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      • KCI등재

        콩 단백 성분 및 연령이 암컷 흰쥐의 혈장 지질 농도와 인지질 지방산 패턴에 미치는 영향

        정은정(Eun-Jung Chung),김수연(Soo-Yeon Kim),김지영(Ji-Young Kim),안지영(Ji-Young Ahn),박정화(Jung-Wha Park),차명화(Myung-Hwa Cha),이양자(Yang-Cha Lee Kim) 한국식품영양과학회 2003 한국식품영양과학회지 Vol.32 No.2

        혈중 지질농도는 식이단백질 종류보다는 연령의 영향을 많이 받아, young군보다 old군의 총 콜레스테롤, TG, HDL-콜레스테롤, LDL+VLDL-콜레스테롤 및 AI 모두 높았다. 한편 콩 단백질군에서 HDL-콜레스테롤 수준이 증가하고, LDL+VLDL-콜레스테롤와 AI는 감소하여, 심혈관질환에 대한 콩 단백질의 유익한 효과를 확인할 수 있었다. 식이단백질에 의해 유의한 영향을 받은 혈장 인지질의 지방산조성중 22:0, 18:1ω9, ∑MUFA 조성은 카제인군에서 콩 단백질군 보다 높았으며, 반대로 ∑SFA 조성은 카제인군에서 낮았다. 연령에 의해 혈장 인지질 지방산 조성에 있어 유의한 차이를 보인 지방산 중 22:0, 18:1ω9, 22:1, 18:3ω3 및 22:4ω6는 young군에서 높은 반면에, 22:6ω3, ∑ω3, 18:2ω6, 20:4ω6, ∑ω6 및 ∑PUFA의 조성비율은 old군에서 높게 나타났다. 이와 같이 식이 단백질의 종류보다 연령의 영향력이 더 많이 나타난 것은 혈중 콜레스테롤 수준이 식이 단백질보다는 연령의 영향을 더 크게 받았기 때문으로 생각된다. 혈장 인지질 지방산의 대사지표 중 Δ7-desaturation index(16:0⇒16:1ω7)와 Δ9-desaturation index(18:0⇒18:1ω9)가 식이 단백질의 영향을 받아 카제인군에 비해 콩 단백질군에서 유의하게 낮았다. Δ7- 및 Δ9-desaturation index만이 식이 단백질의 영향을 받은 것은 식이 단백질보다 desaturase 활성에 더 큰 영향력을 미치는 콜레스테롤이 식이에 첨가되었기 때문이라 생각된다. Δ-4 desaturation index (22:4ω6⇒22:5ω6)는 young군에 비해 old군에서 높았으며, elongation index(20:4 ω6⇒22:4ω6)는 old군에서 낮았다. 대부분의 elongation과 desaturation 단계는 연령에 따라 유의한 차이를 보이지 못하였으나, ω3계 지방산의 전체적인 elongation-desaturation 단계를 나타내는 ∑products-fatty acid(ω3)/α-LNA(ω3) 비율이 old군에서 young군보다 유의하게 높아, 연령에 따른 PUFA 대사의 변화가 관찰되었다. 이상에서와 같이, 콩 단백질의 섭취로 흰쥐 혈장 인지질의 ∑MUFA 조성은 낮고 ∑SFA 조성은 높아 다른 지질 강화성분의 섭취와 유사한 결과를 나타내었다. 혈중 콜레스테롤 수준이 높은 old군에서 체내 막조직의 유동성을 유지하기 위해 PUFA의 합성 특히 ω3계 지방산의 elongation-desaturation이 증가하여 총 PUFA 조성이 young군보다 높았다. 연구결과로 이소플라본을 포함한 콩 단백질의 혈중 지질저하 기전에 대해 체계적인 설명은할 수 없지만, 콩 단백질이 혈장 지방산의 조성을 변화시킴으로써 간접적으로 심혈관계 질환에 대해 유익한 효과를 미침을 알 수 있었다. 한편, 이러한 혈관의 건강과 관련된 콩의 유익한 효과는 이소플라본과 같은 콩의 특정 성분의 단독효과라기보다는 콩 단백질과의 복합효과에 의한 것이라는 주장은 매우 설득력 있다고 생각된다. Effects of soy protein concentrate (SPC) containing isoflavone and casein diets on plasma phospholipid (PLs)-fatty acid patterns were investigated in 7- & 40- wk old female rats. Diets containing 16% SPC (soy/young: SY, soy/old: SO) and casein (casein/young: CY, casein/ old: CO) supplemented with 0.5% cholesterol were fed for 4 wks. Fatty acid compositions of plasma PLs were determined by TLC and GLC. Compared to the dietary protein effects, age effects on serum lipids were more profound. The levels of total cholesterol (Chol.), triglyceride, HDL-Chol., (LDL+VLDL)-Chol. and atherogenic index (AI) were higher in older groups (OC & OS) than younger groups (YC & YS). Soy groups had higher HDL-Chol. level and lower (LDL+VLDL)-Chol. and AI, compared with casein groups. The compositions of C22:0, C18:1ω9 and sum of MUFA in plasma PLs were significantly higher in casein group (CY & CO) than soy group (SY & SO), but those of sum of SFA were higher in soy group. The compositions of C22:0, C18:1ω9, C22:1, C18:3ω3 and C22:4ω6 were higher and those of C22:6ω3, sum ofω3, C18:2ω6 C20:4ω6, sum ofω6 and sum of PUFA were lower in plasma PLs of younger rats. The average P/S and ω3/ω6 ratio in older group was higher. The Δ-7 desaturation index (16:0⇒16:1ω7) and Δ-9 desaturation index (18:0⇒18 : 1ω9) were lower in soy group than casein group, while Δ-6 and Δ-5 desaturation index were not affected by dietary protein. The Δ-4 desaturation index (22:4ω6⇒22:5ω6) were higher and, elongation index (20:4ω6⇒22:4ω6) were lower in older group. The ratio of the products of ω3 fatty acid series/precursor of ω3 fatty acid series (C18:3) was significantly higher in older group, which in- dicated that age affected the plasma PUFA metabolism. On the other hand, older rats had higher serum cholesterol level compared with younger rats. Taken together, these changes in fatty acid composition might cause minimal changes in the membrane fluidity induced by the increase serum cholesterol level.

      • KCI등재
      • 목표이론에 의한 예산참여와 성과간의 구조관계분석

        정화영 大田産業大學校 1996 論文集 Vol.3 No.-

        The objective of this study was to empirically test the intervening role of goal level, goal commitment, motivation in the structural model of the relationship between budgetary participation and performance. To test the role of intervening variables were used correlation, LISREL. The results of empirical tests were as follows. Budgetary participation affected goal level which in turn affected motivation and motivation ultimately affected performance. Goal level and motivation were intervening variables. But goal commitment did not play a significant intervening role, i.e. the goal level-motivation relationship is influenced by goal commitment. The relationship between goal Bevel and motivation may be positive for those high in goal commitment and negative for those low in goal commitment. The goal commitment may be a moderating variable. Although the findings both in support of and in refutation of the research form of hypotheses were weak, there is still sufficient evidence to support suggestions for further research.

      • 급성 심근경색증에 동반된 승모판 폐쇄부전증의 임상적 특징

        정상만,조영일,조화상,유광하,송기호,인행환 건국대학교 의과학연구소 1997 건국의과학학술지 Vol.7 No.-

        The early detection and proper management of mitral regurgitation(MR) associated with acute myocardial infarction(MI) is very important to improve the clinical course and outcome of disease. The change of left ventricular shape and regional function, papillary muscle rupture are major determinant of the existence and severity of MR. We performed 2D and M mode echocardiography of 28 patients at the early stage of acute MI to evaluate the existance and degree of MR and its pathogenetic factor. Significant MR occured in 12 (42.9%) patients. In the group of MI with MR, the inferior MI was frequent (7 case) than anterior MI (5 case) comparing to the patient group of MI without MR (inferior MI : 6 case, anterior MI : 10 case) (p<0.01).The left ventricular end diastolic dimension(LVEDD), end systolic dimension (LVESD) and left atrial dimension (LAD) were significantly increased in MI with MR than MI without MR (LVEDD : 57.3 ±8.6 vs 46.4 ±9.2, p<0.05 ; LVESD : 52.9 ±9.2 vs 38.3 ±7.4, p<0.01 ; LAD : 45.4 ±3.8 vs 37.7 ±3.7, p<0.05).However, the ejection fraction was not different between two group two groups. These datas showed that MR was more frequent in inferior MI and the hemodynamic derangement was more serious in acute MI with MR.

      • B형 간염바이러스의 태아와 성인간세포에 대한 감염성 해명 연구

        정태호,김성국,서화정,윤영국,임종완,차상호 경북대학교 의학연구소 1999 경북대학교병원의학연구소논문집 Vol.3 No.1

        사람의 태아와 성인의 간세포에 대한 B형 간염바이러스의 감염도를 비교 분석함으로써 HBV 와 간세포간의 친화도내지는 HBV 수용체에 관한 정보를 얻고자 함 대상 및 방법 : 성인이 외상을 입어 부득이 손상된 간조직을 절제하였을 경우와 모자보건법상 임신지속이 어려운 상태에서 부인과적 수술시 21주 전후의 태아 간조직을 얻어 DMEM 을 배지로 50% 용량으로 HBsAg 양성인 사람 혈청을 가하여 5일간 체외 배양하고 병리조직학적 처리후 효소 면역학적 방법으로 HBsAg 를 염색하여 바이러스의 존재 여부를 검색하였다. 결과 : 태아와 성인 간조직을 5일간 체외 배양하였을 때 그 조직상은 간조직임을 인지할 수 있었다. HBV 의 감염여부는 DAKO 사의 효소면역 법으로 조사한 결과 태아의 간조직에서는 HBsAg 양성부위를 발견하지 못하였으나, 성인 간조직에서는 HBsAg 양성부위가 발견되었다. 결론 : 태생 21주 전후의 태아의 간세포는 HBV 와 친화도는 아주 미약하거나 없고, 성인 간세포는 HBV에 대한 친화도가 높다. 따라서 태생 21주의 간세포에는 HBV 의 감염이 어렵다는 것을 인지하게 되었다. Considerable progress has been made in the immune prophylaxis of hepatitis B virus(HBV) infection and in the understanding of its replication and pathogenecity at the molecular level. However, a convenient in vitro assay for HBV infectivity has been lacking and the early steps of viral life cycle are now yet well understood. Primary cultured human hepatocytes are reported to be susceptible to HBV 10-12, but these systems are not practical because they are short-lived and require primary explanted human liver. However, it is uncertain yet whether primary hepatocytes of human fetal liver are susceptible to HBV for infection or not. We have expanded the infectivity of HBV into a primary cultures of human fetal hepatocytes together with controversy of adult primary hepatocytes. To investigate the infectivity of HBV for, adult and fetal hepatocytes After 5 day culturing fetal(1) and adult(2) liver tissues, which obtained from a surgical operation on DMEM culture media with half HBV positive serum, separating liver cells and fixing them, the existence of HBsAg antigen was investigated through the immuno-enzymatic staining. HBsAg stained area was not found in the 21 weeks gestation liver cells until 5 days of invitro-culture, while it was found in the adult liver cells. This test result showed that the HBV infection is very hard to happen in the liver cells 21 weeks gestation or prior one.

      • 사지 말초신경 손상 환자에 대한 컴퓨터 전신 체열촬영의 적용

        정일화,김영덕,황영중 건국대학교 의과학연구소 1996 건국의과학학술지 Vol.5 No.-

        D.I.T.I.(Digital infrared thermographic imaging) system is noninvasive, easy to reading, objective and physiologic instrument by measuring and imaging infrared energy emitted from skin surface. It detects surface body heat into a visible display, which is then photographed or videotaped as a permanent record. It graphically depicts temperature gradients over a given body surface area at a given time and has been used to study biologic thermoregulatory abnormalities directly or indirectly influencing skin temperature. As this review specifically addresses clinical problems involving the lower and upper extremities, thermography has been used in numerous sites to evaluate surface thermal changes in variety of conditions. These include spinal nerve root disorders(radiculopathy): nonradicular peripheral nerve impairment due to sensory or autonomic nerve irritation or damage, as in carpal tunnel syndrome ; brachial plexus disorders ; posttraumatic sympathetically maintained pain ; reflex sympathetic dystrophy ; vascular abnormalities including thromboses ; bony and soft tissue injuries and arthritis. Many of these conditions occur in upper extremity loci. Patients with injured extremities were evaluated with the aid of D.I.T.I.. Preoperative and postoperative thermographic imaging were compared regarding to the correlation between the injuries and thermographic image. Close correlation revealed the significance of thermographic imaging in the field of the reconstruction of injured extremities.

      • CORBA 기반의 분산 통합 망관리 시스템

        정영준,김남호,송화선 강원대학교 정보통신연구소 1999 정보통신논문지 Vol.3 No.-

        This paper analyzes some problems for the architecture of TMN-based integrated network management systems and presents a CORBA-based integrated network management system, which maintains transparency and scalability of distributed managed objects and reliably provides interoperability between heterogeneous networks and systems. In this paper, the proposed system model has been applied to the TMN based management systems and then analyzed for qualitative evaluation of the system performance. To implement the proposed system, two different types of model have proposed: one is a system using a CORBA gateway and the other is a system, which transforms all managed objects into CORBA objects. The former model is adequate for the implementation of a short-term integrated network management system and the latter one is good for a long-term management system.

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