Yoichi Koizumi

1.1k total citations
29 papers, 848 citations indexed

About

Yoichi Koizumi is a scholar working on Endocrinology, Diabetes and Metabolism, Molecular Biology and Surgery. According to data from OpenAlex, Yoichi Koizumi has authored 29 papers receiving a total of 848 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Endocrinology, Diabetes and Metabolism, 11 papers in Molecular Biology and 7 papers in Surgery. Recurrent topics in Yoichi Koizumi's work include Thyroid Disorders and Treatments (11 papers), Growth Hormone and Insulin-like Growth Factors (7 papers) and Genomics, phytochemicals, and oxidative stress (4 papers). Yoichi Koizumi is often cited by papers focused on Thyroid Disorders and Treatments (11 papers), Growth Hormone and Insulin-like Growth Factors (7 papers) and Genomics, phytochemicals, and oxidative stress (4 papers). Yoichi Koizumi collaborates with scholars based in Japan, United States and United Kingdom. Yoichi Koizumi's co-authors include Kozo Shaura, Shoichiro Tsugane, Yoshio Kasuga, S. Natsukawa, Tomoyuki Hanaoka, Takashi Yamada, Tetsuya Otani, Toru Aizawa, Minatsu Kobayashi and Nobuyuki Takasu and has published in prestigious journals such as The Journal of Clinical Endocrinology & Metabolism, Diabetes Care and The American Journal of Medicine.

In The Last Decade

Yoichi Koizumi

28 papers receiving 804 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Yoichi Koizumi Japan	17	295	259	238	121	113	29	848
D. H. Alpers United States	14	299 1.0×	173 0.7×	284 1.2×	49 0.4×	115 1.0×	19	759
Hans Ditschuneit Germany	18	155 0.5×	476 1.8×	250 1.1×	60 0.5×	104 0.9×	26	950
C.‐H. Florén Sweden	18	138 0.5×	429 1.7×	156 0.7×	121 1.0×	234 2.1×	47	996
Yuichi Yamazaki Japan	17	165 0.6×	296 1.1×	233 1.0×	53 0.4×	69 0.6×	75	1.0k
Gregorio Castellano Spain	15	229 0.8×	139 0.5×	239 1.0×	56 0.5×	51 0.5×	28	1.1k
Enver Dolar Türkiye	15	199 0.7×	279 1.1×	177 0.7×	66 0.5×	71 0.6×	53	943
Toshihide Okada Japan	18	343 1.2×	180 0.7×	136 0.6×	112 0.9×	46 0.4×	45	1.2k
Yaşar Çolak Türkiye	19	296 1.0×	163 0.6×	146 0.6×	75 0.6×	42 0.4×	55	1.0k
Miwa Kawanaka Japan	22	423 1.4×	228 0.9×	204 0.9×	48 0.4×	45 0.4×	77	1.7k
E. Alt United States	11	156 0.5×	233 0.9×	235 1.0×	31 0.3×	96 0.8×	24	810

Countries citing papers authored by Yoichi Koizumi

Since Specialization

Citations

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

Fields of papers citing papers by Yoichi Koizumi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Yoichi Koizumi

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

Kobayashi, Yuya, et al.. (2017). Pseudohypoparathyroidism Causing Multiple Brain Calcifications. Internal Medicine. 57(1). 153–154. 3 indexed citations

Tomita, Takeshi, Yuji Kamijo, Makoto Higuchi, et al.. (2012). Hemodialysis-Induced P-Wave Signal-Averaged Electrocardiogram Alterations Are Indicative of Vulnerability to Atrial Arrhythmias. Circulation Journal. 76(3). 612–617. 8 indexed citations

Kobayashi, Minatsu, Tetsuya Otani, Motoki Iwasaki, et al.. (2009). Association between dietary heterocyclic amine levels, genetic polymorphisms of NAT2, CYP1A1, and CYP1A2 and risk of colorectal cancer: A hospital-based case-control study in Japan. Scandinavian Journal of Gastroenterology. 44(8). 952–959. 35 indexed citations

Kobayashi, Minatsu, Tetsuya Otani, Motoki Iwasaki, et al.. (2009). Association between dietary heterocyclic amine levels, genetic polymorphisms of NAT2, CYP1A1, and CYP1A2 and risk of stomach cancer: a hospital-based case-control study in Japan. Gastric Cancer. 12(4). 198–205. 23 indexed citations

Ikeda, Shinobu, Shizuka Sasazuki, S. Natsukawa, et al.. (2008). Screening of 214 Single Nucleotide Polymorphisms in 44 Candidate Cancer Susceptibility Genes: A Case–Control Study on Gastric and Colorectal Cancers in the Japanese Population. The American Journal of Gastroenterology. 103(6). 1476–1487. 24 indexed citations

Sasazuki, Shizuka, Manami Inoue, S. Natsukawa, et al.. (2007). Atrophic Gastritis, Helicobacter pylori, and Colorectal Cancer Risk: A Case‐Control Study. Helicobacter. 12(4). 328–332. 49 indexed citations

Hashizume, Kiyoshi, Satoru Suzuki, Teiji Takeda, et al.. (2006). Endocrinological aspects of aging: Adaptation to and acceleration of aging by the endocrine system. Geriatrics and gerontology international. 6(1). 1–6. 1 indexed citations

Otani, Tetsuya, Motoki Iwasaki, Tomoyuki Hanaoka, et al.. (2005). Folate, Vitamin B₆, Vitamin B₁₂, and Vitamin B₂Intake, Genetic Polymorphisms of Related Enzymes, and Risk of Colorectal Cancer in a Hospital-Based Case-Control Study in Japan. Nutrition and Cancer. 53(1). 42–50. 81 indexed citations

Sasazuki, Shizuka, Manami Inoue, S. Natsukawa, et al.. (2004). Association of Helicobacter pylori infection and environmental factors in non-cardia gastric cancer in Japan. Gastric Cancer. 7(1). 46–53. 104 indexed citations

10.

Sainokami, Shigehiko, Koichi Abe, Ryujin Endo, et al.. (2004). Epidemiological and clinical study of sporadic acute hepatitis E caused by indigenous strains of hepatitis E virus in Japan compared with acute hepatitis A. Journal of Gastroenterology. 39(7). 640–648. 42 indexed citations

11.

Tsukino, Hiromasa, Tomoyuki Hanaoka, Tetsuya Otani, et al.. (2004). hOGGl Ser326Cys polymorphism, interaction with environmental exposures, and gastric cancer risk in Japanese populations. Cancer Science. 95(12). 977–983. 61 indexed citations

12.

Hara, Megumi, Tomoyuki Hanaoka, Minatsu Kobayashi, et al.. (2003). Cruciferous Vegetables, Mushrooms, and Gastrointestinal Cancer Risks in a Multicenter, Hospital-Based Case-Control Study in Japan. Nutrition and Cancer. 46(2). 138–147. 83 indexed citations

13.

Aizawa, Toru, et al.. (1994). Age‐Related Therapeutic Response to Antithyroid Drug in Patients with Hyperthyroid Graves' Disease. Journal of the American Geriatrics Society. 42(5). 513–516. 33 indexed citations

14.

Aizawa, Toru, Masaki Ishihara, Yoichi Koizumi, et al.. (1990). Serum thyroglobulin concentration as an indicator for assessing thyroid stimulation in patients with graves' disease during antithyroid drug therapy. The American Journal of Medicine. 89(2). 175–180. 16 indexed citations

15.

Aizawa, Toru, et al.. (1989). Presence of anti-DNA antibody in diabetes mellitus: Its relation to the duration of diabetes and diabetic complications. Metabolism. 38(9). 891–894. 10 indexed citations

16.

Murakami, Manabu, Yoichi Koizumi, Toru Aizawa, et al.. (1988). Studies of Thyroid Function and Immune Parameters in Patients with Hyperthyroid Graves' Disease in Remission*. The Journal of Clinical Endocrinology & Metabolism. 66(1). 103–108. 27 indexed citations

17.

Yamada, Takashi, Yoichi Koizumi, Akira Sato, et al.. (1984). Reappraisal of the 3,5,3′-Triiodothyronine-Suppression Test in the Prediction of Long Term Outcome of Antithyroid Drug Therapy in Patients with Hyperthyroid Graves’ Disease. The Journal of Clinical Endocrinology & Metabolism. 58(4). 676–680. 28 indexed citations

18.

Yamada, Takashi, Nobuyuki Takasu, Akira Sato, Toru Aizawa, & Yoichi Koizumi. (1982). Pituitary-Thyroid Feedback Regulation in Patients with Graves' Disease during Antithyroid Drug Therapy*. The Journal of Clinical Endocrinology & Metabolism. 54(1). 83–88. 18 indexed citations

19.

Kawabe, Tetsuya, Ichiro Komiya, Toyoshi Endo, Yoichi Koizumi, & Takashi Yamada. (1979). Hyperthyroidism in the Elderly. Journal of the American Geriatrics Society. 27(4). 152–155. 32 indexed citations

20.

Koizumi, Yoichi, et al.. (1978). Difference in Pituitary-Thyroid Feedback Regulation in Hypothyroid Patients, Depending on the Severity of Hypothyroidism. The Journal of Clinical Endocrinology & Metabolism. 47(3). 560–565. 24 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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