Sadao Katayama

10.2k total citations · 2 hit papers
37 papers, 4.8k citations indexed

About

Sadao Katayama is a scholar working on Molecular Biology, Cellular and Molecular Neuroscience and Physiology. According to data from OpenAlex, Sadao Katayama has authored 37 papers receiving a total of 4.8k indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Molecular Biology, 12 papers in Cellular and Molecular Neuroscience and 10 papers in Physiology. Recurrent topics in Sadao Katayama's work include Alzheimer's disease research and treatments (9 papers), Parkinson's Disease Mechanisms and Treatments (7 papers) and Genetic Neurodegenerative Diseases (7 papers). Sadao Katayama is often cited by papers focused on Alzheimer's disease research and treatments (9 papers), Parkinson's Disease Mechanisms and Treatments (7 papers) and Genetic Neurodegenerative Diseases (7 papers). Sadao Katayama collaborates with scholars based in Japan, United States and Singapore. Sadao Katayama's co-authors include Takeshi Iwatsubo, Shobha Dhadda, Michael C. Irizarry, Christopher Chen, Michio Kanekiyo, David Watson, Lynn D. Kramer, Paul Aisen, Chad J. Swanson and Randall J. Bateman and has published in prestigious journals such as New England Journal of Medicine, Nature Genetics and NeuroImage.

In The Last Decade

Sadao Katayama

37 papers receiving 4.7k citations

Hit Papers

align trajectories

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.

Lecanemab in Early Alzheimer’s Disease

2022 2.7k citations Christopher H. van Dyck, Chad J. Swanson et al. New England Journal of Medicine profile →
CAG expansions in a novel gene for Machado-Joseph disease at chromosome 14q32.1

1994 1.4k citations Yoshiya Kawaguchi, Toshihiro Okamoto et al. Nature Genetics profile →

Peers

Countries citing papers authored by Sadao Katayama

Since Specialization

Citations

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

Fields of papers citing papers by Sadao Katayama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sadao Katayama

This figure shows the co-authorship network connecting the top 25 collaborators of Sadao Katayama. A scholar is included among the top collaborators of Sadao Katayama 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 Sadao Katayama. Sadao Katayama 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	Clarity AD: Asian regional analysis of a phase III trial of lecanemab in early Alzheimer's disease 2025 ·The Journal of Prevention of Alzheimer s Disease ·Christopher Chen, Sadao Katayama, Jae Hong Lee, Juneyoung Lee, Masaki Nakagawa, (unknown), (unknown), Amitabh Dash, Michael C. Irizarry, Shobha Dhadda, Michio Kanekiyo, (unknown), Takeshi Iwatsubo	9
2	Donanemab in Japanese Patients with Early Alzheimer’s Disease: Subpopulation Analysis of the TRAILBLAZER-ALZ 2 Randomized Trial 2024 ·Neurology and Therapy ·Shoichiro Sato, (unknown), (unknown), Sadao Katayama, Hideaki Katagiri, John R. Sims	8
3	Lecanemab in Early Alzheimer’s Disease breakdown → 2022 ·New England Journal of Medicine ·Christopher H. van Dyck, Chad J. Swanson, Paul Aisen, Randall J. Bateman, Christopher Chen, Michelle Gee, Michio Kanekiyo, (unknown), Larisa Reyderman, Sharon Cohen, Lutz Froelich, Sadao Katayama, Marwan Sabbagh, Bruno Vellas, David Watson, Shobha Dhadda, Michael C. Irizarry, Lynn D. Kramer, Takeshi Iwatsubo	2741
4	Efficacy, Safety, and Tolerability of Switching from Oral Cholinesterase Inhibitors to Rivastigmine Transdermal Patch with 1-Step Titration in Patients with Mild to Moderate Alzheimer’s Disease: A 24-Week, Open-Label, Multicenter Study in Japan 2019 ·Dementia and Geriatric Cognitive Disorders Extra ·(unknown), Sadao Katayama, Tetsuaki Arai, (unknown), Shin-ichiro Ikebe, Yoshinori Ishida, (unknown), Shinji Ouma, Hirofumi Sakurai, (unknown), Makio Takahashi, Toshihisa Tanaka, Norifumi Tsuno, Yosuke Wakutani, (unknown), Ayan Das Gupta, Kazuki Kiyose, Kazuhiro Toriyama, Yu Nakamura	9
5	Adequacy of Using Consensus Guidelines for Diagnosis of Dementia with Lewy Bodies in Clinical Trials for Drug Development 2015 ·Dementia and Geriatric Cognitive Disorders ·Manabu Ikeda, Etsuro Mori, Eizo Iseki, Sadao Katayama, Yasuto Higashi, Mamoru Hashimoto, (unknown), Masaki Nakagawa, Kenji Kosaka	4
6	Relationship between neuronal loss and tangle formation in neurons and oligodendroglia in progressive supranuclear palsy 2006 ·Neuropathology ·Cheng Hua Jin, Sadao Katayama, (unknown), (unknown), Kôichi Noda, Shigenobu Nakamura, Masayasu Matsumoto	11
7	Autopsy case of pure akinesia showing pallido‐nigro‐luysian atrophy 2005 ·Neuropathology ·Yoshihiro Konishi, Teruo Shirabe, Sadao Katayama, Itaru Funakawa, Akira Terao	14
8	The relationship between αB‐crystallin and neurofibrillary tangles in Alzheimer's disease 2001 ·Neuropathology and Applied Neurobiology ·(unknown), Sadao Katayama, Chiemi Watanabe, (unknown), K. Noda, Yasuhisa Yamamura, Shin Nakamura	29
9	Abnormal signals on proton density-weighted MRI of the superior cerebellar peduncle in progressive supranuclear palsy 2001 ·Acta Neurologica Scandinavica ·Masaki Oka, Sadao Katayama, Yukari Imon, Tomohiko Ohshita, Yasuyo Mimori, Sho Nakamura	32
10	Gallyas-positive argyrophilic and ubiquitinated filamentous inclusions in rapidly progressive motor neuron disease: immunohistochemical and electron microscopic studies 2000 ·Acta Neuropathologica ·Sadao Katayama, Chiemi Watanabe, Tatsuo Kohriyama, Yasuhisa Yamamura, (unknown), Hitoshi Ohishi, Takashi Nishisaka, Kunihiro Inai, Eri Tanaka, Sho Nakamura	2
11	Numerous conglomerate inclusions in slowly progressive familial amyotrophic lateral sclerosis with posterior column involvement 1999 ·Journal of the Neurological Sciences ·Sadao Katayama, (unknown), K. Noda, Hitoshi Ohishi, Yasuhiro Yamamura, Takashi Nishisaka, (unknown), Kei Asayama, Shigeo Murayama, Shigenobu Nakamura	7
12	Slowly progressive L-DOPA nonresponsive pure akinesia due to nigropallidal degeneration: a clinicopathological case study 1998 ·Journal of the Neurological Sciences ·Sadao Katayama, Chiemi Watanabe, (unknown), Masaki Oka, (unknown), Yasuhisa Yamamura, E Tahara, Sho Nakamura	11
13	Argyrophilic structures stimulate glial reactions in neurofibrillary tangles and senile plaques 1998 ·Neurological Research ·Masaki Oka, Sadao Katayama, (unknown), Kôichi Noda, (unknown), Shigenobu Nakamura	5
14	Late-onset neuronal intranuclear hyaline inclusion disease A case report 1997 ·Brain Pathology ·Chika Watanabe, Sadao Katayama, K. Noda, Masaki Oka, (unknown), Yukari Imon, Yasuhisa Yamamura, Shun‐ichi Nakamura	1
15	CAG expansions in a novel gene for Machado-Joseph disease at chromosome 14q32.1 breakdown → 1994 ·Nature Genetics ·Yoshiya Kawaguchi, Toshihiro Okamoto, Masafumi Taniwaki, (unknown), Miho Inoue, Sadao Katayama, Hideshi Kawakami, Shigenobu Nakamura, Masaki Nishimura, Ichiro Akiguchi, Jun Kimura, Shuh Narumiya, Akira Kakizuka	1399
16	Calcium‐Activated Neutral Proteinase (Calpain) System in Aging and Alzheimer's Disease^a 1994 ·Annals of the New York Academy of Sciences ·Ralph A. Nixon, Kenichi Saito, Frida Grynspan, (unknown), Sadao Katayama, Toshiyuki Honda, Panaiyur S. Mohan, Thomas B. Shea, Mary Lou Beermann	226
17	Relationship between osteopenia and clinical characteristics of parkinson's disease 1993 ·Movement Disorders ·Fumiko Ishizaki, Toshihide Harada, Sadao Katayama, (unknown), Shigenobu Nakamura	23
18	Diurnal rhythm of blood pressure during sleep and wakefulness in patients with diabetes mellitus. -In relation to autonomic nervous system function- 1990 ·Toshihide Harada, Tatsuo Kohriyama, Fumiko Ishizaki, Sadao Katayama	3
19	Somatostatin increases intracellular Ca2+ concentration in cultured rat hippocampal neurons 1989 ·Brain Research ·Rie Miyoshi, Shozo Kito, Sadao Katayama, (unknown)	17
20	Effects of calcium antagonists on muscarinic receptor subtypes in the rat brain 1987 ·Brain Research ·Sadao Katayama, (unknown), Rie Miyoshi, Hiroaki Matsubayashi	11

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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