MASAKUNI OKUHARA

7.1k total citations · 2 hit papers
113 papers, 5.7k citations indexed

About

MASAKUNI OKUHARA is a scholar working on Molecular Biology, Pharmacology and Organic Chemistry. According to data from OpenAlex, MASAKUNI OKUHARA has authored 113 papers receiving a total of 5.7k indexed citations (citations by other indexed papers that have themselves been cited), including 60 papers in Molecular Biology, 44 papers in Pharmacology and 24 papers in Organic Chemistry. Recurrent topics in MASAKUNI OKUHARA's work include Microbial Natural Products and Biosynthesis (37 papers), Fungal Biology and Applications (16 papers) and Steroid Chemistry and Biochemistry (11 papers). MASAKUNI OKUHARA is often cited by papers focused on Microbial Natural Products and Biosynthesis (37 papers), Fungal Biology and Applications (16 papers) and Steroid Chemistry and Biochemistry (11 papers). MASAKUNI OKUHARA collaborates with scholars based in Japan. MASAKUNI OKUHARA's co-authors include MASANOBU KOHSAKA, Toshio Goto, HATSUO AOKI, Hiroshi Imanaka, Michihisa Nishiyama, Hiroshi Hatanaka, Toru Kino, Hidenori Nakajima, Yasuhiro Hori and Hiroshi Terano and has published in prestigious journals such as Annual Review of Microbiology, British Journal of Pharmacology and Molecular Pharmacology.

In The Last Decade

MASAKUNI OKUHARA

113 papers receiving 5.5k citations

Hit Papers

FK-506, a novel immunosuppressant isolated from a Strepto... 1987 2026 2000 2013 1987 1987 250 500 750
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.

  1. FK-506, a novel immunosuppressant isolated from a Streptomyces. I. Fermentation, isolation, and physico-chemical and biological characteristics.
    1987 980 citations Hiroshi Hatanaka, Toshio Goto et al. The Journal of Antibiotics profile →
  2. FK-506, a novel immunosuppressant isolated from a Streptomyces. II. Immunosuppressive effect of FK-506 in vitro.
    1987 972 citations Hiroshi Hatanaka, Susumu Miyata et al. The Journal of Antibiotics profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
MASAKUNI OKUHARA Japan 35 3.0k 1.2k 1.2k 643 601 113 5.7k
MASANOBU KOHSAKA Japan 39 3.0k 1.0× 1.5k 1.2× 1.6k 1.4× 548 0.9× 509 0.8× 138 5.9k
HATSUO AOKI Japan 30 2.2k 0.7× 1.1k 0.9× 1.2k 1.0× 561 0.9× 388 0.6× 89 4.5k
Toshihiko Hirano Japan 33 2.0k 0.7× 467 0.4× 273 0.2× 524 0.8× 474 0.8× 205 4.3k
Jun‐ichi Sawada Japan 44 3.4k 1.1× 665 0.6× 254 0.2× 481 0.7× 1.9k 3.2× 205 6.8k
Masaaki Ishizuka Japan 35 2.0k 0.7× 919 0.8× 963 0.8× 406 0.6× 853 1.4× 141 4.0k
Alakananda Basu United States 36 3.3k 1.1× 209 0.2× 386 0.3× 305 0.5× 1.4k 2.3× 109 5.1k
Masaaki Toda Japan 31 1.2k 0.4× 462 0.4× 988 0.9× 3.1k 4.9× 704 1.2× 194 6.1k
I Pastan United States 29 4.7k 1.6× 483 0.4× 261 0.2× 499 0.8× 8.4k 14.0× 48 10.8k
Edith Sim United Kingdom 50 4.5k 1.5× 445 0.4× 437 0.4× 995 1.5× 665 1.1× 184 7.9k
Shigeru Tsukagoshi Japan 32 2.7k 0.9× 491 0.4× 759 0.7× 283 0.4× 3.0k 5.0× 144 5.4k

Countries citing papers authored by MASAKUNI OKUHARA

Since Specialization
Citations

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

Fields of papers citing papers by MASAKUNI OKUHARA

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of MASAKUNI OKUHARA

This figure shows the co-authorship network connecting the top 25 collaborators of MASAKUNI OKUHARA. A scholar is included among the top collaborators of MASAKUNI OKUHARA 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 MASAKUNI OKUHARA. MASAKUNI OKUHARA 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.
Fujie, Akihiko, TOSHIRO IWAMOTO, Hideyuki Muramatsu, et al.. (2000). FR901469, a Novel Antifungal Antibiotic from an Unidentified Fungus No. 11243. I. Taxonomy, Fermentation, Isolation, Physico-chemical Properties and Biological Properties.. The Journal of Antibiotics. 53(9). 912–919. 44 indexed citations
2.
Fujie, Akihiko, TOSHIRO IWAMOTO, Hideyuki Muramatsu, et al.. (2000). FR901469, a Novel Antifungal Antibiotic from an Unidentified Fungus No. 11243. II. In Vitro and In Vivo Activities.. The Journal of Antibiotics. 53(9). 920–927. 28 indexed citations
3.
Inamura, Noriaki, et al.. (1999). Release of neutrophil elastase and its role in tissue injury in acute inflammation: effect of the elastase inhibitor, FR134043. European Journal of Pharmacology. 374(1). 117–125. 52 indexed citations
4.
Yamazaki, Akiko, Noriaki Inamura, Masanori Okamoto, et al.. (1998). Biochemical and pharmacological characterization of FR134043, a novel elastase inhibitor. European Journal of Pharmacology. 345(3). 299–308. 17 indexed citations
5.
Yamamoto, N., et al.. (1997). FR167653, a dual inhibitor of interleukin-1 and tumor necrosis factor-α, ameliorates endotoxin-induced shock. European Journal of Pharmacology. 327(2-3). 169–174. 66 indexed citations
6.
Hagihara, Hiroyuki, et al.. (1996). Plasma Cholesterol Reducing Effect of FR129169, a Novel Acyl-CoA:Cholesterol Acyltransferase Inhibitor, in the Rat. The Japanese Journal of Pharmacology. 70(1). 35–41. 13 indexed citations
7.
Nakajima, Hidenori, Yasuhiro Hori, Hiroshi Terano, et al.. (1996). New Antitumor Substances, FR901463, FR901464 and FR901465. II. Activities against Experimental Tumors in Mice and Mechanism of Action.. The Journal of Antibiotics. 49(12). 1204–1211. 186 indexed citations
8.
Hori, Yasuhiro, Yukiko Yamagishi, Takashi Fujita, et al.. (1995). A New Aromatase Inhibitor, FR901537. I. Taxonomy, Fermentation, Isolation, Physicochemical Characteristics and Biological Activities.. The Journal of Antibiotics. 48(8). 757–762. 5 indexed citations
9.
Hirosumi, Jiro, Noboru Chida, Masamichi Inami, et al.. (1995). FK143, a novel nonsteroidal inhibitor of steroid 5α-reductase: (1) In vitro effects on human and animal prostatic enzymes. The Journal of Steroid Biochemistry and Molecular Biology. 52(4). 357–363. 61 indexed citations
10.
Hirosumi, Jiro, Noboru Chida, Masamichi Inami, et al.. (1995). FK143, a novel nonsteroidal inhibitor of steroid 5α-reductase: (2) In vivo effects on rat and dog prostates. The Journal of Steroid Biochemistry and Molecular Biology. 52(4). 365–373. 23 indexed citations
11.
Sakamoto, Kazutoshi, et al.. (1995). A New Assay Method for Immunosuppressants with a Tacrolimus (FK506)-Like Mode of Action.. The Journal of Antibiotics. 48(7). 727–729. 6 indexed citations
12.
IWAMOTO, TOSHIRO, et al.. (1994). WF11899A, B and C, novel antifungal lipopeptides. II. Biological properties.. The Journal of Antibiotics. 47(10). 1092–1097. 48 indexed citations
13.
Hori, Yasuhiro, Shigehiro Takase, Nobuharu Shigematsu, et al.. (1993). R1128 substances, novel non-steroidal estrogen-receptor antagonists produced by a Streptomyces. II. Physico-chemical properties and structure determination.:II. PHYSICO-CHEMICAL PROPERTIES AND STRUCTURE DETERMINATION. The Journal of Antibiotics. 46(7). 1063–1068. 6 indexed citations
14.
Miyata, Susumu, Masami Ezaki, Shigehiro Takase, et al.. (1992). WS009 A and B, new endothelin receptor antagonists isolated from Streptomyces sp. No. 89009. I. Taxonomy, fermentation, isolation, physico-chemical properties and biological activities.. The Journal of Antibiotics. 45(7). 1029–1040. 22 indexed citations
15.
Hatanaka, Hiroshi, TOHRU KINO, Masayuki Asano, et al.. (1989). FK-506 related compounds produced by Streptomyces tsukubaensis No.9993.. The Journal of Antibiotics. 42(4). 620–622. 23 indexed citations
16.
Ando, Takeshi, Keizo Yoshida, & MASAKUNI OKUHARA. (1988). Vinigrol, a novel antihypertensive and platelet aggregation inhibitory agent produced by a fungus, Virgaria nigra. II. Pharmacological characteristics.. The Journal of Antibiotics. 41(1). 31–35. 49 indexed citations
17.
TSURUMI, YASUHISA, MASAKUNI OKUHARA, & Kozo Ochi. (1988). Changes in nucleotide pools during conidia formation ofPenicillium chrysogenumin solid culture. FEMS Microbiology Letters. 52(3). 265–268. 2 indexed citations
18.
Ando, Takeshi, Satoshi Okada, Itsuo Uchida, et al.. (1987). WF-10129, a novel angiotensin converting enzyme inhibitor produced by a fungus, Doratomyces putredinis.. The Journal of Antibiotics. 40(4). 468–475. 7 indexed citations
19.
Izumi, Shizue, Hirotsugu Ueda, MASAKUNI OKUHARA, HATSUO AOKI, & Yûichi Yamamura. (1986). Effect of Nocardia rubra cell wall skeleton on murine interferon production in vitro.. PubMed. 46(4 Pt 2). 1960–5. 23 indexed citations
20.
Iguchi, Eiko, MASAKUNI OKUHARA, MASANOBU KOHSAKA, HATSUO AOKI, & Hiroshi Imanaka. (1980). Studies on new phosphonic acid antibiotics. II. Taxonomic studies on producing organisms of the phosphonic acid and related compounds.:II. TAXONOMIC STUDIES ON PRODUCING ORGANISMS OF THE PHOSPHONIC ACID AND RELATED COMPOUNDS. The Journal of Antibiotics. 33(1). 18–23. 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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