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JaLCDOI 10.18926/AMO/66671
フルテキストURL 78_1_053.pdf
著者 Ichikawa, Yukiko| Ogino, Tetsuya|
抄録 Ice bags are frequently used in medical care settings for pain relief, comfort, and in some cases, whole-body cooling. This study quantifies heat energy transfer capacity of ice bags and evaluates their cooling effects on body temperature. Forty-eight healthy adults in their 20s were recruited. An ice bag wrapped in two layers of dry towel was applied to the forehead, neck, or palm of each participant for 10 min. The skin surface temperature, heat flow, and core temperature were recorded during the cooling and non-cooling periods, with energy transfer calculated by integrating heat flow over time. Over the non-cooling period, 31.4-53.6 kJ·m-2 of energy was dissipated over 10 min, whereas during the cooling period, the range increased to 180.0-218.7 kJ·m-2 over 10 min. Skin surface temperature decreased by 3.2-5.7°C, whereas core temperature was unchanged. Ice bag use augmented energy transfer by about 150-180 kJ·m-2 over 10 min, but this was insufficient for rapid whole body cooling due to the small skin-surface area in contact with the ice bag. The measured energy transfer indicated that topical ice bag application absorbs insufficient energy to affect core temperature. Quantitative assessment of energy transfer was shown to inform the safe and appropriate use of thermotherapy.
キーワード cold compress fever hyperthermia thermal conductivity thermoregulation
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2024-02
巻 78巻
号 1号
出版者 Okayama University Medical School
開始ページ 53
終了ページ 61
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 Ⓒ 2024 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 38419315
Web of Science KeyUT 001203658200009
フルテキストURL fulltext20240122-02.pdf
著者 Mochizuki, Kenji| Adachi, Yuji| Koga, Kenichiro|
キーワード Close-packed ices Ice nanotubes Carbon nanotubes Continuous freezing Ferroelectricices
発行日 2023-12-18
出版物タイトル ACS Nano
巻 18巻
号 1号
出版者 American Chemical Society (ACS)
開始ページ 347
終了ページ 354
ISSN 1936-0851
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 © 2023 The Authors.
論文のバージョン publisher
PubMed ID 38109520
DOI 10.1021/acsnano.3c07084
Web of Science KeyUT 001139474500001
関連URL isVersionOf https://doi.org/10.1021/acsnano.3c07084
フルテキストURL fulltext20240115-01.pdf
著者 Yamada, Yutaka| Okano, Kodai| Isobe, Kazuma| Horibe, Akihiko|
備考 This fulltext file will be available in Dec. 2024.|
発行日 2023-12-04
出版物タイトル Applied Physics Letters
巻 123巻
号 23号
出版者 AIP Publishing
開始ページ 231601
ISSN 0003-6951
NCID AA00543431
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 © 2023 Author(s).
論文のバージョン publisher
DOI 10.1063/5.0167486
Web of Science KeyUT 001114922700007
関連URL isVersionOf https://doi.org/10.1063/5.0167486
JaLCDOI 10.18926/AMO/66157
フルテキストURL 77_6_647.pdf
著者 Kojima, Katsuhide| Takahashi, Yuka| Sugiyama, Soichi| Asano, Yudai| Okawa, Nanako| Makimoto, Satoko| Higaki, Fumiyo| Iguchi, Toshihiro| Hiraki, Takao|
抄録 A 67-year-old man was referred to our hospital for the diagnosis and treatment of prostate cancer. Multidisciplinary discussion led to intensity-modulated radiotherapy preceded by hormone therapy. Before radiotherapy, a biodegradable hydrogel spacer (HS) was placed between the prostate and rectum to reduce radiation injury risk. Three weeks postplacement, pelvic magnetic resonance imaging revealed HS migration into the pelvic vein. Subsequent whole-body contrast-enhanced computed tomography (CECT) revealed HS migration into the pulmonary artery. The patient showed no symptoms or clinical signs. Radiotherapy was completed uneventfully. Complete absorption of the migrated HS was confirmed using CECT images 5 months postplacement.
キーワード hydrogel spacer prostate cancer radiotherapy pulmonary embolism
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2023-12
巻 77巻
号 6号
出版者 Okayama University Medical School
開始ページ 647
終了ページ 650
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 Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 38145939
Web of Science KeyUT 001164631200010
JaLCDOI 10.18926/AMO/66152
フルテキストURL 77_6_607.pdf
著者 Tani, Yasunari| Kashima, Saori| Mitsuhashi, Toshiharu| Suzuki, Etsuji| Takao, Soshi| Yorifuji, Takashi|
抄録 Many studies have shown an association between long-term exposure to particulate matter having an aerodynamic diameter of 2.5 μm or less (PM2.5) and diabetes mellitus (DM), but few studies have focused on Asian subjects. We thus examined the association between long-term exposure to PM2.5 and DM prevalence in Okayama City, Japan. We included 76,591 participants who had received basic health checkups in 2006 and 2007. We assigned the census-level modeled PM2.5 data from 2006 and 2007 to each participant and defined DM using treatment status and the blood testing. PM2.5 was associated with DM prevalence, and the prevalence ratio (95% confidence interval) was 1.10 (1.00-1.20) following each interquartile range increase (2.1 μg/m3) in PM2.5. This finding is consistent with previous results and suggests that long-term exposure to PM2.5 is associated with an increased prevalence of DM in Okayama City, Japan, where the PM2.5 level is lower than in other cities in Asian countries.
キーワード air pollution diabetes mellitus epidemiology glycosylated hemoglobin particulate matter
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2023-12
巻 77巻
号 6号
出版者 Okayama University Medical School
開始ページ 607
終了ページ 612
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 Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 38145934
Web of Science KeyUT 001164631200005
JaLCDOI 10.18926/AMO/66148
フルテキストURL 77_6_567.pdf
著者 Matsumoto, Naomi| Higuchi, Chigusa| Miyaji, Chikara| Mitsuhashi, Toshiharu| Hagiya, Hideharu| Takao, Soshi| Yorifuji, Takashi|
抄録 This paper presents the results of a series of surveys conducted from July 2021 to March 2023 to investigate the post-vaccination adverse reactions to the mRNA-1273 (Moderna) vaccine among faculty, staff, and students at Okayama University. These studies complement the official surveys conducted by the Ministry of Health, Labour and Welfare (MHLW) and provide a more representative picture of adverse reactions in the general population including large numbers of healthy young people. Pain, swelling, redness at the injection site, fever, headache, and malaise were the main adverse reactions reported. The proportion of adverse reactions was generally higher after the second vaccination and decreased with each additional vaccination. No statistically significant differences in the adverse reactions were found for males and females and those with/without a history of allergy, but a lower proportion of fever was observed in older participants and those with underlying medical conditions. We also evaluated the association between adverse reactions and antibody titers after the third vaccination and found no significant differences in antibody levels one month after vaccination. This series of studies highlights the importance of conducting surveys in diverse populations to provide a more representative picture of post-vaccination adverse reactions during a pandemic.
キーワード coronavirus disease 2019 adverse reactions mRNA vaccine antibody titers young adults
Amo Type Review
出版物タイトル Acta Medica Okayama
発行日 2023-12
巻 77巻
号 6号
出版者 Okayama University Medical School
開始ページ 567
終了ページ 575
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 Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 38145930
Web of Science KeyUT 001164631200001
フルテキストURL K0006780_abstract_review.pdf K0006780_fulltext.pdf K0006780_summary.pdf
著者 河村 浩平|
発行日 2023-03-24
資料タイプ 学位論文
学位授与番号 甲第6780号
学位授与年月日 2023-03-24
学位・専攻分野 博士(医学)
授与大学 岡山大学
言語 英語
著作権者 © 2022 Japanese College of Cardiology.
JaLCDOI 10.18926/AMO/65143
フルテキストURL 77_2_139.pdf
著者 Namio, Keiichi| Kondo, Takashi| Miyatake, Nobuyuki| Hishii, Shuhei| Nishi, Hiroyuki| Katayama, Akihiko| Ujike, Kazuhiro| Suzuki, Hiromi| Koumoto, Kiichi|
抄録 We investigated the link between prolonged sedentary bouts and all-cause mortality in patients on chronic hemodialysis, using a prospective cohort. A total of 104 outpatients on chronic hemodialysis from 2013 to 2019, aged 71.4±11.4 years, were enrolled. Prolonged sedentary bouts (≥ 30 min and ≥60 min) (min and bouts) and relative prolonged sedentary bouts (≥ 30 min and ≥ 60 min) (%) on the patients’ non-hemodialysis days were measured by a tri-accelerometer, and we also analyzed the patients’ clinical parameters. The relationship between prolonged sedentary bouts and all-cause mortality was evaluated by a survival analysis and the Cox proportional hazard model. Thirty-five patients died during the follow-up period. A Kaplan-Meier analysis detected significant differences in the survival rate between two groups stratified by the median for all prolonged sedentary-bout parameters. After the adjustment for confounding factors, all of the prolonged sedentary-bout parameters were determinant factors for all-cause mortality. These results indicate that prolonged sedentary bouts on non-hemodialysis days were closely related to all-cause mortality in the patients on hemodialysis.
キーワード sedentary bout mortality hemodialysis survival analysis
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2023-04
巻 77巻
号 2号
出版者 Okayama University Medical School
開始ページ 139
終了ページ 145
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 Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 37094951
Web of Science KeyUT 000982503800003
JaLCDOI 10.18926/AMO/65141
フルテキストURL 77_2_121.pdf
著者 Iguchi, Toshihiro| Matsui, Yusuke| Tomita, Koji| Uka, Mayu| Umakoshi, Noriyuki| Kawabata, Takahiro| Munetomo, Kazuaki| Nagata, Shoma| Araki, Motoo| Hiraki, Takao|
抄録 Percutaneous cryoablation of renal tumors is widely used because of its high efficacy and safety. This high safety can be attributed, at least in part, to the visibility of the ablated area as an “ice ball”. This therapy has fewer complications (incidence, 0-7.2%) and is less invasive than surgery. Minor bleeding is inevitable in most kidney-related procedures, and indeed the most common complication of this therapy is bleeding (hematoma and hematuria). However, patients require treatment such as transfusion or transarterial embolization in only 0-4% of bleeding cases. Various other complications such as ureteral or collecting system injury, bowel injury, nerve injury, skin injury, infection, pneumothorax, and tract seeding also occur, but they are usually minor and asymptomatic. However, operators should know and avoid the various complications associated with this therapy. This study aimed to summarize the complications of percutaneous cryoablation for renal tumors and provide some techniques for achieving safe procedures.
キーワード cryosurgery kidney neoplasms carcinoma renal cell complication
Amo Type Review
出版物タイトル Acta Medica Okayama
発行日 2023-04
巻 77巻
号 2号
出版者 Okayama University Medical School
開始ページ 121
終了ページ 129
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 Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 37094949
Web of Science KeyUT 000982503800001
フルテキストURL fulltext.pdf
著者 Imura, Yuki| Michibata, Takuro|
キーワード cloud phase partitioning precipitation microphysics climate
発行日 2022-12
出版物タイトル Journal Of Advances In Modeling Earth Systems
巻 14巻
号 12号
出版者 American Geophysical Union
開始ページ e2022MS003046
ISSN 1942-2466
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 © 2022 The Authors.
論文のバージョン publisher
DOI 10.1029/2022MS003046
Web of Science KeyUT 000924494800001
関連URL isVersionOf https://doi.org/10.1029/2022MS003046
フルテキストURL srfa_112_001_006.pdf
著者 Yoshida, Yuichi| Hanada, Atsushi| Ooguma, Keita| Yoshida, Kenta| Goto, Tanjuro| Tanaka, Yoshiyuki| Yasuba, Ken-ichiro|
抄録 Long day (LD) treatment is frequently applied for horticultural crops, including strawberry, and sufficient effect similar to 4 to 6hours of day time elongation in the evening can be achieved by 1 to 3hours of night break in the mid night. Incandescent lamps (IC) have long been an important light source, but the general incandescent lamps are out of production and have been replaced with LED or florescent lamps (FL). Thus, we compared light sources and their color temperature (2,800K, warm white similar to IC; 6,500K, daylight) in different lighting programs. The effectiveness of 3 and 4cycles of alternate intermittent lighting, 30min on/30min off, were equal to and larger than 2hours of night break, respectively. Measured intensity of illumination (lux) at the canopy surface by 2,800K LED (6.9W) and FL (12W) was 1.50 and 0.95times as large as IC (54W), but leaf growth under LED and FL was similar to and less vigorous than IC, respectively. On the other hand, intensity values of illumination by 6,500K LED (6.9W) and FL (12W) were both 1.20times as large as 2,800K ones, but 6,500K light sources were much less effective compared to 2,800K ones. Daylight type LED and FL which have higher luminance efficiency but emit less red light compared to warm white ones, are not suitable as alternative light sources for IC.
キーワード daylight Fragaria ×ananassa Duch. intermittent lighting luminance efficiency warm white
出版物タイトル 岡山大学農学部学術報告
発行日 2023-02-01
巻 112巻
開始ページ 1
終了ページ 6
ISSN 2186-7755
言語 日本語
論文のバージョン publisher
JaLCDOI 10.18926/AMO/64035
フルテキストURL 76_5_541.pdf
著者 Akebi, Toru| Matsugaki, Ryutaro| Ono, Toshiro|
抄録 The purpose of this study was to conduct a self-reported questionnaire survey of work-related musculoskeletal disorders (WMSDs) among Japanese radiological technologists (RTs) and to report on the relationship between wearing a lead apron and WMSDs. Between February and April of 2021, RTs in Okayama Prefecture, Japan, were surveyed by mail and through a website. Information on individual characteristics, physical factors at work, and the presence of WMSDs were collected. All participants were also asked whether they frequently wore lead aprons. A multiple logistic regression analysis was used to assess the relationship between wearing a lead apron and WMSDs. The model was adjusted for age, sex, body mass index (BMI), and working hours. Of the 123 participants, 67 (54.5%) had WMSDs. Multiple logistic regression analysis revealed that WMSDs were significantly associated with wearing a lead apron. Compared to the “Never wear” group, the odds ratios for the “Always/Frequently wear” and “Sometimes/Rarely wear” groups were 7.87 (95% confidence interval [CI]=1.28-48.46; p=0.026) and 7.80 (95% CI=1.43-42.44; p=0.017), respectively. Our analysis suggests that wearing a lead apron is associated with WMSDs, and thus design modifications in lead aprons may improve the occupational health management of RTs.
キーワード work-related musculoskeletal disorders radiological technologists lead apron questionnaire survey multiple logistic regression analysis
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-10
巻 76巻
号 5号
出版者 Okayama University Medical School
開始ページ 541
終了ページ 545
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 Ⓒ 2022 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 36352801
Web of Science KeyUT 000884907100007
フルテキストURL fulltext20220309-1.pdf
著者 Ikeda, Hajime|
キーワード Alpine plants Dispersal Genetic divergence East Asia Phylogeography
発行日 2022-2-15
出版物タイトル Journal of Plant Research
巻 135巻
号 2号
出版者 Springer Science and Business Media LLC
ISSN 0918-9440
NCID AA10900218
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) 2022
論文のバージョン publisher
PubMed ID 35166981
DOI 10.1007/s10265-022-01377-w
Web of Science KeyUT 000755410100001
関連URL isVersionOf https://doi.org/10.1007/s10265-022-01377-w
JaLCDOI 10.18926/AMO/63206
フルテキストURL 76_1_33.pdf
著者 Zhou, Jia-Yi| Hou, Hai-Tao| Wang, Shi-Fu| Yang, Qin| He, Guo-Wei|
抄録 Trace elements selenium (Se) and cobalt (Co) are essential in the human body, and a correlation between Se and cardiac surgery has been suggested. We investigated the plasma concentrations of Se and Co during and after coronary artery bypass grafting (CABG) surgery under cardiopulmonary bypass (CPB). From December 2019 to January 2020, preoperative plasma samples from isolated first-time CABG patients (n=20; 10 males, 10 females) were prospectively collected post-anesthesia and before CPB (T1), 45 min after CPB started (T2), 90 min after CPB started (T3), and postoperative days 1 (T4), and day 4 (T5). The plasma concentrations of Se and Co were measured. The Se concentration was significantly decreased at T2 (105.24±4.08 vs. 68.56±2.42 μg/L, p<0.001) and T3 (105.24±4.08 vs. 80.41±3.40 μg/L, p<0.001). The Co concentration was significantly decreased at T4 (0.35±0.19 vs. 0.26±0.13 μg/L, p<0.01) and T5 (0.35±0.19 vs. 0.23±0.11 μg/L, p<0.001). Five patients developed atrial fibrillation (AF); there was no other operative mortality or major morbidity. This is the first report of alterations of plasma Se and Co concentrations during and after CABG surgery. Our results may indicate that Se supplementation before or during CABG and Co supplementation after CABG may become necessary for patients undergoing CABG.
キーワード trace element CABG cardiopulmonary bypass selenium cobalt
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-02
巻 76巻
号 1号
出版者 Okayama University Medical School
開始ページ 33
終了ページ 39
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 Ⓒ 2022 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 35236996
Web of Science KeyUT 000762812700005
フルテキストURL K0006489_abstract_review.pdf K0006489_fulltext.pdf
著者 足立 優司|
発行日 2021-09-24
資料タイプ 学位論文
学位授与番号 甲第6489号
学位授与年月日 2021-09-24
学位・専攻分野 博士(理学)
授与大学 岡山大学
言語 日本語
JaLCDOI 10.18926/AMO/62813
フルテキストURL 75_6_725.pdf
著者 Matsumoto, Hiroshi| Kimata, Yoshihiro| Ota, Tomoyuki| Sugiyama, Narushi| Onoda, Satoshi| Makino, Takuma| Takeda, Seiko| Mizukawa, Nobuyoshi|
抄録 The long-term changes in tissues implanted in the oral cavity and pharynx after head and neck reconstruction have not been fully evaluated. This study aimed to clarify the morphological changes, long-term durability, and potential for secondary carcinogenesis in such tissues. In our single-center study, the rough morphological changes in 54 cases of intraoral and pharyngeal skin and mucosal flaps were evaluated more than 10 years after flap transfer. In addition, the literature on the development of second carcinomas from skin flaps was reviewed. The mean follow-up period for transferred flaps was 148 months. The reconstruction areas and the probability of morphological changes were significantly correlated (p=0.006), especially in cases with tongue, lower gingiva, and buccal mucosal reconstruction. Free jejunal flap surfaces were well maintained, whereas tubed skin flaps showed severe morphological changes in cases with pharyngeal reconstruction. None of the flaps in our series developed second primary carcinomas. Skin flaps generally had good durability for > 10 years in intraoral environments, while mucosal flaps had better durability for pharyngeal reconstruction. Second squamous carcinomas arising from skin flaps are extremely rare; however, surgeons should take this possibility into consideration and conduct meticulous and long-term follow-up.
キーワード skin flap mucosal flap oral reconstruction morphological change second primary carcinoma
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2021-12
巻 75巻
号 6号
出版者 Okayama University Medical School
開始ページ 725
終了ページ 734
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 Ⓒ 2021 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 34955541
NAID 120007180279
フルテキストURL fulltext.pdf
著者 Matsumoto, Masakazu| Yagasaki, Takuma| Tanaka, Hideki|
備考 This fulltext is available in March 2022.|
発行日 2021-03-01
出版物タイトル The Journal of Chemical Physics
巻 154巻
号 9号
出版者 AIP Publishing
開始ページ 094502
ISSN 0021-9606
NCID AA00694991
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
論文のバージョン publisher
PubMed ID 33685157
DOI 10.1063/5.0044300
Web of Science KeyUT 000630524700002
関連URL isVersionOf https://doi.org/10.1063/5.0044300
フルテキストURL fulltext.pdf
著者 Tanaka, Hideki| Yagasaki, Takuma| Matsumoto, Masakazu|
発行日 2020-12-17
出版物タイトル The Planetary Science Journal
巻 1巻
号 3号
出版者 IOP Publishing
開始ページ 80
ISSN 2632-3338
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 © 2020. The Author(s).
論文のバージョン publisher
DOI 10.3847/PSJ/abc3c0
関連URL isVersionOf https://doi.org/10.3847/PSJ/abc3c0
フルテキストURL fulltext.pdf
著者 Potiszil, Christian| Tanaka, Ryoji| Kobayashi, Katsura| Kunihiro, Tak| Nakamura, Eizo|
キーワード Hayabusa2 Ryugu Sample return Organic matter Albedo. Astrobiology 20, 916–921
発行日 2020-07-08
出版物タイトル Astrobiology
巻 20巻
号 7号
出版者 Mary Ann Liebert
開始ページ 916
終了ページ 921
ISSN 1531-1074
NCID AA11837332
資料タイプ 学術雑誌論文
言語 英語
著作権者 © Christian Potiszil et al., 2020
論文のバージョン publisher
PubMed ID 32543220
DOI 10.1089/ast.2019.2198
Web of Science KeyUT 000541711900001
関連URL isVersionOf https://doi.org/10.1089/ast.2019.2198
フルテキストURL 74_6_563.pdf
Amo Type Erratum
出版物タイトル Acta Medica Okayama
発行日 2020-12
巻 74巻
号 6号
出版者 Okayama University Medical School
開始ページ 563
終了ページ 563
ISSN 0386-300X
NCID AA00508441
資料タイプ その他
言語 英語
著作権者 CopyrightⒸ 2020 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 33361879
Web of Science KeyUT 000601203600015