Koichi Ohno

5.9k citations

259 papers · 4.3k indexed · h-index 33

Impact in

Small Animals top 0.2%
- Infectious Diseases and Mycology
- Animal health and immunology
Equine top 1%

Papers in

Equine 10
Small Animals 35
- Infectious Diseases and Mycology 26

Co-authors: Hajime Tsujimoto Yasuhito Fujino Yuko Goto‐Koshino Masashi Takahashi Ko Nakashima Kenjiro FUKUSHIMA Kenichi Masuda Hisashi INOKUMA
Journals: Veterinary Immunology and Immunopathology (38 papers)The Veterinary Journal (17 papers)Journal of Veterinary Medical Science (108 papers)American Journal of Veterinary Research (12 papers)Journal of Veterinary Internal Medicine (11 papers)
Partner nations: Japan United States France

In The Last Decade

Koichi Ohno

255 papers receiving 4.1k citations

Peers

Countries citing papers authored by Koichi Ohno

Since Specialization

Citations

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

Fields of papers citing papers by Koichi Ohno

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Koichi Ohno, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Koichi Ohno Line = papers co-authored together Koichi Ohno links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Magnetic Resonance Cholangiopancreatography for Cholangiopancreatic Duct Imaging in Dogs Veterinary Radiology & Ultrasound ·Reina Fujiwara, Daiane Rodrigues Siqueira Rios, Masahiro Yamasaki, Koichi Ohno	2025	0
2	Assessment of changes in blood pancreatic lipase activities using FDC‐v‐LIP in dogs that underwent various surgical procedures Journal of Veterinary Emergency and Critical Care ·Tuulikki Tornberg, Kohei Saeki, Nozomu Yokoyama, Koichi Ohno, Ryohei Nishimura	2022	1
3	Transmission ofHelicobacter pyloribetween a human and two dogs: A case report Helicobacter ·黃宏德, Yasuo Matsubara, Hideyuki Kanemoto, Hitomi Mimuro, Kazuyuki Uchida, James Chambers, Masaya Tsuboi, Koichi Ohno, Kenjiro FUKUSHIMA, Naoya Kato, Hiroshi Yotsuyanagi, Hajime Tsujimoto	2021	19
4	Distribution of regulatory T cells in inflammatory colorectal polyps of miniature dachshunds Veterinary Immunology and Immunopathology ·Keisuke Konishi, Hirotaka Igarashi, Shingo Maeda, 厉运超, Empresa y Medio Ambie Desconocido, Shukri Dualeh, Kazuyuki Uchida, Daiji Endoh, Koichi Ohno	2019	3
5	Histopathologic Features of Colorectal Adenoma and Adenocarcinoma Developing Within Inflammatory Polyps in Miniature Dachshunds Veterinary Pathology ·Tsubasa Saito, James Chambers, Ko Nakashima, 厉运超, Koichi Ohno, Hajime Tsujimoto, Kazuyuki Uchida, Hiroyuki Nakayama	2018	15
6	Effects of serum amyloid A on matrix metalloproteinase-9 production in feline lymphoma-derived cell lines Veterinary Immunology and Immunopathology ·Shukri Dualeh, Koichi Ohno, Yuko Goto‐Koshino, Hajime Tsujimoto	2017	2
7	American Cocker Spaniel Chronic Hepatitis in Japan Journal of Veterinary Internal Medicine ·Hideyuki Kanemoto, Manabu Sakai, Y. Sakamoto, Bart Spee, T.S.G.A.M. van den Ingh, Elias Macedo de Oliveira, Koichi Ohno, Jan Jaap Rothuizen	2013	14
8	Regulations of ABCB1 and ABCG2 expression through MAPK pathways in acute lymphoblastic leukemia cell lines. PubMed ·Hirotaka Tomiyasu, Manabu Watanabe, Kanji Sugita, Yuko Goto‐Koshino, Yasuhito Fujino, Koichi Ohno, Sumio Sugano, Hajime Tsujimoto	2013	38
9	Regulation of expression ofABCB1andLRPgenes by mitogen-activated protein kinase/extracellular signal-regulated kinase pathway and its role in generation of side population cells in canine lymphoma cell lines Leukemia & lymphoma ·Hirotaka Tomiyasu, Manabu Watanabe, Yuko Goto‐Koshino, Yasuhito Fujino, Koichi Ohno, Sumio Sugano, Hajime Tsujimoto	2012	20
10	Decreased Immunoglobulin A Concentrations in Feces, Duodenum, and Peripheral Blood Mononuclear Cells of Dogs with Inflammatory Bowel Disease Journal of Veterinary Internal Medicine ·Shingo Maeda, Koichi Ohno, Kazuyuki Uchida, Ko Nakashima, Kenjiro FUKUSHIMA, Atsushi Tsukamoto, Motohiro Nakajima, Yoshihisa Fujino, Hajime Tsujimoto	2012	42
11	Increased expression of fractalkine and its receptor CX3CR1 in canine inflammatory bowel disease and their possible role in recruitment of intraepithelial lymphocytes Veterinary Immunology and Immunopathology ·Shingo Maeda, Koichi Ohno, Kenji Nakamura, Kazuyuki Uchida, Ko Nakashima, Kenjiro FUKUSHIMA, Mayumi Nakajima, Yuko Goto‐Koshino, Yasuhito Fujino, Hajime Tsujimoto	2012	13
12	Monitoring of Minimal Residual Disease (MRD) after Multidrug Chemotherapy and Its Correlation to Outcome in Dogs with Lymphoma: A Proof-of-Concept Pilot Study Journal of Veterinary Internal Medicine ·Jumpei Yamazaki, Masashi Takahashi, Asuka Setoguchi, Yoshihisa Fujino, Koichi Ohno, Hajime Tsujimoto	2010	21
13	Quantitative assessment of minimal residual disease (MRD) in canine lymphoma by using real-time polymerase chain reaction Veterinary Immunology and Immunopathology ·Jumpei Yamazaki, Kenji Baba, Yuko Goto‐Koshino, Kangmin Kim Hee-Sun Kook, Yasuhito Fujino, Koichi Ohno, Hajime Tsujimoto	2008	38
14	Molecular pathogenesis of feline leukemia virus-induced malignancies: Insertional mutagenesis Veterinary Immunology and Immunopathology ·Yasuhito Fujino, Koichi Ohno, Hajime Tsujimoto	2008	37
15	Bovine serum albumin is one of common allergens in dogs with spontaneous beef allergy Journal of Allergy and Clinical Immunology ·Katsuyuki Ohmori, Julius Schwab, Koichi Ohno, Masahiro Sakaguchi, Hajime Tsujimoto	2005	1
16	Lymphocyte Blastogenic Responses to Inciting Food Allergens in Dogs with Food Hypersensitivity Journal of Veterinary Internal Medicine ·Kelem Pina Pompeu, Kenichi Masuda, Keigo Kurata, Koichi Ohno, Hajime Tsujimoto	2004	34
17	Lymphocyte Blastogenic Responses to Inciting Food Allergens in Dogs with Food Hypersensitivity Journal of Veterinary Internal Medicine ·Kelem Pina Pompeu, Kenichi Masuda, Keigo Kurata, Koichi Ohno, Hajime Tsujimoto	2004	28
18	Quantitative analysis of Fas and Fas ligand mRNAs in a feline T-lymphoid cell line after infection with feline immunodeficiency virus and primary peripheral blood mononuclear cells obtained from cats infected with the virus Veterinary Immunology and Immunopathology ·Takuya Mizuno, (unknown), Kenji Baba, Yasuyuki Momoi, Yasuyuki Endo, Yorihiro Nishimura, Kenichi Masuda, Koichi Ohno, Hajime Tsujimoto	2003	10
19	スギ(Cryptomeria japonica)花粉の主要アレルゲンに敏感なイヌの季節性過敏性皮膚炎 Veterinary Dermatology ·G. Cerbelaud, Masahiko Sakaguchi, Satoshi Saitô, 黒田梨絵, Sun Man, Atsuhiko Hasegawa, Koichi Ohno, Hajime Tsujimoto	2002	5
20	Free Communications Veterinary Dermatology ·حسن خميس سعيد الملخ, Peter J. Ihrke, Stephen D. White, Philip H. Kass, Kenichi Masuda, Masahiro Sakaguchi, Saburô Saitô, Kazuyo YAMASHITA, Koichi Ohno, Atsuhiko Hasegawa, Hajime Tsujimoto, Chelsea Landau, Dorothy P. Laflamme, Jeanine Harrison	2000	1

About Koichi Ohno

Koichi Ohno is a scholar working on Equine, Small Animals, Virology, Pulmonary and Respiratory Medicine and Immunology and Allergy, having authored 259 papers that have together received 4.3k indexed citations. Recurring topics across this work include Veterinary Oncology Research (103 papers), Virus-based gene therapy research (48 papers), Infectious Diseases and Mycology (26 papers), Immunotherapy and Immune Responses (23 papers), HIV Research and Treatment (18 papers), Herpesvirus Infections and Treatments (17 papers), T-cell and B-cell Immunology (16 papers) and Mast cells and histamine (13 papers). The work is most often cited by research in Small Animals (863 citations), Equine (138 citations), Parasitology (416 citations), Virology (265 citations) and Immunology and Allergy (276 citations). Koichi Ohno has collaborated with scholars based in Japan, United States and France. Frequent co-authors include Hajime Tsujimoto, Yasuhito Fujino, Yuko Goto‐Koshino, Masashi Takahashi, Ko Nakashima, Kenjiro FUKUSHIMA, Kenichi Masuda, Hisashi INOKUMA, Hideyuki Kanemoto and Shingo Maeda. Their work appears in journals such as Veterinary Immunology and Immunopathology, The Veterinary Journal, Journal of Veterinary Medical Science, American Journal of Veterinary Research and Journal of Veterinary Internal Medicine.

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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