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JaLCDOI 10.18926/AMO/64038
フルテキストURL 76_5_565.pdf
著者 Komagoe, Sho| Senoo, Takaya| Takao, Soshi| Shiraishi, Yoshinori| Matsumoto, Hiroshi| Kimata, Yoshihiro|
抄録 We herein introduce horizontal vector analysis, a simple method for assessing cranial morphology based on measurement of the head’s horizontal plane, and use this method to establish normal cranial morphology in Japanese children Computed tomography scans taken in 2010-2019 in healthy Japanese children aged ≤ 6 years. The two measurement planes were parallel to the orbitomeatal plane: namely, a plane passing through the dorsum sellae (DS) and the plane superior to that with the maximal area (Max plane). A protractor was used to circumferentially measure the lengths from the central point to the outer surface of the skull. A total of 487 images were extracted. The distances between the DS and Max planes were consistently almost 30 mm for each age group, so we fixed the Max plane as the plane 30 mm superior to the DS plane. Finally, we established datasets of normal values for each age group and sex. Using these norms, perioperative evaluation of various cranial deformities could be performed more easily and circumstantially.
キーワード craniofacial surgery craniosynostoses horizontal plane Japanese children reference values
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-10
76巻
5号
出版者 Okayama University Medical School
開始ページ 565
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 Ⓒ 2022 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 36352804
Web of Science KeyUT 000884907100010
JaLCDOI 10.18926/AMO/64037
フルテキストURL 76_5_557.pdf
著者 Pan, Yu| Song, Qingqing| Kanazawa, Tomoyuki| Morimatsu, Hiroshi|
抄録 Some pediatric cardiac patients might experience low regional cerebral oxygen saturation (rSO2) during surgery. We investigated whether a pediatric patient’s mean arterial pressure (MAP) can affect the rSO2 value during cardiopulmonary bypass (CPB). We retrospectively analyzed the cases of the pediatric patients who underwentcardiac surgery at our hospital (Jan. –Dec. 2019; n=141). At each MAP stage, we constructed line charts through the mean of the rSO2 values corresponding to each MAP and then calculated the correlation coefficients. We next divided the patients into age subgroups (neonates, infants, children) and into cyanotic congenital heart disease (CHD) and acyanotic CHD groups and analyzed these groups in the same way. The analyses of all 141 patients revealed that during CPB the rSO2 value increased with an increase in MAP (r=0.1626). There was a correlation between rSO2 and MAP in the children (r=0.2720) but not in the neonates (r=0.06626) or infants (r=0.05260). Cyanotic CHD or acyanotic CHD did not have a significant effect on the rSO2/MAP correlation. Our analysis demonstrated different patterns of a correlation between MAP and rSO2 in pediatric cardiac surgery patients, depending on age. MAP was positively correlated with rSO2 typically in children but not in neonate or infant patients.
キーワード mean arterial pressure cerebral oxygen saturation
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-10
76巻
5号
出版者 Okayama University Medical School
開始ページ 557
終了ページ 564
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 36352803
Web of Science KeyUT 000884907100009
JaLCDOI 10.18926/AMO/64033
フルテキストURL 76_5_527.pdf
著者 Makihara, Seiichiro| Kariya, Shin| Miyamoto, Shotaro| Uraguchi, Kensuke| Oka, Aiko| Tsumura, Munechika| Noda, Yohei| Ando, Mizuo| Okano, Mitsuhiro|
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-10
76巻
5号
出版者 Okayama University Medical School
開始ページ 527
終了ページ 533
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 36352799
Web of Science KeyUT 000884907100005
JaLCDOI 10.18926/AMO/64032
フルテキストURL 76_5_519.pdf
著者 Ishioka, Yoko| Yamashita, Hiroyuki| Hamaguchi, Kinya| Kuwahara, Yoshitaka| Nakamura, Kaoru| Nakatsuka, Mikiya|
抄録 To examine the outcome of gestational blood pressure and birth weight in women with normal pre-pregnancy BMI (18.5-25 kg/m2) who are at the lower and upper limits of this range, i.e., slightly underweight or slightly overweight. Overall, 2,038 Japanese women with low -risk who had delivered during January 2014–December 2016 were classified according to their pre-pregnancy BMI: underweight (< 18.5 kg/m2), slightly underweight (18.5≤BMI<21 kg/m2), normal (21≤BMI<23 kg/m2), slightly overweight (23≤BMI<25 kg/m2) and overweight (≤ 25 kg/m2). Their blood pressure during each trimester and birth weight was evaluated. The slightly overweight group showed a significantly higher blood pressure than the underweight and slightly underweight groups. Birth weight was lower in the slightly underweight than in the slightly overweight group (p<0.01). The incidence rate of “heavy for dates” (HFD) infants was significantly higher in the slightly overweight and overweight groups than in the other groups (p<0.05 and p<0.01, respectively). Weight gain of < 7 kg significantly increased the rate of “light for dates” (LFD) infants, while a weight gain of ≥13 kg significantly increased the rate of HFD infants (p<0.05 and p<0.01, respectively). Blood pressure during pregnancy was ssociated with pre-pregnancy BMI. The birth weight of infants of low-risk pregnant women is affected by both pre-pregnancy BMI and gestational weight gain.
キーワード birth weight blood pressure normal body weight pregnancy pre-pregnancy BMI
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-10
76巻
5号
出版者 Okayama University Medical School
開始ページ 519
終了ページ 526
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 36352798
Web of Science KeyUT 000884907100004
JaLCDOI 10.18926/AMO/64031
フルテキストURL 76_5_511.pdf
著者 Tomita, Hayato| Kuramochi, Kenji| Fujikawa, Atsuko| Ikeda, Hirotaka| Komita, Midori| Kurihara, Yoshiko| Kobayashi, Yasuyuki| Mimura, Hidefumi|
抄録 Iterative reconstruction (IR) improves image quality compared with filtered back projection (FBP). This study investigated the usefulness of model-based IR (forward-projected model-based iterative reconstruction solution [FIRST]) in comparison with FBP and hybrid IR (adaptive iterative dose reduction three-dimensional processing [AIDR 3D]) in low-dose paranasal CT. Twenty-four patients with paranasal sinusitis who underwent standard-dose CT (120 kV) and low-dose CT (100 kV) scanning before and after medical treatment were enrolled. Standard-dose CT scans were reconstructed with FBP (FBP120), and low-dose CT scans with FBP (FBP100), AIDR 3D, and FIRST. The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) in three anatomical structures and effective doses were compared using Mann–Whitney U test. Two radiologists independently evaluated the visibility of 16 anatomical structures, overall image quality, and artifacts. Effective doses in lowdose CT were significantly reduced compared with those in standard-dose CT (0.24 vs 0.43 mSv, p<0.001). FIRST achieved significantly higher SNR (p<0.01, respectively) and CNR (p<0.001, respectively) of evaluated structures and significant improvement in overall image quality (p<0.001), artifacts (p<0.001), and visibility related to muscles (p<0.05) compared to FBP120, FBP100, and AIDR 3D. FIRST allowed radiation-dose reduction, while maintaining objective and subjective image quality in low-dose paranasal CT.
キーワード paranasal sinuses iterative reconstruction dose reduction low dose
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-10
76巻
5号
出版者 Okayama University Medical School
開始ページ 511
終了ページ 517
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 36352797
Web of Science KeyUT 000884907100003
JaLCDOI 10.18926/AMO/64025
フルテキストURL 76_5_503.pdf
著者 Ogawa, Hirohito| Honda, Tomoyuki|
抄録 Eukaryotic genomes contain numerous copies of endogenous viral elements (EVEs), most of which are considered endogenous retrovirus (ERV) sequences. Over the past decade, non-retroviral endogenous viral elements (nrEVEs) derived from ancient RNA viruses have been discovered. Several functions have been proposed for these elements, including antiviral defense. This review summarizes the current understanding of nrEVEs derived from RNA viruses, particularly endogenous bornavirus-like elements (EBLs) and endogenous filovirus-like elements (EFLs). EBLs are one of the most extensively studied nrEVEs. The EBL derived from bornavirus nucleoprotein (EBLN) is thought to function as a non-coding RNA or protein that regulates host gene expression or inhibits virus propagation. Ebolavirus and marburgvirus, which are filoviruses, induce severe hemorrhagic fever in humans and nonhuman primates. Although the ecology of filoviruses remains unclear, bats are believed to be potential reservoirs. Based on the knowledge from EBLs, it is postulated that EFLs in the bat genome help to maintain the balance between filovirus infection and the bat’s defense system, which may partially explain why bats act as potential reservoirs. Further research into the functions of nrEVEs could reveal novel antiviral systems and inspire novel antiviral approaches.
キーワード EVE nrEVE bornavirus filovirus antiviral
Amo Type Review
出版物タイトル Acta Medica Okayama
発行日 2022-10
76巻
5号
出版者 Okayama University Medical School
開始ページ 503
終了ページ 510
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 36352796
Web of Science KeyUT 000884907100002
JaLCDOI 10.18926/AMO/64024
フルテキストURL 76_5_489.pdf
著者 Matsumoto, Yuji| Ichikawa, Tomotsugu| Kurozumi, Kazuhiko| Date, Isao|
抄録 Glioblastoma (GBM) is a fatal primary malignant brain tumor in adults. Despite decades of research, the prognosis for GBM patients is still disappointing. One major reason for the intense therapeutic resistance of GBM is inter- and intra-tumor heterogeneity. GBM-intrinsic transcriptional profiling has suggested the presence of at least three subtypes of GBM: the proneural, classic, and mesenchymal subtypes. The mesenchymal subtype is the most aggressive, and patients with the mesenchymal subtype of primary and recurrent tumors tend to have a worse prognosis compared with patients with the other subtypes. Furthermore, GBM can shift from other subtypes to the mesenchymal subtype over the course of disease progression or recurrence. This phenotypic transition is driven by diverse tumor-intrinsic molecular mechanisms or microenvironmental factors. Thus, better understanding of the plastic nature of mesenchymal transition in GBM is pivotal to developing new therapeutic strategies. In this review, we provide a comprehensive overview of the current understanding of the elements involved in the mesenchymal transition of GBM and discuss future perspectives.
キーワード glioma glioblastoma mesenchymal subtype mesenchymal transition heterogeneity
Amo Type Review
出版物タイトル Acta Medica Okayama
発行日 2022-10
76巻
5号
出版者 Okayama University Medical School
開始ページ 489
終了ページ 502
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 36352795
Web of Science KeyUT 000884907100001
フルテキストURL fulltext.pdf
著者 Ogasahara, Tsubasa| Kouzai, Yusuke| Watanabe, Megumi| Takahashi, Akihiro| Takahagi, Kotaro| Kim, June-Sik| Matsui, Hidenori| Yamamoto, Mikihiro| Toyoda, Kazuhiro| Ichinose, Yuki| Mochida, Keiichi| Noutoshi, Yoshiteru|
キーワード Brachypodium distachyon monocotyledonous plant microbe-associated molecular pattern time-series transcriptome analysis reactive oxygen species pattern-triggered immunity
発行日 2022-09-15
出版物タイトル Frontiers In Plant Science
13巻
出版者 Frontiers Media S.A.
開始ページ 1004184
ISSN 1664-462X
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 Ogasahara, Kouzai, Watanabe, Takahashi, Takahagi, Kim, Matsui, Yamamoto, Toyoda, Ichinose, Mochida and Noutoshi.
論文のバージョン publisher
PubMed ID 36186055
DOI 10.3389/fpls.2022.1004184
Web of Science KeyUT 000863600900001
関連URL isVersionOf https://doi.org/10.3389/fpls.2022.1004184
JaLCDOI 10.18926/AMO/63907
フルテキストURL 76_4_473.pdf
著者 Tsuboi, Nobushige| Ishida, Joji| Shimazu, Yosuke| Edaki, Hisanori| Uneda, Atsuhito| Otani, Yoshihiro| Fujii, Kentaro| Kurozumi, Kazuhiko| Ennishi, Daisuke| Yanai, Hiroyuki| Date, Isao|
抄録 Glioneuronal tumor with neuropil-like islands (GNTNI) is a very rare subtype of glioneuronal tumor. We present a case of a 62-year-old man with GNTNI. Two adjacent lesions in the left parietal lobe were removed by left parietal craniotomy. The histological findings were glial cell proliferation and scattered rosettes consisting of synaptophysin-positive and NeuN-positive cells, leading to the diagnosis of GNTNI. Target sequencing revealed a genetic alteration similar to glioblastoma, IDH-wild type, which suggested adjuvant therapies. There are few previous reports on the treatment of this disease, and the patient should be followed carefully.
キーワード glioneuronal tumor with neuropil-like islands genomic profiling
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2022-08
76巻
4号
出版者 Okayama University Medical School
開始ページ 473
終了ページ 477
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 36123163
JaLCDOI 10.18926/AMO/63904
フルテキストURL 76_4_447.pdf
著者 Umemura, Hiroshi| Fukuda, Yoshiaki| Miyashita, Tetsuo| Nakayama, Tomohiro|
抄録 The erythrocyte sedimentation rate (ESR) is a widely used marker of inflammation, but the detailed mechanisms underlying the ESR remain unclear. We retrospectively collected laboratory data from our hospital’s laboratory information system, and performed multiple linear regression analysis and correlation analysis to determine relationships between the ESR and other laboratory test parameters. The alpha-2, beta-2, and gamma fractions from serum protein electrophoresis, serum immunoglobulin (Ig) G, IgA, IgM, and complement C3 levels, plasma fibrinogen levels, and platelet count showed positive effects on the ESR; however, the serum albumin level showed negative effects. Since erythrocytes are negatively charged, an increase in positively charged proteins and a decrease in negatively charged albumin were suggested to increase the ESR. Notably, C-reactive protein (CRP) showed the third-strongest correlation with the ESR despite having no significant effect on the ESR. We also reviewed cases with discordant ESR and CRP levels to compare the disease profiles of high ESR/low CRP patients and low ESR/high CRP patients. The patients with high ESR/low CRP had a completely different disease profile from those with low ESR/high CRP. Since the ESR and CRP have different roles, they should be used as markers in a context-dependent manner.
キーワード complement erythrocyte sedimentation rate fibrinogen immunoglobulin serum protein electrophoresis
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-08
76巻
4号
出版者 Okayama University Medical School
開始ページ 447
終了ページ 455
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 36123160
JaLCDOI 10.18926/AMO/63903
フルテキストURL 76_4_439.pdf
著者 Miyaji, Chikara| Takao, Soshi| Noguchi, Masayuki| Okazaki, Tsubasa| Sato, Shunsuke| Yorifuji, Takashi|
抄録 This study examined the relationship between cognitive/structural social capital and post-traumatic stress disorder (PTSD) among victims of heavy rain and flood. Participants were individuals aged≥18 years affected by the July 2018 heavy rainfall in the cities of Kurashiki and Soja, Japan, and living in temporary housing. We distributed five copies of a questionnaire to 1,991 households and received responses from 1,927 individuals (907 men, 1,008 women, 12 respondents of unspecified sex) in 1,029 households (51.7%). We estimated odds ratios (ORs) and 95% confidence intervals (CIs) for associations between high (vs. low) social capital and PTSD or other outcomes. After covariate adjustment, the odds of having PTSD were lower in participants with high cognitive social capital than those with low cognitive social capital (OR=0.346, 95%CI: 0.263-0.456). Elderly women with higher structural social capital tended to have lower PTSD odds than those with lower structural social capital (OR=0.671, 95%CI: 0.431-1.046). The opposite pattern was observed for elderly men (OR=1.315, 95%CI: 0.792-2.183). Cognitive social capital is a protective factor that may reduce PTSD or promote a favorable PTSD prognosis after heavy rainfall and flood events. The associations between structural social capital and PTSD differ by age and sex.
キーワード social capital post-traumatic stress disorder disaster flooding
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-08
76巻
4号
出版者 Okayama University Medical School
開始ページ 439
終了ページ 446
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 36123159
Web of Science KeyUT 000882167300010
JaLCDOI 10.18926/AMO/63901
フルテキストURL 76_4_423.pdf
著者 Takahashi, Satoshi| Kushibe, Takuya| Akezaki, Yoshiteru| Horiike, Norio|
抄録 We compared the effects of an exercise intervention with that of exercise combined with nutrition therapy in patients with possible malnutrition and sarcopenia admitted to a recovery rehabilitation ward, and we examined the differences in the patients’ physical function and activities of daily living (ADLs). There were 16 patients in the Exercise group with exercise therapy and ADL exercises, and 14 patients in the Combined intervention group with exercise therapy, ADL exercises, and nutrition therapy. The survey items were body weight, body mass index, grip strength, lower-leg circumference, gait speed, and ADLs, each of which was measured at the baseline and at 2 weeks, 4 weeks, and at discharge. Significant improvements in grip strength were observed in the Combined intervention group as follows: at 4 weeks>at 2 weeks (p<0.05), and at discharge>baseline and 2 weeks (p<0.05). There were no significant changes in the Exercise group, and an interaction was recognized in both groups. Comprehensive rehabilitation including nutrition therapy is necessary for patients with possible malnutrition and/or sarcopenia, as our results indicate that nutrition therapy in addition to exercise therapy has the effect of promoting improvements of physical function in such patients.
キーワード sarcopenia rehabilitation exercise therapy nutrition therapy grip strength
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-08
76巻
4号
出版者 Okayama University Medical School
開始ページ 423
終了ページ 428
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 36123157
Web of Science KeyUT 000882167300008
JaLCDOI 10.18926/AMO/63894
フルテキストURL 76_4_399.pdf
著者 Kajiwara, Yukiko| Iwamoto, Takayuki| Zhu, Yidan| Kochi, Mariko| Shien, Tadahiko| Taira, Naruto| Doihara, Hiroyoshi| Toyooka, Shinichi|
抄録 According to a recent report, a low Ki67 level after short-term preoperative hormone therapy (post-Ki67) might suggest a more favorable prognosis compared with a high post-Ki67 level in patients with hormone receptorpositive/human epidermal growth factor 2-negative (HR+/HER2−) breast cancer with high levels of Ki67. This study aimed to evaluate the pre-treatment genetic differences between these two patient groups. Forty-five luminal B-like patients were stratified into two groups, namely, a group with high (H→H) and one with low (H→L) Ki67 levels after short-term preoperative aromatase inhibitor (AI) treatment. We compared pre-treatmentgene expression profiles between the two groups. In gene level analysis, there was no significant difference between the two groups by the class comparison test. In pathway analysis, five metabolism-related gene sets were significantly upregulated in the H→L group (p≤0.05). In the search for novel targets, five genes (PARP, BRCA2, FLT4, CDK6, and PDCD1LG2) showed significantly higher expression in the H→H group (p≤0.05). Several metabolism-related pathways were associated with sensitivity to AI. In the future, it will be necessary to seek out new therapeutic strategies for the poor prognostic group with high post-Ki67.
キーワード breast cancer short-term hormone therapy gene expression profiling Ki-67 targeted therapy
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-08
76巻
4号
出版者 Okayama University Medical School
開始ページ 399
終了ページ 408
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 36123154
Web of Science KeyUT 000882167300005
JaLCDOI 10.18926/AMO/63893
フルテキストURL 76_4_391.pdf
著者 Habu, Hiroshi| Mitsuhashi, Toshiharu| Tokinobu, Akiko| Yorifuji, Takashi| Takao, Soshi|
抄録 Tanden breathing, an ancient health technique, involves expiratory abdominal pressure breathing is practiced in Japan. In this study we examined the ability of Tanden breathing to relieve constipation. The study was designed as a stratified-block randomized controlled trial enrolling 20 participants. Nineteen were female and one was male, none were elderly. During the 6-week intervention period, the participants performed video-guided Tanden breathing about 10 min once day. We evaluated constipation using the Constipation Assessment Scale (CAS). There were significant differences in the mean CAS score between time points (baseline, 3 weeks after baseline, 6 weeks after baseline), groups (intervention and control), and their interaction (time×group) using repeated-measures analysis of variance. The control group showed no change in the mean CAS score; the mean CAS scores of the intervention group changed from 7.2 at baseline to 3.9 at 3 weeks and 3.1 at 6 weeks after baseline. A regression analysis of the difference in the mean CAS between baseline and 6 weeks later showed that the CAS of the intervention group was 4.3 points lower than that of the control group (95% confidence interval, 2.5-6.1). The results suggested that Tanden breathing is effective in relieving constipation among young women.
キーワード Tanden breathing Dantian breathing exercises constipation mind−body therapy
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-08
76巻
4号
出版者 Okayama University Medical School
開始ページ 391
終了ページ 398
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 36123153
Web of Science KeyUT 000882167300001
JaLCDOI 10.18926/AMO/63889
フルテキストURL 76_4_373.pdf
著者 Imafuku, Fuminori| Miyazaki, Ikuko| Sun, Jin| Kamimai, Sunao| Shimizu, Takashi| Toyota, Toshiaki| Okamoto, Yusei| Isooka, Nami| Kikuoka, Ryo| Kitamura, Yoshihisa| Asanuma, Masato|
抄録 Parkinson’s disease (PD) is a progressive neurodegenerative disease of both the central and peripheral / enteric nervous systems. Oxidative stress and neuroinflammation are associated with the pathogenesis of PD, suggesting that anti-oxidative and anti-inflammatory compounds could be neuroprotective agents for PD. Eucommia ulmoides (EU) is a traditional herbal medicine which exerts neuroprotective effects by anti-inflammatory and anti-oxidative properties. Our previous study showed that treatment with chlorogenic acid, a component of EU, protected against neurodegeneration in the central and enteric nervous systems in a PD model. In this study, we examined the effects of EU extract (EUE) administration on dopaminergic neurodegeneration, glial response and α-synuclein expression in the substantia nigra pars compacta (SNpc), and intestinal enteric neurodegeneration in low-dose rotenone-induced PD model mice. Daily oral administration of EUE ameliorated dopaminergic neurodegeneration and α-synuclein accumulation in the SNpc. EUE treatment inhibited rotenone- induced decreases in the number of total astrocytes and in those expressing the antioxidant molecule metallothionein. EUE also prevented rotenone-induced microglial activation. Furthermore, EUE treatment exerted protective effects against intestinal neuronal loss in the PD model. These results suggest that EU exerts neuroprotective effects in the central and enteric nervous systems of rotenone-induced parkinsonism mice, in part by glial modification.
キーワード Eucommia ulmoides dopamine neuron enteric neuron glia Parkinson’s disease
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-08
76巻
4号
出版者 Okayama University Medical School
開始ページ 373
終了ページ 383
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 36123151
Web of Science KeyUT 000882167300003
JaLCDOI 10.18926/AMO/63887
フルテキストURL 76_4_359.pdf
著者 Hiramatsu-Asano, Sumie| Wada, Jun|
抄録 Systemic lupus erythematosus (SLE) is a potentially fatal systemic autoimmune disease, and its etiology involves both genetic and environmental factors such as sex hormone imbalance, genetic predisposition, epigenetic regulation, and immunological factors. Dysregulation of microRNA (miRNA) is suggested to be one of the epigenetic factors in SLE. miRNA is a 22-nucleotide single-stranded noncoding RNA that contributes to post-transcriptional modulation of gene expression. miRNA targeting therapy has been suggested to be useful for the treatment of cancers and other diseases. Gene knockout and miRNA targeting therapy have been demonstrated to improve SLE disease activity in mice. However, these approaches have not yet reached the level of clinical application. miRNA targeting therapy is limited by the fact that each miRNA has multiple targets. In addition, the expression of certain miRNAs may differ among cell tissues within a single SLE patient. This limitation can be overcome by targeted delivery and chemical modifications. In the future, further research into miRNA chemical modifications and delivery systems will help us develop novel therapeutic agents for SLE.
キーワード systemic lupus erythematosus miRNA miRNA targeting therapy
Amo Type Review
出版物タイトル Acta Medica Okayama
発行日 2022-08
76巻
4号
出版者 Okayama University Medical School
開始ページ 359
終了ページ 371
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 36123150
Web of Science KeyUT 000882167300002
JaLCDOI 10.18926/AMO/63744
フルテキストURL 76_3_333.pdf
著者 Akagawa, Manabu| Miyakoshi, Naohisa| Tsuchie, Hiroyuki| Kasukawa, Yuji| Kawaragi, Takashi| Nagahata, Itsuki| Suzuki, Masazumi| Yoshikawa, Takayuki| Abe, Toshiki| Shimada, Yoichi|
抄録 We report a case of atypical femoral fracture achieving early fracture union with combination therapy comprising contralateral nail and immediate teriparatide injection. Fracture union of atypical fractures is often delayed due to bowing deformity and bone metabolic disorders. Combination treatment that takes both problems into consideration represents a useful treatment option for atypical femoral fracture.
キーワード atypical femoral fracture bowing deformity intramedullary nail teriparatide cephalomedullary screw
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2022-06
76巻
3号
出版者 Okayama University Medical School
開始ページ 333
終了ページ 338
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 35790365
Web of Science KeyUT 000823568300013
JaLCDOI 10.18926/AMO/63719
フルテキストURL 76_3_255.pdf
著者 Nakatsuka, Kosuke| Matsuoka, Yoshikazu| Kurita, Masako| Wang, Ruilin| Tsuboi, Chika| Sue, Nobutaka| Kaku, Ryuji| Morimatsu, Hiroshi|
抄録 Mirror image pain (MIP) is a type of extraterritorial pain that results in contralateral pain or allodynia. Glutamate transporter-1 (GLT-1) is expressed in astrocytes and plays a role in maintaining low glutamate levels in the synaptic cleft. Previous studies have shown that GLT-1 dysfunction induces neuropathic pain. Our previous study revealed bilateral GLT-1 downregulation in the spinal cord of a spared nerve injury (SNI) rat. We hypothesized that spinal GLT-1 is involved in the mechanism of MIP. We also previously demonstrated noradrenergic GLT-1 regulation. Therefore, this study aimed to investigate the effect of an α1 adrenergic antagonist on the development of MIP. Rats were subjected to SNI. Changes in pain behavior and GLT-1 protein levels in the SNI rat spinal cords were then examined by intrathecal administration of the α1 adrenergic antagonist phentolamine, followed by von Frey test and western blotting. SNI resulted in the development of MIP and bilateral downregulation of GLT-1 protein in the rat spinal cord. Intrathecal phentolamine increased contralateral GLT-1 protein levels and partially ameliorated the 50% paw withdrawal threshold in the contralateral hind paw. Spinal GLT-1 upregulation by intrathecal phentolamine ameliorates MIP. GLT-1 plays a role in the development of MIPs.
キーワード alpha adrenergic receptor glutamate transporter-1 mirror image pain neuropathic pain spared nerve injury
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-06
76巻
3号
出版者 Okayama University Medical School
開始ページ 255
終了ページ 263
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 35790355
Web of Science KeyUT 000823568300004
JaLCDOI 10.18926/AMO/63717
フルテキストURL 76_3_235.pdf
著者 Tenta, Masafumi| Eguchi, Jun| Wada, Jun|
抄録 The combination of sarcopenia and obesity (sarcopenic obesity) is associated with the development of metabolic syndrome and cardiovascular events. The molecular pathways that develop sarcopenic obesity have studied intensively. Transmembrane protein 97 (TMEM97) is 176 amino acids conserved integral membrane protein with four transmembrane domains that is expressed in several types of cancer. Its physiological significance in adipose tissue and skeletal muscle has been unclear. We studied TMEM97-transgenic mice and mice lacking TMEM97, and our findings indicate that TMEM97 expression is regulated in adipose tissue and skeletal muscle from obesity. TMEM97 represses adipogenesis and promotes myogenesis in vitro. Fat-specific TMEM97 transgenic mice showed systemic insulin resistance. Mice overexpressing TMEM97 in skeletal muscle exhibited systemic insulin resistance. Mice lacking TMEM97 were protected against diet-induced obesity and insulin resistance. These phenotypes are associated with the effects of TMEM97 on inflammation genes in adipose tissue and skeletal muscle. Our findings indicates that there is a link between TMEM97 and chronic inflammation in obesity.
キーワード adipose tissue skeletal muscle obesity
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2022-06
76巻
3号
出版者 Okayama University Medical School
開始ページ 235
終了ページ 245
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 35790353
Web of Science KeyUT 000823568300002
フルテキストURL fulltext20220511-2.pdf
著者 Okada, Kazuaki| Sato, Akira| Hiramoto, Akiko| Isogawa, Rena| Kurosaki, Yuji| Higaki, Kazutaka| Miyoshi, Shin-Ichi| Chang, Kyung-Soo| Kim, Hye-Sook|
発行日 2019-7-5
出版物タイトル Tropical Medicine and Health
47巻
1号
出版者 Springer Science and Business Media LLC
開始ページ 40
ISSN 1349-4147
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).
論文のバージョン publisher
PubMed ID 31312098
DOI 10.1186/s41182-019-0167-4
Web of Science KeyUT 000475630800001
関連URL isVersionOf https://doi.org/10.1186/s41182-019-0167-4