World's Best Scientists 2026 revealed!
Yasumasa Arai

Yasumasa Arai

D-Index & Metrics

Neuroscience

D-Index
47
Citations
8913
World Ranking
6415
National Ranking
209

Overview

Yasumasa Arai is affiliated with Juntendo University in Japan and has contributed to research primarily in Medicine and Immunology and Microbiology. Their work spans several subfields including Immunology, Pediatrics, Perinatology and Child Health, Rheumatology, Endocrinology, Diabetes and Metabolism, and Genetics.

Arai's research topics focus on biosimilars and bioanalytical methods, pharmaceutical studies and practices, rheumatoid arthritis research and therapies, adrenal hormones and disorders, chronic lymphocytic leukemia research, neuropeptides and animal physiology, and neuroendocrine regulation and behavior.

Frequent coauthors collaborating with Arai include Masayuki Takanuma, Shinji Tsukahara, Mark C. Genovese, Herbert Kellner, and Rafael Muniz.

Yasumasa Arai has published in various scientific venues, with multiple papers appearing in:

  • RMD Open
  • BMC Pharmacology and Toxicology
  • International Journal of Clinical Pharmacology and Therapeutics
  • Endocrinology
  • Journal of Neuroendocrinology

Selected recent publications include:

  • "Long-term safety, immunogenicity and efficacy comparing FKB327 with the adalimumab reference product in patients with active rheumatoid arthritis: data from randomised double-blind and open-label extension studies," 2020, RMD Open
  • "Comparison of two biosimilarity studies of FKB327 with the adalimumab reference product: randomized phase 1 studies of single-blind, single-dose subcutaneous injection in healthy Japanese male participants," 2022, BMC Pharmacology and Toxicology
  • "Pharmacokinetics, safety, tolerability, and immunogenicity of FKB238, a new biosimilar of bevacizumab, in healthy participants," 2022, International Journal of Clinical Pharmacology and Therapeutics
  • "Sex Difference in Vasoactive Intestinal Polypeptide Neural Projection in the Limbic System of the Mouse Brain," 2025, Endocrinology
  • "A male-dominant cell group expressing calbindin- D28K and androgen receptor in the mouse preoptic area requires postnatal testicular androgens and histone deacetylation," 2025, Journal of Neuroendocrinology

Best Publications

  • Distribution and possible roles of the highly polysialylated neural cell adhesion molecule (NCAM-H) in the developing and adult central nervous system

    Tatsunori Seki;Yasumasa Arai

  • Age-related production of new granule cells in the adult dentate gyrus

    Tatsunori Seki;Yasumasa Arai

  • Expression of highly polysialylated NCAM in the neocortex and piriform cortex of the developing and the adult rat.

    Tatsunori Seki;Yasumasa Arai

  • Sexual dimorphism in 'wiring pattern' in the hypothalamic arcuate nucleus and its modification by neonatal hormonal environment.

    A. Matsumoto;Y. Arai

  • The persistent expression of a highly polysialylated NCAM in the dentate gyrus of the adult rat.

    Tatsunori Seki;Yasumasa Arai

  • Sexual dimorphism in synaptic organization in the amygdala and its dependence on neonatal hormone environment

    Masako Nishizuka;Yasumasa Arai

  • Sexual difference in nuclear volume and its ontogeny in the rat amygdala.

    S. Mizukami;M. Nishizuka;Y. Arai

  • Male-female difference in synaptic organization of the ventromedial nucleus of the hypothalamus in the rat

    Akira Matsumoto;Yasumasa Arai

  • Estrogen and apoptosis in the developing sexually dimorphic preoptic area in female rats

    Yasumasa Arai;Yoshie Sekine;Shizuko Murakami

  • Long-term effects of perinatal exposure to sex steroids and diethylstilbestrol on the reproductive system of male mammals.

    Yasumasa Arai;Takao Mori;Yoshihide Suzuki;Howard A. Bern

  • Sex difference in volume of the ventromedial nucleus of the hypothalamus in the rat.

    Akira Matsumoto;Yasumasa Arai

  • The ontogeny of luteinizing hormone-releasing hormone (LHRH) producing neurons in the chick embryo: possible evidence for migrating LHRH neurons from the olfactory epithelium expressing a highly polysialylated neural cell adhesion molecule.

    Shizuko Murakami;Tatsunori Seki;Katsumi Wakabayashi;Yasumasa Arai

  • Role of septum and preoptic area in regulating masculine and feminine sexual behavior in male rats.

    Yasuhiko Kondo;Akira Shinoda;Korehito Yamanouchi;Yasumasa Arai

  • Neuronal plasticity in the deafferented hypothalamic arcuate nucleus of adult female rats and its enhancement by treatment with estrogen.

    Akira Matsumoto;Yasumasa Arai

  • Organizational action of estrogen on synaptic pattern in the amygdala: implications for sexual differentiation of the brain.

    M. Nishizuka;Y. Arai

  • Temporal and spacial relationships between PSA-NCAM-expressing, newly generated granule cells, and radial glia-like cells in the adult dentate gyrus.

    Tatsunori Seki;Yasumasa Arai

  • Sex differences in the anteroventral periventricular nucleus of the preoptic area and in the related effects of androgen in prenatal rats.

    Hiroyuki Sumida;Masako Nishizuka;Yasuhiko Kano;Yasumasa Arai

  • Synaptogenic effect of estrogen on the hypothalamic arcuate nucleus of the adult female rat.

    A. Matsumoto;Y. Arai

  • Synapse formation of the hypothalamic arcuate nucleus during post-natal development in the female rat and its modification by neonatal estrogen treatment

    Unknown

  • Critical Exposure Time for Androgenization of the Developing Hypothalamus in the Female Rat

    Y. Arai;R. A. Gorski

  • Effect of estrogen of early postnatal development of synaptic formation in the hypothalamic arcuate nucleus of female rats

    Akira Matsumoto;Yasumasa Arai

Frequent Co-Authors

Tatsunori Seki
Tatsunori Seki Tokyo Medical University
Toshikazu Shirai
Toshikazu Shirai Juntendo University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Best Scientists Citing Yasumasa Arai

Trending Scientists