Osamu Handa

8.6k total citations · 1 hit paper
220 papers, 6.4k citations indexed

About

Osamu Handa is a scholar working on Surgery, Molecular Biology and Oncology. According to data from OpenAlex, Osamu Handa has authored 220 papers receiving a total of 6.4k indexed citations (citations by other indexed papers that have themselves been cited), including 77 papers in Surgery, 75 papers in Molecular Biology and 39 papers in Oncology. Recurrent topics in Osamu Handa's work include Helicobacter pylori-related gastroenterology studies (49 papers), Gastric Cancer Management and Outcomes (31 papers) and Heme Oxygenase-1 and Carbon Monoxide (20 papers). Osamu Handa is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (49 papers), Gastric Cancer Management and Outcomes (31 papers) and Heme Oxygenase-1 and Carbon Monoxide (20 papers). Osamu Handa collaborates with scholars based in Japan, United States and France. Osamu Handa's co-authors include Yuji Naito, Toshikazu Yoshikawa, Tomohisa Takagi, Satoshi Kokura, Takeshi Ishikawa, Kazuhiko Uchiyama, Katsura Mizushima, Kazuhiro Kamada, Norimasa Yoshida and Hiroshi Ichikawa and has published in prestigious journals such as SHILAP Revista de lepidopterología, The Journal of Immunology and Gastroenterology.

In The Last Decade

Osamu Handa

213 papers receiving 6.3k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Guidelines for the management of Helicobacter pylori infection in Japan: 2016 Revised Edition

2019 223 citations Osamu Handa, Katsuhiro Mabe et al. Helicobacter profile →

Peers

Osamu Handa

SURGE

PRM

ONCOL

IMMUN

Kazuhiko Uchiyama Japan

Takeshi Ishikawa Japan

Tomohisa Takagi Japan

Satoshi Kokura Japan

Soichiro Miura Japan

Hidekazu Suzuki Japan

Qing Gu China

Dennis A. Priebat United States

Andrzej S. Tarnawski United States

Xiaoting Wu China

Kazuhiko Uchiyama Japan

Osamu Handa

2.3k ×1.1

1.4k ×0.8

SURGE

1.1k ×1.0

PRM

971 ×1.0

ONCOL

580 ×0.7

IMMUN

Citations per year, relative to Osamu Handa Osamu Handa (= 1×) peers Kazuhiko Uchiyama

Countries citing papers authored by Osamu Handa

Since Specialization

Citations

This map shows the geographic impact of Osamu Handa'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 Osamu Handa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Osamu Handa more than expected).

Fields of papers citing papers by Osamu Handa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Osamu Handa. 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 Osamu Handa. The network helps show where Osamu Handa may publish in the future.

Co-authorship network of co-authors of Osamu Handa

This figure shows the co-authorship network connecting the top 25 collaborators of Osamu Handa. A scholar is included among the top collaborators of Osamu Handa 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 Osamu Handa. Osamu Handa 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

Ninomiya, T., et al.. (2025). The Relationship Between Bacterial Flora in Saliva and Esophageal Mucus and Endoscopic Severity in Patients with Eosinophilic Esophagitis. International Journal of Molecular Sciences. 26(7). 3026–3026. 1 indexed citations

Kodama, Masaaki, Osamu Handa, Mitsushige Sugimoto, et al.. (2025). Endoscopic risk factors to inform early detection of gastric cancer after Helicobacter pylori eradication: Meta‐analysis and systematic review. DEN Open. 5(1). e70086–e70086.

Handa, Osamu, et al.. (2024). Characteristics of Mucosa-Associated Microbiota in Ulcerative Colitis Patients with 5-Aminosalicylic Acid Intolerance. Biomedicines. 12(9). 2125–2125. 4 indexed citations

Matsumoto, Hiroshi, et al.. (2023). Serial Changes in Intestinal Stenotic Stiffness in Patients with Crohn’s Disease Treated with Biologics: A Pilot Study Using Ultrasound Shear Wave Elastography. The Turkish Journal of Gastroenterology. 34(10). 1006–1013. 4 indexed citations

Handa, Osamu, et al.. (2023). Reduction of butyric acid-producing bacteria in the ileal mucosa-associated microbiota is associated with the history of abdominal surgery in patients with Crohn’s disease. Redox Report. 28(1). 2241615–2241615. 5 indexed citations

Kawano, Seiji, Shiro Oka, Akiko Shiotani, et al.. (2022). Safety and efficacy of capsule endoscopy for patients with newly diagnosed Crohn’s disease: A multicenter retrospective study. Medicine. 101(50). e32424–e32424. 1 indexed citations

Murao, Takahisa, et al.. (2021). Evaluation of efficacy and safety of lubiprostone in patients with chronic constipation. Scandinavian Journal of Gastroenterology. 56(10). 1140–1145. 2 indexed citations

Handa, Osamu, et al.. (2020). Helicobacter pylori eradication therapy outcome according to clarithromycin susceptibility testing in Japan. Helicobacter. 25(4). e12698–e12698. 22 indexed citations

Majima, Atsushi, Osamu Handa, Yuji Naito, et al.. (2017). Early-Stage Gastric Cancer Can Be Found in Improved Atrophic Mucosa over Time from Successful <b><i>Helicobacter pylori</i></b> Eradication. Digestion. 95(3). 194–200. 23 indexed citations

10.

Murakami, Takaaki, Kazuhiro Kamada, Katsura Mizushima, et al.. (2017). Changes in Intestinal Motility and Gut Microbiota Composition in a Rat Stress Model. Digestion. 95(1). 55–60. 66 indexed citations

11.

Dohi, Osamu, Nobuaki Yagi, Yuriko Onozawa, et al.. (2016). Linked color imaging improves endoscopic diagnosis of active Helicobacter pylori infection. SHILAP Revista de lepidopterología. 4(7). E800–E805. 87 indexed citations

12.

Takagi, Tomohisa, Kazuhiro Katada, Katsura Mizushima, et al.. (2015). Rapamycin Improves Mortality Following Intestinal Ischemia-Reperfusion via the Inhibition of Remote Lung Inflammation in Mice. Digestion. 92(4). 211–219. 10 indexed citations

13.

Ishikawa, Takeshi, Satoshi Kokura, Katsura Mizushima, et al.. (2014). The inhibitory effect of heat treatment against epithelial-mesenchymal transition (EMT) in human pancreatic adenocarcinoma cell lines. Journal of Clinical Biochemistry and Nutrition. 55(1). 56–61. 14 indexed citations

14.

Handa, Osamu, Yuji Naito, Akifumi Fukui, Tatsushi Omatsu, & Toshikazu Yoshikawa. (2013). The impact of non-steroidal anti-inflammatory drugs on the small intestinal epithelium. Journal of Clinical Biochemistry and Nutrition. 54(1). 2–6. 40 indexed citations

15.

Hirata, Ikuhiro, Yuji Naito, Osamu Handa, et al.. (2009). Heat-Shock Protein 70-Overexpressing Gastric Epithelial Cells Are Resistant to Indomethacin-Induced Apoptosis. Digestion. 79(4). 243–250. 25 indexed citations

16.

Rui, Tao, Sulaiman Bharwani, Osamu Handa, et al.. (2008). Points of Control Exerted along the Macrophage-Endothelial Cell-Polymorphonuclear Neutrophil Axis by PECAM-1 in the Innate Immune Response of Acute Colonic Inflammation. The Journal of Immunology. 181(3). 2145–2154. 12 indexed citations

17.

Ishikawa, Takeshi, Satoshi Kokura, Hirokazu Oyamada, et al.. (2008). Effects of a Sequential Combination of Hyperthermia and Gemcitabine in the Treatment of Advanced Unresectable Pancreatic Cancer: A Retrospective Study. 24(4). 131–139. 5 indexed citations

18.

Adachi, Satoko, Satoshi Kokura, Takeshi Ishikawa, et al.. (2007). Effect of hyperthermia on the cytotoxicity of gemcitabine in cultured human pancreatic cell lines. Cancer Research. 67. 4582–4582. 1 indexed citations

19.

Naito, Yuji, Masaaki Kuroda, Kazuhiko Uchiyama, et al.. (2006). Inflammatory response of esophageal epithelium in combined-type esophagitis in rats: a transcriptome analysis. International Journal of Molecular Medicine. 18(5). 821–8. 7 indexed citations

20.

Naito, Yuji, Kazuhiro Katada, Tomohisa Takagi, et al.. (2006). Rosuvastatin, a new HMG-CoA reductase inhibitor, reduces the colonic inflammatory response in dextran sulfate sodium-induced colitis in mice. International Journal of Molecular Medicine. 17(6). 997–1004. 48 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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