60 research outputs found

    Significance of measurement of tumor marker in primary breast cancer

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    We investigated a prognosis in the presence or absence of preoperative marker abnormality for 371 cases with primary breast cancer that we experienced in our department this time. 60 (16%) of 371 cases showed the abnormality of the tumor marker and 25 (41.7%) of 60 patients had a recurrence. The positive rate of the marker was 8.1% in CA 15 3, 6.7% in CEA, 4.1% in NCC ST 439, and each rate of recurrence was 56.7%, 48.0%, 33.3%. Rate of recurrence in the negative cases was 12.7%, 13.9, 15.0% respectively and recognized a significant difference statistically (p <0.001) . Of 11 cases (3.8%) shown CA 15 3 abnormal high level, 3 cases (27.2%) had recurrence when we examined in 0 3 metastases to lymph nodes according to markers. 281 cases (96.2%) was normal range in CA15 3. Only 15 cases (5%) had recurrence. It showed a significant difference statistically (p <0.05) . For the cases shown abnormality of the preoperative CA 15 3, careful serial observations are necessary

    Real-time monitoring of functional interactions between upstream and core promoter sequences in living cells of sea urchin embryos

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    There are some functional compatibilities between upstream and core promoter sequences for transcriptional activation in yeast, Drosophila and mammalian cells. Here we examined whether similar compatibilities exist in sea urchin embryos, and if so, whether they are dynamically regulated during early development. Two reporter plasmids, each containing a test promoter conjugated to either CFP or YFP, were concurrently introduced into embryos, and their expression patterns were studied by fluorescence microscopy. The upstream sequence of the Hemicentrotus pulcherrimus (Hp) OtxE promoter drives the expression of its own core promoter and that of Strongylocentrotus purpuratus (Sp) Spec2a in different embryonic regions, especially at the late gastrula stage. Interestingly, when the four putative transcription factor binding sites of this upstream sequence were individually mutated, the resulting sequences directed different spatiotemporal expression from the same set of two core promoters, indicating that combinations of upstream factors may determine core promoter usage in sea urchin embryos. In addition, the insertion or deletion of consensus or nonconsensus TATA sequences changed the expression profile significantly, irrespective of whether the upstream sequence was intact or mutated. Thus, the TATA sequence may serve as a primary determinant for core promoter selection in these cells

    Endogenous CGRP protects against neointimal hyperplasia following wire-induced vascular injury

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    信州大学博士(医学)・学位論文・平成25年3月31日授与(甲第942号)・楊 磊Neointimal hyperplasia is the primary lesion underlying atherosclerosis and restenosis after percutaneous coronary intervention. Calcitonin gene-related peptide (CGRP) is produced by alternative splicing of the primary transcript of the calcitonin/CGRP gene. Originally identified as a strongly vasodilatory neuropeptide, CGRP is now known to be a pleiotropic peptide widely distributed in various organs and tissues. Our aim was to investigate the possibility that CGRP acts as an endogenous vasoprotective molecule. We compared the effect of CGRP deficiency on neointimal formation after wire-induced vascular injury in wild-type and CGRP knockout (CGRP-/-) mice. We found that neointimal formation after vascular injury was markedly enhanced in CGRP-/- mice, which also showed a higher degree of oxidative stress, as indicated by reduced expression of nitric oxide synthase, increased expression of p47phox, and elevated levels of 4HNE, as well as greater infiltration of macrophages. In addition, CGRP-deficiency led to increased vascular smooth muscle cell (VSMC) proliferation within the neointima. By contrast, bone marrow-derived cells had little or no effect on neointimal formation in CGRP-/- mice. In vitro analysis showed that CGRP-treatment suppressed VSMC proliferation, migration, and ERK1/2 activity. These results clearly demonstrate that endogenous CGRP suppresses the oxidative stress and VSMC proliferation induced by vascular injury. As a vasoprotective molecule, CGRP could be an important therapeutic target in cardiovascular disease. (C) 2013 Elsevier Ltd. All rights reserved.ArticleJOURNAL OF MOLECULAR AND CELLULAR CARDIOLOGY. 59(0):55-66 (2013)journal articl

    A study of Kariya Ekisai\u27s annotation on Lunheng

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    Material point method (MPM) is a mesh based particle method which is suitable to simulate applications with large deformations. MPM adopts two discretisations, one is the space discretisation where the equation of motion is solved, and the other is the material discretisation where the continuum is replaced by material points or particles. Particles are allowed to move through the background computational mesh,which allows MPM to simulate large displacements and deformations of the material[9].The effect of the spatial discretisationon the simulation results have been studied by otherse.g. [1]considering a specific applicationlike bending of a cantilevered beam. More generally, the sensitivity of the MPM solution to the two discretisations specially when dealing with bench mark problems in the field of geotechnical engineering has not been considered so far,althoughthe methodis applied widelyin this area e.g. [2,13].In this paper, the well-known problemin the field of geotechnical engineering isanalyzed using MPM. In the case of available reference solutions the results are then evaluated. The effects of the two MPM discretisations on the quality of the final results have been investigated where some concluding remarks are presented
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