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Dimethyl Ether(DME) 연료의 분무 거동 및 미립화 특성
서현규, 박지홍, 이창식, Suh. Hyun-Kyu, Park. Ji-Hong, Lee. Chang-Sik 한국자동차공학회 한국자동차공학회논문집 8 Pages
한국자동차공학회 한국자동차공학회논문집 2007, Vol.15 No.5 30-37 (8 pages)
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커먼레일 분사장치를 이용한 Dimethyl Ether와 디젤연료의 연소특성
최욱, 이주광, 배충식, Choi. Wook, Lee. Jukwang, Bae. Choongsik 한국자동차공학회 한국자동차공학회논문집 8 Pages
한국자동차공학회 한국자동차공학회논문집 2004, Vol.12 No.6 30-37 (8 pages)
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Dimethyl Ether(DME)의 증발과 거시적 분무 특성
유준, 이주광, 배충식 한국자동차공학회 한국자동차공학회논문집 7 Pages
한국자동차공학회 한국자동차공학회논문집 2003, Vol.11 No.3 58-64 (7 pages)
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Dimethyl Ether와 디젤의 거시적 분무 특성 비교
유준, 이주광, 배충식 한국자동차공학회 한국자동차공학회논문집 8 Pages
한국자동차공학회 한국자동차공학회논문집 2002, Vol.10 No.5 73-80 (8 pages)
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COMBUSTION AND EMISSION CHARACTERISTICS OF A TURBOCHARGED DIESEL ENGINE FUELLED WITH DIMETHYL ETHER
Wu. J., Huang. Z., Qiao. X., Lu. J., Zhang. L., Zhang. J. 한국자동차공학회 International journal of automotive technology 8 Pages
한국자동차공학회 International journal of automotive technology 2006, Vol.7 No.6 645-652 (8 pages)
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담지된 SAPO-34 촉매상에서 DME(dimethyl ether) 전환 연구
이수경, 유병관, 제한솔, 류태공, 박주식, 김영호, Lee. Su-Gyung, Yoo. Byoung-Kwan, Je. Han-Sol, Ryu. Tae-Gong, Park. Chu-Sik, Kim. Young-Ho 한국수소및신에너지학회 한국수소 및 신에너지학회 논문집 8 Pages
한국수소및신에너지학회 한국수소 및 신에너지학회 논문집 2011, Vol.22 No.2 232-239 (8 pages)
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Silica막 반응기를 이용한 Dimethyl Ether 합성에 관한 연구
서봉국, 윤민영, 이규호, Sea. Bongkuk, Youn. Min-Young, Lee. Kew-Ho 한국막학회 멤브레인 8 Pages
한국막학회 멤브레인 2005, Vol.15 No.4 330-337 (8 pages)
막을 메탄을 탈수에 의한 dimethyl ether (DME) 합성 반응에 분리막 반응기로 적용하였다. Silica 전구체로서 tetraethoxysilane (TEOS)을 이용하여 초음파 분무 열분해 및 기상화학 증착법(CVD)법 등에 의해 다공성 스테인레스 스틸(SUS)에 silica 막을 합성하였다. CVD법에 의해 합성한 silica막의 수증기 투과도 및 메탄올에 대한 분리계수 상관관계 trade-off 선이 열분해 silica 막보다 높이 존재하였다. 수증기 투과도가 $1.2 imes10^{-7};mol;{cdot};m^{-2};{cdot};S^{-1};{cdot};Pa^{-1}$ 이상이고, 메탄올에 대한 분리계수가 10... -
Effect of Poly(ethylene glycol) dimethyl ether Plasticizer on Ionic Conductivity of Cross-Linked Poly[siloxane-g-oligo(ethylene oxide)] Solid Polymer Electrolytes
Kang. Yongku, Seo. Yeon-Ho, Kim. Dong-Wook, Lee. Chang-Jin 한국고분자학회 Macromolecular research 6 Pages
한국고분자학회 Macromolecular research 2004, Vol.12 No.5 431-436 (6 pages)
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Dehydration of Methanol to Dimethyl ether, Ethylene and Propylene over Silica-Doped Sulfated Zirconia
Hussain. Syed T., Mazhar. M., Gul. Sheraz, Chuang. Karl T, Sanger. Alan R. 대한화학회 Bulletin of the Korean Chemical Society 7 Pages
대한화학회 Bulletin of the Korean Chemical Society 2006, Vol.27 No.11 1844-1850 (7 pages)
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Modification of H-ZSM-5 and γ-Alumina with Formaldehyde and Its Application to the Synthesis of Dimethyl Ether from Syn-gas
Joo. Oh-Shim, Jung. Kwang-Deog, Han. Sung-Hwan 대한화학회 Bulletin of the Korean Chemical Society 3 Pages
대한화학회 Bulletin of the Korean Chemical Society 2002, Vol.23 No.8 1103-1105 (3 pages)
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Dimethyl Ether 예혼합 압축 착화 엔진에서 흡기중 CO2 농도와 흡기온도 변화가 연소에 미치는 영향
배충식, 장진영, 염기태, Bae. Choong-Sik, Jang. Jin-Young, Yeom. Ki-Tae 대한기계학회 大韓機械學會論文集. Transactions of the Korean society of mechanical engineers. B. B 8 Pages
대한기계학회 大韓機械學會論文集. Transactions of the Korean society of mechanical engineers. B. B 2007, Vol.31 No.6 514-521 (8 pages)
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Nafion/poly(ether(amino sulfone)) 산-염기 블렌드 전해질막을 이용한 디메틸 에테르 직접연료전지 특성연구
박선미, 최원춘, 남승은, 이규호, 오세용, 이창진, 강영구, Park. Sun-Mi, Choi. Won-Choon, Nam. Seung-Eun, Lee. Kew-Ho, Oh. Se-Young, Lee. Chang-Jin, Kang. Yong-Ku 한국전기화학회 전기화학회지 6 Pages
한국전기화학회 전기화학회지 2006, Vol.9 No.2 89-94 (6 pages)
Nafion/poly(ether(amino sulfone)) acid-base 블렌드 고분자 전해질 막을 제조하여 이온전도도, 디메틸 에테르(DME) 투과도를 측정하였으며 이를 이용하여 직접 DME 연료전지 특성을 연구하였다. Poly(ether(amino sulfone)) (PEAS)는 아민기의 치환도가 $0.6sim2.0$인 것을 합성하였다. Nafion/PEAS 블렌드 전해질 막은 Nafion과 PEAS를 DMF에 용해시켜서 캐스팅하는 방법으로 제조하였다. 블렌드 전해질막은 $100^{circ}C$ 이상에서도 이온전도도가 계속 증가하였다. Nafion/PEAS-0.6(85:15) 블렌드 전해질막은 $50^{circ}C$... -
In vivo metabolism of Talosin A, new isoflavonol glycoside from Kitasatospora kifunensis, in rats
Jong-Hwan Lim, In-Bae Song, Youn-Hwan Hwang, Myoung-Seok Kim, Jong-Woo Kim, Jin-Yong Kim, Joo Won Suh, Hyo-In Yun 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 2호 2 115-120 (6 pages)
The isoflavonol glycoside Talosin A, genistein (GT)-7-a-L-6- deoxy talopyranose (GT-Tal), was first isolated from the culture broth of Kitasatospora kifunensis MJM341. The aim of the present study was to evaluate the oral absorption and metabolism of the newly isolated isoflavonol glycoside, GT-Tal compared to genistin (GT-7-O-b-D-glucopyranoside; GT- Glu). Free GT-Glu and GT-Tal could not be detected prior to enzymatic hydrolysis of the corresponding conjugates in rat plasma. Following oral... -
Dendrotoxin-ĸ suppresses tumor growth induced by human lung adenocarcinoma A549 cells in nude mice
Soo Hwa Jang, Pan Dong Ryu, So Yeong Lee* 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 1호 6 35-40 (6 pages)
Voltage-gated K (Kv) channels have been considered to be a regulator of membrane potential and neuronal excitability. Recently, accumulated evidence has indicated that several Kv channel subtypes contribute to the control of cell proliferation in various types of cells and are worth noting as potential emerging molecular targets of cancer therapy. In the present study, we investigated the effects of the Kv1.1-specific blocker, dendrotoxin-ĸ (DTX-ĸ), on tumor formation induced by the human lung... -
Immunotherapy with methyl gallate, an inhibitor of Treg cell migration, enhances the anti-cancer effect of cisplatin therapy
HyunseongKim, GihyunLee, Sung-HwaSohn, ChanjuLee, JungWonKwak, HyunsuBae 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.3 5 261-268 (8 pages)
Foxp3+ CD25+CD4+ regulatory T (Treg) cells are crucial for the maintenance of immunological self-tolerance and are abundant in tumors. Most of these cells are chemo-attracted to tumor tissues and suppress anti-tumor responses inside the tumor. Currently, several cancer immunotherapies targeting Treg cells are being clinically tested. Cisplatin is one of the most potent chemotherapy drugs widely used for cancer treatment. While cisplatin is a powerful drug for the treatment of multiple cancers,... -
Comparison of electrophysiological effects of calcium channel blockers on cardiac repolarization
Hyang-AeLee, Sung-AeHyun, Sung-GurlPark, Ki-SukKim, SungJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.1 15 119-127 (9 pages)
Dihydropyridine (DHP) calcium channel blockers (CCBs) have been widely used to treat of several cardiovascular diseases. An excessive shortening of action potential duration (APD) due to the reduction of Ca2+ channel current (ICa) might increase the risk of arrhythmia. In this study we investigated the electrophysiologicaleffects of nicardipine (NIC), isradipine (ISR), and amlodipine (AML) on the cardiac APD in rabbit Purkinje fibers, voltage-gated K+ channel currents (IKr, IKs) and... -
Pitavastatin Regulates Ang II Induced Proliferation and Migration via IGFBP-5 in VSMC
YuMiHa, Ju-OckNam, YoungJinKang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.6 4 499-506 (8 pages)
Angiotensin II (Ang II), a key mediator of hypertensive, causes structural changes in the arteries (vascular remodeling), which involve alterations in cell growth, vascular smooth muscle cell (VSMC) hypertrophy. Ang II promotes fibrotic factor like IGFBP5, which mediates the profibrotic effects of Ang II in the heart and kidneys, lung and so on. The purpose of this study was to identify the signaling pathway of IGFBP5 on cell proliferation and migration of Ang II-stimulated VSMC. We have been... -
Effects of Free Anthraquinones Extract from the Rhubarb on Cell Proliferation and Accumulation of Extracellular Matrix in High Glucose Cultured-Mesangial Cells
JianyunWang, HuiFang, BingzhengDong, DongdongWang, YanLi, XiaoChen, LijuanChen, TongWei, QunliWei 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.6 2 485-489 (5 pages)
Diabetic nephropathy (DN) is the leading cause of end-stage failure of the kidney, but the efficacy of currently available strategies for the prevention of DN remains unsatisfactory. In this study, we investigated the effects of free anthraquinones (FARs) extract, which was extracted from the rhubarb and purified by macroporous resin DM130 with gradient mixtures of ethanol/water as the lelution solvents, in high glucose-cultured glomerular mesangial cells (MCs). The cell proliferation was... -
Murrayafoline A Induces a G0/G1-Phase Arrest in Platelet-Derived Growth Factor-Stimulated Vascular Smooth Muscle Cells
Joo-HuiHan, YohanKim, Sang-HyukJung, Jung-JinLee, Hyun-SooPark, Gyu-YongSong, NguyenManhCuong, YoungHoKim, Chang-SeonMyung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.5 4 421-426 (6 pages)
The increased potential for vascular smooth muscle cell (VSMC) growth is a key abnormality in the development of atherosclerosis and post-angioplasty restenosis. Abnormally high activity of plate-let-derived growth factor (PDGF) is believed to play a central role in the etiology of these pathophy-siological situations. Here, we investigated the anti-proliferative effects and possible mechanism(s) of murrayafoline A, a carbazole alkaloid isolated from Glycosmis stenocarpa Guillamin (Rutaceae), on... -
Scant Extracellular NAD Cleaving Activity of Human Neutrophils is Down-Regulated by fMLP via FPRL1
Md.AshrafulHasan, Md.TipuSultan, Won-GyunAhn, Yeon-JaKim, Ji-HyeJang, Chang-WonHong, Dong-KeunSong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.6 8 497-502 (6 pages)
Extracellular nicotinamide adenine dinucleotide (NAD) cleaving activity of a particular cell type determines the rate of the degradation of extracellular NAD with formation of metabolites in the vicinity of the plasma membrane, which has important physiological consequences. It is yet to be elucidated whether intact human neutrophils have any extracellular NAD cleaving activity. In this study, with a simple fluorometric assay utilizing 1,N6-ethenoadenine dinucleotide (etheno-NAD) as the... -
Spontaneous Electrical Activity of Cultured Interstitial Cells of Cajal from Mouse Urinary Bladder
Sun-OuckKim, Han-SeongJeong, SujeongJang, Mei-JinWu, JongKyuPark, Han-YiJiao, JaeYeoulJun, Jong-SeongPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.6 9 531-536 (6 pages)
Interstitial cells of Cajal (ICCs) from the urinary bladder regulate detrusor smooth muscle activities. We cultured ICCs from the urinary bladder of mice and performed patch clamp and intracellular Ca2+ ([Ca2+]i) imaging to investigate whether cultured ICCs can be a valuable tool for cellular functional studies. The cultured ICCs displayed two types of spontaneous electrical activities which are similar to those recorded in intact bladder tissues. Spontaneous electrical activities of cultured... -
Gastroprotective Effect of the Three Glucuronopyranoside Flavo-noids in Rats
WiJoonIm, YoonjinNam, SunYoungPark, UyDongSohn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.5 5 411-415 (5 pages)
In this study, we investigated the protective action of glucuronopyranoside flavonoids (QGC, AGC, LGC) on gastritis in rats. QGC, AGC and omeprazole decreased the gastric volume significantly, and each ID50 was 0.75, 0.54 and 8.5 mg/kg, respectively, thus the order of potency was AGC, QGC and omeprazole. They also decreased acid output, and each ID50 was 7.81, 0.58 and 6.71 mg/kg, respectively, thus the order of potency was AGC, omeprazole and QGC. They inhibited gastritis induced by... -
A Computational Model of Cytosolic and Mitochondrial [Ca2＋] in Paced Rat Ventricular Myocytes
JaeBoumYoum, SeongWooChoi, ChangHanJang, HyoungKyuKim, ChaeHunLeem, NariKim, JinHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 23 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.4 5 217-239 (23 pages)
We carried out a series of experiment demonstrating the role of mitochondria in the cytosolic and mitochondrial Ca2＋ transients and compared the results with those from computer simulation. In rat ventricular myocytes, increasing the rate of stimulation (1∼3 Hz) made both the diastolic and systolic [Ca2＋] bigger in mitochondria as well as in cytosol. As L-type Ca2＋ channel has key influence on the amplitude of Ca2＋-induced Ca2＋ release, the relation between stimulus frequency and the... -
Modulation of Presynaptic GABA Release by Oxidative Stress in Mechanically-isolated Rat Cerebral Cortical Neurons
Eu-TeumHahm, Jung-WooSeo, JinyoungHur, Young-WukCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.3 2 127-132 (6 pages)
Reactive oxygen species (ROS), which include hydrogen peroxide (H2O2), the superoxide anion (O2−·), and the hydroxyl radical (OH·), are generated as by-products of oxidative metabolism in cells. The cerebral cortex has been found to be particularly vulnerable to production of ROS associated with conditions such as ischemia-reperfusion, Parkinson's disease, and aging. To investigate the effect of ROS on inhibitory GABAergic synaptic transmission, we examined the electrophysiological... -
Nitric Oxide Modulation of GABAergic Synaptic Transmission in Mechanically Isolated Rat Auditory Cortical Neurons
Jong-JuLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.6 9 461-467 (7 pages)
The auditory cortex (A1) encodes the acquired significance of sound for the perception and interpretation of sound. Nitric oxide (NO) is a gas molecule with free radical properties that functions as a transmitter molecule and can alter neural activity without direct synaptic connections. We used whole-cell recordings under voltage clamp to investigate the effect of NO on spontaneous GABAergic synaptic transmission in mechanically isolated rat auditory cortical neurons preserving functional... -
The Inhibitory Effect of Quercetin-3-O-β-D-Glucuronopyranoside on Gastritis and Reflux Esophagitis in Rats
YoungSilMin, SeEunLee, SeungTaeHong, HyunSikKim, Byung-ChulChoi, SangSooSim, WanKyunWhang, UyDongSohn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.4 5 295-300 (6 pages)
It was evaluated the inhibitory action of quercetin-3-O-Ղ-D-glucuronopyranoside (QGC) on reflux esophagitis and gastritis in rats. QGC was isolated from the herba of Rumex Aquaticus. Reflux esophagitis or gastritis was induced surgically or by administering indomethacin, respectively. Oral QGC decreased ulcer index, injury area, gastric volume, and acid output and increased gastric pH as compared with quercetin. Furthermore, QGC significantly decreased gastric lesion sizes induced by... -
(? )-Epigallocatechin Gallate Inhibits the Pacemaker Activity of Interstitial Cells of Cajal of Mouse Small Intestine
KweonYoungKim, SooJinChoi, HyukJinJang, DongChuanZuo, PawanKumarShahi, ShankarPrasadParajuli, CheolHoYeum, PyungJinYoon, SeokChoi, JaeYeo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.3 4 111-116 (6 pages)
The effects of (−)-epigallocatechin gallate (EGCG) on pacemaker activities of cultured interstitial cells of Cajal (ICC) from murine small intestine were investigated using whole-cell patch-clamp technique at 30oC and Ca2＋ image analysis. ICC generated spontaneous pacemaker currents at a holding potential of −70 mV. The treatment of ICC with EGCG resulted in a dose-dependent decrease in the frequency and amplitude of pacemaker currents. SQ-22536, an adenylate cyclase inhibitor, and... -
Glycyrrhizin Attenuates MPTP Neurotoxicity in Mouse and MPP+-Induced Cell Death in PC12 Cells
YunJeongKim, ChungSooLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.2 5 65-72 (8 pages)
The present study examined the inhibitory effect of licorice compounds glycyrrhizin and a metabolite 18Ղ-glycyrrhetinic acid on the neurotoxicity of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) in the mouse and on the 1-methyl-4-phenylpyridinium (MPP+)-induced cell death in differentiated PC12 cells. MPTP treatment increased the activities of total superoxide dismutase, catalase and glutathione peroxidase and the levels of malondialdehyde and carbonyls in the brain compared to... -
Promoting Effect of Hydrogen Peroxide on 1-Methyl-4-phenylpyridinium-induced Mitochondrial Dysfunction and Cell Death in PC12 Cells
DongHeeLee, ChungSooLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.1 9 51-57 (7 pages)
The promoting effect of hydrogen peroxide (H2O2) against the cytotoxicity of 1-methyl-4-phenylpyridinium (MPP) in differentiated PC12 cells was assessed by measuring the effect on the mitochondrial membrane permeability. Treatment of PC12 cells with MPP resulted in the nuclear damage, decrease in the mitochondrial transmembrane potential, cytosolic accumulation of cytochrome c, activation of caspase-3, increase in the formation of reactive oxygen species (ROS) and depletion of GSH.... -
Stretch-activated K+ Channels in Rat Atrial Myocytes
JaeBoumYoum 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.6 8 341-318 (8 pages)
Mechanical stimuli to the cardiac myocytes initiate many biochemical and physiological events. Stretch-activated cation channels have been suggested to mediate these events. In this study, cell-attached and inside-out excised-patch clamp methods were used to identify stretch-activated cation channels in adult rat atrial myocytes. Channel openings were increased in cell-attached configuration when negative pressure was applied to the pipette, and also in inside-out excised patches by negative... -
Activation of ATP-sensitive Potassium Channels by the Predominant Metabolite of Isoflurane in Rabbit Ventricular Myocytes
JinHan, NariKim, EuiyongKim, SungjuKim, KangheeCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.2 7 165-175 (11 pages)
Background: Recent in vivo experimental evidence suggests that isoflurane-induced cardioprotection may involve KATP channel activation. However, it was demonstrated that isoflurane inhibited KATP channel activities in the inside-out patch mode. To explain this discrepancy, the present investigation tested the hypothesis that a metabolite of isoflurane, trifluoroacetic acid (TFA), contributes to isoflurnae-induced cardioprotection via KATP channel activation during myocardial ischemia and... -
Enhanced Expression of Inducible Nitric Oxide Synthase May Be Responsible for Altered Vascular Reactivity in Streptozotocin-induced Diabetic Rats
JaeKwonJang, YoungJinKang, HanGeukSeo, SookJaeSeo, KiChurlChang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.4 2 375-382 (8 pages)
Growing evidence indicates that enhanced generation or actions of nitric oxide (NO) are implicated in the pathogenesis of hypertension in spontaneously hypertensive rats and diabetic nephropathy in streptozotocin (STZ)-induced diabetic rats. We investigated whether inducible nitric oxide synthase (iNOS) expression in STZ-induced diabetic rats is responsible for the alterations of vascular reactivity. Diabetic state was confirmed 28 days after injection of STZ (i.p) in rats by measuring blood... -
뇌허혈 손상에 있어서 해마-세포외액내 Glutamate와 Polyamine 농도의 변동에 관한 연구
신경호(Kyung-Ho Shin), 김형건(Hyung-Gun Kim), 최상현(Sang-Hyun Choi), 조소현(So-Hyun Cho), 천연숙(Yeon-Sook Chun), 전보권(Boe-Gwun Chun) 대한약리학회 대한약리학잡지 18 Pages
대한약리학회 대한약리학잡지 1994, 제 30권 제 3호 2 273-290 (18 pages)
뇌-허혈후 나타나는 신경세포의 손상에 glutamate의 과다한 유리와 그의 N-methyl-D-aspartate (NMDA) 수용체: calcium 통로 활성작용 및 polyamine중 putrescine의 증가로 인한 신경세포내 [Ca2+]의 상승과 관련 있다는 보고들이 있다. 본 연구에서는 Mongolian gerbil에서 5분간 경동맥을 차단하여 뇌-허혈을 가한후 재관류시 해마의 세포외액내 polyamine, glutamate, acetylcholine농도, 해마의 [3H]MK-801 결합능의 변동 및 해마조직소견의 변동에 미치는 비가역성 ornithine decarboxylase (ODC) 억제제인 difluoromethylornithine... -
백서의 조건회피반응-유지에 대한 경련성 전기충격의 저해작용에 미치는 CDP-Choline, Aminoguanidine, 및 Difluoromethylornithine의 영향에 관한 연구 : 뇌내 Acetylcholine과 Polyamine 함량-변동에 연관하여
김형건(Hyung-Gun Kim), 김창현(Chang-Hyun Kim), 최상현(Sang-Hyun Choi), 임숙영(Suk-Young Ihm), 이민수(Min-Soo Lee), 전보권(Boe-Gwun Chun) 대한약리학회 대한약리학잡지 14 Pages
대한약리학회 대한약리학잡지 1992, 제 28권 제 2호 1 115-128 (14 pages)
Two-way shuttle box에서 active conditioned response (ACR)을 10일간 매일 30회 부하하여 10회 이상 반응한 웅성 Wistar 백서를 이용하여, 경련성 전기충격 (ECS: 50 mA, 100 Hz, 1.5 sec)에 의한 ACR-유지의 변동에 미치는 CDP-choline (250 mg/kg/day/CC), aminoguanidine (100 mg/kg/day: AG), α-difluoromethylornithine (250 mg/kg/day, DO), 및 spermine (10/mg/kg/day: SM) 각각의 10일간 복강내-주사의 영향을 검토하였다. 그 결과, 10일간 획득된 ACR은 그 다음 10일후에 더욱 증가되었으며, 이는 일일 간격의 5회 ECS... -
Fe2+에 의한 지질 과산화에 있어서 Quercetin과 Rutin의 억제 작용
정진희(Jin-Hee Chung), 이정수(Chung-Soo Lee), 신용규(Yong-Kyoo Shin), 이광수(Kwang-Soo Lee) 대한약리학회 대한약리학잡지 12 Pages
대한약리학회 대한약리학잡지 1991, 제 27권 제 1호 8 69-80 (12 pages)
Iron(II)에 의한 마이크로좀의 지질 과산화에 미치는 quercetin과 rutin의 억제 효과를 iron의 산화중에서 생성되는 산소 라디칼에 대한 제거 작용과 iron에 대한 킬레이트 작용에 관하여 관찰하였다. Fe2+ 단독에 의한 지질 과산화는 quercetin 또는 rutin에 의하여 용량에 따라 현저하게 억제되었다. Fe2+의 존재하에서 ascorbate또는 NADPH에 의한 지질 과산화는 quercetin과 rutin에 의하여 거의 완전히 억제되었다. Fe2+의 과산화 작용은 SOD와 DABCO에 의하여 억제되었고 catalase, DMSO와 mannitol에 의하여 약간 억제되었다....
