検索結果 483 件
| フルテキストURL | fulltext20231025-01.pdf |
|---|---|
| 著者 | Tsunata, Ren| Takemoto, Masatsugu| Imai, Jun| Saito, Tatsuya| Ueno, Tomoyuki| |
| キーワード | Aspect ratio axial-flux machine axial-gap motor cooling high efficiency mass production PMSM radial-flux machine soft magnetic composite thermal characteristic |
| 備考 | © 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.| This fulltext file will be available in Mar. 2025.| |
| 発行日 | 2023-03-13 |
| 出版物タイトル | IEEE Transactions on Industry Applications |
| 巻 | 59巻 |
| 号 | 3号 |
| 出版者 | Institute of Electrical and Electronics Engineers (IEEE) |
| 開始ページ | 3353 |
| 終了ページ | 3367 |
| ISSN | 0093-9994 |
| NCID | AA00667900 |
| 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 IEEE. |
| 論文のバージョン | author |
| DOI | 10.1109/tia.2023.3255845 |
| Web of Science KeyUT | 001061319100099 |
| 関連URL | isVersionOf https://doi.org/10.1109/tia.2023.3255845 |
| フルテキストURL | fulltext.pdf |
|---|---|
| 著者 | Shinoda, Sumio| |
| キーワード | COVID-19 SARS-CoV-2 vaccine Spanish flu influenza |
| 発行日 | 2022-01-30 |
| 出版物タイトル | Journal of Disaster Research |
| 巻 | 17巻 |
| 号 | 1号 |
| 出版者 | Fuji Technology Press Ltd. |
| 開始ページ | 65 |
| 終了ページ | 72 |
| ISSN | 1883-8030 |
| 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 | © Fuji Technology Press Ltd. |
| 論文のバージョン | publisher |
| DOI | 10.20965/jdr.2022.p0065 |
| Web of Science KeyUT | 000748695600008 |
| 関連URL | isVersionOf https://doi.org/10.20965/jdr.2022.p0065 |
| フルテキストURL | fulltext.pdf |
|---|---|
| 著者 | Shimooka, So| Akagi, Tetsuya| Dohta, Shujiro| Shinohara, Takashi| Kobayashi, Takumi| |
| キーワード | spiral shaped soft holding actuator extension type flexible pneumatic actuator circumference restraint mechanism analytical model |
| 発行日 | 2022-04-20 |
| 出版物タイトル | Journal of Robotics and Mechatronics |
| 巻 | 34巻 |
| 号 | 2号 |
| 出版者 | Fuji Technology Press Ltd. |
| 開始ページ | 373 |
| 終了ページ | 381 |
| ISSN | 1883-8049 |
| 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 | © Fuji Technology Press Ltd. |
| 論文のバージョン | publisher |
| DOI | 10.20965/jrm.2022.p0373 |
| Web of Science KeyUT | 000795878000037 |
| 関連URL | isVersionOf https://doi.org/10.20965/jrm.2022.p0373 |
| フルテキストURL | fulltext.pdf |
|---|---|
| 著者 | Ono, Fumiaki| Okihara, Takumi| Osaka, Noboru| Nagaoka, Noriyuki| Kameoka, Yuji| Ishikawa, Akira| Ooki, Hironari| Ito, Takumi| Todome, Daisuke| Uemoto, Shinya| Furutani, Mitsuaki| Inokuchi, Tsutomu| Okada, Kenji| |
| 発行日 | 2022-01-26 |
| 出版物タイトル | RSC Advances |
| 巻 | 12巻 |
| 号 | 6号 |
| 出版者 | Royal Society of Chemistry (RSC) |
| 開始ページ | 3300 |
| 終了ページ | 3308 |
| ISSN | 2046-2069 |
| 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 Author(s). |
| 論文のバージョン | publisher |
| PubMed ID | 35425348 |
| DOI | 10.1039/d1ra08716a |
| Web of Science KeyUT | 000746872200001 |
| 関連URL | isVersionOf https://doi.org/10.1039/d1ra08716a |
| フルテキストURL | fulltext.pdf |
|---|---|
| 著者 | Tsunata, Ren| Yokomichi, Keito| Takemoto, Masatsugu| Imai, Jun| |
| キーワード | Variable flux memory motor hybrid excitation motor traction applications EV HEV six-step operation one-pulse drive output power density |
| 発行日 | 2023-08-03 |
| 出版物タイトル | IEEE Access |
| 巻 | 11巻 |
| 出版者 | Institute of Electrical and Electronics Engineers |
| 開始ページ | 82024 |
| 終了ページ | 82036 |
| ISSN | 2169-3536 |
| 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 |
| DOI | 10.1109/ACCESS.2023.3301809 |
| Web of Science KeyUT | 001047221300001 |
| 関連URL | isVersionOf https://doi.org/10.1109/ACCESS.2023.3301809 |
| JaLCDOI | 10.18926/AMO/65752 |
|---|---|
| フルテキストURL | 77_4_415.pdf |
| 著者 | Jelcic, Dzenis| Puzovic, Velibor| Benzon, Benjamin| Palada, Ivan| Jerković, Jelena| Vulic, Marko| |
| 抄録 | The aim of our study was to determine whether the immunohistochemical expression of placental vitamin D receptors is altered in pregnancies complicated by preeclampsia. Vitamin D receptor expression was immunohistochemically analysed in the placentas of three groups: a control group, and early- and late-onset preeclampsia groups. Total immunohistochemical intensity staining of placentas showed that the control group had a median vitamin D receptor (VDR) expression significantly higher than the placentas of mothers with early- and late-onset preeclampsia. There was no difference among the three groups in a semiquantitative analysis of VDR staining of the stroma only. Vitamin D receptors showed lower median expression in preeclampsia-affected pregnancies, especially early-onset preeclampsia. Therefore, Vitamin D receptor expression may be an important marker for normal placentation and preeclampsia onset. |
| キーワード | vitamin D receptor immunohistochemistry early and late-onset preeclampsia |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2023-08 |
| 巻 | 77巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 415 |
| 終了ページ | 422 |
| 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 | 37635142 |
| Web of Science KeyUT | 001163659800006 |
| JaLCDOI | 10.18926/AMO/65750 |
|---|---|
| フルテキストURL | 77_4_395.pdf |
| 著者 | Pavlovic, Marko| Babic, Dragan| Rastovic, Pejana| Arapovic, Jurica| Martinac, Marko| Jakovac, Sanja| Barbaric, Romana| |
| 抄録 | We investigated the relationship between serum tumor necrosis factor-alpha (TNF-α) levels and psychopathological symptoms, clinical and socio-demographic characteristics and antipsychotic therapy in individuals with schizophrenia. TNF-α levels were measured in 90 patients with schizophrenia and 90 healthy controls matched by age, gender, smoking status, and body mass index. The Positive and Negative Syndrome Scale (PANSS) was used to assess the severity of psychopathology in patients. No significant differences in TNF-α levels were detected between the patients and controls (p=0.736). TNF-α levels were not correlated with total, positive, negative, general, or composite PANSS scores (all p>0.05). A significant negative correlation was observed between TNF-α levels and the PANSS cognitive factor (ρ=−0.222, p=0.035). A hierarchical regression analysis identified the cognitive factor as a significant predictor of the TNF-α level (beta=−0.258, t=−2.257, p=0.027). There were no significant differences in TNF-α levels among patients treated with different types of antipsychotics (p=0.596). TNF-α levels correlated positively with the age of onset (ρ=0.233, p=0.027) and negatively with illness duration (ρ=−0.247, p=0.019) and antipsychotic treatment duration (ρ=−0.256, p=0.015). These results indicate that TNF-α may be involved in cognitive impairment in schizophrenia, and would be a potential clinical-state marker in schizophrenia. |
| キーワード | tumor necrosis factor-alpha schizophrenia psychopathology immune system |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2023-08 |
| 巻 | 77巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 395 |
| 終了ページ | 405 |
| 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 | 37635140 |
| Web of Science KeyUT | 001163659800010 |
| JaLCDOI | 10.18926/AMO/65745 |
|---|---|
| フルテキストURL | 77_4_365.pdf |
| 著者 | Moldovan, Elena| Bănescu, Claudia| Cucerea, Manuela| Moldovan, Valeriu| Gozar, Liliana| Pușcașiu, Lucian| |
| 抄録 | Congenital heart disease is the most common malformative pathology in newborns, with a worldwide incidence at 0.4-5%. We investigated the possible relationship between variations in nucleotide sequences and specific cardiac malformations in the GATA-binding factor 4 (GATA4) exon 1 region by using Sanger sequencing. Forty-four newborns from a third-level neonatal intensive care unit who were diagnosed with nonsyndromic, ductal-dependent congenital heart disease (i.e., transposition of the great arteries or ductal-dependent coarctation of the aorta) were enrolled. Their DNA was extracted using commercial methods and tested using the multiplex ligation-dependent probe amplification (MLPA) technique. The Sanger sequencing for GATA4 exon 1 in the newborns’ DNA identified rs61277615, rs73203482, and rs35813172 variants not reported in the ClinVar archive of human variations in newborns previously diagnosed with transposition of the great arteries (n=5) and coarctation of the aorta (n=1). The identification of these novel variants in newborns with transposition of the great arteries or ductal-dependent coarctation of the aorta may be the first step in determining the variants’ contribution to the occurrence of congenital heart disease. However, these results may be inconclusive, since the observed variants within GATA4 gene were not previously reported. |
| キーワード | transposition of the great arteries ductal-dependent coarctation of the aorta GATA4 MLPA Sanger sequencing |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2023-08 |
| 巻 | 77巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 365 |
| 終了ページ | 370 |
| 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 | 37635136 |
| Web of Science KeyUT | 001163659800008 |
| フルテキストURL | fulltext.pdf |
|---|---|
| 著者 | Higuchi, Chigusa| Matsumoto, Naomi| Iwasaki, Yoshiaki| Yorifuji, Takashi| Yamazaki, Junichiro| Nasu, Yasutomo| Makino, Hirofumi| |
| キーワード | COVID-19 vaccine vaccine hesitancy young adults information literacy satisfaction |
| 発行日 | 2022-01-30 |
| 出版物タイトル | Journal of Disaster Research |
| 巻 | 17巻 |
| 号 | 1号 |
| 出版者 | Fuji Technology Press Ltd. |
| 開始ページ | 21 |
| 終了ページ | 30 |
| ISSN | 1883-8030 |
| 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 | © Fuji Technology Press Ltd. |
| 論文のバージョン | publisher |
| DOI | 10.20965/jdr.2022.p0021 |
| Web of Science KeyUT | 000748695600003 |
| 関連URL | isVersionOf https://doi.org/10.20965/jdr.2022.p0021 |
| フルテキストURL | fulltext.pdf |
|---|---|
| 著者 | Gohda, Eiichi| |
| キーワード | COVID-19 SARS-CoV-2 mRNA vaccine immune response |
| 発行日 | 2022-01-30 |
| 出版物タイトル | Journal of Disaster Research |
| 巻 | 17巻 |
| 号 | 1号 |
| 出版者 | Fuji Technology Press Ltd. |
| 開始ページ | 7 |
| 終了ページ | 20 |
| ISSN | 1883-8030 |
| 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 | © Fuji Technology Press Ltd. |
| 論文のバージョン | publisher |
| DOI | 10.20965/jdr.2022.p0007 |
| Web of Science KeyUT | 000748695600002 |
| 関連URL | isVersionOf https://doi.org/10.20965/jdr.2022.p0007 |
| フルテキストURL | fulltext.pdf |
|---|---|
| 著者 | Fujii, Shota| Sato, Takayuki| Aoki, Sho| Tsuda, Yu| Kawaguchi, Nobutaka| Shigemoto, Tomohiro| Terada, Masato| |
| キーワード | Cloaking cyber security geofencing malcious host time-series |
| 発行日 | 2023-05-29 |
| 出版物タイトル | IEEE Access |
| 巻 | 11巻 |
| 出版者 | Institute of Electrical and Electronics Engineers |
| 開始ページ | 52750 |
| 終了ページ | 52762 |
| ISSN | 2169-3536 |
| 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 |
| DOI | 10.1109/ACCESS.2023.3280815 |
| Web of Science KeyUT | 001005635100001 |
| 関連URL | isVersionOf https://doi.org/10.1109/ACCESS.2023.3280815 |
| フルテキストURL | fulltext20230619-05.pdf |
|---|---|
| 著者 | Imajo, Satoshi| Tanabe, Yoshinori| Nakamura, Nobue| Honda, Mitsugi| Kuroda, Masahiro| |
| キーワード | panoramic radiography quantitative evaluation deformable image registration peak signal-to-noise ratio |
| 発行日 | 2023-05-04 |
| 出版物タイトル | Polish Journal of Medical Physics and Engineering |
| 巻 | 29巻 |
| 号 | 2号 |
| 出版者 | Sciendo |
| 開始ページ | 85 |
| 終了ページ | 91 |
| ISSN | 1898-0309 |
| 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 Satoshi Imajo et al. |
| 論文のバージョン | publisher |
| DOI | 10.2478/pjmpe-2023-0010 |
| Web of Science KeyUT | 000981963000001 |
| 関連URL | isVersionOf https://doi.org/10.2478/pjmpe-2023-0010 |
| JaLCDOI | 10.18926/AMO/65496 |
|---|---|
| フルテキストURL | 77_3_311.pdf |
| 著者 | Miura, Takanori| Kijima, Hiroaki| Tazawa, Hiroshi| Miyakoshi, Naohisa| |
| 抄録 | Japan’s hip fracture management guidelines now recommend the use of cemented stems in cases of bone fragility. However, the current stem selection practices in bipolar hemiarthroplasty (BHA) in a super-aging area in Japan remain unclear. This study aimed to examine the stem selection policies, the surgeons’ concerns about cemented stems, and factors affecting their confidence in their ability to coach others on cemented stem procedures. Ninety-four orthopedic surgeons (27 facilities) responded to our web-based questionnaire conducted in January/February 2022. Cementless stem was the first choice of 97.8% of the surgeons; <15% of the respondents expected to increase their use of cemented stems in the future. The cement technique was the greatest concern; almost half of the surgeons described having insufficient experience with cemented stems. The factor that most affected the surgeons’ expertise in using cemented stems is the number of surgeries they had conducted with a cemented stem (multivariable analysis odds ratio 8.42, p=0.001). Greater experience was associated with increased expertise of the surgeons in using cemented stems, with a threshold of 11 cases showing sensitivity of 41.7% and specificity of 98.3% for their confidence to instruct cemented stems. |
| キーワード | hip fracture arthroplasty bone cement questionnaire |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2023-06 |
| 巻 | 77巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 311 |
| 終了ページ | 318 |
| 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 | 37357632 |
| Web of Science KeyUT | 001026279600009 |
| タイトル（別表記） | ERRATA: FDM simulation of long-period ground motions around Oita Prefecture, Japan, using a land-ocean unified 3D structure model |
|---|---|
| フルテキストURL | esr_029_065_066.pdf |
| 著者 | 奥仲 達也| 小松 正直| 竹中 博士| 吉見 雅行| 中村 武史| 岡元 太郎| |
| 出版物タイトル | Okayama University Earth Science Report |
| 発行日 | 2023-03-31 |
| 巻 | 29巻 |
| 号 | 1号 |
| 開始ページ | 65 |
| 終了ページ | 66 |
| ISSN | 1340-7414 |
| 言語 | 日本語 |
| 著作権者 | © 2023 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| 論文のバージョン | publisher |
| フルテキストURL | fulltext.pdf |
|---|---|
| 著者 | Supitayakul, Parisa| Yücel, Zeynep | Monden, Akito| |
| キーワード | Visualization Electronic learning Task analysis Estimation Vocabulary Memory management Learning (artificial intelligence) E-learning neural networks artificial intelligence cognitive theory of multimedia learning cognitive load distinctiveness account perceptual decoupling adaptability educational data mining |
| 発行日 | 2023-04-13 |
| 出版物タイトル | IEEE Access |
| 巻 | 11巻 |
| 出版者 | Institute of Electrical and Electronics Engineers |
| 開始ページ | 39466 |
| 終了ページ | 39483 |
| ISSN | 2169-3536 |
| 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 |
| DOI | 10.1109/ACCESS.2023.3266731 |
| Web of Science KeyUT | 000979583700001 |
| 関連URL | isVersionOf https://doi.org/10.1109/ACCESS.2023.3266731 |
| JaLCDOI | 10.18926/AMO/65144 |
|---|---|
| フルテキストURL | 77_2_147.pdf |
| 著者 | Arias, Zulema| Haines, Stephanie| Yamamoto, Tadashi| Hatanaka, Kazu| Yamashiro, Keisuke| Sonoi, Norihiro| Takashiba, Shogo| |
| 抄録 | The curriculum at the Department of Pathophysiology in the Periodontal Sciences program at Okayama University includes normative preclinical training (NPT) using phantoms. NPT is given to the whole class of 5 th year students divided in groups of 8 students/instructor. In 2019, an innovative personalized preclinical training (PPT) pilot study was implemented for this group of students whereby two students, each with their own dental unit, were coached by one instructor. The main topics covered were dental ergonomics and endodontics. We aimed to evaluate the effectiveness of PPT in dental ergonomics and endodontics toward increasing the knowledge and future clinical skills of students who had already undergone NPT. A test on endodontics was taken before and after PPT. A questionnaire was completed to assess their perception of improvement regarding the above-mentioned topics. Test scores and questionnaire results both showed that the students’ level of knowledge and awareness of future clinical skills was significantly higher after PPT. This pilot study demonstrated that PPT increased the students’ knowledge and future clinical skills. As preclinical training forms the foundation for clinical practice, investment in future research regarding this personalized approach is likely to enhance students’ understanding and clinical performance. |
| キーワード | preclinical personalized education dental ergonomics endodontics clinical skills improvement undergraduate students |
| 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 | 147 |
| 終了ページ | 159 |
| 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 | 37094952 |
| Web of Science KeyUT | 000982503800004 |
| フルテキストURL | fulltext.pdf |
|---|---|
| 著者 | Suzuki, Etsuji| Yamamoto, Eiji| |
| キーワード | attributable fraction counterfactual model excess fraction preventable fraction prevented fraction vaccine efficacy |
| 発行日 | 2023-02-24 |
| 出版物タイトル | Journal of Causal Inference |
| 巻 | 11巻 |
| 号 | 1号 |
| 出版者 | De Gruyter |
| ISSN | 2193-3677 |
| 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 author(s) |
| 論文のバージョン | publisher |
| DOI | 10.1515/jci-2021-0068 |
| Web of Science KeyUT | 000938059600001 |
| 関連URL | isVersionOf https://doi.org/10.1515/jci-2021-0068 |
| JaLCDOI | 10.18926/AMO/64365 |
|---|---|
| フルテキストURL | 77_1_75.pdf |
| 著者 | Iwamuro, Masaya| Tanaka, Takehiro| Hamada, Kenta| Kono, Yoshiyasu| Kanzaki, Hiromitsu| Kawano, Seiji| Kawahara, Yoshiro| Okada, Hiroyuki| |
| 抄録 | Herein, we report two patients with autoimmune gastritis who had undergone multiple esophagogastroduodenoscopy procedures for 17 and 9 years, respectively, before their diagnosis. Instead, they had been diagnosed with and treated for Helicobacter pylori-associated gastritis. The correct diagnosis was made when scatterings of tiny whitish protrusions in the gastric mucosa were detected on esophagogastroduodenoscopy. Our findings suggest that scattered tiny whitish bumps may be a clue to the diagnosis of autoimmune gastritis. |
| キーワード | autoimmune gastritis esophagogastroduodenoscopy scattered lesions small white protrusions mucosal lesions |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2023-02 |
| 巻 | 77巻 |
| 号 | 1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 Ⓒ 2023 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 36849149 |
| Web of Science KeyUT | 000952973200001 |
| JaLCDOI | 10.18926/AMO/64122 |
|---|---|
| フルテキストURL | 76_6_715.pdf |
| 著者 | Mohammed Zahedul Islam Nizami| Gorduysus, Melahat| Shinoda-Ito, Yuki| Yamamoto, Tadashi| Nishina, Yuta| Takashiba, Shogo| Arias, Zulema| |
| 抄録 | The failure of endodontic treatment is directly associated with microbial infection in the root canal or periapical areas. An endodontic sealer that is both bactericidal and biocompatible is essential for the success of root canal treatments. This is one of the vital issues yet to be solved in clinical dental practice. This in vitro study assessed the effectiveness of graphene oxide (GO) composites GO-CaF2 and GO-Ag-CaF2 as endodontic sealer materials. Dentin slices were coated with either the GO-based composites or commonly used root canal sealers (non-eugenol zinc oxide sealer). The coated slices were treated in 0.9% NaCl, phosphate-buffered saline (PBS), and simulated body fluid (SBF) at 37˚C for 24 hours to compare their sealing effect on the dentin surface. In addition, the radiopacity of these composites was examined to assess whether they complied with the requirements of a sealer for good radiographic visualization. Scanning electron microscopy showed the significant sealing capability of the composites as coating materials. Radiographic images confirmed their radiopacity. Mineral deposition indicated their bioactivity, especially of GO-Ag-CaF2, and thus it is potential for regenerative application. They were both previously shown to be bactericidal to oral microbes and cytocompatible with host cells. With such a unique assemblage of critical properties, these GO-based composites show promise as endodontic sealers for protection against reinfection in root canal treatment and enhanced success in endodontic treatment overall. |
| キーワード | bioactive sealer graphene oxide mineral deposition antimicrobial activity radiopacity |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2022-12 |
| 巻 | 76巻 |
| 号 | 6号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 715 |
| 終了ページ | 721 |
| 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 | 36549774 |
| Web of Science KeyUT | 000905195100012 |
| JaLCDOI | 10.18926/AMO/64115 |
|---|---|
| フルテキストURL | 76_6_651.pdf |
| 著者 | Bright Osman Abugri| Matsusaki, Takashi| Ren, Wanxu| Morimatsu, Hiroshi| |
| 抄録 | Maintaining perioperative normothermia decreases the post-surgery surgical site infection (SSI) rate. We investigated whether SSI is associated with intraoperative hypothermia in total hip (THA) and total knee (TKA) arthroplasties by retrospectively analyzing 297 THA and TKA cases. The patients’ intraoperative core body temperature (BT) was measured by bladder catheter or forehead sensor. We evaluated the associations between SSI and intraoperative BT and other variables and patient characteristics. Fifty-six patients (18.8%) had hypothermia (BT <36°C); 43 developed SSI (14.5%); only five had hypothermia (11.6%). Intraoperative hypothermia and SSI were not significantly associated. The SSI group had more men (34.9% vs. 18.1%) and THA patients (77.4%), a longer mean surgical duration (174.3 vs. 143.5 mins), and a higher average BT (36.4°C vs. 36.2°C) than the no-SSI group. The SSI patients had a higher intraoperative BT. A multivariable analysis revealed that SSI was associated with male sex (OR 2.3, 95%CI: 1.031-4.921, p=0.042), longer surgery (OR, 1.01, 95%CI: 1.003-1.017, p=0.004), THA (OR 3.6, 95%CI: 1.258-10.085, p=0.017), and intraoperative BT >36.0°C (OR 3.6, 95%CI: 1.367-9.475, p=0.009). Intraoperative hypothermia was not associated with SSI in adults who underwent THA or TKA. These results suggest that hypothermia might not be the problem for SSI. |
| キーワード | hypothermia surgical site infection total hip arthroplasty (THA) knee arthroplasty (TKA) |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2022-12 |
| 巻 | 76巻 |
| 号 | 6号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 651 |
| 終了ページ | 660 |
| 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 | 36549767 |
| Web of Science KeyUT | 000905195100005 |