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Keiji Hirai

Jichi Medical University

34H-index
271Paper Count
4.1KCitation Count
Published Papers 38
Publication Date
Early plasma volume and interstitial fluid responses to SGLT2 inhibitor, loop diuretics, and their combination in chronic kidney disease
err2026-07-30
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PREAI
errKosuke Yuyama; Takahiro Masuda; Ken Ohara; Maki Asakura-Kinoshita; Kentaro Oka; Masato Morinari; Keiji Hirai; Tetsu Akimoto; Daisuke Nagata; Yoshiyuki Morishita
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Dissection in a superficialized brachial artery for hemodialysis access: a case report
err2026-05-18
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PREAI
errYuyama, Kosuke; Nakada, Shota; Oe, Kazuho; Misawa, Kyohei; Nishihata, Junya; Kikuchi, Takako; Komada, Takanori; Hirai, Keiji; Masuda, Takahiro; Morishita, Yoshiyuki
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Prevalence of Significant Coronary Artery Stenosis and Relationship with Carotid Maximum Intima-Media Thickness in Asymptomatic Patients with Moderate-to-Severe Chronic Kidney Disease: A Single-Center; Prospective; Cross-Sectional Study
err2025-12-15
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errOAAI
errKeiji Hirai; Hirofumi Shibata; Kazuya Shizukuishi; Masashi Hatori; Yousuke Taniguchi; Yusuke Ugata; Hiroyuki Jinnouchi; Kiyonori Ito; Tamami Watanabe; Akira Onoguchi; Tatsuro Watano; Osamu Manabe; Kenichi Sakakura; Susumu Ookawara; Kiyoka Omoto; Noriko Oyama-Manabe; Hideo Fujita; Yoshiyuki Morishita
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SGLT2 inhibitor requires co-administration with diuretics to effectively reduce interstitial fluid retention: the DAPA-BODY trial
err2025-10-01
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PREAI
errTakahiro Masuda; Maki Asakura-Kinoshita; Kentaro Oka; Ken Ohara; Masato Sakai; Marina Miura; Kyohei Misawa; Keiji Hirai; Masato Morinari; Tetsu Akimoto; Kazuyuki Shimada; Daisuke Nagata; Yoshiyuki Morishita
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Efficacy of dapagliflozin on uric acid in patients with moderate-to-severe chronic kidney disease
err2025-09-01
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PREAI
errYanai, Katsunori; Hirai, Keiji; Kitano, Taisuke; Miyazawa, Haruhisa; Ito, Kiyonori; Ookawara, Susumu; Morishita, Yoshiyuki
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Approximation of Glomerular Filtration Rate after 1 Year Using Annual Medical Examination Data
err2024-07-18
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errOAAI
errHirai, Keiji; Kitano, Taisuke; Nakayama, Keiji; Morita, Fujiko; Satomura, Hajime; Tanaka, Takahisa; Yoshioka, Toru; Matsumoto, Masahiko; Kimura, Yuichi; Shikanai, Taku; Sasaki, Koji; Zhang, Zhiying; Ito, Kiyonori; Ookawara, Susumu; Morishita, Yoshiyuki
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Identification of Messenger RNA Signatures in Age-Dependent Renal Impairment
err2023-12-13
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errOAAI
errYanai, Katsunori; Kaneko, Shohei; Aomatsu, Akinori; Hirai, Keiji; Ookawara, Susumu; Morishita, Yoshiyuki
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Differences between Hepatic and Cerebral Regional Tissue Oxygen Saturation at the Onset of Intradialytic Hypotension
err2023-07-26
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errOAAI
errKaneko, Shohei; Ookawara, Susumu; Ito, Kiyonori; Minato, Saori; Mutsuyoshi, Yuko; Ueda, Yuichiro; Hirai, Keiji; Morishita, Yoshiyuki
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Effects of roxadustat on anemia, iron metabolism, and lipid metabolism in patients with non-dialysis chronic kidney disease
err2023-02-22
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errOAAI
errHirai, Keiji; Kaneko, Shohei; Minato, Saori; Yanai, Katsunori; Hirata, Momoko; Kitano, Taisuke; Ito, Kiyonori; Ueda, Yuichiro; Ookawara, Susumu; Morishita, Yoshiyuki
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Cerebral oxygenation and body mass index association with cognitive function in chronic kidney disease patients without dialysis: a longitudinal study
err2022-06-25
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errOAAI
errOokawara, Susumu; Ito, Kiyonori; Sasabuchi, Yusuke; Miyahara, Mayako; Miyashita, Tomoka; Takemi, Nana; Nagamine, Chieko; Nakahara, Shinobu; Horiuchi, Yuko; Inose, Nagisa; Shiina, Michiko; Murakoshi, Miho; Sanayama, Hidenori; Hirai, Keiji; Morishita, Yoshiyuki
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MicroRNA expression profiling in acute kidney injury
err2022-06-01
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PREAI
errAomatsu, Akinori; Kaneko, Shohei; Yanai, Katsunori; Ishii, Hiroki; Ito, Kiyonori; Hirai, Keiji; Ookawara, Susumu; Kobayashi, Yasuma; Sanui, Masamitsu; Morishita, Yoshiyuki
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MicroRNA Expression Profiling in Age-Dependent Renal Impairment
err2022-05-13
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errOAAI
errYanai, Katsunori; Kaneko, Shohei; Ishii, Hiroki; Aomatsu, Akinori; Hirai, Keiji; Ookawara, Susumu; Morishita, Yoshiyuki
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A case of asymmetric insulin-derived localised amyloid deposition associated with long-acting insulin analog administration
err2022-03-07
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PREAI
errHirai, Keiji; Imamura, Shigeki; Hirai, Aizan; Umemoto, Naoka; Oshiro, Hisashi; Kametani, Fuyuki; Katoh, Nagaaki; Yazaki, Masahide; Ookawara, Susumu; Morishita, Yoshiyuki
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Effects of Elobixibat on Constipation and Lipid Metabolism in Patients With Moderate to End-Stage Chronic Kidney Disease
err2022-01-17
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errOAAI
errMatsuyama, Momoko; Hirai, Keiji; Nonaka, Hiroaki; Ueda, Moeka; Morino, Junki; Kaneko, Shohei; Minato, Saori; Mutsuyoshi, Yuko; Yanai, Katsunori; Ishii, Hiroki; Kitano, Taisuke; Aomatsu, Akinori; Miyazawa, Haruhisa; Ito, Kiyonori; Ueda, Yuichiro; Ookawara, Susumu; Morishita, Yoshiyuki
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Change in Anemia by Carnitine Supplementation in Patients Undergoing Peritoneal Dialysis: A Retrospective Observational Study
err2021-11-05
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errOAAI
errKaneko, Shohei; Yanai, Katsunori; Kitano, Taisuke; Miyazawa, Haruhisa; Hirai, Keiji; Ookawara, Susumu; Morishita, Yoshiyuki
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MicroRNA Expression Profiling in Diabetic Kidney Disease
err2021-11-01
err17
errOAAI
errIshii, Hiroki; Kaneko, Shohei; Yanai, Katsunori; Aomatsu, Akinori; Hirai, Keiji; Ookawara, Susumu; Morishita, Yoshiyuki
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Effects of Roxadustat on the Anemia and Iron Metabolism of Patients Undergoing Peritoneal Dialysis
err2021-07-07
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errOAAI
errHirai, Keiji; Nonaka, Hiroaki; Ueda, Moeka; Morino, Junki; Kaneko, Shohei; Minato, Saori; Mutsuyoshi, Yuko; Yanai, Katsunori; Ishii, Hiroki; Matsuyama, Momoko; Kitano, Taisuke; Aomatsu, Akinori; Miyazawa, Haruhisa; Ito, Kiyonori; Ueda, Yuichiro; Ookawara, Susumu; Morishita, Yoshiyuki
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Effect of Evolocumab on Vulnerable Coronary Plaques: A Serial Coronary Computed Tomography Angiography Study
err2020-10-18
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errOAAI
errHirai, Keiji; Imamura, Shigeki; Hirai, Aizan; Ookawara, Susumu; Morishita, Yoshiyuki
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Serum Zinc Concentration Correlates With Ferritin Concentration in Patients Undergoing Peritoneal Dialysis: A Cross-Sectional Study
err2020-09-17
err5
errOAAI
errKaneko, Shohei; Morino, Junki; Minato, Saori; Yanai, Katsunori; Mutsuyoshi, Yuko; Ishii, Hiroki; Matsuyama, Momoko; Kitano, Taisuke; Shindo, Mitsutoshi; Aomatsu, Akinori; Miyazawa, Haruhisa; Ueda, Yuichiro; Ito, Kiyonori; Hirai, Keiji; Ookawara, Susumu; Morishita, Yoshiyuki
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Effects of Evolocumab on Carotid Intima-Media Thickness and Clinical Parameters in Patients Taking a Statin
err2020-07-16
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errOAAI
errHirai, Keiji; Imamura, Shigeki; Hirai, Aizan; Ookawara, Susumu; Morishita, Yoshiyuki
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