| Association of use of omega-3 polyunsaturated fatty acids with changes in severity of anxiety symptoms: a systematic review and meta-analysis KP Su, PT Tseng, PY Lin, R Okubo, TY Chen, YW Chen, YJ Matsuoka JAMA network open 1 (5), e182327-e182327, 2018 | 175 | 2018 |
| COVID-19 vaccine hesitancy and its associated factors in Japan R Okubo, T Yoshioka, S Ohfuji, T Matsuo, T Tabuchi Vaccines 9 (6), 662, 2021 | 150 | 2021 |
| Effect of bifidobacterium breve A-1 on anxiety and depressive symptoms in schizophrenia: A proof-of-concept study R Okubo, M Koga, N Katsumata, T Odamaki, S Matsuyama, M Oka, ... Journal of affective disorders 245, 377-385, 2019 | 128 | 2019 |
| Increase in social isolation during the COVID-19 pandemic and its association with mental health: findings from the JACSIS 2020 study H Murayama, R Okubo, T Tabuchi International journal of environmental research and public health 18 (16), 8238, 2021 | 112 | 2021 |
| Urbanization level and neighborhood deprivation, not COVID-19 case numbers by residence area, are associated with severe psychological distress and new-onset suicidal ideation … R Okubo, T Yoshioka, T Nakaya, T Hanibuchi, H Okano, S Ikezawa, ... Journal of affective disorders 287, 89-95, 2021 | 62 | 2021 |
| Factors associated with serious psychological distress during the COVID-19 pandemic in Japan: a nationwide cross-sectional internet-based study T Yoshioka, R Okubo, T Tabuchi, S Odani, T Shinozaki, Y Tsugawa BMJ open 11 (7), e051115, 2021 | 55 | 2021 |
| Impact of chemotherapy on the association between fear of cancer recurrence and the gut microbiota in breast cancer survivors R Okubo, T Kinoshita, N Katsumata, Y Uezono, J Xiao, YJ Matsuoka Brain, behavior, and immunity 85, 186-191, 2020 | 46 | 2020 |
| Association between blood omega-3 polyunsaturated fatty acids and the gut microbiota among breast cancer survivors A Horigome, R Okubo, K Hamazaki, T Kinoshita, N Katsumata, Y Uezono, ... Beneficial Microbes 10 (7), 751-758, 2019 | 36 | 2019 |
| Use of heated tobacco products, moderate alcohol drinking, and anti-SARS-CoV-2 IgG antibody titers after BNT162b2 vaccination among Japanese healthcare workers S Yamamoto, A Tanaka, N Ohmagari, K Yamaguchi, K Ishitsuka, ... Preventive Medicine 161, 107123, 2022 | 28 | 2022 |
| Diet quality and depression risk in a Japanese population: the Japan Public Health Center (JPHC)-based Prospective Study R Okubo, YJ Matsuoka, N Sawada, M Mimura, K Kurotani, S Nozaki, ... Scientific reports 9 (1), 7150, 2019 | 25 | 2019 |
| The mediator effect of personality traits on the relationship between childhood abuse and depressive symptoms in schizophrenia R Okubo, T Inoue, N Hashimoto, A Suzukawa, H Tanabe, M Oka, H Narita, ... Psychiatry research 257, 126-131, 2017 | 24 | 2017 |
| Lipid and Energy Metabolism of the Gut Microbiota Is Associated with the Response to Probiotic Bifidobacterium breve Strain for Anxiety and Depressive Symptoms … R Yamamura, R Okubo, N Katsumata, T Odamaki, N Hashimoto, I Kusumi, ... Journal of Personalized Medicine 11 (10), 987, 2021 | 22 | 2021 |
| Expectations of and recommendations for a cancer survivorship guideline in Japan: a literature review of guidelines for cancer survivorship R Okubo, S Wada, Y Shimizu, K Tsuji, A Hanai, K Imai, Y Uchitomi, ... Japanese journal of clinical oncology 49 (9), 812-822, 2019 | 22 | 2019 |
| Absent activation in medial prefrontal cortex and temporoparietal junction but not superior temporal sulcus during the perception of biological motion in schizophrenia: a … N Hashimoto, A Toyomaki, M Hirai, T Miyamoto, H Narita, R Okubo, ... Neuropsychiatric Disease and Treatment, 2221-2230, 2014 | 21 | 2014 |
| COVID‐19‐Related discrimination, PTSD symptoms, and psychological distress in Healthcare workers Z Narita, R Okubo, Y Sasaki, K Takeda, M Takao, H Komaki, H Oi, ... International journal of mental health nursing 32 (1), 139-146, 2023 | 20 | 2023 |
| Effect of home-based high-intensity interval training and behavioural modification using information and communication technology on cardiorespiratory fitness and exercise … K Tsuji, E Ochi, R Okubo, Y Shimizu, A Kuchiba, T Ueno, T Shimazu, ... BMJ open 9 (8), e030911, 2019 | 20 | 2019 |
| Temporary employment and suicidal ideation in COVID-19 pandemic in Japan: a cross-sectional nationwide survey N Sasaki, T Tabuchi, R Okubo, T Ishimaru, M Kataoka, D Nishi Journal of occupational health 64 (1), e12319, 2022 | 16 | 2022 |
| Association of COVID-19-related discrimination with subsequent depression and suicidal ideation in healthcare workers Z Narita, R Okubo, Y Sasaki, K Takeda, N Ohmagari, K Yamaguchi, ... Journal of psychiatric research 159, 153-158, 2023 | 15 | 2023 |
| Sex differences in social cognition and association of social cognition and neurocognition in early course schizophrenia R Kubota, R Okubo, S Ikezawa, M Matsui, L Adachi, A Wada, C Fujimaki, ... Frontiers in Psychology 13, 867468, 2022 | 15 | 2022 |
| Simple pulmonary eosinophilia associated with clozapine treatment N Hashimoto, T Maeda, R Okubo, H Narita, I Kusumi Journal of Clinical Psychopharmacology 35 (1), 99-101, 2015 | 15 | 2015 |