• 제목/요약/키워드: Bovine aortic endothelial cells

검색결과 35건 처리시간 0.02초

Superoxide에 의존하여 내피세포에서 유리되는 이완성 물질의 특성에 대한 실험적 연구 (Characterization of Superoxide-dependent Endothelial Relaxing Factor(s))

  • 이기남;이원석;임병용;홍기환
    • 대한약리학회지
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    • 제26권2호
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    • pp.145-152
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    • 1990
  • 최근 본 교실에서는 two-bath system을 이용하여 혈관 내피세포에서 superoxide에 의존한 혈관 이완성 물질을 동정하여 발표하였다. 본 실험에서는 상기 system을 이용하여 돼지의 관상동맥 내피세포에서 유리되는 superoxide에 의존한 이완성 물질이 고양이의 흥부 대동맥 내피 및 소의 대동맥 배양내피세포에서 얻어진 이완성 물질에 의한 이완과 매우 유사함을 관찰하여 다음과 같은 결과를 얻었다. 1. 고양이 흥부 대동맥, 돼지 관상동맥의 내피세포 및 소 대동맥 배양 내피세포 등에서 유리되는 superoxide에 의존한 이완 물질은 모두 유사한 이완 작용을 나타내었다. 2. 돼지 관상 동맥 내피세포에서 유리되는 superoxide 의존성 이완 물질이 고양이의 흥부 대동맥 내피세포나 소의 대동맥 배양 내피세포에서 유리되는 이완 물질과는 다소 다른 점도 있었다. 즉, 돼지 관상동맥 내피세포에서 유리되는 이완 물질의 작용은 catalase나 superoxide dismutase(SOD)에 의하여 억제되었으나, 후자의 두 동맥 내피세포에서 유리되는 이완 물질은 SOD에 의해서만 억제되었다. 3. 이러한 이완성 물질들의 생성은 여러 lipoxygenase억제제인 gossypol, nordihydroguaiaretic acid, AA 861 및 eicosatetraynoic acid 등의 전처치에 의하여 봉쇄되었다. 4. Cyclooxygenase 억제제인 indomethacin이 나 cytochrome P-450 monooxygenase 억제제인 proadifen과 cimetidine에 의하여는 봉쇄되지 아니하였다. 이상의 결과로부터 이러한 이완성 물질들은 비록 각기 다른 종의 동물 모델에서 얻었다고 하더라도 장기에 따라 다소 반응의 차이는 있으나 동질성 이완 물질이며, 나아가 이러한 이완성 물질은 여러 조직의 허혈-재관류 손상에 있어서 병리생리학적으로 관련될 것으로 사료된다.

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뇌졸중 치료제인 한약의 효과 (The Effects of Herb Extracts in Cerebrovascular Accidental Patient)

  • 이미화;박형숙;최원철
    • 재활간호학회지
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    • 제3권2호
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    • pp.141-153
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    • 2000
  • The several Chinese herbs such as Soon-Ki-Hwal-Hyul-Tang, Bo-Yang-Hwan-O-Tang, Seong-Hyang-Jeong-Ki-San, So-Hap-Hyang-Won and O-Yak-Soon-Ki-San were extracted with water and then lyophilized. For identification of the effect of extracted herbs, they were medicated to 103 patients of cerebrovascular accident for 4 week. They were hospitalized in D-Oriental Medical Hospital from April to August in 1999. The herbs were extracted with water and lyophilized and then, used as samples. The medical history of each patient was detected and analyzed from their medical records. The results were as follows; 1) Each sample (Soon-Ki-Hwal-Hyul-Tang, Bo-Yang-Hwan-O-Tang, Seong-Hyang-Jeong-Ki-San, and O-Yak-Soon-Ki-San) was statistically significant differences of systolic blood pressure(t=4.22, P=0.0004; t=3.44, P=0.0028; t=2.11, P=0.0463; t=3.23, P=0.0052). The statistically significant difference of diastolic blood pressure showed by medicated with Soon-Ki-Hwal-Hyal-Tang, Seong-Hyang-Jeong-Ki-San, and O-Yak-Soon-ki-San (t=2.13, P=0.0459; t=2.68, P=0.0136; t=3.12, P=0.0066). 2) The statistically significant difference of the arm/leg-ROM showed by medicated with Soon-Ki-Hwal-Hyul-Tang, Bo-Yang-Hwan-O Tang, So-Hap-Hyang-Won(t=4.74/4.95, P=0.0002/0.0001; t=2.25/2.44, P=0.0368/0.0248; t=5.85/6.76, P=0.0001/0.0001). 3) In the verbal disorder, Soon-Ki-Hwal-Hyul-Tang, Bo-Yang-Hwan-O-Tang had statistically significant differences(t=4.50, P=0.0002; t=3.32, P=0.0036). 4) In the conscious disorder, Soon-Ki-Hwal-Hyul-Tang, Bo-Yang-Hwan-O-Tang, Seong-Hyang-Jeong-Ki-San, and So-Hap-Hyang-Won had statistically significant differences(t=6.32, P =0.0001; t=8.32, P=0.0001; t=3.74, P=0.0012; t=5.14, P=0.0001). 5) Bovine aortic endothelial cell (BAEC) were cultured in DMEM treating 0.01mg/ml, and 0.1mg/ml of each lyophilized samples for 24 hours. In BAECs were treated by 5 kinds of samples, the effect of So-Hyap-Hyang-Won induced syncytium of adjacent endothelial cells. It may induce the recovering of the damaged blood vessels in cerebrovascular accidental patient by angiogensis of endothelial cells. Therefore, it suggests that the medication of So-Hap-Hyang-Won will help to nursing care for cerebrovascular accidental patients.

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혈관내피세포에 부착하는 THP-1에 대한 발효마늘추출물의 효과 (Effect of Fermented Garlic Extract on Adhesion of THP-1 Cells to Bovine Aortic Endothelial Cells)

  • 권오성;송지나;유휘종;박헌용
    • 생명과학회지
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    • 제27권5호
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    • pp.553-560
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    • 2017
  • 마늘은 전통적으로 cycloalliin을 포함한 기능성 식품으로 널리 알려져 있다. 본 연구를 통해 혈관계에서 발효마늘추출물이 어떤 효능을 갖는지 알아보았다. 먼저, 발효마늘추출물이 내피세포의 단핵구 부착을 억제하는 것을 관찰하였다. 농도 변화에 따른 실험결과, 발효마늘추출물을 0.1 또는 $1{\mu}g/ml$ 농도로 전처리 하면, LPS에 의하여 촉발되는 소 대동맥 내피세포에 달라붙는 THP-1의 부착이 억제되는 것을 확인하였다. 단핵구의 내피세포 부착이 염증반응 초기단계에 진행되는 과학적 근거를 고려하면 이와 같은 결과는 발효마늘추출물이 혈관 염증을 저해한다고 볼 수 있다. 또한 세포신호전달물질의 활성변화를 관찰한 결과, 발효마늘추출물이 소 대동맥 내피세포에서 eNOS와 Akt의 활성을 유도함을 알았다. eNOS의 인산화 반응은 발효마늘추출물을 처리한지 10분 후에 최대로 상승되었으며, 이와 유사하게 Akt도 발효마늘추출물을 처리하고 10분 후에서 인산화 반응이 최대로 상승되었다. 산화질소 양 변화 측정에서도 발효마늘추출물은 산화질소의 생성을 상승시켰다. 한편, 산화질소 생성을 저해하는 억제제 처리는 발효마늘추출물에 의해 나타나는 세포부착 저해능력을 감소시켰다. eNOS와 Akt를 매개로 하는 LPS 유도 세포 부착 정도가 발효마늘추출물에 의하여 억제된다는 것은 산화질소가 세포부착에 중요 매개물임을 의미한다. 결론적으로, 발효마늘추출물은 염증관련 질환을 예방하는 데에 중요한 역할을 한다고 할 수 있다.

Biocompatibility of Poly(MPC-co-EHMA)/Poly(L-1actide-co-glycolide) Blends

  • Gilson Khang;Park, Myoung-Kyu;Jong M. Rhee;Lee, Sang-Jin;Lee, Hai-Bang;Yasuhiko Iwasaki;Nobuo Nakabayashi;Kazuhiko Ishihara
    • Macromolecular Research
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    • 제9권2호
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    • pp.107-115
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    • 2001
  • Poly(L-lactide-co-glycolide)(PLGA) was blended with poly[$\omega$-methacryloyloxyethyl phospho-rylcholine-co-ethylhexylmethacrylate (PMEH)] (PLGA/PMEH) to endow with new functionality i.e., to improve the cell-, tissue- and blood-compatibility. The characteristics of surface properties were investigated by measurement of contact angle goniometer, Fourier-transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR) and electron spectroscopy for chemical analysis (ESCA). NIH/3T3 fibroblast and bovine aortic endothelial cell were cultured on control and PLGA/PMEH surfaces for the evaluation of ceil attachment and proliferation in terms of surface functionality such as the concentration of phosphoryl-choline. Also, the behavior of platelet adhesion on PLGA/PMEH was observed in terms of the surface functionality. The contact angles on control and PLGA/PMEH surfaces decreased with increasing PMEH content from 75$^{\circ}$ to about 43$^{\circ}$. It was observed from the FTIR-ATR spectra that phosphorylcholine groups are gradually increased with increasing blended amount of MPC. The experimental P percent values from ESCA analysis were more 3.28∼7.4 times than that of the theoretical P percent for each blend films. These results clearly indicated that the MPC units were concentrated on the surface of PLGA/PMEH blend. The control and PLGA/PMEH films with 0.5 to 10.0 wt% concentration of PMEH were used to evaluate cell adhesion and growth in terms of phosphorylcholine functionality and wettability. Cell adhesion and growth on PLGA/PMEH surfaces were less active than those of control and both cell number decreased with increasing PMEH contents without the effect of surface wettability. It can be explained that the fibronectin adsorption decreased with an increase in the surface density of phosphorylcholine functional group. One can conclude the amount of the protein adsorption and the adhesion number of cells can be controlled and nonspecifically reduced by the introduction with phosphorylcholine group. Morphology of the adhered platelets on the PLGA/PMEH surface showed lower activating than control and the number of adhered platelets on the PLGA/PMEH sample decreased with increasing the phosphorylcholine contents. The amount of fibrinogen adsorbed on the PLGA/PMEH surface demonstrated that the phospholipid polar group played an important role in reducing protein adsorption on the surface. In conclusion, this surface modification technique might be effectively used PLGA film and scaffolds for controlling the adhesion and growth of cell and tissue, furthermore, blood compatibility of the PLGA was improved by blending of the MPC polymer for the application of tissue engineering fields.

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활락효영단합인삼양위탕(活絡效靈丹合人蔘養胃湯)이 혈관신생(血管新生) 억제(抑制)에 미치는 영향(影響) (Effect of Whalakyuoleyng-dan plus Yinsamyangwui-tang on Anti-angionesis)

  • 고기완;박준혁;강희;김성훈;유영법;심범상;최승훈;안규석
    • 대한한방종양학회지
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    • 제7권1호
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    • pp.77-97
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    • 2001
  • Anti-angiogenesis is one of therapies which have been high-lightened on the research of cancer treatment. Anti-angiogenesis means that new blood vessels are created from a existing capillary tube and it is a important process on metastasis and permeation when cancer is created or formed. Since angiogenesis have been under research, a complete recovery oriented treatment against cancer have been suggested blocking metastasis, delaying the growth of cancer cell, and blocking the supply of oxygen and nutritive substance through the web of blood vessels. Until now, there are several anti-angiogenesis, which have been known to the public, such as thalidomide, angiostatin, endostatin, 2-methoxyestradiol, TNP-470, and marimastat, etc. Additionally, 17 clinical testing projects about anti-angiogenesis are on the process in NCI(National Cancer Institute). Especially, TNP-470 showed effectiveness against cancer on clinical testing after finishing animal testing. Based on existing researches showing that Yinsamyangwui-tang is effective to strengthening body resistance and Whallakhyolenyng-dan effects cells on the inside of blood vessel because Whallakhyolenyng- dan restrains cell adhesion during the restraining period of a blood vessel, I tried to research the effect of Whalakhyolenyng-dan plus Yinsamyangwui-tang on angiogenesis. I made a conclusion putting into operation through using SK-Hep-1 (KCLB 30052), A549(KCLB 10185), AGS(KCLB 21739), and BCE(Bovine Capillary Endothelial Cell). Followings are the results of my experimental research: 1. According to the researching results of anti-cancer activation against cancer cell, Whallkhyoleyng dan plus Yinsamyangwui-tang decreased the number of cancer cells -- While injecting $600{\mu}g/ml$, injected groups decreased 3.1% more comparing with the contrastive group of SK-Hep-1, 49.7% more comparing with the contrastive group of A549, and 31.0% more comparing with the contrastive group of AGS. 2. According to the researching results of DNA composition effect between BCE and cancer cell, Whallakhyoleyng-dan plus Yinsamyangwui-tang reduced the rate of SK-Hep-1 synthesis inhibition by 59.1% at $600{\mu}g/ml$ intensity comparing with contrastive group; for A549, 72.6%; for AGS, 6.1%, for BCE, 28.9%. 3. According to the researching results about the effect of BCE cell to angiogenesis, angiogenesis was restrained at $400{\mu}g/ml$ intensity during 18 hours observation. 4. In the case of aortic ring assay, the half level of angiogenesis was reduced comparing with the contrastive group while injecting with $400{\mu}g/ml$ intensity; with $800{\mu}g/ml$, under 10% comparing with contrastive group; and with $1600{\mu}g/ml$, complete restrain. According to the above results, Whallakhyoleyng-dan plus Yinsamyangwui-tang was proved to have an anti-angiogenetic effects.

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