Ryuji Nakao

1.7k total citations
73 papers, 1.3k citations indexed

About

Ryuji Nakao is a scholar working on Radiology, Nuclear Medicine and Imaging, Molecular Biology and Cellular and Molecular Neuroscience. According to data from OpenAlex, Ryuji Nakao has authored 73 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Radiology, Nuclear Medicine and Imaging, 25 papers in Molecular Biology and 19 papers in Cellular and Molecular Neuroscience. Recurrent topics in Ryuji Nakao's work include Medical Imaging Techniques and Applications (32 papers), Receptor Mechanisms and Signaling (16 papers) and Analytical Chemistry and Chromatography (15 papers). Ryuji Nakao is often cited by papers focused on Medical Imaging Techniques and Applications (32 papers), Receptor Mechanisms and Signaling (16 papers) and Analytical Chemistry and Chromatography (15 papers). Ryuji Nakao collaborates with scholars based in Japan, Sweden and United States. Ryuji Nakao's co-authors include Christer Halldin, Kazutoshi Suzuki, Tetsuya Suhara, Magnus Schou, Masatoshi Yamaguchi, Toshimitsu Fukumura, Hiroshi Ito, Akihiro Takano, Nahid Amini and Ming‐Rong Zhang and has published in prestigious journals such as Journal of Neuroscience, NeuroImage and Analytical Chemistry.

In The Last Decade

Ryuji Nakao

73 papers receiving 1.3k citations

Peers

Countries citing papers authored by Ryuji Nakao

Since Specialization

Citations

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

Fields of papers citing papers by Ryuji Nakao

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryuji Nakao

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

#	Work	Indexed citations
1	A Nonhuman Primate PET Study: Measurement of Brain PDE4 Occupancy by Roflumilast Using (R)-[11C]Rolipram 2018 ·Molecular Imaging and Biology ·Akihiro Takano, Tolga Uz, (unknown), Max Tsai, Gëzim Lahu, Nahid Amini, Ryuji Nakao, Zhisheng Jia, Christer Halldin	11
2	Evaluation of a novel PDE10APET radioligand, [¹¹C]T‐773, in nonhuman primates: Brain and whole body PET and brain autoradiography 2015 ·Synapse ·Akihiro Takano, В. А. Степанов, Balázs Gulyás, Ryuji Nakao, Nahid Amini, (unknown), Haruhide Kimura, Takahiko Taniguchi, Christer Halldin	14
3	Determination of plasma protein binding of positron emission tomography radioligands by high-performance frontal analysis 2014 ·Journal of Pharmaceutical and Biomedical Analysis ·Nahid Amini, Ryuji Nakao, Magnus Schou, Christer Halldin	17
4	¹⁸F-MCL-524, an¹⁸F-Labeled Dopamine D₂and D₃Receptor Agonist Sensitive to Dopamine: A Preliminary PET Study 2014 ·Journal of Nuclear Medicine ·Sjoerd J. Finnema, В. А. Степанов, Ryuji Nakao, Anna W. Sromek, (unknown), John L. Neumeyer, Susan R. George, Philip Seeman, Michael G. Stabin, Cathrine Jonsson, Lars Farde, Christer Halldin	17
5	Synthesis, Radiolabeling, and In Vivo Pharmacokinetic Evaluation of the Amyloid Beta Radioligand [11C]AZD4694 in Nonhuman Primates 2013 ·Molecular Imaging and Biology ·Magnus Schou, Katarina Varnäs, Johan Sandell, Peter Johnström, Zsolt Cselényi, Samuel Svensson, Ryuji Nakao, Nahid Amini, (unknown), (unknown), Balázs Gulyás, (unknown), Christer Halldin, Lars Farde	8
6	“Mixed” anionic and non-ionic micellar liquid chromatography for high-speed radiometabolite analysis of positron emission tomography radioligands 2013 ·Journal of Chromatography A ·Ryuji Nakao, Christer Halldin	11
7	Improvement of brain uptake for in vivo PET imaging of astrocytic oxidative metabolism using benzyl [1-11C]acetate 2013 ·Applied Radiation and Isotopes ·Maki Okada, Ryuji Nakao, Sotaro Momosaki, Kazuhiko Yanamoto, Tatsuya Kikuchi, T. Okamura, Hidekatsu Wakizaka, Rie Hosoi, Ming‐Rong Zhang, Osamu Inoue	5
8	Positron emission tomography imaging of 5-hydroxytryptamine1B receptors in Parkinson's disease 2013 ·Neurobiology of Aging ·Andrea Varrone, Per Svenningsson, Anton Forsberg, Katarina Varnäs, Mikael Tiger, Ryuji Nakao, Christer Halldin, Lars‐Göran Nilsson, Lars Farde	24
9	Quantification of Dopamine Transporter in Human Brain Using PET with ¹⁸F-FE-PE2I 2012 ·Journal of Nuclear Medicine ·Takeshi Sasaki, Hiroshi Ito, Yasuyuki Kimura, Ryosuke Arakawa, Harumasa Takano, Chie Seki, Fumitoshi Kodaka, (unknown), Keisuke Takahata, (unknown), Masayuki Suzuki, Hironobu Fujiwara, Hidehiko Takahashi, Ryuji Nakao, Toshimitsu Fukumura, Andrea Varrone, Christer Halldin, Toru Nishikawa, Tetsuya Suhara	79
10	High-yield automated synthesis of [18F]fluoroazomycin arabinoside ([18F]FAZA) for hypoxia-specific tumor imaging 2011 ·Applied Radiation and Isotopes ·Kazutaka Hayashi, Kenji Furutsuka, (unknown), (unknown), Ryuji Nakao, Hatsumi Aki, Kazutoshi Suzuki, Toshimitsu Fukumura	19
11	Quality control of PET radiopharmaceuticals by high‐performance liquid chromatography with tris(2,2′‐bipyridyl)ruthenium(II) electrogenerated chemiluminescence detection 2009 ·Biomedical Chromatography ·Ryuji Nakao, Kenji Furutsuka, Toshimitsu Fukumura, Masatoshi Yamaguchi, Kazutoshi Suzuki	3
12	Rapid and efficient purification of positron emission tomography probes by hydrophilic interaction chromatography 2009 ·Journal of Chromatography A ·Ryuji Nakao, Takehito Ito, Kazutaka Hayashi, Toshimitsu Fukumura, Kazutoshi Suzuki	1
13	Biodistribution and metabolism of the anti-influenza drug [11C]oseltamivir and its active metabolite [11C]Ro 64-0802 in mice 2009 ·Nuclear Medicine and Biology ·Akiko Hatori, (unknown), Kazuhiko Yanamoto, Tomoteru Yamasaki, (unknown), Joji Yui, Fujiko Konno, Ryuji Nakao, Kazutoshi Suzuki, Ming‐Rong Zhang	28
14	Neuroimaging and Physiological Evidence for Involvement of Glutamatergic Transmission in Regulation of the Striatal Dopaminergic System 2009 ·Journal of Neuroscience ·Masaki Tokunaga, Nicholas Seneca, Ryong-Moon Shin, Jun Maeda, Shigeru Obayashi, Takashi Okauchi, Yuji Nagai, Ming‐Rong Zhang, Ryuji Nakao, Hiroshi Ito, Robert B. Innis, Christer Halldin, Kazutoshi Suzuki, Makoto Higuchi, Tetsuya Suhara	20
15	Sensitive determination of specific radioactivity of positron emission tomography radiopharmaceuticals by radio high-performance liquid chromatography with fluorescence detection 2008 ·Nuclear Medicine and Biology ·Ryuji Nakao, Kenji Furutsuka, Masatoshi Yamaguchi, Kazutoshi Suzuki	7
16	Quantitative Analysis of Norepinephrine Transporter in the Human Brain Using PET with (S,S)-¹⁸F-FMeNER-D₂ 2008 ·Journal of Nuclear Medicine ·Ryosuke Arakawa, Masaki Okumura, Hiroshi Ito, Chie Seki, Hidehiko Takahashi, Harumasa Takano, Ryuji Nakao, Kazutoshi Suzuki, Yoshiro Okubo, Christer Halldin, Tetsuya Suhara	41
17	Quantitative analysis of dopamine synthesis in human brain using positron emission tomography with L-[β-11C]DOPA 2006 ·Nuclear Medicine Communications ·Hiroshi Ito, Miho Ota, Yoko Ikoma, Chie Seki, Fumihiko Yasuno, Akihiro Takano, Jun Maeda, Ryuji Nakao, Kazutoshi Suzuki, Tetsuya Suhara	26
18	Stability of 11C-labeled PET radiopharmaceuticals 2004 ·Applied Radiation and Isotopes ·Toshimitsu Fukumura, Ryuji Nakao, Munekage Yamaguchi, Kazuhiro Suzuki	34
19	4-(6,7-Dihydro-5,8-dioxothiazolo[4,5-g]phthalazin-2-yl)benzoic acid N-hydroxysuccinimide ester as a highly sensitive chemiluminescence derivatization reagent for amines in liquid chromatography 2001 ·Journal of Chromatography A ·(unknown), Ryuji Nakao, Takashi Matsuo, (unknown), Masatoshi Yamaguchi	21
20	5-Amino-4-sulfanylphthalhydrazide as a chemiluminescence derivatization reagent for aromatic aldehydes in liquid chromatography 2000 ·Journal of Chromatography A ·Hideyuki Yoshida, Ryuji Nakao, (unknown), Masatoshi Yamaguchi	6

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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