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- KOREAN JOURNAL OF VETERINARY RESEARCH(구 대한수의학회지)(9)
- 신경정신의학(5)
- 한국열환경공학회 학술대회지(5)
- 자원리싸이클링 : 한국자원리싸이클링학회지(2)
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- 한국가스학회지(1)
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Differential Effects of Nitric Oxide Synthase Inhibitors in Rats
Jun-HeeLee, ChangYellShin, BongSuKang, JiHoonJeong, KyeongBumChoi, YoungSilMin, JinHakKim, InHoiHuh, UyDongSohn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.2 3 99-104 (6 pages)
We investigated the action of NOS inhibitors on NOS in rats. Both of nitric oxide synthase inhibitors, NG-monomethyl-L-arginine (L-NMMA, 3μM) or NG-nitro-L-arginine methylester (L-NAME, 30μM), augmented phenylephrine (PE, 107 M)-induced contraction which was inhibited by acetylcholine (ACh) in rat thoracic aorta. This augmentation by L-NAME or L-NMMA was attenuated with the treatment of NO precursor, arginine. ACh, however, decreased the augmentation induced by L-NMMA, but not by... -
Effects of Protein Kinase C Modulation on Hepatic Hemodynamics and Glucoregulation
JoongWooLee, InDeokKong, KyuSangPark, HaeSookChung, JamesPFilkins 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.6 5 571-578 (8 pages)
This study evaluated the effects of PKC activation using phorbol 12-myristate 13-acetate (PMA) and PKC inhibition using the isoquinoline sulfomide derivative H-7 on hemodynamics and glucoregulation in the isolated perfused rat liver. Livers were isolated from fed male Holtzman rats and perfused with Krebs Ringer bicarbonate solution under a constant flow of 50 ml/min at 35oC. Portal vein pressure, glucose and lactate concentrations in the medium and oxygen consumption rates were continuously... -
Effect of Imipramine on Calcium Utilization of Single Cells Isolated from Canine Detrusor
Ho-ShikShim, Hyoung-ChulChoi, Young-SookJeong, Jong-HoKim, Kwang-YounLee, Uy-DongSohn, Jeoung-HeeHa, Won-JoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.4 9 439-445 (7 pages)
This study is to investigate the mechanism of inhibitory effect of imipramine on the calcium utilization in single cells isolated from canine detrusor. 2 mm thick smooth muscle chops were incubated in 0.12% collagenase solution at 36oC, and aerated with 95% O2/5% CO2, and then cell suspension was examined. Acetylcholine (ACh) evoked a concentration-dependent contraction of the isolated detrusor cells in normal physiologic salt solution (PSS), and the ACh-induced contraction was significantly... -
Reoxygenation Stimulates EDRF(s) Release from Endothelial Cells of Rabbit Aorta
SukHyoSuh, JaeJinHan, SungJinPark, JaiYoungChoi, JaeHoonSim, YoungChulKim, KiWhanKim* 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.4 4 393-404 (12 pages)
as a bioassay test ring. The test ring was contracted by prostaglandin F2Ձ (3⁓106 M) which was added to the solution perfusing through the aorta. Hypoxia was evoked by switching the solution aerated with 95% O2/5% CO2 mixed gas to one aerated with 95% N2/5% CO2 mixed gas. Hypoxia/reoxygenation were interexchanged at intervals of 2 minutes (intermittent hypoxia). In some experiments, endothelial cells were exposed to 10-minute hypoxia (continuous hypoxia) and then exposed to... -
Evidence for Adenosine Triphosphate (ATP) as an Excitatory Neurotransmitter in Guinea-Pig Gastric Antrum
TongMookKang, WenxieXu, SungJoonKim, SeungCheolAhn, YoungChulKim, InsukSo, MyoungKyuPark, Dae-YongUhm, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.2 6 165-174 (10 pages)
We explore the question of whether adenosine 5'-triphosphate (ATP) acts as an excitatory neurotransmitter in guinea-pig gastric smooth muscle. In an organ bath system, isometric force of the circular smooth muscle of guinea-pig gastric antrum was measured in the presence of atropine and guanethidine. Under electrical field stimulation (EFS) at high frequencies (＞20 Hz), NO-mediated relaxation during EFS was followed by a strong contraction after the cessation of EFS (a... -
Properties of Spontaneous Activity in Gastric Smooth Muscle
H.Suzuki, Y.Yamamoto, G.D.S.Hirst 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.2 1 119-125 (7 pages)
oscillatory potentials (slow waves) and spike potentials. Spike potentials are blocked by organic Ca2-antagonists, indicating that these result from the activation of L-type Ca2-channel. However, the cellular mechanisms underlying the generation of slow wave remain unclear. Slow waves are insensitive to Ca2-antagonists but are blocked by metabolic inhibitors or low temperature. Recently it has been suggested that Interstitial Cells of Cajal (ICC) serve as pacemaker cells and... -
Mechanism of Membrane Hyperpolarization by Extracellular K+ in Resistance-sized Cerebral Arterial Muscle Cell of Rabbit
SeHoonKim, KunMooChoi, HoeSukKim, ByeongHwaJeon, SeokJongChang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.1 1 1-10 (10 pages)
We sought to find out the mechanism of vascular relaxation by extracellular K concentration ([K]o) in the cerebral resistant arteriole from rabbit. Single cells were isolated from the cerebral resistant arteriole, and using voltage-clamp technique barium-sensitive K currents were recorded, and their characteristics were observed. Afterwards, the changes in membrane potential and currents through the membrane caused by the change in [K]o was observed. In the smooth... -
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... -
Roles of Na+-Ca2+ Exchange in the Negative Force-Frequency Relationship
ChangMannKoSoonJinKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.6 8 715-724 (10 pages)
Frequency-force relationships (FFR) were studied in electrically field stimulated rat left atria (LA) by reducing the stimulation frequency from resting 3 Hz to test frequencies (0.1-1 Hz) for 5 minutes. The twitch amplitudes of LA elicited the typical negative staircases with 3-phased changes: the initial rapid increase, the second decrease and the following plateau at test frequencies. Verapamil (3⁓105 M) pretreatment elicited frequency-dependent suppression of the twitch... -
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)
The effects of membrane surface charge originated from lipid head groups on ion channels were tested by analyzing the activity of single large conductance Ca2-activated K (maxi K) channel from rat skeletal muscle. The conductances and open-state probability (Po) of single maxi K channels were compared in three types of planar lipid bilayers formed from a neutral phosphatidylethanolamine (PE) or two negatively-charged phospholipids, phosphatidylserine (PS) and phosphatidylinositol...
