Updated on 2026/08/12

写真a

 
KOZUKA RITSUZO
 
Organization
Graduate School of Medicine Department of Clinical Medical Science Lecturer
School of Medicine Department of Medical Science
Title
Lecturer
Affiliation
Institute of Medcine

Position

  • Graduate School of Medicine Department of Clinical Medical Science 

    Lecturer  2022.04 - Now

  • School of Medicine Department of Medical Science 

    Lecturer  2022.04 - Now

Degree

  • 博士(医学) ( Osaka City University )

Professional Memberships

  • 日本内科学会

      Domestic

  • 日本消化器病学会

      Domestic

  • 日本肝臓学会

      Domestic

  • 日本消化器内視鏡学会

      Domestic

Awards

  • Roche Infectious Disease Award 2024 Excellence in Practice部門 優秀賞

    小塚立蔵

    2025.05   ロシュダイアグノスティックス株式会社  

Job Career (off-campus)

  • 厚生労働省健康局がん疾病対策課   肝炎対策推進室   室長補佐

    2019.04 - 2020.03

  • 厚生労働省健康局がん疾病対策課   B型肝炎訴訟対策室   室長補佐

    2018.04 - 2019.03

Papers

  • Continuity of long-term follow-up in patients with chronic hepatitis C after sustained virologic response following direct-acting antiviral therapy: a nationwide real-world multicenter cohort study in Japan. Reviewed

    Ohara M, Kozuka R, Uchida Y, Iino C, Sasaki R, Tojima H, Kawata K, Kakizaki S, Tokumoto Y, Endo M, Asai A, Inoue J, Nagata K, Takahashi H, Shimakami T, Ogawa K, Enomoto M, Ikegami T, Ide T, Sakamoto N, Korenaga M

    Journal of Gastroenterology   2026.04

  • Long-Term Mortality Following Hepatitis C Cure in a Real-World Multinational Cohort Reviewed

    Ji F, Tran S, Toyoda H, Enomoto M, Ogawa E, Suzuki T, Huang CF, Wong YJ, Chuma M, Uojima H, Atsukawa M, Hsu YC, Jun DW, Nozaki A, Tseng CH, Ishigami M, Honda T, Trinh H, Watanabe T, Abe H, Preda C, Lee DH, Ishikawa T, Haga H, Liang J, Takahashi H, Vutien P, Landis C, Li J, Takaguchi K, Senoh T, Huang R, Wong GL, Wong VW, Lam CP, Huang DQ, Asai A, Ye Q, Do AT, Do S, Itokawa N, Nakamuta M, Nomura H, Kajiwara E, Azuma K, Dohmen K, Kawano A, Koyanagi T, Ooho A, Satoh T, Takahashi K, Yoon EL, Ahn SB, Jung JH, Kim SE, Kim GA, Jeong SW, Oh H, Yasuda S, Gao X, Zhao Y, Liu Y, Zhao C, Okubo T, Jun MJ, Alecu RI, Tay WX, Devan P, Liu JK, Kozuka R, Vargas-Accarino E, Inoue K, Maeda M, Eguchi Y, Ueno Y, Chuang WL, Huang JF, Dai CY, Henry L, Cheung R, Yeh ML, Tsai PC, Buti M, Lim SG, Wu C, Yuen MF, Furusyo N, Hayashi J, Yu ML, Tanaka Y, Nguyen MH.

    Liver Int   2026.03

  • Employment Status of Patients With Liver Disease: A Nationwide Questionnaire Survey in Japan Reviewed

    Tokumoto Y, Hiasa Y, Uchida Y, Oono T, Yukimoto A, Watanabe T, Sasaki R, Tatsuki S, Tanaka H, Inoue T, Horino M, Hirose A, Ikegami T, Inoue J, Isoda H, Takahashi H, Arao Y, Hidaka I, Tojima H, Kakizaki S, Shimakami T, Tatemichi M, Kagawa T, Ogawa K, Ohara M, Kozuka R, Enomoto M, Endo M, Eguchi Y, Nagata K, Korenaga M

    Hepatology Research   56 ( 2 )   214 - 222   2026.02

  • 12-Hydroxyheptadecatrienoic Acid Predicts Hepatocellular Carcinoma Development During Nucleos(t)ide Analogue Therapy Reviewed OA

    Ikenaga H, Kozuka R, Inoue K, Matsubara T, Odagiri N, Yoshida K, Kotani K, Kawamura E, Hagihara A, Fujii H, Enomoto M, Uchida-Kobayashi S.

    Cancers (Basel)   18 ( 4 )   542   2026.02

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  • 術後にタモキシフェンを長期投与したホルモン受容体陽性乳癌症例における脂肪肝の発症頻度と臨床検査値の変化 Reviewed

    焦 光裕, 髙田 晃次, 小田桐 直志, 小谷 晃平, 小塚 立蔵, 藤井 英樹, 打田(小林) 佐和子, 渡部 智加, 田内 幸枝, 荻澤 佳奈, 木下 春人, 森崎 珠実, 柏木 伸一郎, 榎本 大

    肝臓   2026

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    International / domestic magazine:Domestic journal  

  • Long-Term Effectiveness of Tenofovir Alafenamide Versus Entecavir in Treatment-Naive Chronic Hepatitis B: A Real-World Evidence from the Global Alliance for the Study of Hepatitis B Virus. Reviewed

    Li J, Liu JK, Chau A, Linden S, Tsai PC, Nozaki A, Vutien P, Uojima H, Toyoda H, Honda T, Trinh H, Abe H, Ishikawa T, Atsukawa M, Watanabe T, Tsuji K, Huang DQ, Takaguchi K, Itobayashi E, Marciano S, Rui F, Ni W, Takahashi H, Chuang WL, Dai CY, Huang JF, Huang CF, Yeh ML, Zhu Y, Itokawa N, Kozuka R, Inoue K, Senoh T, Maeda M, Ito T, Morimoto M, Cheung R, Gadano A, Enomoto M, Tanaka Y, Lim SG, Wu C, Yu ML, Nguyen MH.

    Am J Gastroenterol   2025.12

  • Differential HCC risk among HBV indeterminate types at baseline and by phase transition Reviewed

    Huang R, Trinh HN, Yasuda S, Chau A, Maeda M, Do AT, Huang DQ, Ito T, Honda T, Ishigami M, Kozuka R, Preda CM, Tseng CH, Marciano S, Tsai PC, Lee DH, Wong CC, Do S, Kawashima K, Zhang J, Marin RI, Sandra I, Li J, Ogawa E, Cheung R, Li J, Yu ML, Gadano A, Hsu YC, Buti M, Enomoto M, Lim SG, Wu C, Toyoda H, Nguyen MH.

    Gut   2025.10

  • Impact of Concurrent Steatotic Liver Disease and Chronic Hepatitis B on Treatment Response to Nucleos(t)ide Analogs. Reviewed

    Chau A, Li J, Jun DW, Hsu YC, Toyoda H, Yeh ML, Watanabe T, Honda T, Trinh H, Nozaki A, Uojima H, Ishikawa T, Huang DQ, Vutien P, Marciano S, Abe H, Atsukawa M, Enomoto M, Takahashi H, Tsuji K, Takaguchi K, Itobayashi E, Huang R, Tsai PC, Dai CY, Huang JF, Huang CF, Yoon E, Kim SE, Ahn SB, Kim GA, Jung JH, Jeong SW, Oh H, Hsiao T, Maeda M, Tseng CH, Yasuda S, Ishigami M, Chuma M, Ito T, Kawashima K, Liu JK, Itokawa N, Kozuka R, Inoue K, Senoh T, Chuang WL, Gadano A, Tanaka Y, Lim SG, Wu C, Cheung R, Yu ML, Nguyen MH.

    Journal of viral hepatitis   2025.10

  • Impact of metabolic dysfunction on treatment responses to nucleos(t)ide analogues in chronic hepatitis B: a retrospective multi-center REAL-B cohort study Reviewed

    Huang R, Jun DW, Toyoda H, Hsu YC, Trinh H, Nozaki A, Ishikawa T, Watanabe T, Uojima H, Huang DQ, Honda T, Tanaka Y, Vutien P, Marciano S, Abe H, Enomoto M, Atsukawa M, Takahashi H, Tsuji K, Itobayashi E, Takaguchi K, Tsai PC, Dai CY, Huang JF, Huang CF, Yeh ML, Yoon E, Kim SE, Ahn SB, Kim GA, Jung JH, Jeong SW, Oh H, Tseng CH, Ishigami M, Chau A, Hsiao T, Maeda M, Yasuda S, Chuma M, Ito T, Kawashima K, Liu JK, Gadano A, Kozuka R, Itokawa N, Inoue K, Senoh T, Li J, Chuang WL, Cheung R, Wu C, Yu ML, Nguyen MH.

    EClinicalMedicine   2025.08

  • Distribution, Characteristics, and Natural History of Diverse Types of Indeterminate Chronic Hepatitis B: A REAL-B Study. Reviewed

    Huang R, Do AT, Toyoda H, Li J, Yasuda S, Tsai PC, Yeh ML, Trinh H, Chau A, Huang DQ, Ogawa E, Ito T, Kozuka R, Atsukawa M, Marciano S, Honda T, Watanabe T, Itokawa N, Preda CM, Tseng CH, Barreira A, Inoue K, Takahashi H, Uojima H, Kawashima K, Hsu YC, Marin RI, Sandra I, Ishigami M, Li J, Zhang J, Do S, Maeda M, Lee DH, Chuang WL, Dai CY, Huang JF, Huang CF, Cheung R, Buti M, Tanaka Y, Yuen MF, Enomoto M, Gadano A, Lim SG, Yu ML, Wu C, Nguyen MH.

    Alimentary Pharmacology and Therapeutics   2025.08

  • Clinical usefulness of an ultra-high-sensitivity hepatitis B surface antigen assay to determine the cessation of treatment for HBV reactivation. Reviewed

    Suzuki T, Tamori A, Matsuura K, Inoue T, Kusumoto S, Hagiwara S, Sagi H, Kaneko A, Murakami S, Kawamra H, Fujiwara K, Aoyagi K, Enomoto M, Kozuka R, Kataoka H, Tanaka Y.

    Ann Hepatol   2025.01

  • Predictors of Immediate Deterioration of the Child-Pugh Classification From A to B After Transcatheter Arterial Chemo-Embolization for Treatment-Naive Hepatocellular Carcinoma. Reviewed

    Asano K, Kageyama K, Yamamoto A, Jogo A, Nakano M, Murai K, Yukawa-Muto Y, Odagiri N, Kotani K, Kozuka R, Kawamura E, Fujii H, Uchida-Kobayashi S, Enomoto M, Kawada N, Miki Y.

    Cancer Med   2024.11

  • Real-world Effectiveness and Tolerability of Interferon-free Direct-acting Antiviral for 15,849 Patients with Chronic Hepatitis C: A Multinational Cohort Study

    Ji F.

    Journal of Clinical and Translational Hepatology   12 ( 7 )   646 - 658   2024.07( ISSN:22250719

  • Sex and ethnic disparities in hepatitis B evaluation and treatment across the world

    Kudaravalli S.

    Journal of Hepatology   81 ( 1 )   33 - 41   2024.07( ISSN:01688278

  • Hepatitis B surface antigen glycan isomer is a predictor of the development of hepatocellular carcinoma during nucleoside/nucleotide analog therapy Reviewed

    2024.07 ( ISSN:13866346

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    Authorship:Lead author  

    DOI: 10.1111/hepr.14016

    PubMed

  • Mortality in patients with chronic hepatitis B treated with tenofovir or entecavir: A multinational study

    Jang T.Y.

    Journal of Gastroenterology and Hepatology (Australia)   39 ( 6 )   1190 - 1197   2024.06( ISSN:08159319

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  • Pretreatment gamma-glutamyl transferase predicts mortality in patients with chronic hepatitis B treated with nucleotide/nucleoside analogs

    Jang T.Y.

    Kaohsiung Journal of Medical Sciences   40 ( 2 )   188 - 197   2024.02( ISSN:1607551X

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  • 肝炎医療コーディネーターと連携した非専門医科のHCV抗体陽性者に対する効率的な個別勧奨 Reviewed

    小塚 立蔵, 榎本 大, 藤井 英樹, 打田(小林) 佐和子, 河田 則文, 是永 匡紹

    肝臓   2024

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    Authorship:Lead author   International / domestic magazine:Domestic journal  

  • Antiviral therapy substantially reduces HCC risk in patients with chronic hepatitis B infection in the indeterminate phase Reviewed

    Huang DQ, Tran A, Yeh ML, Yasuda S, Tsai PC, Huang CF, Dai CY, Ogawa E, Ishigami M, Ito T, Kozuka R, Enomoto M, Suzuki T, Yoshimaru Y, Preda CM, Marin RI, Sandra I, Tran S, Quek SXZ, Khine HHTW, Itokawa N, Atsukawa M, Uojima H, Watanabe T, Takahashi H, Inoue K, Maeda M, Hoang JK, Trinh L, Barnett S, Cheung R, Lim SG, Trinh HN, Chuang WL, Tanaka Y, Toyoda H, Yu ML, Nguyen MH.

    Hepatology   2023.11

  • Risk factors for liver-related and non-liver-related mortality following a sustained virological response after direct-acting antiviral treatment for hepatitis C virus infection in a real-world cohort

    Kozuka R.

    Journal of Viral Hepatitis   30 ( 5 )   374 - 385   2023.05( ISSN:13520504

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  • Short-term hepatocyte function and portal hypertension outcomes of sofosbuvir/velpatasvir for decompensated hepatitis C-related cirrhosis. Reviewed

    Kotani K, Enomoto M, Uchida-Kobayashi S, Tamori A, Yukawa-Muto Y, Odagiri N, Motoyama H, Kozuka R, Kawamura E, Hagihara A, Fujii H, Kageyama K, Yamamoto A, Yoshida A, Higashiyama S, Kawabe J, Kawada N.

    Journal of Gastroenterology   2023.04

  • Severity of Liver Fibrosis Is Associated with the Japanese Diet Pattern and Skeletal Muscle Mass in Patients with Nonalcoholic Fatty Liver Disease. Reviewed

    Matsumoto Y, Fujii H, Harima M, Okamura H, Yukawa-Muto Y, Odagiri N, Motoyama H, Kotani K, Kozuka R, Kawamura E, Hagihara A, Uchida-Kobayashi S, Enomoto M, Yasui Y, Habu D, Kawada N.

    Nutrients   2023.02

  • Effectiveness of entecavir vs tenofovir disoproxil fumarate for functional cure of chronic hepatitis B in an international cohort. Reviewed

    Hsu YC, Jun DW, Peng CY, Yeh ML, Trinh H, Wong GL, Kim SE, Chen CH, Oh H, Lin CH, Trinh L, Wong VW, Yoon E, Ahn SB, Huang D, Cho YK, Jeong JY, Jeong SW, Kim HS, Xie Q, Liu L, Riveiro-Barciela M, Tsai PC, Accarino EV, Toyoda H, Enomoto M, Preda C, Marciano S, Hoang J, Huang CF, Kozuka R, Yasuda S, Istratescu D, Lee DH, Su JY, Huang YT, Huang JF, Dai CY, Chuang WL, Yuen MF, Gadano A, Cheung R, Lim SG, Buti M, Yu ML, Nguyen MH.

    Hepatol Int   2022.12

  • Suppression of intrahepatic cholangiocarcinoma cell growth by SKI via upregulation of the CDK inhibitor p21. Reviewed

    Kawamura E, Matsubara T, Daikoku A, Deguchi S, Kinoshita M, Yuasa H, Urushima H, Odagiri N, Motoyama H, Kotani K, Kozuka R, Hagihara A, Fujii H, Uchida-Kobayashi S, Tanaka S, Takemura S, Iwaisako K, Enomoto M, Taguchi YH, Tamori A, Kubo S, Ikeda K, Kawada N.

    FEBS Open Bio   2022.12

  • Efficacy of rechallenge transcatheter arterial chemoembolization after lenvatinib treatment for advanced hepatocellular carcinoma. Reviewed

    Uchida-Kobayashi S, Kageyama K, Takemura S, Matsumoto K, Odagiri N, Jogo A, Kotani K, Kozuka R, Motoyama H, Kawamura E, Hagihara A, Yamamoto A, Fujii H, Tanaka S, Enomoto M, Tamori A, Miki Y, Kubo S, Kawada N.

    JGH Open   2022.09

  • Progression Rates by Age, Sex, Treatment, and Disease Activity by AASLD and EASL Criteria: Data for Precision Medicine.

    Park J, Le AK, Tseng TC, Yeh ML, Jun DW, Trinh H, Wong GLH, Chen CH, Peng CY, Kim SE, Oh H, Kwak MS, Cheung KS, Toyoda H, Hsu YC, Jeong JY, Yoon EL, Ungtrakul T, Zhang J, Xie Q, Ahn SB, Enomoto M, Shim JJ, Cunningham C, Jeong SW, Cho YK, Ogawa E, Huang R, Lee DH, Takahashi H, Tsai PC, Huang CF, Dai CY, Tseng CH, Yasuda S, Kozuka R, Li J, Wong C, Wong CC, Zhao C, Hoang J, Eguchi Y, Wu C, Tanaka Y, Gane E, Tanwandee T, Cheung R, Yuen MF, Lee HS, Yu ML, Kao JH, Yang HI, Nguyen MH.

    Clin Gastroenterol Hepatol   2022.04

  • Longitudinal renal changes in chronic hepatitis B patients treated with entecavir versus TDF: a REAL-B study. Reviewed

    Mak LY, Hoang J, Jun DW, Chen CH, Peng CY, Yeh ML, Kim SE, Huang DQ, Jeong JY, Yoon E, Oh H, Tsai PC, Huang CF, Ahn SB, Trinh H, Xie Q, Wong GLH, Enomoto M, Shim JJ, Lee DH, Liu L, Kozuka R, Cho YK, Jeong SW, Kim HS, Trinh L, Dao A, Huang R, Hui RW, Tsui V, Quek S, Khine HHTW, Ogawa E, Dai CY, Huang JF, Cheung R, Wu C, Chuang WL, Lim SG, Yu ML, Yuen MF, Nguyen MH.

    Hepatol Int   2022.02

  • Soluble programmed cell death-1 predicts hepatocellular carcinoma development during nucleoside analogue treatment. Reviewed

    Kozuka R, Enomoto M, Dong MP, Hai H, Thuy LTT, Odagiri N, Yoshida K, Kotani K, Motoyama H, Kawamura E, Hagihara A, Fujii H, Uchida-Kobayashi S, Tamori A, Kawada N.

    Sci Rep   2022.01

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    Authorship:Lead author  

  • Direct-acting antivirals reduce the risk of tumour progression of hepatocellular carcinoma after curative treatment. Reviewed

    Ikenaga H, Uchida-Kobayashi S, Tamori A, Odagiri N, Yoshida K, Kotani K, Motoyama H, Kozuka R, Kawamura E, Hagihara A, Fujii H, Enomoto M, Kawada N.

    Journal of Viral Hepatitis   2022.01

  • On-treatment gamma-glutamyl transferase predicts the development of hepatocellular carcinoma in chronic hepatitis B patients. Reviewed

    Huang CF, Jang TY, Jun DW, Ahn SB, An J, Enomoto M, Takahashi H, Ogawa E, Yoon E, Jeong SW, Shim JJ, Jeong JY, Kim SE, Oh H, Kim HS, Cho YK, Kozuka R, Inoue K, Cheung KS, Mak LY, Huang JF, Dai CY, Yuen MF, Nguyen MH, Yu ML.

    Liver Int   2022.01

  • Incidences and Determinants of Functional Cure During Entecavir or Tenofovir Disoproxil Fumarate for Chronic Hepatitis B. Reviewed

    Hsu YC, Yeh ML, Wong GL, Chen CH, Peng CY, Buti M, Enomoto M, Xie Q, Trinh H, Preda C, Liu L, Cheung KS, Yeo YH, Hoang J, Huang CF, Riveiro-Barciela M, Kozuka R, Istratescu D, Tsai PC, Accarino EV, Lee DH, Wu JL, Huang JF, Dai CY, Cheung R, Chuang WL, Yuen MF, Wong VW, Yu ML, Nguyen MH.

    J Infect Dis   2021.12

  • Outcome of nucleos(t)ide analog intervention in patients with preventive or on-demand therapy for hepatitis B virus reactivation. Reviewed

    Tamori A, Kimura K, Kioka K, Enomoto H, Odagiri N, Kozuka R, Uchida-Kobayashi S, Enomoto M, Kawada N, Mizokami M.

    J Med Virol   2021.06

  • Transition rates to cirrhosis and liver cancer by age, gender, disease and treatment status in Asian chronic hepatitis B patients. Reviewed

    Liu M, Tseng TC, Jun DW, Yeh ML, Trinh H, Wong GLH, Chen CH, Peng CY, Kim SE, Oh H, Kwak MS, Cheung M, Toyoda H, Hsu YC, Jeong JY, Yoon EL, Ungtrakul T, Zhang J, Xie Q, Ahn SB, Enomoto M, Shim JJ, Cunningham C, Jeong SW, Cho YK, Ogawa E, Huang R, Lee DH, Takahashi H, Tsai PC, Huang CF, Dai CY, Tseng CH, Yasuda S, Kozuka R, Li J, Wong C, Wong CC, Zhao C, Hoang J, Eguchi Y, Wu C, Tanaka Y, Gane E, Tanwandee T, Cheung R, Yuen MF, Lee HS, Yu ML, Kao JH, Yang HI, Nguyen MH.

    Hepatol Int   2021.02

  • Serum Mac-2-binding protein glycosylation isomer predicts esophagogastric varices in cirrhotic patients with chronic hepatitis C virus infection treated with IFN-free direct-acting antiviral agent: M2BPGi levels predict varices in SVR patients. Reviewed

    Kikukawa K, Uchida-Kobayashi S, Tamori A, Yoshida K, Kotani K, Motoyama H, Kozuka R, Hagihara A, Fujii H, Morikawa H, Enomoto M, Murakami Y, Kawada N.

    Ann Hepatol   2020.07

  • High dropout rate from aftercare program of antihepatitis C therapy for patients with history of injection drug use. Reviewed

    Tamori A, Uchida-Kobayashi S, Kozuka R, Motoyama H, Yoshida K, Odagiri N, Kotani K, Kawamura E, Fujii H, Hagihara A, Enomoto M, Kawada N.

    JGH Open   2020.06

  • Tenofovir Versus Entecavir for Hepatocellular Carcinoma Prevention in an International Consortium of Chronic Hepatitis B.

    Hsu YC, Wong GL, Chen CH, Peng CY, Yeh ML, Cheung KS, Toyoda H, Huang CF, Trinh H, Xie Q, Enomoto M, Liu L, Yasuda S, Tanaka Y, Kozuka R, Tsai PC, Huang YT, Wong C, Huang R, Jang TY, Hoang J, Yang HI, Li J, Lee DH, Takahashi H, Zhang JQ, Ogawa E, Zhao C, Liu C, Furusyo N, Eguchi Y, Wong C, Wu C, Kumada T, Yuen MF, Yu ML, Nguyen MH.

    Am J Gastroenterol   2020.02

  • Development of a novel anti-hepatitis B virus agent via Sp1. Reviewed

    Hayakawa M, Umeyama H, Iwadate M, Taguchi YH, Yano Y, Honda T, Itami-Matsumoto S, Kozuka R, Enomoto M, Tamori A, Kawada N, Murakami Y.

    Sci Rep   2020.01

  • Real-World Effectiveness From the Asia Pacific Rim Liver Consortium for HBV Risk Score for the Prediction of Hepatocellular Carcinoma in Chronic Hepatitis B Patients Treated With Oral Antiviral Therapy. Reviewed

    Yang HI, Yeh ML, Wong GL, Peng CY, Chen CH, Trinh HN, Cheung KS, Xie Q, Su TH, Kozuka R, Lee DH, Ogawa E, Zhao C, Ning HB, Huang R, Li J, Zhang JQ, Ide T, Xing H, Iwane S, Takahashi H, Wong C, Wong C, Lin CH, Hoang J, Le A, Henry L, Toyoda H, Ueno Y, Gane EJ, Eguchi Y, Kurosaki M, Wu C, Liu C, Shang J, Furusyo N, Enomoto M, Kao JH, Yuen MF, Yu ML, Nguyen MH.

    J Infect Dis   2020.01

  • Switching to tenofovir disoproxil fumarate vs continuing treatment in patients with chronic hepatitis B who maintain long-term virological response to entecavir therapy: A randomized trial. Reviewed

    Iida-Ueno A, Enomoto M, Kozuka R, Tamori A, Kawada N.

    J Med Virol   2019.07

  • Association between HLA-DQA1/DRB1 polymorphism and development of hepatocellular carcinoma during entecavir treatment. Reviewed

    Kozuka R, Enomoto M, Sato-Matsubara M, Yoshida K, Motoyama H, Hagihara A, Fujii H, Uchida-Kobayashi S, Morikawa H, Tamori A, Kawada N, Murakami Y.

    J Gastroenterol Hepatol   2019.05

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    Authorship:Lead author  

  • Short-term histological evaluations after achieving a sustained virologic response to direct-acting antiviral treatment for chronic hepatitis C. Reviewed

    Enomoto M, Ikura Y, Tamori A, Kozuka R, Motoyama H, Kawamura E, Hagihara A, Fujii H, Uchida-Kobayashi S, Morikawa H, Murakami Y, Kawada N.

    United European Gastroenterol J   2018.11

  • The presence of multiple NS5A RASs is associated with the outcome of sofosbuvir and ledipasvir therapy in NS5A inhibitor-naïve patients with chronic HCV genotype 1b infection in a real-world cohort. Reviewed

    Kozuka R, Hai H, Motoyama H, Hagihara A, Fujii H, Uchida-Kobayashi S, Morikawa H, Enomoto M, Murakami Y, Kawada N, Tamori A.

    J Viral Hepat   2018.05

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    Authorship:Lead author  

  • Sequential therapy involving an early switch from entecavir to pegylated interferon-α in Japanese patients with chronic hepatitis B. Reviewed

    Enomoto M, Nishiguchi S, Tamori A, Kozuka R, Fujii H, Uchida-Kobayashi S, Fukunishi S, Tsuda Y, Higuchi K, Saito M, Enomoto H, Kawada N.

    Hepatology Research   2018.05

  • Stagnation of histopathological improvement is a predictor of hepatocellular carcinoma development after hepatitis C virus eradicatio Reviewed

    Motoyama H, Tamori A, Kubo S, Uchida-Kobayashi S, Takemura S, Tanaka S, Ohfuji S, Teranishi Y, Kozuka R, Kawamura E, Hagihara A, Morikawa H, Enomoto M, Murakami Y, Kawada N.

    PLoS One   2018.03

  • Outcomes for Cirrhotic Patients with Hepatitis C Virus 1b Treated with Asunaprevir and Daclatasvir Combination. Reviewed

    Tamori A, Hai H, Uchida-Kobayashi S, Enomoto M, Kozuka R, Motoyama H, Kawamura E, Hagihara A, Teranishi Y, Yoshida K, Morikawa H, Murakami Y, Kawada N.

    Ann Hepatol   2017.09

  • Correlation between polymorphism in the inosine triphosphatase and the reductions in hemoglobin concentration and ribavirin dose during sofosbuvir and ribavirin therapy. Reviewed

    Kozuka R, Hai H, Teranishi Y, Motoyama H, Kawamura E, Hagihara A, Uchida-Kobayashi S, Morikawa H, Enomoto M, Murakami Y, Kawada N, Tamori A.

    J Gastroenterol Hepatol   2017.08

  • Long-Term Follow-Up of Resistance-Associated Substitutions in Hepatitis C Virus in Patients in Which Direct Acting Antiviral-Based Therapy Failed. Reviewed

    Yoshida K, Hai H, Tamori A, Teranishi Y, Kozuka R, Motoyama H, Kawamura E, Hagihara A, Uchida-Kobayashi S, Morikawa H, Enomoto M, Murakami Y, Kawada N.

    Int J Mol Sci   2017.05

  • Direct-acting antivirals治療例におけるC型肝炎ウイルス感染経路の検討―再感染リスクを踏まえ Reviewed

    湯川 芳美, 田守 昭博, 寺西 優雅, 元山 宏行, 小塚 立蔵, 川村 悦史, 萩原 淳司, 打田(小林) 佐和子, 森川 浩安, 榎本 大, 村上 善基, 福島 若葉, 河田 則文

    肝臓   2017

  • Randomized trial of combined triple therapy comprising two types of peginterferon with simeprevir in patients with hepatitis C virus genotype 1 Reviewed

    Tamori A, Yoshida K, Kurai O, Kioka K, Hai H, Kozuka R, Motoyama H, Kawamura E, Hagihara A, Uchida-Kobayashi S, Morikawa H, Enomoto M, Murakami Y, Kawada N.

    Hepatology Research   2016.12

  • 当院における肝炎ウイルス検査の実施状況と陽性者に対する受診勧奨システム構築による院内連携の変化について Reviewed

    打田(小林) 佐和子, 榎本 大, 藤井 英樹, 飯田(上野) 綾子, 元山 宏行, 小塚 立蔵, 萩原 淳司, 川村 悦史, 森川 浩安, 村上 善基, 田守 昭博, 河田 則文

    肝臓   2016

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    International / domestic magazine:Domestic journal  

  • Long-Term Outcome of Sequential Therapy with Lamivudine Followed by Interferon-β in Nucleoside-Naive, Hepatitis B e-Antigen-Positive Patients with Chronic Hepatitis B Virus Genotype C Infection. Reviewed

    Enomoto M, Nishiguchi S, Tamori A, Kozuka R, Hayashi T, Kohmoto MT, Jomura H, Morikawa H, Murakami Y, Shiomi S, Kawada N.

    J Interferon Cytokine Res   2015.08

  • Combination therapy of natural human interferon-beta and ribavirin for chronic hepatitis C patients with injection drug use. Reviewed

    Morikawa H, Kozuka R, Fujii H, Iwai S, Enomoto M, Tamori A, Saito S, Kawada N.

    Hepatology Research   2013.10

  • Changes in sequences of core region, interferon sensitivity-determining region and interferon and ribavirin resistance-determining region of hepatitis C virus genotype 1 during interferon-alpha and ribavirin therapy, and efficacy of retreatment. Reviewed

    Kozuka R, Enomoto M, Hai H, Ogawa T, Nakaya M, Hagihara A, Fujii H, Kobayashi S, Iwai S, Morikawa H, Tamori A, Kawada N.

    Hepatology Research   2012.12

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MISC

  • Reply to Letter to the Editor: Regarding the “Hepatitis B surface antigen glycan isomer is a predictor of the development of hepatocellular carcinoma during nucleoside/nucleotide analog therapy” Reviewed

    2024.12 ( ISSN:13866346

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    Authorship:Lead author  

    DOI: 10.1111/hepr.14105

    PubMed

  • Editorial: risk of renal function decline in patients with chronic hepatitis B virus infection treated with nucleos(t)ide analogues

    Kozuka R.

    Alimentary Pharmacology and Therapeutics   58 ( 1 )   124 - 125   2023.07( ISSN:02692813

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  • Sofosbuvir/Velpatasvir Plus Ribavirin Combination Therapy for Patients with Hepatitis C Virus Genotype 1a, 2a, or 3b after Glecaprevir/Pibrentasvir Therapy Failed. Reviewed

    Nonomura A, Tamori A, Hai H, Kozuka R, Fujii H, Uchida-Kobayashi S, Enomoto M, Kawada N.

    Intern Med   2021.11

  • 肝機能障害を契機に診断されたサルコイドーシス5例の検討 Reviewed International journal

    焦 光裕, 榎本 大, 小谷 晃平, 小田桐 直志, 吉田 香奈子, 元山 宏行, 小塚 立蔵, 藤井 英樹, 萩原 淳司, 打田 佐和子, 森川 浩安, 村上 善基, 田守 昭博, 河田 則文

    肝臓   2019

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  • ダクラタスビル/アスナプレビル治療が著効したクリオグロブリン血管炎合併C型慢性肝疾患の一例 Reviewed International journal

    髙田 さゆり, 打田(小林) 佐和子, 飯田(上野) 綾子, 寺西 優雅, 元山 宏行, 小塚 立蔵, 川村 悦史, 萩原 淳司, 石津 弘隆, 森川 浩安, 榎本 大, 村上 善基, 田守 昭博, 河田 則文

    肝臓   2016

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  • Anti-hepatitis B virus therapy: To stop, or not to stop: Has the question been solved? Reviewed

    Kozuka R, Enomoto M, Morikawa H, Tamori A, Kawada N.

    Hepatology Research   2012.09

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    Authorship:Lead author  

  • 各種治療に抵抗性を示した自己免疫性肝炎の1例 Reviewed International journal

    小塚 立蔵, 岩井 秀司, 遠山 まどか, 藤井 英樹, 安田 隆弘, 小林 佐和子, 黒岡 浩子, 中山 祐史, 榎本 大, 森川 浩安, 田守 昭博, 坂口 浩樹, 河田 則文

    2009

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    Authorship:Lead author   International / domestic magazine:Domestic journal  

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Presentations

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Grant-in-Aid for Scientific Research

  • B型肝炎の治療抵抗性および病態進展を予測する免疫関連バイオマーカーの開発

    Grant-in-Aid for Scientific Research(C)  2027

  • B型肝炎の治療抵抗性および病態進展を予測する免疫関連バイオマーカーの開発

    Grant-in-Aid for Scientific Research(C)  2026

  • B型肝炎の治療抵抗性および病態進展を予測する免疫関連バイオマーカーの開発

    Grant-in-Aid for Scientific Research(C)  2025

  • B型肝炎での血清エクソソーム中マイクロRNAを用いた新規肝発癌予測マーカーの開発

    Grant-in-Aid for Early-Career Scientists  2021

  • B型肝炎での血清エクソソーム中マイクロRNAを用いた新規肝発癌予測マーカーの開発

    Grant-in-Aid for Early-Career Scientists  2020

  • B型肝炎での血清エクソソーム中マイクロRNAを用いた新規肝発癌予測マーカーの開発

    Grant-in-Aid for Early-Career Scientists  2019

  • B型肝炎での血清エクソソーム中マイクロRNAを用いた新規肝発癌予測マーカーの開発

    Grant-in-Aid for Early-Career Scientists  2018

  • 肝発癌例での次世代シークエンサーを用いたHBV遺伝子変異と宿主遺伝子多型の解析

    Grant-in-Aid for Young Scientists(B)  2016

  • 肝発癌例での次世代シークエンサーを用いたHBV遺伝子変異と宿主遺伝子多型の解析

    Grant-in-Aid for Young Scientists(B)  2015

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Incentive donations / subsidies

  • 血清エクソソーム中のマイクロRNAを用いた肝発癌予測の研究

    公益財団法人大阪難病研究財団  医学研究助成金  2017

Other subsidies, etc.

  • 厚生労働科学研究費補助金・肝炎等克服政策研究事業「肝炎ウイルス検査の受検及び受診の向上につなげる方策の策定のための研究」

    2026.04

  • 厚生労働科学研究費補助金・肝炎等克服政策研究事業「肝炎ウイルス検査受検率の向上及び受診へ円滑につなげる方策の確立に資する研究」

    2025.04

  • 厚生労働科学研究費補助金・肝炎等克服政策研究事業「肝炎ウイルス検査受検率の向上及び受診へ円滑につなげる方策の確立に資する研究」

    2024.04

  • 厚生労働科学研究費補助金・肝炎等克服政策研究事業「肝炎ウイルス検査受検率の向上及び受診へ円滑につなげる方策の確立に資する研究」

    2023.04

  • 厚生労働科学研究費補助金・肝炎等克服政策研究事業「新たな手法を用いた肝炎ウイルス検査受検率・陽性者受診率の向上に資する研究」

    2022.04

Charge of on-campus class subject

  • 肝胆膵病態内科学(肝疾患各論)

    2025   Intensive lecture   Graduate school

  • 肝胆膵病態内科学(胆膵疾患各論)

    2025   Intensive lecture   Graduate school

  • 肝胆膵病態内科学演習(基礎研究計画演習)

    2025   Intensive lecture   Graduate school

  • 肝胆膵病態内科学演習(臨床研究計画演習)

    2025   Intensive lecture   Graduate school

  • 肝胆膵病態内科学(肝胆膵腫瘍学特論)

    2025   Intensive lecture   Graduate school

  • 臨床医科学(肝胆膵病態内科学)

    2025   Intensive lecture   Graduate school

  • 肝胆膵病態内科学(総論)

    2025   Intensive lecture   Graduate school

  • 肝胆膵病態内科学(肝感染症学特論)

    2025   Intensive lecture   Graduate school

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Social Activities ⇒ Link to the list of Social Activities

  • 第2回肝臓病市民公開講座「B型・C型肝炎の現状と今後」

    Role(s): Panelist, Lecturer

    Type: Lecture

    大阪公立大学医学部附属病院  2026.03