• Title/Summary/Keyword: $SjO_2$

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The Role of Jugular Venous Oxyhemoglobin Saturation Monitoring During Cardic Surgery (개심술 중 경정맥 산소포화도의 역할)

  • Kim, Sae-Yeon;Jee, Dae-Lim
    • Journal of Yeungnam Medical Science
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    • v.11 no.1
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    • pp.49-54
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    • 1994
  • Postoperative brain damage is one of most serious complications of cardiopulmonary bypass (CPB). To prevent brain damage during CPB, adequate cerebral perfusion for cerebral oxygen demand should be maintained. This study monitored jugular venous oxyhemoglobin saturation ($SjO_2$), which reflects the overall balance of cerebral oxygen supply and demand, intermittently in 10 patients undergoing cardiac surgery. At the initiation of CPB, in spite of a significant decrease in mean arterial pressure, $SjO_2$ did not change, and it was stable during the hypothermic period of CPB. But a significan reduction in $SjO_2$ was observed during the rewarming period, and $SjO_2$ had an inverse linear correlation with esophageal temperature. Furthermore, the percent decrease of $SjO_2$ was related to rewarming speed. Therefore, therapeutic approaches for $SjO_2$ desaturation include slower rewarming, increasing cerebral blood flow, decreasing the cerebral metabolic rate for oxygen, increasing oxygen content, and increasing perfusion flow rate.

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Performance of Spatial Join Operations using Multi-Attribute Access Methods (다중-속성 색인기법을 이용한 공간조인 연산의 성능)

  • 황병연
    • Spatial Information Research
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    • v.7 no.2
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    • pp.271-282
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    • 1999
  • In this paper, we derived an efficient indexing scheme, SJ tree, which handles multi-attribute data and spatial join operations efficiently. In addition, a number of algorithms for manipulating multi-attribute data are given , together with their computational and I/O complexity . Moreover , we how that SJ tree is a kind of generalized B-tree. This means that SJ-tree can be easily implemented on existing built-in B-tree in most storage managers in the sense that the structure of SJ tree is like that of B-tree. The spatial join operation with spatial output is benchmarked using R-tree, B-tree, K-D-B tree, and SJ tree. Results from the benchmark test indicate that SJ tree out performance other indexing schemes on spatial join with point data.

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Unusual Sj${\ddot{o}}$gren's Syndrome with Bilateral Parotid Cysts

  • Seo, Bommie Florence;Ju, Rock Kuen;Kwok, Seung-Ki;Oh, Deuk Young
    • Archives of Craniofacial Surgery
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    • v.15 no.2
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    • pp.98-101
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    • 2014
  • Sj${\ddot{o}}$gren's syndrome is a chronic autoimmune exocrinopathy that destroys salivary and lacrimal gland tissue. We report an unusual case of this disease in a 54-year-old woman who presented with multiple and bilateral parotid cystic masses. The multiple, small, bead-like cysts were clearly evident in the computed tomography sections in this patient, a visible reminder that this may be the initial presentation in a patient with Sj${\ddot{o}}$gren's syndrome. As the case illustrates, Sj${\ddot{o}}$gren's syndrome should be included in the differential diagnosis of multiple and bilateral cystic parotid lesions.

The Study on Compounds of the Fermented Sipjundaebo-tang and its Neuroprotective Activity (십전대보탕 발효물의 성분 분석 및 뇌신경 세포 보호 활성)

  • Yang, Hye-Jin;Weon, Jin-Bae;Ma, Jin-Yeul;Ma, Choong-Je
    • YAKHAK HOEJI
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    • v.55 no.2
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    • pp.121-126
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    • 2011
  • Sipjundaebo-tang was a well-known restorative traditional herbal prescription that used to treat anemia, anorexia, fatigue and inflammation. In this study, we examined the bioconversion of compounds in the Sipjundaebo-tang (SJ) and fermented Sipjundaebo-tang with Lactobacillus fermentum KFRI 164 (FSJ) using established HPLC-DAD method. The chromatogram of FSJ has shown that the contents of six bioactive compounds 5-HMF, paeoniflorin, ferulic acid, cinnam aldehyde, decursin, glycyrrhizin in SJ has decreased. And the contents of unknown compounds (1), (2), (3), (4) and (5) in FSJ were higher than each contents of SJ. The antioxidant activities of SJ and FSJ were conducted by DPPH free radical and Hydrogen peroxide ($H_2O_2$) scavenging assay. Electron donating activity (EDA, %) value of FSJ has shown higher than 21.9% and 14.5% at a concentration of 0.5 mg/ml for DPPH radical scavenging activity and $H_2O_2$ scavenging activity, respectively. Also, the neuroprotective activities of SJ and FSJ against glutamate-induced oxidative stress in a mouse hippocampal cell line (HT22) were evaluated by MTT assay. As a result, FSJ has shown higher neuroprotective activity than 56.5% comparing with SJ. In conclusion, the fermented SJ using microorganism could convert compounds in SJ and enhance antioxidant activity and neuroprotective activity.

Questionable Reliability of Malondialdehyde to Measure Oxidative Stress in Sjögren's Syndrome: Preliminary Study

  • Lee, Kyung-Eun;Jung, Won;Suh, Bong-Jik;Cha, Seunghee
    • Journal of Oral Medicine and Pain
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    • v.45 no.4
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    • pp.89-96
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    • 2020
  • Purpose: To investigate the expression of malondialdehyde (MDA), lipid peroxidation marker for oxidative stress (OS), in autoimmune Sjögren's syndrome (SjS) by utilizing the SjS-prone C57BL/6.NOD-Aec1Aec2 (B6DC) mouse and the SjS patient plasma samples. Methods: The MDA concentrations in the lysates of the submandibular gland, liver, and serum samples from the SjS-prone B6DC mouse model were compared with those from the C57BL/6J as a control. A thiobarbituric acid reactive substance (TBARS) assay kit was used to measure MDA. Plasma samples from five SjS patients and five control subjects were also evaluated. Results: The MDA concentrations in experimental animals and controls were not significantly different. There were no significant differences between the plasma of SjS patients and of controls. Conclusions: The expression of MDA was investigated in the organs from the SjS-prone B6DC mouse for the first time and in the plasma samples of SjS patients. No significant differences were observed between SjS and control samples when MDA was the target molecule with the TBARS assay. MDA may not be a reliable marker to measure OS contrary to the published studies involving OS of SjS.

Effect of Fermented Lactic Acid Bacteria on Antiallergic Effect of Artemisia princeps Pampanini

  • Shin Yong-Wook;Bae Eun-Ah;Lee Bo-Mi;Min Sung-Won;Baek Nam-In;Ryu Su-No;Chung Hae-Gon;Kim Dong-Hyun
    • Journal of Microbiology and Biotechnology
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    • v.16 no.9
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    • pp.1464-1467
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    • 2006
  • Artemisia princeps Pampanini, which is named as Sajabalssuk (SJ-1) in Korea, was fermented with lactic acid bacteria (LAB), and their antiallergic activities were investigated. When SJ-l was fermented with some LAB isolated from human feces, the inhibition of NO production in RAW264.7 cells and antioxidant activities of SJ-1 were not affected. However, the inhibitory activity of SJ-1 against degranulation of RBL-2H3 cells induced by IgE was increased by LAB fermentation. Among the LAB tested, Bifidobacterium infantis K-525 provided the most potent inhibitory effect of SJ-1 against degranulation of RBL-2H3 cells. SJ-1 extract fermented with B. infantis K-525 (F-SJ-1) potently inhibited the mouse passive cutaneous anaphylaxis reaction induced by IgE with antigen, skin dermatitis induced by 12-O-tetradecanoylphorbol-13-acetate, and scratching behaviors induced by compound 48/80. These inhibitory activities of F-SJ-1 were more potent than those of SJ-1. These findings suggest that the inhibition of SJ-1. extract against IgE-induced allergic diseases, such as rhinitis and asthma, can be enhanced by LAB fermentation.

A Clinical Study of SJ-002 (SJ-002의 임상적 효과)

  • Yong, Suk-Joong;Lee, Jae-Gap
    • The Korean Journal of Pharmacology
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    • v.27 no.2
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    • pp.207-210
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    • 1991
  • SJ-002 is a combination prescription of acetaminophen, ibuprofen, DL-methylephedrine HCl, caffeine, chlorpheniramine maleate, guaifenesin and dextromethorphan HBr. Common cold symptoms such as headache, pharyngitis, fever, or cough were improved by oral administration of SJ-002. This study enrolled about 30 patients, which was carried out from Jun. to Jul. 1991. The patients were given one bottle (30 ml) of SJ-002 t.i.d by P.O for one to seven days. 1) Thirty patients(100%) had improvements with this drug. 2) There were eight patients (26.7%) with side effects. But the side effects were not serious and transient when the medication was discontinued.

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A Case of Sj$\ddot{o}$gren's Syndrome with Interstitial Lung Disease and Multiple Cystic Lung Disease (간질성 및 다낭성 폐질환이 동반된 쇼그렌 증후군 1례)

  • Jang, Dai-Yong;Shin, Byung-Chul;Jung, Ki-Young;Kim, Jong-O;Yang, Jong-Tae;Joo, Yoo-Chul;Lee, Seung-Il
    • Tuberculosis and Respiratory Diseases
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    • v.51 no.6
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    • pp.597-602
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    • 2001
  • A 47-years-old woman presented with a 2-month history of a dry mouth and dry cough. The patient had been taking medication for Sj$\ddot{o}$gren's syndrome for approximately 7 years. The chest radiography showed multiple cystic lesions and a hazy density in both lower lung fields. The HRCT showed a diffuse ground glass like appearance and multiple variable sized cystic lesions in both lung fields. After medication, the symptoms were aggravated. Bronchoscopy was preformed with a transbronchial lung biopsy. The biopsies showed an infiltration of lymphocytes, neutrophils, monocytes and histiocytes through the interstitial space of the alveola and a widening of the alveolar septa. However, the histological findings of the cysts were not obtained. Sj$\ddot{o}$gren's syndrome is a slowly progressive inflammatory autoimmune disease, which is characterized by lymphocyte mediated destruction of the exocrine glands, with pulmonary involvement in approximately 19-65%, High-resolution CT is a sensitive technique for assessing the pulmonary involvement in patients with Sj$\ddot{o}$gren's syndrome. Although a lung biopsy is not always necessary for establishing a diagnosis of an interstitial lung disease in Sj$\ddot{o}$gren's syndrome. A lung biopsy may reveal a wide spectrum of changes ranging from a mild inflammatory response to end stage fibrosis with honeycombing. Because of the predominantly peribronchiolar inflammatory infiltration and inspissated secretions the cysts were suspected to have been formed by the ball-valve phenomen. However, no definite evidence was obtained.

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Simulation and Fabrication Studies of Semi-superjunction Trench Power MOSFETs by RSO Process with Silicon Nitride Layer

  • Na, Kyoung Il;Kim, Sang Gi;Koo, Jin Gun;Kim, Jong Dae;Yang, Yil Suk;Lee, Jin Ho
    • ETRI Journal
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    • v.34 no.6
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    • pp.962-965
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    • 2012
  • In this letter, we propose a new RESURF stepped oxide (RSO) process to make a semi-superjunction (semi-SJ) trench double-diffused MOSFET (TDMOS). In this new process, the thick single insulation layer ($SiO_2$) of a conventional device is replaced by a multilayered insulator ($SiO_2/SiN_x/TEOS$) to improve the process and electrical properties. To compare the electrical properties of the conventional RSO TDMOS to those of the proposed TDMOS, that is, the nitride_RSO TDMOS, simulation studies are performed using a TCAD simulator. The nitride_RSO TDMOS has superior properties compared to those of the RSO TDMOS, in terms of drain current and on-resistance, owing to a high nitride permittivity. Moreover, variations in the electrical properties of the nitride_RSO TDMOS are investigated using various devices, pitch sizes, and thicknesses of the insulator. Along with an increase of the device pitch size and the thickness of the insulator, the breakdown voltage slowly improves due to a vertical field plate effect; however, the drain current and on-resistance degenerate, owing to a shrinking of the drift width. The nitride_RSO TDMOS is successfully fabricated, and the blocking voltage and specific on-resistance are 108 V and $1.1m{\Omega}cm^2$, respectively.

A Case of Bronchus-Associated Lymphoid Tissue(BALT) Lymphoma in the Lung of the Patient with Primary Sj$\ddot{o}$gren's Syndrome (원발성 쇼그렌 증후군(Primary Sj$\ddot{o}$gren's Syndrome) 환자에서 발생한 Bronchus-Associated Lymphoid Tissue(BALT) 림프종 1례)

  • Kang, Min-Jong;Lee, Jae-Myung;Lee, Seung-Joon;Son, Jee-Woong;Kim, Dong-Gyu;Lee, Myung-Goo;Hyun, In-Gyu;Jung, Ki-Suck
    • Tuberculosis and Respiratory Diseases
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    • v.52 no.2
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    • pp.179-185
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    • 2002
  • A bronchus-associated lymphoid tissue(BALT) lymphoma of the lung is a rare disorder of patients with Sj$\ddot{o}$gren's syndrome. A 49-year-old woman was admitted for an evaluation of exertional dyspnea and general weakness which had persisted for two years. The patient had suffered from dry mouth and dry eyes for five years. The physical examinations showed a coarse breath sound with inspiratory crackles on the whole lung field, particularly on the both basal lungs. The laboratory data disclosed high titers of anti-nuclear antibodies, and anti-SSA (Ro), and anti-SSB (La) antibodies. Chest radiographs demonstrated the presence of bilateral, diffuse, reticulonodular densities in both lungs. Thin-section CT scans showed diffusely distributed mosaic pattern of an inhomogeneous attenuation extending over the entire lung zone. The histological findings from an open-lung biopsy specimen revealed an accumulation of lymphoid cells around the bronchioles and an extension of malignant lymphoma cells from the bronchiolar epithelium toward the alveolar space. Immunohistochemically, the neoplastic cells reacted positively to the CD 20 antigen and were focally positive for the UCHL 1 antigen. The histological diagnosis was consistent with a low grade marginal zone B-cell lymphoma originating in the BALT. Here, we present a case of a histologically proven BALT lymphoma of the lung in a patient with primary Sj$\ddot{o}$gren's Syndrome.