282 research outputs found

    Study of interleukin-6 in the spread of colorectal cancer: the diagnostic significance of IL-6.

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    We investigated the diagnostic significance of IL-6 for lymph node metastasis and/or hepatic metastasis from colorectal cancer in 65 patients and evaluated the contributions of 8 factors (IL-6, HGF, IL-1beta, TNF-alpha, TGF-beta1, ELAM-1, ICAM-1, VCAM-1) toward Dukes.s classification of 53 patients. We also examined IL-6 expression in tumor tissue. From the receiver operating characteristic (ROC) curve analysis, an optimal cutoff value of 5.8 pg/ml was determined to classify lymph node and/or hepatic metastasis, and that of 6.3 pg/ml was determined to classify hepatic metastasis. These values indicated sensitivities of 55.0% and 71.4%, and specifi cities of 100% and 88.6%, respectively. IL-6, HGF, and ELAM-1 were very useful for distinguishing among Dukes.s A/B group, C group, and D group. In all cases with high IL-6 values (more than 25.0 pg/ml), immunohistochemical staining was positive for IL-6 in the cytoplasm of cancer cells. IL-6 is strongly suspected to be involved in lymph node and/or hepatic metastasis by promoting it through HGF, and serum IL-6 value (pg/ml) would be useful diagnostically to estimate whether or not there is a high risk of lymph node and/or hepatic metastasis

    モンゴル ニ オケル ケイザイ タイセイ ト ギンコウ セイド ニ ツイテ

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    本論は、モンゴルにおける銀行業務のリスクに関する問題点を検出すること、および銀行システムをめぐるいくつかの重要な問題を解決することを目的にしている。とはいえ、本論では、銀行業務のリスクだけに主眼をおくのではなく、最初にモンゴル経済に関して概略を描くことを試みている。 まず第1章では、モンゴルの経済制度について紹介する。そして、第2章では、モンゴルにおける銀行制度に関する主要な研究の背景を検証した。これと関連して、銀行業務のリスクに関わる問題は、銀行システムと現実の問題の状況と、さらには今後において解決されるべき諸問題を必然的に生起させる。モンゴルでは、これまで「中央銀行と国立銀行」とからなる銀行システムは、中央銀行と商業銀行、ノンバンク的な金融組織と貯金を含む複数のタイプからなる、以前とは全く異なったシステムや信用組合などへと移行してきた。したがって、銀行業務管理に関しての重要な問題とその最適解を求めるための法規制の問題は、この研究を通して、一つずつ明らかにしていく。This paper is aimed to the resolving of some vital questions of the banking system, among it, to the doing of research and analysis in banking risks. However, we did not emphasize to begin the research with banking risks only, instead, we preferred to draw a brief outline of Mongolian economy first. We have done this study in the 1st chapter "The case of Mongolian Economic Systems". In the 2nd chapter, we reviewed the main research background with the topic "The case of Mongolian Banking Systems". In connection with this research, the issue of banking risks is inevitably raise in coherence with the current situation of banking system and the actual problems and questions to be settled in the further. In Mongolia, the banking system with a type of "Central and state banks" has been transferred into the rather reverse system with multiple types including central and commercial banks, non-banking financial organizations, and savings and credit unions. Traced from this research, the subsequent questions relative to the banking management and legislation seeking their optimal answers are getting appeared one after one

    Observation of salt effects on hydration water of lysozyme in aqueous solution using terahertz time-domain spectroscopy

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    Terahertz time-domain spectroscopy was used to investigate the salt effect of ammonium sulfate on the dynamics of hydration water of lysozyme in aqueous solution. The absorption coefficient of lysozyme aqueous solutions containing salt was subtracted by that of the water and ammonium sulfate contained in the lysozyme solution. The results revealed that ammonium sulfate increases the absorption coefficient of the hydration water, which indicates that the dynamics of the hydration water becomes faster and/or the number of hydration water molecules decreases with increasing ammonium sulfate concentration

    Identifying Suspicious Regions of Covid-19 by Abnormality-Sensitive Activation Mapping

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    This paper presents a fully-automated method for the identification of suspicious regions of a coronavirus disease (COVID-19) on chest CT volumes. One major role of chest CT scanning in COVID-19 diagnoses is identification of an inflammation particular to the disease. This task is generally performed by radiologists through an interpretation of the CT volumes, however, because of the heavy workload, an automatic analysis method using a computer is desired. Most computer-aided diagnosis studies have addressed only a portion of the elements necessary for the identification. In this work, we realize the identification method through a classification task by using a 2.5-dimensional CNN with three-dimensional attention mechanisms. We visualize the suspicious regions by applying a backpropagation based on positive gradients to attention-weighted features. We perform experiments on an in-house dataset and two public datasets to reveal the generalization ability of the proposed method. The proposed architecture achieved AUCs of over 0.900 for all the datasets, and mean sensitivity 0.853±0.0360.853 \pm 0.036 and specificity 0.870±0.0400.870 \pm 0.040. The method can also identify notable lesions pointed out in the radiology report as suspicious regions.Comment: 10 pages, 3 figure

    Granulocyte Colony-Stimulating Factor-Producing Gallbladder Cancer

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    We report a case of a granulocyte colony-stimulating factor (G-CSF)-producing gallbladder tumor associated with fever in a middle-aged female. Preoperative blood analysis showed leukocytosis with elevated levels of C-reactive protein and G-CSF. We resected the liver at S4a+S5, with regional lymph node dissection and partial resection of the duodenum. Histology revealed undifferentiated carcinoma with spindle and giant cells and papillary adenocarcinoma. Immunohistochemistry revealed Stage IIIB G-CSF-producing gallbladder cancer. Postoperatively, leukocyte and serum G-CSF levels decreased to within normal limits. Adjuvant gemcitabine chemotherapy was administered for 16 months, and she has been recurrence-free for 48 months

    Posttraumatic Cranial Cystic Fibrous Dysplasia

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    A 14-year-old was girl admitted to our hospital with a subcutaneous mass of the occipital head. The mass had grown for 6 years, after she had sustained a head injury at the age of 6, and was located directly under a previous wound. Skull X-ray Photograph (xp), computed tomography (CT), and magnetic resonance imaging (MRI) showed a bony defect and cystic changes in the skull corresponding to a subcutaneous mass. Bone scintigraphy revealed partial accumulation. The patient underwent total removal of the skull mass, and the diagnosis from the pathological findings of the cyst wall was fibrous dysplasia (FD). The radiographic findings for cystic cranial FD can be various. Progressive skull disease has been reported to be associated with head trauma, but the relationship between cranial FD and head trauma has not been previously reported. Previous studies have suggested that c-fos gene expression is a key mechanism in injury-induced FD

    Epigenetic biomarkers for prediction of sensitivity to chemotherapeutic drugs in multiple myeloma

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    Multiple myeloma continues to be a lethal malignancy despite the development of treatments such as high-dose chemotherapy combined with stem cell transplantation. Multiple myeloma arises through an accumulation of multiple genetic anges, including immunoglobulin gene rearrangements involved in Cyclin D. The main difficulties in multiple myeloma treatments are drug-resistance. DNA methylation of the5\u27 CpG islands of genes is often found in multiple myeloma. To screen for he genes involved in tumorigenesis of multiple myeloma, which are silenced by DNA methylation, we performed cDNA microarray analysis using multiple myeloma cell lines treated with demethylating agent5-aza-2-deoxycytidine (DAC), and entified RASD1, a dexamethasone (Dex)-inducible gene, as one of the targets of epigenetic changes. Inactivation of RASD1 was found to correlate with resistance to Dex, and treatment of multiple myeloma cells with DAC restored sensitivity to Dex. These findings suggest the involvement of epigenetic gene silencing in multiple myeloma progression and drug-resistance, and the usefulness of demethylation therapy for multiple myeloma treatment. Furthermore, DNA methylation can be an epigenetic biomarker for multiple myeloma

    Sphingosine 1-Phosphate (S1P) in the Peritoneal Fluid Skews M2 Macrophage and Contributes to the Development of Endometriosis

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    Sphingosine 1-phosphate (S1P), an inflammatory mediator, is abundantly contained in red blood cells and platelets. We hypothesized that the S1P concentration in the peritoneal cavity would increase especially during the menstrual phase due to the reflux of menstrual blood, and investigated the S1P concentration in the human peritoneal fluid (PF) from 14 non-endometriosis and 19 endometriosis patients. Although the relatively small number of samples requires caution in interpreting the results, S1P concentration in the PF during the menstrual phase was predominantly increased compared to the non-menstrual phase, regardless of the presence or absence of endometriosis. During the non-menstrual phase, patients with endometriosis showed a significant increase in S1P concentration compared to controls. In vitro experiments using human intra-peritoneal macrophages (MΦ) showed that S1P stimulation biased them toward an M2MΦ-dominant condition and increased the expression of IL-6 and COX-2. An in vivo study showed that administration of S1P increased the size of the endometriotic-like lesion in a mouse model of endometriosis

    Multicenter questionnaire survey for sporadic inclusion body myositis in Japan

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    Background: Sporadic inclusion body myositis (sIBM) is the most prevalent acquired muscle disease in the elderly. sIBM is an intractable and progressive disease of unknown cause and without effective treatment. The etiology of sIBM is still unknown; however, genetic factors, aging, lifestyles, and environmental factors may be involved. The purpose of this study is to elucidate the cross-sectional profile of patients affected by sIBM in Japan. Methods: We surveyed patient data for 146 cases diagnosed at a number of centers across Japan. We also issued a questionnaire for 67 patients and direct caregivers to further elucidate the natural history of the disease. Results: The mean age at the onset was 63.4 ± 9.2 years. The mean length of time from the onset to diagnosis was 55.52 ± 49.72 months, suggesting that there is a difficulty in diagnosing this disease with long-term consequences because of late treatment. 73 % described the psychological/mental aspect of the disease. The most popular primary caregiver was the patient’s spouse and 57 % patients mentioned that they were having problems managing the finances. Conclusions: Through these surveys, we described the cross-sectional profiles of sIBM in Japan. Many patients described psychological/mental and financial anxiety because of the aged profile of sIBM patients. The profiles of sIBM patients are similar to those in Western countries
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