World's Best Scientists 2026 revealed!
Chiharu Tohyama

Chiharu Tohyama

D-Index & Metrics

Environmental Sciences

D-Index
52
Citations
12103
World Ranking
4424
National Ranking
72

Best Publications

  • The 2005 World Health Organization reevaluation of human and Mammalian toxic equivalency factors for dioxins and dioxin-like compounds.

    Martin Van den Berg;Linda S. Birnbaum;Michael Denison;Mike De Vito

  • Modulation of oestrogen receptor signalling by association with the activated dioxin receptor.

    Fumiaki Ohtake;Ken-ichi Takeyama;Takahiro Matsumoto;Hirochika Kitagawa

  • Metallothionein in radiation exposure: its induction and protective role.

    Unknown

  • Polybrominated dibenzo-p-dioxins, dibenzofurans, and biphenyls: inclusion in the toxicity equivalency factor concept for dioxin-like compounds.

    Martin van den Berg;Michael S. Denison;Linda S. Birnbaum;Michael J. DeVito

  • Bisphenol-A Affects Spermatogenesis in the Adult Rat Even at a Low Dose.

    Unknown

  • Distinct response to dioxin in an arylhydrocarbon receptor (AHR)-humanized mouse

    Takashi Moriguchi;Hozumi Motohashi;Tomonori Hosoya;Osamu Nakajima

  • Maternal Exposure to a Low Dose of 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) Suppressed the Development of Reproductive Organs of Male Rats: Dose-Dependent Increase of mRNA Levels of 5α-Reductase Type 2 in Contrast to Decrease of Androgen Receptor in the Pubertal Ventral Prostate

    Unknown

  • Cross-Talk between 2,3,7,8-Tetrachlorodibenzo-p-dioxin and Testosterone Signal Transduction Pathways in LNCaP Prostate Cancer Cells

    N.R. Jana;S. Sarkar;M. Ishizuka;J. Yonemoto

  • Reduction of metallothioneins promotes the disease expression of familial amyotrophic lateral sclerosis mice in a dose-dependent manner

    Seiichi Nagano;Masahiko Satoh;Hisae Sumi;Harutoshi Fujimura

  • Developmental neurotoxicity of dioxin and its related compounds.

    Unknown

  • Aryl hydrocarbon receptor-mediated effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin on glucose-stimulated insulin secretion in mice.

    Hisaka Kurita;Wataru Yoshioka;Noriko Nishimura;Naoto Kubota

  • Effects of vinclozolin administration on sperm production and testosterone biosynthetic pathway in adult male rat.

    Unknown

  • Enhanced Renal Toxicity by Inorganic Mercury in Metallothionein-Null Mice

    Unknown

  • A constitutively active arylhydrocarbon receptor induces growth inhibition of jurkat T cells through changes in the expression of genes related to apoptosis and cell cycle arrest.

    Tomohiro Ito;Shin Ichi Tsukumo;Norio Suzuki;Hozumi Motohashi

  • Stabilization of mutant Cu/Zn superoxide dismutase (SOD1) protein by coexpressed wild SOD1 protein accelerates the disease progression in familial amyotrophic lateral sclerosis mice.

    Kei Fukada;Seiichi Nagano;Masahiko Satoh;Chiharu Tohyama

  • Altered thyroxin and retinoid metabolic response to 2,3,7,8-tetrachlorodibenzo-p-dioxin in aryl hydrocarbon receptor-null mice.

    Unknown

  • Induction of spermatogenic cell apoptosis in prepubertal rat testes irrespective of testicular steroidogenesis: a possible estrogenic effect of di(n-butyl) phthalate

    Unknown

  • Executive function deficits and social-behavioral abnormality in mice exposed to a low dose of dioxin in utero and via lactation.

    Toshihiro Endo;Masaki Kakeyama;Yukari Uemura;Asahi Haijima

  • Molecular targets that link dioxin exposure to toxicity phenotypes

    Wataru Yoshioka;Richard E. Peterson;Chiharu Tohyama

  • In utero and Lactational Exposure to Acetamiprid Induces Abnormalities in Socio-Sexual and Anxiety-Related Behaviors of Male Mice

    Kazuhiro Sano;Tomohiko Isobe;Jiaxin Yang;Tin-Tin Win-Shwe

Frequent Co-Authors

Richard E. Peterson
Richard E. Peterson University of Wisconsin–Madison
Kazunori Nakajima
Kazunori Nakajima Keio University
Kazuo T. Suzuki
Kazuo T. Suzuki Chiba University
Masayuki Yamamoto
Masayuki Yamamoto Tohoku University
Hozumi Motohashi
Hozumi Motohashi Tohoku University
Tadashi Baba
Tadashi Baba University of Tsukuba
Heidelore Fiedler
Heidelore Fiedler Örebro University
Mats Tysklind
Mats Tysklind Umeå University
Linda S. Birnbaum
Linda S. Birnbaum Research Triangle Park Foundation
David L. Adelson
David L. Adelson University of Adelaide

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Related Online Degrees & Career Pathways

For those interested in Environmental Sciences, pursuing related online degrees can open diverse career opportunities. Many students seek an accredited affordable online general studies degree as a flexible starting point. These programs provide a broad foundation while keeping education costs manageable.

Some learners may prefer the easiest bachelors degree options within environmental fields to balance their studies with other commitments. Selecting a degree that matches one’s learning style and goals can lead to better academic success.

Specialized paths also exist, such as an online geoscience degree, which focuses on earth systems and natural resources. This is ideal for careers in research, conservation, and resource management.

Additionally, incorporating Geographic Information Systems (GIS) skills is highly valuable. Many colleges with GIS programs offer online courses that enhance spatial analysis expertise, a key tool in environmental assessment and planning.

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