60 research outputs found

    Enucleation assisted with filler for open-globe injury

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    In cases of severe open-globe injury, it is often difficult to reconstruct the globe and maintain visual acuity. Ocular globe enucleation may decrease the risk of sympathetic ophthalmia in the fellow eye. However, the surgical procedure is difficult to perform with an open globe, because the injured globe is inclined to collapse. We report the case of an enucleation for an open-globe injury in which we used alginate, which is often used for dental impressions, as filler for the collapsed globe. We were able to maintain the resistance of the globe sufficiently well enough to perform the procedure easily and without complication. Thus, alginate may be a novel aid to assist in enucleation by preserving globe resistance

    Allergic Potency of Japanese Cedar Pollen Cry j 1 Is Reduced by a Low Concentration of Hypochlorous Acid Generated by Electolysis

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    ABSTRACTBackgroundAlthough Japanese cedar (Cryptomeria japonica) pollinosis has developed into a health problem, few methods eradicate indoor allergens completely. In a recent study, however, the effectiveness of inactivation with sodium hypochlorite (NaOCl) treatment was revealed. Therefore, the present study aimed to elucidate the ability of chlorine bleach (NaOCl) to reduce the immunogenicity of the major allergenic protein of Japanese cedar (Cry j 1).MethodsSodium dodecyl sulfate polyacrylamide gel electrophoresis, Western blotting, enzyme-linked immunosorbant assay, and skin testing were carried out in 7 individuals.ResultsThe allergenic protein was undetectable using sodium dodecyl sulfate polyacrylamide gel electrophoresis and silver staining at a sodium hypochlorite/allergenic protein molar ratio of 457. Western blotting with human sera showed the same dose-dependent efficacy. The immunogenicity of the purified protein and cedar pollen was also demonstrated on enzyme-linked immunosorbant assay to be reduced by sodium hypochlorite treatment in a dose- and time-dependent manner. Moreover, sodium hypochlorite-treatment inhibited the skin test response to the protein in all 7 individuals.ConclusionsHypochlorous acid generated by electrolysis is an effective method for significantly reducing the immunogenicity of Cry j 1

    Fulfillment of the premenstrual dysphoric disorder criteria confirmed using a self-rating questionnaire among Japanese women with depressive disorders

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    <p>Abstract</p> <p>Background</p> <p>Some women with depressive disorders experience severe premenstrual symptoms. However, there have been few studies in which premenstrual symptoms in women suffering from depressive disorders were assessed. In this study, we aimed to investigate premenstrual symptoms in women with depressive disorders using the premenstrual dysphoric disorder (PMDD) scale.</p> <p>Methods</p> <p>We administered questionnaires to 65 Japanese female outpatients who had been diagnosed with a major depressive disorder or dysthymic disorder and to 303 healthy women as control subjects. The questionnaire consisted of items on demographics and the PMDD scale, which was modified from the premenstrual symptoms screening tool (PSST) developed by Steiner et al. (<it>Arch Womens Ment Health </it>2003, <b>6</b>:203-209).</p> <p>Results</p> <p>Twenty-eight women (43.1%) with depressive disorder fulfilled certain items of the PMDD scale. These women are considered to have coexisting PMDD and a depressive disorder, or to have premenstrual exacerbation (PME) of a depressive disorder. On the other hand, 18 women (5.9%) in the control group were diagnosed as having PMDD. The depressive disorder group who fulfilled the PMDD criteria had more knowledge of the term premenstrual syndrome (PMS) and took more actions to attenuate premenstrual symptoms than the control group with PMDD.</p> <p>Conclusions</p> <p>Our findings demonstrated that the occurrence of severe premenstrual symptoms is much higher in women with depressive disorders than in healthy subjects. This is partially due to this group containing women with PME, but mainly due to it containing women with PMDD. The higher percentage of PMDD suggests similarity between PMDD and other depressive disorders. Furthermore, educating healthy Japanese women and women with depressive disorders about premenstrual symptoms and evidence-based treatment for them is necessary.</p

    Imaging analysis reveals mechanistic differences between first- and second-phase insulin exocytosis

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    The mechanism of glucose-induced biphasic insulin release is unknown. We used total internal reflection fluorescence (TIRF) imaging analysis to reveal the process of first- and second-phase insulin exocytosis in pancreatic β cells. This analysis showed that previously docked insulin granules fused at the site of syntaxin (Synt)1A clusters during the first phase; however, the newcomers fused during the second phase external to the Synt1A clusters. To reveal the function of Synt1A in phasic insulin exocytosis, we generated Synt1A-knockout (Synt1A−/−) mice. Synt1A−/− β cells showed fewer previously docked granules with no fusion during the first phase; second-phase fusion from newcomers was preserved. Rescue experiments restoring Synt1A expression demonstrated restoration of granule docking status and fusion events. Inhibition of other syntaxins, Synt3 and Synt4, did not affect second-phase insulin exocytosis. We conclude that the first phase is Synt1A dependent but the second phase is not. This indicates that the two phases of insulin exocytosis differ spatially and mechanistically

    Deletion of CDKAL1 Affects Mitochondrial ATP Generation and First-Phase Insulin Exocytosis

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    A variant of the CDKAL1 gene was reported to be associated with type 2 diabetes and reduced insulin release in humans; however, the role of CDKAL1 in β cells is largely unknown. Therefore, to determine the role of CDKAL1 in insulin release from β cells, we studied insulin release profiles in CDKAL1 gene knockout (CDKAL1 KO) mice.Total internal reflection fluorescence imaging of CDKAL1 KO β cells showed that the number of fusion events during first-phase insulin release was reduced. However, there was no significant difference in the number of fusion events during second-phase release or high K(+)-induced release between WT and KO cells. CDKAL1 deletion resulted in a delayed and slow increase in cytosolic free Ca(2+) concentration during high glucose stimulation. Patch-clamp experiments revealed that the responsiveness of ATP-sensitive K(+) (K(ATP)) channels to glucose was blunted in KO cells. In addition, glucose-induced ATP generation was impaired. Although CDKAL1 is homologous to cyclin-dependent kinase 5 (CDK5) regulatory subunit-associated protein 1, there was no difference in the kinase activity of CDK5 between WT and CDKAL1 KO islets.We provide the first report describing the function of CDKAL1 in β cells. Our results indicate that CDKAL1 controls first-phase insulin exocytosis in β cells by facilitating ATP generation, K(ATP) channel responsiveness and the subsequent activity of Ca(2+) channels through pathways other than CDK5-mediated regulation

    アタラシイ ニホンゴ ノウリョク シケン ノ タメノ ゴイ ヒョウ サクセイ ニ ムケテ

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    日本語能力試験の実施機関である国際交流基金と日本国際教育支援協会は「日本語能力試験の改善に関する検討会」を2005年に発足させたが、2009年からの新試験開始を目指して各分科会は日々調査研究を重ねている。本稿は、分科会の一つである出題基準分科会漢字表・語彙表部会が行っている語彙表作成作業の2007年9月現在の中間報告である。 部会の活動は、この2年間で4つの段階を経た。作成方針と選別方針を決定し、データベースに関する調査および整備をする第一段階、語彙の選別をする第二段階、語彙の再選別及び記述方法の検討をする第三段階、語彙の再選別と初出級の検討をする第四段階である。実際にどのようなデータベースを使い、どのような検討を重ね、どのような選別作業をしたのか。本稿ではそれぞれの段階ごとに具体的な例を挙げながら報告をする。また、それとともに今後考えていかなければならない課題についても言及する。The Japan Foundation and Japan Educational Exchanges and Services inaugurated an "Examination Committee on Improving Japanese Language Proficiency Test" in 2005, and have been conducting research on the New Test to be incorporated in 2009. There are various revisions to be made. This is an interim report as of September 2007, on the working of vocabulary list which has been made by the kanji and vocabulary list subdivision of the Test Content Specifications division. The activities of the subdivision have been divided into four stages during these two years. The first stage is for decisions on the policy for composition and selection, and research on the database. The second stage is for the selection of vocabulary. The third stage is for discussion on the re-selection and description of vocabulary. The forth stage is for re-selection of vocabulary and for each level to be decided

    Mating behavior and genital damage during copulation in the leaf beetle Lema coronata (Chrysomelidae: Criocerinae)

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    The criocerine leaf beetle Lema coronata Baly has extremely long genitalia that reach more than twice the body length in both sexes. We observed mating behavior of this species in the laboratory and inspected the male genital morphology using a scanning electron microscope. The males did not perform pre-copulatory courtship and post-copulatory guarding of the mates, and copulation lasted only for about 30 min. The surface of male genitalia is smooth without any special structures at the tip. A fragment of broken male genitalia was detected in the spermathecal duct of one female. We discuss the adaptive significance of male genital damage and the selective factor of elongated genitalia

    A Study on Ensuring Special Needs Education in Elementary and Junior High Schools by University Students' Voluntary Activities and Partnerships

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    広島大学大学院教育学研究科附属障害児教育実践センターでは、大学の地域貢献の一環として、人的資源の育成・供給、つまり、「大学における実践力のある人材の養成」や「教育現場への即戦力となる人材の派遣」を目的とした「特別支援教育学生サポーター派遣事業(旧特別支援教育学生ボランティア派遣活動:2006年度から名称改定)」を実施している。本論では、特別支援教育を円滑に展開していくための、大学生を活用した非専門家と小・中学校との連携例として、広島大学が取り組む「特別支援教育学生サポーター派遣事業」の内容について紹介するとともに、アンケート調査結果の分析に基づき、小・中学校と非専門家との理想的な連携の在り方について考えることを目的とする
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