Y Hirooka

1.7k total citations · 1 hit paper
10 papers, 1.4k citations indexed

About

Y Hirooka is a scholar working on Cardiology and Cardiovascular Medicine, Physiology and Complementary and alternative medicine. According to data from OpenAlex, Y Hirooka has authored 10 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Cardiology and Cardiovascular Medicine, 5 papers in Physiology and 3 papers in Complementary and alternative medicine. Recurrent topics in Y Hirooka's work include Nitric Oxide and Endothelin Effects (5 papers), Blood Pressure and Hypertension Studies (4 papers) and Cardiovascular and exercise physiology (3 papers). Y Hirooka is often cited by papers focused on Nitric Oxide and Endothelin Effects (5 papers), Blood Pressure and Hypertension Studies (4 papers) and Cardiovascular and exercise physiology (3 papers). Y Hirooka collaborates with scholars based in Japan. Y Hirooka's co-authors include T Inou, Satoshi Suzuki, Masaru Sugimachi, Akira Takeshita, Akihiro Takeshita, K. Egashira, H Kai, Shin‐ichi Ando, K Egashira and Takahiro Imaizumi and has published in prestigious journals such as Circulation, Journal of Clinical Investigation and Hypertension.

In The Last Decade

Y Hirooka

10 papers receiving 1.3k 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.

Reduction in serum cholesterol with pravastatin improves endothelium-dependent coronary vasomotion in patients with hypercholesterolemia.

1994 497 citations K. Egashira, Y Hirooka et al. Circulation profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Y Hirooka Japan	8	844	502	380	211	182	10	1.4k
Philip R. Casino United States	8	1.2k 1.4×	962 1.9×	202 0.5×	288 1.4×	79 0.4×	8	1.8k
Lawrence T. McGrath United Kingdom	15	614 0.7×	542 1.1×	186 0.5×	244 1.2×	62 0.3×	27	1.5k
G. Brennan United Kingdom	8	637 0.8×	468 0.9×	324 0.9×	465 2.2×	55 0.3×	11	1.4k
Hidekazu Hashimoto Japan	19	618 0.7×	673 1.3×	184 0.5×	185 0.9×	123 0.7×	72	1.4k
Martin R. Siegfried United States	11	464 0.5×	706 1.4×	182 0.5×	110 0.5×	44 0.2×	13	1.3k
Norio Komai Japan	17	539 0.6×	429 0.9×	177 0.5×	161 0.8×	45 0.2×	26	1.5k
Mathias Oelze Germany	7	743 0.9×	1.2k 2.5×	162 0.4×	305 1.4×	60 0.3×	8	2.1k
P Zera United States	5	1.0k 1.2×	510 1.0×	176 0.5×	113 0.5×	53 0.3×	6	1.6k
M Verza Italy	16	705 0.8×	235 0.5×	163 0.4×	464 2.2×	67 0.4×	24	1.3k
Giorgio Bettoni Italy	18	999 1.2×	247 0.5×	216 0.6×	427 2.0×	63 0.3×	31	1.4k

Countries citing papers authored by Y Hirooka

Since Specialization

Citations

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

Fields of papers citing papers by Y Hirooka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Y Hirooka

This figure shows the co-authorship network connecting the top 25 collaborators of Y Hirooka. A scholar is included among the top collaborators of Y Hirooka 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 Y Hirooka. Y Hirooka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

10 of 10 papers shown

1.

Iwamoto, Masako, Kazuhiko Imaizumi, Masao Sato, et al.. (2002). Serum lipid profiles in Japanese women and men during consumption of walnuts. European Journal of Clinical Nutrition. 56(7). 629–637. 99 indexed citations

2.

Hirooka, Y, Takahiro Imaizumi, Tatsuya Tagawa, et al.. (1994). Effects of L-arginine on impaired acetylcholine-induced and ischemic vasodilation of the forearm in patients with heart failure.. Circulation. 90(2). 658–668. 123 indexed citations

3.

Egashira, K., Y Hirooka, H Kai, et al.. (1994). Reduction in serum cholesterol with pravastatin improves endothelium-dependent coronary vasomotion in patients with hypercholesterolemia.. Circulation. 89(6). 2519–2524. 497 indexed citations breakdown →

4.

Egashira, K, T Inou, Y Hirooka, et al.. (1993). Effects of age on endothelium-dependent vasodilation of resistance coronary artery by acetylcholine in humans.. Circulation. 88(1). 77–81. 319 indexed citations

5.

Egashira, K, T Inou, Akira Yamada, Y Hirooka, & Akihiro Takeshita. (1992). Preserved endothelium-dependent vasodilation at the vasospastic site in patients with variant angina.. Journal of Clinical Investigation. 89(3). 1047–1052. 78 indexed citations

6.

Hirooka, Y, Takahiro Imaizumi, Hiroaki Masaki, et al.. (1992). Captopril improves impaired endothelium-dependent vasodilation in hypertensive patients.. Hypertension. 20(2). 175–180. 149 indexed citations

7.

Imaizumi, Tsutomu, Y Hirooka, & Akira Takeshita. (1992). Decreased Skeletal Muscle Vasodilation in Patients with Congestive Heart Failure.. Japanese Circulation Journal. 56(5). 500–503. 5 indexed citations

8.

Hirooka, Y, Akira Takeshita, Shin Suzuki, et al.. (1990). Attenuated forearm vasodilative response to intra-arterial atrial natriuretic peptide in patients with heart failure.. Circulation. 82(1). 147–153. 66 indexed citations

9.

Suzuki, Shin, et al.. (1989). Biphasic forearm vascular responses to intraarterial arginine vasopressin.. Journal of Clinical Investigation. 84(2). 427–434. 41 indexed citations

10.

Imaizumi, Takahiro, Akira Takeshita, Noriko Nakamura, et al.. (1988). Vasodilating effect of the new beta-blocker tilisolol hydrochloride in humans.. PubMed. 38(9). 1342–4. 7 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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