result 1043 件
| JaLCDOI | 10.18926/AMO/54416 |
|---|---|
| FullText URL | 70_3_175.pdf |
| Author | Setiawan, Heri| Nagaoka, Kenjiro| Kubo, Masayuki| Fujikura, Yoshihisa| Ogino, Keiki| |
| Abstract | Oxidative stress is widely known to play a role in asthma. However, the contribution of xanthine oxidoreductase (XOR) as a source of the superoxide anion radical (O2－) in oxidative stress associated with asthma has not yet been examined in detail. Here we investigated pathophysiological changes in XOR in an experimental model of asthma induced by the house dust mite Dermatophagoides farinae (Df). In the lungs of Df-treated mice, the production of O2－ from XOR increased and the nitrite concentrations decreased, whereas the protein expression of XOR remained unchanged. Moreover, the protein expression levels of XOR and the hydrogen peroxide (H2O2) concentrations in bronchoalveolar lavage fluid (BALF) were higher in the Df-treated mice than in saline-treated mice. Immunohistochemically, although XOR was highly localized in the bronchial epithelial cells of the saline-treated mice, immunostaining for XOR was absent in the bronchial epithelium of Df-treated mice. These results suggest that oxidative stress is up-regulated by increases in the conversion of the dehydrogenase form (xanthine dehydrogenase; XDH) of XOR to the oxidase form (xanthine oxidase; XOD). |
| Keywords | xanthine oxidase oxidative stress asthma |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-06 |
| Volume | volume70 |
| Issue | issue3 |
| Publisher | Okayama University Medical School |
| Start Page | 175 |
| End Page | 182 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27339206 |
| Web of Science KeyUT | 000379406100004 |
| JaLCDOI | 10.18926/AMO/54186 |
|---|---|
| FullText URL | 70_2_75.pdf |
| Author | Sejima, Hiroe| Satoh, Shinya| Dansako, Hiromichi| Honda, Masao| Kaneko, Shuichi| Ikeda, Masanori| Kato, Nobuyuki| |
| Abstract | The mechanisms of hepatitis C virus (HCV)-associated hepatocarcinogenesis and disease progression are unclear. We previously observed that the expression level of carboxypeptidase B2 (CPB2) gene was remarkably suppressed by persistent HCV RNA replication in human hepatoma cell line Li23-derived cells. The results of the present study demonstrated that the CPB2 expression in patients with chronic hepatitis C was inversely correlated with several risk factors of hepatic fibrosis or steatosis, although ectopic CPB2 expression did not suppress the expression of fibrogenic or lipogenic genes. The suppressed CPB2 expression was restored by treatment with 5-azacytidine. To clarify the mechanism underlying this phenomenon, we analyzed the CPB2 promoter, and the results revealed that (1) hepatocyte nuclear factor 1 (HNF1), especially HNF1α, was essential for the CPB2 promoter, and (2) CPB2 promoter was not methylated by persistent HCV RNA replication. The expression levels of HNF1α and HNF1β were also not changed by persistent HCV RNA replication. These results suggest the existence of 5-azacytidine-inducible or -reducible unknown factor(s) that can control the CPB2 expression. To evaluate this idea we performed a microarray analysis, and several gene candidates corresponding to the suggested factor(s) were identified. |
| Keywords | persistent hepatitis C virus replication carboxypeptidase B2 suppression mechanism of CPB2 expression DNA methylation hepatocyte nuclear factor 1 |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-04 |
| Volume | volume70 |
| Issue | issue2 |
| Publisher | Okayama University Medical School |
| Start Page | 75 |
| End Page | 88 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27094832 |
| Web of Science KeyUT | 000377626300002 |
| Title Alternative | Current state of and views regarding clinical approarches to Helicobacter pylori infection |
|---|---|
| FullText URL | 128_13.pdf |
| Author | Okada, Hiroyuki| |
| Keywords | Helicobacter pylori 除菌療法 胃癌 胃炎 MALT リンパ腫 |
| Publication Title | 岡山医学会雑誌 |
| Published Date | 2016-04-01 |
| Volume | volume128 |
| Issue | issue1 |
| Start Page | 13 |
| End Page | 19 |
| ISSN | 0030-1558 |
| Related Url | isVersionOf https://doi.org/10.4044/joma.128.13 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2016 岡山医学会 |
| File Version | publisher |
| DOI | 10.4044/joma.128.13 |
| NAID | 130005149601 |
| JaLCDOI | 10.18926/AMO/54000 |
|---|---|
| FullText URL | 70_1_25.pdf |
| Author | Otsuki, Hideo| Yoshioka, Takashi| Shimizu, Toshihiro| Nakanishi, Yusuke| Fujio, Kei| Murao, Wataru| Uehara, Shinya| Kikuchi, Hirosato| Fujio, Koji| |
| Abstract | The effects of stone composition on transurethral lithotripsy (TUL) have not been sufficiently elucidated. The purpose of this study was to identify how calcium phosphate stone composition impacts TUL. Two hundred eighty-nine cases of semi-rigid and/or flexible TUL for upper urinary tract calculi were reviewed retrospectively. Inclusion criteria were a preoperative assessment by noncontrast computed tomography (NCCT) and a stone composition analysis. Small stones and those without calcium composition were excluded. Stone core radiodensity (SCR) was measured by taking the average of the upper 3 of 5 points in the proximity of the center of the stone on NCCT. Fifty-three patients with calcium phosphate composition (CaP) and 118 patients with calcium oxalate and without phosphate composition were eligible for analysis. SCR was significantly higher in the CaP group (p<0.01). The CaP patient group needed a significantly longer operation time (p=0.014) and more laser energy (p=0.085), and tended to have a lower rate of complete lithotripsy (p=0.096) and higher incidence of postoperative pyelonephritis (p=0.181). Stones containing calcium phosphate are harder, demand more laser energy, and require a longer operating time. NCCT evaluation can estimate stone composition preoperatively, and may be a useful tool for predicting operative outcomes. |
| Keywords | ureteroscopic lithotripsy stone composition calcium phosphate radiodensity complication |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-02 |
| Volume | volume70 |
| Issue | issue1 |
| Publisher | Okayama University Medical School |
| Start Page | 25 |
| End Page | 29 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 26899606 |
| Web of Science KeyUT | 000371288700003 |
| Author | Hara, Emilio Satoshi| Ono, Mitsuaki| Eguchi, Takanori| Kubota, Satoshi| Hai, Thanh Pham| Sonoyama, Wataru| Tajima, Shoji| Takigawa, Masaharu| Stuart K., Calderwood| Kuboki, Takuo| |
|---|---|
| Published Date | 2013-12-27 |
| Publication Title | PLOS ONE |
| Volume | volume8 |
| Issue | issue12 |
| Content Type | Journal Article |
| Author | Kato, Nobuyuki| Sejima, Hiroe| Ueda, Youki| Mori, Kyoko| Satoh, Shinya| Dansako, Hiromichi| Ikeda, Masanori| |
|---|---|
| Published Date | 2014-03-13 |
| Publication Title | PLOS ONE |
| Volume | volume9 |
| Issue | issue3 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/AMO/53907 |
|---|---|
| FullText URL | 69_6_333.pdf |
| Author | Ito, Maiko| Shien, Tadahiko| Kaji, Mitsumasa| Mizoo, Taeko| Iwamoto, Takayuki| Nogami, Tomohiro| Motoki, Takayuki| Taira, Naruto| Doihara, Hiroyoshi| Miyoshi, Shinichiro| |
| Abstract | We evaluated the usefulness of preoperative 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) examinations to predict the pathological features in primary breast cancer. In particular, we evaluated the correlation between the maximum standardized uptake values (SUVmax) obtained by 18F-FDG PET/CT and the Ki67 expression in estrogen receptor (ER)-positive invasive ductal carcinoma (IDC). Primary IDC patients operated between March 2009 and July 2013 at Okayama University Hospital were enrolled. We evaluated the correlations between the SUVmax and age, postoperative pT, histological grade, lymph vascular invasion, status of hormone receptor, human epidermal growth factor receptor 2 (HER2), Ki67 expression and node status. The Ki67 expression was classified as high (>14%) versus low (<14%). We enrolled 138 patients with IDC. Their median SUVmax was 3.85 (range:0-52.57). In a univariate analysis, the SUVmax was significantly related to age, pT, histological grade, lymphovascular invasion, hormone receptor status, HER2 status, node status and Ki67. In the 113 patients with ER-positive IDC, there was a significant correlation between Ki67 and SUVmax (p=0.0030). The preoperative 18F-FDG PET/CT results of IDC patients had significant relationships with pathological status parameters. The determination of the preoperative SUVmax might help classify Luminal A and Luminal B patients among luminal-type breast cancer patients. |
| Keywords | breast cancer invasive ductal carcinoma 18F-fluorodeoxyglucose positron emission tomography/computed tomography maximum standardized uptake values clinicopathological features |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2015-12 |
| Volume | volume69 |
| Issue | issue6 |
| Publisher | Okayama University Medical School |
| Start Page | 333 |
| End Page | 338 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2015 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 26690243 |
| Web of Science KeyUT | 000368434500002 |
| Author | Okui, Akemi| Soga, Yoshihiko| Kokeguchi, Susumu| Nose, Motoko| Yamanaka, Reiko| Kusano, Nobuchika| Morita, Manabu| |
|---|---|
| Published Date | 2015-07-15 |
| Publication Title | Internal Medicine |
| Volume | volume54 |
| Issue | issue14 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/AMO/53671 |
|---|---|
| FullText URL | 69_5_261.pdf |
| Author | Nojima, Daisuke| Fujimoto, Nobukazu| Kato, Katsuya| Fuchimoto, Yasuko| Kiura, Katsuyuki| Kishimoto, Takumi| Tanimoto, Mitsune| |
| Abstract | We investigated the clinical features of asbestos-induced diffuse pleural thickening (DPT) with severe respiratory compromise. We conducted a retrospective study of consecutive subjects with asbestos-induced DPT. Medical data such as initial symptoms, radiological findings, respiratory function test results, and clinical course were collected and analyzed. There were 24 patients between 2003 and 2012. All were men, and the median age at the development of DPT was 74 years. The top occupational category associated with asbestos exposure was dockyard workers. The median duration of asbestos exposure was 35.0 years, and the median latency from first exposure to the onset of DPT was 49.0 years. There were no significant differences in respiratory function test results between the higher and lower Brinkman index groups or between unilateral and bilateral DPT. Thirteen patients had a history of benign asbestos pleural effusion (BAPE), and the median duration from pleural fluid accumulation to DPT with severe respiratory compromise was 28.4 months. DPT with severe respiratory compromise can develop after a long latency following occupational asbestos exposure and a history of BAPE. |
| Keywords | asbestos pleural thickening MRC dyspnea scale respiratory function test costophrenic angle |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2015-10 |
| Volume | volume69 |
| Issue | issue5 |
| Publisher | Okayama University Medical School |
| Start Page | 261 |
| End Page | 266 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2015 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 26490022 |
| Web of Science KeyUT | 000365519600001 |
| Author | Onishi, Manabu| Kurozumi, Kazuhiko| Ichikawa, Tomotsugu| Michiue, Hiroyuki| Fujii, Kentaro| Ishida, Joji| Shimazu, Yosuke| Chiocca, E Antonio| Kaur, Balveen| Date, Isao| |
|---|---|
| Published Date | 2013-04-15 |
| Publication Title | SpringerPlus |
| Volume | volume2 |
| Content Type | Journal Article |
| Author | Kyotaro, Ohno| Yasuharu, Sato| Koh-ichi, Ohshima| Katsuyoshi, Takata| Tomoko, Miyata-Takata| Mai, Takeuchi| Yuka, Gion| Tomoyasu, Tachibana| Yorihisa, Orita| Toshihiro, Ito| Steven, H. Swerdlow| Tadashi, Yoshino| |
|---|---|
| Published Date | 2015 |
| Publication Title | Scientific Reports |
| Volume | volume5 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/AMO/53558 |
|---|---|
| FullText URL | 69_4_219.pdf |
| Author | Toshimori, Junichi| Nouso, Kazuhiro| Nakamura, Shinichiro| Wada, Nozomu| Morimoto, Yuki| Takeuchi, Yasuto| Yasunaka, Tetsuya| Kuwaki, Kenji| Ohnishi, Hideki| Ikeda, Fusao| Shiraha, Hidenori| Takaki, Akinobu| Yamamoto, Kazuhide| |
| Abstract | We conducted a retrospective cohort study to investigate the predisposing factors for local recurrence and complications after percutaneous radiofrequency ablation (RFA) of hepatocellular carcinoma (HCC). HCC patients (n＝397) consecutively treated with RFA (256 males, 141 females, median age 69 years) were enrolled. In these patients, 1,455 nodules (median size 17mm) were ablated. Predisposing factors for overall recurrence and local recurrence in the context of tumor location and complications were examined. Local recurrence was observed for 113 of the 1,455 nodules. The 1-, 3- and 5-year local recurrence rates were 2.2ｵ, 7.4ｵ and 9.5ｵ, respectively. A multivariate Cox proportional hazard analysis revealed that large tumor size (＞2cm), tumor location (adjacent to the major portal branch or hepatic vein), and small ablated margin (＜3mm) were independent predisposing factors for local recurrence after RFA (HR＝1.70-2.81). Tumor location (adjacent to the major portal branch, hepatic vein, or diaphragm) was also revealed as a risk factor for liver damage due to RFA. HCC adjacent to the major portal vein or hepatic vein was associated with a higher risk for local recurrence and for complications;therefore, special precautions are necessary when applying RFA to HCC near vessels even when the tumors are located at an easy-to-puncture site. |
| Keywords | hepatocellular carcinoma radiofrequency ablation ablated margin tumor location |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2015-08 |
| Volume | volume69 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 219 |
| End Page | 226 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2015 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 26289913 |
| Web of Science KeyUT | 000365519100005 |
| JaLCDOI | 10.18926/AMO/53557 |
|---|---|
| FullText URL | 69_4_213.pdf |
| Author | Yumoto, Tetsuya| Sato, Keiji| Ugawa, Toyomu| Ichiba, Shingo| Ujike, Yoshihito| |
| Abstract | Hyponatremia, a common electrolyte disorder associated with traumatic brain injuries (TBIs), has high mortality and morbidity rates. The aim of this study was to identify the risk factors for hyponatremia associated with TBI. We retrospectively analyzed the cases of TBI patients who were admitted to the emergency intensive care unit at Okayama University Hospital between October 2011 and September 2014. A total of 82 TBI patients were enrolled. The incidences of hyponatremia (serum sodium level of＜135mEq/L) and severe hyponatremia (serum sodium level of＜130mEq/L) within the first 14 days after admission were 51ｵ (n＝42) and 20ｵ (n＝16), respectively. After admission, hyponatremia took a median period of 7 days to develop and lasted for a median of 3 days. Multivariate analysis demonstrated that higher fluid intake from days 1 to 3 and the presence of cranial fractures were risk factors for hyponatremia. The 58 patients with hyponatremia experienced fewer ventilator-free days, longer intensive care unit stays, and less favorable outcomes compared to the 24 patients without hyponatremia;however, these differences were not significant. Further studies are needed to determine the optimal management strategy for TBI-associated hyponatremia in the intensive care unit setting. |
| Keywords | traumatic brain injury hyponatremia cranial fracture fluid intake |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2015-08 |
| Volume | volume69 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 213 |
| End Page | 218 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2015 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 26289912 |
| Web of Science KeyUT | 000365519100004 |
| Title Alternative | Role of COLXV/XVⅢ gene, Multiplexin, as a basement membrane toolkit |
|---|---|
| FullText URL | 127_103.pdf |
| Author | Oohashi, Toshitaka| |
| Keywords | 基底膜 ツールキット XV/XVⅢ型コラーゲン プロテオグリカン ミトコンドリア |
| Publication Title | 岡山医学会雑誌 |
| Published Date | 2015-08-03 |
| Volume | volume127 |
| Issue | issue2 |
| Start Page | 103 |
| End Page | 109 |
| ISSN | 0030-1558 |
| Related Url | isVersionOf https://doi.org/10.4044/joma.127.103 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2015 岡山医学会 |
| File Version | publisher |
| DOI | 10.4044/joma.127.103 |
| NAID | 130005096251 |
| JaLCDOI | 10.18926/AMO/53520 |
|---|---|
| FullText URL | 69_3_137.pdf |
| Author | Seki, Hiroyuki| Ikeda, Fusao| Nanba, Shintaro| Moritou, Yuki| Takeuchi, Yasuto| Yasunaka, Tetsuya| Onishi, Hideki| Miyake, Yasuhiro| Takaki, Akinobu| Nouso, Kazuhiro| Iwasaki, Yoshiaki| Nakamura, Minoru| Yamamoto, Kazuhide| |
| Abstract | A predictive marker of the rapid progression to hepatic failure is desired for patients with asymptomatic primary biliary cirrhosis (aPBC). We performed a systematic cohort analysis of 101 patients diagnosed as having aPBC and the rapid progression to liver failure in some, by focusing on cholestasis. Cholestasis was assessed by aberrant keratin7 (K-7) expressions in the patientsʼ hepatocytes. Intralobular expressions of K-7 were found in 9 of the 101 patients. The grades of K-7 expression were significantly associated with the levels of alanine aminotransferase, alkaline phosphatase, and total bilirubin at the time of diagnosis, but not with bile duct loss or cholestasis. Stepwise logistic regression analysis revealed that high grades of K-7 expression correlated positively with high levels of total bilirubin. During the follow-up period, 8 patients developed jaundice, and the mean period until the development of jaundice was 5.2 years. The proportional hazards models for the risk of developing jaundice identified a high grade of aberrant K-7 expression in hepatocytes as the only significant risk factor. Aberrant K-7 expression in hepatocytes can be used as an additional marker to predict rapid progression to liver failure in patients with aPBC at the time of diagnosis. |
| Keywords | primary biliary cirrhosis keratin 7 hepatic failure |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2015-06 |
| Volume | volume69 |
| Issue | issue3 |
| Publisher | Okayama University Medical School |
| Start Page | 137 |
| End Page | 144 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2015 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 26101189 |
| Web of Science KeyUT | 000356903000002 |
| Author | Miyaji, Takaaki| Kuromori, Takashi| Takeuchi, Yu| Yamaji, Naoki| Yokosho, Kengo| Shimazawa, Atsushi| Sugimoto, Eriko| Omote, Hiroshi| Ma, Jian Feng| Shinozaki, Kazuo| Moriyama, Yoshinori| |
|---|---|
| Published Date | 2015-01-05 |
| Publication Title | Nature Communications |
| Volume | volume6 |
| Content Type | Journal Article |
| Author | Shoji, Bon| Ikeda, Fusao| Fujioka, Shin-ichi| Kobashi, Haruhiko| Yasunaka, Tetsuya| Miyake, Yasuhiro| Shiraha, Hidenori| Takaki, Akinobu| Nouso, Kazuhiro| Iwasaki, Yoshiaki| Yamamoto, Kazuhide| |
|---|---|
| Published Date | 2010-11 |
| Publication Title | Journal of Gastroenterology |
| Volume | volume45 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Ishikawa, Hisashi| Takaki, Akinobu| Tsuzaki, Ryuichiro| Yasunaka, Tetsuya| Koike, Kazuko| Shimomura, Yasuyuki| Seki, Hiroyuki| Matsushita, Hiroshi| Miyake, Yasuhiro| Ikeda, Fusao| Shiraha, Hidenori| Nouso, Kazuhiro| Yamamoto, Kazuhide| |
|---|---|
| Published Date | 2014-07-01 |
| Publication Title | PLoS ONE |
| Volume | volume9 |
| Issue | issue7 |
| Content Type | Journal Article |
| Author | Kobayashi, Junko| Yoshida, Masashi| Tarui, Suguru| Hirata, Masataka| Nagai, Yusuke| Kasahara, Shingo| Naruse, Keiji| Ito, Hiroshi| Sano, Shunji| Oh, Hidemasa| |
|---|---|
| Published Date | 2014-07-22 |
| Publication Title | PLoS ONE |
| Volume | volume9 |
| Issue | issue7 |
| Content Type | Journal Article |
| Author | Mizuki, Yutaka| Takaki, Manabu| Okahisa, Yuko| Sakamoto, Shinji| Kodama, Masafumi| Ujike, Hiroshi| Uchitomi, Yosuke| |
|---|---|
| Published Date | 2014-11 |
| Publication Title | Human Psychopharmacology: Clinical and Experimental |
| Volume | volume29 |
| Issue | issue6 |
| Content Type | Journal Article |
