| JaLCDOI | 10.18926/ATM/61436 |
|---|---|
| フルテキストURL | 75_1_63.pdf |
| 著者 | Tada, Katsuhiko| Miyagi, Yasunari| Nakamura, Kazue| Yorozu, Moe| Fukushima, Emi| Kumazawa, Kazumasa| Nakamura, Makoto| Kageyama, Misao| |
| 抄録 | We used a differential equation to identify the biological relationship between the maternal prepregnancy body mass index (BMI) and lactation on postpartum day 4 in Japanese women with neonatal separation. This retro-spective observational study included 252 mothers (135 primiparas, 117 multiparas) whose singleton neonates were admitted to a neonatal ICU. We formulated hypotheses based on breast anatomy to analyze the relation-ship between the expressed milk obtained on postpartum day 4 and the maternal prepregnancy BMI with the following differential equation: y’(x) = k y(x)/x, where k is the constant, x is the prepregnancy BMI, and y is the expressed milk volume. The formula was then obtained as y(x) = axk, where a is the constant. The Akaike information criterion (AIC) was used to estimate the regression equation with the maximum likelihood for primiparas and multiparas. The best criteria for BMI determined by the AIC were 20.89 kg/m2 in primiparas and 20.19 kg/m2 in multiparas. These were the optimal BMI values for lactation, coinciding with the median prepregnancy BMI in the study population (20.78 kg/m2 in primiparas and 20.06 kg/m2 in multiparas). The formula based on biomathematics might help establish the biological relationship between prepregnancy BMI and breastmilk volume. |
| キーワード | biomathematics body mass index expressed milk lactation |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-02 |
| 巻 | 75巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 63 |
| 終了ページ | 69 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33649615 |
| JaLCDOI | 10.18926/AMO/61437 |
|---|---|
| フルテキストURL | 75_1_71.pdf |
| 著者 | Sanki, Tomoaki| Tetsunaga, Tomonori| Furumatsu, Takayuki| Yamada, Kazuki| Kawamura, Yoshi| Ozaki, Toshifumi| |
| 抄録 | Intra-operative acetabular fracture is a total hip arthroplasty complication that can occur during cementless cup insertion, especially in osteoporotic patients. We conducted this biomechanical study to investigate the impact resistance of the acetabulum with simulated bones of different density by drop-weight impact testing. Low- and high-density polyurethane foam blocks were used as osteoporotic and healthy bone models, respectively. Polyurethane blocks were used as the acetabular cancellous bone. Composite sheets were used as the acetabu-lum’s medial cortex. The testing revealed that the osteoporotic bone model’s impact resistance was significantly lower than that the healthy bone model’. In the healthy bone model, even thin acetabular cancellous bone with ≥ 1 mm acetabulum medial cortex was less likely to fracture. In the osteoporotic bone model, fracture was pos-sible without ≥ 1 mm medial cortex of the acetabulum and thick acetabular cancellous bone. Although impac-tion resistance differs due to bone quality, the impaction resistance in this osteoporotic bone model was equiv-alent to that healthy bone model’s when a thick medial wall was present. To avoid intra-operative acetabulum fracture, surgeons should consider both the bone quality and the thicknesses of the medial cortex and acetabu-lar cancellous bone. |
| キーワード | intra-operative acetabular fracture drop weight impact testing total hip arthroplasty impact resistance |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-02 |
| 巻 | 75巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 71 |
| 終了ページ | 77 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33649616 |
| JaLCDOI | 10.18926/AMO/61438 |
|---|---|
| フルテキストURL | 75_1_79.pdf |
| 著者 | Yoshio, Kotaro| Nagasaka, Hisako| Hisazumi, Kento| Okawa, Hiro| Tajiri, Nobuhisa| Shiode, Tsuyoki| Akaki, Shiro| Kanazawa, Susumu| Mitoma, Tomohiro| Yano, Yuri| Kobayashi, Emiko| Horiguchi, Ikuyo| Takata, Masayo| Hongo, Atsushi| Yonezawa, Masaru| Nakanishi, Yoshie| |
| 抄録 | The purposes of this retrospective study were to analyze local control of squamous cell carcinoma of the cervix treated with computed tomography (CT)-based image-guided brachytherapy (IGBT), as well as the factors affecting local control. A total of 39 patients were analyzed. The prescribed dose to the pelvis was 45-50 Gy with or without central shielding (CS). IGBT was delivered in 1-5 fractions. The total dose for high-risk clinical target volume (HR-CTV) was calculated as the biologically equivalent dose in 2-Gy fractions. The median follow-up period was 29.3 months. The 2-year overall survival and local control rates were 97% and 91%, respectively. In univariate analysis, the dose covering 90% of the HR-CTV (D90) and tumor size were found to be significant factors for local control. The cutoff values of tumor size and D90 for local control were 4.3 cm (area under the curve [AUC] 0.75) and 67.7 Gy (AUC 0.84) in the CS group and 5.3 cm (AUC 0.75) and 73.7 Gy (AUC 0.78) in the group without CS, respectively. However, though the local control of CT-based IGBT was favorable, the results suggested that the dose required for tumor control may differ depending on the presence of CS. |
| キーワード | cervical cancer squamous cell cancer brachytherapy central shielding |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-02 |
| 巻 | 75巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 79 |
| 終了ページ | 85 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33649617 |
| JaLCDOI | 10.18926/AMO/61439 |
|---|---|
| フルテキストURL | 75_1_87.pdf |
| 著者 | Shiotani, Toshio| Sugimoto, Seiichiro| Araki, Kota| Tomioka, Yasuaki| Miyoshi, Kentaroh| Otani, Shinji| Yamane, Masaomi| Toyooka, Shinichi| |
| 抄録 | Although chronic kidney disease (CKD) commonly develops after lung transplantation (LT), living-donor kid-ney transplantation (LDKT) for CKD after LT is known to provide favorable outcomes. We describe the long-term follow-up findings of a patient who underwent LDKT after bilateral cadaveric LT. A 37-year-old male underwent LDKT for CKD 18 years after receiving bilateral cadaveric LT. He developed chronic lung allograft dysfunction (CLAD) 20 years after the LT; however, at 26 years after the initial LT, he is still alive with no pro-gression of CLAD or CKD. KT could be a viable option for CKD even after LT in Japan. |
| キーワード | lung transplantation kidney transplantation chronic kidney disease non-tuberculous mycobacterial infection chronic lung allograft dysfunction |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-02 |
| 巻 | 75巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 87 |
| 終了ページ | 89 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33649618 |
| JaLCDOI | 10.18926/AMO/61440 |
|---|---|
| フルテキストURL | 75_1_91.pdf |
| 著者 | Shiotania, Toshio| Yamamoto, Hiromasa| Katsube, Riko| Tomioka, Yasuaki| Suzawa, Ken| Miyoshi, Kentaroh| Otani, Shinji| Okazaki, Mikio| Sugimoto, Seiichiro| Sohb, Junichi| Yamane, Masaomi| Toyooka, Shinichi| |
| 抄録 | Bronchopleural fistula (BPF) is a severe complication following lung resection. We present the case of a patient with a history of advanced lung cancer, who had undergone induction chemoradiotherapy followed by right middle and lower lobectomy, and who developed BPF after completion right pneumonectomy. Although we had covered the bronchial stump with an omental pedicled flap, BPF was found on postoperative day 19. We covered the fistula with n-butyl-2-cyanoacrylate (NBCA) using bronchoscopy. Although we had to repeat the NBCA treatment, we ultimately cured the patient’s BPF and no recurrence was observed up to 15.2 months after surgery. |
| キーワード | bronchopleural fistula pneumonectomy induction chemoradiotherapy n-butyl-2-cyanoacrylate (NBCA) omental pedicled flap |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-02 |
| 巻 | 75巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 91 |
| 終了ページ | 94 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33649619 |
| JaLCDOI | 10.18926/AMO/61441 |
|---|---|
| フルテキストURL | 75_1_103.pdf |
| 著者 | Senoo, Mayumi| Tone, Atsuhito| Imai, Yusuke| Watanabe, Satoko| Kaneto, Mitsuhiro| Shimomura, Yasuyuki| Teshigawara, Sanae| Nakatou, Tatsuaki| |
| 抄録 | A 43-year-old male with type 2 diabetes, under treatment with 5 mg/day of dapagliflozin, was referred to our hospital with upper left abdominal pain and marked hypertriglyceridemia (triglycerides [TGs], 5,960 mg/dl). He was also on a low-carbohydrate diet that promoted ketosis under sodium glucose cotransporter 2 (SGLT2) inhibitor administration. Polyacrylamide gel electrophoresis revealed a remarkable increase in very-low-den-sity lipoprotein, a TG-rich lipoprotein particle synthesized in the liver using free fatty acids derived from adi-pose tissue. Although SGLT2 inhibitors generally improve the lipid profile, under certain conditions such as a low-carbohydrate diet, they may adversely exacerbate the lipid profile via ketosis. |
| キーワード | sodium glucose cotransporter 2 inhibitor dyslipidemia hypertriglyceridemia type 2 diabetes mellitus |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-02 |
| 巻 | 75巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 103 |
| 終了ページ | 107 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33649621 |
| JaLCDOI | 10.18926/AMO/61442 |
|---|---|
| フルテキストURL | 75_1_95.pdf |
| 著者 | Minato, Keitaro| Hirano, Toru| Kawashima, Hiroyuki| Yamagishi, Tetsuro| Watanabe, Keigo| Ohashi, Masayuki| Ogose, Akira| Endo, Naoto| |
| 抄録 | A 21-year-old man consulted our hospital for treatment of a spinal giant cell tumor (GCT) of Enneking stage III. Lower lumbar-spine tumors and severe spinal canal stenosis are associated with high risk for surgical mor-bidity. Stability was temporarily secured with a percutaneous pedicle screw fixation in combination with deno-sumab, which shrank the tumor. Total en bloc spondylectomy was then performed 6 months after initiation of denosumab, and the patient was followed for 3 years. There was no local recurrence, and bony fusion was obtained. Minimally invasive surgery and denosumab allowed safer and easier treatment of a collapsing lower lumbar extra-compartmental GCT. |
| キーワード | spinal stabilization denosumab spondylectomy giant cell tumor |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-02 |
| 巻 | 75巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 95 |
| 終了ページ | 101 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33649620 |
| JaLCDOI | 10.18926/AMO/61443 |
|---|---|
| フルテキストURL | 75_1_109.pdf |
| 著者 | Xu, Xiaolei| Lu, Yanqiu| Harypursat, Vijay| Sun, Feng| Zhao, Ting| Zeng, Yanming| He, Xiaoqing| Chen, Yaokai| |
| 抄録 | The optimal timing of antiretroviral therapy (ART) initiation in human immunodeficiency virus (HIV)-infected patients with cryptococcal meningitis (HIV/CM) is controversial. We designed a clinical trial to inves-tigate the optimal timing for ART initiation in HIV/CM patients. This will be a multicenter, prospective, and randomized clinical trial. Each enrolled patient will be randomized into either the early ART arm or the deferred ART arm. We will compare the mortality and incident rates of immune reconstitution inflammatory syndrome between the two arms. We hope to elucidate the optimal timing for ART initiation in HIV/CM patients. |
| キーワード | human immunodeficiency virus meningitis cryptococcal antiretroviral therapy |
| Amo Type | Clinical Study Protocol |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-02 |
| 巻 | 75巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 109 |
| 終了ページ | 113 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33649622 |
| JaLCDOI | 10.18926/AMO/61877 |
|---|---|
| フルテキストURL | 75_2_115.pdf |
| 著者 | Hitomi, Nishizaki| Yoshinari, Morimoto| Yamada, Shin-ichi| Kurita, Hiroshi| Tanaka, Akira| Yamaguchi, Akira| Miyata, Masaru| Yoshikawa, Hiromasa | Yanamoto, Souichi| Imai, Yutaka| |
| 抄録 | The aim of this study was to investigate the awareness and experience, among dental practitioners, of adverse events resulting from dental treatment of patients undergoing therapy with drugs that affect the immune system [angiogenesis inhibitors, biological agents, immunosuppressants, and disease-modifying anti-rheumatic drugs (DMARDs)]. For this purpose, a nationwide questionnaire survey was conducted. Questionnaires were sent to 2,050 dentists, of which 206 (10.1%) were completed and returned. The results showed that most dentists were aware of complications associated with dental treatment of patients treated with drugs that affect the immune system, and about half had actually experienced such complications. Delayed wound healing, osteonecrosis of the jaw (ONJ), and postoperative infections were reported. Whereas approximately 50% of dentists did not discontinue the drugs during dental treatment, about 18% did. During temporary drug discontinuation, some patients experienced aggravation of the primary disease, such as worsening of rheumatism, growth of tumors, and rejection reactions of transplanted organs. As for medical cooperation, only less than half of the dentists were asked for oral hygiene management by a physician prior to starting the drug treatment. Prospective studies are needed because evidence for dental treatments in patients treated with these drugs remains limited. |
| キーワード | angiogenesis inhibitor biological agent disease-modifying antirheumatic drug (DMARD) immunosuppressant medication-related osteonecrosis of the jaw (MRONJ) |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 115 |
| 終了ページ | 123 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953417 |
| NAID | 120007029906 |
| JaLCDOI | 10.18926/AMO/61878 |
|---|---|
| フルテキストURL | 75_2_125.pdf |
| 著者 | Kijima, Yasufumi| Kondo, Naoki| Okumura, Go| Endo, Naoto| |
| 抄録 | Rheumatoid arthritis (RA) affects the hip joints. The microarchitecture of the cancellous bone in RA-affected hip joints has been unclear. Here we investigated the bone metabolism changes in the subcapital cancellous bone of destructive hips of RA patients (n=26 patients; 28 hip joints) which were classified by Larsen grade on X-ray into the groups: destructive hip (Des) (Larsen grade IV, n=18) and neck fracture (Fx) (Larsen grade 0 or 1, n=10). The femoral heads of the Des-group showed significantly higher trabecular thickness versus those of the Fx-group (179±30.8 vs. 151±23.5 μm, p=0.02). The Des-group had significantly higher osteoid volume/tissue volume (OV/TV) and osteoid volume/bone volume (OV/BV) ratios than the Fx-group (OV/TV: 0.72±0.70% vs. 0.27±0.32%, p=0.028; OV/BV: 2.96±2.85% vs. 1.24±1.31%, p=0.039). The osteoblast and osteoclast surface areas of the Des-group were remarkably higher than those of the Fx-group (9.80±10.9 vs. 0.15±0.15%, p=0.0005; 0.34±0.48 vs. 0.06±0.06%, p=0.0285, respectively). The T-scores of hip (femoral neck) bone mineral density (BMD) of the Fx-group were significantly lower versus those of the Des-group (−3.1±0.76 vs. −1.6±1.17, p<0.01). Increased osteoid and resorption parameters and higher femoral neck BMD demonstrate a high bone-turnover state in response to destructive changes in the hips of RA patients. |
| キーワード | bone histomorphometry rheumatoid arthritis destructive hip femoral neck fracture bone turnover |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 125 |
| 終了ページ | 131 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953418 |
| NAID | 120007029905 |
| JaLCDOI | 10.18926/AMO/61879 |
|---|---|
| フルテキストURL | 75_2_133.pdf |
| 著者 | Hashida, Shinsuke| Tanaka, Norimitsu| Takahashi, Yuta| Onoda, Yuji| Colvin, Hugh Shunsuke| Ohashi, Ryuichiro| Okamoto, Kunio | |
| 抄録 | As the nanoparticle albumin-bound paclitaxel (nab-PTX) is free of ethanol and premedication, the duration of administration is shorter and patients can drive themselves to and from the hospital. In the 2018 Japanese gastric cancer treatment guidelines, ramucirumab (RAM) plus weekly nab-PTX is conditionally recommended for previously treated patients with advanced gastric cancer. Here, we retrospectively analysed the efficacy and safety of RAM+nab-PTX for such patients in community hospitals. From January 2018 to December 2019, 43 patients with metastatic and recurrent gastric cancer received RAM+nab-PTX treatment. Six patients (13.9%) were older than 80 years and 9 patients (20.9%) showed ECOG-PS 2. Progression-free survival (PFS), overall survival (OS), overall response rate (ORR), disease control rate (DCR), and adverse events (AEs) were reviewed retrospectively. Median PFS was 114 days (95% confidence interval [CI]: 84-190) and median OS was 297 days (95% CI: 180-398). ORR and DCR were 32.4% and 72.2%, respectively. The incidence rates of ≥grade 3 neutropenia and febrile neutropenia were 53.5% and 2.3%, respectively. No treatment-related deaths occurred. RAM plus nab-PTX combination therapy demonstrated manageable toxicity even patients who were elderly or had an ECOG-PS 2. This treatment is useful in community hospital settings. |
| キーワード | gastric cancer ramucirumab nab-paclitaxel |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 133 |
| 終了ページ | 138 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953419 |
| NAID | 120007029904 |
| JaLCDOI | 10.18926/AMO/61880 |
|---|---|
| フルテキストURL | 75_2_139.pdf |
| 著者 | Hamada, Kentaro| Kuroda, Masahiro| Yoshimura, Yuuki | Khasawneh, Abdullah| Barham, Majd| Tekiki, Nouha| Sugianto, Irfan| Bamgbose, Babatunde O.| Konishi, Kohei| Sugimoto, Kohei| Ishizaka, Hinata| Kurozumi, Akira| Matsushita, Toshi | Ohno, Seiichiro| Kanazawa, Susumu| Asaumi, Junichi| |
| 抄録 | Diffusion-weighted imaging may be used to obtain the apparent diffusion coefficient (ADC), which aids the diagnosis of cerebral infarction and tumors. An ADC reflects elements of free diffusion. Diffusion kurtosis imaging (DKI) has attracted attention as a restricted diffusion imaging technique. The ADC subtraction method (ASM) was developed to visualize restricted diffusion with high resolution by using two ADC maps taken with different diffusion times. We conducted the present study to provide a bridge between the reported basic ASM research and clinical research. We developed new imaging software for clinical use and evaluated its performance herein. This software performs the imaging process automatically and continuously at the pixel level, using ImageJ software. The new software uses a macro or a plugin which is compatible with various operating systems via a Java Virtual Machine. We tested the new imaging software’s performance by using a Jurkat cell bio-phantom, and the statistical evaluation of the performance clarified that the ASM values of 99.98% of the pixels in the bio-phantom and physiological saline were calculated accurately (p<0.001). The new software may serve as a useful tool for future clinical applications and restricted diffusion imaging research. |
| キーワード | apparent diffusion coefficient ADC subtraction method restricted diffusion ImageJ plugin |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 139 |
| 終了ページ | 145 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953420 |
| NAID | 120007029903 |
| JaLCDOI | 10.18926/AMO/61881 |
|---|---|
| フルテキストURL | 75_2_147.pdf |
| 著者 | Xue, Haowei | Furumatsu, Takayuki| Okazaki, Yuki | Hiranaka, Takaaki | Kintaka, Keisuke | Fujii, Masataka | Zhang, Ximing| Ozaki, Toshifumi| |
| 抄録 | Medial meniscus posterior root tears (MMPRTs) have recently attracted considerable interest in orthopedics. To date, no in vivo human study has investigated suture translation changes in repaired MMPRTs with different degrees of knee flexion. This study examined suture translation at various degrees of knee flexion in 30 patients undergoing medial meniscus posterior root repair using the modified Mason-Allen suture technique between August 2016 and September 2017. Intraoperatively, sutures were provisionally fixed to an isometric positioner at the tibial site of the desired meniscal attachment, and the suture translation was measured at 0°, 30°, 60°, and 90° of knee flexion. The results showed significant increases in mean suture translation at the knee flexion positions from 0° to 30°, 30° to 60°, and 60° to 90° (p<0.01 for all). Our findings indicate that surgeons should carefully assess the degree of knee flexion at the moment when the meniscus is refixed by surgical sutures. |
| キーワード | medial meniscus posterior root tear suture translation knee flexion arthroscopic repair |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 147 |
| 終了ページ | 152 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953421 |
| NAID | 120007029902 |
| JaLCDOI | 10.18926/AMO/61894 |
|---|---|
| フルテキストURL | 75_2_153.pdf |
| 著者 | Shimaoka, Shigeyoshi| Hamaoka, Hitomi| Inoue, Junji| Asanuma, Masato| Tooyama, Ikuo| Kondo, Yoichi| |
| 抄録 | Lactoferrin (Lf) is an iron-binding glycoprotein mainly found in exocrine secretions and the secondary granules of neutrophils. In the central nervous system (CNS), expression of the Lf protein has been reported in the lesions of some neurodegenerative disorders such as Alzheimer’s disease, Parkinson’s disease, and amyotrophic lateral sclerosis, as well as in the aged brain. Lf is primarily considered an iron chelator, protecting cells from potentially toxic iron or iron-requiring microorganisms. Other biological functions of Lf include immunomodulation and transcriptional regulation. However, the roles of Lf in the CNS have yet to be fully clarified. In this study, we raised an antiserum against mouse Lf and investigated the immunohistochemical localization of Lf-like immunoreactivity (Lf-LI) throughout the CNS of adult mice. Lf-LI was found in some neuronal populations throughout the CNS. Intense labeling was found in neurons in the olfactory systems, hypothalamic nuclei, entorhinal cortex, and a variety of brainstem nuclei. This study provides detailed information on the Lf-LI distribution in the CNS, and the findings should promote further understanding of both the physiological and pathological significance of Lf in the CNS. |
| キーワード | lactoferrin immunohistochemistry brain mapping |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 153 |
| 終了ページ | 167 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953422 |
| NAID | 120007029892 |
| JaLCDOI | 10.18926/AMO/61895 |
|---|---|
| フルテキストURL | 75_2_177.pdf |
| 著者 | Inoue, Madoka| Noda, Tomoyuki| Uehara, Takenori| Tetsunaga, Tomonori| Yamada, Kazuki| Saito, Taichi| Shimamura, Yasunori| Yamakawa, Yasuaki| Ozaki, Toshifumi| |
| 抄録 | This retrospective study sought to elucidate the incidence rates of roof impaction (RI) and marginal impaction (MI) and radiological and clinical outcomes of open reduction and internal fixation (ORIF) for RI and MI in geriatric acetabular fractures. The cases of 68 patients aged ≥ 65 years (mean 71 years) treated with ORIF were analyzed. MI was present in 12 fractures (67%) and an RI of the weight-bearing surface was present in 24 (46%) of the potential fracture types. Regarding the reduction quality, 54% of the reductions were graded as anatomical, 37% as imperfect, and 9% as poor. In the clinical evaluations of the 45 patients who had > 1-year follow-up (follow-up rate: 66.2%), 18% were graded as excellent, 53% as good, 16% as fair, and 13% as poor. An anatomic reduction was strongly associated with good or excellent clinical and radiological outcomes. CT was superior to radiographs for detecting the residual displacement postoperatively. Postoperative deep infection occurred in four patients. Three patients (6.7%) underwent a total hip arthroplasty conversion due to secondary osteoarthritis of the hip. We recommend ORIF as the preferred surgical treatment option for displaced acetabular fractures in elderly patients. |
| キーワード | acetabular fracture osteosynthesis marginal impaction roof impaction elderly patient |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 177 |
| 終了ページ | 185 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953423 |
| NAID | 120007029891 |
| JaLCDOI | 10.18926/AMO/61896 |
|---|---|
| フルテキストURL | 75_2_169.pdf |
| 著者 | Nakada, Tetsuya| Kataoka, Takahiro| Nomura, Takaharu| Shuto, Hina| Yano, Junki| Naoe, Shota| Hanamoto, Katsumi| Yamaoka, Kiyonori| |
| 抄録 | The forced swim test (FST) induces immobility in mice. Low-dose (high-dose-rate) X-irradiation inhibits FSTinduced immobility in mice due to its antioxidative function. We evaluated the effects of low-dose γ-irradiation at a low-dose-rate on the FST-induced depletion of antioxidants in mouse organs. Mice received whole-body low-dose-rate (0.6 or 3.0 mGy/h) of low-dose γ-irradiation for 1 week, followed by daily FSTs (5 days). The immobility rate on day 2 compared to day 1 was significantly lower in the 3.0 mGy/h irradiated mice than in sham irradiated mice. The FST significantly decreased the catalase (CAT) activity and total glutathione (t-GSH) content in the brain and kidney, respectively. The superoxide dismutase (SOD) activity and t-GSH content in the liver of the 3.0 mGy/h irradiated mice were significantly lower than those of the non-FST-treated mice. The CAT activity in the lungs of mice exposed to 3.0 mGy/h γ-irradiation was higher than that of non-FST treated mice and mice treated with FST. However, no significant differences were observed in the levels of these antioxidant markers between the sham and irradiated groups except for the CAT activity in lungs. These findings suggest that the effects of low-dose-rate and low-dose γ-irradiation on FST are highly organ-dependent. |
| キーワード | low-dose-rate γ-irradiation forced swim test antioxidant oxidative stress |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 169 |
| 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Ⓒ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953424 |
| NAID | 120007029890 |
| JaLCDOI | 10.18926/AMO/61897 |
|---|---|
| フルテキストURL | 75_2_187.pdf |
| 著者 | Fujiwara, Yuta| Sasaki, Tomoaki| Muto, Yuki| Hirano, Masaki| Kamizaki, Ryo| Murakami, Kaito| Miura, Naoya| Fujibuchi, Yutaka| Ohmukai, Nayu| Ueda, Nao | Sugimoto, Kouhei | Ota, Kazuhiro| Kamihoriuchi, Yoshiki| Sasaki, Tomoko| Kaneshige, Souichirou| |
| 抄録 | The aim of this study is to evaluate how metallic artifacts in the lumbar spine can affect images obtained from magnetic resonance (MR) sequences. We performed a phantom experiment by scanning an agar containing an orthopedic metallic implant using 64-channel multidetector row computed tomography (CT) and a 3-tesla MR unit. We compared the reproducibility in each measurement, enlargement or reduction ratio of the CT and MR measurements, and signal deviation in each voxel from the control. The reproducibility on CT and multiacquisition variable-resonance image combination selective (MAVRIC SL) was good, but that on the other MR sequences showed either fixed bias or proportional bias. The reduction ratios of the distance between the nails were significantly smaller in MAVRIC SL than in the other MR sequences after CT measurements (p<0.001, respectively). MAVRIC SL was able to reduce the metallic artifact, permitting observation of the tissue surrounding the metal with good reproducibility. |
| キーワード | metallic artifact reduction implant MAVRIC SL |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 187 |
| 終了ページ | 197 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953425 |
| NAID | 120007029889 |
| JaLCDOI | 10.18926/AMO/61901 |
|---|---|
| フルテキストURL | 75_2_199.pdf |
| 著者 | Matsuda, Tatsuo| Umeda, Yuzo| Yoshida, Kazuhiro| Matsuda, Tadakazu| Uno, Masatoshi| Abe, Masaya| Asada, Noboru| Maeda, Yoshinobu| Yagi, Takahito| Fujiwara, Toshiyoshi| |
| 抄録 | We present the first case of laparoscopic left lateral segmentectomy for hepatocellular carcinoma (HCC) in a patient with hemophilia A, acquired hepatitis C, and high-titer factor VIII inhibitor, which was confirmed by preoperative diagnosis. He underwent laparoscopic left lateral segmentectomy with the administration of recombinant activated factor VII. Surgery could be performed with reduced intraoperative hemorrhage. He experienced postoperative intra-abdominal wall hemorrhage, which was successfully managed with red cell concentrates transfusion and administration of recombinant activated factor VII. Laparoscopic hepatectomy can be applied for hemophilia patients with high titer inhibitors. |
| キーワード | hemophilia A hepatectomy inhibitor laparoscopy hepatocellular carcinoma |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 199 |
| 終了ページ | 204 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953426 |
| NAID | 120007029886 |
| JaLCDOI | 10.18926/AMO/61902 |
|---|---|
| フルテキストURL | 75_2_205.pdf |
| 著者 | Hoshijima, Mitsuhiro| Kawanabe, Noriaki| Iida, Seiji| Yamashiro, Takashi| Kamioka, Hiroshi| |
| 抄録 | We herein report the case of a 19-year-old female with a transverse discrepancy, skeletal Class II malocclusion, severe crowding with concerns of classic-type Ehlers-Danlos syndrome (EDS), aesthetics problems and functional problems. The main characteristics of classic EDS are loose-jointedness and fragile, easily bruised skin that heals with peculiar “cigarette-paper” scars. The anteroposterior and transverse skeletal discrepancies can generally be resolved by maxilla repositioning and mandibular advancement surgery following pre-surgical orthodontic treatment. However, this patient was treated with orthodontic camouflage but not orthognathic surgery because of the risks of skin bruising, poor healing and a temporomandibular disorder. A satisfactory dental appearance and occlusion were achieved after camouflage treatment with orthodontic anchor screws and the use of Class II elastics, including the preservation of the stomatognathic functions. Acceptable occlusion and dentition were maintained after a two-year retention period. This treatment strategy of orthodontic camouflage using temporary anchorage, such as anchor screws and Class II elastics, may be a viable treatment option for skeletal malocclusion patients with EDS. |
| キーワード | asymmetry Class II camouflage orthodontic anchor screw Ehlers-Danlos syndrome |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 205 |
| 終了ページ | 212 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953427 |
| NAID | 120007029885 |
| JaLCDOI | 10.18926/AMO/61903 |
|---|---|
| フルテキストURL | 75_2_213.pdf |
| 著者 | Miyashita, Manabi| Saragai, Yousuke| Fujimoto, Tsuyoshi| Tanaka, Shouichi| Aoki, Hideki| Sato, Yumiko | |
| 抄録 | A 75-year-old Japanese man visited our hospital for further examination of liver tumors. He had a history of successful hepatitis C virus (HCV) eradication and therapy for hepatocellular carcinoma (HCC) at another hospital. Magnetic resonance imaging (MRI) revealed two tumors in the liver. He underwent anterior inferior (S5) and posterior inferior (S6) subsegmentectomy of the liver. Microscopic examination found that one tumor was HCC while the other was cholangiolocellular carcinoma (CoCC). We experienced a rare case of liver cancer with two synchronous pathologies, HCC and CoCC. |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2021-04 |
| 巻 | 75巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 213 |
| 終了ページ | 218 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2021 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33953428 |
| NAID | 120007029884 |