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Akihiko Hara

Akihiko Hara

D-Index & Metrics

Biology and Biochemistry

D-Index
56
Citations
8455
World Ranking
14687
National Ranking
1045

Overview

Akihiko Hara is affiliated with Hokkaido University in Japan and has contributed extensively to multiple scientific fields, particularly within Biochemistry, Genetics and Molecular Biology, Medicine, and Environmental Science. Their research spans several subfields including Physiology, Genetics, Endocrinology, Diabetes and Metabolism, Nature and Landscape Conservation, and Molecular Biology.

The scientist's work mainly addresses topics such as reproductive biology and its impact on aquatic species, genetic and clinical aspects of sex determination and chromosomal abnormalities, growth hormone and insulin-like growth factors, fish ecology and management studies, estrogen and related hormone effects, identification and quantification in food, and aquaculture disease management and microbiota.

Notable recent publications by Akihiko Hara include:

  • Hepatic estrogen-responsive genes relating to oogenesis in cutthroat trout (Oncorhynchus clarki): The transcriptional induction in primary cultured hepatocytes and the in vitro promoter transactivation in responses to estradiol-17β, 2021, General and Comparative Endocrinology
  • Identification and characterization of lipocalin-type prostaglandin D2 synthase homologs in the urine of male rockfish, 2022, Gene
  • Development of a time-resolved fluoroimmunoassay for salmonid insulin-like growth factor binding protein-2b, 2023, General and Comparative Endocrinology
  • Community structure of fish larvae associated with advections of the Kuroshio and its neighboring waters, 2024, Progress In Oceanography
  • Evaluation of binding capacity of circulating insulin-like growth factor binding protein-1b in salmonids using a ligand immunofunctional assay, 2023, Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology

Frequent coauthors collaborating with Akihiko Hara include:

  • Naoshi Hiramatsu
  • Takashi Todo
  • Jun Nagata
  • Yo Yamaguchi
  • Takuma Kawasaki

The scientist's work has been published recurrently in venues such as General and Comparative Endocrinology, Gene, Progress In Oceanography, Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, and Aquaculture, reflecting a breadth of contributions to aquatic biology and endocrinological research.

Best Publications

  • TWO FORMS OF VITELLOGENIN, YIELDING TWO DISTINCT LIPOVITELLINS, PLAY DIFFERENT ROLES DURING OOCYTE MATURATION AND EARLY DEVELOPMENT OF BARFIN FLOUNDER , VERASPER MOSERI, A MARINE TELEOST THAT SPAWNS PELAGIC EGGS

    Takahiro Matsubara;Nobuyuki Ohkubo;Tadashi Andoh;Craig V. Sullivan

  • Elevated serum vitellogenin levels and gonadal abnormalities in wild male flounder (Pleuronectes yokohamae) from Tokyo Bay, Japan.

    S. Hashimoto;H. Bessho;A. Hara;M. Nakamura

  • Comparison of extraction methods and assay validation for salmon insulin-like growth factor-I using commercially available components.

    Munetaka Shimizu;Munetaka Shimizu;Penny Swanson;Haruhisa Fukada;Akihiko Hara

  • 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

  • Identification of estrogenic compounds in wastewater effluent

    Norihide Nakada;Hiroshi Nyunoya;Masaru Nakamura;Akihiko Hara

  • Vitellogenesis and choriogenesis in fishes

    Akihiko Hara;Naoshi Hiramatsu;Toshiaki Fujita

  • Multiple piscine vitellogenins: biomarkers of fish exposure to estrogenic endocrine disruptors in aquatic environments

    Naoshi Hiramatsu;Takahiro Matsubara;Toshiaki Fujita;Craig V. Sullivan

  • Multiple vitellogenins and their unique roles in marine teleosts

    T. Matsubara;M. Nagae;N. Ohkubo;T. Andoh

  • Salmon growth hormone receptor: molecular cloning, ligand specificity, and response to fasting.

    Haruhisa Fukada;Haruhisa Fukada;Yuichi Ozaki;Andrew L. Pierce;Andrew L. Pierce;Shinji Adachi

  • Ovarian development and serum sex steroid and vitellogenin profiles in the female cultured sturgeon hybrid, the bester

    B. Mojazi Amiri;M. Maebayashi;A. Hara;S. Adachi

  • Comparative studies on immunochemical properties of female-specific serum protein and egg yolk proteins in rainbow trout (Salmo gairdneri).

    Akihiko Hara;Hidematsu Hirai

  • Ovarian yolk formation in fishes: Molecular mechanisms underlying formation of lipid droplets and vitellogenin-derived yolk proteins

    Naoshi Hiramatsu;Takashi Todo;Craig V. Sullivan;Justin Schilling

  • Multiple Vitellogenins (Vgs) in Mosquitofish (Gambusia affinis): Identification and Characterization of Three Functional Vg Genes and Their Circulating and Yolk Protein Products

    Sayumi Sawaguchi;Yasunori Koya;Norio Yoshizaki;Nobuyuki Ohkubo

  • Vitellogenin-derived yolk proteins of white perch, Morone americana: purification, characterization, and vitellogenin-receptor binding.

    Naoshi Hiramatsu;Akihiko Hara;Kaori Hiramatsu;Haruhisa Fukada

  • Vitellogenesis in Aquatic Animals

    Naoshi Hiramatsu;Takahiro Matsubara;Gregory M. Weber;Craig V. Sullivan

  • Identification of the salmon somatolactin receptor, a new member of the cytokine receptor family.

    Haruhisa Fukada;Yuichi Ozaki;Andrew L. Pierce;Shinji Adachi

  • Purification, characterization and immunoassay of striped bass (Morone saxatilis) vitellogenin.

    Yunxia Tao;Akihiko Hara;Ronald G. Hodson;L. Curr Woods

  • Identification and characterization of proteases involved in specific proteolysis of vitellogenin and yolk proteins in salmonids

    Naoshi Hiramatsu;Naoshi Hiramatsu;Norimasa Ichikawa;Haruhisa Fukada;Toshiaki Fujita

  • Conserved and Variant Molecular and Functional Features of Multiple Egg Yolk Precursor Proteins (Vitellogenins) in White Perch (Morone americana) and other Teleosts

    Benjamin J. Reading;Naoshi Hiramatsu;Sayumi Sawaguchi;Takahiro Matsubara

  • Induction of Three Vitellogenins by 17beta-Estradiol with Concurrent Inhibition of the Growth Hormone-Insulin-Like Growth Factor 1 Axis in a Euryhaline Teleost, the Tilapia (Oreochromis mossambicus)

    Lori K. Davis;Naoshi Hiramatsu;Kaori Hiramatsu;Benjamin J. Reading

Frequent Co-Authors

Craig V. Sullivan
Craig V. Sullivan North Carolina State University
Walton W. Dickhoff
Walton W. Dickhoff National Oceanic and Atmospheric Administration
Taisen Iguchi
Taisen Iguchi National Institute for Basic Biology
Louis J. Guillette
Louis J. Guillette Medical University of South Carolina
Hideki Kishimura
Hideki Kishimura Hokkaido University
Michael Sela
Michael Sela Weizmann Institute of Science
Hideshige Takada
Hideshige Takada Tokyo University of Agriculture and Technology
Nancy D. Denslow
Nancy D. Denslow University of Florida
Yoshitaka Nagahama
Yoshitaka Nagahama National Institute for Basic Biology
Shugo Watabe
Shugo Watabe Kitasato University

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