Y Ashitaka

481 total citations
28 papers, 331 citations indexed

About

Y Ashitaka is a scholar working on Public Health, Environmental and Occupational Health, Pediatrics, Perinatology and Child Health and Endocrinology, Diabetes and Metabolism. According to data from OpenAlex, Y Ashitaka has authored 28 papers receiving a total of 331 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Public Health, Environmental and Occupational Health, 6 papers in Pediatrics, Perinatology and Child Health and 5 papers in Endocrinology, Diabetes and Metabolism. Recurrent topics in Y Ashitaka's work include Gestational Trophoblastic Disease Studies (6 papers), Ectopic Pregnancy Diagnosis and Management (5 papers) and Birth, Development, and Health (5 papers). Y Ashitaka is often cited by papers focused on Gestational Trophoblastic Disease Studies (6 papers), Ectopic Pregnancy Diagnosis and Management (5 papers) and Birth, Development, and Health (5 papers). Y Ashitaka collaborates with scholars based in Japan and United States. Y Ashitaka's co-authors include S Tojo, Akira Kobata, Matsuto Mochizuki, Ryuichiro Nishimura, Takeshi Maruo, R Nishimura, Yuki Endo, K Tanabe, H Nishii and S. S. Koide and has published in prestigious journals such as Endocrinology, Fertility and Sterility and Experimental Biology and Medicine.

In The Last Decade

Y Ashitaka

27 papers receiving 314 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Y Ashitaka Japan 11 129 99 75 73 69 28 331
F.R. Carman United States 10 85 0.7× 78 0.8× 43 0.6× 57 0.8× 111 1.6× 14 369
Gbolagade O. Babalola United States 8 259 2.0× 99 1.0× 39 0.5× 125 1.7× 43 0.6× 12 504
G. Bettendorf Germany 12 71 0.6× 157 1.6× 92 1.2× 19 0.3× 261 3.8× 69 441
NP Groome United Kingdom 10 220 1.7× 165 1.7× 49 0.7× 123 1.7× 172 2.5× 18 504
G. Yedwab Israel 10 48 0.4× 110 1.1× 12 0.2× 53 0.7× 124 1.8× 24 315
Chandrashekara Kyathanahalli United States 13 186 1.4× 41 0.4× 52 0.7× 43 0.6× 39 0.6× 24 448
Stephanie Sander Westphalen Germany 5 80 0.6× 88 0.9× 70 0.9× 58 0.8× 185 2.7× 7 391
J. Hurwitz United States 12 246 1.9× 28 0.3× 23 0.3× 92 1.3× 15 0.2× 13 451
Benjamin Goldberg United States 11 47 0.4× 62 0.6× 46 0.6× 22 0.3× 131 1.9× 30 329
S. Muttukrishna United Kingdom 9 225 1.7× 192 1.9× 63 0.8× 98 1.3× 137 2.0× 10 431

Countries citing papers authored by Y Ashitaka

Since Specialization
Citations

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

Fields of papers citing papers by Y Ashitaka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Y Ashitaka

This figure shows the co-authorship network connecting the top 25 collaborators of Y Ashitaka. A scholar is included among the top collaborators of Y Ashitaka 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 Y Ashitaka. Y Ashitaka 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.
2.
Ashitaka, Y, et al.. (1988). 3,5,3'-Triiodo-L-Thyronine Binding Sites in Nuclei of Human Trophoblastic Cells.. Endocrinologia Japonica. 35(2). 197–206. 19 indexed citations
3.
Nakayama, Hiroshi, et al.. (1986). [Studies on the relationship between reproductive phenomena and thyroid function--dynamics of the concentrations of thyroid hormones in pregnancy, parturition and puerperium].. PubMed. 38(9). 1578–86. 3 indexed citations
4.
Matsuura, Shuji, et al.. (1983). Effective extraction and radioimmunoassay of chorionic gonadotropin in human urine.. PubMed. 35(1). 83–7. 1 indexed citations
5.
Suzuki, Ayako, et al.. (1983). [Tumor markers in gynecologic malignancies].. PubMed. 29(6). 678–83. 1 indexed citations
6.
Otani, Tetsuo, Takeshi Maruo, Y Ashitaka, & S Tojo. (1982). Multiple inhibitory effects of a lutenizing hormone-releasing hormone agonist on hCG-dependent steroidogenesis and on FSH-dependent responses in ovarian cells in vivo and in vitro.. Endocrinologia Japonica. 29(5). 597–605. 12 indexed citations
7.
Nishimura, Ryuichiro, et al.. (1982). The characterization of alpha-subunit of glycoprotein hormone produced by undifferentiated carcinoma.. Endocrinologia Japonica. 29(1). 11–19. 4 indexed citations
8.
Ashitaka, Y, et al.. (1981). Effects of surgical treatment and chemotherapy upon choriocarcinoma and its clinical courses. 16(4). 704–712.
9.
Takemori, Masayuki, Ryuichiro Nishimura, Y Ashitaka, & S Tojo. (1981). Release of human chorionic gonadotropic (hCG) and its alpha-subunit (hCG-.ALPHA.) from perifused human placenta.. Endocrinologia Japonica. 28(6). 757–768. 12 indexed citations
10.
Nishimura, R, Yuki Endo, K Tanabe, Y Ashitaka, & S Tojo. (1981). The biochemical properties of urinary human chorionic gonadotropin from the patients with trophoblastic diseases. Journal of Endocrinological Investigation. 4(3). 349–358. 36 indexed citations
11.
Ashitaka, Y, et al.. (1980). Structures of the Asparagine-Linked Sugar Chains of Human Chorionic Gonadotropin. PubMed. 85(3). 127–145. 91 indexed citations
12.
Tojo, S, et al.. (1977). Large immunologic species of human chorionic gonadotropin in placental extracts.. Endocrinologia Japonica. 24(4). 351–358. 2 indexed citations
13.
Ashitaka, Y, et al.. (1977). Alpha-subunit of human chorionic gonadotropin in fluid of molar vesicles.. Endocrinologia Japonica. 24(1). 115–119. 3 indexed citations
14.
Tojo, S, Y Ashitaka, Takeshi Maruo, & Hiroyuki Nishimoto. (1975). Some Biological Properties of Human Chorionic Follicle Stimulating Hormone. Endocrinologia Japonica. 22(6). 585–589. 3 indexed citations
15.
Ashitaka, Y & S. S. Koide. (1974). Interaction of Human Chorionic Gonadotropin With Rat Gonads. Fertility and Sterility. 25(2). 177–184. 7 indexed citations
16.
Ashitaka, Y, et al.. (1974). Serum and Chorionic Tissue Concentrations of Human Chorionic Gonadotropin and Its Subunits During Pregnancy. Endocrinologia Japonica. 21(6). 547–550. 35 indexed citations
17.
Maruo, Takeshi, Y Ashitaka, Matsuto Mochizuki, & S Tojo. (1974). Chorionic Gonadotropin Synthesized in Cultivated Trophoblast. Endocrinologia Japonica. 21(6). 499–505. 10 indexed citations
18.
Ashitaka, Y, Matsuto Mochizuki, & S Tojo. (1972). Purification and Properties of Chorionic Gonadotropin from the Trophoblastic Tissue of Hydatidiform Mole. Endocrinology. 90(3). 609–617. 15 indexed citations
19.
Ashitaka, Y. (1970). Studies on the biochemical properties of highly purified human chorionic gonadotropin extracted from chorionic tissue.. PubMed. 17(2). 124–35. 2 indexed citations
20.
Ashitaka, Y. (1961). [Chemical determination of estrogens in the urine].. PubMed. 37. 842–4. 1 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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