Zobrazeno 1 - 10
of 537
pro vyhledávání: '"KAZUHIKO OGAWA"'
Autor:
Masashi Yagi, Yushi Wakisaka, Jun Takeno, Shintaro Kanada, Toshiro Tsubouchi, Noriaki Hamatani, Hiroyasu Maruo, Masaaki Takashina, Takayoshi Ishii, Tatsuaki Kanai, Shinichi Shimizu, Kazuhiko Ogawa
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract Few reports have documented how the accuracy of stopping power ratio (SPR) prediction for porous bone tissue affects the dose distribution of scanned carbon-ion beam therapy. The estimated SPR based on single-energy computed tomography (SECT
Externí odkaz:
https://doaj.org/article/b896506266b34466894be2b72986ed55
Autor:
Naoyuki Kanayama, Toshiki Ikawa, Koji Takano, Hideyuki Arita, Masahiro Morimoto, Takero Hirata, Kazuhiko Ogawa, Teruki Teshima, Koji Konishi
Publikováno v:
Radiation Oncology, Vol 19, Iss 1, Pp 1-8 (2024)
Abstract Background Fractionated stereotactic radiosurgery (fSRS) is an important treatment strategy for unresected brain metastases. We previously reported that a good volumetric response 6 months after fSRS can be the first step for local control.
Externí odkaz:
https://doaj.org/article/08e9a861c6b141ca96c87e73db5f2b09
Autor:
Masashi Yagi, Shinichi Shimizu, Noriaki Hamatani, Takuto Miyoshi, Takuya Nomura, Takashi Toyoda, Mahoro Nakatani, Toshiro Tsubouchi, Masaki Shimizu, Yoshiaki Kuwana, Masumi Umezawa, Masaaki Takashina, Teiji Nishio, Masahiko Koizumi, Kazuhiko Ogawa, Tatsuaki Kanai
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract The current monochromatic beam mode (i.e., uHDR irradiation mode) of the scanned carbon-ion beam lacks a dedicated dose monitor, making the beam control challenging. We developed and characterized a dedicated dose monitor for uHDR-scanned ca
Externí odkaz:
https://doaj.org/article/4e1450a2a4aa433a8d6bf61fff332c36
Autor:
Kazuhiko Hayashi, Osamu Suzuki, Yushi Wakisaka, Koji Ichise, Hirofumi Uchida, Makoto Anzai, Azusa Hasegawa, Yuji Seo, Shinichi Shimizu, Takayoshi Ishii, Teruki Teshima, Jiro Fujimoto, Kazuhiko Ogawa
Publikováno v:
Radiation Oncology, Vol 19, Iss 1, Pp 1-8 (2024)
Abstract Background Radiation-induced liver damage (RILD) occasionally occurs following carbon-ion radiotherapy (CIRT) for liver tumors, such as hepatocellular carcinoma (HCC), in patients with impaired liver function disease. However, the associated
Externí odkaz:
https://doaj.org/article/03a9d0bfd88e4c4f81b65bdc5e51250b
Autor:
Keisuke Tamari, Maiko Kishigami, Yasushi Nagata, Takashi Mizowaki, Takeshi Kodaira, Hiroshi Onishi, Kazuhiko Ogawa, Yoshiyuki Shioyama, Naoyuki Shigematsu, Takashi Uno
Publikováno v:
Cancer Medicine, Vol 12, Iss 22, Pp 21032-21040 (2023)
Abstract Background This study analyzed the impact of the coronavirus disease 2019 (COVID‐19) pandemic on radiotherapy delivery in Japan using a high‐quality Japanese national database based on universal health coverage. Methods We performed a re
Externí odkaz:
https://doaj.org/article/b587ef6b609b412788bcaf0f670478f1
Autor:
Qingji Huo, Kexin Li, Xun Sun, Adam Zhuang, Kazumasa Minami, Keisuke Tamari, Kazuhiko Ogawa, Melissa L. Fishel, Bai-Yan Li, Hiroki Yokota
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-14 (2023)
Abstract Pancreatic ductal adenocarcinoma (PDAC) is an aggressive cancer with poor survival. To explore an uncharted function of K-Ras proto-oncogene, K-Ras was activated in mesenchymal stem cells (MSCs) and the effects of MSC conditioned medium (CM)
Externí odkaz:
https://doaj.org/article/241ef6bb62994112a7ee762cd7befd94
Autor:
Kexin Li, Xun Sun, Hudie Li, Hailan Ma, Meng Zhou, Kazumasa Minami, Keisuke Tamari, Kazuhiko Ogawa, Pankita H. Pandya, M. Reza Saadatzadeh, Melissa A. Kacena, Karen E. Pollok, Bai-Yan Li, Hiroki Yokota
Publikováno v:
Genes and Diseases, Vol 10, Iss 4, Pp 1641-1656 (2023)
Cancer cells tend to develop resistance to chemotherapy and enhance aggressiveness. A counterintuitive approach is to tame aggressiveness by an agent that acts opposite to chemotherapeutic agents. Based on this strategy, induced tumor-suppressing cel
Externí odkaz:
https://doaj.org/article/d040b7e31d9e44aebea1c63c1d145289
Autor:
Kazuhiko Hayashi, Osamu Suzuki, Hiroya Shiomi, Hitoshi Ono, Akira Setoguchi, Masataka Nakai, Erina Nakanishi, Shotaro Tatekawa, Naoko Ose, Takero Hirata, Keisuke Tamari, Yuji Seo, Soichiro Funaki, Fumiaki Isohashi, Shinichi Shimizu, Yasushi Shintani, Kazuhiko Ogawa
Publikováno v:
BMC Cancer, Vol 23, Iss 1, Pp 1-10 (2023)
Abstract Background The CyberKnife system features a robotically-positioned linear accelerator to deliver real-time image-guided stereotactic ablative body radiotherapy (SABR). It achieves steep dose gradients using irradiation from hundreds of diffe
Externí odkaz:
https://doaj.org/article/cc6a265abe5443ba95328164691fc0a5
Autor:
Naoyuki Kanayama, Toshiki Ikawa, Shingo Ohira, Takero Hirata, Masahiro Morimoto, Kazuhiko Ogawa, Teruki Teshima, Koji Konishi
Publikováno v:
Cancer Medicine, Vol 11, Iss 24, Pp 4806-4815 (2022)
Abstract Background and Purpose Few reports include volumetric measurements as endpoints after stereotactic radiotherapy (SRT) despite the importance of such measurements. This study aimed to (1) investigate the impact of the volumetric response (spe
Externí odkaz:
https://doaj.org/article/378608f584c14762a5dc6e9d9f92e6d9
Autor:
Shotaro Tatekawa, Keisuke Tamari, Ryota Chijimatsu, Masamitsu Konno, Daisuke Motooka, Suguru Mitsufuji, Hirofumi Akita, Shogo Kobayashi, Yoshiki Murakumo, Yuichiro Doki, Hidetoshi Eguchi, Hideshi Ishii, Kazuhiko Ogawa
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-20 (2022)
Abstract In pancreatic cancer, methyltransferase-like 3 (METTL3), a N(6)-methyladenosine (m6A) methyltransferase, has a favorable effect on tumors and is a risk factor for patients’ prognosis. However, the details of what genes are regulated by MET
Externí odkaz:
https://doaj.org/article/7e0bd74eab3f4a91a581cff49c3255fe