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JaLCDOI 10.18926/AMO/68647
フルテキストURL 79_2_093.pdf
著者 Tsuchie, Rina| Fukuda, Mari| Tsumura, Hideki| Kinuta, Minako| Hisamatsu, Takashi| Kanda, Hideyuki|
抄録 School teachers are subject to both physical and mental health problems. We examined cross-sectional relationships between work engagement and major health outcomes among junior and senior high school teachers in Japan via a nationwide survey in 2019-2020. A total of 3,160 respondents were included in the analyses (19.9% response rate). Work engagement was assessed with the Utrecht Work Engagement Scale-9 (UWES-9), and we thus divided the teachers into quartiles according to their UWES-9 scores. Based on validated questionnaires, we assessed insomnia, psychological distress, and neck pain as health outcomes. A binomial logistic regression adjusted for age, gender, school type, teacher’s roles, involvement in club activities, division of duties, employment status, and whether they lived with family demonstrated that the teachers with lower UWES-9 scores had higher burdens of insomnia, psychological distress, and neck pain (odds ratios [95% confidence intervals] in 4th vs. 1st quartile, 2.92 (2.34-3.65), 3.70 (2.81-4.88), and 2.12 (1.68-2.68), respectively; all trend p<0.001). There were no significant differences in these associations between full-time and part-time teachers. Our findings indicate that low work engagement may contribute to physical and mental health issues among junior and senior high school teachers, thus providing insights for preventing health problems in this profession.
キーワード work engagement school teachers insomnia psychological distress neck pain
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2025-04
79巻
2号
出版者 Okayama University Medical School
開始ページ 93
終了ページ 100
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2025 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 40302280
Web of Science KeyUT 001485544200004
JaLCDOI 10.18926/AMO/68646
フルテキストURL 79_2_081.pdf
著者 Kawada, Tatsushi| Kobayashi, Yasuyuki| Tsugawa, Takuji| Tsuboi, Kazuma| Katayama, Satoshi| Iwata, Takehiro| Bekku, Kensuke| Kobayashi, Tomoko| Edamura, Kohei| Ebara, Shin| Araki, Motoo|
抄録 We retrospectively evaluated the oncologic outcomes of paclitaxel, cisplatin, and gemcitabine (PCG) with those of gemcitabine and cisplatin (GC) as neoadjuvant chemotherapy in muscle-invasive bladder cancer (MIBC) patients. The primary outcome was efficacy: pathological complete response (pCR), ypT0N0; and pathological objective response (pOR), ypT0N0, ≤ ypT1N0, or ypT0N1. Secondary outcomes included overall survival (OS), recurrence-free survival (RFS), predictive factors for pOR, OS, and RFS, and hematologic adverse events (AEs). Among 113 patients treated (PCG, n=28; GC, n=85), similar pOR and pCR rates were achieved by the groups (pOR: PCG, 57.1% vs. GC, 49. 4%; p=0.52; pCR: PCG, 39.3% vs. GC, 29.4%; p=0.36). No significant differences were observed in OS (p=1.0) or RFS (p=0.20). Multivariate logistic regression analysis showed that hydronephrosis (odds ratio [OR] 0.32, 95%CI: 0.11-0.92) and clinical node-positive status (cN+) (OR 0.22, 95%CI: 0.050-0.99) were significantly associated with a decreased probability of pOR. On multivariate Cox regression analyses, pOR achievement was associated with improved OS (hazard ratio [HR] 0.23, 95%CI: 0.10-0.56) and RFS (HR 0.30, 95%CI: 0.13-0.67). There were no significant between-group differences in the incidence of grade ≥ 3 hematologic AEs or dose-reduction required, but the PCG group had a higher incidence of grade 4 neutropenia.
キーワード urothelial carcinoma paclitaxel cisplatin gemcitabine neoadjuvant
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2025-04
79巻
2号
出版者 Okayama University Medical School
開始ページ 81
終了ページ 92
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2025 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 40302279
Web of Science KeyUT 001485544200003
JaLCDOI 10.18926/AMO/68645
フルテキストURL 79_2_075.pdf
著者 Higaki, Fumiyo| Morimitsu, Yusuke| Iguchi, Toshihiro| Hwang, Sung Il| Kitayama, Takahiro| Takahashi, Yuka| Uka, Mayu| Akagi, Noriaki| Sugaya, Akiko| Mitsuhashi, Toshiharu| Matsui, Yusuke| Hiraki, Takao|
抄録 Temporal bone computed tomography (CT) is frequently performed for pediatric patients with ear diseases. Advances in CT technology have improved diagnostic imaging quality, but reduction of radiation exposure remains a goal. We evaluated the potential for radiation dose reduction in temporal bone CT examinations using porcine ear ossicles and a photon-counting detector CT system. Three scans of the bilateral temporal bone were performed on each of three pig cadaver heads. In each of seven successive imaging sessions, the radiation dose was reduced by an additional one-seventh of the recommended dose (RD). Two board-certified radiologists independently scored the resulting images on a scale of 1 to 5 points, where 5 represented the image quality at the RD. Images scoring ≥4.5 points were considered acceptable. Noise was assessed in a 2-cm-diameter region near the ear ossicles, and standard deviation was measured for each of the seven decrements from the RD. As the radiation dose decreased, the noise progressively increased, and visual assessment scores progressively decreased. Acceptable image scores were obtained at six-sevenths (4.9), five-sevenths (4.8), four-sevenths (4.7), and three-sevenths (4.6) of the RD. Thus, acceptable porcine temporal bone CT images were obtained with a radiation dose reduction of approximately 50%.
キーワード computed tomography photon-counting detector computed tomography ear ossicle energy-integrating detector computed tomography
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2025-04
79巻
2号
出版者 Okayama University Medical School
開始ページ 75
終了ページ 80
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2025 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 40302278
Web of Science KeyUT 001485544200002
フルテキストURL fulltext.pdf
著者 Nishida, Chisa| Honda, Hiroyuki| Otsuka, Yuki| Hagiya, Hideharu| Nakano, Yasuhiro| Oguni, Kohei| Tokumasu, Kazuki| Sakurada, Yasue| Obika, Mikako| Otsuka, Fumio|
キーワード COVID-19 pandemic lockdown weight gain medical check-ups lifestyle
発行日 2025-03-25
出版物タイトル Journal of Clinical Medicine
14巻
7号
出版者 MDPI
開始ページ 2242
ISSN 2077-0383
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2025 by the authors.
論文のバージョン publisher
PubMed ID 40217694
DOI 10.3390/jcm14072242
Web of Science KeyUT 001463577200001
関連URL isVersionOf https://doi.org/10.3390/jcm14072242
フルテキストURL fulltext.pdf
著者 Tanaka, Shin| Nakata, Eiji| Ryuko, Tsuyoshi| Itano, Takuto| Tomioka, Yasuaki| Shien, Kazuhiko| Suzawa, Ken| Miyoshi, Kentaroh| Okazaki, Mikio| Sugimoto, Seiichiro| Ozaki, Toshifumi| Toyooka, Shinichi|
キーワード Primary chest wall sarcomas Chest wall resection Chondrosarcoma Robust chest wall reconstruction
発行日 2025-04-01
出版物タイトル European Journal of Orthopaedic Surgery & Traumatology
35巻
1号
出版者 Springer Science and Business Media LLC
開始ページ 141
ISSN 1432-1068
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © The Author(s) 2025
論文のバージョン publisher
PubMed ID 40167819
DOI 10.1007/s00590-025-04260-1
Web of Science KeyUT 001459451400002
関連URL isVersionOf https://doi.org/10.1007/s00590-025-04260-1
フルテキストURL bfsc_043_045_185.pdf
出版物タイトル 岡山大学農学部センター報告
発行日 2023-04-01
43-45巻
開始ページ 185
終了ページ 192
ISSN 0910-8742
言語 日本語
著作権者 岡山大学農学部
論文のバージョン publisher
フルテキストURL bfsc_043_045_033.pdf
出版物タイトル 岡山大学農学部センター報告
発行日 2023-04-01
43-45巻
開始ページ 33
終了ページ 184
ISSN 0910-8742
言語 日本語
著作権者 岡山大学農学部
論文のバージョン publisher
フルテキストURL bfsc_043_045_029.pdf
出版物タイトル 岡山大学農学部センター報告
発行日 2023-04-01
43-45巻
開始ページ 29
終了ページ 31
ISSN 0910-8742
言語 日本語
著作権者 岡山大学農学部
論文のバージョン publisher
フルテキストURL bfsc_043_045_015.pdf
出版物タイトル 岡山大学農学部センター報告
発行日 2023-04-01
43-45巻
開始ページ 15
終了ページ 28
ISSN 0910-8742
言語 日本語
著作権者 岡山大学農学部
論文のバージョン publisher
フルテキストURL bfsc_043_045_001.pdf
出版物タイトル 岡山大学農学部センター報告
発行日 2023-04-01
43-45巻
開始ページ 1
終了ページ 13
ISSN 0910-8742
言語 日本語
著作権者 岡山大学農学部
論文のバージョン publisher
JaLCDOI 10.18926/OER/68443
タイトル(別表記) Market Segmentation and Market Reactions to Earnings Announcements: A Quarterly Analysis
フルテキストURL oer_056_3_001_013.pdf
著者 中川 豊隆| 山西 佑季| 小林 裕明|
抄録 The purpose of this paper is to examine, using quarterly financial data, how the market reaction to earnings announcements in each market segment (prime market segment, standard market segment, and growth market segment) has changed after the revision of market segmentation at the Tokyo Stock Exchange. For the research design, the abnormal volume and residual returns for the 12 quarters around April 1, 2022, when the market segmentation was changed, were calculated using the analysis method of Beaver et al. [2020]. The results of the analysis suggest that volume is significantly affected by changes in market segmentation. In addition, for the group of stocks in the growth market, there appears to have been some change in the trend of stock price fluctuations after the market segmentation revision.
出版物タイトル 岡山大学経済学会雑誌
発行日 2025-03-21
56巻
3号
開始ページ 1
終了ページ 13
ISSN 2433-4146
言語 日本語
著作権者 Copyright © 2025 岡山大学経済学会
論文のバージョン publisher
フルテキストURL fulltext.pdf
著者 Pan, Shijun| Yoshida, Keisuke| Nishiyama, Satoshi| Kojima, Takashi| Hashimoto, Yutaro|
キーワード airborne LiDAR bathymetry cross-platform deep learning green LiDAR system riverine land cover classification
発行日 2025-01-21
出版物タイトル Land
14巻
2号
出版者 MDPI
開始ページ 217
ISSN 2073-445X
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2025 by the authors.
論文のバージョン publisher
DOI 10.3390/land14020217
Web of Science KeyUT 001431595700001
関連URL isVersionOf https://doi.org/10.3390/land14020217
JaLCDOI 10.18926/AMO/68363
フルテキストURL 79_1_059.pdf
著者 Minakawa, Shun| Hirano, Masayuki| Takahashi, Kazuya| Imamura, Yuta| Watanabe, Takashi|
抄録 Intraorbital arteriovenous fistulas (IOAVFs) are rare vascular abnormalities. We describe a case of an IOAVF featuring a direct shunt between the accessory meningeal artery and the superior ophthalmic artery. A 55-year-old woman presented with a 1-month history of visual impairment in her right eye, and magnetic resonance imaging (MRI) revealed optic neuritis-like findings. Steroid pulse therapy temporarily resolved visual impairment. However, 1 month later, she experienced decreased visual acuity, ocular conjunctival hyperemia, edema, and a pulsatile murmur. Contrast-enhanced MRI and digital subtraction angiography revealed compression optic neuropathy due to an IOAVF. Following successful treatment with transarterial embolization, her symptoms disappeared.
キーワード intraorbital arteriovenous fistula compressive optic neuropathy accessory meningeal artery superior ophthalmic vein
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2025-02
79巻
1号
出版者 Okayama University Medical School
開始ページ 59
終了ページ 64
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2025 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 40012161
Web of Science KeyUT 001440463800008
JaLCDOI 10.18926/AMO/68362
フルテキストURL 79_1_051.pdf
著者 Miura, Taro| Kawasaki, Yoichi| Hamano, Hirofumi| Zamami, Yoshito| Sendo, Toshiaki|
抄録 Photoinitiators are used in the manufacture of many daily products, and may produce harmful effects due to their cytotoxicity. They have also been detected in human serum. Here, we investigated the histamine-producing effects in HMC-1 cells and the inflammatory cytokine release effects in RAW264 cells for four photoinitiators: 1-hydroxycyclohexyl phenyl ketone; 2-isopropylthioxanthone; methyl 2-benzoylbenzoate; and 2-methyl-4´-(methylthio)-2-morpholinopropiophenone. All four promoted histamine production in HMC-1 cells; however, they did not significantly affect the release of inflammatory cytokines in RAW264 cells. These findings suggest that these four photoinitiators induce inflammatory cytokine-independent histamine production, potentially contributing to histamine-mediated chronic inflammation in vitro.
キーワード photoinitiator ink injection histamine inflammation
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2025-02
79巻
1号
出版者 Okayama University Medical School
開始ページ 51
終了ページ 58
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2025 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 40012160
Web of Science KeyUT 001440463800007
JaLCDOI 10.18926/AMO/68361
フルテキストURL 79_1_047.pdf
著者 Kojima, Kazunori| Ujikawa, Takuya| Ono, Toshiro|
抄録 We assessed the immediate effects of a home-based rehabilitation (HBR) program on the balance performance and toe-grip strength of 29 older adults (mean±SD age of 75.1±9.9; 16 males, 13 females) who were participating in HBR services provided by Japan’s nursing care insurance system. Their toe-grip strength and balance performance were measured before and after the HBR program. The subjects’ toe-grip strength was significantly improved after the treatment. The subjects who had had a stroke showed a significant improvement after HBR. Contrarily, no significant difference was observed in the subjects’ functional reach results or their one-leg standing time. These results indicate that the exercise regimen provided in the HBR program led to increased excitability of motor units and immediately enhanced the subjects’ toe-grip strength.
キーワード home-based rehabilitation toe-grip strength balance performance
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2025-02
79巻
1号
出版者 Okayama University Medical School
開始ページ 47
終了ページ 50
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2025 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 40012159
Web of Science KeyUT 001440463800006
JaLCDOI 10.18926/AMO/68355
フルテキストURL 79_1_021.pdf
著者 Yamamoto, Yasuhiro| Haraguchi, Takafumi| Matsuda, Kaori| Okazaki, Yoshio| Kimoto, Shin| Tanji, Nozomu| Matsumoto, Atsushi| Kobayashi, Yasuyuki| Mimura, Hidefumi| Hiraki, Takao|
抄録 We developed a machine learning model for predicting prostate cancer (PCa) grades using radiomic features of magnetic resonance imaging. 112 patients diagnosed with PCa based on prostate biopsy between January 2014 and December 2021 were evaluated. Logistic regression was used to construct two prediction models, one using radiomic features and prostate-specific antigen (PSA) values (Radiomics model) and the other Prostate Imaging-Reporting and Data System (PI-RADS) scores and PSA values (PI-RADS model), to differentiate high-grade (Gleason score [GS] ≥ 8) from intermediate or low-grade (GS < 8) PCa. Five imaging features were selected for the Radiomics model using the Gini coefficient. Model performance was evaluated using AUC, sensitivity, and specificity. The models were compared by leave-one-out cross-validation with Ridge regularization. Furthermore, the Radiomics model was evaluated using the holdout method and represented by a nomogram. The AUC of the Radiomics and PI-RADS models differed significantly (0.799, 95% CI: 0.712-0.869; and 0.710, 95% CI: 0.617-0.792, respectively). Using holdout method, the Radiomics model yielded AUC of 0.778 (95% CI: 0.552-0.925), sensitivity of 0.769, and specificity of 0.778. It outperformed the PI-RADS model and could be useful in predicting PCa grades, potentially aiding in determining appropriate treatment approaches in PCa patients.
キーワード prostate cancer machine learning prostate Imaging-Reporting and Data System radiomics Gleason score
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2025-02
79巻
1号
出版者 Okayama University Medical School
開始ページ 21
終了ページ 30
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2025 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 40012156
Web of Science KeyUT 001440463800003
JaLCDOI 10.18926/AMO/68354
フルテキストURL 79_1_009.pdf
著者 Ikeya, Nanami| Okita, Atsushi| Hashida, Shinsuke| Yamamoto, Sumiharu| Ikeda, Hirokuni| Tsukuda, Kazunori| Toyooka, Shinichi|
抄録 Muscle loss negatively affects gastrectomy prognosis. However, muscle loss is recognized as a systemic change, and individual muscle function is often overlooked. We investigated changes in the muscle volume of individual muscles after gastrectomy to identify clues for prognostic factors and optimal rehabilitation programs. Patients who underwent R0 gastrectomy for Stage I gastric cancer at our hospital from 2015 to 2021 were retrospectively selected to minimize the effects of malignancy and chemotherapy. Trunk muscle volume was measured by computed tomography to analyze body composition changes. Statistical analysis was performed to identify risk factors related to body composition changes. We compared the preoperative and 6-month postoperative conditions of 59 patients after gastrectomy. There was no difference in the psoas major muscle, a conventional surrogate marker of sarcopenia. There were significant decreases in the erector spinae (p=0.01) and lateral abdominal (p=0.01) muscles, and a significant increase in the rectus abdominis muscle (p=0.02). No significant correlation was found between these muscle changes and nutritional status. Body composition imbalance may serve as a new indicator of the general condition of patients after gastrectomy. Rehabilitation to correct this imbalance may improve prognosis after gastrectomy.
キーワード sarcopenia skeletal muscle gastric cancer gastrectomy erector spinae muscle
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2025-02
79巻
1号
出版者 Okayama University Medical School
開始ページ 9
終了ページ 19
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2025 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 40012155
Web of Science KeyUT 001440463800002
フルテキストURL fulltext.pdf
著者 Fujiwara, Shintaro| Otsuka, Yuki| Furukawa, Masanori| Higashikage, Akihito| Otsuka, Fumio|
キーワード chronic fatigue syndrome chronic pain hypophosphatasemia alkaline phosphatase hypophosphatasia
発行日 2024-11-23
出版物タイトル Journal of Clinical Medicine
13巻
23号
出版者 MDPI
開始ページ 7078
ISSN 2077-0383
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2024 by the authors.
論文のバージョン publisher
PubMed ID 39685537
DOI 10.3390/jcm13237078
Web of Science KeyUT 001377273900001
関連URL isVersionOf https://doi.org/10.3390/jcm13237078
フルテキストURL fulltext.pdf
著者 Okanoue, Shotaro| Sakae, Hiroyuki| Yokota, Kenji| Tanaka, Takehiro| Obayashi, Yuka| Abe, Makoto| Kono, Yoshiyasu| Kanzaki, Hiromitsu| Iwamuro, Masaya| Kawano, Seiji| Kawahara, Yoshiro| Yanai, Hiroyuki| Okada, Hiroyuki|
キーワード atrophic gastritis gastric cancer Helicobacter pylori young adults eradication
発行日 2024-11-01
出版物タイトル Internal Medicine
63巻
21号
出版者 Japanese Society of Internal Medicine
開始ページ 2875
終了ページ 2884
ISSN 0918-2918
NCID AA10827774
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 Ⓒ 2024 The Japanese Society of Internal Medicine
論文のバージョン publisher
PubMed ID 38432971
DOI 10.2169/internalmedicine.1851-23
Web of Science KeyUT 001361033600001
関連URL isVersionOf https://doi.org/10.2169/internalmedicine.1851-23
フルテキストURL fulltext20250108-02.pdf fig20250108-02.pdf table20250108-02.pdf
著者 Toyosawa, Junki| Yamasaki, Yasushi| Aoyama, Yuki| Takei, Kensuke| Igawa, Shoko| Inokuchi, Toshihiro| Kinugasa, Hideaki| Takahara, Masahiro| Hiraoka, Sakiko| Okada, Hiroyuki| Otsuka, Motoyuki|
キーワード Underwater endoscopic mucosal resection Endoscopic mucosal resection Cold snare polypectomy
備考 This is the accepted manuscript version of an article published by Karger Publishers in [Junki Toyosawa, Yasushi Yamasaki, Yuki Aoyama, Kensuke Takei, Shoko Igawa, Toshihiro Inokuchi, Hideaki Kinugasa, Masahiro Takahara, Sakiko Hiraoka, Hiroyuki Okada, Motoyuki Otsuka; Adverse Events after Different Endoscopic Resection Procedures for Small and Intermediate-Sized Colorectal Polyps. Dig Dis 2 December 2024; 42 (6): 529–537. https://doi.org/10.1159/000540365] and available on karger.com/Article/FullText/doi.|
発行日 2024-08-09
出版物タイトル Digestive Diseases
42巻
6号
出版者 S. Karger AG
開始ページ 529
終了ページ 537
ISSN 0257-2753
NCID AA10725752
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2024 S. Karger AG, Basel
論文のバージョン author
PubMed ID 39128468
DOI 10.1159/000540365
Web of Science KeyUT 001374461700001
関連URL isVersionOf https://doi.org/10.1159/000540365