Ryoichi Aki

952 total citations
34 papers, 639 citations indexed

About

Ryoichi Aki is a scholar working on Molecular Biology, Urology and Developmental Neuroscience. According to data from OpenAlex, Ryoichi Aki has authored 34 papers receiving a total of 639 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Molecular Biology, 13 papers in Urology and 13 papers in Developmental Neuroscience. Recurrent topics in Ryoichi Aki's work include Pluripotent Stem Cells Research (16 papers), Hair Growth and Disorders (13 papers) and Neurogenesis and neuroplasticity mechanisms (13 papers). Ryoichi Aki is often cited by papers focused on Pluripotent Stem Cells Research (16 papers), Hair Growth and Disorders (13 papers) and Neurogenesis and neuroplasticity mechanisms (13 papers). Ryoichi Aki collaborates with scholars based in Japan, United States and Belgium. Ryoichi Aki's co-authors include Robert M. Hoffman, Yasuyuki Amoh, Yuko Hamada, Kensei Katsuoka, Sumiyuki Mii, Katsumasa Kawahara, Michael Bouvet, Hiroaki Kimura, Hiroyuki Kishimoto and Masashi Momiyama and has published in prestigious journals such as PLoS ONE, Scientific Reports and Journal of Cellular Biochemistry.

In The Last Decade

Ryoichi Aki

32 papers receiving 631 citations

Peers

Ryoichi Aki

CMN

UROLO

Basan Gowda Kurkalli Israel

Etsuko Satoh Japan

Sandra Danner Germany

Ana Volarevic Serbia

Sarah Hochmann Austria

Maria J. Martin Spain

Christine Baldeschi France

Dong Hyun Kim South Korea

Isadora F. G. Sena Brazil

S U Kim South Korea

Basan Gowda Kurkalli Israel

Ryoichi Aki

254 ×0.9

64 ×0.3

CMN

98 ×0.5

UROLO

70 ×0.5

176 ×1.4

Citations per year, relative to Ryoichi Aki Ryoichi Aki (= 1×) peers Basan Gowda Kurkalli

Countries citing papers authored by Ryoichi Aki

Since Specialization

Citations

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

Fields of papers citing papers by Ryoichi Aki

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryoichi Aki

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

Obara, Koya, Ryoichi Aki, Hiroyasu Hatakeyama, et al.. (2024). Rat hair-follicle-associated pluripotent (HAP) stem cells can differentiate into atrial or ventricular cardiomyocytes in culture controlled by specific supplementation. PLoS ONE. 19(1). e0297443–e0297443.

Obara, Koya, et al.. (2024). Hair-follicle associated pluripotent (HAP)-cell-sheet implantation enhanced wound healing in diabetic db/db mice. PLoS ONE. 19(6). e0304676–e0304676. 1 indexed citations

Obara, Koya, et al.. (2023). Direct implantation of hair-follicle-associated pluripotent (HAP) stem cells repairs intracerebral hemorrhage and reduces neuroinflammation in mouse model. PLoS ONE. 18(1). e0280304–e0280304. 4 indexed citations

Obara, Koya, et al.. (2022). Chronic spinal cord injury functionally repaired by direct implantation of encapsulated hair-follicle-associated pluripotent (HAP) stem cells in a mouse model: Potential for clinical regenerative medicine. PLoS ONE. 17(1). e0262755–e0262755. 8 indexed citations

Obara, Koya, et al.. (2021). Hair-Follicle-Associated Pluripotent (HAP) Stem Cells Can Extensively Differentiate to Tyrosine-Hydroxylase-Expressing Dopamine-Secreting Neurons. Cells. 10(4). 864–864. 15 indexed citations

Obara, Koya, Sumiyuki Mii, Yuko Hamada, et al.. (2019). Hair-follicle-associated pluripotent stem cells derived from cryopreserved intact human hair follicles sustain multilineage differentiation potential. Scientific Reports. 9(1). 9326–9326. 19 indexed citations

Obara, Koya, Ryoichi Aki, Yuko Hamada, et al.. (2019). Expression of anti-aging type-XVII collagen (COL17A1/BP180) in hair follicle-associated pluripotent (HAP) stem cells during differentiation. Tissue and Cell. 59. 33–38. 12 indexed citations

Obara, Koya, Sumiyuki Mii, Yuko Hamada, et al.. (2018). Hair-Follicle-Associated Pluripotent (HAP) Stem Cells Encapsulated on Polyvinylidene Fluoride Membranes (PFM) Promote Functional Recovery from Spinal Cord Injury. Stem Cell Reviews and Reports. 15(1). 59–66. 11 indexed citations

Mii, Sumiyuki, Ryoichi Aki, Yuko Hamada, et al.. (2016). Protocols for Efficient Differentiation of Hair Follicle-Associated Pluripotent (HAP) Stem Cells to Beating Cardiac Muscle Cells. Methods in molecular biology. 1453. 151–159. 1 indexed citations

10.

Mii, Sumiyuki, Ryoichi Aki, Yuko Hamada, et al.. (2016). Isoproterenol directs hair follicle-associated pluripotent (HAP) stem cells to differentiate in vitro to cardiac muscle cells which can be induced to form beating heart-muscle tissue sheets. Cell Cycle. 15(5). 760–765. 30 indexed citations

11.

Mii, Sumiyuki, Ryoichi Aki, Yuko Hamada, et al.. (2016). From hair to heart: Nestin-expressing hair follicle associated pluripotent (HAP) stem cells differentiate to beating cardiac muscle cells. Journal of Dermatological Science. 84(1). e148–e148. 1 indexed citations

12.

Mii, Sumiyuki, Ryoichi Aki, Yuko Hamada, et al.. (2015). Cryopreservation of the Hair Follicle Maintains Pluripotency of Nestin-Expressing Hair Follicle-Associated Pluripotent Stem Cells. Tissue Engineering Part C Methods. 21(8). 825–831. 20 indexed citations

13.

Momiyama, Masashi, Atsushi Suetsugu, Hiroaki Kimura, et al.. (2012). Imaging the efficacy of UVC irradiation on superficial brain tumors and metastasis in live mice at the subcellular level. Journal of Cellular Biochemistry. 114(2). 428–434. 37 indexed citations

14.

Kishimoto, Hiroyuki, Ryoichi Aki, Yasuo Urata, et al.. (2011). Tumor-selective, adenoviral-mediated GFP genetic labeling of human cancer in the live mouse reports future recurrence after resection. Cell Cycle. 10(16). 2737–2741. 62 indexed citations

15.

Amoh, Yasuyuki, Ryoichi Aki, Yuko Hamada, et al.. (2011). Nestin‐positive hair follicle pluripotent stem cells can promote regeneration of impinged peripheral nerve injury. The Journal of Dermatology. 39(1). 33–38. 38 indexed citations

16.

Liu, Fang, Aisada Uchugonova, Hiroaki Kimura, et al.. (2011). The bulge area is the major hair follicle source of nestin-expressing pluripotent stem cells which can repair the spinal cord compared to the dermal papilla. Cell Cycle. 10(5). 830–839. 85 indexed citations

17.

Aki, Ryoichi, Yasuyuki Amoh, Lingna Li, Kensei Katsuoka, & Robert M. Hoffman. (2010). Nestin‐expressing interfollicular blood vessel network contributes to skin transplant survival and wound healing. Journal of Cellular Biochemistry. 110(1). 80–86. 25 indexed citations

18.

Aki, Ryoichi, et al.. (2010). A case of psoriasis vulgaris with diffuse idiopathic skeletal hyperostosis involved with ossifications of posterior and anterior longitudinal ligament. Rheumatology International. 32(5). 1343–1345. 2 indexed citations

19.

Tsai, Ming‐Hsien, Ryoichi Aki, Yasuyuki Amoh, et al.. (2010). GFP-fluorescence-guided UVC irradiation inhibits melanoma growth and angiogenesis in nude mice.. PubMed. 30(9). 3291–4. 22 indexed citations

20.

Amoh, Yasuyuki, Yuko Hamada, Ryoichi Aki, et al.. (2010). Direct transplantation of uncultured hair‐follicle pluripotent stem (hfPS) cells promotes the recovery of peripheral nerve injury. Journal of Cellular Biochemistry. 110(1). 272–277. 30 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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