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Kazunori Nakaoka · SciRah

Researcher profile · Semantic Scholar

Kazunori Nakaoka

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Kazunori Nakaoka — researcher profile on SciRah

h-index: 13
Works: 57
Citations: 458

Most-cited papers

Current Status of the Diagnosis of Early-Stage Pancreatic Ductal Adenocarcinoma
Kazunori Nakaoka, E. Ohno, Naoto Kawabe, T. Kuzuya +11 more
2023Diagnostics50 citations Open access
Semantic Scholar
Early Changes in Alpha-Fetoprotein Are a Useful Predictor of Efficacy of Atezolizumab plus Bevacizumab Treatment in Patients with Advanced Hepatocellular Carcinoma
T. Kuzuya, Naoto Kawabe, Senju Hashimoto, R. Miyahara +11 more
2021Oncology40 citations
Semantic Scholar
Vitamin E reduces liver stiffness in nonalcoholic fatty liver disease.
Aiko Fukui, Naoto Kawabe, Senju Hashimoto, Michihito Murao +9 more
2015World Journal of Hepatology40 citations Open access
Semantic Scholar
Factors correlating with acoustic radiation force impulse elastography in chronic hepatitis C.
T. Nishikawa, Senju Hashimoto, Naoto Kawabe, Masao Harata +12 more
2014World Journal of Gastroenterology36 citations Open access
Semantic Scholar
Changes in intestinal bacteria and imbalances of metabolites induced in the intestines of pancreatic ductal adenocarcinoma patients in a Japanese population: a preliminary result
Senju Hashimoto, T. Tochio, K. Funasaka, K. Funahashi +12 more
2022Scandinavian Journal of Gastroenterology31 citations
Semantic Scholar
The Role of Endoscopic Ultrasound in the Diagnosis of Gallbladder Lesions
Senju Hashimoto, Kazunori Nakaoka, Naoto Kawabe, T. Kuzuya +6 more
2021Diagnostics25 citations Open access
Semantic Scholar
Role of transabdominal ultrasonography in the diagnosis of pancreatic cystic lesions
Senju Hashimoto, Y. Hirooka, Naoto Kawabe, Kazunori Nakaoka +1 more
2019Journal of medical ultrasonics18 citations
Semantic Scholar
PNPLA3 I148M associations with liver carcinogenesis in Japanese chronic hepatitis C patients
Kazunori Nakaoka, Senju Hashimoto, Naoto Kawabe, Yoshifumi Nitta +12 more
2015SpringerPlus18 citations Open access
Semantic Scholar
Efficacy of 1-Kestose Supplementation in Patients with Pancreatic Ductal Adenocarcinoma: A Randomized Controlled Pilot Study
Kazunori Nakaoka, Eizaburo Ohno, Kento Kuramitsu, T. Kuzuya +8 more
2024Nutrients17 citations Open access
Semantic Scholar
Initial Experience of Atezolizumab Plus Bevacizumab for Advanced Hepatocellular Carcinoma in Clinical Practice.
T. Kuzuya, Naoto Kawabe, Senju Hashimoto, R. Miyahara +9 more
2021Cancer Diagnosis & Prognosis17 citations Open access
Semantic Scholar
The clinical features of patients with a Y93H variant of hepatitis C virus detected by a PCR invader assay
Toshiki Kan, Senju Hashimoto, Naoto Kawabe, Michihito Murao +8 more
2015Journal of gastroenterology16 citations Open access
Semantic Scholar
Early Changes in Alpha-Fetoprotein and Des-γ-Carboxy Prothrombin Are Useful Predictors of Antitumor Response to Durvalumab Plus Tremelimumab Therapy for Advanced Hepatocellular Carcinoma
T. Kuzuya, Naoto Kawabe, Hisanori Muto, Yuryo Wada +9 more
2024Current Oncology14 citations Open access
Semantic Scholar
HLA‐DQ gene polymorphisms are associated with hepatocellular carcinoma and hepatitis B surface antigen in chronic hepatitis B virus infection
Yuka Ochi, Senju Hashimoto, Naoto Kawabe, Michihito Murao +12 more
2017Hepatology Research13 citations
Semantic Scholar
Current status of endoscopic ultrasound in the diagnosis of intraductal papillary mucinous neoplasms
Eizaburo Ohno, T. Kuzuya, Naoto Kawabe, Kazunori Nakaoka +6 more
2024DEN Open12 citations Open access
Semantic Scholar
Current status of the diagnosis of chronic pancreatitis by ultrasonographic elastography
Kazunori Nakaoka, Senju Hashimoto, R. Miyahara, H. Kawashima +5 more
2021The Korean Journal of Internal Medicine12 citations Open access
Semantic Scholar
Evaluation of a 12-mm diameter covered self-expandable end bare metal stent for malignant biliary obstruction
Kazunori Nakaoka, Senju Hashimoto, Naoto Kawabe, Takuji Nakano +9 more
2018Endoscopy International Open12 citations Open access
Semantic Scholar
Mortality and cancer risk in patients with chronic pancreatitis in japan: insights into the importance of surveillance for pancreatic cancer
Ryotaro Matsumoto, Kazuhiro Kikuta, Tetsuya Takikawa, Yousuke Nakai +51 more
2025Journal of gastroenterology11 citations Open access
Semantic Scholar
Nationwide epidemiological survey of acute pancreatitis in Japan, 2021: the impact of the COVID-19 pandemic and revised clinical guidelines
Yuichi Tanaka, Atsushi Masamune, Ryotaro Matsumoto, Tetsuya Takikawa +278 more
2025Journal of gastroenterology8 citations Open access
Semantic Scholar
Transcatheter arterial infusion chemotherapy with cisplatin in combination with transcatheter arterial chemoembolization decreases intrahepatic distant recurrence of unresectable hepatocellular carcinoma
Naoto Kawabe, Senju Hashimoto, Takuji Nakano, Kazunori Nakaoka +2 more
2021JGH Open8 citations Open access
Semantic Scholar
Changes of shear-wave velocity by interferon-based therapy in chronic hepatitis C.
Keisuke Osakabe, N. Ichino, T. Nishikawa, H. Sugiyama +15 more
2015World Journal of Gastroenterology7 citations Open access
Semantic Scholar
Contributions of endoscopic ultrasonography-guided tissue acquisition (EUS-TA) to the diagnostics of biliary stricture and gallbladder lesions
Eizaburo Ohno, T. Kuzuya, Naoto Kawabe, Kazunori Nakaoka +5 more
2024Journal of medical ultrasonics6 citations
Semantic Scholar
Characteristics and Prognosis of Patients with Advanced Hepatocellular Carcinoma Treated with Atezolizumab/Bevacizumab Combination Therapy Who Achieved Complete Response
T. Kuzuya, Naoto Kawabe, Hisanori Muto, Yoshihiko Tachi +11 more
2024Current Oncology5 citations
Semantic Scholar
Use of contrast-enhanced harmonic endoscopic ultrasonography for the diagnosis of pancreatic cystic lesions
E. Ohno, T. Kuzuya, Naoto Kawabe, Kazunori Nakaoka +5 more
2023Journal of medical ultrasonics5 citations Open access
Semantic Scholar
Increase in albumin by daclatasvir/asunaprevir therapy is correlated with decrease in aspartate transaminase
Toshiki Kan, Senju Hashimoto, Naoto Kawabe, Takuji Nakano +2 more
2017Journal of Translational Internal Medicine5 citations Open access
Semantic Scholar
Probe‐based confocal laser endomicroscopy for the diagnosis of pancreatic ductal structures
Kazunori Nakaoka, Senju Hashimoto, Naoto Kawabe, Takuji Nakano +6 more
2020Journal of Gastroenterology and Hepatology4 citations
Semantic Scholar
Additional BCAA-enriched nutrient mixture improves the nutritional condition in cirrhotic patients with hypoalbuminemia despite treatment with regular BCAA granules: A pilot study.
Aiko Fukui, Naoto Kawabe, Senju Hashimoto, Michihito Murao +8 more
2015The Turkish Journal of Gastroenterology4 citations Open access
Semantic Scholar
Biomarker-Based Responder Selection and Early Prediction of Treatment Response in Hepatocellular Carcinoma: Dynamic Changes in Alpha-Fetoprotein and Des-Gamma-Carboxy Prothrombin During Atezolizumab Plus Bevacizumab Therapy
T. Kuzuya, Hisanori Muto, Yoshihiko Tachi, Mariko Kobayashi +12 more
2025Cancers3 citations
Semantic Scholar
A rare case of pancreatic neuroendocrine neoplasm causing Cushing’s syndrome
Kazunori Nakaoka, Senju Hashimoto, Naoto Kawabe, T. Kuzuya +9 more
2022Clinical Journal of Gastroenterology3 citations
Semantic Scholar
Endoscopic imaging in inflammatory bowel disease
M. Nagasaka, Y. Nakagawa, T. Kamano, Takafumi Omori +6 more
2022Journal of medical ultrasonics3 citations
Semantic Scholar
A rare case of inflammatory polyp in the common bile duct with cholangitis
Kazunori Nakaoka, Senju Hashimoto, Naoto Kawabe, T. Kuzuya +13 more
2022DEN Open3 citations Open access
Semantic Scholar
A case of multiple hepatic MALT lymphoma with cirrhosis related to hepatitis C virus
Yuka Takagawa, Naoto Kawabe, Senju Hashimoto, Masao Harata +9 more
20143 citations Open access
Semantic Scholar
Nationwide epidemiological survey of autoimmune pancreatitis in Japan in 2021
Atsushi Masamune, T. Sano, Tetsuya Takikawa, Ryotaro Matsumoto +195 more
2026Journal of gastroenterology2 citations
Semantic Scholar
Disease-specific gut microbial signatures generate model-derived cancer probability scores through targeted fecal qPCR profiling.
T. Fujii, Eizaburo Ohno, Naoko Nakano, Kazunori Nakaoka +5 more
2026Bioscience, biotechnology and biochemistry2 citations
Semantic Scholar
Contrast-enhanced ultrasound imaging characteristics of intrahepatic cholangiocarcinoma with actionable gene variants detected by comprehensive cancer gene panel testing
Kazunori Nakaoka, Eizaburo Ohno, Seiji Yamada, T. Kuzuya +7 more
2025International Journal of Clinical Oncology2 citations
Semantic Scholar
Alterations in the gut microbiota in patients with long-term follow-up after pancreaticoduodenectomy and their association with postoperative fatty liver: A pilot study.
Yuichiro Uchida, T. Fujii, Hideaki Takahashi, Kazunori Nakaoka +6 more
2024Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]2 citations Open access
Semantic Scholar
The Central Role of Liver Function at Treatment Initiation and Its Preservation at Progression for Post-Progression Survival After Atezolizumab Plus Bevacizumab in Advanced Hepatocellular Carcinoma
Mizuki Ariga, T. Kuzuya, Hisanori Muto, Yoshihiko Tachi +12 more
2026Biomedicines1 citations
Semantic Scholar
Efficacy of Second-line Lenvatinib for Hepatocellular Carcinoma After Early Progression on Atezolizumab–Bevacizumab
Hisanori Muto, T. Kuzuya, Yoshihiko Tachi, Y. Nagano +19 more
2026Anticancer Research1 citations
Semantic Scholar
The role of contrast-enhanced endoscopic ultrasound for biliary diseases
Senju Hashimoto, E. Ohno, Satoshi Yamamoto, Kazunori Nakaoka +1 more
2023Journal of medical ultrasonics1 citations
Semantic Scholar
Transabdominal ultrasonographic diagnosis of relatively rare pancreatic neoplasms
Senju Hashimoto, Kazunori Nakaoka, Hiroyuki Tanaka, T. Kuzuya +6 more
2022Journal of medical ultrasonics1 citations
Semantic Scholar
Clinical Utility and Genomic Landscape of Comprehensive Genomic Profiling in Biliary Tract Tumors: A Single-Center Real-World Study
Kazunori Nakaoka, Hiroyuki Kato, Seiji Yamada, Fumino Kato +10 more
2026Cancers0 citations Open access
Semantic Scholar
Efficacy of Second-Line Lenvatinib After Atezolizumab–Bevacizumab and Durvalumab–Tremelimumab in Unresectable Hepatocellular Carcinoma: Association with Prior Immunotherapy Response
T. Kuzuya, Hisanori Muto, Yoshihiko Tachi, Gakushi Komura +7 more
2026Cancers0 citations Open access
Semantic Scholar
Diagnostic Pathways and Outcomes of First-Line Atezolizumab plus Bevacizumab in Patients with Locoregional Therapy-Ineligible Hepatocellular Carcinoma at Initial Diagnosis.
Gakushi Komura, T. Kuzuya, Hisanori Muto, Yoshihiko Tachi +12 more
2026Oncology0 citations
Semantic Scholar
Pathological complete response after nanoliposomal irinotecan plus fluorouracil/leucovorin and conversion surgery in borderline resectable pancreatic head adenocarcinoma: a case report
Kazunori Nakaoka, Aki Nishijima, Yuki Asai, Gakushi Koumura +11 more
2026International Cancer Conference Journal0 citations Open access
Semantic Scholar
Difficult-to-Treat Hepatic Inflammatory Pseudotumor caused by Extrahepatic Inflammation Secondary to Peritonitis: A Case Report Highlighting the Therapeutic Potential of Nonsteroidal Anti-Inflammatory Drugs
Takeshi Ukai, T. Kuzuya, Gakushi Komura, Takuji Nakano +9 more
2026Kanzo0 citations Open access
Semantic Scholar
Contributions of endoscopic ultrasonography-guided tissue acquisition (EUS-TA) to the diagnostics of biliary stricture and gallbladder lesions
Eizaburo Ohno, T. Kuzuya, Naoto Kawabe, Kazunori Nakaoka +5 more
2025Choonpa Igaku0 citations
Semantic Scholar
Impact of Continuous Nutritional Counseling on Liver Function and Body Composition in Patients with MASLD/MASH
Shiho Asai, Naoto Kawabe, Akemi Ito, T. Kuzuya +8 more
2025Kanzo0 citations Open access
Semantic Scholar
CORRELATION BETWEEN GENOMIC FINDINGS AND CLINICOPATHOLOGICAL AND ULTRASONOGRAPHIC FINDINGS OF BILIARY TRACT CANCER
Kazunori Nakaoka, Eizaburo Ohno, Gakushi Komura, Takuji Nakano +3 more
2025Ultrasound in Medicine & Biology0 citations
Semantic Scholar
Clinical Outcomes of Reduced‐Dose Cabozantinib as Third‐ or Later‐Line Therapy After Immune Checkpoint Inhibitors in Advanced Hepatocellular Carcinoma: A Real‐World Study
T. Kuzuya, Hisanori Muto, Yoshihiko Tachi, Mizuki Ariga +10 more
2025Hepatology Research0 citations Open access
Semantic Scholar
比較的稀な膵腫瘍の経腹的超音波診断
Senju Hashimoto, Kazunori Nakaoka, Hiroyuki Tanaka, Teiji Kuzuya +6 more
2024Choonpa Igaku0 citations
Semantic Scholar
A case of gallbladder torsion in which contrast-enhanced ultrasonography was useful
Yutaka Sasaki, Eizaburo Ohno, H. Sugiyama, Keisuke Osakabe +6 more
2024Choonpa Igaku0 citations
Semantic Scholar

Frequent co-authors

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Takuji Nakano×32
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Takuji Nakano — researcher profile on SciRah
Senju Hashimoto×31
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Senju Hashimoto — researcher profile on SciRah
Naoto Kawabe×29
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Naoto Kawabe — researcher profile on SciRah
T. Kuzuya×27
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T. Kuzuya — researcher profile on SciRah

Yoshiki Hirooka

×25

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Yoshiki Hirooka — researcher profile on SciRah

Hiroyuki Tanaka×24

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Hiroyuki Tanaka — researcher profile on SciRah

R. Miyahara×21

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R. Miyahara — researcher profile on SciRah

Eizaburo Ohno×21

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Eizaburo Ohno — researcher profile on SciRah

K. Funasaka×18

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K. Funasaka — researcher profile on SciRah

K. Yoshioka×13

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K. Yoshioka — researcher profile on SciRah

Toshiki Kan×10

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Toshiki Kan — researcher profile on SciRah

Gakushi Komura×10

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Gakushi Komura — researcher profile on SciRah