K. Hirokawa

3.2k total citations · 1 hit paper
79 papers, 2.5k citations indexed

About

K. Hirokawa is a scholar working on Immunology, Physiology and Molecular Biology. According to data from OpenAlex, K. Hirokawa has authored 79 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Immunology, 20 papers in Physiology and 19 papers in Molecular Biology. Recurrent topics in K. Hirokawa's work include T-cell and B-cell Immunology (14 papers), Immune Cell Function and Interaction (13 papers) and Immunotherapy and Immune Responses (10 papers). K. Hirokawa is often cited by papers focused on T-cell and B-cell Immunology (14 papers), Immune Cell Function and Interaction (13 papers) and Immunotherapy and Immune Responses (10 papers). K. Hirokawa collaborates with scholars based in Japan, United States and Singapore. K. Hirokawa's co-authors include Masanori Utsuyama, Masanobu Kitagawa, Takuji Shirasawa, Chieri Kurashima, Y Esaki, Anis Larbi, Alan A. Cohen, Tamàs Fülöp, Jacek M. Witkowski and Shusaku Yoshiki and has published in prestigious journals such as Journal of Clinical Investigation, The Journal of Experimental Medicine and Blood.

In The Last Decade

K. Hirokawa

79 papers receiving 2.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Immunology of Aging: the Birth of Inflammaging

2021 275 citations K. Hirokawa et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
K. Hirokawa Japan	28	922	772	452	315	279	79	2.5k
Nicolas J. Goulding United Kingdom	27	985 1.1×	1.1k 1.4×	267 0.6×	210 0.7×	185 0.7×	59	2.4k
Steven H. Zuckerman United States	29	1.1k 1.2×	818 1.1×	267 0.6×	147 0.5×	352 1.3×	81	2.7k
Jens van den Brandt Germany	28	820 0.9×	923 1.2×	350 0.8×	122 0.4×	239 0.9×	73	2.6k
Annalisa Capobianco Italy	22	1.4k 1.5×	830 1.1×	271 0.6×	644 2.0×	352 1.3×	45	3.4k
Stilla Frede Germany	30	571 0.6×	1.1k 1.4×	425 0.9×	309 1.0×	178 0.6×	80	3.0k
Peter Schratzberger Austria	28	440 0.5×	1.1k 1.4×	451 1.0×	132 0.4×	307 1.1×	57	2.7k
Yasuhiro Maeda Japan	25	947 1.0×	620 0.8×	195 0.4×	530 1.7×	428 1.5×	147	2.6k
Kottarappat N. Dileepan United States	23	1.2k 1.3×	664 0.9×	381 0.8×	113 0.4×	106 0.4×	64	2.3k
S M Prescott United States	20	960 1.0×	1.1k 1.4×	460 1.0×	702 2.2×	224 0.8×	25	3.4k
M L Shin United States	30	2.0k 2.2×	1.0k 1.3×	505 1.1×	321 1.0×	229 0.8×	50	3.8k

Countries citing papers authored by K. Hirokawa

Since Specialization

Citations

This map shows the geographic impact of K. Hirokawa'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 K. Hirokawa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites K. Hirokawa more than expected).

Fields of papers citing papers by K. Hirokawa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. Hirokawa. 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 K. Hirokawa. The network helps show where K. Hirokawa may publish in the future.

Co-authorship network of co-authors of K. Hirokawa

This figure shows the co-authorship network connecting the top 25 collaborators of K. Hirokawa. A scholar is included among the top collaborators of K. Hirokawa 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 K. Hirokawa. K. Hirokawa 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

Akahane, Koshi & K. Hirokawa. (2014). Strategy of Daiichi Sankyo Discovery Research in Oncology. Japanese Journal of Clinical Oncology. 44(2). 109–115. 2 indexed citations

Shiraishi, Junichi, Masanori Utsuyama, Shinichiro Seki, et al.. (2003). Essential Microenvironment for Thymopoiesis is Preserved in Human Adult and Aged Thymus. Journal of Immunology Research. 10(1). 53–59. 12 indexed citations

Hirokawa, K. & Masanori Utsuyama. (2002). Animal models and possible human application of immunological restoration in the elderly. Mechanisms of Ageing and Development. 123(8). 1055–1063. 19 indexed citations

Wang, Chrong‐Reen, Takayuki Yoshimoto, Hisashi Nagase, et al.. (2000). Impaired delayed‐type hypersensitivity response in mutant mice secreting soluble CD4 without expression of membrane‐bound CD4. Immunology. 100(3). 309–316. 4 indexed citations

Ishiyama, Noboru, Masanori Utsuyama, Masanobu Kitagawa, & K. Hirokawa. (1999). Immunological enhancement with a low dose of cyclophosphamide in aged mice. Mechanisms of Ageing and Development. 111(1). 1–12. 14 indexed citations

Wakikawa, Atsuko, Masanori Utsuyama, & K. Hirokawa. (1997). Altered expression of various receptors on T cells in young and old mice after mitogenic stimulation: a flow cytometric analysis. Mechanisms of Ageing and Development. 94(1-3). 113–122. 48 indexed citations

Kitagawa, Masanobu, Ichiro Saito, Takeshi Kuwata, et al.. (1997). Overexpression of tumor necrosis factor (TNF)-α and interferon (IFN)-γ by bone marrow cells from patients with myelodysplastic syndromes. Leukemia. 11(12). 2049–2054. 214 indexed citations

Iiai, Tsuneo, Michio Kimura, Yasuyuki Kawachi, et al.. (1995). Characterization of intermediate T-cell receptor cells expanding in the liver, thymus and other organs in autoimmune lpr mice: parallel analysis with their normal counterparts.. PubMed Central. 84(4). 601–8. 13 indexed citations

Akashi, Takumi, Takuji Shirasawa, & K. Hirokawa. (1994). Gene expression of CD24 core polypeptide molecule in normal rat tissues and human tumor cell lines. Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin. 425(4). 399–406. 49 indexed citations

10.

Hirokawa, K., et al.. (1994). Immunological alterations with aging—laying a stress on recent progress in Japan. Archives of Gerontology and Geriatrics. 19(2). 171–183. 10 indexed citations

11.

Hirokawa, K., et al.. (1994). Inhibition of nitric oxide synthesis in vascular smooth muscle by retinoids. British Journal of Pharmacology. 113(4). 1448–1454. 46 indexed citations

12.

Hirayama, Ryuichi, Kazuo Takemura, Zenro Nihei, et al.. (1993). Differential effect of host microenvironment and systemic humoral factors on the implantation and the growth rate of metastatic tumor in parabiotic mice constructed between young and old mice. Mechanisms of Ageing and Development. 71(3). 213–221. 17 indexed citations

13.

Nishimura, Y., Takeshi Inamitsu, Yojiro Yanagawa, et al.. (1990). Expression of the human MHC, HLA-DQW6 genes alters the immune response in C57BL/6 mice.. The Journal of Immunology. 145(1). 353–360. 32 indexed citations

14.

Kurashima, Chieri, et al.. (1990). Immunohistologic study on focal lymphocytic infiltration in the liver of the elderly autopsy cases.. Nippon Ronen Igakkai Zasshi Japanese Journal of Geriatrics. 27(6). 749–755. 4 indexed citations

15.

Hirokawa, K., et al.. (1990). Age-related hyperplasia of the thymus and T-cell system in the Buffalo rat. Virchows Archiv B Cell Pathology Including Molecular Pathology. 59(1). 38–47. 26 indexed citations

16.

Hirayama, Ryuichi, K. Hirokawa, Yoko Takagi, et al.. (1989). Changes in serum levels of forssman-like antibody in patients with gastric cancer. Cancer. 63(8). 1528–1533. 3 indexed citations

17.

Kawasaki, Hiroshi, Masanori Utsuyama, Hiroshi Takahashi, et al.. (1989). Establishment of a monoclonal antibody against senile plaques and its application for immunohistological and immunoelectron microscopical studies in the brain of the elderly. Acta Neuropathologica. 79(1). 44–47. 7 indexed citations

18.

Hirokawa, K., et al.. (1988). Influence of age on the proliferation and peripheralization of thymic T cells.. PubMed. 112(1). 13–21. 31 indexed citations

19.

Hirokawa, K., Masanori Utsuyama, Eiko Moriizumi, et al.. (1988). Immunohistochemical studies in human thymomas. Virchows Archiv B Cell Pathology. 55(1). 371–80. 7 indexed citations

20.

Hirokawa, K., Chieri Kurashima, Yasunori Hayashi, Kazuto Sato, & N. Miyasaka. (1986). Recent Advances in Immunopathology of Autoimmune Diseases in Salivary Glands. Pathology and Immunopathology Research. 5(3-5). 239–247. 3 indexed citations

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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