Masayo Kojima

6.2k total citations
150 papers, 4.5k citations indexed

About

Masayo Kojima is a scholar working on Rheumatology, Physiology and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Masayo Kojima has authored 150 papers receiving a total of 4.5k indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Rheumatology, 26 papers in Physiology and 18 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Masayo Kojima's work include Rheumatoid Arthritis Research and Therapies (36 papers), Nutritional Studies and Diet (10 papers) and Autoimmune and Inflammatory Disorders Research (9 papers). Masayo Kojima is often cited by papers focused on Rheumatoid Arthritis Research and Therapies (36 papers), Nutritional Studies and Diet (10 papers) and Autoimmune and Inflammatory Disorders Research (9 papers). Masayo Kojima collaborates with scholars based in Japan, United States and India. Masayo Kojima's co-authors include Shinkan Tokudome, Akiko Tamakoshi, Kenji Wakai, Toshi A. Furukawa, Yoshiyuki Ohno, Takashi Kawamura, Sadao Suzuki, Y. Sano, Rie Aoki and Yingsong Lin and has published in prestigious journals such as Journal of the American Chemical Society, Journal of Biological Chemistry and PLoS ONE.

In The Last Decade

Masayo Kojima

144 papers receiving 4.4k citations

Peers

Countries citing papers authored by Masayo Kojima

Since Specialization

Citations

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

Fields of papers citing papers by Masayo Kojima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masayo Kojima

This figure shows the co-authorship network connecting the top 25 collaborators of Masayo Kojima. A scholar is included among the top collaborators of Masayo Kojima 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 Masayo Kojima. Masayo Kojima 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	2024 Update of the Japan College of Rheumatology Clinical Practice Guidelines for the Management of Rheumatoid Arthritis: Secondary publication 2025 ·Modern Rheumatology ·Masayoshi Harigai, Yuko Kaneko, Eiichi Tanaka, Shintaro Hirata, Hideto Kameda, Kayoko Kaneko, Mitsumasa Kishimoto, Masataka Kohno, Masayo Kojima, Toshihisa Kojima, Akio Morinobu, Ayako Nakajima, Takahiko Sugihara, (unknown), Nobuyuki Yajima, (unknown), Yutaka Kawahito	4
2	Differences in prevalence of self‐reported oral hypofunction between older adult patients with rheumatoid arthritis and the general older population: A cross‐sectional study using propensity score matching 2024 ·Journal of Oral Rehabilitation ·Yoko Kudo, Kenji Takeuchi, Taro Kusama, Toshihisa Kojima, Yuko Waguri‐Nagaya, Mako Nagayoshi, Katsunori Kondo, Kentaro Mizuta, Ken Osaka, Masayo Kojima	3
3	Challenges nurses face in providing care for patients with juvenile idiopathic arthritis 2024 ·Modern Rheumatology ·(unknown), Hideko Nakahara, Takako Miyamae, Masaaki Mori, Yukitomo Urata, Kimito Kawahata, Yutaka Kawahito, Masayo Kojima, Takahiko Sugihara, Motomu Hashimoto, Atsuko Murashima, Nobuyuki Yajima, Toshihiro Matsui	1
4	AB0219 LONG-TERM OUTCOMES OF METHOTREXATE IN ELDERLY-ONSET RA IMPLEMENTING THE TREAT-TO-TARGET STRATEGY 2023 ·Annals of the Rheumatic Diseases ·(unknown), Takahiko Sugihara, Tatsuro Ishizaki, (unknown), Tadashi Hosoya, Mari Kamiya, (unknown), (unknown), Fumio Hirano, N. Miyasaka, Masayo Kojima, Shinsuke Yasuda, Masayoshi Harigai	1
5	Association of COVID-19-related discrimination with subsequent depression and suicidal ideation in healthcare workers 2023 ·Journal of Psychiatric Research ·Zui Narita, Ryo Okubo, Yohei Sasaki, Kazuyoshi Takeda, Norio Ohmagari, Koushi Yamaguchi, Naho Morisaki, (unknown), Kazue Ishitsuka, Masayo Kojima, Kunihiro Nishimura, Manami Inoue, Shohei Yamamoto, Maki Konishi, Kengo Miyo, Tetsuya Mizoue	13
6	Challenges faced by nurses engaged in rheumatology care in Japan 2023 ·Modern Rheumatology ·(unknown), Hideko Nakahara, (unknown), (unknown), Yukitomo Urata, Kimito Kawahata, Yutaka Kawahito, Masayo Kojima, Takahiko Sugihara, Motomu Hashimoto, Takako Miyamae, Atsuko Murashima, Masaaki Mori, Nobuyuki Yajima, Toshihiro Matsui	2
7	Longitudinal Changes in Physical and Cognitive Functions among Participants with and without Rheumatoid Arthritis in Community-Dwelling Middle-Aged and Older Adults 2023 ·Annals of Geriatric Medicine and Research ·(unknown), Chikako Tange, Yukiko Nishita, Makiko Tomida, (unknown), Hiroshi Shimokata, Rei Otsuka, Masayo Kojima	2
8	Drug treatment algorithm and recommendations from the 2020 update of the Japan College of Rheumatology clinical practice guidelines for the management of rheumatoid arthritis—secondary publication 2022 ·Modern Rheumatology ·Yutaka Kawahito, Akio Morinobu, Yuko Kaneko, Masataka Kohno, Shintaro Hirata, Mitsumasa Kishimoto, Yohei Seto, Takahiko Sugihara, Eiichi Tanaka, Hiromu Ito, Toshihisa Kojima, Isao Matsushita, Keiichiro Nishida, Masaaki Mori, Atsuko Murashima, Hisashi Yamanaka, Takeo Nakayama, Masayo Kojima, Masayoshi Harigai	57
9	Predictive validity of the modified Kihon Checklist for the incidence of functional disability among older people: A 3‐year cohort study from the JAGES 2022 ·Geriatrics and gerontology international ·(unknown), Taishi Tsuji, Kazushige Ide, Taiji Noguchi, (unknown), (unknown), Shosuke Satake, Katsunori Kondo, Masayo Kojima	14
10	Non-drug and surgical treatment algorithm and recommendations for the 2020 update of the Japan College of Rheumatology clinical practice guidelines for the management of rheumatoid arthritis—secondary publication 2022 ·Modern Rheumatology ·Hiromu Ito, Keiichiro Nishida, Toshihisa Kojima, Isao Matsushita, Masayo Kojima, Shintaro Hirata, Yuko Kaneko, Mitsumasa Kishimoto, Masataka Kohno, Masaaki Mori, Akio Morinobu, Atsuko Murashima, Yohei Seto, Takahiko Sugihara, Eiichi Tanaka, Takeo Nakayama, Hisashi Yamanaka, Yutaka Kawahito, Masayoshi Harigai	5
11	Patients’ perspectives of rheumatoid arthritis treatment: a questionnaire survey for the 2020 update of the Japan college of rheumatology clinical practice guidelines 2021 ·Modern Rheumatology ·Masayo Kojima, (unknown), Shintaro Hirata, Hiromu Ito, Yuko Kaneko, Mitsumasa Kishimoto, Masataka Kohno, Toshihisa Kojima, Isao Matsushita, Masaaki Mori, Akio Morinobu, Atsuko Murashima, Keiichiro Nishida, Yohei Seto, Yasumori Sobue, Takahiko Sugihara, Eiichi Tanaka, Takeo Nakayama, Yutaka Kawahito, Masayoshi Harigai	5
12	Systematic review for the treatment of older rheumatoid arthritis patients informing the 2020 update of the Japan College of Rheumatology clinical practice guidelines for the management of rheumatoid arthritis 2021 ·Modern Rheumatology ·Takahiko Sugihara, Yutaka Kawahito, Akio Morinobu, Yuko Kaneko, Yohei Seto, Toshihisa Kojima, Hiromu Ito, Masataka Kohno, Takeo Nakayama, Yasumori Sobue, Keiichiro Nishida, Isao Matsushita, Atsuko Murashima, Masaaki Mori, Eiichi Tanaka, Shintaro Hirata, Mitsumasa Kishimoto, Hisashi Yamanaka, Masayo Kojima, Masayoshi Harigai	11
13	Patient satisfaction with total joint replacement surgery for rheumatoid arthritis: a questionnaire survey for the 2020 update of the Japan college of rheumatology clinical practice guidelines 2021 ·Modern Rheumatology ·Yasumori Sobue, Masayo Kojima, Toshihisa Kojima, Hiromu Ito, Keiichiro Nishida, Isao Matsushita, Shintaro Hirata, Yuko Kaneko, Mitsumasa Kishimoto, Masataka Kohno, Atsuko Murashima, Akio Morinobu, Masaaki Mori, Takeo Nakayama, Takahiko Sugihara, Yohei Seto, Eiichi Tanaka, (unknown), Yutaka Kawahito, Masayoshi Harigai	2
14	Comprehensive risk analysis of postoperative complications in patients with rheumatoid arthritis for the 2020 update of the Japan College of Rheumatology clinical practice guidelines for the management of rheumatoid arthritis 2021 ·Modern Rheumatology ·Hiromu Ito, Koichi Murata, Yasumori Sobue, Toshihisa Kojima, Keiichiro Nishida, Isao Matsushita, Yutaka Kawahito, Masayo Kojima, Shintaro Hirata, Yuko Kaneko, Mitsumasa Kishimoto, Masataka Kohno, Masaaki Mori, Akio Morinobu, Atsuko Murashima, Yohei Seto, Takahiko Sugihara, Eiichi Tanaka, Takeo Nakayama, Masayoshi Harigai	11
15	Association between community-level social capital and frailty onset among older adults: a multilevel longitudinal study from the Japan Gerontological Evaluation Study (JAGES) 2021 ·Journal of Epidemiology & Community Health ·Taiji Noguchi, Chiyoe Murata, Takahiro Hayashi, (unknown), Masashige Saito, Masayo Kojima, Katsunori Kondo, Tami Saito	21
16	Cohort profile: Aichi regional sub-cohort of the Japan Environment and Children’s Study (JECS-A) 2019 ·BMJ Open ·Takeshi Ebara, Yasuyuki Yamada, (unknown), Yuki Ito, Atsuko Nakagawa, Taishi Miyachi, Yasuhiko Ozaki, Toyonori Omori, Sadao Suzuki, Masayo Kojima, Jun Ueyama, Motohiro Tomizawa, Sayaka Kato, Tomoko Oguri, (unknown), Hirotaka Sato, Naoko Oya, Mayumi Sugiura‐Ogasawara, Shinji Saitoh, Michihiro Kamijima	9
17	Loss of Fractal Heart Rate Dynamics in Depressive Hemodialysis Patients 2008 ·Psychosomatic Medicine ·Masayo Kojima, Junichiro Hayano, Hidekatsu Fukuta, Sei-ichiro SAKATA, Seiji Mukai, Nobuyuki Ohte, (unknown), Takanobu Toriyama, Hirohisa Kawahara, Toshi A. Furukawa, Shinkan Tokudome	19
18	Perceived Psychologic Stress and Colorectal Cancer Mortality: Findings From the Japan Collaborative Cohort Study 2005 ·Psychosomatic Medicine ·Masayo Kojima, Kenji Wakai, Shinkan Tokudome, Koji Tamakoshi, Hideaki Toyoshima, Yoshiyuki Watanabe, Norihiko Hayakawa, Koji Suzuki, Shuji Hashimoto, Miyuki Kawado, Sadao Suzuki, Yoshinori Ito, Akiko Tamakoshi	29
19	[Mass screening for prostatic cancer]. 1997 ·PubMed ·(unknown), Masahiro Watanabe, Takuya Nomoto, Koichi Sugimoto, (unknown), (unknown), K Kitamura, Masayo Kojima, Masahito Saitoh, Hideki Watanabe	4
20	Rapid Turnover of Tryptophan Hydroxylase: The Turnover Rate is Unaffected after Elevation of the Enzyme Amount Induced by Treatment of Cells with Calcium Ionophores and Protease Inhibitors 1996 ·Pteridines ·Masayo Kojima, (unknown), (unknown), (unknown), Nobuo Nakanishi, Shoji Watabe, Hiroyuki Hasegawa	0

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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