• 제목/요약/키워드: ST cell

검색결과 928건 처리시간 0.028초

소자약침(蘇子藥鍼)이 Type 1 Hypersensitivity에 미치는 영향 (ffect of Semen Perillae herbal acupuncture on the type 1 hypersensitivity)

  • 송세훈;송춘호
    • Korean Journal of Acupuncture
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    • 제25권1호
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    • pp.213-227
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    • 2008
  • Objectives : We studied on anti-allergic effects of Semen Perillae Herbal Acupuncture(SPHA) and Semen Perillae Herbal Acupuncture Solution(SP). Methods : In vivo, Animals were herbal-acupunctured SPHA at both ST36 three times for 5 days. Then, we investigated compound 48/80-induced active systemic anaphylaxis (ASA) using ICR mice and anti-DNP IgE-induced passive cutaneous anaphylaxis (PCA) using Sprague Dawley rat. In vitro, we measured cell viability, b-hexosaminidase release, IL-4 and TNF-a from RBL-2H3 cells after treatment of SP of various concentrations. Results : In vivo, SPHA pretreatments at both ST36 inhibited compound 48/80-induced ASA. PCA was inhibited by SPHA pretreatments at both ST36 and optional points. In vitro, SP treatments were not affect on cell viability and inhibited b-hexosaminidase release, IL-4 and TNF-a. Conclusions : These results suggest that SPHA and SP may be beneficial in the inhibition of allergic inflammatory response.

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Primary Perivascular Epithelioid Cell Tumor of the Lung: A Case Report

  • Hye Rim Na;Jong Hui Suh;Jiyun Lee
    • Journal of Chest Surgery
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    • 제56권5호
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    • pp.367-370
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    • 2023
  • Perivascular epithelioid cell tumors (PEComas) are very rare mesenchymal neoplasms, composed of histologically and immunohistochemically distinctive cells that form a sheet-like appearance around vessel lumens. Although most are benign, a malignant subset does exist, complicating clinical diagnostic efforts. Proper evaluation and management are thus essential for long-term patient survival. Herein, we present a rare case of a benign pulmonary PEComa that was diagnosed postoperatively in a 45-year-old woman.

Corticosteroid를 이용한 하악에 발현된 Langerhans Cell Histiocytosis의 치료 : 증례보고 (USE OF CORTICOSTEROIDS IN THE TREATMENT OF LOCALIZED LANGERHANS CELL HISTIOCYTOSIS OF THE MANDIBLE : CASE REPORT)

  • 최정용;이상화;윤현중
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제31권3호
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    • pp.249-253
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    • 2009
  • Langerhans cell histiocytosis(LCH), previously known as histiocytosis X, is rare, proliferative disorder in which the accumulation of pathologic Langerhans cell leads to tissue infiltration and destruction. The jaw is involved 10~20% of all LCH and most common oral symptoms are jaw swelling or a palpation mass. Most of subjects are males and disease appears to start before the age of 10 years. An 11 years old girl was referred from pediatric department. Histological examination confirmed the diagnosis LCH. She was treated intra-lesional injection of corticosteroid. The overall outcome was excellent. After a follow-up period of 20 month, the patient present with no evidence of residual disease on Panoramic view and whole body bone scan. We report this early recognized LCH case treated by corticoid injection in good progress with literature review.

Nonsyndromic Multiple Basal Cell Carcinomas

  • Kim, Dong Hwi;Ko, Hyo Sun;Jun, Young Joon
    • 대한두개안면성형외과학회지
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    • 제18권3호
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    • pp.191-196
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    • 2017
  • Basal cell carcinoma (BCC) comprising several lesions is not uncommon, but nonsyndromic multiple BCCs with parotid invasion are rare entities. We present two cases of multiple sporadic, nonsyndromic BCCs, and one of these cases is a unique case of parotid invasion associated purely with actinic keratosis. In Case 1, a 79-year-old female presented with multiple skin lesions on the face and left hand. All lesions were completely removed by surgery. The pathologic results showed lesions consistent with BCC and some lesions consistent with actinic keratosis. After 8 months, the patient presented with skin lesions in bilateral temporal areas and left cheek area. Surgical excision of the lesions was performed, and the biopsy results were squamous cell carcinoma in situ and actinic keratosis. In Case 2, a 43-year-old woman presented with multiple skin lesions on the face, scalp, right chest, abdomen and right leg. All lesions were completely removed by surgery. Pathologic evaluation confirmed the diagnosis of BCC. BCC is rarely metastatic, but it can lead to severe disfiguration or destruction. It is important to diagnose and treat BCC at an early stage.

인진청간탕가미방(茵陳淸肝湯加味方)이 간세포활성(肝細胞活性), 세포주기(細胞週期) 및 APOPTOSIS에 미치는 영향(影響) (The Effects of Injinchunggantang-derivative on Cell Viability, Cell Cycle Progression and Apoptosis of Hepatocytes)

  • 홍상훈;이장훈;우홍정
    • 대한한의학회지
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    • 제19권2호
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    • pp.337-372
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    • 1998
  • To evaluate the effects of Injinchunggantang-derivative on cell viability, cell cycle progression, and apoptosis, MTT assay, cell cycle analysis, Cpp32 protease assay, DNA fragnemtation assay, quantitative RT-PCR, and Western blotting were performed. The results were as followes. In MTT assay, etoposide+Injinchunggantang-derivative-treated cells as well as Injinchunggantang-derivative-treated cells showed higher viability than etoposide-treated cells with no time-concentration-dependence, which implied that Injinchunggantang-derivative has hepato-protective effect Cell cycle analysis showed that Injinchunggantang-derivative has no significant effect on the cell cycle. Cpp32 protease assav and DNA fragmentation assay Injinchunggantang-derivative carry inhibitory effects on apoptosis induction. It was suggested that Injinchunggantang-delivative might regulate the cell cycle, in particular $G_1$ checkpoint by blocking p53 and Watl pathway. Injinchunggantang-derivative inhibited the mRNA expressions of Cpp32, Fas, and Bcl-2, which could result in inhibition of apoptosis. These results imply that Injinchunggantang-derivative increases hepatocyte viability, and protects hepatocyte from damage by regulating the expression of genes associated with cell cycle and apoptosis, which explains the mechanism of the clinical effect of Injinchunggantang-derivative on liver diseases.

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The Potato Transcriptional Co-activator StMBF1 Is Up-regulated in Response to Oxidative Stress and Interacts with the TATA-box Binding Protein

  • Arce, Debora Pamela;Tonon, Claudia;Zanetti, Maria Eugenia;Godoy, Andrea Veronica;Hirose, Susumu;Casalongue, Claudia Anahi
    • BMB Reports
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    • 제39권4호
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    • pp.355-360
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    • 2006
  • To gain a better understanding on the function of the potato Solanum tuberosum Multiprotein Bridging Factor 1 protein (StMBF1) its interaction with the TATA box binding protein (TBP) was demonstrated. In addition we reported that StMBF1 rescues the yeast mbf1 mutant phenotype, indicating its role as a plant co-activator. These data reinforce the hypothesis that MBF1 function is also conserved among non closely related plant species. In addition, measurement of StMBF1 protein level by Western blot using anti-StMBF1 antibodies indicated that the protein level increased upon $H_2O_2$ and heat shock treatments. However, the potato $\beta$-1,3-glucanase protein level was not changed under the same experimental conditions. These data indicate that StMBF1 participates in the cell stress response against oxidative stress allowing us to suggest that MBF1 genes from different plant groups may share similar functions.

유기전해액 $LiMn_{2}O_{4}$/Lithium 전지의 전기화학적 특성 (Electrochemical Characteristics of $LiMn_{2}O_{4}$/Lithium Cells in Organic Electrolyte)

  • 임정환;도칠훈;문성인;윤문수
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2000년도 추계학술대회 논문집
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    • pp.371-374
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    • 2000
  • The electrochemical properties of LiM $n_2$ $O_4$as a cathode and an anode for the lithium secondary battery were evaluated. When LiM $n_2$ $O_4$ material was used as the cathode with the current collector of aluminum, the 1st specific capacity and the 1st Ah efficiency in LiM $n_2$ $O_4$/lithium cell were 123 mAh/g and 91.7%, respectively The anodic properties of LiM $n_2$ $O_4$ material was also evaluated in the LiM $n_2$ $O_4$/1ithium cell with the current collector of copper. It showed that the LiM $n_2$ $O_4$ was useful as the anode for the lithium secondary battery. During the 1st discharge, a potential plateau was observed at the potential of 0.3 $V_{Li}$ Li+/. The 1st specific charge capacity and the 1st specific discharge capacity were 790 mAh/s and 362 mAh/g, respectively. Therefore, the 1st Ah efficiency was 46%. The discharge capacity was gradually faded with the charge-discharge cycling to about 50th cycles. Thereafter, the discharge capacity was stabilized to about 110 mAh/g.

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Downregulation of the Expression of Steroidogenic Acute Regulatory Protein and Aromatase in Steroidogenic KGN Human Granulosa Cells after Exposure to Bisphenol A

  • Ji-Eun Park;Seung Gee Lee;Seung-Jin Lee;Wook-Joon Yu;Jong-Min Kim
    • 한국발생생물학회지:발생과생식
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    • 제27권4호
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    • pp.185-193
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    • 2023
  • Although increasing evidence of cause-and-effect relationship between BPA exposure and female reproductive disorders have been suggested through many studies, the precise biochemical and molecular mechanism(s) by which BPA interferes with steroidogenesis in the ovarian cells still remain unclear. Therefore, the purpose of this study was to discover the steroidogenic biomarker(s) associated with BPA treatment in human granulosa cell line, KGN. In this study, our results obtained via the analysis of steroidogenesis-related protein expression in KGN cells using quantitative polymerase chain reaction (qPCR) and western blot analyses revealed that the expression levels of steroidogenic acute regulatory (StAR) and aromatase decreased considerably and gradually after BPA treatment in a dose-dependent manner under BPA treatment. Further, remarkable decreases in their expression levels at the cellular levels were also confirmed via immunocytochemistry, and subsequent StAR and aromatase mRNA expression levels showed profiles similar to those observed for their proteins, i.e., both StAR and aromatase mRNA expression levels were significantly decreased under BPA treatment at concentrations ≥0.1 μM. We observed that follicle stimulating hormone upregulated StAR and aromatase protein expression levels; however, this effect was suppressed in the presence of BPA. Regarding the steroidogenic effects of BPA on KGN cells, controversies remain regarding the ultimate outcomes. Nevertheless, we believe that the results here presented imply that KGN cells have a good cellular and steroidogenic machinery for evaluating endocrine disruption. Therefore, StAR and aromatase could be stable and sensitive biomarkers in KGN cells for the cellular screening of the potential risk posed by exogenous and environmental chemicals to female reproductive (endocrine) function.

Noninvasive Brain Stimulation Using a Modulated Microwave Signal

  • Seo, Taeyoon;Oh, Seongwoog;Jung, Dahee;Huh, Yeowool;Cho, Jeiwon;Kwon, Youngwoo
    • Journal of electromagnetic engineering and science
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    • 제18권1호
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    • pp.70-72
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    • 2018
  • We propose a microwave signal generation system for brain stimulation. The existing brain stimulation system uses a signal of several tens of kHz, and the magnetic field distribution is wide. Microwave is used to locally limit the distribution of the electromagnetic field and to change the action potential of the cell with less power. The switch modulates the microwave signal to obtain a pulse envelope. The action potential of the cell can be controlled to the excitation/inhibition state by adjusting the repetition frequency. These results are confirmed by measuring the cell potential of the mouse brain.

Stereotactic radiosurgery for brain metastasis in non-small cell lung cancer

  • Won, Yong Kyun;Lee, Ja Young;Kang, Young Nam;Jang, Ji Sun;Kang, Jin-Hyoung;Jung, So-Lyoung;Sung, Soo Yoon;Jo, In Young;Park, Hee Hyun;Lee, Dong-Soo;Chang, Ji Hyun;Lee, Yun Hee;Kim, Yeon-Sil
    • Radiation Oncology Journal
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    • 제33권3호
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    • pp.207-216
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    • 2015
  • Purpose: Stereotactic radiosurgery (SRS) has been introduced for small-sized single and oligo-metastases in the brain. The aim of this study is to assess treatment outcome, efficacy, and prognostic variables associated with survival and intracranial recurrence. Materials and Methods: This study retrospectively reviewed 123 targets in 64 patients with non-small cell lung cancer (NSCLC) treated with SRS between January 2006 and December 2012. Treatment responses were evaluated using magnetic resonance imaging. Overall survival (OS) and intracranial progression-free survival (IPFS) were determined. Results: The median follow-up was 13.9 months. The median OS and IPFS were 14.1 and 8.9 months, respectively. Fifty-seven patients died during the follow-up period. The 5-year local control rate was achieved in 85% of 108 evaluated targets. The 1- and 2-year OS rates were 55% and 28%, respectively. On univariate analysis, primary disease control (p < 0.001), the Eastern Cooperative Oncology Group (ECOG) performance status (0-1 vs. 2; p = 0.002), recursive partitioning analysis class (1 vs. 2; p = 0.001), and age (<65 vs. ${\geq}65$ years; p = 0.036) were significant predictive factors for OS. Primary disease control (p = 0.041) and ECOG status (p = 0.017) were the significant prognostic factors for IPFS. Four patients experienced radiation necrosis. Conclusion: SRS is a safe and effective local treatment for brain metastases in patients with NSCLC. Uncontrolled primary lung disease and ECOG status were significant predictors of OS and intracranial failure. SRS might be a tailored treatment option along with careful follow-up of the intracranial and primary lung disease status.