Nobumasa Ohara

705 total citations
46 papers, 495 citations indexed

About

Nobumasa Ohara is a scholar working on Endocrinology, Diabetes and Metabolism, Surgery and Genetics. According to data from OpenAlex, Nobumasa Ohara has authored 46 papers receiving a total of 495 indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Endocrinology, Diabetes and Metabolism, 12 papers in Surgery and 10 papers in Genetics. Recurrent topics in Nobumasa Ohara's work include Adrenal Hormones and Disorders (11 papers), Pituitary Gland Disorders and Treatments (8 papers) and Diet and metabolism studies (7 papers). Nobumasa Ohara is often cited by papers focused on Adrenal Hormones and Disorders (11 papers), Pituitary Gland Disorders and Treatments (8 papers) and Diet and metabolism studies (7 papers). Nobumasa Ohara collaborates with scholars based in Japan and United States. Nobumasa Ohara's co-authors include Hirohito Sone, Osamu Hanyu, Satoru Kodama, Chika Horikawa, Yoko Yachi, Shiro Tanaka, Kazuya Fujihara, Takaho Yamada, Satoshi Matsunaga and Sakiko Yoshizawa and has published in prestigious journals such as SHILAP Revista de lepidopterología, The American Journal of Cardiology and Sports Medicine.

In The Last Decade

Nobumasa Ohara

42 papers receiving 480 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Nobumasa Ohara Japan 12 194 112 101 79 77 46 495
Jae Hyuk Lee South Korea 14 271 1.4× 104 0.9× 86 0.9× 65 0.8× 100 1.3× 34 600
Miho Senda Japan 8 206 1.1× 93 0.8× 83 0.8× 50 0.6× 97 1.3× 17 472
Rong‐Rui Huo China 12 148 0.8× 172 1.5× 62 0.6× 49 0.6× 190 2.5× 35 588
Gennaro Martines Italy 12 100 0.5× 113 1.0× 222 2.2× 52 0.7× 151 2.0× 61 550
Eduardo Garcı́a Spain 8 150 0.8× 145 1.3× 113 1.1× 21 0.3× 144 1.9× 20 438
Giovanna Romanato Italy 16 100 0.5× 118 1.1× 130 1.3× 36 0.5× 144 1.9× 25 514
Lene Rørholm Pedersen Denmark 13 125 0.6× 81 0.7× 94 0.9× 33 0.4× 51 0.7× 18 462
Silvia Vichi Italy 8 181 0.9× 148 1.3× 99 1.0× 38 0.5× 122 1.6× 17 571
Alexia Rouland France 11 290 1.5× 100 0.9× 119 1.2× 52 0.7× 293 3.8× 29 618
C. Pichard France 9 89 0.5× 85 0.8× 52 0.5× 46 0.6× 42 0.5× 34 542

Countries citing papers authored by Nobumasa Ohara

Since Specialization
Citations

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

Fields of papers citing papers by Nobumasa Ohara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Nobumasa Ohara

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

All Works

20 of 20 papers shown
1.
Ohara, Nobumasa, Takashi Tani, Kenshi Terajima, et al.. (2024). Primary Aldosteronism and Hypokalemia-induced Rhabdomyolysis in a Patient with Aldosterone-producing Adenoma: A Case Report and Literature Review. Internal Medicine. 64(6). 871–879.
2.
Ohara, Nobumasa, Toshinori Takada, Yasuhiro Seki, Katsuhiko Akiyama, & Yuichiro Yoneoka. (2022). A 75-Year-Old Woman with a 5-Year History of Controlled Type 2 Diabetes Mellitus Presenting with Polydipsia and Polyuria and a Diagnosis of Central Diabetes Insipidus. American Journal of Case Reports. 24. e938482–e938482. 2 indexed citations
3.
Ohara, Nobumasa, et al.. (2020). Isolated Adrenocorticotropic Hormone Deficiency and Primary Hypothyroidism in a Patient Undergoing Long-Term Hemodialysis: A Case Report and Literature Review. American Journal of Case Reports. 21. e922376–e922376. 3 indexed citations
4.
Ohara, Nobumasa, Masanori Kaneko, Hajime Ishiguro, et al.. (2018). A case of normotensive incidentally discovered adrenal pheochromocytoma. Clinical Case Reports. 6(12). 2303–2308. 6 indexed citations
5.
Ohara, Nobumasa, et al.. (2018). Glutamic Acid Decarboxylase Autoantibody-negative Slowly Progressive Type 1 Diabetes Mellitus: A Case Report and Literature Review. Internal Medicine. 57(24). 3581–3587. 1 indexed citations
6.
Ohara, Nobumasa, Kazumasa Ohashi, Yuichiro Yoneoka, et al.. (2017). Isolated Adrenocorticotropin Deficiency due to Nivolumab-induced Hypophysitis in a Patient with Advanced Lung Adenocarcinoma: A Case Report and Literature Review. Internal Medicine. 57(4). 527–535. 35 indexed citations
7.
Ohara, Nobumasa, Ryo Koda, Hirofumi Watanabe, et al.. (2017). Generalized Status Epilepticus in a Patient with Acute-onset Type 1 Diabetes Mellitus Associated with Severe Kidney Dysfunction: A Case Report and Literature Review. Internal Medicine. 56(15). 1993–1999. 1 indexed citations
8.
Ohara, Nobumasa, Yuichiro Yoneoka, Yasuhiro Seki, et al.. (2017). Acute hypopituitarism associated with periorbital swelling and cardiac dysfunction in a patient with pituitary tumor apoplexy: a case report. Journal of Medical Case Reports. 11(1). 235–235. 1 indexed citations
9.
Ohara, Nobumasa, Masanori Kaneko, Masaru Kitazawa, et al.. (2017). Persistent Graves’ hyperthyroidism despite rapid negative conversion of thyroid-stimulating hormone-binding inhibitory immunoglobulin assay results: a case report. Journal of Medical Case Reports. 11(1). 32–32. 1 indexed citations
10.
Kodama, Satoru, Kazuya Fujihara, Hajime Ishiguro, et al.. (2016). Quantitative assessment of genetic testing for type 2 diabetes mellitus based on findings of genome-wide association studies. Annals of Epidemiology. 26(11). 816–818.e6. 1 indexed citations
11.
Ohara, Nobumasa, Masanori Kaneko, Masahiro Ikeda, et al.. (2016). Lung adenocarcinoma and adrenocortical carcinoma in a patient with multiple endocrine neoplasia type 1. Respiratory Medicine Case Reports. 20. 77–81. 3 indexed citations
12.
13.
Ohara, Nobumasa, Masanori Kaneko, Naoko Sato, et al.. (2015). Type 1 Diabetes Mellitus and Pernicious Anemia in an Elderly Japanese Patient: A Case Report and Literature Review. Internal Medicine. 54(18). 2361–2365. 4 indexed citations
14.
Ohara, Nobumasa, Hiroshi Suzuki, Akiko Suzuki, et al.. (2014). Reversible brain atrophy and cognitive impairment in an adolescent Japanese patient with primary adrenal Cushing’s syndrome. Neuropsychiatric Disease and Treatment. 10. 1763–1763. 8 indexed citations
15.
Kodama, Satoru, Chika Horikawa, Kazuya Fujihara, et al.. (2013). Meta-Analysis of the Quantitative Relation Between Pulse Pressure and Mean Arterial Pressure and Cardiovascular Risk in Patients With Diabetes Mellitus. The American Journal of Cardiology. 113(6). 1058–1065. 36 indexed citations
16.
Ohara, Nobumasa, Osamu Hanyu, Satoshi Hirayama, et al.. (2013). Hypertension increases urinary excretion of immunoglobulin G, ceruloplasmin and transferrin in normoalbuminuric patients with type 2 diabetes mellitus. Journal of Hypertension. 32(2). 432–438. 15 indexed citations
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Ohara, Nobumasa, et al.. (2006). Femoral arteriovenous fistula: a complication of temporary hemodialysis catheter placement. Journal of Artificial Organs. 9(2). 114–117. 8 indexed citations
20.
Ohara, Nobumasa, Osamu Tominaga, Makoto Uchiyama, & Hajime Nakano. (1997). A Case of Advanced Gastric Cancer Resembling Submucosal Tumor of the Stomach. Japanese Journal of Clinical Oncology. 27(6). 423–426. 13 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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