Kyushu University Academic Staff Educational and Research Activities Database
List of Papers
Kosuke Kajitani Last modified date:2021.08.18

Associate Professor / Counseling and Health Center

1. Kosuke Kajitani, Ikumi Higashijima, Kosuke Kaneko, Tomoko Matsushita, Hideaki Fukumori,Daewoong Kim, Short-term effect of a smartphone application on the mental health of university students: A pilot study using a user-centered design self-monitoring application for mental health, PLOS ONE, 2020 Sep 25;15(9):e0239592. doi: 10.1371/journal.pone.0239592. eCollection 2020., 2020.09.
2. Noriko Yamamoto, Toru Maruyama, Yoshinori Masaki, Jun Nagano, Masahiro Irie, Kosuke Kajitani, Rikako Tsuchimoto, Takeshi Sato, Contributions of Anthropometrics and Lifestyle to Blood Pressure in Japanese University Students : Investigation by Annual Health Screening, Journal of Medical Investigation, 67, 174-181, 2020.02.
3. Kosuke Kajitani, Rikako Tsuchimoto, Jun Nagano, Tomohiro Nakao, Relevance of hoarding behavior and the traits of developmental disorders among university students: a self-reported assessment study., Biopsychosoc Med, 2019 Jun 3;13:13. doi: 10.1186/s13030-019-0156-1. eCollection 2019., 2019.05.
4. Kosuke Kajitani, Rikako Tsuchimoto, Tomoko Matsushita, Hideaki Fukumori, Correlation between Taijin-Kyofu-sho and Attention Deficit Hyperactivity Disorder among University Students: A Self-reported Assessment Study, Psychiatry Journal, doi: 10.1155/2019/7953123., Mar 4;2019:7953123. doi: 10.1155/2019/7953123. eCollection 2019., 2019.02.
5. The survey by the Ministry of Health, Labour and Welfare showed suicide to be the leading cause of death for Japanese in their 20s, and enacting mental health measures for young people such as university students is an urgent issue. As a mental health measure aimed at the youth, we have launched the project entitled "the empirical study on the improvement in mental health of university students using a smartphone app". In this project, we first conducted a questionnaire survey about healthcare smartphone apps among university freshmen (N=64). When we asked whether a mental health check app was necessary for a university student, 46.9% in total of all respondents answered "very necessary" or "necessary". On the other hand, 28.1% in total answered "very necessary" or "necessary" when we asked whether it was necessary for the respondents themselves. Then, we conducted a preliminary experiment using a prototype app (N=20). Of the students who used the prototype app, 85.0% answered "very necessary" or "necessary" to a question about the necessity of a mental health check app for university students, while the students who answered "very necessary" or "necessary" accounted for 55.0% regarding its necessity for the respondents themselves. We speculate that the prototype users could imagine what a mental health app was like since they actually used the prototype and this helped the students understand its necessity. Although we mostly obtained favorable responses about the usability of this prototype app in the questionnaire, the log analysis results showed that some of the app functions were unused. We plan to use the results of this preliminary experiment to improve the app for future use.
Key Words: smartphone, application, mental health, university students, log analysis, questionnaire.
6. Toru Maruyama, Yamamoto Noriko, Kosuke Kajitani, Rikako Tsuchimoto, Yoshinori Masaki, Jun NAGANO, Masahiro Irie, Atsushi Ichimiya, Kazuhiko Yamamoto, Keiko Uezono, Correlations between Anthropometrics and Electrocardiographic Variables in Japanese University Students: Investigation by Annual Health Screening, Cardiology and Angiology: An International Journal, 10.9734/CA/2017/36193, 6, 4, 1-12, 2017.09.
7. Kosuke Kajitani, Kazuyuki Yanagimoto, Yusaku Nakabeppu, Serum galectin-3, but not galectin-1, levels are elevated in schizophrenia: implications for the role of inflammation, Psychopharmacology, 10.1007/s00213-017-4683-9, 234, 19, 2919-2927, 2017.07.
8. Kumiko Torisu, Xueli Zhang, Mari Nonaka, Takahide Kaji, Daisuke Tsuchimoto, Kosuke Kajitani, Kunihiko Sakumi, Torisu Takehiro, Kazuhiro Chida, Katsuo Sueishi, Michiaki Kubo, Jun Hata, Takanari Kitazono, Yutaka Kiyohara, Yusaku Nakabeppu, PKCη deficiency improves lipid metabolism and atherosclerosis in apolipoprotein E-deficient mice, Genes to Cells, doi: 10.1111/gtc.12402. [Epub ahead of print], 2016.08.
9. Kosuke Kajitani, Kazuyuki Yanagimoto, Akira Monji, Toru Maruyama, Memantine exacerbates QTc prolongation in Alzheimer’s disease: A case report from an unintentional rechallenge, JOURNAL OF THE AMERICAN GERIATRICS SOCIETY , 10.1111/jgs.13897, 64, 1, 230-231, 2016.01.
10. Hiroko Nomaru, Kunihiko Sakumi, Atsuhisa Katougi, Yoshinori N Ohnishi, Kosuke Kajitani, Daisuke Tsuchimoto, Eric J Nestler, Yusaku Nakabeppu, Fosb gene products are indispensable for microglial activation through regulating expressions of C5ar1 and C5ar2 genes encoding complement C5a receptors in microglia., GLIA, doi: 10.1002/glia.22680., 62, 8, 1284-1298, 2014.08.
11. Yuko Kobayakawa, Kunihiko Sakumi, Kosuke Kajitani, Françoise Poirier, Toshihiko Kadoya, Hidenori Horie, Jun-ichi Kira, Yusaku Nakabeppu, Galectin-1 deficiency improves axonal swelling of motor neurons in SOD1G93A transgenic mice., NEUROPATHOLOGY AND APPLIED NEUROBIOLOGY, doi: 10.1111/nan.12123. , 41, 2, 227-244, 2015.02.
12. Kosuke Kajitani, Yuko Kobayakawa, Hiroko Nomaru, Toshihiko Kadoya, Hidenori Horie, Yusaku Nakabeppu, Characterization of galectin-1-positive cells in the mouse hippocampus. , NEUROREPORT, doi: 10.1097/WNR.0000000000000068., 25, 3, 171-176, 2014.02.
13. Kosuke Kajitani, Shigenobu Kanba, Escitalopram Ameliorates Prolonged Depression With Psychotic Features Induced by Interferon Therapy for Hepatitis C Infection: Report of 2 Cases, PSYCHOSOMATICS, 54, 5, 506-507, 2013.09.
14. Noriko Yutsudo, Takashi Kamada*, Kosuke Kajitani*, Hiroko Nomaru*, Atsuhisa Katogi, Yoko H Ohnishi, Yoshinori N Ohnishi, Kei-ichiro Takase, Kunihiko Sakumi, Hiroshi Shigeto, Yusaku Nakabeppu, fosB-Null Mice Display Impaired Adult Hippocampal Neurogenesis and Spontaneous Epilepsy with Depressive Behavior, NEUROPSYCHOPHARMACOLOGY, 10.1038/npp.2012.260, 38, 5, 895-906, *These authors contributed equally to the manuscript, 2013.04.
15. Kosuke Kajitani, Shigenobu Kanba, Successful treatment of post-stroke emotional incontinence with Yokukansan, an Asian herbal medicine: report of 2 cases., JOURNAL OF AMERICAN GERIATRICS SOCIETY, DOI: 10.1111/j.1532-5415.2011.03801.x, 60, 2, 379-381, 2012.02.
16. Robertson GS, Kosuke Kajitani, ‘Nitric Oxide Synthase Mediation of Darbepoetin’s Cognitive Benefits: A Paradoxical Effect ?, NEUROPSYCHOPHARMACOLOGY, 37, 1075-1075, 2010.09.
17. Kosuke Kajitani, Thorne M, Samson M, Robertson GS, Nitric oxide synthase mediates the ability of darbepoetin alpha to improve the cognitive performance of STOP null mice, NEUROPSYCHOPHARMACOLOGY, doi: 10.1038/npp.2010.36. , 35, 8, 1718-1728, 2010.07.
18. Kosuke Kajitani, Wafa K, Pasumarthi KB, Robertson GS, Developmental expression of the cyclin D2 splice variant in postnatal Purkinje cells of the mouse cerebellum, NEUROSCIENCE LETTERS, 10.1016/j.neulet.2010.04.042, 477, 2, 100-104, 2010.06.
19. Samson ML, Kosuke Kajitani, Robertson GS, Nitric-Oxide Synthase Mediates the Ability of Darbepoetin Alfa to Attenuate Pre- Existing Spatial Working Memory Deficits in Rats Subjected to Transient Global Ischemia, JOURNAL OF PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS, 10.1124/jpet.110.165530, 333, 2, 437-444, 2010.05.
20. Kosuke Kajitani, Hiroko Nomaru, Ifuku M, Yutsudo N, Dan Y, Tomofumi Miura, Daisuke Tsuchimoto, SAKUMI Kunihiko, Kadoya T, Horie H, Poirier F, MAMI NODA, Yusaku Nakabeppu, Galectin-1 promotes basal and kainate-induced proliferation of neural progenitors in the dentate gyrus of adult mouse hippocampus, CELL DEATH AND DIFFERENTIATION, 10.1038/cdd.2008.162, 16, 3, 417-427, 2009.03.
21. Yusaku Nakabeppu, Kosuke Kajitani, K Sakamoto, Hiroo Yamaguchi, Daisuke Tsuchimoto, MTH1, an oxidized purine nucleoside triphosphatase, prevents the cytotoxicity and neurotoxicity of oxidized purine nucleotides, DNA REPAIR, 10.1016/j.dnarep.2005.03.003, 5, 7, 761-772, 2006.07.
22. Yukihiko Dan, Kosuke Kajitani, Noriko Yutsudo, Ken Itoh, Masayuki Yamamoto, Yusaku Nakabeppu, Transcription factor Nrf2 regulates brain response to kainate-induced excitotoxicity, NEUROSCIENCE RESEARCH, 55, S137 - S137, 2006.07.
23. Yamaguchi H, Kosuke Kajitani, Dan ,Y, Furuichi M, Ohno M, Sakumi K, Dongchon Kang, Yusaku Nakabeppu, MTH1, an oxidized purine nucleoside triphosphatase, protects the dopamine neurons from oxidative damage in nucleic acids caused by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine, CELL DEATH AND DIFFERENTIATION, 10.1038/sj.cdd.4401788, 13, 4, 551-563, 2006.04.
24. Kosuke Kajitani, Hiroo Yamaguchi, Dan Y, Masato Furuichi, Dongchon Kang, Yusaku Nakabeppu, MTH1, an oxidized purine nucleoside triphosphatase, suppresses the accumulation of oxidative damage of nucleic acids in the hippocampal microglia during kainate-induced excitotoxicity, JOURNAL OF NEUROSCIENCE, 10.1523/JNEUROSCI.4948-05.2006, 26, 6, 1688-1698, 2006.02.