자료유형
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전체 선택해제
총 190건 검색
본문검색 결과만 보기
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The Effect of LidocaineㆍHCl on the Fluidity of Native and Model Membrane Lipid Bilayers
Jun-SeopPark, Tae-SangJung, Yang-HoNoh, Woo-SungKim, Won-IckPark, Young-SooKim, In-KyoChung, UyDongSohn, Soo-KyungBae, Moon-KyoungBae, Hye 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.6 7 413-422 (10 pages)
on the inner monolayer than the outer monolayer. LidocaineㆍHCl increased annular lipid fluidity in SPMV lipid bilayers. It also caused membrane proteins to cluster. The most important finding of this study is that there is far greater increase in annular lipid fluidity than that in lateral and rotational mobilities by lidocaineㆍHCl. LidocaineㆍHCl alters the stereo or dynamics of the proteins in the lipid bilayers by combining with lipids, especially with the annular lipids. In conclusion, the... -
Fluidity and Mechanical Properties of Open Cell AZ31 Mg Alloy Foam
Yue. Xue-Zheng, Hur. Bo-Young 한국주조공학회 한국주조공학회지 7 Pages
한국주조공학회 한국주조공학회지 2012, Vol.32 No.3 150-156 (7 pages)
발포금속은 초경량 재료로서 폐기공과 개기공의 두 가지 형태의 구조를 지니고 있으며 폐기공은 내충격성, 흡음성, 단열성의 기능을 지니고 있고, 개기공은 필터, 생체지지대, 촉매재, 열방출재 등으로 사용되고 있다. 개기공발포재는 삼차원 구조모양으로 프리커서를 이용한 압력정밀주조나 기공입자용출법으로 제조하고 있으나 기공의 크기나 셀의 형상, 두께 등을 조절하기에 어려움이 있다. 이를 해결하기 위하여 환경친화적인 펄라이트를 사용하여 목적하는 크기의 그래뉼을 제조한 후, 용융마그네슘합금을 감압주조법으로 주조하여... -
Measurement of membrane fluidity of rockfish (Sebastes schlegeli) phagocytes during the respiratory burst using fluorescence polarization assay
Jung. Jae-Hyuck, Kwon. Se-Ryun, Lee. Eun-Hye, Kim. Sung-Mi, Kim. Ki-Hong 한국어병학회 韓國魚病學會誌= Journal of fish pathology 4 Pages
한국어병학회 韓國魚病學會誌= Journal of fish pathology 2003, Vol.16 No.2 131-134 (4 pages)
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Selective Toxicity of Ginsenoside $Rg_3$ on Multidrug Resistant Cells by Membrane Fluidity Modulation
Kwon. Hyog-Young, Kim. Eun-Hye, Kim. Seung-Whan, Kim. Su-Nam, Park. Jong-Dae, Rhee. Dong-Kwon 대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 7 Pages
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 2008, Vol.31 No.2 171-177 (7 pages)
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Effect of phosphorus deficiency on erythrocytic morphology and function in cows
Ziwei Zhang, Mingyu Bi, Jie Yang, Haidong Yao, Zhonghua Liu, Shiwen Xu 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 3호 10 333-340 (8 pages)
lower, while the malondialdehyde content was greater, in P-deficient cows than in control diet-fed cows. Na/K-ATPase and Mg-ATPase activities were lower in P-deficient cows than in control diet-fed cows; however, Ca-ATPase activity was not significantly different. The phospholipid composition of the erythrocyte membrane changed and membrane fluidity rigidified in P-deficient cows. The results indicate that P deficiency might impair erythrocyte integrity and functional characteristics in cows. -
Agmatine protection against chlorpromazine-induced forebrain cortex injury in rats
Bratislav Dejanovic, Ivana Stevanovic, Milica Ninkovic, Ivana Stojanovic, Irena Lavrnja, Tatjana Radicevic, Milos Pavlovic 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 1호 7 53-61 (9 pages)
This study was conducted to investigate whether agmatine (AGM) provides protection against oxidative stress induced by treatment with chlorpromazine (CPZ) in Wistar rats. In addition, the role of reactive oxygen species and efficiency of antioxidant protection in the brain homogenates of forebrain cortexes prepared 48 h after treatment were investigated. Chlorpromazine was applied intraperitoneally (i.p.) in single dose of 38.7 mg/kg body weight (BW) The second group was treated with both CPZ... -
Exendin-4 improves resistance to Listeria monocytogenes infection in diabetic db/db mice
Hsien Yueh Liu, Chih-Yao Chung, Wen-Chin Yang, Chih-Lung Liang, Chi-Young Wang, Chih-Yu Chang, Cicero Lee-Tian Chang* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 3호 5 245-252 (8 pages)
The incidence of diabetes mellitus is increasing among companion animals. This disease has similar characteristics in both humans and animals. Diabetes is frequently identified as an independent risk factor for infections associated with increased mortality. In the present study, homozygous diabetic (db/db) mice were infected with Listeria (L.) monocytogenes and then treated with the anti-diabetic drug exendin-4, a glucagon-like peptide 1 analogue. In aged db/db mice, decreased CD11b macrophage... -
A comparative study of Sephadex, glass wool and Percoll separation techniques on sperm quality and IVF results for cryopreserved bovine semen
Hae-Lee Lee, Sue-Hee Kim, Dong-Beom Ji, Yong-Jun Kim* 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2009, 제 10권 제 3호 11 249-255 (7 pages)
The aim of this study was to compare the effects of spermatozoa separation techniques on sperm quality and in-vitro fertilization (IVF) results for cryopreserved bovine semen. Sephadex, glass wool and Percoll gradient separation techniques were used for sperm separation and sperm motility, morphology and membrane integrity were evaluated before and after separation. Also, cleavage and blastocyst developmental rate were investigated after IVF with sperm recovered by each separation technique. The... -
Effects of L-NAME, a non-specific nitric oxide synthase inhibitor, on AlCl3-induced toxicity in the rat forebrain cortex
Ivana D. Stevanović*, Marina D. Jovanović, Ankica Jelenković, Miodrag Čolić, Ivana Stojanović, Mil 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2009, 제 10권 제 1호 3 15-22 (8 pages)
The present experiments were done to determine the effectiveness of a non-specific nitric oxide synthase inhibitor, N-nitro-L-arginine methyl ester (L-NAME), on oxidative stress parameters induced by aluminium chloride (AlCl3) intrahippocampal injections in Wistar rats. Animals were sacrificed 3 h and 30 d after treatments, heads were immediately frozen in liquid nitrogen and forebrain cortices were removed. Crude mitochondrial fraction preparations of forebrain cortices were used for the... -
The radioprotective effects of the hexane and ethyl acetate extracts of Callophyllis japonica in mice that undergo whole body irradiation
Jeongtae Kim, Changjong Moon, Heechul Kim, Jinwoo Jeong, Juyeon Lee, Jihoon Kim, Jin Won Hyun, Jae Woo Park, Mi Yeon Moon, Nam H 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 3호 8 281-284 (4 pages)
The radioprotective activity of extracts from the red seaweed Callophyllis (C.) japonica was investigated in mice that underwent whole-body exposure to gamma radiation. A methanol extract of C. japonica and its fractions [hexane, ethyl acetate (EtOAc), butanol and the remaining H2O] were used. Each fraction (100 mg/kg body weight) was administered intraperitoneally (i.p.) 2 times into the BALB/c mice, once at 1 and once at 24 h before exposure to 9 Gray (Gy) of gamma radiation. Pre-irradiation... -
여창 가곡 반엽 ‘남하여’ 연주에서의 박의 미시적 타이밍의 변화에 관한 연구
이미경, 송현주 한국음악교육공학회 음악교육공학 21 Pages
한국음악교육공학회 음악교육공학 2020, 제 42호 4 67-87 (21 pages)
반엽은 가곡 중 한 곡 내에서 한배와 선법이 다른 두 부분으로 구성된 악곡이다. 그래서 이 악곡은 한배의 변화에 따라 박의 미시적 타이밍이 어떤 양상으로 달라지는지를 관찰할 수 있는 곡이다. 본 연구에서는 반엽 중 여창이 부르는 ‘남하여’ 의 연주(창과 대금, 거문고, 장구반주)에서 이 과정을 관찰하고자 하였다. 박의 미시적 타이밍은 장구의 타점들 간의 간격(IOI)으로 측정하였으며 같은 연주자의 3번의 연주를 비교하여 시간적 강세의 위치가 어떻게 나타나는지를 관찰하였다. 연구의 결과, 첫째, 한배가 빠른 부분에서는... -
대사증후군 개선을 위한 뽕잎, 오디, 누에 분말의 혼합 비율 최적화
김민주, 김현숙, 김애정 한방비만학회 대한한방비만학회지 13 Pages
한방비만학회 대한한방비만학회지 2018, 제 18권 제 2호 4 83-95 (13 pages)
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리듬 학습을 위한 \/자 리듬 표기법 개발 연구
한국음악교육학회 음악교육연구 2022, 제 51권 제 4호 4 77-117 (41 pages)
연구의 목적은 리듬 학습에 유용한 \/자 리듬 표기법을 개발하는 것이다. 연구를 통해 초등학교 교과서에 제시되는 악곡의 리듬을 표기할 수 있는 \/자 리듬 표기법을 개발하고, 전문가의 의견을 모아 보완하고, 예비교사를 대상으로 하는 수업에 적용하여 표기법을 개선하여 완성도를 높였다. 리듬 표기법 수업을 받은 예비교사를 대상으로 이해도 평가를 하고 면담하여 그 유용성을 조사하였다. 유용성 조사를 통해, 이 연구에서 개발한 \/자 리듬 표기법은 표기 원칙이 단순하기 때문에 짧은 시간에 표기법을 익힐 수 있고, 리듬을... -
Distinct Cellular Calcium Metabolism in Radiation-sensitive RKO Human Colorectal Cancer Cells
YunTaiKim, SooShinJo, YoungJunPark, MyungZaLee, ChangKookSuh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.6 10 509-516 (8 pages)
Radiation therapy for variety of human solid tumors utilizes mechanism of cell death after DNA damage caused by radiation. In response to DNA damage, cytochrome c was released from mitochondria by activation of pro-apoptotic Bcl-2 family proteins, and then elicits massive Ca2＋ release from the ER that lead to cell death. It was also suggested that irradiation may cause the deregulation of Ca2＋ homeostasis and trigger programmed cell death and regulate death specific enzymes. Thus, in this... -
Aortic Remodelling in Chronic Nicotine-Administered Rat
SatirahZainalabidin, SitiBalkisBudin, AnRamalingam, YiChengLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.5 9 411-418 (8 pages)
Vascular remodelling is an adaptive mechanism, which counteracts pressure changes in blood circulation. Nicotine content in cigarette increases the risk of hypertension. The exact relationship between nicotine and vascular remodelling still remain unknown. Current study was aimed to determine the effect of clinically relevant dosage of nicotine (equivalent to light smoker) on aortic reactivity, oxidative stress markers and histomorphological changes. Twelve age-matched male Sprague-Dawley rats... -
Effects of Lubiprostone on Pacemaker Activity of Interstitial Cells of Cajal from the Mouse Colon
Han-YiJiao, DongHyunKim, JungSukKi, KwonHoRyu, SeokChoi, JaeYeoulJun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.4 9 341-346 (6 pages)
Lubiprostone is a chloride (Cl−) channel activator derived from prostaglandin E1 and used for managing constipation. In addition, lubiprostone affects the activity of gastrointestinal smooth muscles. Interstitial cells of Cajal (ICCs) are pacemaker cells that generate slow-wave activity in smooth muscles. We studied the effects of lubiprostone on the pacemaker potentials of colonic ICCs. We used the whole-cell patch-clamp technique to determine the pacemaker activity in cultured colonic... -
Effect of Neurosteroid Modulation on Global Ischaemia-Reperfusion-Induced Cerebral Injury in Mice
AmarjotKaurGrewal, AmteshwarSinghJaggi, AvtarChRana, NirmalSingh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.6 2 485-492 (8 pages)
The present study was designed to investigate the putative effect of neurosteroid modulation on global ischaemia-reperfusion-induced cerebral injury in mice. Bilateral carotid artery occlusion followed by reperfusion, produced a significant rise in cerebral infarct size along with impairment of grip strength and motor coordination in Swiss albino mice. Administration of carbamazepine (16 mg/kg, i.p.) before global cerebral ischaemia significantly attenuated cerebral infarct size and improved the... -
Decreasing Effect of LidocaineㆍHCl on the Thickness of the Neuronal and Model Membrane
Sung-MinPark, Jong-SunPark, Jae-HanKim, Jin-HyunBaek, Tae-GyunYoon, Do-KeunLee, Won-HyangRyu, In-KyoChung, UyDongSohn, Hye-OckJang, IlYun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.4 1 253-257 (5 pages)
This study examined the mechanism of action of a local anesthetic, lidocaineㆍHCl. Energy transfer between the surface fluorescent probe, 1-anilinonaphthalene-8-sulfonic acid, and the hydrophobic fluorescent probe, 1,3-di(1-pyrenyl) propane, was used to determine the effect of lidocaineㆍHCl on the thickness (D) of the synaptosomal plasma membrane vesicles (SPMV) isolated from the bovine cerebral cortex, and liposomes of the total lipids (SPMVTL) and phospholipids (SPMVPL) extracted from the... -
The Effect of Methanol on the Structural Parameters of Neuronal Membrane Lipid Bilayers
Hyung-JinJoo, Shin-HoAhn, Hang-RaeLee, Sung-WooJung, Chang-WonChoi, Min-SeokKim, Moon-KyoungBae, In-KyoChung, Soo-KyoungBae, Hye-OckJang, 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.4 5 255-264 (10 pages)
of the outer monolayers. Furthermore, the methanol increased annular lipid fluidity and also caused membrane proteins to cluster. The important finding is that was far greater increase by methanol in annular lipid fluidity than increase in lateral and rotational mobilities by the methanol. Methanol alters the stereo or dynamics of the proteins in the lipid bilayers by combining with lipids, especially with the annular lipids. In conclusion, the present data suggest that methanol, in additions to... -
Role of Caveolin-1 in Indomethacin-induced Death of Human Hepatoadenocarcinoma SK-Hep1 Cells
Kyung-NamKim, Ju-HeeKang, Sung-VinYim, Chang-ShinPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.4 3 143-148 (6 pages)
Caveolin-1 (CAV1) is an integral membrane protein that may function as a scaffold for plasma membrane proteins and acts as a tumor suppressor protein. One causative factor of chemotherapy- resistant cancers is P-plycoprotein (P-gp), the product of the multidrug resistance-1 gene (MDR1), which is localized in the caveolar structure. Currently, the interactive roles of CAV1 and MDR1 expression in the death of cancer cells remain controversial. In this study, we investigated the effects of... -
Effect of Rosiglitazone on Myocardial Ischemia-Reperfusion Injury in Rat Heart
Ki-ChanHa 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.4 3 181-186 (6 pages)
This study was undertaken to evaluate whether peroxisome proliferator-activated-receptor-gamma (PPAR-γ) agonist-rosiglitazone (ROSI) induces postischemic functional recovery in Langendorf heart model. Hearts isolated from normal rats were subjected to 20 min of normoxia or 25 min zero-flow ischemia followed by 50 min reperfusion. In this acute protocol, ROSI (20μg/ml) administered 10 min before ischemia had no effect on hemodynamic cardiac function, but had protective effect on lipid... -
Effects of Chlorhexidine digluconate on Rotational Rate of n-(9-Anthroyloxy)stearic acid in Model Membranes of Total Lipids Extracted from Porphyromonas gingivalis Outer Membranes
Hye-OckJang, Dong-WonKim, Byeong-IllKim, Hong-GuSim, Young-HoLee, Jong-HwaLee, Jung-HaBae, Moon-KyoungBae, Tae-HyukKwon, IlYun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.2 3 83-88 (6 pages)
The purpose of this study was to provide a basis for studying the molecular mechanism of pharmacological action of chlorhexidine digluconate. Large unilamellar vesicles (OPGTL) were prepared with total lipids extracted from cultured Porphyromonas gingivalis outer membranes (OPG). The anthroyloxy probes were located at a graded series of depths inside a membrane, depending on its substitution position (n) in the aliphatic chain. Fluorescence polarization of n-(9-anthroyloxy)stearic acid was used... -
Effects of Chlorhexidine Digluconate on Rotational Rate of n-(9-Anthroyloxy)stearic Acid in Porphyromonas ginginvalis Outer Membranes
Hye-OckJang, Seong-KweonCha, ChangLee, Min-GakChoi, Sung-RyulHuh, Sang-HunShin, In-KyoChung, IlYun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.3 2 125-130 (6 pages)
12, and 16-(9-anthroyloxy)stearic acid (2-AS, 3-AS, 6-AS, 9-AS, 12-AS and 16-AP) probes, indicating different membrane fluidity. Chlorhexidine digluconate increased the rate of rotational mobility of hydrocarbon interior of the cultured Porphyromonas gingivalis outer membranes (OPG) in a dose-dependent manner, but decreased the mobility of surface region (membrane interface) of the OPG. Disordering or ordering effects of chlorhexidine digluconate on membrane lipids may be responsible for some,... -
Effects of Local Anesthetics on Rotational Mobility of n-(9-Anthroyloxy)stearic Acid in Neuronal Membranes
Hye-OckJang, ChangLee, Min-GakChoi, Sang-HunShin, In-KyoChung, IlYun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.3 1 119-124 (6 pages)
in the membrane fluidity might be present. Degrees of the rotational mobility of 3-AS, 6-AS, 9-AS and 16-AP were different depending on depth of hydrocarbon interior. In a dose-dependent manner, tetracaine, bupivacaine, lidocaine, prilocaine and procaine decreased anisotropy of 3-AS, 6-AS, 9-AS and 16-AP in the hydrocarbon interior of the SPMV. These results indicate that local anesthetics have significant disordering effects on hydrocarbon interior of the SPMV, thus affecting the transport of... -
Dietary Ascorbate Supplementation Reduces Oxidative Tissue Damage and Expression of iNOS in the Kidney of Streptozotocin Induced Diabetic Rats
MyungSeoupChoi, YoonYoungJang, WooSeungLee, JinHoSong, YongKyooShin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.1 8 39-45 (7 pages)
Reactive oxygen species (ROS) have been suggested to be contributory factors in complications of diabetes mellitus. In the present study, we investigated the generation of superoxide, the lipid peroxide level measured as thiobarbituric acid reactive substances, the vasorelaxation of isolated thoracic aorta and the iNOS expression in kidney of streptozotocin induced diabetic rats. Sprague Dawley rats were divided into four groups: control, ascorbate (400 mg/kg rat weight daily in drinking water),... -
Different Effects of Dopamine on Differential Rotational Mobility between Inner and Outer Monolayer of Synaptosomal Plasma Membrane Vesicles Isolated from Bovine Brain
Hyun-GangKim, Chang-HwaChoi, Inn-SeKim, In-KyoChung, Goon-JaeCho, Hye-OckJang6, IlYun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.5 10 409-415 (7 pages)
Fluorescence polarization of 1,6-diphenyl-1,3,5-hexatriene (DPH) was used to evaluate the effects of dopamine·HCl on the range of the rotatioanl mobility of bulk bilayer structure of the synaptosomal plasma membrane vesicles (SPMV) isolated from whole bovine brain. In a dose-dependent manner, dopamine decreased the anisotropy (γ), limiting anisotropy (γ∞) and order parameter (S) of DPH in the membranes. These indicate that dopamine increased the rotational mobility of the probe in the... -
Effect of Lidocaine·HCl on Microviscosity of Phosphatidylcholine Model Membrane
In-KyoChung, Inn-SeKim, Chang-HwaChoi, Goon-JaeCho, Jin-BomKim, Woo-SungSon6, Hye-OckJang7, IlYun8 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.3 9 243-251 (9 pages)
In order to provide a basis for studying the molecular mechanism of pharmacological action of local anesthetics and to develop a fluorescence spectroscopic method which can detect the microviscosity of native and model membranes using intramolecular excimerization of 1,3-di(l-pyrenyl)propane (Py-3-Py), we examined the effect of lidocaine·HCl on the microviscosity of model membranes of phosphatidylcholine fraction extracted from synaptosomal plasma membrane vesicles (SPMVPC). The excimer to... -
Differential Effects of Local Anesthetics on Rate of Rotational Mobility between Hydrocarbon Interior and Surface Region of Model Membrane Outer Monolayer
In-KyoChung, Seong-KweonCha, Yong-ZaChung, Bong-SunKim, Chang-HwaChoi, Goon-JaeCho6, Hye-OckJang7, IlYun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.1 6 41-46 (6 pages)
Using fluorescence polarization of 12-(9-anthroyloxy)stearic acid (12-AS) and 2-(9-anthroyloxy)stearic acid (2-AS), we evaluated the differential effects of local anesthetics on differential rotational rate between the surface (in carbon number 2 and its surroundings including the head group) and the hydrocarbon interior (in carbon number 12 and its surroundings) of the outer monolayer of the total lipid fraction liposome extracted from synaptosomal plasma membrane vesicles. The anisotropy (r)... -
Effect of Ethanol on Na+-Pi Uptake in Opossum Kidney Cells Role of Membrane Fluidization and Reactive Oxygen Species
InHoPark, MoonYoungHwang, JaeSukWoo, JinSupJung, YongKeunKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.5 10 529-538 (10 pages)
This study was undertaken to examine the effect of ethanol on Na-dependent phosphate (Na-Pi) uptake in opossum kidney (OK) cells, an established renal proximal tubular cell line. Ethanol inhibited Na-dependent component of phosphate uptake in a dose-dependent manner with I50 of 8.4%, but it did not affect Na-independent component. Similarly, ethanol inhibited Na-dependent uptakes of glucose and amino acids (AIB, glycine, alanine, and leucine). Microsomal... -
Changes in Phosphate Transporter Activity Evaluated by Phosphonoformic Acid Binding in Cadmium-Exposed Renal Brush-Border Membranes
JinMoChung, DoWhanAhn, KyoungRyongKim, YangSaengPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.5 8 513-519 (7 pages)
medium, but it showed no apparent effect on the Pi-protectable PFA binding. These results indicate that an interaction of renal BBM with free Cd induces a reduction in Na-Pi cotransport activity without altering the carrier density in the membrane. This, in turn, suggest that the suppression of phosphate transport capacity (Vmax) observed in Cd-treated renal BBM is due to a reduction in Na-Pi translocation by existing carriers, possibly by Cd-induced fall in membrane fluidity. -
Effects of Ethanol on Na+-dependent Solute Uptake in Rabbit Renal Brush-Border Membrane Vesicles
YongKeunKim, SunHeeKo, JaeSukWoo, JinSupJung, SangHoLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.2 9 191-198 (8 pages)
This study was undertaken to examine the effect of ethanol on Na-dependent transport systems (glucose, phosphate, and dicarboxylate) in renal brush-border membrane vesicles (BBMV). Ethanol inhibited Na- dependent uptakes of glucose, phosphate, and succinate in a dose-dependent manner, but not the uptakes of Na-independent. The H/TEA antiport was reduced by 8% ethanol. Kinetic analysis showed that ethanol caused a decrease in Vmax of three transport systems, leaving... -
Simultaneous HPLC Analysis of Arachidonic Acid Metabolites in Biological Samples with Simple Solid Phase Extraction
Hyung-GunKim, Young-NaHuh, Kun-SukPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.6 15 779-786 (8 pages)
A reversed-phase high-performance liquid chromatogrphy (RP-HPLC) has been developed to analyze the metabolites of arachidonic acid based on the specificities of ultraviolet absorption of these various metabolites and is sensitive to the nanogram level. This procedure makes it possible to extract complex mixtures of eicosanoids efficiently with a single step and to analyze them simultaneously by RP-HPLC from biological samples using octadesylsilyl silica extraction column and PGB2 as an internal... -
Increased Activity of Large Conductance Ca2+-Activated K+ Channels in Negatively-Charged Lipid Membranes
JinBongParkPanDongRyu 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.4 15 529-539 (11 pages)
addition, similar insulation distance (7∼9 Å) of channel mouth from the bilayer surface charge was predicted by a 3-barrier-2-site model of energy profile for the permeation of K ions. In conclusion, despite the differences in structure and fluidity of phospholipids in bilayers, the activities of maxi K channels in two charged membranes composed of PS or PI were strikingly similar and larger than those in bilayers of PE. These results suggest that the enhancement of conductance and Po o... -
정신과 입원환자에서의 혈청 콜레스테롤 농도와 공격행동
전태연, 도규영, 정종현, 권용실, 김석범 대한신경정신의학회 신경정신의학 7 Pages
대한신경정신의학회 신경정신의학 1998, 제 37권 제 5호 10 878-884 (7 pages)
목 적： 혈청 콜레스테롤 농도와 자살 등의 공격행동간의 연관성에 관한 여러 연구가 있었으나 일치된 결과를 보이고 있지 못하다. 이에 저자들은 다양한 진단의 정신과 입원 환자들 중 공격행동을 보인 환자의 콜레 스테롤 농도를 정상 한국 성인에서의 혈청 총 콜레스테롤의 성별, 연령별 평균 및 표준편차와 percentile 분포에 맞추어 공격행동 및 자살시도와 혈청 콜레스테롤 농도간의 연관성을 알아보기 위하여 본 연구를 시행하였다. 방 법： 본 연구는 1994년 1월 1일부터 1995년 6월 31일까지 18개월간 가톨릭대학교... -
청소년의 혈청 콜레스테롤, 중성지방 농도와 충동성의 관련성
이준석, 이강표, 이장한, 남정현, 양병환 대한신경정신의학회 신경정신의학 9 Pages
대한신경정신의학회 신경정신의학 2001, 제 40권 제 6호 18 1185-1193 (9 pages)
연구목적： 혈청 콜레스테롤 농도가 저하된 경우에 충동성이 증가한다는 많은 연구가 이루어져왔으며, 최근에는 콜레스테 롤 농도와 독립적으로 혈청 중성지방이 충동성 및 적대적 행동, 우울증과 관련된다는 연구결과가 보고되고 있다. 본 연구에서는 충동성이 높은 시기인 청소년을 대상으로 혈청 콜레스테롤과 충동성의 관계, 혈청 중성지방과 충동성의 관계를 조사해보았다. 방 법： 경상남도 한 군지역 내 고등학교 1학년생 전체 518명을 대상으로 2000년 5월에서 6월 사이에 실시하였으며, 이 가운데 혈청 지질에 영향을 줄 수 있는...
