Ken-ichi Ohyama

835 total citations
16 papers, 677 citations indexed

About

Ken-ichi Ohyama is a scholar working on Health, Toxicology and Mutagenesis, Cancer Research and Environmental Chemistry. According to data from OpenAlex, Ken-ichi Ohyama has authored 16 papers receiving a total of 677 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Health, Toxicology and Mutagenesis, 5 papers in Cancer Research and 3 papers in Environmental Chemistry. Recurrent topics in Ken-ichi Ohyama's work include Effects and risks of endocrine disrupting chemicals (6 papers), Toxic Organic Pollutants Impact (6 papers) and Carcinogens and Genotoxicity Assessment (5 papers). Ken-ichi Ohyama is often cited by papers focused on Effects and risks of endocrine disrupting chemicals (6 papers), Toxic Organic Pollutants Impact (6 papers) and Carcinogens and Genotoxicity Assessment (5 papers). Ken-ichi Ohyama collaborates with scholars based in Japan, Sri Lanka and Hungary. Ken-ichi Ohyama's co-authors include Fumiko Nagai, Shozo Yamada, Toshiaki Sano, Mitsuru Iida, K Satoh, Naoto Aoki, Yuki Tsuchiya, Kanako Satoh, Akio Ogata and Koji Morita and has published in prestigious journals such as Environmental Health Perspectives, Neurosurgery and Cancer Letters.

In The Last Decade

Ken-ichi Ohyama

16 papers receiving 657 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ken-ichi Ohyama Japan	11	308	262	139	137	84	16	677
Luca Olgiati Italy	14	119 0.4×	272 1.0×	138 1.0×	17 0.1×	56 0.7×	25	512
Icela Palma‐Lara Mexico	11	149 0.5×	32 0.1×	63 0.5×	71 0.5×	59 0.7×	34	661
Zixuan Zhao China	13	87 0.3×	35 0.1×	42 0.3×	99 0.7×	65 0.8×	66	607
Denis Malaise France	8	172 0.6×	34 0.1×	68 0.5×	68 0.5×	30 0.4×	21	502
Lianju Shen China	16	481 1.6×	19 0.1×	75 0.5×	227 1.7×	103 1.2×	45	1.0k
Yining Qiu United States	10	164 0.5×	37 0.1×	63 0.5×	70 0.5×	33 0.4×	15	548
Jiajia Ji China	13	118 0.4×	46 0.2×	39 0.3×	30 0.2×	55 0.7×	40	529
Yong Pu United States	16	307 1.0×	35 0.1×	70 0.5×	58 0.4×	79 0.9×	34	835
Jiamin Zeng China	12	36 0.1×	46 0.2×	57 0.4×	128 0.9×	21 0.3×	30	436
Hisayo Kubota Japan	14	176 0.6×	37 0.1×	24 0.2×	21 0.2×	45 0.5×	25	457

Countries citing papers authored by Ken-ichi Ohyama

Since Specialization

Citations

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

Fields of papers citing papers by Ken-ichi Ohyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ken-ichi Ohyama. 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 Ken-ichi Ohyama. The network helps show where Ken-ichi Ohyama may publish in the future.

Co-authorship network of co-authors of Ken-ichi Ohyama

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

All Works

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16 of 16 papers shown

Ogata, Akio, Kanako Satoh, Toyohito Tanaka, et al.. (2012). <i>In Vivo</i> Screening of Illegal Drug. YAKUGAKU ZASSHI. 133(1). 25–29. 1 indexed citations

Fujitani, Tomoko, Ken-ichi Ohyama, Akihiko Hirose, et al.. (2012). Teratogenicity of multi-wall carbon nanotube (MWCNT) in ICR mice. The Journal of Toxicological Sciences. 37(1). 81–89. 41 indexed citations

Yamaguchi, Atsumi, Tomoko Fujitani, Ken-ichi Ohyama, et al.. (2012). Effects of sustained stimulation with multi-wall carbon nanotubes on immune and inflammatory responses in mice. The Journal of Toxicological Sciences. 37(1). 177–189. 36 indexed citations

Yamada, Shozo, Noriaki Fukuhara, & Ken-ichi Ohyama. (2010). Multidisciplinary Treatment for Non-functioning Giant Pituitary Adenomas(<SPECIAL ISSUE>Therapy for Tumors in Diencephalon and Pituitary). Japanese Journal of Neurosurgery. 19(9). 658–665. 1 indexed citations

Sano, Toshiaki, Ken-ichi Ohyama, Eiji Kudo, et al.. (2008). Clinicopathological Features of Growth Hormone-producing Pituitary Adenomas: Difference among Various Types Defined by Cytokeratin Distribution Pattern Including a Transitional Form. Endocrine Pathology. 19(2). 82–91. 140 indexed citations

Satoh, Kanako, Ryouichi Nonaka, Ken-ichi Ohyama, et al.. (2008). Endocrine Disruptive Effects of Chemicals Eluted from Nitrile-Butadiene Rubber Gloves Using Reporter Gene Assay Systems. Biological and Pharmaceutical Bulletin. 31(3). 375–379. 18 indexed citations

Yamada, Shozo, Ken-ichi Ohyama, Manabu Taguchi, et al.. (2007). A STUDY OF THE CORRELATION BETWEEN MORPHOLOGICAL FINDINGS AND BIOLOGICAL ACTIVITIES IN CLINICALLY NONFUNCTIONING PITUITARY ADENOMAS. Neurosurgery. 61(3). 580–585. 119 indexed citations

Ohyama, Ken-ichi, Kanako Satoh, Yoshimitsu Sakamoto, Akio Ogata, & Fumiko Nagai. (2007). Effects of prenatal exposure to styrene trimers on genital organs and hormones in male rats.. PubMed. 232(2). 301–8. 21 indexed citations

Satoh, Kanako, et al.. (2005). Androgenic and Antiandrogenic Effects of Alkylphenols and Parabens Assessed Using the Reporter Gene Assay with Stably Transfected CHO-K1 Cells (AR-EcoScreen System). JOURNAL OF HEALTH SCIENCE. 51(5). 557–568. 62 indexed citations

10.

Satoh, K, Ken-ichi Ohyama, Naoto Aoki, Mitsuru Iida, & Fumiko Nagai. (2004). Study on anti-androgenic effects of bisphenol a diglycidyl ether (BADGE), bisphenol F diglycidyl ether (BFDGE) and their derivatives using cells stably transfected with human androgen receptor, AR-EcoScreen. Food and Chemical Toxicology. 42(6). 983–993. 122 indexed citations

11.

Ohyama, Ken-ichi & Fumiko Nagai. (2002). Estrogenicity of Styrene Oligomers: Response to Ohno etal.. Environmental Health Perspectives. 110(7). A385–A386. 1 indexed citations

12.

Ohyama, Ken-ichi, et al.. (2001). Certain Styrene Oligomers Have Proliferative Activity on MCF-7 Human Breast Tumor Cells and Binding Affinity for Human Estrogen Receptor a. Environmental Health Perspectives. 109(7). 699–699. 9 indexed citations

13.

Ohyama, Ken-ichi, Fumiko Nagai, & Yuki Tsuchiya. (2001). Certain styrene oligomers have proliferative activity on MCF-7 human breast tumor cells and binding affinity for human estrogen receptor.. Environmental Health Perspectives. 109(7). 699–703. 69 indexed citations

14.

Ohyama, Ken-ichi, et al.. (1999). The roles of diesel exhaust particle extracts and the promotive effects of NO 2 and/or SO 2 exposure on rat lung tumorigenesis. Cancer Letters. 139(2). 189–197. 22 indexed citations

15.

Ohyama, Ken-ichi. (1993). Studies on Lung Tumorigenesis in F344 Rats Intratracheally Instilled Airborne Particles Extracts into and Exposed to NO2·SO2. Journal of Japan Society of Air Pollution. 28(4). 210–219. 2 indexed citations

16.

Sasaki, Yuko, et al.. (1987). Carcinogenicity of Extract of Airborne Particles Using Newborn Mice and Comparative Study of Carcinogenic and Mutagenic Effect of the Extract. Archives of Environmental Health An International Journal. 42(1). 14–18. 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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