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Toshihiro Nakai

Toshihiro Nakai

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Animal Science and Veterinary
Japan
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Animal Science and Veterinary 52 536 491 7 6 199 10522
Microbiology 52 4193 3855 173 159 200 10513

Toshihiro Nakai publications per year

The chart shows the history of publications by Toshihiro Nakai between 1973 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Toshihiro Nakai published across 53 years, from 1973 to 2025, averaging 4.4 papers a year. Output peaked at 14 publications in 1994. 2 of the 235 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1973 to 2025. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 1994. 1973: 2 publications 1974: 1 publication 1975: 1 publication 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 1 publication 1980: 0 publications 1981: 1 publication 1982: 3 publications 1983: 1 publication 1984: 5 publications 1985: 7 publications 1986: 1 publication 1987: 2 publications 1988: 2 publications 1989: 5 publications 1990: 4 publications 1991: 5 publications 1992: 9 publications 1993: 5 publications 1994: 14 publications 1995: 11 publications 1996: 5 publications 1997: 7 publications 1998: 8 publications 1999: 8 publications 2000: 4 publications 2001: 7 publications 2002: 8 publications 2003: 5 publications 2004: 5 publications 2005: 5 publications 2006: 5 publications 2007: 6 publications 2008: 12 publications 2009: 11 publications 2010: 7 publications 2011: 6 publications 2012: 4 publications 2013: 2 publications 2014: 4 publications 2015: 4 publications 2016: 9 publications 2017: 2 publications 2018: 5 publications 2019: 4 publications 2020: 4 publications 2021: 2 publications 2022: 3 publications 2023: 1 publication 2024: 1 publication 2025: 1 publication
1973 2025

235 publications in total across all disciplines

View publications per year as a table
Toshihiro Nakai: publications per year, 1973 to 2025
Year Publications
1973 2
1974 1
1975 1
1976 0
1977 0
1978 0
1979 1
1980 0
1981 1
1982 3
1983 1
1984 5
1985 7
1986 1
1987 2
1988 2
1989 5
1990 4
1991 5
1992 9
1993 5
1994 14
1995 11
1996 5
1997 7
1998 8
1999 8
2000 4
2001 7
2002 8
2003 5
2004 5
2005 5
2006 5
2007 6
2008 12
2009 11
2010 7
2011 6
2012 4
2013 2
2014 4
2015 4
2016 9
2017 2
2018 5
2019 4
2020 4
2021 2
2022 3
2023 1
2024 1
2025 1
Total 235
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Toshihiro Nakai publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where Toshihiro Nakai sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 84 bars. Horizontal axis: publications, 29–33 to 442+. Vertical axis: number of scientists, 0 to 109. Most scientists, 109, have 119–123 publications. The last bar groups every scientist with 442 publications or more. The highlighted bar, 199–203 publications, is where this scientist sits. 29–33 publications: 1 scientist 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29–33 publications 442+

This scientist: 199 publications — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

View publications distribution as a table
Number of Animal Science and Veterinary scientists by publication count, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
Publications Scientists This scientist
29–33 1
34–38 6
39–43 17
44–48 23
49–53 28
54–58 44
59–63 66
64–68 75
69–73 71
74–78 85
79–83 108
84–88 105
89–93 84
94–98 103
99–103 97
104–108 95
109–113 89
114–118 88
119–123 109
124–128 93
129–133 89
134–138 95
139–143 92
144–148 80
149–153 75
154–158 74
159–163 67
164–168 53
169–173 62
174–178 63
179–183 50
184–188 55
189–193 50
194–198 27
199–203 44 199
204–208 31
209–213 28
214–218 38
219–223 33
224–228 36
229–233 29
234–238 35
239–243 23
244–248 24
249–253 29
254–258 28
259–263 21
264–268 25
269–273 11
274–278 18
279–283 13
284–288 18
289–293 10
294–298 12
299–303 11
304–308 15
309–313 14
314–318 14
319–323 8
324–328 8
329–333 13
334–338 14
339–343 13
344–348 10
349–353 11
354–358 5
359–363 8
364–368 8
369–373 6
374–378 7
379–383 8
384–388 3
389–393 4
394–398 5
399–403 8
404–408 5
409–413 4
414–418 3
419–423 8
424–428 5
429–433 3
434–438 5
439–441 5
442+ 99
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Toshihiro Nakai D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where Toshihiro Nakai sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 58 bars. Horizontal axis: D-Index, 20 to 77+. Vertical axis: number of scientists, 0 to 158. Most scientists, 158, have 31 D-Index. The last bar groups every scientist with 77 D-Index or more. The highlighted bar, 52 D-Index, is where this scientist sits. 20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 52 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

View D-Index distribution as a table
Number of Animal Science and Veterinary scientists by D-index, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
D-Index Scientists This scientist
20 5
21 22
22 31
23 44
24 53
25 66
26 80
27 101
28 106
29 116
30 154
31 158
32 143
33 137
34 126
35 134
36 112
37 115
38 105
39 111
40 107
41 87
42 74
43 62
44 61
45 41
46 51
47 43
48 28
49 47
50 40
51 34
52 33 52
53 43
54 16
55 32
56 21
57 18
58 28
59 33
60 17
61 21
62 18
63 21
64 9
65 20
66 11
67 16
68 12
69 17
70 13
71 15
72 11
73 11
74 14
75 5
76 6
77+ 100
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Research.com Recognitions

  • 2026 - Research.com Animal Science and Veterinary in Japan Leader Award
  • 2025 - Research.com Animal Science and Veterinary in Japan Leader Award

Overview

Toshihiro Nakai is affiliated with Hiroshima University in Japan and has contributed to research primarily in the fields of Medicine, Environmental Science, and Immunology and Microbiology. Their work spans several subfields, including Immunology, Ecology, Endocrinology, Nature and Landscape Conservation, and Public Health, Environmental and Occupational Health.

The main topics addressed in Nakai's research include:

  • Aquaculture disease management and microbiota
  • Vibrio bacteria research studies
  • Fish Ecology and Management Studies
  • Viral Infections and Immunology Research
  • Bacteriophages and microbial interactions
  • Cytomegalovirus and herpesvirus research
  • Travel-related health issues

Recent published papers under Nakai's involvement include:

  • Remimazolam anaphylaxis in a patient not allergic to brotizolam: a case report and literature review (2024, BMC Anesthesiology)
  • Preyssler-type phosphotungstate is a new family of negative-staining reagents for the TEM observation of viruses (2022, Scientific Reports)
  • Pathological and immunohistochemical studies following the experimental infection of ayu (Plecoglossus altivelis) by Edwardsiella ictaluri (2020, Microscopy Research and Technique)
  • Zooplankton act as cruise ships promoting the survival and pathogenicity of pathogenic bacteria (2022, Microbiology and Immunology)
  • Environmental factors affecting Edwardsiella ictaluri-induced mortality of riverine ayu, Plecoglossus altivelis (Temminck & Schlegel) (2021, Journal of Fish Diseases)

Coauthors frequently collaborating with Nakai include:

  • Takahiro Nagai
  • Yasuhiko Kawato
  • Alkhateib Y. Gaafar
  • Abdelgayed Younes
  • Fumito Maruyama

Common publication venues for Nakai's work are:

  • Microscopy Research and Technique
  • Fish Pathology
  • Scientific Reports
  • Microbiology and Immunology
  • BMC Anesthesiology

Best Publications

  • Properties of a new virus belonging to nodaviridae found in larval striped jack (Pseudocaranx dentex) with nervous necrosis.

    Koh-Ichiro Mori;Toshihiro Nakai;Kiyokuni Muroga;Misao Arimoto

  • Genomic classification of fish nodaviruses by molecular phylogenetic analysis of the coat protein gene.

    T Nishizawa;M Furuhashi;T Nagai;T Nakai

  • Isolation of bacteriophages specific to a fish pathogen, Pseudomonas plecoglossicida, as a candidate for disease control.

    Se Chang Park;Ichiro Shimamura;Minoru Fukunaga;Koh-Ichiro Mori

  • Bacteriophage therapy of infectious diseases in aquaculture.

    Toshihiro Nakai;Se Chang Park

  • Polymerase chain reaction (PCR) amplification of RNA of striped jack nervous necrosis (SJNNV)

    Toyohiko Nishizawa;Koh-ichiro Mori;Toshihiro Nakai;Iwao Furusawa

  • Cloning of the fish cell line SSN-1 for piscine nodaviruses.

    Tokinori Iwamoto;Toshihiro Nakai;Koh-ichiro Mori;Misao Arimoto

  • Comparison of the coat protein genes of five fish nodaviruses, the causative agents of viral nervous necrosis in marine fish.

    Toyohiko Nishizawa;Koh-ichiro Mori;Makoto Furuhashi;Toshihiro Nakai

  • Nodaviruses as pathogens in larval and juvenile marine finfish

    B.L. Munday;T. Nakai

  • Protective effects of bacteriophage on experimental Lactococcus garvieae infection in yellowtail

    Toshihiro Nakai;R. Sugimoto;K.-H. Park;Satoru Matsuoka

  • Purification and characterization of three isoforms of chrysophsin, a novel antimicrobial peptide in the gills of the red sea bream, Chrysophrys major

    Noriaki Iijima;Norio Tanimoto;Yohko Emoto;Yohko Morita

  • Bacteriophage control of Pseudomonas plecoglossicida infection in ayu Plecoglossus altivelis.

    Se Chang Park;Toshihiro Nakai

  • Vibrio splendidus biovar II as the causative agent of bacillary necrosis of Japanese oyster Crassostrea gigas larvae

    G. Sugumar;Toshihiro Nakai;Yasushi Hirata;D. Matsubara

  • Mass Mortality of Cultured Sevenband Grouper, Epinephelus septemfasciatus, Associated with Viral Nervous Necrosis

    Yutaka Fukuda;Huu Dung Nguyen;Makoto Furuhashi;Toshihiro Nakai

  • Control of VNN in Striped Jack : Selection of Spawners Based on the Detection of SJNNV Gene by Polymerase Chain Reaction (PCR)

    Keiichi Mushiake;Toyohiko Nishizawa;Toshihiro Nakai;Iwao Furusawa

  • Characterization of Striped jack nervous necrosis virus subgenomic RNA3 and biological activities of its encoded protein B2.

    Tokinori Iwamoto;Kazuyuki Mise;Atsushi Takeda;Yasushi Okinaka

  • Detection of Striped Jack Nervous Necrosis Virus (SJNNV) by Enzyme-Linked Immunosorbent Assay (ELISA)

    Misao Arimoto;Keiichi Mushiake;Younosuke Mizuta;Toshihiro Nakai

  • Identification of Host-Specificity Determinants in Betanodaviruses by Using Reassortants between Striped Jack Nervous Necrosis Virus and Sevenband Grouper Nervous Necrosis Virus

    Tokinori Iwamoto;Yasushi Okinaka;Kazuyuki Mise;Koh-Ichiro Mori

  • High permissivity of the fish cell line SSN-1 for piscine nodaviruses.

    Tokinori Iwamoto;Koh-ichiro Mori;Misao Arimoto;Toshihiro Nakai

  • Protective immunity of sevenband grouper, Epinephelus septemfasciatus Thunberg, against experimental viral nervous necrosis

    S Tanaka;K Mori;M Arimoto;T Iwamoto

  • Progression of striped jack nervous necrosis virus (SJNNV) infection in naturally and experimentally infected striped jack Pseudocaranx dentex larvae

    H.D. Nguyen;Toshihiro Nakai;Kiyokuni Muroga

  • Pathogenicity of the causative agent of viral nervous necrosis disease in striped jack, Pseudocaranx dentex (Bloch & Schneider)

    M. Arimoto;K. Mori;T. Nakai;K. Muroga

  • A Viral Disease in Hatchery-reared Larvae and Juveniles of Redspotted Grouper

    Koh-ichiro Mori;Toshihiro Nakai;Motoharu Nagahara;Kiyokuni Muroga

Frequent Co-Authors

Mitsuaki Nishibuchi
Mitsuaki Nishibuchi Kyoto University
Tetsuro Okuno
Tetsuro Okuno Ryukoku University
Takashi Gojobori
Takashi Gojobori King Abdullah University of Science and Technology
Hiroshi Maeda
Hiroshi Maeda Kumamoto University
Shoji Yamanaka
Shoji Yamanaka Hiroshima University
Hidehiro Kondo
Hidehiro Kondo Tokyo University of Marine Science and Technology
Ikuo Hirono
Ikuo Hirono Tokyo University of Marine Science and Technology
Ronald P. Hedrick
Ronald P. Hedrick University of California, Davis
Patrick T. K. Woo
Patrick T. K. Woo University of Guelph
Masahiro Sadakane
Masahiro Sadakane Hiroshima University

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