Hiroyuki Kaiya

6.3k total citations
149 papers, 5.4k citations indexed

About

Hiroyuki Kaiya is a scholar working on Endocrine and Autonomic Systems, Nutrition and Dietetics and Physiology. According to data from OpenAlex, Hiroyuki Kaiya has authored 149 papers receiving a total of 5.4k indexed citations (citations by other indexed papers that have themselves been cited), including 111 papers in Endocrine and Autonomic Systems, 81 papers in Nutrition and Dietetics and 53 papers in Physiology. Recurrent topics in Hiroyuki Kaiya's work include Regulation of Appetite and Obesity (108 papers), Biochemical Analysis and Sensing Techniques (81 papers) and Adipose Tissue and Metabolism (47 papers). Hiroyuki Kaiya is often cited by papers focused on Regulation of Appetite and Obesity (108 papers), Biochemical Analysis and Sensing Techniques (81 papers) and Adipose Tissue and Metabolism (47 papers). Hiroyuki Kaiya collaborates with scholars based in Japan, United States and Austria. Hiroyuki Kaiya's co-authors include Kenji Kangawa, Mikiya Miyazato, Hiroshi Hosoda, Masayasu Kojima, Takio Kitazawa, Kouhei Matsuda, Mitsuhiro Furuse, Yoshio Takei, E. Gordon Grau and Minoru Uchiyama and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and SHILAP Revista de lepidopterología.

In The Last Decade

Hiroyuki Kaiya

143 papers receiving 5.2k citations

Peers

Hiroyuki Kaiya

EAS

PHYSI

CMN

Suraj Unniappan Canada

Mikiya Miyazato Japan

Hélène Volkoff Canada

Noboru Murakami Japan

E. Scharrer Switzerland

John P. McMurtry United States

Kouhei Matsuda Japan

Robert A. Steiner United States

E. Aguilar Spain

Tetsuya Tachibana Japan

Suraj Unniappan Canada

Hiroyuki Kaiya

2.4k ×0.6

EAS

1.1k ×0.4

1.4k ×0.7

PHYSI

954 ×1.2

499 ×0.8

CMN

Citations per year, relative to Hiroyuki Kaiya Hiroyuki Kaiya (= 1×) peers Suraj Unniappan

Countries citing papers authored by Hiroyuki Kaiya

Since Specialization

Citations

This map shows the geographic impact of Hiroyuki Kaiya's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hiroyuki Kaiya with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hiroyuki Kaiya more than expected).

Fields of papers citing papers by Hiroyuki Kaiya

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hiroyuki Kaiya. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hiroyuki Kaiya. The network helps show where Hiroyuki Kaiya may publish in the future.

Co-authorship network of co-authors of Hiroyuki Kaiya

This figure shows the co-authorship network connecting the top 25 collaborators of Hiroyuki Kaiya. A scholar is included among the top collaborators of Hiroyuki Kaiya based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Hiroyuki Kaiya. Hiroyuki Kaiya is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Fusani, Leonida, et al.. (2025). A first glimpse into circulating ghrelin patterns of thin-billed prion chicks (Pachyptila belcheri). Journal of Comparative Physiology B. 195(2). 209–213. 1 indexed citations

Zhang, Shuangyi, Hiroyuki Kaiya, & Takio Kitazawa. (2023). Does ghrelin regulate intestinal motility in rabbits? An in vitro study using isolated duodenal strips. General and Comparative Endocrinology. 344. 114384–114384. 1 indexed citations

Zhang, Shuangyi, et al.. (2019). Identification of pheasant ghrelin and motilin and their actions on contractility of the isolated gastrointestinal tract. General and Comparative Endocrinology. 285. 113294–113294. 16 indexed citations

Kaiya, Hiroyuki, et al.. (2018). Peripherally injected ghrelin and leptin reduce food hoarding and mass gain in the coal tit (Periparus ater). Europe PMC (PubMed Central). 1 indexed citations

Eikenaar, Cas, et al.. (2018). Ghrelin, corticosterone and the resumption of migration from stopover, an automated telemetry study. Physiology & Behavior. 194. 450–455. 10 indexed citations

Goymann, Wolfgang, et al.. (2017). Ghrelin affects stopover decisions and food intake in a long-distance migrant. Proceedings of the National Academy of Sciences. 114(8). 1946–1951. 52 indexed citations

Kaiya, Hiroyuki, et al.. (2014). GPCRSの分子進化: グレリン/グレリン受容体. Journal of Molecular Endocrinology. 52(3). 87–100. 2 indexed citations

Kaiya, Hiroyuki, Kenji Kangawa, & Mikiya Miyazato. (2013). Ghrelin Receptors in Non-Mammalian Vertebrates. Frontiers in Endocrinology. 4. 81–81. 34 indexed citations

Kaiya, Hiroyuki, et al.. (2013). Stimulatory effect of ghrelin on food intake in bullfrog larvae. Peptides. 51. 74–79. 17 indexed citations

10.

Kang, Ki Sung, et al.. (2012). GHRP-6 mimics ghrelin-induced stimulation of food intake and suppression of locomotor activity in goldfish. Peptides. 34(2). 324–328. 18 indexed citations

11.

Kaiya, Hiroyuki, Itaru Hasunuma, Kazuyoshi Tsutsui, Kenji Kangawa, & Mikiya Miyazato. (2011). Only frog ghrelin of the genus, Rana, has threonine residue at the N-terminal position 3. 2010. 74. 2 indexed citations

12.

YAMAMOTO, Ichiro, Nobuhiro Nakao, Hiroyuki Kaiya, et al.. (2011). Two chicken neuromedin U receptors: Characterization of primary structure, biological activity and tissue distribution. General and Comparative Endocrinology. 174(2). 116–123. 4 indexed citations

13.

Kurokawa, Tadahide, Hiroyuki Kaiya, Hiroshi Hashimoto, et al.. (2011). Distribution of pepsinogen- and ghrelin-producing cells in the digestive tract of Japanese eel (Anguilla japonica) during metamorphosis and the adult stage. General and Comparative Endocrinology. 173(3). 475–482. 10 indexed citations

14.

Kaiya, Hiroyuki, Mikiya Miyazato, Kenji Kangawa, Richard Peter, & Suraj Unniappan. (2008). Ghrelin: A multifunctional hormone in non-mammalian vertebrates. Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology. 149(2). 109–128. 193 indexed citations

15.

Jönsson, Elisabeth, et al.. (2007). Plasma ghrelin levels in rainbow trout in response to fasting, feeding and food composition, and effects of ghrelin on voluntary food intake. Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology. 147(4). 1116–1124. 90 indexed citations

16.

Sato, Miho, Keiko Nakahara, Shintaro Goto, et al.. (2006). Effects of ghrelin and des-acyl ghrelin on neurogenesis of the rat fetal spinal cord. Biochemical and Biophysical Research Communications. 350(3). 598–603. 79 indexed citations

17.

Nishi, Yoshihiro, Hiroshi Hiejima, Hiroshi Hosoda, et al.. (2005). Ingested Medium-Chain Fatty Acids Are Directly Utilized for the Acyl Modification of Ghrelin. Endocrinology. 146(5). 2255–2264. 206 indexed citations

18.

Geelissen, Sofie, Q. Swennen, Serge Van der Geyten, et al.. (2005). Peripheral ghrelin reduces food intake and respiratory quotient in chicken. Domestic Animal Endocrinology. 30(2). 108–116. 82 indexed citations

19.

Kaiya, Hiroyuki & Yoshio Takei. (1997). Osmoregulation and hormone of the heart.. 14(1). 13–27.

20.

Takei, Yoshio & Hiroyuki Kaiya. (1996). Comparative Approach to a Family of Cardiac Osmoregulatory Hormones.. KAGAKU TO SEIBUTSU. 34(8). 510–518.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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