, Yoshimasa; Kitagataya, Takashi; Ohara, Masatsugu; Suzuki, Kazuharu; Nakai, Masato; Sho, Takuya; Natsuizaka, Mitsuteru; Ogawa, Koji; Sakamoto, Naoya
errShare
errSave
Low baseline CXCL9 predicts early progressive disease in unresectable HCC with atezolizumab plus bevacizumab treatment
err2022-10-31
err14
errOAAI
errHosoda, Shunichi; Suda, Goki; Sho, Takuya; Ogawa, Koji; Kimura, Megumi; Yang, Zijian; Yoshida, Sonoe; Kubo, Akinori; Tokuchi, Yoshimasa; Kitagataya, Takashi; Maehara, Osamu; Ohnishi, Shunsuke; Nakamura, Akihisa; Yamada, Ren; Ohara, Masatsugu; Kawagishi, Naoki; Natsuizaka, Mitsuteru; Nakai, Masato; Morikawa, Kenichi; Furuya, Ken; Baba, Masaru; Yamamoto, Yoshiya; Suzuki, Kazuharu; Izumi, Takaaki; Meguro, Takashi; Terashita, Katsumi; Ito, Jun; Miyagishima, Takuto; Sakamoto, Naoya
errShare
errSave
Calibrating Hepatitis E Virus Serological Assays Using Asymptomatic Specimens Obtained in Japan
err2022-10-26
err3
errOAAI
errTerahara, Kazutaka; Li, Tian-Cheng; Matsubayashi, Keiji; Sakata, Hidekatsu; Kato, Takanobu; Naganuma, Atsushi; Ogawa, Koji; Honda, Koichi; Itakura, Jun; Akutsu, Noriyuki; Tobita, Hiroshi; Korenaga, Masaaki; Kanto, Tatsuya; Sugiyama, Ryuichi; Suzuki, Ryosuke; Hamaguchi, Isao; Isogawa, Masanori; Takahashi, Yoshimasa
errShare
errSave
Serum IL-1β predicts de novo hepatitis B virus reactivation during direct-acting antiviral therapy for hepatitis C, not during anti-cancer/immunosuppressive therapy
err2022-10-07
err4
errOAAI
errKawagishi, Naoki; Suda, Goki; Sakamori, Ryotaro; Matsui, Takeshi; Onozawa, Masahiro; Yang, Zijian; Yoshida, Sonoe; Ohara, Masatsugu; Kimura, Megumi; Kubo, Akinori; Maehara, Osamu; Fu, Qingjie; Hosoda, Shunichi; Tokuchi, Yoshimasa; Suzuki, Kazuharu; Nakai, Masato; Sho, Takuya; Morikawa, Kenichi; Natsuizaka, Mitsuteru; Ogawa, Koji; Sakai, Hajime; Ohnishi, Shunsuke; Baba, Masaru; Takehara, Tetsuo; Sakamoto, Naoya
errShare
errSave
Autoantibody Landscape Revealed by Wet Protein Array: Sum of Autoantibody Levels Reflects Disease Status
err2022-05-04
err7
errOAAI
errMatsuda, Kazuki M.; Yoshizaki, Ayumi; Yamaguchi, Kei; Fukuda, Eriko; Okumura, Taishi; Ogawa, Koji; Ono, Chihiro; Norimatsu, Yuta; Kotani, Hirohito; Hisamoto, Teruyoshi; Kawanabe, Ruriko; Kuzumi, Ai; Fukasawa, Takemichi; Ebata, Satoshi; Miyagawa, Takuya; Yoshizaki-Ogawa, Asako; Goshima, Naoki; Sato, Shinichi
errShare
errSave
Overestimated renal function in patients with liver cirrhosis predicts poor prognosis
err2022-04-19
err5
PREAI
errYoshida, Sonoe; Suda, Goki; Ohara, Masatsugu; Kimura, Megumi; Yang, Zijian; Maehara, Osamu; Fu, Qingjie; Hosoda, Shunichi; Akinori, Kubo; Tokuchi, Yoshimasa; Yamada, Ren; Kitagataya, Takashi; Suzuki, Kazuharu; Kawagishi, Naoki; Nakai, Masato; Sho, Takuya; Natsuizaka, Mitsuteru; Morikawa, Kenichi; Ogawa, Koji; Ohnishi, Shunsuke; Sakamoto, Naoya
errShare
errSave
Effects of nucleos(t)ide analogs on hepatitis B surface antigen reduction with interferon-lambda 3 induction in chronic hepatitis B patients
err2022-04-12
err7
PREAI
errUmemura, Machiko; Ogawa, Koji; Morikawa, Kenichi; Kubo, Akinori; Tokuchi, Yoshimasa; Yamada, Ren; Kitagataya, Takashi; Shigesawa, Taku; Shimazaki, Tomoe; Kimura, Megumi; Suzuki, Kazuharu; Nakamura, Akihisa; Ohara, Masatsugu; Kawagishi, Naoki; Izumi, Takaaki; Nakai, Masato; Sho, Takuya; Suda, Goki; Natsuizaka, Mitsuteru; Ono, Kota; Murata, Kazumoto; Sugiyama, Masaya; Mizokami, Masashi; Sakamoto, Naoya
errShare
errSave