World's Best Scientists 2026 revealed!
Masaharu Takahashi

Masaharu Takahashi

D-Index & Metrics

Microbiology

D-Index
66
Citations
13897
World Ranking
2429
National Ranking
83

Masaharu Takahashi publication distribution in Microbiology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where Masaharu Takahashi sits on this spectrum.

55–64 publications: 8 scientists 65–74 publications: 29 scientists 75–84 publications: 55 scientists 85–94 publications: 112 scientists 95–104 publications: 137 scientists 105–114 publications: 190 scientists 115–124 publications: 235 scientists 125–134 publications: 234 scientists 135–144 publications: 288 scientists 145–154 publications: 264 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 233 scientists 205–214 publications: 207 scientists 215–224 publications: 198 scientists 225–234 publications: 155 scientists 235–244 publications: 161 scientists 245–254 publications: 160 scientists 255–264 publications: 146 scientists 265–274 publications: 139 scientists 275–284 publications: 148 scientists 285–294 publications: 115 scientists 295–304 publications: 96 scientists 305–314 publications: 88 scientists 315–324 publications: 106 scientists 325–334 publications: 65 scientists 335–344 publications: 76 scientists 345–354 publications: 64 scientists 355–364 publications: 62 scientists 365–374 publications: 65 scientists 375–384 publications: 61 scientists 385–394 publications: 34 scientists 395–404 publications: 44 scientists 405–414 publications: 36 scientists 415–424 publications: 35 scientists 425–434 publications: 29 scientists 435–444 publications: 33 scientists 445–454 publications: 34 scientists 455–464 publications: 25 scientists 465–474 publications: 26 scientists 475–484 publications: 20 scientists 485–494 publications: 19 scientists 495–504 publications: 16 scientists 505–514 publications: 17 scientists 515–524 publications: 23 scientists 525–534 publications: 14 scientists 535–544 publications: 14 scientists 545–554 publications: 18 scientists 555–564 publications: 12 scientists 565–574 publications: 7 scientists 575–584 publications: 9 scientists 585–594 publications: 9 scientists 595–604 publications: 9 scientists 605–614 publications: 7 scientists 615–624 publications: 9 scientists 625–634 publications: 7 scientists 635–644 publications: 4 scientists 645–654 publications: 5 scientists 655–664 publications: 6 scientists 665–674 publications: 7 scientists 675–678 publications: 3 scientists 679+ publications: 99 scientists
55 publications 679+

This scientist: 216 publications — 55th percentile

55% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 679 publications or more.

Masaharu Takahashi D-index placement in Microbiology in 2026

The chart shows the D-index (discipline H-index) distribution of Microbiology scientists ranked by Research.com in 2026. The highlighted bar marks where Masaharu Takahashi sits on this spectrum.

40 D-Index: 30 scientists 41 D-Index: 86 scientists 42 D-Index: 90 scientists 43 D-Index: 117 scientists 44 D-Index: 122 scientists 45 D-Index: 123 scientists 46 D-Index: 108 scientists 47 D-Index: 110 scientists 48 D-Index: 106 scientists 49 D-Index: 109 scientists 50 D-Index: 129 scientists 51 D-Index: 111 scientists 52 D-Index: 116 scientists 53 D-Index: 127 scientists 54 D-Index: 134 scientists 55 D-Index: 134 scientists 56 D-Index: 111 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 122 scientists 62 D-Index: 126 scientists 63 D-Index: 144 scientists 64 D-Index: 109 scientists 65 D-Index: 103 scientists 66 D-Index: 124 scientists 67 D-Index: 112 scientists 68 D-Index: 103 scientists 69 D-Index: 131 scientists 70 D-Index: 93 scientists 71 D-Index: 93 scientists 72 D-Index: 96 scientists 73 D-Index: 92 scientists 74 D-Index: 80 scientists 75 D-Index: 66 scientists 76 D-Index: 87 scientists 77 D-Index: 60 scientists 78 D-Index: 73 scientists 79 D-Index: 59 scientists 80 D-Index: 57 scientists 81 D-Index: 55 scientists 82 D-Index: 47 scientists 83 D-Index: 77 scientists 84 D-Index: 50 scientists 85 D-Index: 45 scientists 86 D-Index: 42 scientists 87 D-Index: 41 scientists 88 D-Index: 32 scientists 89 D-Index: 38 scientists 90 D-Index: 35 scientists 91 D-Index: 34 scientists 92 D-Index: 27 scientists 93 D-Index: 26 scientists 94 D-Index: 33 scientists 95 D-Index: 22 scientists 96 D-Index: 37 scientists 97 D-Index: 22 scientists 98 D-Index: 21 scientists 99 D-Index: 22 scientists 100 D-Index: 30 scientists 101 D-Index: 16 scientists 102 D-Index: 20 scientists 103 D-Index: 17 scientists 104 D-Index: 19 scientists 105 D-Index: 16 scientists 106 D-Index: 19 scientists 107 D-Index: 18 scientists 108 D-Index: 14 scientists 109 D-Index: 10 scientists 110 D-Index: 9 scientists 111 D-Index: 7 scientists 112 D-Index: 11 scientists 113 D-Index: 6 scientists 114 D-Index: 15 scientists 115 D-Index: 10 scientists 116 D-Index: 12 scientists 117 D-Index: 7 scientists 118 D-Index: 10 scientists 119 D-Index: 10 scientists 120 D-Index: 11 scientists 121 D-Index: 2 scientists 122 D-Index: 7 scientists 123 D-Index: 12 scientists 124 D-Index: 5 scientists 125 D-Index: 9 scientists 126 D-Index: 6 scientists 127+ D-Index: 95 scientists
40 D-Index 127+

This scientist: 66 D-Index — 58th percentile

58% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

Overview

Masaharu Takahashi is affiliated with Jichi Medical University in Japan and has contributed extensively to the field of medicine, particularly within hepatology.

The researcher's main fields of study include:

  • Medicine

The prominent subfields of study are:

  • Hepatology
  • Infectious Diseases
  • Epidemiology
  • Small Animals
  • Cardiology and Cardiovascular Medicine

Masaharu Takahashi's research primarily covers topics such as:

  • Hepatitis Viruses Studies and Epidemiology
  • Viral gastroenteritis research and epidemiology
  • Liver Disease and Transplantation
  • Hepatitis B Virus Studies
  • Hepatitis C virus research
  • Veterinary medicine and infectious diseases
  • Liver Diseases and Immunity

Frequent co-authors throughout their publications have been:

  • Hiroaki Okamoto
  • Shigeo Nagashima
  • Kazumoto Murata
  • Putu Prathiwi Primadharsini
  • Tsutomu Nishizawa

Most publications have appeared in the following venues:

  • Virus Research
  • Viruses
  • Clinical Journal of Gastroenterology
  • Kanzo
  • Hepatology Research

Representative recent papers include:

  • Prevalence and genotype/subtype distribution of hepatitis E virus (HEV) among wild boars in Japan: Identification of a genotype 5 HEV strain, 2020, Virus Research
  • First detection and characterization of rat hepatitis E Virus (HEV-C1) in Japan, 2022, Virus Research

This profile reflects a research focus on hepatitis E virus variants and their epidemiology in animal reservoirs within Japan and neighboring regions, contributing to the broader understanding of viral hepatitis transmission and genotype diversity.

Best Publications

  • Sporadic acute or fulminant hepatitis E in Hokkaido, Japan, may be food-borne, as suggested by the presence of hepatitis E virus in pig liver as food

    Yasuyuki Yazaki;Hitoshi Mizuo;Masaharu Takahashi;Tsutomu Nishizawa

  • Polyphyletic Strains of Hepatitis E Virus Are Responsible for Sporadic Cases of Acute Hepatitis in Japan

    Hitoshi Mizuo;Kazuyuki Suzuki;Yasuhiro Takikawa;Yoshiki Sugai

  • Marked genomic heterogeneity and frequent mixed infection of TT virus demonstrated by PCR with primers from coding and noncoding regions.

    Hiroaki Okamoto;Masaharu Takahashi;Tsutomu Nishizawa;Masato Ukita

  • Swine hepatitis E virus strains in Japan form four phylogenetic clusters comparable with those of Japanese isolates of human hepatitis E virus.

    Masaharu Takahashi;Tsutomu Nishizawa;Haruko Miyajima;Yuhko Gotanda

  • Hepatitis E Virus (HEV) Strains in Serum Samples Can Replicate Efficiently in Cultured Cells Despite the Coexistence of HEV Antibodies: Characterization of HEV Virions in Blood Circulation

    Masaharu Takahashi;Toshinori Tanaka;Hideyuki Takahashi;Yu Hoshino

  • Development and evaluation of an efficient cell-culture system for Hepatitis E virus.

    Toshinori Tanaka;Masaharu Takahashi;Eiji Kusano;Hiroaki Okamoto

  • ORF3 protein of hepatitis E virus is essential for virion release from infected cells.

    Kentaro Yamada;Masaharu Takahashi;Yu Hoshino;Hideyuki Takahashi

  • Genomic characterization of TT viruses (TTVs) in pigs, cats and dogs and their relatedness with species-specific TTVs in primates and tupaias.

    Hiroaki Okamoto;Masaharu Takahashi;Tsutomu Nishizawa;Akio Tawara

  • Analysis of the full-length genome of a hepatitis E virus isolate obtained from a wild boar in Japan that is classifiable into a novel genotype.

    Masaharu Takahashi;Tsutomu Nishizawa;Hiroyuki Sato;Yukihiro Sato

  • Analysis of the complete genome of indigenous swine hepatitis E virus isolated in Japan.

    Hiroaki Okamoto;Masaharu Takahashi;Tsutomu Nishizawa;Katsuhiko Fukai

  • Possible risk factors for the transmission of hepatitis E virus and for the severe form of hepatitis E acquired locally in Hokkaido, Japan

    Hitoshi Mizuo;Yasuyuki Yazaki;Kenji Sugawara;Fumio Tsuda

  • Simultaneous Detection of Immunoglobulin A (IgA) and IgM Antibodies against Hepatitis E Virus (HEV) Is Highly Specific for Diagnosis of Acute HEV Infection

    Masaharu Takahashi;Shigeyuki Kusakai;Hitoshi Mizuo;Kazuyuki Suzuki

  • Hepatitis E virus egress depends on the exosomal pathway, with secretory exosomes derived from multivesicular bodies

    Shigeo Nagashima;Suljid Jirintai;Masaharu Takahashi;Tominari Kobayashi

  • Prevalence of Hepatitis E Virus (HEV) Infection in Wild Boars and Deer and Genetic Identification of a Genotype 3 HEV from a Boar in Japan

    Hideto Sonoda;Masahiko Abe;Takeshi Sugimoto;Yukihiro Sato

  • Characterization of the Quasi-Enveloped Hepatitis E Virus Particles Released by the Cellular Exosomal Pathway.

    Shigeo Nagashima;Masaharu Takahashi;Tominari Kobayashi;Tanggis

  • Characterization of Japanese swine and human hepatitis E virus isolates of genotype IV with 99 % identity over the entire genome.

    Tsutomu Nishizawa;Masaharu Takahashi;Hitoshi Mizuo;Haruko Miyajima

  • Analysis of the entire genomes of thirteen TT virus variants classifiable into the fourth and fifth genetic groups, isolated from viremic infants.

    Y. H. Peng;T. Nishizawa;M. Takahashi;T. Ishikawa

  • Prevalence of hepatitis E virus infection among hemodialysis patients in Japan: evidence for infection with a genotype 3 HEV by blood transfusion.

    Takehiro Mitsui;Yukie Tsukamoto;Chikao Yamazaki;Kazuo Masuko

  • Monoclonal antibodies raised against the ORF3 protein of hepatitis E virus (HEV) can capture HEV particles in culture supernatant and serum but not those in feces.

    Masaharu Takahashi;Kentaro Yamada;Yu Hoshino;Hideyuki Takahashi

  • A PSAP motif in the ORF3 protein of hepatitis E virus is necessary for virion release from infected cells.

    Shigeo Nagashima;Masaharu Takahashi;Jirintai;Toshinori Tanaka

Frequent Co-Authors

Hiroaki Okamoto
Hiroaki Okamoto Jichi Medical University
Fumio Tsuda
Fumio Tsuda Toshiba (Japan)
Ryutaro Maeda
Ryutaro Maeda National Institute of Advanced Industrial Science and Technology
Tooru Shimosegawa
Tooru Shimosegawa Tohoku University
Yuzo Miyakawa
Yuzo Miyakawa Miyakawa Memorial Research Foundation
Takeshi Tanaka
Takeshi Tanaka Texas Medical Center
Makoto Mayumi
Makoto Mayumi Jichi Medical University
Hironori Yamamoto
Hironori Yamamoto Jichi Medical University
Yasuo Kagawa
Yasuo Kagawa Kagawa Nutrition University
Kentaro Sugano
Kentaro Sugano Jichi Medical University

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