Hiroyuki Kaiya

National Cerebral and Cardiovascular Center — Japan

Neuroscience · Life Sciences

45h-index6.3kcitations198works1.22yr avg
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Research Topics

Regulation of Appetite and Obesity(123), Biochemical Analysis and Sensing Techniques(89), Adipose Tissue and Metabolism(54), Adipokines, Inflammation, and Metabolic Diseases(21), Neuropeptides and Animal Physiology(21)

Publications197 total

Oral salmon acylated ghrelin increases food intake in common carp (Cyprinus carpio) via ghrelin receptors, likely through sensory nerves rather than systemic absorption
Peptides·2026
Does motilin primarily regulate gastrointestinal motility in fish?
General and Comparative Endocrinology·2025· 1 cited
Motilin stimulates food intake linked to gastric motility in <i>Suncus murinus</i> : Simultaneous recordings of food intake and gastric motility in the conscious state
Proceedings of the National Academy of Sciences·2025· 1 citedOpen Access
Ghrelin suppresses water intake with a different physiological significance from atrial natriuretic peptide in conscious seawater-acclimated eels
Journal of Experimental Biology·2025Open Access
Physiological roles of ghrelin in the regulation of gastrointestinal motility in vertebrates
General and Comparative Endocrinology·2025· 1 cited
A first glimpse into circulating ghrelin patterns of thin-billed prion chicks (Pachyptila belcheri)
Journal of Comparative Physiology B·2025· 1 citedOpen Access
Potential of Salmon-Derived Acylated Ghrelin as a Functional Food Ingredient for Managing Cisplatin-Induced Anorexia in Mice
SSRN Electronic Journal·2025Open Access
Circulating profile of the appetite-regulating hormone ghrelin during moult-fast and chick provisioning in southern rockhopper penguins (Eudyptes chrysocome chrysocome)
Hormones and Behavior·2024· 3 citedOpen Access
Molecular characterization and distribution of motilin and motilin receptor in the Japanese medaka Oryzias latipes
Cell and Tissue Research·2024· 2 cited
Update on Feeding Regulation by Ghrelin in Birds: Focused on Brain Network
ZOOLOGICAL SCIENCE·2024· 6 cited
Identification, chemical synthesis, and receptor binding of a reptilian gecko ghrelin
Journal of Peptide Science·2024Open Access
Circulating Profile of the Appetite-Regulating Hormone Ghrelin During Moult-Fast and Chick Provisioning in Southern Rockhopper Penguins (Eudyptes Chrysocome Chrysocome)
SSRN Electronic Journal·2024Open Access
Does ghrelin regulate intestinal motility in rabbits? An in vitro study using isolated duodenal strips
General and Comparative Endocrinology·2023· 1 cited
Phylogenetic and functional properties of hagfish neurohypophysial hormone receptors distinct from their jawed vertebrate counterparts
General and Comparative Endocrinology·2023· 9 citedOpen Access
Ghrelin, not corticosterone, is associated with transitioning of phenotypic states in a migratory Galliform
Frontiers in Endocrinology·2023· 8 citedOpen Access
Evolution of Vertebrate Hormones and Their Receptors: Insights from Non-Osteichthyan Genomes
Annual Review of Animal Biosciences·2022· 11 citedOpen Access
Motilin is a regulator of gastric contraction in Japanese fire belly newts (Cynops pyrrhogaster), in vitro studies using isolated gastrointestinal strips of newts, rabbits, and chickens
General and Comparative Endocrinology·2022· 4 cited
Experimental ghrelin administration affects migratory behaviour in a songbird
Hormones and Behavior·2022· 16 cited
Feeding frequency and dietary protein/carbohydrate ratio affect feed intake and appetite regulation-related genes expression in gilthead seabream (Sparus aurata)
Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology·2022· 5 cited
Appetite Regulation During Extended Fasting in Southern Rockhopper Penguins (Eudyptes Chrysocome Chrysocome)
SSRN Electronic Journal·2022Open Access
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Frequent Co-authors

Kenji Kangawa(32), Mikiya Miyazato(12), Hiroshi Hosoda(8), Masayasu Kojima(8), Kouhei Matsuda(6), Minoru Uchiyama(6), Tohru Miura(5), E. Gordon Grau(5), Mitsuhiro Furuse(4), Keisuke Maruyama(4), Seiji Shioda(4), Larry G. Riley(4), Ichiro Sakata(4), Takafumi Sakai(4), Ei-Suke Saito(3), Sei-Ichi Shimakura(3), Tetsuya Hirano(3), Yukari Date(3), Masamitsu Nakazato(3), Yoichi Ueta(3)