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Altered Electrophysiological Properties of Coronary Artery in Isoprenaline-Induced Cardiac Hypertrophy
NariKim, JinHan, EuiyongKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.5 7 413-421 (9 pages)
to isoprenaline-induced cardiac hypertrophy. Coronary arterial SMCs underwent significant changes in ultrastructure. The unitary current amplitude and the open-state probability of KCa channel were significantly reduced in hypertrophy without open-time and closed-time kinetic. The concentration-response curve of KCa channel to Ca2 is shifted to the right in hypertrophy. The reduction in the mean single channel current and increase in the open channel noise of KCa channel by TEA were more... -
Ionic Dependence and Modulatory Factors of the Background Current Activated by Isoprenaline in Rabbit Ventricular Cells
Leem, Chae-Hun, Lee, Suk-Ho, So, In-Suk, Ho, Won-Kyung, Earm, Yung-E 대한생리학회 대한생리학회지 12 Pages
대한생리학회 대한생리학회지 1992, 제 26권 제 1호 2 15-26 (12 pages)
on the activation of the background current, while cGMP potentiated cGMP effect. When the background current was activated with cGMP and cAMP, isoprenaline could not further increased the background current. The background current activated by isoprenaline depended on extracellular Cl- concentration and its reversal potential was shifted according to chloride equilibrium potential. The change of extracellular Na+ concentration had little effect on reversal potential of the background current... -
토끼 심방근에서 Na-Ca 교환 전류에 대한 Bay K, cAMP, Isoprenaline 효과
호원경(Ho, Won-Kyung), 엄융의(Earm, Yung-E) 대한생리학회 대한생리학회지 12 Pages
대한생리학회 대한생리학회지 1990, 제 24권 제 2호 12 377-388 (12 pages)
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Histone deacetylase inhibitor, CG200745, attenuates cardiac hypertrophy and fibrosis in DOCA-induced hypertensive rats
EunjoLee, Min-jiSong, Hae-AhmLee, Seol-HeeKang, MinaKim, EunKyoungYang, DoYoungLee, SeongguRo, JoongMyungCho, InkyeomKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.5 5 477-485 (9 pages)
CG200745 is a novel inhibitor of histone deacetylases (HDACs), initially developed for treatment of various hematological and solid cancers. Because it is water-soluble, it can be administered orally. We hypothesized that the HDAC inhibitor, CG200745, attenuates cardiac hypertrophy and fibrosis in deoxycorticosterone acetate (DOCA)-induced hypertensive rats. For establishment of hypertension, 40 mg/kg of DOCA was subcutaneously injected four times weekly into Sprague-Dawley rats. All the rats... -
Cryptotanshinone inhibits TNF-α-induced LOX-1 expression by suppressing reactive oxygen species (ROS) formation in endothelial cells
XiaoliRan, WenwenZhao, WenpingLi, JingshanShi, XiupingChen 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.4 4 347-355 (9 pages)
Cryptotanshinone (CPT) is a natural compound isolated from traditional Chinese medicine Salvia miltiorrhiza Bunge. In the present study, the regulatory effect and potential mechanisms of CPT on tumor necrosis factor alpha (TNF-α) induced lectin-like receptor for oxidized low density lipoprotein (LOX-1) were investigated. Human umbilical vein endothelial cells (HUVECs) were cultured and the effect of TNF-α on LOX-1 expression at mRNA and protein levels was determined by Real-time PCR and... -
Relaxation Patterns of Human Gastric Corporal Smooth Muscle by Cyclic Nucleotides Producing Agents
YoungChulKim, WoongChoi, RohyunSung, HeonKim, RaYoungYou, Seon-MeePark, SeiJinYoun, Mi-JungKim, Young-JinSong, Wen-XieXu, SangJinLee, Hyo-Y 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.6 15 503-510 (8 pages)
To elucidate the mechanism of cyclic nucleotides, such as adenosine 3',5'-cyclic monophosphate (cAMP) and guanosine 3',5'-cyclic monophosphate (cGMP), in the regulation of human gastric motility, we examined the effects of forskolin (FSK), isoproterenol (ISO) and sodium nitroprusside (SNP) on the spontaneous, high K＋ and acetylcholine (ACh)-induced contractions of corporal circular smooth muscle in human stomach. Gastric circular smooth muscle showed regular spontaneous contraction, and FSK,... -
Possible Involvement of Ca2＋ Activated K＋ Channels, SK Channel, in the Quercetin-Induced Vasodilatation
SeiichiroNishida, HiroyasuSatoh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.5 5 361-365 (5 pages)
Effects of quercetin, a kind of flavonoids, on the vasodilating actions were investigated. Among the mechanisms for quercetin-induced vasodilatation in rat aorta, the involvement with the Ca2＋ activated K＋ (KCa) channel was examined. Pretreatment with NE (5ՌM) or KCl (60 mM) was carried out and then, the modulation by quercetin of the constriction was examined using rat aorta ring strips (3 mm) at 36.5oC. Quercetin (0.1 to 100ՌM) relaxed the NE-induced vasoconstrictions in a... -
Regulation of Ba2+-Induced Contraction of Murine Ureteral Smooth Muscle
YoungChulKim, MooYeolLee, Wun-JaeKim, SoonChulMyung, WoongChoi, ChanHyungKim, Wen-XieXu, SeungRyulKim6, SangJinLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2007, Vol.11 No.5 7 207-213 (7 pages)
This study was designed to characterize ureteral smooth muscle motility and also to study the effect of forskolin (FSK) and isoproterenol (ISO) on smooth muscle contractility in murine ureter. High K+ (50 mM) produced tonic contraction by 0.17±0.06 mN (n=19). Neuropeptide and neurotransmitters such as serotonin (5μM), histamine (20μM), and carbarchol (CCh, 10∼50μM) did not produce significant contraction. However, CCh (50μM) produced slow phasic contraction in the presence of 25 mM K+.... -
Modulation of Large Conductance Ca2+-activated K+ Channel of Skin Fibroblast (CRL-1474) by Cyclic Nucleotides
JihyunYun, SeungtaeKim, HyoweonBang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 4 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.2 9 131-134 (4 pages)
Potassium channels in human skin fibroblast have been studied as a possible site of Alzheimer disease pathogenesis. Fibroblasts in Alzheimer disease show alterations in signal transduction pathway such as changes in Ca2 homeostasis and/or Ca2-activated kinases, phosphatidylinositol cascade, protein kinase C activity, cAMP levels and absence of specific K channel. However, little is known so far about electrophysiological and pharmacological characteristics of... -
Effect of Amrinone, a Selective Inhibitor of Phosphodiesterase III, on PMNs-induced
ByungKwonOh, HyoungKiKim, SooRanChoi, JinHoSong, EonSubPark, Byung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.1 7 43-50 (8 pages)
Ischemia followed by reperfusion in the presence of polymorphonuclear leukocytes (PMNs) results in a marked cardiac contractile dysfunction. Amrinone, a specific inhibitor of phosphodiesterase 3, has an antioxidant activity against PMNs. Therefore, we hypothesized that amrinone could attenuate PMNs-induced cardiac dysfunction by suppression of reactive oxygen species (ROS) produced fby PMNs. In the present study, we examined the effects of amrinone on isolated ischemic (20 min) and reperfused...
