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Sawada K, Kawakami S, Tahara Y, Nakashima T, Nishihira K, Kanaya T, Kataoka Y, Asaumi Y, Noguchi T, Yasuda S. P2780Clinical utility of echocardiography to predict successful weaning from percutaneous veno-arterial extracorporeal membrane oxygenation in patients with cardiogenic shock or cardiac arrest. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Noguchi T, Ebina K, Hirao M, Morimoto T, Koizumi K, Kitaguchi K, Matsuoka H, Iwahashi T, Yoshikawa H. Oxygen ultra-fine bubbles water administration prevents bone loss of glucocorticoid-induced osteoporosis in mice by suppressing osteoclast differentiation. Osteoporos Int 2017; 28:1063-1075. [PMID: 27896363 DOI: 10.1007/s00198-016-3830-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 11/02/2016] [Indexed: 11/25/2022]
Abstract
UNLABELLED Oxygen ultra-fine bubbles (OUB) saline injection prevents bone loss of glucocorti\coid-induced osteoporosis in mice, and OUB inhibit osteoclastogenesis via RANK-TRAF6-c-Fos-NFATc1 signaling and RANK-p38 MAPK signaling in vitro. INTRODUCTION Ultra-fine bubbles (<200 nm in diameter) have several unique properties, and they are tested in various medical fields. The purpose of this study was to investigate the effects of oxygen ultra-fine bubbles (OUB) on glucocorticoid-induced osteoporosis (GIO) model mice. METHODS Prednisolone (PSL, 5 mg) was subcutaneously inserted in 6-month-old male C57BL/6J mice, and 200 μl of saline, OUB-diluted saline, or nitrogen ultra-fine bubbles (NUB)-diluted saline was intraperitoneally injected three times per week for 8 weeks the day after operations. Mice were divided into four groups; (1) control, sham-operation + saline; (2) GIO, PSL + saline; (3) GIO + OUB, PSL + OUB saline; (4) GIO + NUB, PSL + NUB saline. The effects of OUB on osteoblasts and osteoclasts were examined by serially diluted OUB medium in vitro. RESULTS Bone mass was significantly decreased in GIO [bone volume/total volume (%): control vs. GIO 12.6 vs. 7.9; p < 0.01] while significantly preserved in GIO + OUB (GIO vs. GIO + OUB 7.9 vs. 12.9; p < 0.05). In addition, tartrate-resistant acid phosphatase (TRAP)-positive cells in the distal femur [mean osteoclasts number/bone surface (mm-1)] was significantly increased in GIO (control vs. GIO 6.8 vs. 11.6; p < 0.01) while suppressed in GIO + OUB (GIO vs. GIO + OUB 11.6 vs. 7.5; p < 0.01). NUB did not affect these parameters. In vitro experiments revealed that OUB significantly inhibited osteoclastogenesis by inhibiting RANK-TRAF6-c-Fos-NFATc1 signaling, RANK-p38 MAPK signaling, and TRAP/Cathepsin K/DC-STAMP mRNA expression in a concentration-dependent manner. OUB did not affect osteoblastogenesis in vitro. CONCLUSIONS OUB prevent bone loss in GIO mice by inhibiting osteoclastogenesis.
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Kakuta E, Nomura Y, Morozumi T, Nakagawa T, Nakamura T, Noguchi K, Yoshimura A, Hara Y, Fujise O, Nishimura F, Kono T, Umeda M, Fukuda M, Noguchi T, Yoshinari N, Fukaya C, Sekino S, Numabe Y, Sugano N, Ito K, Kobayashi H, Izumi Y, Takai H, Ogata Y, Takano S, Minabe M, Makino-Oi A, Saito A, Abe Y, Sato S, Suzuki F, Takahashi K, Sugaya T, Kawanami M, Hanada N, Takashiba S, Yoshie H. Assessing the progression of chronic periodontitis using subgingival pathogen levels: a 24-month prospective multicenter cohort study. BMC Oral Health 2017; 17:46. [PMID: 28093069 PMCID: PMC5240246 DOI: 10.1186/s12903-017-0337-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Accepted: 01/06/2017] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The diagnosis of the progression of periodontitis presently depends on the use of clinical symptoms (such as attachment loss) and radiographic imaging. The aim of the multicenter study described here was to evaluate the diagnostic use of the bacterial content of subgingival plaque recovered from the deepest pockets in assessing disease progression in chronic periodontitis patients. METHODS This study consisted of a 24-month investigation of a total of 163 patients with chronic periodontitis who received trimonthly follow-up care. Subgingival plaque from the deepest pockets was recovered and assessed for bacterial content of Porphyromonas gingivalis, Prevotella intermedia, and Aggregatibacter actinomycetemcomitans using the modified Invader PLUS assay. The corresponding serum IgG titers were measured using ELISA. Changes in clinical parameters were evaluated over the course of 24 months. The sensitivity, specificity, and prediction values were calculated and used to determine cutoff points for prediction of the progression of chronic periodontitis. RESULTS Of the 124 individuals who completed the 24-month monitoring phase, 62 exhibited progression of periodontitis, whereas 62 demonstrated stable disease. The P. gingivalis counts of subgingival plaque from the deepest pockets was significantly associated with the progression of periodontitis (p < 0.001, positive predictive value = 0.708). CONCLUSIONS The P. gingivalis counts of subgingival plaque from the deepest pockets may be associated with the progression of periodontitis.
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Doi T, Kataoka Y, Noguchi T, Shibata T, Kawakami S, Nagai T, Kanaya T, Tahara Y, Asaumi Y, Ogawa H, Yasuda S, Honda S. Coronary Artery Ectasia is A High Risk Phenotype Associated with Future Cardiac Events in Patients with Acute Myocardial Infarction. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Koizumi K, Ebina K, Hart DA, Hirao M, Noguchi T, Sugita N, Yasui Y, Chijimatsu R, Yoshikawa H, Nakamura N. Synovial mesenchymal stem cells from osteo- or rheumatoid arthritis joints exhibit good potential for cartilage repair using a scaffold-free tissue engineering approach. Osteoarthritis Cartilage 2016; 24:1413-22. [PMID: 26973329 DOI: 10.1016/j.joca.2016.03.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To assess whether synovial mesenchymal stem cells (SMSCs) from patients with osteoarthritis (OA) or rheumatoid arthritis (RA) can be used as an alternative cell source for cartilage repair using allogenic tissue engineered construct (TEC). METHODS Twenty-five patients (17 female, average age 61.8 years) were divided according to their pathology (control trauma group; N = 6, OA group; N = 6) and RA patients were subdivided into two groups to evaluate the impact of biologics in accordance with whether treated with biologics [Bio(+)RA; N = 7] or not [Bio(-)RA; N = 6]. We compared the following characteristics among these groups: (1) The cell proliferation capacity of SMSCs; (2) The influence of passage number on features of SMSCs; (3) The weight and volume of TEC from the same number of SMSCs; (4) Inflammatory cytokine gene expressions levels of TEC; (5) The chondrogenic potential of TEC; and (6) Osteochondral repair using TEC in athymic nude rats. RESULTS SMSCs from the four groups exhibited equivalent features in the above evaluation items. In in vivo studies, the TEC-treated repair tissues for all groups exhibited significantly better outcomes than those for the untreated group and no significant differences among the four TEC groups. CONCLUSION SMSCs from OA or RA patients are no less appropriate for repairing cartilage than those from trauma patients and thus, may be an effective source for allogenic cell-based cartilage repair.
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Suzuki T, Jinno S, Hattori N, Okeya H, Ishikawa A, Deguchi M, Ohno Y, Kawai T, Noguchi T. The Biological Properties of a Novel Ethyl Methacrylate Resin. J Int Med Res 2016; 34:256-63. [PMID: 16866019 DOI: 10.1177/147323000603400304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A novel ethyl methacrylate (EMA) resin was developed to overcome the tissue, organ and systemic damage associated with the residual monomer of conventional methyl methacrylate (MMA) resin bone cement. EMA resin is a chemical/ photopolymerizable material and is easy to handle during clinical procedures. The biocompatibility of EMA was evaluated in accordance with ISO10993-6. No inflammatory response was observed 1 and 9 weeks after implantation in the dorsal subcutaneous tissue of ddY mice. EMA resin also demonstrated better biocompatibility when compared with conventional bone cements. Poly-l-lactic acid (PLLA) was used as a carrier for bone morphogenetic protein (BMP) and added to the EMA slurry. The EMA-PLLA composite membrane was sticky and BMP readily adhered to its surface. The EMA-PLLA-BMP composite membrane induced new bone formation, the new bone growing in the shape of the EMA in the thigh muscle pouch of ddY mice. This novel EMA resin has many potential clinical applications.
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Morozumi T, Nakagawa T, Nomura Y, Sugaya T, Kawanami M, Suzuki F, Takahashi K, Abe Y, Sato S, Makino-Oi A, Saito A, Takano S, Minabe M, Nakayama Y, Ogata Y, Kobayashi H, Izumi Y, Sugano N, Ito K, Sekino S, Numabe Y, Fukaya C, Yoshinari N, Fukuda M, Noguchi T, Kono T, Umeda M, Fujise O, Nishimura F, Yoshimura A, Hara Y, Nakamura T, Noguchi K, Kakuta E, Hanada N, Takashiba S, Yoshie H. Salivary pathogen and serum antibody to assess the progression of chronic periodontitis: a 24-mo prospective multicenter cohort study. J Periodontal Res 2016; 51:768-778. [PMID: 26791469 DOI: 10.1111/jre.12353] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND OBJECTIVE A diagnosis of periodontitis progression is presently limited to clinical parameters such as attachment loss and radiographic imaging. The aim of this multicenter study was to monitor disease progression in patients with chronic periodontitis during a 24-mo follow-up program and to evaluate the amount of bacteria in saliva and corresponding IgG titers in serum for determining the diagnostic usefulness of each in indicating disease progression and stability. MATERIAL AND METHODS A total of 163 patients with chronic periodontitis who received trimonthly follow-up care were observed for 24 mo. The clinical parameters and salivary content of Porphyromonas gingivalis, Prevotella intermedia and Aggregatibacter actinomycetemcomitans were assessed using the modified Invader PLUS assay, and the corresponding serum IgG titers were measured using ELISA. The changes through 24 mo were analyzed using cut-off values calculated for each factor. One-way ANOVA or Fisher's exact test was used to perform between-group comparison for the data collected. Diagnostic values were calculated using Fisher's exact test. RESULTS Of the 124 individuals who completed the 24-mo monitoring phase, 62 exhibited periodontitis progression, whereas 62 demonstrated stable disease. Seven patients withdrew because of acute periodontal abscess. The ratio of P. gingivalis to total bacteria and the combination of P. gingivalis counts and IgG titers against P. gingivalis were significantly related to the progression of periodontitis. The combination of P. gingivalis ratio and P. gingivalis IgG titers was significantly associated with the progression of periodontitis (p = 0.001, sensitivity = 0.339, specificity = 0.790). CONCLUSIONS It is suggested that the combination of P. gingivalis ratio in saliva and serum IgG titers against P. gingivalis may be associated with the progression of periodontitis.
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Ebina K, Noguchi T, Hirao M, Hashimoto J, Kaneshiro S, Yukioka M, Yoshikawa H. Effects of switching weekly alendronate or risedronate to monthly minodronate in patients with rheumatoid arthritis: a 12-month prospective study. Osteoporos Int 2016; 27:351-9. [PMID: 26475289 DOI: 10.1007/s00198-015-3369-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 10/07/2015] [Indexed: 01/06/2023]
Abstract
UNLABELLED Switching weekly ALN or RIS to monthly MIN in patients with RA, of whom two-thirds were treated with low-dose PSL, significantly decreased bone turnover markers and increased BMD at 12 months, suggesting that monthly MIN may be an effective alternative treatment option of oral bisphosphonate treatment. INTRODUCTION The aim of this prospective, observational study was to evaluate the effects of switching weekly alendronate (ALN 35 mg) or risedronate (RIS 17.5 mg) to monthly minodronate (MIN 50 mg) in patients with rheumatoid arthritis (RA). METHODS Patient characteristics were as follows: n = 172; 155 postmenopausal women, age 65.5 (44–87) years; T-score of lumbar spine (LS), −1.4; total hip (TH), −1.8; femoral neck (FN), −2.1; dose and rate of oral prednisolone (2.3 mg/day), 69.1 %; prior duration of ALN or RIS, 46.6 months; were allocated, based on their preference, to either the (1) continue group (n = 88), (2) switch-from-ALN group (n = 44), or (3) switch-from-RIS group (n = 40). RESULTS After 12 months, increase in BMD was significantly greater in group 3 compared to group 1: LS (4.1 vs 1.2 %; P < 0.001), TH (1.9 vs −0.7 %; P < 0.01), and FN (2.7 vs −0.5 %; P < 0.05); and in group 2 compared to group 1: LS (3.2 vs 1.2 %; P < 0.05) and TH (1.5 vs −0.7 %; P < 0.01). The decrease in bone turnover markers was significantly greater in group 3 compared to group 1: TRACP-5b (−37.3 vs 2.5 %; P < 0.001), PINP (−24.7 vs −6.2 %; P < 0.05), and ucOC (−39.2 vs 13.0 %; P < 0.05); and in group 2 compared to group 1: TRACP-5b (−12.5 vs 2.5 %; P < 0.05) at 12 months. CONCLUSIONS Switching weekly ALN or RIS to monthly MIN in patients with RA may be an effective alternative treatment option of oral bisphosphonate treatment.
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Hamadou WS, Abed RE, Besbes S, Bourdon V, Fabre A, Youssef YB, Laatiri MA, Eisinger F, Mari V, Gesta P, Dreyfus H, Bonadona V, Dugast C, Zattara H, Faivre L, Jemni SY, Noguchi T, Khélif A, Sobol H, Soua Z. Familial hematological malignancies: ASXL1 gene investigation. Clin Transl Oncol 2015; 18:385-90. [DOI: 10.1007/s12094-015-1379-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 08/05/2015] [Indexed: 10/23/2022]
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Ebina K, Hashimoto J, Hirao M, Hagihara K, Noguchi T, Yoshikawa H. FRI0301 Assessment of the Effect of 12 Months Administration of Denosumab in Patients with Rheumatic Diseases – Bone Mineral Density Increase in Lumbar Spine is Negatively Correlated with Baseline Oral Prednisolone Dose and Predicted by Decreasing Rate of Serum Undercarboxylated Osteocalcin at 6 Months. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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86
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Suzuki Y, Hieda M, Fujiwara R, Yamamoto K, Fukui N, Konishi H, Arakawa T, Kumasaka R, Nakanishi M, Fukui S, Nakao K, Ohara T, Noguchi T, Yanase M, Ito K, Goto Y. Correlating factors of exercise capacity improvement after cardiac rehabilitation in post-coronary artery bypass graft surgery patients. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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87
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Fukuhara Y, Yamamoto S, Yano F, Orita Y, Fujiwara Y, Ueda N, Kamada T, Noguchi T, Tanaka T. Changes in activities and mRNA levels of glycolytic enzymes of ischemia-reperfused rat kidney. CONTRIBUTIONS TO NEPHROLOGY 2015; 95:222-8. [PMID: 1807913 DOI: 10.1159/000420663] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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88
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Hirachi T, Ishii H, Tada Y, Noguchi T, Haraguchi Y, Tateishi H, Mizoguchi Y, Kato TA, Kawashima T, Monji A. Mania occurring during systemic lupus erythematosus relapse and its amelioration on clinical and neuroimaging follow-up. Lupus 2015; 24:990-3. [DOI: 10.1177/0961203315570161] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 01/07/2015] [Indexed: 11/17/2022]
Abstract
Psychiatric manifestations of systemic lupus erythematosus (SLE) that are commonly preceded by organic syndromes include confusional states, anxiety disorder, cognitive dysfunction, mood disorder and psychosis. A 35-year-old woman was admitted to hospital with a relapse of SLE. Laboratory data were exacerbated, with some physical symptoms, and her primary psychiatric symptom was mania. The symptoms were reduced by treatment with prednisolone, methylprednisolone and aripiprazole. Magnetic resonance imaging and single-photon emission computed tomography (SPECT) using 123I-IMP was then performed and analyzed with three-dimensional stereotactic surface projection. This case emphasizes that SLE can commence with organic syndromes and relapse with predominantly psychiatric symptoms, and that the treatment efficacy may be confirmed using a follow-up of SPECT.
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Takagi K, Asano K, Haneishi A, Ono M, Komatsu Y, Yamamoto T, Tanaka T, Ueno H, Ogawa W, Tomita K, Noguchi T, Yamada K. Insulin stimulates the expression of the SHARP-1 gene via multiple signaling pathways. Horm Metab Res 2014; 46:397-403. [PMID: 24446161 DOI: 10.1055/s-0033-1363981] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The rat enhancer of split- and hairy-related protein-1 (SHARP-1) is a basic helix-loop-helix transcription factor. An issue of whether SHARP-1 is an insulin-inducible transcription factor was examined. Insulin rapidly increased the level of SHARP-1 mRNA both in vivo and in vitro. Then, signaling pathways involved with the increase of SHARP-1 mRNA by insulin were determined in H4IIE rat hepatoma cells. Pretreatments with LY294002, wortmannin, and staurosporine completely blocked the induction effect, suggesting the involvement of both phosphoinositide 3-kinase (PI 3-K) and protein kinase C (PKC) pathways. In fact, overexpression of a dominant negative form of atypical protein kinase C lambda (aPKCλ) significantly decreased the induction of the SHARP-1 mRNA. In addition, inhibitors for the small GTPase Rac or Jun N-terminal kinase (JNK) also blocked the induction of SHARP-1 mRNA by insulin. Overexpression of a dominant negative form of Rac1 prevented the activation by insulin. Furthermore, actinomycin D and cycloheximide completely blocked the induction of SHARP-1 mRNA by insulin. Finally, when a SHARP-1 expression plasmid was transiently transfected with various reporter plasmids into H4IIE cells, the promoter activity of PEPCK reporter plasmid was specifically decreased. Thus, we conclude that insulin induces the SHARP-1 gene expression at the transcription level via a both PI 3-K/aPKCλ/JNK- and a PI 3-K/Rac/JNK-signaling pathway; protein synthesis is required for this induction; and that SHARP-1 is a potential repressor of the PEPCK gene expression.
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Mitani A, Takasu H, Horibe T, Furuta H, Nagasaka T, Aino M, Fukuda M, Fujimura T, Mogi M, Noguchi T. Five-year clinical results for treatment of intrabony defects with EMD, guided tissue regeneration and open-flap debridement: a case series. J Periodontal Res 2014; 50:123-30. [DOI: 10.1111/jre.12188] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2014] [Indexed: 11/28/2022]
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Okada N, Sasaguri K, Otsuka T, Fujita A, Ito H, Noguchi T, Jinbu Y, Kusama M. Effect of articulatory rehabilitation after oral cancer surgery on higher brain activation. Int J Oral Maxillofac Surg 2014; 43:933-40. [PMID: 24679850 DOI: 10.1016/j.ijom.2014.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 02/22/2014] [Accepted: 02/25/2014] [Indexed: 11/17/2022]
Abstract
The present study aimed to verify the importance of postoperative articulatory rehabilitation in patients with oral cancer and to clarify the neurological changes underlying articulatory functional recovery. A longitudinal assessment of oral function and accompanying brain activity was performed using non-invasive functional magnetic resonance imaging (fMRI). We assessed 13 patients with cancers of the tongue and oral floor before and after ablative surgery. Articulatory function was assessed preoperatively and postoperatively using a conversation intelligibility test and the Assessment of Motor Speech for Dysarthria test. Patients also performed a verbal task during fMRI scans. The assessments were then repeated after the patients had undergone 4-6 months of articulatory rehabilitation therapy. Compared to pretreatment levels, articulatory rehabilitation resulted in a significant increase in activation in the supplementary motor cortex, thalamus, and cingulate cortex. The present study offers a quantitative assessment of the effects of speech rehabilitation by investigating changes in brain activation sites.
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Ishii K, Kurasawa K, Tanabe S, Noguchi T. Complementary cooperation of an ambulance helicopter and car with medical doctors: meaning of simultaneous dispatch. Crit Care 2014. [PMCID: PMC4068871 DOI: 10.1186/cc13260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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93
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Ando I, Ogura N, Toyonaga Y, Hirahara K, Shibata T, Noguchi T. JTK-853, a novel non-nucleoside hepatitis C virus polymerase inhibitor, demonstrates a high genetic barrier to resistance in vitro. Intervirology 2013; 56:302-9. [PMID: 24008863 DOI: 10.1159/000351141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Accepted: 04/04/2013] [Indexed: 11/19/2022] Open
Abstract
JTK-853 is a novel, non-nucleoside, palm site-binding hepatitis C virus (HCV) polymerase inhibitor that has demonstrated antiviral activity in HCV-infected patients during 3 days of treatment. To estimate the genetic barrier of JTK-853 to resistance in vitro, colony formation assays were conducted using HCV replicon cells (genotypes 1a and 1b). The colony formation assays revealed that the numbers of resistant colonies for JTK-853 were much lower than those for other direct-acting antivirals, including palm site- or thumb pocket-binding non-nucleoside HCV polymerase inhibitors (NNIs), an NS5A inhibitor (NS5Ai), and a protease inhibitor (PI). Furthermore, the numbers of resistant colonies for JTK-853 in combination with the NS5Ai or PI were lower than those for other combinations of NS5Ai + NNI, and NS5Ai + PI. Our findings demonstrate that JTK-853 has a high genetic barrier to resistance, and suggest that its combination therapies will be potent in suppressing the emergence of drug resistance in HCV-infected patients.
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Noguchi T, Kawasaki T, Tanaka A, Goto Y, Koga N, Ishihara M, Yasuda S, Ogawa H. A prospective natural-history study of coronary hyper-intense plaques detected by non-contrast T1-weighted magnetic resonance imaging. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.3800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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95
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Arakawa T, Noguchi T, Fujiwara R, Miyamoto Y, Higashi M, Goto Y, Ishihara M, Yasuda S, Ogawa H, Naito H. An innovative multi-detector computed tomography image-processing method for quantitative coronary artery analysis: the NCVC system. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p2931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Matsumoto M, Yasuda S, Kotani J, Sakamoto H, Noguchi T, Anzai T, Ishihara M, Nakatani T, Kobayashi J, Ogawa H. Acute survival and long-term prognosis of adults patients with fulminant myocarditis who were supported by percutaneous extracorporeal membrane oxygenation. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.3509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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97
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Nagai T, Anzai T, Yokoyama H, Sugano Y, Sakamoto H, Noguchi T, Ishihara M, Shimizu W, Yasuda S, Ogawa H. Impact of left ventricular systolic diameter on the in-hospital improvement of systolic function in acute decompensated heart failure with high blood pressure presentation. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.1724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Miyagi T, Sakamoto H, Noguchi T, Fujita T, Anzai T, Shimizu W, Ishihara M, Kobayashi J, Ogawa H, Yasuda S. Vein graft vs. native coronary artery as the optimal target of percutaneous coronary intervention in patients with previous coronary artery bypass graft surgery. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p2199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Fujiwara R, Noguchi T, Nonogi H, Kumasaka R, Arakawa T, Nakanishi M, Goto Y, Ishihara M, Yasuda S, Ogawa H. Are they really not guilty who present to the emergency department with acute chest pain, no obstructive coronary artery disease by CT angiography? Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p4708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ioka Y, Ushijima K, Ioka T, Noguchi T, Imbu Y, Kusama M, Fujimura A. PP015—Chronotherapy with docetaxel, cisplatin, and 5-fluorouracil (5-FU) in patients with oral squamous cell carcinoma. Clin Ther 2013. [DOI: 10.1016/j.clinthera.2013.07.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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