Naokazu Chiba

1.0k total citations
70 papers, 770 citations indexed

About

Naokazu Chiba is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Naokazu Chiba has authored 70 papers receiving a total of 770 indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Surgery, 29 papers in Oncology and 16 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Naokazu Chiba's work include Pancreatic and Hepatic Oncology Research (17 papers), Hepatocellular Carcinoma Treatment and Prognosis (13 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (10 papers). Naokazu Chiba is often cited by papers focused on Pancreatic and Hepatic Oncology Research (17 papers), Hepatocellular Carcinoma Treatment and Prognosis (13 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (10 papers). Naokazu Chiba collaborates with scholars based in Japan, United States and Spain. Naokazu Chiba's co-authors include Shyamala Maheswaran, Tetsu Hayashida, Elena F. Brachtel, Naohito Ohno, Y Adachi, Toshiro Yadomae, Noriko N. Miura, Shigeyuki Kawachi, Toru Sano and Fumiyuki Takahashi and has published in prestigious journals such as Proceedings of the National Academy of Sciences, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Naokazu Chiba

60 papers receiving 755 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Naokazu Chiba Japan	14	342	247	182	136	115	70	770
Yaping Wu China	17	251 0.7×	337 1.4×	101 0.6×	88 0.6×	83 0.7×	30	820
Fan Lian China	18	298 0.9×	119 0.5×	138 0.8×	99 0.7×	121 1.1×	39	999
Junfeng Wang China	16	413 1.2×	184 0.7×	80 0.4×	215 1.6×	73 0.6×	37	867
Yun Zhu China	22	680 2.0×	182 0.7×	86 0.5×	336 2.5×	113 1.0×	43	1.1k
Meng Lu China	16	481 1.4×	325 1.3×	80 0.4×	165 1.2×	117 1.0×	36	988
Benjamin Schmidt United States	14	181 0.5×	171 0.7×	153 0.8×	132 1.0×	214 1.9×	27	602
Xiaojun Zhu China	20	303 0.9×	227 0.9×	124 0.7×	184 1.4×	118 1.0×	70	905
Kan Chen China	18	226 0.7×	148 0.6×	80 0.4×	51 0.4×	128 1.1×	36	912
John Morgan United States	17	592 1.7×	202 0.8×	327 1.8×	189 1.4×	59 0.5×	31	1.2k
Guangping Liang China	19	326 1.0×	90 0.4×	98 0.5×	95 0.7×	42 0.4×	47	906

Countries citing papers authored by Naokazu Chiba

Since Specialization

Citations

This map shows the geographic impact of Naokazu Chiba's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Naokazu Chiba with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Naokazu Chiba more than expected).

Fields of papers citing papers by Naokazu Chiba

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Naokazu Chiba. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Naokazu Chiba. The network helps show where Naokazu Chiba may publish in the future.

Co-authorship network of co-authors of Naokazu Chiba

This figure shows the co-authorship network connecting the top 25 collaborators of Naokazu Chiba. A scholar is included among the top collaborators of Naokazu Chiba based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Naokazu Chiba. Naokazu Chiba is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Nakano, Yutaka, Yuta Abe, Yasushi Hasegawa, et al.. (2025). Safety and efficacy of pancreaticogastrostomy for hepatopancreatoduodenectomy compared to pancreaticojejunostomy for perihilar cholangiocarcinoma. World Journal of Surgical Oncology. 23(1). 97–97. 1 indexed citations

Iwama, Kazuto, Masashi Nakagawa, Takahiro Gunji, et al.. (2025). Predictive factors for disseminated intravascular coagulation following colorectal perforation. The American Journal of Surgery. 244. 116335–116335.

Chiba, Naokazu, et al.. (2024). New definition of borderline resectable colorectal liver metastasis based on prognostic outcomes. Langenbeck s Archives of Surgery. 409(1). 301–301. 1 indexed citations

Nakagawa, Masashi, Takahiro Gunji, Toru Sano, et al.. (2023). Risk factors for postoperative disseminated intravascular coagulation in surgical patients with non-occlusive mesenteric ischemia. International Journal of Colorectal Disease. 38(1). 146–146. 4 indexed citations

Tomita, Koichi, Masashi Nakagawa, Takahiro Gunji, et al.. (2021). A New Preoperative Risk Score for Predicting Postoperative Complications in Elderly Patients Undergoing Hepatectomy. World Journal of Surgery. 45(6). 1868–1876. 6 indexed citations

Chiba, Naokazu, Yuta Abe, Masashi Nakagawa, et al.. (2021). Efficacy of the Milan criteria as a prognostic factor in patients with colorectal liver metastases. Langenbeck s Archives of Surgery. 406(4). 1129–1138. 4 indexed citations

Hidaka, Eiji, Masashi Nakagawa, Takahiro Gunji, et al.. (2021). Prediction Model for Failure of Nonoperative Management of Uncomplicated Appendicitis in Adults. World Journal of Surgery. 45(10). 3041–3047. 4 indexed citations

Tomita, Koichi, Naokazu Chiba, Takahiro Gunji, et al.. (2021). Prognostic value of future liver remnant LU15 index of 99mTc-galactosyl serum albumin scintigraphy for predicting posthepatectomy liver failure. PLoS ONE. 16(2). e0247675–e0247675. 5 indexed citations

Tomita, Koichi, Masashi Nakagawa, Takahiro Gunji, et al.. (2021). New risk factors of postoperative complications in elective gastrointestinal surgery of elderly patients: a prospective cohort study. BMC Surgery. 21(1). 173–173. 5 indexed citations

10.

Tomita, Koichi, et al.. (2020). Prognostic Significance of Plasma Fibrinogen/Serum Albumin Ratio in the Postoperative Outcome of Pancreatic Ductal Adenocarcinoma. Anticancer Research. 40(12). 7017–7023. 5 indexed citations

11.

Tomita, Koichi, Masashi Nakagawa, Toru Sano, et al.. (2020). Right trisectionectomy for liver metastasis of granulosa cell tumor: a case report and literature review. SHILAP Revista de lepidopterología. 6(1). 125–125. 2 indexed citations

12.

Tomita, Koichi, Naokazu Chiba, Yuichi Nagakawa, et al.. (2019). [A Case of Early Rectal Cancer Recurring as Liver Metastasis Nine Months after ESD].. PubMed. 46(13). 2285–2287. 2 indexed citations

13.

Chiba, Naokazu, et al.. (2018). Surgical Technique of Pancreatic Parenchyma Transection-Delayed Approach (PPTDA) in Hepatopancreatoduodenectomy for Hilar Cholangiocarcinoma. Journal of Gastrointestinal Surgery. 23(3). 613–616. 6 indexed citations

14.

Chiba, Naokazu, et al.. (2017). Increased expression of HOXB9 in hepatocellular carcinoma predicts poor overall survival but a beneficial response to sorafenib. Oncology Reports. 37(4). 2270–2276. 12 indexed citations

15.

Chiba, Naokazu, Motohide Shimazu, Go Oshima, et al.. (2017). Predicting hepatic failure with a new diagnostic technique by preoperative liver scintigraphy and computed tomography: a pilot study in 123 patients undergoing liver resection. Patient Safety in Surgery. 11(1). 29–29. 6 indexed citations

16.

Matsushima‐Nishiwaki, Rie, Hidenori Toyoda, Eisuke Yasuda, et al.. (2016). Phosphorylated Heat Shock Protein 20 (HSPB6) Regulates Transforming Growth Factor-α-Induced Migration and Invasion of Hepatocellular Carcinoma Cells. PLoS ONE. 11(4). e0151907–e0151907. 30 indexed citations

17.

Takeuchi, Hironori, Hitoshi Iwamoto, Yuki Nakamura, et al.. (2015). Synergistic Effects of Calcineurin Inhibitors and Steroids on Steroid Sensitivity of Peripheral Blood Mononuclear Cells. PubMed. 7(2). 51–57. 7 indexed citations

18.

Chiba, Naokazu, Valentine Comaills, Bunsyo Shiotani, et al.. (2011). Homeobox B9 induces epithelial-to-mesenchymal transition-associated radioresistance by accelerating DNA damage responses. Proceedings of the National Academy of Sciences. 109(8). 2760–2765. 81 indexed citations

19.

Chiba, Naokazu, Masakazu Ueda, Hiromitsu Jinno, et al.. (2007). Development of Gene Vectors for Pinpoint Targeting to Human Hepatocytes by Cationically Modified Polymer Complexes. European Surgical Research. 39(1). 23–34. 16 indexed citations

20.

Chiba, Naokazu, et al.. (2002). A Case of Morgagni's Hernia Manifesting Symptoms after Laparotomy.. The Japanese Journal of Gastroenterological Surgery. 35(11). 1754–1758. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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