자료유형
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- 대한생리학회-대한약리학회(63)
- 대한수의학회(16)
- 대한생리학회(11)
- 대한약리학회(10)
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- THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY(63)
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- 대한생리학회지(11)
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Role of Stretch-Activated Channels in Stretch-Induced Changes of Electrical Activity
JaeBoumYoum, Su-HyunJo, ChaeHunLeem, Won-KyungHo, YungE. 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.1 6 33-41 (9 pages)
We developed a cardiac cell model to explain the phenomenon of mechano-electric feedback (MEF), based on the experimental data with rat atrial myocytes. It incorporated the activity of ion channels, pumps, exchangers, and changes of intracellular ion concentration. Changes in membrane excitability and Ca2 transients could then be calculated. In the model, the major ion channels responsible for the stretch-induced changes in electrical activity were the stretch-activated channels (SACs).... -
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)
local anesthetics on differential rotational mobility of different positions of the number of synaptosomal plasma membrane vesicle (SPMV) phospholipid carbon atoms. The four membrane components differed with respect to 3, 6, 9 and 16-(9-anthroyloxy)stearic acid (3-AS, 6-AS, 9-AS and 16-AP) probes, indicating that differences 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... -
Mechanism of Glutamate-induced [Ca2+]i Increase in Substantia Gelatinosa Neurons of Juvenile Rats
SungJunJung, JeongSookChoi, JiyeonKwak, JunKim, JongWhanKim, SangJeongKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.2 1 53-57 (5 pages)
The glutamate receptors (GluRs) are key receptors for modulatory synaptic events in the central nervous system. It has been reported that glutamate increases the intracellular Ca2 concentration ([Ca2]i) and induces cytotoxicity. In the present study, we investigated whether the glutamate-induced [Ca2]i increase was associated with the activation of ionotropic (iGluR) and metabotropic GluRs (mGluR) in substantia gelatinosa neurons, using spinal cord slice of juvenile rats... -
Increases in Effective Cleft Glutamate Concentration During Expression of LTP
SuHyunJung, SukwooChoi 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.2 8 113-120 (8 pages)
Long-term potentiation (LTP) at hippocampal CA3-CA1 synapses is often associated with increases in quantal size, traditionally attributed to enhanced availability or efficacy of postsynaptic glutamate receptors. However, augmented quantal size might also reflect increases in neurotransmitter concentration within the synaptic cleft since AMPA-type glutamate receptors are not generally saturated during basal transmission. Here we report evidence that peak cleft glutamate concentration... -
Regulation of the Contraction Induced by Emptying of Intracellular Ca2+ Stores in Cat Gastric Smooth Muscle
Hye-JungBaek, Sang-SooSim, Duck-JooRhie, ShinHeeYoon, SangJuneHahn, Yang-HyeokJo, Myung-SukKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.2 5 113-120 (8 pages)
To investigate the mechanism of smooth muscle contraction induced by emptying of intracellular Ca2 stores, we measured isometric contraction and 45Ca2 influx. CaCl2 increased Ca2 store emptying- induced contraction in dose-dependent manner, but phospholipase C activity was not affected by the Ca2 store emptying-induced contraction. The contraction was inhibited by voltage-dependent Ca2 channel antagonists dose dependently, but not by TMB-8 (intracellular... -
The Role of K+ Channels on Spontaneous Action Potential in Rat Clonal Pituitary GH3 Cell Line
HyewhonRhim, Hye-JungBaek, Won-KyungHo, YungEEarm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.2 1 81-90 (10 pages)
The types of K channel which determine the pattern of spontaneous action potential (SAP) were investigated using whole-cell variation of patch clamp techniques under current- and voltage-clamp recording conditions in rat clonal pituitary GH3 cells. Heterogeneous pattern of SAP activities was changed into more regular mode with elongation of activity duration and afterhyperpolarization by treatment of TEA (10 mM). Under this condition, exposure of the class III antiarrhythmic agent E-4031... -
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... -
Acute Pulmonary Responses in Vivo to Silica Complexed with H+, Zn2+, or Fe3+
JiheeLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.2 8 183-189 (7 pages)
by northern blot analysis. Differential counts of the lavage cells showed that red blood cells were increased by 9-, 8-, and 13-fold and total leukocytes (lymphocytes plus polymorphonuclear neutrophils) by 48-, 36-, and 33-fold, following IT silica- H, -Zn2, and -Fe3, respectively compared with the saline group. Meanwhile, there were no significant differences in red blood cells and total leukocytes among any of the cation complexed silica groups. The levels of LDH and total... -
Role of Phospholipase A2 in Hypoxia-Induced Renal Cell Injury
WonRakChoi, SunHeeKo, SuInCho, JaeSukWoo, JinSupJung, SangHoLee, YongKeunKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.1 12 93-100 (8 pages)
The present study was designed to assess the roles of PLA2 activation and arachidonic acid (AA) metabolites in hypoxia-induced renal cell injury. Hypoxia increased LDH release in a dose-dependent manner in rabbit renal cortical slices, and this increase was significant after 20-min hypoxia. The hypoxia-induced LDH release was prevented by amino acids, glycine and alanine, and extracellular acidosis (pH 6.0). Buffering intracellular Ca2 by a chelator, but not omission of Ca2 in the... -
The Mechanism of t-Butylhydroperoxide-Induced Apoptosis in IMR- 32 Human Neuroblastoma Cells
Jung-AeKim, YongSooLee, KeunHuh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.1 3 19-28 (10 pages)
Apoptosis has been implicated in the pathophysiological mechanisms of various neurodegenerative diseases. In a variety of cell types, oxidative stress has been demonstrated to play an important role in the apoptotic cell death. However, the exact mechanism of oxidative stress-induced apoptosis in neuronal cells is not known. In this study, we induced oxidative stress in IMR-32 human neuroblastoma cells with tert- butylhydroperoxide (TBHP), which was confirmed by significantly reduced...
