Ayumi Niwa

626 total citations
31 papers, 425 citations indexed

About

Ayumi Niwa is a scholar working on Molecular Biology, Oncology and Surgery. According to data from OpenAlex, Ayumi Niwa has authored 31 papers receiving a total of 425 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Molecular Biology, 8 papers in Oncology and 5 papers in Surgery. Recurrent topics in Ayumi Niwa's work include Antibiotic Use and Resistance (4 papers), Galectins and Cancer Biology (4 papers) and Bacterial Identification and Susceptibility Testing (3 papers). Ayumi Niwa is often cited by papers focused on Antibiotic Use and Resistance (4 papers), Galectins and Cancer Biology (4 papers) and Bacterial Identification and Susceptibility Testing (3 papers). Ayumi Niwa collaborates with scholars based in Japan and United States. Ayumi Niwa's co-authors include Hiroyuki Tomita, Akira Hara, Tomohiro Kanayama, Kei Noguchi, Yuichiro Hatano, Masayuki Niwa, Mikiko Matsuo, Hideshi Okada, Takahiro Kuroda and Takuji Tanaka and has published in prestigious journals such as PLoS ONE, American Journal Of Pathology and Cell Reports.

In The Last Decade

Ayumi Niwa

29 papers receiving 412 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ayumi Niwa Japan 11 156 143 77 72 45 31 425
Katherina Psarra Greece 12 136 0.9× 105 0.7× 80 1.0× 31 0.4× 37 0.8× 33 475
Thomas Czermak Germany 12 130 0.8× 109 0.8× 38 0.5× 60 0.8× 84 1.9× 18 395
Veronika Makó Hungary 13 308 2.0× 161 1.1× 51 0.7× 36 0.5× 49 1.1× 16 679
Julia B. Kral‐Pointner Austria 11 168 1.1× 107 0.7× 31 0.4× 62 0.9× 47 1.0× 18 419
Lina Zhang China 13 110 0.7× 209 1.5× 172 2.2× 30 0.4× 44 1.0× 36 538
Junya Fujimura Japan 14 59 0.4× 215 1.5× 50 0.6× 81 1.1× 43 1.0× 69 519
Joannes A. A. Reijers Netherlands 9 100 0.6× 94 0.7× 56 0.7× 80 1.1× 37 0.8× 16 315
Kathryn Hally New Zealand 11 148 0.9× 102 0.7× 32 0.4× 24 0.3× 62 1.4× 23 321
Manuela Sauter Germany 10 167 1.1× 72 0.5× 45 0.6× 77 1.1× 141 3.1× 19 477
Sara Mohamed Egypt 8 276 1.8× 87 0.6× 79 1.0× 52 0.7× 32 0.7× 39 566

Countries citing papers authored by Ayumi Niwa

Since Specialization
Citations

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

Fields of papers citing papers by Ayumi Niwa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ayumi Niwa

This figure shows the co-authorship network connecting the top 25 collaborators of Ayumi Niwa. A scholar is included among the top collaborators of Ayumi Niwa 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 Ayumi Niwa. Ayumi Niwa 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.
Kuroda, Takahiro, Akio Suzuki, Hideshi Okada, et al.. (2024). Endothelial Glycocalyx in the Peripheral Capillaries is Injured Under Oxaliplatin-Induced Neuropathy. Journal of Pain. 25(6). 104462–104462. 2 indexed citations
2.
Endo, Makoto, Hiroki Watanabe, Kazuhiro Sato, et al.. (2024). P2.07B.06 Segmentectomy for cIA1-2 Lung Cancer in the Lower Lobe with Solid-Predominant Opacity: Impact on Recurrence and Survival Rates. Journal of Thoracic Oncology. 19(10). S237–S237.
3.
Matsuo, Mikiko, Kei Noguchi, Ayumi Niwa, et al.. (2024). Time-course analysis of liver and serum galectin-3 in acute liver injury after alpha-galactosylceramide injection. PLoS ONE. 19(2). e0298284–e0298284. 3 indexed citations
4.
Niwa, Ayumi, Masahiro Hayashi, Ryosuke Kikuchi, et al.. (2024). First Case of Necrotizing Fasciitis and Septicemia Caused by <i>Pigmentibacter ruber</i>. Japanese Journal of Infectious Diseases. 77(4). 244–246. 1 indexed citations
5.
Miwa, Takao, Tatsunori Hanai, Kenji Imai, et al.. (2023). A case of A20 haploinsufficiency complicated by autoimmune hepatitis. Hepatology Research. 54(6). 606–611. 2 indexed citations
6.
Niwa, Ayumi, Takahide Taniguchi, Hiroyuki Tomita, et al.. (2023). Conditional ablation of heparan sulfate expression in stromal fibroblasts promotes tumor growth in vivo. PLoS ONE. 18(2). e0281820–e0281820. 1 indexed citations
7.
Niwa, Ayumi, et al.. (2022). Case Report: A Case of Gallbladder Carcinosarcoma With Osteoclast-like Multinucleated Giant Cells that Was Associated With RANK‐RANKL Signaling. Pathology & Oncology Research. 28. 1610134–1610134. 4 indexed citations
8.
Tomita, Hiroyuki, Kaori Tanaka, Akihiro Hirata, et al.. (2021). Inhibition of FGF10-ERK signal activation suppresses intraductal papillary neoplasm of the bile duct and its associated carcinomas. Cell Reports. 34(8). 108772–108772. 12 indexed citations
9.
Yamashita, Satoshi, Yuji O. Kamatari, Ryo Honda, et al.. (2021). Monomeric α-synuclein (αS) inhibits amyloidogenesis of human prion protein (hPrP) by forming a stable αS-hPrP hetero-dimer.. Prion. 15(1). 37–43. 2 indexed citations
10.
Kusudo, Tatsuya, et al.. (2021). CREG1 administration stimulates BAT thermogenesis and improves diet-induced obesity in mice. The Journal of Biochemistry. 171(1). 63–73. 3 indexed citations
11.
Hatano, Yuichiro, Ayumi Niwa, Tomohiro Kanayama, et al.. (2021). Clinically relevant umbilical cord inflammation identified based on CD15-associated vasculitis patterning. Placenta. 108. 39–46. 4 indexed citations
12.
Hara, Akira, Masayuki Niwa, Tomohiro Kanayama, et al.. (2020). Galectin-3: A Potential Prognostic and Diagnostic Marker for Heart Disease and Detection of Early Stage Pathology. Biomolecules. 10(9). 1277–1277. 64 indexed citations
13.
Tomita, Hiroyuki, Tomohiro Kanayama, Kei Noguchi, et al.. (2020). Specific Deletion of p16 with Retention of p19 Enhances the Development of Invasive Oral Squamous Cell Carcinoma. American Journal Of Pathology. 190(6). 1332–1342. 12 indexed citations
14.
Niwa, Takashi, Keiko Suzuki, Hirotoshi Ohta, et al.. (2019). Clinical impact of matrix‐assisted laser desorption ionization‐time of flight mass spectrometry combined with antimicrobial stewardship interventions in patients with bloodstream infections in a Japanese tertiary hospital. International Journal of Clinical Practice. 73(5). e13332–e13332. 17 indexed citations
15.
Niwa, Takashi, Keiko Suzuki, Hirotoshi Ohta, et al.. (2019). The impact of implementing an antifungal stewardship with monitoring of 1‐3, β‐D‐glucan values on antifungal consumption and clinical outcomes. Journal of Clinical Pharmacy and Therapeutics. 44(3). 454–462. 15 indexed citations
16.
Noguchi, Kei, Hiroyuki Tomita, Tomohiro Kanayama, et al.. (2019). Time-course analysis of cardiac and serum galectin-3 in viral myocarditis after an encephalomyocarditis virus inoculation. PLoS ONE. 14(1). e0210971–e0210971. 19 indexed citations
17.
Hara, Akira, Tomohiro Kanayama, Kei Noguchi, et al.. (2019). Treatment Strategies Based on Histological Targets against Invasive and Resistant Glioblastoma. Journal of Oncology. 2019. 1–10. 26 indexed citations
18.
Ibaraki, Kyoko, Makoto Mizuno, Hitomi Aoki, et al.. (2018). Biochemical and Morphological Characterization of a Guanine Nucleotide Exchange Factor ARHGEF9 in Mouse Tissues. ACTA HISTOCHEMICA ET CYTOCHEMICA. 51(3). 119–128. 5 indexed citations
19.
Niwa, Ayumi, Ryo Honda, K. Yamaguchi, et al.. (2018). A DISC1 point mutation promotes oligomerization and impairs information processing in a mouse model of schizophrenia. The Journal of Biochemistry. 165(4). 369–378. 7 indexed citations
20.
Hisamatsu, Kenji, Kei Noguchi, Hiroyuki Tomita, et al.. (2017). Distinctive crypt shape in a sessile serrated adenoma/polyp: Distribution of Ki67-, p16INK4a-, WNT5A-positive cells and intraepithelial lymphocytes. Oncology Reports. 38(2). 775–784. 5 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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2026