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Yoshitaka Oka

Yoshitaka Oka

D-Index & Metrics

Neuroscience

D-Index
50
Citations
6584
World Ranking
5841
National Ranking
188

Overview

What is he best known for?

The fields of study he is best known for:

  • Gene
  • Neuron
  • Internal medicine

Yoshitaka Oka spends much of his time researching Internal medicine, Endocrinology, Hypothalamus, Preoptic area and Terminal nerve. His Internal medicine study combines topics from a wide range of disciplines, such as Vertebrate and Nucleus. His Endocrinology study frequently draws connections between adjacent fields such as Cell biology.

His Hypothalamus research includes themes of Central nervous system and Estrogen. His Preoptic area study deals with Cerebrum intersecting with Olfactory bulb. His research in Terminal nerve focuses on subjects like Gonadotropin-releasing hormone, which are connected to Free nerve ending, Biocytin, Electrophysiology and Neuroscience.

His most cited work include:

  • Identification of KiSS-1 product kisspeptin and steroid-sensitive sexually dimorphic kisspeptin neurons in medaka (oryzias latipes). (174 citations)
  • Immunocytochemical demonstration of salmon GnRH and chicken GnRH-II in the brain of masu salmon, Oncorhynchus masou. (173 citations)
  • Lesions of gonadotropin-releasing hormone-immunoreactive terminal nerve cells: effects on the reproductive behavior of male dwarf gouramis. (142 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of investigation include Internal medicine, Endocrinology, Neuroscience, Terminal nerve and Gonadotropin-releasing hormone. His work carried out in the field of Internal medicine brings together such families of science as Nucleus, Cell biology and Neuron. His study involves Preoptic area, Dwarf gourami, Hypothalamus, Hormone and Kisspeptin, a branch of Endocrinology.

His research investigates the connection between Hypothalamus and topics such as Central nervous system that intersect with problems in Spinal cord. His research investigates the link between Neuroscience and topics such as Anatomy that cross with problems in Toad and Immunohistochemistry. His Gonadotropin-releasing hormone research is multidisciplinary, relying on both Patch clamp, Transgene and Gonadotropin.

He most often published in these fields:

  • Internal medicine (50.61%)
  • Endocrinology (50.00%)
  • Neuroscience (29.27%)

What were the highlights of his more recent work (between 2011-2020)?

  • Endocrinology (50.00%)
  • Internal medicine (50.61%)
  • Gonadotropin-releasing hormone (23.78%)

In recent papers he was focusing on the following fields of study:

The scientist’s investigation covers issues in Endocrinology, Internal medicine, Gonadotropin-releasing hormone, Neuroscience and Receptor. He regularly links together related areas like Nucleus in his Endocrinology studies. His Estrogen, Follicle-stimulating hormone, Androgen and Hormone study in the realm of Internal medicine connects with subjects such as Androgen receptor.

His work focuses on many connections between Gonadotropin-releasing hormone and other disciplines, such as Transgene, that overlap with his field of interest in Oryzias. The study incorporates disciplines such as Terminal nerve and Green fluorescent protein in addition to Neuroscience. The various areas that Yoshitaka Oka examines in his Preoptic area study include Cerebrum and In situ hybridization.

Between 2011 and 2020, his most popular works were:

  • A Neural Mechanism Underlying Mating Preferences for Familiar Individuals in Medaka Fish (77 citations)
  • Neuroanatomical evidence that kisspeptin directly regulates isotocin and vasotocin neurons. (57 citations)
  • Steroid Sensitive kiss2 Neurones in the Goldfish: Evolutionary Insights into the Duplicate Kisspeptin Gene‐Expressing Neurones (52 citations)

In his most recent research, the most cited papers focused on:

  • Gene
  • Neuron
  • Genetics

His primary scientific interests are in Internal medicine, Endocrinology, Preoptic area, Transgene and Gonadotropin-releasing hormone. His Internal medicine study frequently draws connections to other fields, such as Gene. His Endocrinology research incorporates themes from Evolutionary biology, Signal transduction and Gene duplication.

His Preoptic area research is under the purview of Nucleus. In his study, which falls under the umbrella issue of Transgene, Endogeny is strongly linked to Oryzias. His Gonadotropin-releasing hormone research is multidisciplinary, relying on both Vertebrate, Electrophysiology, Neuroscience and Follicle-stimulating hormone.

Best Publications

  • Identification of KiSS-1 product kisspeptin and steroid-sensitive sexually dimorphic kisspeptin neurons in medaka (oryzias latipes).

    Shinji Kanda;Yasuhisa Akazome;Takuya Matsunaga;Naoyuki Yamamoto

  • Immunocytochemical demonstration of salmon GnRH and chicken GnRH-II in the brain of masu salmon, Oncorhynchus masou.

    Masafumi Amano;Yoshitaka Oka;Katsumi Aida;Naoto Okumoto

  • Neurobiological mechanisms underlying GnRH pulse generation by the hypothalamus

    Kei-ichiro Maeda;Satoshi Ohkura;Yoshihisa Uenoyama;Yoshihiro Wakabayashi

  • Lesions of gonadotropin-releasing hormone-immunoreactive terminal nerve cells: effects on the reproductive behavior of male dwarf gouramis.

    Naoyuki Yamamoto;Yoshitaka Oka;Seiichiro Kawashima

  • Multiple gonadotropin-releasing hormone (GnRH)-immunoreactive systems in the brain of the dwarf gourami, Colisa lalia: immunohistochemistry and radioimmunoassay.

    Naoyuki Yamamoto;Yoshitaka Oka;Masafumi Amano;Katsumi Aida

  • Gonadotropin-releasing hormone (GnRH)-immunoreactive terminal nerve cells have intrinsic rhythmicity and project widely in the brain

    Yoshitaka Oka;Toshiya Matsushima

  • A Neural Mechanism Underlying Mating Preferences for Familiar Individuals in Medaka Fish

    Teruhiro Okuyama;Saori Yokoi;Hideki Abe;Hideki Abe;Yasuko Isoe

  • Immunocytochemical localization of sGnRH and cGnRH-II in the brain of goldfish, Carassius auratus

    Myung-Hee Kim;Yoshitaka Oka;Masafumi Amano;Makito Kobayashi

  • Possible Role of Oestrogen in Pubertal Increase of Kiss1/Kisspeptin Expression in Discrete Hypothalamic Areas of Female Rats

    K. Takase;Y. Uenoyama;N. Inoue;H. Matsui

  • Evolution of the Hypothalamic-Pituitary-Gonadal Axis Regulation in Vertebrates Revealed by Knockout Medaka.

    Akiko Takahashi;Shinji Kanda;Tomohiro Abe;Yoshitaka Oka

  • Telencephalic and preoptic areas integrate sexual behavior in hime salmon (landlocked red salmon, Oncorhynchus nerka): results of electrical brain stimulation experiments

    Masahiko Satou;Yoshitaka Oka;Makoto Kusunoki;Toshiya Matsushima

  • Functional and evolutionary insights into vertebrate kisspeptin systems from studies of fish brain.

    Y. Akazome;S. Kanda;K. Okubo;Y. Oka

  • Gonadotropin‐releasing hormone (GnRH) immunoreactive system in the brain of the dwarf gourami (Colisa lalia) as revealed by light microscopic immunocytochemistry using a monoclonal antibody to common amino acid sequence of GnRH

    Yoshitaka Oka;Masumi Ichikawa

  • Hypothalamic Kiss1 but Not Kiss2 Neurons Are Involved in Estrogen Feedback in Medaka (Oryzias latipes)

    Yuta Mitani;Shinji Kanda;Yasuhisa Akazome;Buntaro Zempo

  • Involvement of the telencephalic hemispheres and the preoptic area in sexual behavior of the male goldfish, Carassius auratus: a brain-lesion study

    Yoshimasa Koyama;Masahiko Satou;Yoshitaka Oka;Kazuo Ueda

  • Neuroanatomical evidence that kisspeptin directly regulates isotocin and vasotocin neurons.

    Shinji Kanda;Yasuhisa Akazome;Yuta Mitani;Kataaki Okubo

  • TMC4 is a novel chloride channel involved in high-concentration salt taste sensation.

    Yoichi Kasahara;Masataka Narukawa;Masataka Narukawa;Yoshiro Ishimaru;Shinji Kanda

  • Evolutionally Conserved Function of Kisspeptin Neuronal System Is Nonreproductive Regulation as Revealed by Nonmammalian Study

    Mikoto Nakajo;Shinji Kanda;Tomomi Karigo;Akiko Takahashi

  • Three GnRH systems in the brain and pituitary of a pleuronectiform fish, the barfin flounder Verasper moseri.

    Masafumi Amano;Yoshitaka Oka;Takeshi Yamanome;Koichi Okuzawa

  • Preoptic gonadotropin-releasing hormone (GnRH) neurons innervate the pituitary in teleosts.

    Naoyuki Yamamoto;Ishwar S Parhar;Nobuhiko Sawai;Nobuhiko Sawai;Yoshitaka Oka

  • Descending pathways to the spinal cord in the himé salmon (landlocked red salmon, oncorhynchus nerka)

    Yoshitaka Oka;Masahiko Satou;Kazuo Ueda

Frequent Co-Authors

Hideki Abe
Hideki Abe National Institute for Materials Science
Kiyoshi Naruse
Kiyoshi Naruse National Institute for Basic Biology
Ishwar S. Parhar
Ishwar S. Parhar University of Toyama
Minoru Tanaka
Minoru Tanaka Nagoya University
Eric W. Roubos
Eric W. Roubos Radboud University
Takeshi Kaneko
Takeshi Kaneko Kyoto University
Thomas Knöpfel
Thomas Knöpfel Hong Kong Baptist University

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