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- 저자 : Tetsuya Ichikawa (검색결과 3 건)
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Suzuki Tetsuya,Tsuji Osahiko,Ichikawa Masahiko,Ishii Ryota,Nagoshi Narihito,Kawakami Michiyuki,Watanabe Kota,Matsumoto Morio,Tsuji Tetsuya,Fujiwara Toshiyuki,Nakamura Masaya 대한척추외과학회 2023 Asian Spine Journal Vol.17 No.2
Study Design: This is a single-center retrospective cohort study with a university hospital setting.Purpose: This study aims to evaluate the short-term course of physical function and walking ability after intramedullary spinal cord tumor (ISCT) resection and predict walking independence 1 year after surgery.Overview of Literature: Although several reports have shown the postoperative functional prognosis of spinal intramedullary tumors with long-term follow-up, no reports have identified the predictors associated with the functional outcome at an early stage. Methods: A total of 79 individuals who underwent ISCT resection at our institute between 2014 and 2019 were enrolled in the study, whose preoperative walking state was independent ambulator regardless of cane support with the Functional Independence Measure Locomotor Scale (FIM-L) score of ≥6. The FIM-L, the American Spinal Injury Association (ASIA) motor and sensory scores in the lower extremities, and the Walking Index for Spinal Cord Injury II (WISCI II) were assessed for walking independence, lower-limb function, and walking ability, respectively. These evaluations were performed at 4 time points: preoperatively, 1 week (1W), 2 weeks (2W), and 1 year after surgery.Results: In the early phase after surgery, 71% and 43% of the participants were nonindependent ambulators at 1W and 2W, respectively. Histopathology indicated that patients with solid tumors (ependymoma, astrocytoma, or lipoma) showed significantly lower indices at 1W and 2W than those with vascular tumors (hemangioblastoma or cavernous hemangioma). Regarding tumor location, thoracic cases exhibited poorer lower-limb function at 1W and 2W and poorer walking ability at 2W than cervical cases. According to the receiver operating characteristic (ROC) analysis, 2 WISCI II points at 2W had the highest sensitivity (100%) and specificity (92.2%) in predicting the level of walking independence at 1 year postoperatively (the area under the ROC curve was 0.99 (95% confidence interval, 0.93–1.00).Conclusions: The higher the lower-limb function scores in the early phase, the better the improvement in walking ability is predicted 1 year after ISCT resection.
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Inhibition of plasminogen activator inhibitor-1 attenuates against intestinal fibrosis in mice
( Jin Imai ),( Takashi Yahata ),( Hitoshi Ichikawa ),( Abd Aziz Ibrahim ),( Masaki Yazawa ),( Hideaki Sumiyoshi ),( Yutaka Inagaki ),( Masashi Matsushima ),( Takayoshi Suzuki ),( Tetsuya Mine ),( Kiyo 대한장연구학회 2020 Intestinal Research Vol.18 No.2
Background/Aims: Intestinal fibrosis is a major complication of Crohn’s disease (CD). The profibrotic protein transforming growth factor-β (TGF-β) has been considered to be critical for the induction of the fibrotic program. TGF-β has the ability to induce not only the expression of extracellular matrix (ECM) including collagen, but also the production of plasminogen ac tivator inhibitor-1 (PAI-1) that prevents enzymatic degradation of the ECM during the onset of fibrotic diseases. However, the significance of PAI-1 in the developing intestinal fibrosis has not been fully understood. In the present study, we examined the actual expression of PAI-1 in fibrotic legion of intestinal inflammation and its correlation with the abnormal ECM deposition. Methods: Chronic intestinal inflammation was induced in BALB/c mice using 8 repeated intrarectal injections of 2,4,6-trini trobenzene sulfonic acid (TNBS). TM5275, a PAI-1 inhibitor, was orally administered as a carboxymethyl cellulose suspension each day for 2 weeks after the sixth TNBS injection. Results: Using a publicly available dataset (accession number, GSE75214) and TNBS-treated mice, we observed increases in PAI-1 transcripts at active fibrotic lesions in both patients with CD and mice with chronic intestinal inflammation. Oral administration of TM5275 immediately after the onset of intestinal fibrosis upregu lated MMP-9 (matrix metalloproteinase 9) and decreased collagen accumulation, resulting in attenuation of the fibrogenesis in TNBS-treated mice. Conclusions: PAI-1-mediated fibrinolytic system facilitates collagen degradation suppression. Hence, PAI-1 inhibitor could be applied as an anti-fibrotic drug in CD treatment. (Intest Res 2020;18:219-228)
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Akinori Ono,Masaki Aiba,Koshi Takeda,Hanako Hokari,Tetsuya Ichikawa 글로벌지식마케팅경영학회 2018 Global Marketing Conference Vol.2018 No.07
Consumers tend to anthropomorphize brands and treat products under the anthropomorphized brands as if they were human beings. Previous research has pointed out that there could be two kinds of anthropomorphized brands, i.e., servant and partner brands and claimed that typical consumers (non-materialists) prefer brands-as-partner, whereas materialists prefer brands-as-servant. However, there is room for improvement: (1) Previous studies have examined only brands-as-servant and brands-as-partner and brands-as-master have been ignored; and (2) they have regarded materialists as a unidimensional construct, though it can be divided into instrumental and terminal materialists. Thus, we conducted multiple comparison tests among the three kinds of anthropomorphized brands with a dataset of three kinds of consumers. The results showed that non-materialists, instrumental materialists, and terminal materialists prefer, brands-as-partner, brands-as-servant, and brands-as-master, respectively.
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