Yoshitaka Nagahama

Yoshitaka Nagahama publication distribution in Medicine in 2026

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

Yoshitaka Nagahama D-index placement in Medicine in 2026

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

Best Publications

• 6 The Functional Morphology of Teleost Gonads

  Yoshitaka Nagahama

  726
  Citations

• Foxl2 Up-Regulates Aromatase Gene Transcription in a Female-Specific Manner by Binding to the Promoter as Well as Interacting with Ad4 Binding Protein/Steroidogenic Factor 1

  De Shou Wang;Tohru Kobayashi;Lin Yan Zhou;Lin Yan Zhou;Bindhu Paul-Prasanth

  538
  Citations

• Regulation of oocyte growth and maturation in fish

  Yoshitaka Nagahama;Michiyasu Yoshikuni;Masakane Yamashita;Toshinobu Tokumoto

  447
  Citations

• Identification of maturation-inducing steroid in a teleost, the amago salmon (Oncorhynchus rhodurus)☆

  Yoshitaka Nagahama;Shinji Adachi

  370
  Citations

• Aromatase inhibitor and 17α-methyltestosterone cause sex-reversal from genetical females to phenotypic males and suppression of P450 aromatase gene expression in Japanese flounder (Paralichthys olivaceus)

  Takeshi Kitano;Kazufumi Takamune;Yoshitaka Nagahama;Shin Ichi Abe

  340
  Citations

• A Tandem Duplicate of Anti-Müllerian Hormone with a Missense SNP on the Y Chromosome Is Essential for Male Sex Determination in Nile Tilapia, Oreochromis niloticus.

  Minghui Li;Yunlv Sun;Jiue Zhao;Hongjuan Shi

  330
  Citations

• Structural and functional evolution of gonadotropin‐releasing hormone in vertebrates

  K. Okubo;Y. Nagahama

  328
  Citations

• The role of hormones in the acquisition of sperm motility in salmonid fish.

  Takeshi Miura;Takeshi Miura;Kohei Yamauchi;Hiroya Takahashi;Yoshitaka Nagahama

  292
  Citations

• Estradiol-17β production in amago salmon (Oncorhynchus rhodurus) ovarian follicles: Role of the thecal and granulosa cells

  Hirohiko Kagawa;Graham Young;Shinji Adachi;Yoshitaka Nagahama

  285
  Citations

• Sexually dimorphic expression of two types of DM (Doublesex/Mab-3)-domain genes in a teleost fish, the Tilapia (Oreochromis niloticus).

  Guijun Guan;Tohru Kobayashi;Yoshitaka Nagahama

  259
  Citations

• Cloning and sequence analysis of the cDNA encoding P-450 aromatase (P450arom) from a rainbow trout (Oncorhynchus mykiss) ovary; relationship between the amount of P450arom mRNA and the production of oestradiol-17β in the ovary

  M. Tanaka;T. M. Telecky;S. Fukada;S. Adachi

  238
  Citations

• Plasma 17α,20β-dihydroxy-4-pregnen-3-one levels during sexual maturation of amago salmon (Oncorhynchus rhodurus): Correlation with plasma gonadotropin and in vitro production by ovarian follicles

  Graham Young;Laurence W. Crim;Hirohiko Kagawa;Akira Kambegawa

  230
  Citations

• Induction of Spermatogenesis in Male Japanese Eel, Anguilla japonica, by a Single Injection of Human Chorionic Gonadotropin(Endocrinology)

  Takeshi Miura;Kohei Yamauhi;Yoshitaka Nagahama;Hiroya Takahashi

  229
  Citations

• Changes in serum concentrations of steroid hormones, thyroxine, and vitellogenin during spawning migration of the chum slamon, Oncorhynchus keta

  Hiroshi Ueda;Osamu Hiroi;Akihiko Hara;Kohei Yamauchi

  228
  Citations

• Involvement of gonadotrophin and steroid hormones in spermiation in the amago salmon, Oncorhynchus rhodurus, and goldfish, Carassius auratus.

  Hiroshi Ueda;Akira Kambegawa;Yoshitaka Nagahama

  226
  Citations

• Histological and ultrastructural evidence for the role of gonadal steroid hormones in sex change in the protogynous wrasse Thalassoma duperrey

  Masaru Nakamura;Thomas F. Hourigan;Kohei Yamauchi;Yoshitaka Nagahama

  224
  Citations

• Sexual dimorphic expression of DMRT1 and Sox9a during gonadal differentiation and hormone-induced sex reversal in the teleost fish Nile tilapia (Oreochromis niloticus).

  Tohru Kobayashi;Hiroko Kajiura-Kobayashi;Guijun Guan;Yoshitaka Nagahama

  222
  Citations

• Relative in vitro effectiveness of 17α,20β-dihydroxy-4-pregnen-3-one and other pregnene derivatives on germinal vesicle breakdown in oocytes of ayu (Plecoglossus altivelis), amago salmon (Oncorhynchus rhodurus), rainbow trout (Salmo gairdneri), and goldfish (Carassius autatus)

  Yoshitaka Nagahama;Keiji Hirose;Graham Young;Shinji Adachi

  211
  Citations

• Correlation of plasma estradiol-17β and progesterone levels with ultrastructure and histochemistry of ovarian follicles in the white-spotted char, Salvelinus leucomaenis

  H. Kagawa;K. Takano;Y. Nagahama

  210
  Citations

• Diurnal rhythm of oocyte development and plasma steroid hormone levels in the female red sea bream, Pagrus major, during the spawning season

  Michiya Matsuyama;S. Adachi;Y. Nagahama;S. Matsuura

  201
  Citations