Tetsufumi Koga

680 total citations
37 papers, 552 citations indexed

About

Tetsufumi Koga is a scholar working on Pharmacology, Molecular Medicine and Surgery. According to data from OpenAlex, Tetsufumi Koga has authored 37 papers receiving a total of 552 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Pharmacology, 12 papers in Molecular Medicine and 11 papers in Surgery. Recurrent topics in Tetsufumi Koga's work include Antibiotics Pharmacokinetics and Efficacy (14 papers), Antibiotic Resistance in Bacteria (12 papers) and Helicobacter pylori-related gastroenterology studies (9 papers). Tetsufumi Koga is often cited by papers focused on Antibiotics Pharmacokinetics and Efficacy (14 papers), Antibiotic Resistance in Bacteria (12 papers) and Helicobacter pylori-related gastroenterology studies (9 papers). Tetsufumi Koga collaborates with scholars based in Japan, United States and Germany. Tetsufumi Koga's co-authors include Hisataka Yasuda, Takeshi Yokota, Takashi Fukuoka, Masayo Kakuta, Yukio Utsui, Takashi Hirota, Naotoshi Yamamura, Hiroshi Yasuda, Nobuhisa Masuda and Hiroshi Yasuda and has published in prestigious journals such as Methods in enzymology on CD-ROM/Methods in enzymology, Antimicrobial Agents and Chemotherapy and Journal of Antimicrobial Chemotherapy.

In The Last Decade

Tetsufumi Koga

35 papers receiving 516 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Tetsufumi Koga Japan 11 230 162 158 134 112 37 552
Dena M. Hensey United States 9 140 0.6× 141 0.9× 126 0.8× 233 1.7× 239 2.1× 9 574
Axel Dalhoff Germany 13 201 0.9× 348 2.1× 116 0.7× 250 1.9× 248 2.2× 24 780
S L Haskell United States 8 143 0.6× 168 1.0× 128 0.8× 221 1.6× 228 2.0× 8 569
H.‐G. Sonntag Germany 17 131 0.6× 60 0.4× 190 1.2× 126 0.9× 156 1.4× 35 705
J. F. Desnottes France 14 186 0.8× 153 0.9× 104 0.7× 186 1.4× 144 1.3× 27 572
MARGARET R. ANDERSON United States 5 105 0.5× 168 1.0× 115 0.7× 189 1.4× 206 1.8× 6 537
L. Nicola Italy 14 171 0.7× 121 0.7× 100 0.6× 103 0.8× 97 0.9× 28 537
J. A. Faiella United States 8 75 0.3× 161 1.0× 146 0.9× 208 1.6× 227 2.0× 8 529
J. Mohler France 13 103 0.4× 147 0.9× 133 0.8× 158 1.2× 153 1.4× 31 539
W. TOSCH Switzerland 10 274 1.2× 237 1.5× 117 0.7× 165 1.2× 100 0.9× 17 669

Countries citing papers authored by Tetsufumi Koga

Since Specialization
Citations

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

Fields of papers citing papers by Tetsufumi Koga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tetsufumi Koga

This figure shows the co-authorship network connecting the top 25 collaborators of Tetsufumi Koga. A scholar is included among the top collaborators of Tetsufumi Koga 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 Tetsufumi Koga. Tetsufumi Koga 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.
Tokumitsu, Akane, Takeshi Masuda, Yuko Yamamoto, et al.. (2019). Muraminomicins, novel ester derivatives: in vitro and in vivo antistaphylococcal activity. The Journal of Antibiotics. 72(12). 956–969. 2 indexed citations
2.
Koga, Tetsufumi, et al.. (2017). Spontaneous Infection Caused by Streptococcus agalactiae in KK-Ay Mice.. PubMed. 67(5). 416–419. 3 indexed citations
3.
Koga, Tetsufumi, et al.. (2015). Antimicrobial resistance in Campylobacter coli and Campylobacter jejuni in cynomolgus monkeys (Macaca fascicularis) and eradication regimens. Journal of Microbiology Immunology and Infection. 50(1). 75–82. 13 indexed citations
4.
Murai, Takahiro, Masayo Kakuta, Hatsumi Nasu, et al.. (2013). Absorption, Elimination, and Metabolism of CS-1036, a Novel α-Amylase Inhibitor in Rats and Monkeys, and the Relationship between Gastrointestinal Distribution and Suppression of Glucose Absorption. Drug Metabolism and Disposition. 41(4). 878–887. 3 indexed citations
5.
Sugihara, Kiyoshi, Yoko Matsushita, Naotoshi Yamamura, et al.. (2010). In Vivo Pharmacodynamic Activity of Tomopenem (formerly CS-023) against Pseudomonas aeruginosa and Methicillin-Resistant Staphylococcus aureus in a Murine Thigh Infection Model. Antimicrobial Agents and Chemotherapy. 54(12). 5298–5302. 20 indexed citations
6.
Koga, Tetsufumi, et al.. (2008). Potent In Vitro Activity of Tomopenem (CS-023) against Methicillin-Resistant Staphylococcus aureus and Pseudomonas aeruginosa. Antimicrobial Agents and Chemotherapy. 52(8). 2849–2854. 22 indexed citations
7.
Koga, Tetsufumi, et al.. (2008). [In-vitro activity of panipenem against clinical isolates in 2006].. PubMed. 61(1). 1–17. 1 indexed citations
8.
Koga, Tetsufumi, Takashi Fukuoka, Norio Doi, et al.. (2004). Activity of capuramycin analogues against Mycobacterium tuberculosis, Mycobacterium avium and Mycobacterium intracellularein vitro and in vivo. Journal of Antimicrobial Chemotherapy. 54(4). 755–760. 76 indexed citations
9.
Koga, Tetsufumi, et al.. (2003). Essential role of magnesium ion in water for colonization of Helicobacter pylori in 2-week-old miniature pigs. Microbiological Research. 158(1). 69–75. 4 indexed citations
10.
Koga, Tetsufumi, et al.. (2002). Experimental Helicobacter pylori gastric infection in miniature pigs. Journal of Medical Microbiology. 51(3). 238–246. 10 indexed citations
11.
Koga, Tetsufumi, et al.. (2002). Contribution of ferrous iron to maintenance of the gastric colonization of Helicobacter pylori in miniature pigs. Microbiological Research. 157(4). 323–330. 5 indexed citations
12.
Yasuda, Hiroshi, Tetsufumi Koga, & Takashi Fukuoka. (1999). [43] In vitro and in Vivo models of bacterial biofilms. Methods in enzymology on CD-ROM/Methods in enzymology. 310. 577–595. 23 indexed citations
13.
Koga, Tetsufumi, et al.. (1998). Delayed Healing of Chronic Gastric Ulcer after Helicobacter pylori Infection in Mice. Journal of Pharmacy and Pharmacology. 50(8). 943–948. 10 indexed citations
14.
Koga, Tetsufumi, et al.. (1998). Lipid lowering effects of pravastatin in common marmosets.. PubMed. 48(2). 154–60. 6 indexed citations
15.
Ohya, Satoshi, Yukio Utsui, Hisanori Domon, et al.. (1997). In vitro and in vivo antibacterial activities of CS-834, a novel oral carbapenem. Antimicrobial Agents and Chemotherapy. 41(12). 2652–2663. 22 indexed citations
16.
Koga, Tetsufumi, et al.. (1996). In-vitro and in-vivo antibacterial activity of plaunotol, a cytoprotective antiulcer agent, against Helicobacter pylori. Journal of Antimicrobial Chemotherapy. 37(5). 919–929. 29 indexed citations
17.
Koga, Tetsufumi, et al.. (1996). Bactericidal effect of plaunotol, a cytoprotective antiulcer agent, against Helicobacter pylori. Journal of Antimicrobial Chemotherapy. 38(3). 387–397. 9 indexed citations
18.
Koga, Tetsufumi, et al.. (1991). β-Lactamase produced by a highly β-lactam-resistant strain of Barteroides fragilis: an obstacle to the chemotherapy of experimental mixed infections. Journal of Antimicrobial Chemotherapy. 28(4). 537–546. 8 indexed citations
19.
Abe, Satoshi, Takehiko Saito, Tetsufumi Koga, et al.. (1990). Cloning and expression of a pili gene of Corynebacterium renale in Escherichia coli.. The Japanese Journal of Veterinary Science. 52(1). 11–18. 1 indexed citations
20.
Oda, Keiji, Akira Kawakami, Tetsufumi Koga, et al.. (1989). [Clinical study of cefpodoxime proxetil dry syrup for skin and soft tissue infections in the field of pediatrics].. PubMed. 42(7). 1685–704. 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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