Tetsuya Kawahara

1.1k total citations · 1 hit paper
49 papers, 742 citations indexed

About

Tetsuya Kawahara is a scholar working on Pathology and Forensic Medicine, Physiology and Organic Chemistry. According to data from OpenAlex, Tetsuya Kawahara has authored 49 papers receiving a total of 742 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Pathology and Forensic Medicine, 9 papers in Physiology and 8 papers in Organic Chemistry. Recurrent topics in Tetsuya Kawahara's work include Vitamin D Research Studies (10 papers), Diet and metabolism studies (6 papers) and Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities (4 papers). Tetsuya Kawahara is often cited by papers focused on Vitamin D Research Studies (10 papers), Diet and metabolism studies (6 papers) and Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities (4 papers). Tetsuya Kawahara collaborates with scholars based in Japan, United States and Norway. Tetsuya Kawahara's co-authors include Ichiro Yamashita, Bess Dawson‐Hughes, Rolf Jorde, Anastassios G. Pittas, Tetsuya Inazu, Gen Suzuki, Chie Kawahara, Yosuke Okada, Yoshiya Tanaka and Ethan M. Balk and has published in prestigious journals such as Circulation, SHILAP Revista de lepidopterología and Annals of Internal Medicine.

In The Last Decade

Tetsuya Kawahara

47 papers receiving 723 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.

Vitamin D and Risk for Type 2 Diabetes in People With Prediabetes

2023 93 citations Anastassios G. Pittas, Tetsuya Kawahara et al. Annals of Internal Medicine profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Tetsuya Kawahara Japan	15	197	106	103	94	88	49	742
E. Delvin Canada	20	216 1.1×	157 1.5×	274 2.7×	81 0.9×	114 1.3×	43	1.1k
Verena Katzke Germany	19	178 0.9×	185 1.7×	218 2.1×	78 0.8×	103 1.2×	49	1.0k
Mieko Kawamura Japan	13	100 0.5×	132 1.2×	183 1.8×	29 0.3×	181 2.1×	20	799
Akio Nakashima Japan	16	173 0.9×	124 1.2×	221 2.1×	56 0.6×	69 0.8×	76	944
Masayuki Kato Japan	21	92 0.5×	209 2.0×	198 1.9×	57 0.6×	201 2.3×	51	1.3k
H. Engler Switzerland	13	69 0.4×	116 1.1×	139 1.3×	71 0.8×	524 6.0×	24	868
D. J. Byrd Germany	19	120 0.6×	114 1.1×	390 3.8×	58 0.6×	88 1.0×	37	1.4k
Toru Shinzato Japan	21	223 1.1×	206 1.9×	323 3.1×	57 0.6×	228 2.6×	48	1.7k
W. C. Willett United States	7	192 1.0×	138 1.3×	177 1.7×	163 1.7×	70 0.8×	8	1.3k
Myron Gross United States	9	117 0.6×	186 1.8×	156 1.5×	56 0.6×	284 3.2×	11	940

Countries citing papers authored by Tetsuya Kawahara

Since Specialization

Citations

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

Fields of papers citing papers by Tetsuya Kawahara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tetsuya Kawahara

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

Nohara, Takahiro, Tetsuya Kawahara, Hiroshi Kano, et al.. (2025). Association Between Preoperative 5‐Aminolevulinic Acid Administration Timing and Perioperative Hypotension. International Journal of Urology. 32(12). 1827–1833. 1 indexed citations

Kawahara, Tetsuya, et al.. (2025). Etiology and Clinical Features of Patients With Hyponatremia in the Emergency Department: A Cross-sectional Study. The Journal of Clinical Endocrinology & Metabolism. 110(11). 3025–3033. 1 indexed citations

Kawahara, Tetsuya, Tetsuya Inazu, Shoichi Mizuno, et al.. (2025). Anti-sarcopenic effects of active vitamin D through modulation of anabolic and catabolic signaling pathways in human skeletal muscle: A randomized controlled trial. Metabolism. 168. 156240–156240. 1 indexed citations

Kawahara, Tetsuya. (2024). Prediabetes and insulin resistance: effect of vitamin D. Current Opinion in Clinical Nutrition & Metabolic Care. 27(6). 509–514.

Kawahara, Tetsuya, Yosuke Okada, & Yoshiya Tanaka. (2024). Vitamin D efficacy in type 1 and type 2 diabetes. Journal of Bone and Mineral Metabolism. 42(4). 438–446. 7 indexed citations

Pittas, Anastassios G., Tetsuya Kawahara, Rolf Jorde, et al.. (2023). Vitamin D and Risk for Type 2 Diabetes in People With Prediabetes. Annals of Internal Medicine. 176(3). 355–363. 93 indexed citations breakdown →

Kawahara, Tetsuya, Gen Suzuki, Tetsuya Inazu, et al.. (2016). Rationale and design of Diabetes Prevention with active Vitamin D (DPVD): a randomised, double-blind, placebo-controlled study. BMJ Open. 6(7). e011183–e011183. 19 indexed citations

Kawahara, Tetsuya, et al.. (2015). Incidence of Type 2 Diabetes in Pre-Diabetic Japanese Individuals Categorized by HbA1c Levels: A Historical Cohort Study. PLoS ONE. 10(4). e0122698–e0122698. 12 indexed citations

Maekawa, Satoshi, et al.. (2014). Retrospective study on the efficacy of a low-carbohydrate diet for impaired glucose tolerance. Diabetes Metabolic Syndrome and Obesity. 7. 195–195. 5 indexed citations

10.

Kawahara, Tetsuya, et al.. (2011). Effect of Atorvastatin and Etidronate Combination Therapy on Regression of Aortic Atherosclerotic Plaques Evaluated by Magnetic Resonance Imaging. Journal of Atherosclerosis and Thrombosis. 18(5). 384–395. 7 indexed citations

11.

Matsuoka, Toshiyuki, Tsutomu Kawata, Akifumi Kimura, et al.. (2011). Oral administration of the thrombin receptor antagonist E5555 (atopaxar) attenuates intimal thickening following balloon injury in rats. European Journal of Pharmacology. 666(1-3). 158–164. 15 indexed citations

12.

Matsuoka, Toshiyuki, et al.. (2011). The novel and orally active thrombin receptor antagonist E5555 (Atopaxar) inhibits arterial thrombosis without affecting bleeding time in guinea pigs. European Journal of Pharmacology. 657(1-3). 131–137. 38 indexed citations

13.

Okada, Yosuke, et al.. (2007). A case of blue rubber bleb nevus syndrome treated by etidronate. Journal of Bone and Mineral Metabolism. 25(2). 138–141. 4 indexed citations

14.

INAZU, T., Tetsuya Kawahara, & Isao Ishikawa. (2007). Rapid detection of R90H mutations in the human urate transporter 1 gene. Annals of Clinical Biochemistry International Journal of Laboratory Medicine. 44(2). 189–191. 3 indexed citations

15.

Matsuoka, Toshiyuki, Tsutomu Kawata, Akifumi Kimura, et al.. (2004). 1102-48 Inhibitory effect of E5555, an orally active thrombin receptor antagonist, on intimal hyperplasia following balloon injury. Journal of the American College of Cardiology. 43(5). A68–A68. 12 indexed citations

16.

Kawahara, Tetsuya, K. Okano, Hiromitsu Yokohama, et al.. (2004). Piperidine Carboxylic Acid Derivatives of 10H-Pyrazino[2,3-b][1,4]benzothiazine as Orally-Active Adhesion Molecule Inhibitors. Chemical and Pharmaceutical Bulletin. 52(6). 675–687. 9 indexed citations

17.

Kurita, Noriaki, et al.. (2002). Analysis of Defect Structure of the Proton-Conducting Oxide CaZr[sub 0.9]In[sub 0.1]O[sub 3−δ] by a DC Polarization Technique. Journal of The Electrochemical Society. 149(7). D104–D104. 9 indexed citations

18.

Kawamura, T., Shuichi Sakai, Seiichi Omura, et al.. (2002). Estrogen Inhibits Development of Yolk Veins and Causes Blood Clotting in Transgenic Medaka Fish Overexpressing Estrogen Receptor. ZOOLOGICAL SCIENCE. 19(12). 1355–1361. 10 indexed citations

19.

Kawahara, Tetsuya, Hisashi Okada, & Ichiro Yamashita. (2000). Cloning and Expression of Genomic and Complementary DNAs Encoding an Estrogen Receptor in the Medaka Fish, Oryzias latipes. ZOOLOGICAL SCIENCE. 17(5). 643–649. 15 indexed citations

20.

Suemune, Hiroshi, et al.. (1990). Highly enantioselective elimination of meso-compounds. Journal of the Chemical Society Perkin Transactions 1. 1663–1663. 6 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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