• 제목/요약/키워드: $SjO_2$

검색결과 27건 처리시간 0.024초

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

  • 김세연;지대림
    • Journal of Yeungnam Medical Science
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    • 제11권1호
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    • pp.49-54
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    • 1994
  • 숭모판 치환술이 예정된 10명의 환자를 대상으로 심폐우회술 동안 발생할 수 있는 뇌산소 요구량과 소모량 사이의 불균형을 조사하기 위해 내경정맥 내의 산소포화도를 체외순환 5분전과 시작후 1분 이내, 저체온 상태가 안정되었을 때와 재가온하여 체온이 $34^{\circ}C$가 되었을 때, 그리고 체외순환 종료 후 15분 이내 등 5단계로 나누어 혈액을 채취하여 평균 동맥압, 체온, 동맥내 이산화탄소 분압, 혈색 소치, PH 등을 비교 분석하여 다음과 같은 결과를 얻었다. 1. 심폐우회술 중 이산화탄소 분압과 혈색소치 및 PH의 특이한 변화는 없었다. 2. 체외순환 직후 체온 및 평균 동맥압과 혈색 소치의 급격한 변화가 있었으나 임상적인 의미는 없었으며, $SjO_2$의 변화도 없었다. 3. 저체온 상태가 안정되었을때 $SjO_2$ 평균치가 72.4%이었으나 체온을 $34^{\circ}C$로 재가온하였을 때 56.1%로 감소하였다. 4. 재가온 시기에 $SjO_2$감소를 예방하기 위해 재가온 속도를 천천히 하고 이산화탄소를 증가시킴으로써 뇌혈류를 증가시키고 마취약제 등을 이용하여 산소에 대한 뇌대사율을 관류지수를 증가시켜야 하겠다.

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

  • 황병연
    • Spatial Information Research
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    • 제7권2호
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    • pp.271-282
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    • 1999
  • 본 논문에서느 다중-속성 데이터와 공간 조인 연산을 효율적으로 수행하는 색인기법인 SJ(Spatial Join) 트리를 제안한다. 또한, 다중-속성 데이터를 다루기 위한 기존의 다양한 알고리즘들을 계산 복잡도와 I/O 연산의 복잡도와 함께 설명한다. 우리는 이 논문을 통해서 제안된 SJ 트리가 기존의 데이터베이스 시스템에서 색인 기법으로 많이 사용되는 B-트리를 일반화한 것이라는 것을 보여준다. 이것은 SJ 트리가 기존의 대부분의 B-트리를 이용하는 저장구조에 쉽게 구현될 수 있다는 것을 의미한다. 공간 출력을 갖는 공간 조인 연산은 R-트리, B-트리, K-D-B 트리, SJ 트리에 대해서 성능평가를 수행한다. 성능평가 결과 제안된 SJ 트리가 점 데이터를 갖는 공간 조인 연산에 대해서 다른 색인 기법들보다 상대적으로 우수한 결과를 보여준다.

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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
    • 대한두개안면성형외과학회지
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    • 제15권2호
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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.

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

  • 양혜진;원진배;마진열;마충제
    • 약학회지
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    • 제55권2호
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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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    • 제45권4호
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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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    • 제16권9호
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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.

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

  • 용석중;이재갑
    • 대한약리학회지
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    • 제27권2호
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    • pp.207-210
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    • 1991
  • 급격한 기온의 변화가 심한 환절기에 우리는 감기라는 상기도 감염에 잘걸리게 된다. 비록 그 증상이 중하지 않고 또 안정을 하면서 10일정도가 되면 자연히 치유된다 할지라도 때로는 중한 합병증으로 고생하는 수가 있으며 또 두통, 발열, 기관지염, 인후통등으로 인하여 활동이 제한되며 활동능력이 저하되기도 한다. 1991년 6월 20일부터 7월 29일까지 원주 기독병원 내과에서 치료를 받은 30명의 환자에게 $1{\sim}7$일간 SJ-002를 $30\;ml{\times}3/day$를 투여하여 치료한 결과 다음과 같은 유의성 있는 결론을 얻었다. 상기도 감염증 환자 30명 (100.0%) 모두에게서 증상의 호전을 보였다. 부작용은 8명 (26.7%)에서 나타났으며 투약을 중지함으로써 모두 소실되었다. 1. 본 연구에서는 상기도 감염증 환자 30명 (100.0%) 모두에게서 임상증상의 전반적 개선이 관찰되었으며 특히 감기의 제증상에서 나타날 수 있는 증상등의 치료에 유효성이 있는 복합액제라고 생각된다. 2. 복용하는 동안 발전, 변비등의 경미한 부작용 환자 8명이 나타났지만 투약을 중지함으로서 모든 부작용들이 소실되었다. SJ-002(1병 30ml)의 조성은 다음과 같다. Acetaminophen 300mg Ibuprofen 100mg 12.5mg DL-methylephedrine HCl 30mg Caffeine anhydrous 2.5mg Chlorpheniramine maleate 80mg Guaifenesin 15mg Dextromethorphan HBr

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

  • 장대용;신병철;정기영;김종오;양종태;주유철;이승일
    • Tuberculosis and Respiratory Diseases
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    • 제51권6호
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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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    • 제34권6호
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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.

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

  • 강민종;이재명;이승준;손지웅;김동규;이명구;현인규;정기석
    • Tuberculosis and Respiratory Diseases
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    • 제52권2호
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    • pp.179-185
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    • 2002
  • 원발성 쇼그렌 증후군 (Primary Sj$\ddot{o}$gren's syndrome) 환자에서 폐에 발생하는 Bronchus-associated lymphoid tissue(BALT) 림프종은 드문 질환이다. 본 환자는 49세 여자 환자로 5년 전부터 안구 건조증 및 구강 건조증이 점차 진행하였으나 그냥 지내던 중 2년 전부터 운동시 호흡곤란 및 전신 무력감이 계속 진행하여 본원에 입원하였다. 흉부청진상 호흡음이 거칠게 들렸으며 양측 폐야 전체에 걸쳐 흡기시 악 설음이 관찰되었다. 형광항핵항체시험 (FANA)이 양성으로 "speckled pattern"을 보였으며 anti-SSA(Ro) Ab 및 anti-SSB(La) Ab는 강양성 소견을 보였다. 단순 흉부 방사선 사진 상 양측 폐에서 미만성의 망상 결절성 음영 증가가 관찰되었으며 고해상도 흉부 컴퓨터 단층촬영상에서 양측 폐에 걸쳐 미만성 분포를 보이는 모자이크 양상의 비균질성 감쇠 (mosaic pattern of inhomogeneous attenuation) 소견이 관찰되었다. 경기관지 폐 조직 생검상 림프구의 침윤이 관찰되었고 개흉 폐 생검술을 이용하여 얻은 폐조직의 병리 소견에서 'low grade marginal zone B cell lymphoma of BALT(bronchus associated lymphoid tissue) type'에 합당한 소견을 얻어 원발성 쇼그렌 증후군 (Primary Sj$\ddot{o}$gren's syndrome) 환자에서 폐에 발생한 Bronchus-associated lymphaid tissue(BALT) 림프종으로 확진되었다.