Akira Ema

858 total citations
35 papers, 640 citations indexed

About

Akira Ema is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Molecular Biology. According to data from OpenAlex, Akira Ema has authored 35 papers receiving a total of 640 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Pulmonary and Respiratory Medicine, 16 papers in Surgery and 12 papers in Molecular Biology. Recurrent topics in Akira Ema's work include Gastric Cancer Management and Outcomes (21 papers), Gastrointestinal Tumor Research and Treatment (11 papers) and Metastasis and carcinoma case studies (10 papers). Akira Ema is often cited by papers focused on Gastric Cancer Management and Outcomes (21 papers), Gastrointestinal Tumor Research and Treatment (11 papers) and Metastasis and carcinoma case studies (10 papers). Akira Ema collaborates with scholars based in Japan and United States. Akira Ema's co-authors include Keishi Yamashita, Masahiko Watanabe, Kei Hosoda, Hiroaki Mieno, Hiromitsu Moriya, Hideki Ushiku, Mina Waraya, Masahiko Watanabe, Hiroshi Katoh and Natsuya Katada and has published in prestigious journals such as PLoS ONE, Scientific Reports and International Journal of Radiation Oncology*Biology*Physics.

In The Last Decade

Akira Ema

33 papers receiving 638 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Akira Ema Japan 18 287 282 237 165 110 35 640
Hideki Ushiku Japan 15 191 0.7× 228 0.8× 151 0.6× 159 1.0× 106 1.0× 39 478
Kotaro Hirashima Japan 14 270 0.9× 192 0.7× 296 1.2× 234 1.4× 113 1.0× 29 643
Guanghai Dai China 13 354 1.2× 168 0.6× 183 0.8× 359 2.2× 118 1.1× 34 670
S-E. Al-Batran Germany 12 326 1.1× 217 0.8× 175 0.7× 380 2.3× 66 0.6× 55 711
Akiko Kawano Nagatsuma Japan 12 387 1.3× 164 0.6× 153 0.6× 381 2.3× 92 0.8× 16 653
Yanying Shen China 14 156 0.5× 262 0.9× 104 0.4× 151 0.9× 185 1.7× 44 545
Da-zhi Xu China 9 293 1.0× 154 0.5× 163 0.7× 175 1.1× 76 0.7× 12 528
Qingsi He China 13 100 0.3× 247 0.9× 146 0.6× 97 0.6× 145 1.3× 34 509
Yawei Yuan China 14 190 0.7× 314 1.1× 126 0.5× 241 1.5× 218 2.0× 25 679

Countries citing papers authored by Akira Ema

Since Specialization
Citations

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

Fields of papers citing papers by Akira Ema

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Akira Ema

This figure shows the co-authorship network connecting the top 25 collaborators of Akira Ema. A scholar is included among the top collaborators of Akira Ema 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 Akira Ema. Akira Ema is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Harada, Hiroki, Kei Hosoda, Hiromitsu Moriya, et al.. (2019). Cancer-specific promoter DNA methylation of Cysteine dioxygenase type 1 (CDO1) gene as an important prognostic biomarker of gastric cancer. PLoS ONE. 14(4). e0214872–e0214872. 23 indexed citations
2.
Hosoda, Kei, Marie Washio, Hiroaki Mieno, et al.. (2019). Comparison of double-flap and OrVil techniques of laparoscopy-assisted proximal gastrectomy in preventing gastroesophageal reflux: a retrospective cohort study. Langenbeck s Archives of Surgery. 404(1). 81–91. 21 indexed citations
3.
Harada, Hiroki, Kei Hosoda, Hiromitsu Moriya, et al.. (2018). Carcinosarcoma of the esophagus: A report of 6 cases associated with zinc finger E‑box‑binding homeobox 1 expression. Oncology Letters. 17(1). 578–586. 6 indexed citations
4.
Nishizawa, Nobuyuki, Kei Hosoda, Hiromitsu Moriya, et al.. (2018). Patients’ preoperative background causes gastric stasis after laparoscopy‐assisted pylorus‐preserving gastrectomy. Asian Journal of Endoscopic Surgery. 11(4). 337–345. 5 indexed citations
5.
Washio, Marie, Keishi Yamashita, Kei Hosoda, et al.. (2017). Robust vascular invasion concurrent with intense EGFR immunostaining can predict recurrence in patients with stage IB node-negative gastric cancer. Surgery Today. 48(5). 478–485. 4 indexed citations
6.
Ushiku, Hideki, Keishi Yamashita, Akira Ema, et al.. (2017). DNA diagnosis of peritoneal fluid cytology test by CDO1 promoter DNA hypermethylation in gastric cancer. Gastric Cancer. 20(5). 784–792. 29 indexed citations
7.
Hosoda, Kei, Keishi Yamashita, Hiromitsu Moriya, et al.. (2017). Esophagogastric junction cancer successfully treated by laparoscopic proximal gastrectomy and lower esophagectomy with intrathoracic double‐flap technique: A case report. Asian Journal of Endoscopic Surgery. 11(2). 160–164. 9 indexed citations
8.
Hosoda, Kei, Keishi Yamashita, Hideki Ushiku, et al.. (2017). Prognostic relevance of FGFR2 expression in stage�II/III gastric cancer with curative resection and S‑1 chemotherapy. Oncology Letters. 15(2). 1853–1860. 17 indexed citations
9.
Hosoda, Kei, Keishi Yamashita, Hiromitsu Moriya, et al.. (2016). Laparoscopically Assisted Proximal Gastrectomy with Esophagogastrostomy Using a Novel “Open-Door” Technique. Journal of Gastrointestinal Surgery. 21(7). 1174–1180. 15 indexed citations
10.
Kikuchi, Mariko, Hiroshi Katoh, Mina Waraya, et al.. (2016). Epigenetic silencing of HOPX contributes to cancer aggressiveness in breast cancer. Cancer Letters. 384. 70–78. 28 indexed citations
11.
Yamashita, Keishi, Kei Hosoda, Akira Ema, & Masahiko Watanabe. (2016). Lymph node ratio as a novel and simple prognostic factor in advanced gastric cancer. European Journal of Surgical Oncology. 42(9). 1253–1260. 69 indexed citations
12.
Waraya, Mina, Keishi Yamashita, Mariko Kikuchi, et al.. (2016). Prognostic Significance of Promoter DNA Hypermethylation of cysteine dioxygenase 1 (CDO1) Gene in Primary Breast Cancer. PLoS ONE. 11(1). e0144862–e0144862. 29 indexed citations
13.
Nakamura, Kazunori, Keishi Yamashita, Hiromichi Sawaki, et al.. (2015). Aberrant methylation of GCNT2 is tightly related to lymph node metastasis of primary CRC.. PubMed. 35(3). 1411–21. 22 indexed citations
14.
Waraya, Mina, Keishi Yamashita, Akira Ema, et al.. (2015). Exclusive Association of p53 Mutation with Super-High Methylation of Tumor Suppressor Genes in the p53 Pathway in a Unique Gastric Cancer Phenotype. PLoS ONE. 10(10). e0139902–e0139902. 14 indexed citations
15.
Nishimiya, Hiroshi, Yoshimasa Kosaka, Keishi Yamashita, et al.. (2014). Prognostic significance of Ki-67 in chemotherapy-naive breast cancer patients with 10-year follow-up.. PubMed. 34(1). 259–68. 13 indexed citations
16.
Hosoda, Kei, Keishi Yamashita, Natsuya Katada, et al.. (2014). Prognostic impact of venous invasion in stage IB node-negative gastric cancer. Gastric Cancer. 18(2). 297–305. 34 indexed citations
17.
Ema, Akira, Keishi Yamashita, Hideki Ushiku, et al.. (2014). Immunohistochemical analysis of RTKs expression identified HER3 as a prognostic indicator of gastric cancer. Cancer Science. 105(12). 1591–1600. 19 indexed citations
18.
Nakamura, Takatoshi, Keishi Yamashita, Takeo Sato, et al.. (2014). Neoadjuvant Chemoradiation Therapy Using Concurrent S-1 and Irinotecan in Rectal Cancer: Impact on Long-Term Clinical Outcomes and Prognostic Factors. International Journal of Radiation Oncology*Biology*Physics. 89(3). 547–555. 30 indexed citations
19.
Ema, Akira, et al.. (2011). A CASE OF APPENDICITIS WITH OVA OF SCHISTOSOMIASIS JAPONICUM OBSERVED IN THE RESECTED SPECIMEN. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 72(7). 1773–1777.
20.
Nakagawa, Motohito, Makoto Takeda, Koji Okabayashi, et al.. (2009). STUDY OF INGUINAL HERNIA FOLLOWING RADICAL RETROPUBIC PROSTATECTOMY. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 70(2). 363–367. 2 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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