検索結果 3898 件
| JaLCDOI | 10.18926/AMO/48668 |
|---|---|
| フルテキストURL | 66_4_291.pdf |
| 著者 | Yokoyama, Teruhiko| Yamamoto, Yumiko| Suzuki, Tomonori| Oguma, Keiji| Nagai, Atsushi| |
| 抄録 | Several studies have demonstrated the efficacy of intraprostatic injection of botulinum neurotoxin type A (BoNT/A) against symptomatic benign prostatic hyperplasia (BPH). The most commonly used BoNT/A product, Botox®, forms large complexes and composed of neurotoxin (NTX) as well as non-toxic components. We purified NTX lacking non-toxic components. We investigated the efficacy of this newly purified NTX for men with BPH. Ten male patients (mean age, 70.0 years) with BPH received 100 units (prostate volume [PV] ＜30ml) or 200 units (PV ｧ30ml) of NTX injected into the prostate via a minimally invasive outpatient technique. Evaluation included uroflowmetry, postvoid residual urine volume (PVR), PV, and International Prostate Symptom Score (IPSS) measured at baseline and 1, 3, 6, and 12 months post-treatment. The status of 7 of the 10 patients examined was found to have improved within 1 month of treatment. The mean IPSS decreased from 23.8±7.0 to 16.3±10.3 (p＝0.0093) at 1 month, to 14.9±8.2 (p＝0.0074) at 3 months, and to 16.9±7.3 (p＝0.018) at 12 months. The mean PV decreased from 47.8±21.2 to 39.2±19.5ml (p＝0.0076) at 3 months. The PVR improved at 3 and 6 months post-treatment. Intraprostatic NTX injection induces prostate shrinkage and is effective in men with BPH. |
| キーワード | botulinum neurotoxin type A benign prostatic hyperplasia therapy |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-08 |
| 巻 | 66巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 291 |
| 終了ページ | 297 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22918201 |
| Web of Science KeyUT | 000307918900001 |
| JaLCDOI | 10.18926/AMO/48569 |
|---|---|
| フルテキストURL | 66_3_285.pdf |
| 著者 | Mizobuchi, Satoshi| Matsuoka, Yoshikazu| Obata, Norihiko| Kaku, Ryuji| Itano, Yoshitaro| Tomotsuka, Naoto| Taniguchi, Arata| Nishie, Hiroyuki| Kanzaki, Hirotaka| Ouchida, Mamoru| Morita, Kiyoshi| |
| 抄録 | Perioperative beta-blocker administration has recently been recommended for patients undergoing cardiac or other surgery due to the beneficial cardiovascular effects of these agents. In addition, some studies have reported that perioperatively administered beta-blockers also have analgesic effects. In this study, to investigate the antinociceptive effects and the analgesic profile of landiolol, we examined the effects of intrathecal landiolol administration on nociceptive pain behavior and c-fos mRNA expression (a neural marker of pain) in the spinal cord using a rat formalin model. We found that pain-related behavior was inhibited by intrathecal landiolol administration. Moreover, the increase in c-fos mRNA expression on the formalin-injected side was less pronounced in rats administered landiolol than in saline administered controls. Thus, intrathecal administration of landiolol exhibited antinociceptive effects. Further investigation of the antinociceptive mechanism of landiolol is required. |
| キーワード | beta-blocker landiolol formalin pain behavior c-fos |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 285 |
| 終了ページ | 289 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729110 |
| Web of Science KeyUT | 000305669700013 |
| JaLCDOI | 10.18926/AMO/48568 |
|---|---|
| フルテキストURL | 66_3_279.pdf |
| 著者 | Nishimura, Mamoru| Nouso, Kazuhiro| Kariyama, Kazuya| Wakuta, Akiko| Kishida, Masayuki| Wada, Nozomu| Higashi, Toshihiro| Yamamoto, Kazuhide| |
| 抄録 | The artificial ascites technique is often used during radiofrequency ablation (RFA) for hepatocellular carcinoma (HCC) treatment because it prevents visceral damage and improves visualization by minimizing interference of the lungs and mesentery. This study determined the efficacy and safety of RFA using the artificial ascites technique in HCC patients. We examined 188 HCC patients who were treated by RFA and fulfilled the Milan criteria. Treatment outcomes (complete ablation rate, local recurrence rate, complication rate, liver function including total bilirubin level, alanine aminotransferase level, albumin level, and prothrombin time) were compared among patients divided into 3 groups based on the volume of artificial ascites injected:GroupⅠ (n＝86), no artificial ascites injected;GroupⅡ (n＝35), ＜1,000ml artificial ascites injected;and Group Ⅲ (n＝67), ＞1,000ml artificial ascites injected. No significant difference was observed in complete ablation or local recurrence rates among the 3 groups, or in the extent of liver function damage after RFA. Artificial ascites disappeared within 7 days; additional diuretics were needed only in 5 (all from Group Ⅲ) of 102 patients. No serious complications such as intestinal perforation or intraperitoneal bleeding were observed. Thus, we found that artificial ascites injection during RFA is effective and safe, and can be used to prevent major procedural complications. |
| キーワード | radiofrequency ablation hepatocellular carcinoma artificial ascites |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 279 |
| 終了ページ | 284 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729109 |
| Web of Science KeyUT | 000305669700012 |
| JaLCDOI | 10.18926/AMO/48567 |
|---|---|
| フルテキストURL | 66_3_271.pdf |
| 著者 | Lee, Shin-Wha| Kim, Yong-Man| Kim, Moon-Bo| Kim, Dae-Yeon| Kim, Jong-Hyeok| Nam, Joo-Hyun| Kim, Young-Tak| |
| 抄録 | The choice of chemotherapeutic drugs to treat patients with epithelial ovarian cancer has not depended on individual patient characteristics. We have investigated the correlation between in vitro chemosensitivity, as determined by the histoculture drug response assay (HDRA), and clinical responses in epithelial ovarian cancer. Fresh tissue samples were obtained from 79 patients with epithelial ovarian cancer. The sensitivity of these samples to 11 chemotherapeutic agents was tested using the HDRA method according to established methods, and we analyzed the results retrospectively. HDRA showed that they were more chemosensitive to carboplatin, topotecan and belotecan, with inhibition rates of 49.2%, 44.7%, and 39.7%, respectively, than to cisplatin, the traditional drug of choice in epithelial ovarian cancer. Among the 37 patients with FIGO stage Ⅲ/Ⅳ serous adenocarcinoma who were receiving carboplatin combined with paclitaxel, those with carboplatin-sensitive samples on HDRA had a significantly longer median disease-free interval than patients with carboplatin- resistant samples (23.2 vs. 13.8 months, p＜0.05), but median overall survival did not differ significantly (60.4 vs. 37.3 months, p＝0.621). In conclusion, this study indicates that HDRA could provide useful information for designing individual treatment strategies in patients with epithelial ovarian cancer. |
| キーワード | chemosensitivity carboplatin HDRA (histoculture drug response assay) epithelial ovarian cancer |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 271 |
| 終了ページ | 277 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729108 |
| Web of Science KeyUT | 000305669700011 |
| JaLCDOI | 10.18926/AMO/48566 |
|---|---|
| フルテキストURL | 66_3_263.pdf |
| 著者 | Sasaki, Takanori| Kuroda, Masahiro| Katashima, Kazunori| Ashida, Masakazu| Matsuzaki, Hidenobu| Asaumi, Junichi| Murakami, Jun| Ohno, Seiichiro| Kato, Hirokazu| Kanazawa, Susumu| |
| 抄録 | The roles of cell density, extracellular space, intracellular factors, and apoptosis induced by the molecularly targeted drug rituximab on the apparent diffusion coefficient (ADC) values were investigated using bio-phantoms. In these bio-phantoms, Ramos cells (a human Burkittｾs lymphoma cell line) were encapsulated in gellan gum. The ADC values decreased linearly with the increase in cell density, and declined steeply when the extracellular space became less than 4 μm. The analysis of ADC values after destruction of the cellular membrane by sonication indicated that approximately 65% of the ADC values of normal cells originate from the cell structures made of membranes and that the remaining 35% originate from intracellular components. Microparticles, defined as particles smaller than the normal cells, increased in number after rituximab treatments, migrated to the extracellular space and significantly decreased the ADC values of bio-phantoms during apoptosis. An in vitro study using bio-phantoms was conducted to quantitatively clarify the roles of cellular factors and of extracellular space in determining the ADC values yielded by tumor cells and the mechanism by which apoptosis changes those values. |
| キーワード | apparent diffusion coefficient value cell density extracellular space bio-phantom |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 263 |
| 終了ページ | 270 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729107 |
| Web of Science KeyUT | 000305669700010 |
| JaLCDOI | 10.18926/AMO/48565 |
|---|---|
| フルテキストURL | 66_3_253.pdf |
| 著者 | Zhang, Kai| Yamamoto, Yumiko| Suzuki, Tomonori| Yokota, Kenji| Ma, Shaobo| Nengah Dwi Fatmawati, Ni| Oguma, Keiji| |
| 抄録 | Cultured Clostridium botulinum strains produce progenitor toxins designated as 12S, 16S, and 19S toxins. The 12S toxin consists of a neurotoxin (NTX, 7S) and a non-toxic non-hemagglutinin (NTNH). The 16S and 19S toxins are formed by conjugation of the 12S toxin with hemagglutinin (HA), and the 19S toxin is a dimer of the 16S toxin. Type A cultures produce all 3 of these progenitor toxins, while type E produces only the 12S toxin. The 7S toxin is cleaved into heavy (H) and light (L) chains by a protease(s) in some strains, and the H chain has 2 domains, the N-terminus (Hn) and C-terminus (Hc). It has been reported that type A toxins bind to the intestinal cells or cultured cells via either HA or Hc. In this study, we investigated the binding of type A and E toxins to Caco-2 cells using Western blot analysis. Both the type E 7S and 12S toxins bound to the cells, with the 7S toxin binding more strongly, whereas, in the type A strain, only the 16S/19S toxins showed obvious binding. Pre-incubation of the type E 7S toxin with IgG against recombinant type E Hc significantly inhibited the 7S toxin binding, indicating that Hc might be a main binding domain of the type E toxin. |
| キーワード | Clostridum botulinum neurotoxins Caco-2 binding Hc |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 253 |
| 終了ページ | 261 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729106 |
| Web of Science KeyUT | 000305669700009 |
| 関連URL | http://ousar.lib.okayama-u.ac.jp/metadata/48451 |
| JaLCDOI | 10.18926/AMO/48564 |
|---|---|
| フルテキストURL | 66_3_245.pdf |
| 著者 | Okada, Toshiaki| Takigawa, Nagio| Kishino, Daizo| Katayama, Hideki| Kuyama, Shouichi| Sato, Ken| Mimoto, Junko| Ueoka, Hiroshi| Tanimoto, Mitsune| Kiura, Katsuyuki| |
| 抄録 | Cisplatin is used to treat lung cancer;however, it is also a known carcinogen. Cyclooxygenase-2 (COX-2) inhibitors have been shown to prevent carcinogen-induced experimental tumors. We investigated the effect of a COX-2 inhibitor, celecoxib, on cisplatin-induced lung tumors. One hundred twenty 4-week-old A/J mice were divided into 6 groups:group 1, no treatment;group 2, low-dose celecoxib (150mg/kg);group 3, high-dose celecoxib (1,500mg/kg);group 4, cisplatin alone;group 5, cisplatin plus low-dose celecoxib;and group 6, cisplatin plus high-dose celecoxib. Mice in groups 4-6 were administered cisplatin (1.62mg/kg, i.p.) once a week for 10 weeks between 7 and 16 weeks of age. All mice were sacrificed at week 30. Tumor incidence was 15.8% in group 1, 25% in group 2, 26.3% in group 3, 60% in group 4, 50% in group 5, and 50% in group 6. Tumor multiplicity was 0.2, 0.3, 0.3, 1.3, 1.0, and 0.6 in groups 1-6, respectively. Tumor multiplicity in the cisplatin-treated mice was reduced by celecoxib treatment in a dose-dependent manner (p＜0.05, group 4 vs. group 6). Celecoxib significantly reduced COX-2 expression in cisplatin-induced tumors (p＜0.01, group 4 vs. group 6). |
| キーワード | cisplatin non-small cell lung cancer celecoxib cyclooxygenase-2 chemoprevention |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 245 |
| 終了ページ | 251 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729105 |
| Web of Science KeyUT | 000305669700008 |
| JaLCDOI | 10.18926/AMO/48563 |
|---|---|
| フルテキストURL | 66_3_239.pdf |
| 著者 | Sawa, Kiminari| Mizushima, Takaaki| Matsushita, Koki| Shirahige, Akinori| Ochi, Koji| Koide, Norio| |
| 抄録 | Plain abdominal radiography is a very basic examination and plays an important role in primary care. The objectives of this study were to clarify colon distributions on plain abdominal radiographs. Forty-three healthy volunteers underwent gastric fluoroscopy, and 2 hours later, plain abdominal radiography in the supine position. A region of interest (ROI) was defined uniformly on each X-ray image to divide the image into 600 zones. The area corresponding to the large bowel within the ROI was divided into 4 segments (ascending colon, transverse colon, descending colon, and sigmoid colon＋rectum). The percentage of barium in each segment relative to the total volume of barium used was calculated to evaluate the percent ROI occupancy. The large bowel covered 76.7% of the entire ROI, with the percent duplication being 55%. The duplicated area corresponded to the transverse colon region. When the method proposed by Arhan et al. was used, the percentage of the colon actually present in each segment relative to that determined theoretically was 99.6% for the right colon segment, 92.2% for the left colon segment, and 92.2% for the sigmoid/rectal segment. However, in cases in which the transverse colon descended partially from the fifth lumbar vertebra, the percentage occupied by the sigmoid colon＋rectum decreased to 57.2%. We applied a new large bowel segmentation method especially for patients with ptosis, by devising a line joining the lateral side of the right lesser pelvis and the lower ends of both sacroiliac joints. |
| キーワード | large bowel segmentation plain abdominal radiograph classification method primary care |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 239 |
| 終了ページ | 244 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729104 |
| Web of Science KeyUT | 000305669700007 |
| 関連URL | http://ousar.lib.okayama-u.ac.jp/metadata/48881 |
| JaLCDOI | 10.18926/AMO/48562 |
|---|---|
| フルテキストURL | 66_3_231.pdf |
| 著者 | Takahashi, Kingo| Hayashi, Masamichi| Fujii, Toshihiro| Kawamura, Kenji| Ozaki, Toshifumi| |
| 抄録 | The objective of early rehabilitation after anterior cruciate ligament (ACL) reconstruction is to increase the muscle strength of the lower extremities. Closed kinetic chain (CKC) exercise induces co-contraction of the agonist and antagonist muscles. The purpose of this study was to compare the postoperative muscle strength/mass of subjects who performed our new CKC exercise (new rehabilitation group:group N) from week 4, and subjects who received traditional rehabilitation alone (traditional rehabilitation group:group T). The subjects stood on the device and maintained balance. Then, low-frequency stimulation waves were applied to 2 points each in the anterior and posterior region of the injured thigh 3 times a week for 3 months. Measurement of muscle strength was performed 4 times (before the start, and then once a month). Muscle mass was evaluated in CT images of the extensor and flexor muscles of 10 knees (10 subjects) in each group. The injured legs of group N showed significant improvement after one month compared to group T. The cross-sectional area of the extensor muscles of the injured legs tended to a show a greater increase at 3 months in group N. This rehabilitation method makes it possible to contract fast-twitch muscles, which may be a useful for improving extensor muscle strength after ACL reconstruction. |
| キーワード | anterior cruciate ligament reconstruction closed kinetic chain electrical muscle stimulation standing-shaking-board exercise |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 231 |
| 終了ページ | 237 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729103 |
| Web of Science KeyUT | 000305669700006 |
| JaLCDOI | 10.18926/AMO/48561 |
|---|---|
| フルテキストURL | 66_3_221.pdf |
| 著者 | Takahata, Yoko| Wang, Da-Hong| Anai, Takanobu| Ogino, Keiki| |
| 抄録 | This study aimed to elucidate the relationship of prenatal and/or postnatal factors, including acquired factors, with the calcaneus stiffness index as measured by quantitative ultrasound (QUS-SI) in adolescents. We recruited 1,143 adolescents with a mean age of 14.8±1.8 years (501 boys and 642 girls). The subjectsʼ calcaneus QUS-SI was measured using an ultrasound bone densitometer. We also measured the subjectsʼ height, weight, and grip strength. Data on prenatal and postnatal factors were obtained from maternal and child health handbooks. A self-reporting questionnaire was used to obtain information on subjectsʼ secondary sexual characteristics and lifestyle factors. We found that maternal weight gain during pregnancy was independently associated with calcaneus QUS-SI in girls, and that grip strength was also significantly associated with calcaneus QUS-SI in both sexes. The present findings suggest that excessive restriction of maternal weight gain would have a negative effect on the calcaneus QUS-SI of girls, and that exercise and strength-building activities are likely to result in a higher calcaneus QUS-SI in both sexes of adolescents. |
| キーワード | adolescents calcaneus QUS-SI prenatal and/or postnatal status stiffness index ultrasound bone densitometer |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 221 |
| 終了ページ | 229 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729102 |
| Web of Science KeyUT | 000305669700005 |
| 関連URL | http://ousar.lib.okayama-u.ac.jp/metadata/48455 |
| JaLCDOI | 10.18926/AMO/48560 |
|---|---|
| フルテキストURL | 66_3_213.pdf |
| 著者 | Kataoka, Masaki| Kunisada, Toshiyuki| Tanaka, Masato| Takeda, Ken| Itani, Satoru| Sugimoto, Yoshihisa| Misawa, Haruo| Senda, Masuo| Nakahara, Shinnosuke| Ozaki, Toshifumi| |
| 抄録 | There are a variety of treatment options for patients with spinal metastasis, and predicting prognosis is essential for selecting the proper treatment. The purpose of the present study was to identify the significant prognostic factors for the survival of patients with spinal metastasis. We retrospectively reviewed 143 patients with spinal metastasis. The median age was 61 years. Eleven factors reported previously were analyzed using the Cox proportional hazards model:gender, age, performance status, neurological deficits, pain, type of primary tumor, metastasis to major organs, previous chemotherapy, disease-free interval before spinal metastasis, multiple spinal metastases, and extra-spinal bone metastasis. The average survival of study patients after the first visit to our clinic was 22 months. Multivariate survival analysis demonstrated that type of primary tumor (hazard ratio [HR]＝6.80, p＜0.001), metastasis to major organs (HR＝2.01, p＝0.005), disease-free interval before spinal metastasis (HR＝1.77, p＝0.028), and extra-spinal bone metastasis (HR＝1.75, p＝0.017) were significant prognostic factors. Type of primary tumor was the most powerful prognostic factor. Other prognostic factors may differ among the types of primary tumor and may also be closely associated with primary disease activity. Further analysis of factors predicting prognosis should be conducted with respect to each type of primary tumor to help accurately predict prognosis. |
| キーワード | spine metastasis survival prognostic factor cancer |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 213 |
| 終了ページ | 219 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729101 |
| Web of Science KeyUT | 000305669700004 |
| JaLCDOI | 10.18926/AMO/48559 |
|---|---|
| フルテキストURL | 66_3_203.pdf |
| 著者 | Ohno, Seiichiro| Harimoto, Takashi| Hirosue, Miyuki| Miyai, Masahiro| Hattori, Kengo| Kuroda, Masahiro| Kanazawa, Susumu| Inamura, Keiji| Kato, Hirokazu| |
| 抄録 | Magnetic resonance imaging (MRI) visualization of metallic stent lumens is possible if the stent structure counteracts eddy currents in the lumen induced by the radio frequency magnetic field, B1. To examine the effectiveness of various stent designs in counteracting eddy currents, we anchored eight copper stent models and 2 commercially available nickel-titanium alloy (Nitinol) stents in a gel phantom, perpendicular or parallel to the direction of B1. A mesh stent lumen showed hypointensity irrespective of its alignment relative to B1. A solenoid stent lumen showed hypointensity with the stent axis parallel to B1, but it had the same signal intensity as outside the lumen when perpendicular to B1. A Moebius stent lumen showed no signal reduction, irrespective of alignment relative to B1. Lumens of the commercially available stents showed hypointensity regardless of alignment relative to B1. Computer simulation revealed that the signal intensities of the stents corresponded to magnetic flux densities of B1 in the stents, which are modified by the structure of the stent. While in vivo MRI viewing of a Moebius stent lumen is likely possible regardless of axis alignment, inherent structural weakness may be problematic. As a more practical choice, the solenoid stent is easier to manufacture and generates no hypointensive signal when the axis is parallel to B0. |
| キーワード | MRI visualization of stent lumen solenoid pattern Moebius pattern direction of B1 |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 203 |
| 終了ページ | 211 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729100 |
| Web of Science KeyUT | 000305669700003 |
| 関連URL | http://ousar.lib.okayama-u.ac.jp/metadata/48542 |
| JaLCDOI | 10.18926/AMO/48558 |
|---|---|
| フルテキストURL | 66_3_191.pdf |
| 著者 | Kishimoto, Fumiko| Naito, Tomoko| Hasebe, Satoshi| Ohtsuki, Hiroshi| |
| 抄録 | The utility value was compared among 3 surgical interventions, and the validity of the time trade-off (TTO) method was evaluated by analyzing the correlations of the utility value with the results of the Visual Function Questionnaire-14 (VF-14) and other variables. The subjects were 127 patients aged 40-85 years who were surgically treated between January 2008 and March 2010, including 26 patients with glaucoma, 50 with cataracts, and 51 with comitant strabismus. The scores on VF-14 and utility values determined using TTO were calculated retrospectively. The mean value (SD) of the utility gain was 0.096 (0.105) for glaucoma, 0.101 (0.105) for comitant strabismus, and 0.167 (0.237) for unilateral and 0.245 (0.167) for bilateral cataracts, indicating significant postoperative improvements in the utility value. A significant correlation was observed between the utility value and the postoperative VF-14 scores of the bilateral cataracts, and the postoperative visual acuity of the better eye of the unilateral cataract. The mean value of the quality-adjusted life years was 2.181 for bilateral and 1.424 for unilateral cataracts, 1.132 for strabismus, and 0.870 for glaucoma with an annual discount rate of 3%. The gain of utility value was highest in bilateral cataracts, and lowest in glaucoma, and thus the TTO analysis was considered to be highly valid for cataract surgery. |
| キーワード | surgical intervention VF-14 utility analysis time trade-off quality-adjusted life years |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 191 |
| 終了ページ | 201 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729099 |
| Web of Science KeyUT | 000305669700002 |
| JaLCDOI | 10.18926/AMO/48557 |
|---|---|
| フルテキストURL | 66_3_183.pdf |
| 著者 | Tanabe, Kenji| Takei, Kohji| |
| 抄録 | Charcot-Marie-Tooth disease (CMT) is an inherited neuronal disorder, and is induced by mutations of various genes associated with intracellular membrane traffic and cytoskeleton. A large GTPase, dynamin, which is known as a fission protein for endocytic vesicles, was identified as a gene responsible for dominant-intermediate CMT type 2B (DI-CMT2B). Of these mutants, the PH domain, which is required for interaction with phosphoinositides, was mutated in several families. Interestingly, the expression of a deletion mutant, 551Δ3, did not impair endocytosis, but induced abnormal accumulation of microtubules. Recent evidence has shown that dynamin 2 regulates the dynamic instability of microtubules, and 551Δ3 lacks this function. We propose a model for the regulation of the dynamic instability of microtubules by dynamin 2 and discuss the relationship between dynamin 2 and CMT. |
| キーワード | neuropathy Charcot-Marie-Tooth disease membrane traffic dynamin microtubules |
| Amo Type | Review |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-06 |
| 巻 | 66巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 183 |
| 終了ページ | 190 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22729098 |
| Web of Science KeyUT | 000305669700001 |
| フルテキストURL | K0004591.pdf K004591_honbun.pdf |
|---|---|
| 著者 | 大野 誠一郎| |
| 発行日 | 2012-03-23 |
| 資料タイプ | 学位論文 |
| 学位授与番号 | 甲第4591号 |
| 学位授与年月日 | 2012-03-23 |
| 学位・専攻分野 | 博士（保健学） |
| 授与大学 | 岡山大学 |
| 言語 | 日本語 英語 |
| フルテキストURL | K0004505.pdf K004505_honbun.pdf |
|---|---|
| 著者 | 高畑 陽子| |
| 発行日 | 2012-03-23 |
| 資料タイプ | 学位論文 |
| 学位授与番号 | 甲第4505号 |
| 学位授与年月日 | 2012-03-23 |
| 学位・専攻分野 | 博士（医学） |
| 授与大学 | 岡山大学 |
| 言語 | 日本語 英語 |
| フルテキストURL | K0004501.pdf K004501_honbun.pdf |
|---|---|
| 著者 | 張 凱| |
| 発行日 | 2012-03-23 |
| 資料タイプ | 学位論文 |
| 学位授与番号 | 甲第4501号 |
| 学位授与年月日 | 2012-03-23 |
| 学位・専攻分野 | 博士（医学） |
| 授与大学 | 岡山大学 |
| 言語 | 日本語 英語 |
| JaLCDOI | 10.18926/AMO/48338 |
|---|---|
| フルテキストURL | 61_4_199.pdf |
| 著者 | Saika, Takashi| Arata, Ryoji| Tsushima, Tomoyasu| Nasu, Yasutomo| Suyama, Bunzo| Takeda, Katsuji| Ebara, Shin| Manabe, Daisuke| Kobayashi, Tomoko| Tanimoto, Ryuta| Kumon, Hiromi| |
| 抄録 | To compare the health-related quality of life of elderly patients after radical cystectomy for bladder cancer in urinary diversion groups: ileal conduit, ureterocutaneostomy, or orthotopic urinary reservoir. The 109 participating elderly patients aged 75 or older completed self-reporting questionnaires: the QLQ-C30, and on satisfaction with urinary diversion methods. Fifty-six patients had undergone constructions for ileal conduit diversion, 31 for ureterocutaneostomy, and 22 for orthotopic urinary reservoir (OUR). The median follow-up period for each group was 4.0 years (range 0.3-11.2), 4.5 years (range 0.3-18.0), and 3.3 years (range 0.3-6.7), respectively. Regardless of the type of urinary diversion, the majority of patients reported having good overall quality of life, although with some problem of pain. No significant differences among urinary diversion subgroups were found in any quality of life area in the QLQ-C30 questionnaire. More patients in the OUR sub-group felt disappointment than those in the ileal conduit or cutaneostomy sub-groups. However, a questionnaire which asked which diversion method would be preferable showed a trend that more patients in the OUR subgroup would have chosen the same one. Health-related quality of life appeared relatively good in these 3 groups. Patient demands and expectations may be so different from the results that the details of each urinary diversion method should be explained thoroughly. OUR construction could be a candidate even for elderly patients. |
| キーワード | bladder cancer cystectomy neo-bladder urinary diversion QOL |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2007-08 |
| 巻 | 61巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 199 |
| 終了ページ | 203 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 17853939 |
| Web of Science KeyUT | 000248957100003 |
| JaLCDOI | 10.18926/AMO/48268 |
|---|---|
| フルテキストURL | 66_2_177.pdf.pdf |
| 著者 | Utsumi, Masashi| Matsuda, Hiroaki| Sadamori, Hiroshi| Shinoura, Susumu| Umeda, Yuzo| Yoshida, Ryuichi| Satoh, Daisuke| Hashimoto, Masaaki| Yagi, Takahito| Fujiwara, Toshiyoshi| |
| 抄録 | We report 4 cases of surgical resection of metachronous lymph node (LN) metastases from hepatocellular carcinoma (HCC) following hepatectomy. Clinicopathological features and results of LN dissection were investigated in the 4 patients. One patient was found to have a single metastasis in the mediastinal LNs, another had multiple metastases in the mediastinal and abdominal LNs, and the other 2 had single metastases in the abdominal LN. The locations of the abdominal LN metastases were behind the pancreas head in 2 patients and around the abdominal aorta in 1 patient. They all underwent surgical resection of metastatic LNs and had no postoperative complications. The 3 patients whose LN metastases were solitary have been alive for more than 2 years after LN resection, and one of them is free from recurrence. The patient with multiple LN metastases died 13 months after LN resection due to carcinomatosis. With the expectation of long-term survival, a single metachronous LN metastasis from HCC after hepatectomy should be resected in patients without uncontrollable intrahepatic or extrahepatic tumors. |
| キーワード | hepatocellular carcinoma lymph node metastasis hepatectomy |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-04 |
| 巻 | 66巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 177 |
| 終了ページ | 182 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22525476 |
| Web of Science KeyUT | 000303175300011 |
| JaLCDOI | 10.18926/AMO/48267 |
|---|---|
| フルテキストURL | 66_2_171.pdf.pdf |
| 著者 | Masuyama, Hisashi| Nobumoto, Etsuko| Segawa, Tomonori| Hiramatsu, Yuji| |
| 抄録 | Preeclampsia may be due to an excess of circulating anti-angiogenic growth factors derived from the placenta, but metabolic syndrome-like disorders may also set off a cascade of placental and systemic inflammation and oxidative stress. We present a case of severe superimposed preeclampsia with obesity, diabetes and a mild imbalance of angiogenic factors, in which diet therapy ameliorated the preeclamptic signs while improving the adiponectin level. A 41-year-old pregnant woman with obesity and diabetes was referred to our hospital because of severe proteinuria and hypertension at 22 weeks of gestation. After administration of insulin and hydralazine with diet therapy, her hypertension and proteinuria were ameliorated with a 15-kg weight loss. Her adiponectin level was low and her leptin level was high, but her angiogenic factor levels were within the normal ranges for pregnant women at admission. The diet therapy ameliorated her hypertension and proteinuria while improving her adiponectin level as she achieved weight loss. This case suggests that diet therapy for obese preeclampsia patients with a mild imbalance of anti-and pro-angiogenic factors may play an important role in managing preeclampsia. Measurements of maternal adipocytokines and angiogenic factors may be important to distinguish the main cause of preeclampsia, i.e., poor placentation or maternal constitutional factors, for managing preeclampsia in patients with obesity. |
| キーワード | adipocytokine angiogenic factor diet therapy obesity preeclampsia |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-04 |
| 巻 | 66巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 171 |
| 終了ページ | 175 |
| 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Ⓒ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22525475 |
| Web of Science KeyUT | 000303175300010 |