74 research outputs found

    Goal setting and learners’ motivation for extensive reading: Forming a virtuous cycle

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    This study applied a qualitative approach and investigated the processes of motivational change through goal setting in extensive reading (ER). The one-year ER program integrating goal setting was introduced in a Japanese university. Interviews were conducted with four selected participants from among 23 students. The results revealed different patterns in students’ motivational change associated with goal setting. When students used goal setting effectively, they felt a sense of achievement, enhanced their intrinsic motivation and self-efficacy, and formed a virtuous cycle toward new goals. On the other hand, when students were unable to use goal setting effectively, they repeatedly failed to achieve goals and seemed less motivated to read. This paper discusses ways to set appropriate goals for increasing reading motivation

    NCR+ ILC3 maintain larger STAT4 reservoir via T-BET to regulate type 1 features upon IL-23 stimulation in mice

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    Innate lymphoid cells (ILCs) producing IL-22 and/or IL-17, designated as ILC3, comprise a heterogeneous subset of cells involved in regulation of gut barrier homeostasis and inflammation. Exogenous environmental cues in conjunction with regulated expression of endogenous factors are key determinants of plasticity of ILC3 towards the type 1 fate. Herein, by using mouse models and transcriptomic approaches, we defined at the molecular level, initial events driving ILC3 expressing natural cytotoxicity receptors (NCR+ ILC3) to acquire type 1 features. We observed that NCR+ ILC3 exhibited high basal expression of the signal-dependent transcription factor STAT4 due to T-BET, leading to predisposed potential for the type 1 response. We found that the prototypical inducer of type 3 response, IL-23, played a predominant role over IL-12 by accessing STAT4 and preferentially inducing its phosphorylation in ILC3 expressing T-BET. The early effector program driven by IL-23 was characterized by the expression of IL-22, followed by a production of IFN-γ, which relies on STAT4, T-BET and required chromatin remodeling of the Ifng locus. Altogether, our findings shed light on a feed-forward mechanism involving STAT4 and T-BET that modulates the outcome of IL-23 signaling in ILC3. This article is protected by copyright. All rights reserved

    Developmental Acquisition of Regulomes Underlies Innate Lymphoid Cell Functionality

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    Innate lymphoid cells (ILCs) play key roles in host defense, barrier integrity, and homeostasis and mirror adaptive CD4(+) T helper (Th) cell subtypes in both usage of effector molecules and transcription factors. To better understand the relationship between ILC subsets and their Th cell counterparts, we measured genome-wide chromatin accessibility. We find that chromatin in proximity to effector genes is selectively accessible in ILCs prior to high-level transcription upon activation. Accessibility of these regions is acquired in a stepwise manner during development and changes little after in vitro or in vivo activation. Conversely, dramatic chromatin remodeling occurs in naive CD4(+) T cells during Th cell differentiation using a type-2-infection model. This alteration results in a substantial convergence of Th2 cells toward ILC2 regulomes. Our data indicate extensive sharing of regulatory circuitry across the innate and adaptive compartments of the immune system, in spite of their divergent developing pathways

    Role of the expression of collagen prolyl-4-hydroxylase α subunits 1 and 2 in the development and prognosis of breast cancer

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     Background: The expression of prolyl-4-hydroxylase (P4H), an enzyme involved in collagen biosynthesis, is significantly upregulated during breast cancer development and progression. However, the molecular mechanisms by which P4H expression in cancer cells induces progression have not been elucidated. Thus, we aimed to determine the significance of the expression of isoforms 1 and 2 of P4H in breast cancer. Methods: We performed immunohistochemical analysis for P4HA1 and P4HA2 on the tumor samples obtained from 182 patients with breast cancer and examined the correlation between clinicopathological factors and markers related to epithelial-mesenchymal transition and ischemia. Protein expression levels were investigated using western blotting. In addition, breast cancer cell cultures were used to characterize the expression. Results: Expression of both P4HA1 and P4HA2 was upregulated in cancer cells compared with that in normal mammary glands; the high-P4H expression group tended to have a poorer prognosis than the low-P4H expression group. In particular, P4HA2 was strongly associated with tumor grade; P4HA2 expression showed a weak negative correlation with HIF-2α expression. In cultured breast cancer cells, the immunohistological expression of P4H and HIF increased tovarious degrees under hypoxia, while P4H protein levels increased in a time-dependent manner.  Conclusion: P4HA2 can be used as a marker of breast cancer grade and a prognostic factor. Differential expression of P4HA1 and P4HA2 was observed in an ischemic environment,suggesting that each may be affected by the type of collagen involved

    Compartment Syndrome after Prostatectomy

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    Robot-assisted laparoscopic prostatectomy (RALP) for prostate cancer was introduced in 2000 and rapidly gained popularity. The Da Vinci Surgical System® can ensure improved local control of cancer and fewer perioperative complications. However, RALP is performed in the steep-Trendelenburg position (a combination of lithotomy and head-down tilt position / Lloyd-Davies position) to obtain a good surgical view, and as a result, well leg compartment syndrome (WLCS) can become a serious complication of RALP. Here, we report a case of WLCS after RALP. A 75-year-old man underwent surgery for prostate cancer and immediately complained of pain and numbness after surgery. The pressure of the four leg compartments increased. Ultimately, we diagnosed the patient with WLCS in his right leg, and an emergency fasciotomy was performed. He completely recovered with no permanent disability and was discharged one month after rehabilitation. Although WLCS after RALP is a rare and severe complication, the patient recovered completely with early diagnosis and intervention. Measuring the compartment pressure is useful when the patient is drowsy immediately after recovery from anesthesia. Preventing WLCS requires identifying this condition as a potential complication of RALP and all urologic surgeries performed in the lithotomy position

    Primary leiomyoma of the bladder

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    The case presented is of a 47-year-old patient with an extravesical pedunculated bladder leiomyoma, which was difficult to distinguish from a retroperitoneal tumor. Preoperatively, it was suspected to be a retroperitoneal tumor and a laparotomy with tumor resection was performed. lntraoperatively, the bladder and tumor were connected by a cord-like tissue. A retrospective review of preoperative images revealed that cord-like tissue, identified intraoperatively, was also present. Bladder leiomyomas can grow as extravesical pedunculated tumors. Therefore, when the continuity between the bladder and tumor is only a cord-like object, the finding of continuity is useful to diagnose with bladder leiomyoma

    災害時のトリアージに関する医療系学生の意識調査

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    【目的】医療系学生の災害時トリアージに対する認識・理解度を調査し,正確な概念普及のための手がかりを得る.【方法】239名に対する全12問の無記名式アンケート調査.対象背景を考える上で「防災に関する政府世論調査」の一部質問を含む.【結果】1)世論調査との比較:各災害に「危険を感じる」は学生(84.5%)・世論調査(45.0%)(p<0.001)で学生の方がより敏感と思われたが,学生の方が「対策を話す機会も少ない(p<0.001)」,「災害ボランティアの経験もない」(p<0.001)と回答した.2)トリアージへの認識,理解度:96.7%がトリアージを「全く知らない」と回答,また46.6%が「トリアージには反対でない」とするも,身近な人が対象になると75.7%が「納得できない」と回答した.知識問題(2問)の正答率も23%,27%と低かった.【考察及び結論】「災害に敏感」な医療系学生でも「トリアージ」の認識・理解度は非常に低く,今後一般市民へ啓発と教育者養成が急務と思われる.PURPOSE : To evaluate the appreciation of triage at disaster in co-medical students. METHODS : An unsigned questionnaire survey was conducted on 239 students. This questionnaire consisted of 12 questions, along with same questions as "Public opinion survey about disaster prevention by the Cabinet Office" to examine the background of subjects. RESULTS : 1) The comparison between public opinion survey and questionnaire survey : The feeling of danger from any disasters was significantly more common in students (84.8%) than in respondents to public opinion survey (45.0%) (p<0.001). This result might indicate that students were more sensitive to danger from disasters, however, the incidence of students who had discussed counter-measures against disasters or who had worked as a volunteer at any disasters was significantly lower (both p<0.001) than that of respondents to public opinion survey. 2) Appreciation of triage at disaster in students : Of 239 students, 96.7% answered "I know nothing about triage". Although 46.6% of students were not opposed to the concept of triage in general, 75.7% of students were not in agreement with triage if it was applied to their familiar people. The incidence of students who gave correct answers to a couple of questions as to the proper knowledge of triage was very low (23% and 27%, respectively). CONCLUSION : Among co-medical students, who were considered to be sensitive to disasters, the level of appreciation of triage at disasters revealed much lower than expected. It is highly recommended that the concept of triage should be enlightened as a public campaign. Furthermore, it is urgent to secure practical instructors in triage. (257 words

    Associations of Nutrient Patterns with the Prevalence of Metabolic Syndrome : Results from the Baseline Data of the Japan Multi-Institutional Collaborative Cohort Study

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    The association between nutrient patterns and metabolic syndrome (MetS) has not been examined in a Japanese population. A cross-sectional study was performed on 30,108 participants (aged 35–69 years) in the baseline survey of the Japan Multi-Institutional Collaborative Cohort Study. Dietary intake was assessed using a 46-item food frequency questionnaire. MetS was diagnosed according to the Joint Interim Statement Criteria of 2009, using body mass index instead of waist circumference. Factor analysis was applied to energy-adjusted intake of 21 nutrients, and three nutrient patterns were extracted: Factor 1 (fiber, potassium and vitamins pattern); Factor 2 (fats and fat-soluble vitamins pattern); and Factor 3 (saturated fatty acids, calcium and vitamin B2 pattern). In multiple logistic regression analysis adjusted for sex, age, and other potential confounders, Factor 1 scores were associated with a significantly reduced odds ratio (OR) of MetS and all five components. Factor 2 scores were associated with significantly increased prevalence of MetS, obesity, and high blood pressure. Factor 3 scores were significantly associated with lower OR of MetS, high blood pressure, high serum triglycerides and low HDL cholesterol levels. Analysis of nutrient patterns may be useful to assess the overall quality of diet and its association with MetS

    Association of exposure level to passive smoking with hypertension among lifetime nonsmokers in Japan : a cross-sectional study

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    Brief exposure to passive smoking immediately elevates blood pressure. However, little is known about the association between exposure to passive smoking and chronic hypertension. We aimed to examine this association in a cross-sectional study, after controlling multiple potential confounders. Participants included 32,098 lifetime nonsmokers (7,216 men and 24,882 women) enrolled in the Japan Multi-Institutional Collaborative Cohort Study. Passive smoking was assessed using a self-administered questionnaire. The single question about exposure to passive smoking had five response options: “sometimes or almost never,” “almost every day, 2 hours/day or less,” “almost every day, 2 to 4 hours/day,” “almost every day, 4 to 6 hours/day,” and “almost every day, 6 hours/day or longer.” Hypertension was defined as any of the following: systolic blood pressure ≥140 mmHg, diastolic blood pressure ≥90 mmHg, or use of antihypertensive medication. Multivariate-adjusted odds ratio (OR) and 95% confidence interval (CI) for hypertension were estimated by exposure level to passive smoking using unconditional logistic regression models. The multivariate-adjusted OR for hypertension in those exposed almost every day was 1.11 (95% CI: 1.03–1.20) compared with those exposed sometimes or almost never. The OR for a 1-hour per day increase in exposure was 1.03 (95% CI: 1.01–1.06, P for trend = .006). This association was stronger in men than in women; the ORs were 1.08 (95% CI: 1.01–1.15, P for trend = .036) and 1.03 (95% CI: 1.00–1.05, P for trend = .055), respectively. Our findings suggest importance of tobacco smoke control for preventing hypertension
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