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J-GLOBAL ID：202401020050714639 Update date: Feb. 27, 2025

Koizumi Koichi

コイズミコウイチ | Koizumi Koichi

Affiliation and department：
Job title： lecturer

Research keywords (8)： WNT , NSAIDs , β-catenin , VEGF , VEGF , oral cancer , molecular target therapy , Circulating Tumor Cell

Research theme for competitive and other funds (7)：

2022 - 2025 Development of detection system for oral cancer patient's blood circulating tumor cells and prediction of clinical pathology and prognosis using it
2018 - 2021 Establishment study of liquid biopsy by isolation of circulating oral cancer cells in blood and analysis of their cell characteristics
2012 - 2015 Development research of new therapies targeting VEGF receptor that was expressed in oral cancer cells, and its signaling
2008 - 2010 Development research into molecular diagnosis and treatment method of carcinoma of the oral cavity targeting WNT signal system transfer factor group
2005 - 2006 Experimental study on the inhibition of invasion and metastasis of oral cancer by the suppression of processing of E-cadherin

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Papers (70)：

Yasuyuki Asada, Nanako Ito, Fumitaka Obayashi, Mirai Higaki, Atsuko Hamada, Sachiko Yamasaki, Koichi Koizumi, Souichi Yanamoto. Relationship between undernutrition and CDDP-induced nephrotoxicity in oral squamous cell carcinoma. Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology. 2025
Akira Imakiire, Sakiko Soutome, Keiichiro Miura, Nanako Ito, Mirai Higaki, Fumitaka Obayashi, Koichi Koizumi, Souichi Yanamoto, Tomohiro Yamada, Masahiro Umeda. Potential effect of topical antibiotics administration in the oral cavity on the reduced number of bacteria entering the lower respiratory tract after oral cancer surgery. Journal of Dental Sciences. 2025
Teru Uehara, Fumitaka Obayashi, Nanako Ito, Yasuyuki Asada, Erika Yamasaki, Atsuko Hamada, Toshinori Ando, Koichi Koizumi, Souichi Yanamoto. Two cases of pediatric-onset orofacial granulomatosis. Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology. 2024
Yasutaka Ishida, Koichi Koizumi, Seiya Hayashi, Fumitaka Obayashi, Mirai Higaki, Nanako Ito, Tomoaki Shintani, Souichi Yanamoto. A case of treatment-related myelodysplastic syndrome in the early stage after radiotherapy in a patient with cancer of the oral floor. Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology. 2024
Tadayoshi Nobumoto, Sachiko Yamasaki, Atsuko Hamada, Mirai Higaki, Nanako Ito, Fumitaka Obayashi, Yasutaka Ishida, Tomoaki Hamana, Tomoaki Shintani, Ryouji Tani, et al. Clinical significance and biological role of claudin-1 in oral squamous cell carcinoma cells. Oral surgery, oral medicine, oral pathology and oral radiology. 2024

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MISC (70)：

檜垣美雷, 小泉浩一, 國原颯斗, 安藤俊範, 濱田充子, 伊藤奈七子, 大林史誠, 烏帽子田夏希, 松山たまも, 岡本健人, et al. 口腔扁平上皮癌における頸部リンパ節転移の節外浸潤進達度と予後との関連性. 広島大学歯学雑誌. 2023. 55. 1. 52-53
檜垣美雷, 安藤俊範, 吉岡幸男, 小泉浩一, 浜名智昭, 山崎佐知子, 濱田充子, 伊藤奈七子, 木村直大, 田口有紀, et al. 口腔扁平上皮癌頸部リンパ節転移の節外浸潤進展度の臨床的意義に関する検討. 頭頸部癌. 2022. 48. 2. 219-219
林靖也, 吉岡幸男, 坂上泰士, 山崎佐知子, 浜名智昭, 角健作, 神田拓, 小泉浩一, 谷亮治, 林堂安貴, et al. 当科および関連病院における骨吸収抑制薬関連顎骨壊死(antiresorptive agent-related osteonecrosis of the jaw:ARONJ)の臨床的検討. 日本口腔科学会雑誌. 2020. 69. 3. 240-241
櫻井繁, 神田拓, 松井健作, 田口有紀, 小泉浩一, 吉岡幸男, 谷亮治, 林堂安貴, 虎谷茂昭, 岡本哲治. 当科で加療した歯原性角化嚢胞の臨床的検討. 日本口腔科学会雑誌. 2020. 69. 2. 84-84
吉岡幸男, 浜名智昭, 松井健作, 櫻井繁, 神田拓, 小泉浩一, 谷亮治, 虎谷茂昭, 岡本哲治. 当科におけるニボルマブによる口腔がん治療の報告. 日本口腔科学会雑誌. 2020. 69. 2. 96-97

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Lectures and oral presentations (146)：

高齢進行口腔癌に対する ERAS( 術後早期回復 ) プログラムの実用化にむけた予備的研究
(第42回日本口腔腫瘍学会総会・学術集会 2024)
口腔扁平上皮癌における血中循環腫瘍細胞および無細胞 DNA の経時的変化とその有用性についての検討
(第42回日本口腔腫瘍学会総会・学術集会 2024)
口腔扁平上皮癌における低栄養と CDDP 誘発性腎障害の関連について
(第42回日本口腔腫瘍学会総会・学術集会 2024)
進展口腔扁平上皮癌における術後合併症のリスク因子に関する検討
(第42回日本口腔腫瘍学会総会・学術集会 2024)
口腔癌患者における治療前栄養評価と予後に関する検討
(第42回日本口腔腫瘍学会総会・学術集会 2024)

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Education (2)：

2000 - 2005 Hiroshima University Graduate School, Division of Dental Research
1990 - 1996 Kyushu University Faculty of Dentistry

Professional career (1)：

Doctor of Philosophy in Dental Science (Hiroshima University)

Work history (9)：

2024/02/01 - Hiroshima Hospital Department of Oral and Maxillofacial Surgery Lecturer
2022/03/01 - 2024/01/31 Institute of Biomedical & Health Sciences, Hiroshima University oral oncology Assistant Professor
2019/04/01 - 2022/02/28 Hiroshima University Graduate School of Biomedical and Health Sciences Assistant Professor
2017/04/01 - 2019/03/31 Graduate School of Biomedical & Health Sciences,Hiroshima University Assistant Professor
2012/04/01 - 2017/03/31 Institute of Biomedical & Health Sciences, Hiroshima University Assistant Professor

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Committee career (31)：

2023/04 - 2024/03 マツダ株式会社マツダ病院非常勤歯科医師
2023/04 - 2024/03 IGL医療専門学校非常勤講師
2022/04 - 2023/03 マツダ株式会社マツダ病院非常勤歯科医師
2022/04 - 2023/03 IGL医療専門学校非常勤講師
2021/04 - 2022/03 マツダ株式会社マツダ病院非常勤歯科医師

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Association Membership(s) (7)：

Asian Association of Oral and Maxillofacial Surgeons , Japan Oral Oncology Group , Japanese Society of Oral Oncology , Japan society of head and neck cancer , Japanese Society for Jaw Deformities , Japanese Stomatological Society , Japanese Society of Oral & Maxillofacial Surgeons

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