OKAJIKA Hideaki

FacultyDepartment of Pediatric Surgery
PositionProfessor

Research Activities

Published Papers

  • Recipient colon preoperative treatment with type I collagenase and fibronectin promotes the growth of transplanted enteric neural crest cells into Auerbach’s plexus, Tsuyoshi Kuwahara, Yoshitomo Yasui, Hisayoshi Yoshizaki, Mari Morikawa, Miyuki Kohno & Hideaki Okajima, Pediatric Surgery International38:1793-1798Sep. 2022
  • Progress in living donor liver transplantation for biliary atresia and challenges faced: A thirty-year single institutional experience, (Tatsuya Okamoto), Hideaki Okajima, Eri Ogawa, Mari Sonoda, Elena Yukie Uebayashi, Takashi Ito, Satoru Seo, Koichiro Hata, Toshihiko Masui, Kojiro Taura, Shinji Uemoto, Etsurou Hatano, Journal of Pediatric Surgery57:649-655Nov. 2022
  • Two Cases of Possible Exacerbation of Chronic Rejection After Anti-SARS-CoV-2 Messenger RNA Vaccination: A Case Report, Tatsuya Okamoto, Hideaki Okajima, Eri Ogawa, Elena Yukie Uebayashi, Miki Yamamoto, Masashi Kadohisa, Yosuke Yamada, Sachiko Minamiguchi, Hironori Haga, Etsurou Hatano, Transplantation Proceedings30:1Nov. 2022
  • Successful right hepatic trisectionectomy following percutaneous transhepatic portal embolization in a pediatric patient with undifferentiated embryonal sarcoma of the liver, (Kagehiro Kouzuki), Katsutsugu Umeda, Satoshi Saida, Itaru Kato, Hidefumi Hiramatsu, Tatsuya Okamoto, Eri Ogawa, Hideaki Okajima, Akihiro Furuta, Souichi Adachi, Tomoo Daifu, Junko Takita, Pediatric Blood and Cancer69:e29369Feb. 2022
  • Increased Expressions of Programmed Death Ligand 1 and Galectin 9 in Transplant Recipients Who Achieved Tolerance After Immunosuppression Withdrawal, (Nguyen Hai Nam), Kojiro Taura, Yukinori Koyama, Takahiro Nishio, Gen Yamamoto, Yusuke Uemoto, Yusuke Kimura, Li Xuefeng, Daichi Nakamura, Kenji Yoshino, Eri Ogawa, Tatsuya Okamoto, Atsushi Yoshizawa, Satoru Seo, Keiko Iwaisako, Tomoaki Yoh, Koichiro Hata, Toshihiko Masui, Hideaki Okajima, Hironori Haga, Shinji Uemoto, Etsuro Hatano, Liver Transplantation28:647-658Apr. 2022
  • Feasibility of Real-Time Central Surgical Review for Patients with Advanced-Stage Hepatoblastoma in the JPLT3 Trial, (Tomoro Hishiki,) Shohei Honda, Yuichi Takama, Yukihiro Inomata, Hideaki Okajima, Ken Hoshino, Tatsuya Suzuki, Ryota Souzaki, Motoshi Wada, Mureo Kasahara, Koichi Mizuta, Takaharu Oue, Akiko Yokoi, Takuro Kazama, Shugo Komatsu, Isamu Saeki, Osamu Miyazaki, Tetsuya Takimoto, Kohmei Ida, Kenichiro Watanabe, Eiso Hiyama, Children-Basel9:234Oct. 2022
  • The New Challenge in Pediatric Liver Transplantation: Chronic Antibody-Mediated Rejection, (Elena Yukie Uebayashi), Hideaki Okajima, Miki Yamamoto, Eri Ogawa, Tatsuya Okamoto, Hironori Haga, Etsurou Hatano, Journal of Clinical Medicine11:4834Aug. 2022
  • Management of Epstein-Barr Virus Infection and Post-Transplant Lymphoproliferative Disorder in Pediatric Liver Transplantation, (Tatsuya Okamoto), Hideaki Okajima, Elena Yukie Uebayashi, Eri Ogawa, Yosuke Yamada, Katsutsugu Umeda, Hidefumi Hiramatsu, Etsurou Hatano, Journal of Clinical Medicine11:2166Apr. 2022
  • The impact of human leukocyte antigen mismatch on recipient outcomes in living-donor liver transplantation, (Tetsuya Tajima), Koichiro Hata, Jiro Kusakabe, Hidetaka Miyauchi, Kimiko Yurugi, Rie Hishida, Eri Ogawa, Tatsuya Okamoto, Mari Sonoda, Shoichi Kageyama, Xiangdong Zhao, Takashi Ito, Satoru Seo, Hideaki Okajima, Miki Nagao, Hironori Haga, Shinji Uemoto, Etsuro Hatano, Liver Transplantation28:1588-1602Oct. 2022
  • A Case of Epstein-Barr Virus-Associated Acute Liver Failure Requiring Hematopoietic Cell Transplantation After Emergent Liver Transplantation, (Koji Nakajima,) Eitaro Hiejima, Hiroshi Nihira, Kentaro Kato, Yoshitaka Honda, Kazushi Izawa, Naoko Kawabata, Itaru Kato, Eri Ogawa, Mari Sonoda, Tatsuya Okamoto, Hideaki Okajima, Takahiro Yasumi, Junko Takita, Frontiers in Immunology13:825806Jan. 2022
  • Differences in isolated bacteria between perforated and non-perforated appendicitis: an analysis of 680 consecutive appendicectomies in a single institution, Ryo Tamura, Kiyokuni Nakamura, Taichi Hirotani, Yoshitomo Yasui, Hideaki Okajima, Pediatric Surgery International38:1887-1893Dec. 2022
  • Transplanted neural crest cells migrate toward Auerbach’s plexus layer instead of the colon surface in recipient colon pretreated with collagenase and fibronectin, Yoshitomo Yasui, Hisayoshi Yoshizaki, Tsuyoshi Kuwahara, Shoichi Nishida, Miyuki Kohno, Hideaki Okajima, Biochemical and Biophysical Research Communications601:116-122Feb. 2022
  • Hypertrophic pyloric stenosis at birth: A case report, Mior Kidoi, Tsuyoshi Kuwahara, Yoshitomo Yasui, Hideaki Okajima,Miyuki Kohno., PEDIATRICS INTERNATIONAL63:231-2332021
  • Long-term Outcomes of Living-donor Liver Transplantation for Progressive Familial Intrahepatic Cholestasis Type 1, Tatsuya Okamoto, Mari Sonoda, Eri Ogawa, Shogo Ito, Takao Togawa , Hisamitsu Hayashi, Hideaki Okajima, Shiji Uemoto, J Pediatr Gastroenterol Nutr72:425-429Mar. 2021
  • Role of liver transplantation in urea cycle disorders: Report from a nationwide study in Japan, Jun Kido, Shirou Matsumoto, Johannes Häberle, Yukihiro Inomata, Mureo Kasahara, Seisuke Sakamoto, Reiko Horikawa, Akihiro Tanemura, Hideaki Okajima, Tatsuya Suzuki, Kimitoshi Nakamura, J Inherit Metab Dis44:1311-1322Jun. 2021
  • Loss of antibodies to hepatitis E virus in organ transplant patients with hepatitis E, Yukio Oshiro, Hiroshi Harada, Kiyoshi Hasegawa, Naotake Akutsu, Tomoharu Yoshizumi, Naoki Kawagishi, Koji Nanmoku, Naotsugu Ichimaru, Kenichi Okamura, Masahiro Ohira, Yoshihiro Itabashi, Nobuhiro Fujiyama, Kentaro Ide, Hideaki Okajima, Kohei Ogawa, Kosei Takagi, Hidetoshi Eguchi, Masahiro Shinoda, Kiyotaka Nishida, Jiro Shimazaki, Mitsugi Shimoda, Masaharu Takahashi, Hiroaki Okamoto, Shuji Suzuki, Hepatol Res51:538-547May 2021
  • Longterm Outcome of Liver Transplantation for Congenital Extrahepatic Portosystemic Shunt, Hajime Uchida, Seisuke Sakamoto, Mureo Kasahara, Hironori Kudo, Hideaki Okajima, Masaki Nio, Koji Umeshita, Hideki Ohdan, Hiroto Egawa, Shinji Uemoto, Japanese Liver Transplantation Society, Liver Transpl27:236-247Feb. 2021
  • An analysis of the outcomes in living donor liver transplantation for pediatric malignant hepatic tumors using nationwide survey data in Japan, Hajime Uchida, Seisuke Sakamoto, Mureo Kasahara, Yoshiyuki Ueno, Satoshi Mochida, Hironori Haga, Hideaki Okajima, Susumu Eguchi, Yasutsugu Takada, Koji Umeshita, Norihiro Kokudo, Hiroto Egawa, Shinji Uemoto, Hideki Ohdan, Japanese Liver Transplantation Society, Transpl Int34:1408-1421Aug. 2021
  • CD146 is a potential immunotarget for neuroblastoma, Satoshi Obu, Katsutsugu Umeda, Hiroo Ueno, Mari Sonoda, Keiji Tasaka, Hideto Ogata, Kagehiro Kouzuki, Seishiro Nodomi, Satoshi Saida, Itaru Kato, Hidefumi Hiramatsu, Tatsuya Okamoto, Eri Ogawa, Hideaki Okajima, Ken Morita, Yasuhiko Kamikubo, Koji Kawaguchi, Kenichiro Watanabe, Hideto Iwafuchi, Shigeki Yagyu, Tomoko Iehara, Hajime Hosoi, Tatsutoshi Nakahata, Souichi Adachi, Shinji Uemoto, Toshio Heike, Junko Takita, Cancer Science31:4617-4626Aug. 2021
  • Novel application of infliximab for diversion colitis, Miori Kido, Ryo Tamura, Yoshitomo Yasui, Hideaki Okajima, BMJ Case Reports14:e2432842021
  • Atypical presentation at acute gastritis: significant gastric wall thickening as a presentation of a primary Helicobacter pylori infection in children, Kiyokuni Nakamura, Tamura Ryo, Yasui Yoshitomo, Okajima Hideaki, BMJ case reports14:e2439122021
  • High-flow nasal cannula oxygen therapy: Alternative respiratory therapy for severe post-transplant hypoxemia in children with hepatopulmonary syndrome, Satoshi Hamada, Tatsuya Okamoto, Eri Ogawa, Mari Sonoda, Hideaki Okajima, Toyohiro Hirai, Tomohiro Handa, Shinji Uemoto, Kazuo Chin, Pediatric Transplantation24:e138132020
  • Reduced glycemic variability and flexible graft function after islet transplantation: A case report, Toshihiro Nakamura, Junji Fujikura, Takayuki Anazawa, Ryo Ito, Masahito Ogura, Hideaki Okajima, Hirofumi Noguchi, Shinji Uemoto, Nobuya Inagaki, Journal of Diabetes Investigation11:1677-16802020
  • Peroxiredoxin 4 promotes embryonal hepatoblastoma cell migration but induces fetal cell differentiation, Jianbo Zheng, Xin Guo, Akihiro Shioya, Takako Yoshioka, Kimikazu Matsumoto, Tsubasa Hiraki, Hironori Kusano, Takeru Oyama, Nozomu Kurose, Reimon Yamaguchi, Hidetaka Uramoto, Satoshi Ieiri, Hideaki Okajima, Miyuki Kohno, Sohsuke Yamada, American Journal of Translational Research12:2726-2737Jun. 2020
  • Mitomycin C treatment improves pancreatic islet graft longevity in intraportal islet transplantation by suppressing proinflammatory response, Kei Y, Takayuki A, Seiichiro T, Nanae F, Kenta I, Norio E, Kazuyuki N, Toshihiko M, Hideaki O,Kyoichi T, Shoichiro S, Shinji U, Scientific Reports10:120862020
  • Frequent mutations that converge on the NFKBIZ pathway in ulcerative colitis, Nobuyuki Kakiuchi, Kenichi Yoshida, Motoi Uchino, Takako Kihara, Kotaro Akaki, Yoshikage Inoue , Kenji Kawada, Satoshi Nagayama, Akira Yokoyama, Shuji Yamamoto, Minoru Matsuura, Takahiro Horimatsu, Tomonori Hirano, Norihiro Goto, Yasuhide Takeuchi, Yotaro Ochi, Yusuke Shiozawa, Yasunori Kogure, Yosaku Watatani, Yoichi Fujii, Soo Ki Kim, Ayana Kon, Keisuke Kataoka, Tetsuichi Yoshizato, Masahiro M Nakagawa, Akinori Yoda, Yasuhito Nanya, Hideki Makishima, Yuichi Shiraishi, Kenichi Chiba, Hiroko Tanaka, Masashi Sanada, Eiji Sugihara, Taka-Aki Sato, Takashi Maruyama, Hiroyuki Miyoshi, Makoto Mark Taketo, Jun Oishi, Ryosaku Inagaki, Yutaka Ueda, Shinya Okamoto, Hideaki Okajima, Yoshiharu Sakai, Takaki Sakurai, Hironori Haga, Seiichi Hirota, Hiroki Ikeuchi, Hiroshi Nakase, Hiroyuki Marusawa, Tsutomu Chiba, Osamu Takeuchi, Satoru Miyano, Hiroshi Seno, Seishi Ogawa, Nature577:260-2652020
  • Perihilar cholangiocarcinoma in an explanted liver after Kasai operation for biliary atresia: A case report and literature review, Shunsuke Uno, Tatsuki R Kataoka, Hideaki Okajima, Kojiro Taura, Takaki Sakurai, Hironori Haga, Pathology International70:888-8922020
  • Arteriovenous malformation that caused prolapse of the colon and was treated surgically in an infant: a case report, Kido M, Nakamura K, Kuwahara T, Yasui Y, Okajima H, Kurose N, Kohno M, Surgical case reports6:67Apr. 2020

Books etc

  • Chapter 37. Long-term Complications: Portopulmonary Hypertension
    Introduction to Biliary Atresia(Masaki Nio)
    Hideaki Okajima
    Springer Nature  Sep. 2021