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61.

Regulation of L-type Calcium Channel Current by Somatostatin in Guinea-Pig Gastric Myocytes

YoungChulKim, JaeHoonSim, SangJinLee, TongMookKang, SungJoonKim, SeungRyulKim, SeiJinYoun, SangJeonLee, Wen-XieXu6, InsukSo, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.2 5 103-108 (6 pages)

YoungChulKim, JaeHoonSim, SangJinLee, TongMookKang, SungJoonKim, SeungRyulKim, SeiJinYoun, SangJeonLee, Wen-XieXu6, InsukSo, KiWhanKim 저
...
- 3,000원
a Boltzmann equation. Voltage of half-activation (V0.5) was ⁣12⁑0.5 mV in control and ⁣11⁑1.9 mV in SS treated groups (respectively, n=5). The same values of half-inactivation were ⁣35⁑1.4 mV and ⁣35⁑1.9 mV (respectively, n=5). There was no significant difference in activation and inactivation kinetics of IBa by SS. Inhibitory effect of SS on IBa was significantly reduced by either dialysis of intracellular solution with GDPβS, a non-hydrolysableG...
62.

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)

JaeBoumYoum 저
...
- 3,000원
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...
63.

Intrinsic Gating in Inward Rectifier Potassium Channels (Kir2.1) with Low Polyamine Affinity Generated by Site Directed Mutagenesis

ISo, , IAshmole, HSoh, CSPark, PJSpencer, MLeyl, PRStanfield, 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.3 3 131-142 (12 pages)

ISo, , IAshmole, HSoh, CSPark, PJSpencer, MLeyl, PRStanfield, 저
...
- 4,100원
We have studied mutant forms of Kir2.1 in which an aspartate residue (D172), important for gating by intracellular polyamines, is replaced by one of three basic residues (Arg, Lys or His). Such channels are highly selective for K+, but show inward rectification that is a shallow function of voltage compared with that found in wild type. This inward rectification occurs with a reduced affinity for spermine and persists in the absence of polyamines. Though the unitary current-voltage relation...
64.

The Inhibitory Effect of Opioid on the Hyperpolarization-Activated Cation Currents in Rat Substantia Gelatinosa Neurons

GeunHeeSeol, JunKim, SunHeeCho, WonKiKim, JongWhanKim, SangJeongKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.5 2 373-380 (8 pages)

GeunHeeSeol, JunKim, SunHeeCho, WonKiKim, JongWhanKim, SangJeongKim 저
...
- 3,000원
The action of opioid on the hyperpolarization-activated cation current (Ih) in substantia gelatinosa neurons were investigated by using whole-cell voltage-clamp recording in rat spinal brain slices. Hyperpolarizing voltage steps revealed slowly activating currents in a subgroup of neurons. The half-maximal activation and the reversal potential of the current were compatible to neuronal Ih. DAMGO (1μM), a selective- opioid agonist, reduced the amplitude of Ih reversibly. This reduction was...
65.

Effect of Capsaicin on Delayed Rectifier K+ Current in Adult Rat Dorsal Root Ganglion Neurons

JunghyunHahn, SungkwonChung, HyoweonBang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.1 2 9-14 (6 pages)

JunghyunHahn, SungkwonChung, HyoweonBang 저
...
- 3,000원
K⁢ currents play multiple roles in the excitability of dorsal root ganglion (DRG) neurons. Influences on these currents change the shape of the action potential, its firing threshold and the resting membrane potential. In this study, whole cell configuration of patch clamp technique had been applied to record the blocking effect of capsaicin, a lipophilic alkaloid, on the delayed rectifier K⁢ current in cultured small diameter DRG neurons of adult rat. Capsaicin reduced the...
66.

Depression of L-type Ca2+ and Transient Outward K+ Currents in Endotoxin-treated Rat Cardiac Myocytes

KyuSangPark, BooSooLee, InDeokKongJoongWooLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.6 11 623-630 (8 pages)

KyuSangPark, BooSooLee, InDeokKongJoongWooLee 저
...
- 3,000원
Decreased cardiac contractility occurs in endotoxicosis, but little is known about the ionic mechanism responsible for myocardial dysfunction. In this study, we examined the changes in Ca2⁢ and K⁢ currents in cardiac myocytes from endotoxin-treated rat. Ventricular myocytes were isolated from normal and endotoxemic rats (ex vivo), that were treated for 10 hours with Salmonella enteritidis lipopolysaccharides (LPS; 1.5 mg/kg) intravenously. Normal cardiac myocytes were also incubated...
67.

Role of K+ Channels to Resting Membrane Potential of Rabbit Middle Cerebral Arterial Smooth Muscle Cells

NariKim, JinHan, EuiyongKim, Yun-HeeKim, Jae-HongSim, Soo-CheonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.6 2 547-554 (8 pages)

NariKim, JinHan, EuiyongKim, Yun-HeeKim, Jae-HongSim, Soo-CheonKim 저
...
- 3,000원
The aim of the present study is to investigate the contribution of Ca2⁢-activated K⁢ (KCa) channels and delayed rectifier K⁢ (KV) channels to the resting membrane potential (RMP) in rabbit middle cerebral arterial smooth muscle cells. The RMP and membrane currents were recorded using the whole-cell patch configuration and single KCa channel was recorded using the outside-out patch configuration. Using the pipette solution containing 0.05 mM EGTA, the RMP was...
68.

Decreased Voltage Dependent K+ Currents in Cerebral Arterial Smooth Muscle Cells of One-Kidney, One-Clip Goldblatt Hypertensive Rat

YoungSunOh, SeHoonKim, HoeSukKim, ByeongHwaJeon, SeokJongChang, KwangJinKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.5 3 471-479 (9 pages)

YoungSunOh, SeHoonKim, HoeSukKim, ByeongHwaJeon, SeokJongChang, KwangJinKim 저
...
- 3,000원
The Kv channel activity in vascular smooth muscle cell plays an important role in the regulation of membrane potential and blood vessel tone. It was postulated that increased blood vessel tone in hypertension was associated with alteration of Kv channel and membrane potential. Therefore, using whole cell mode of patch-clamp technique, the membrane potential and the 4-AP-sensitive Kv current in cerebral arterial smooth muscle cells were compared between normotensive rat and one-kidney, one-clip...
69.

Two Types of Voltage-dependent Outward Potassium Currents in Smooth Muscle Cells of Rabbit Basilar Atery

TongMookKang, InsukSo, DaeYongUhm, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 15 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.2 7 169-183 (15 pages)

TongMookKang, InsukSo, DaeYongUhm, KiWhanKim 저
...
- 4,400원
We have investigated the two types of voltage-dependent outward potassium (K) currents, i.e. delayed rectifier K current (IK(V)) and 'A-like' transient outward K current (Ito) with patch-clamp technique in single smooth muscle cells (SMCs) isolated from rabbit basilar artery, and investigated the characteristics of them. The time-courses of activation were well fitted by exponential function raised to second power (n2) in IK(v) and fourth power (n4) in Ito. The activation, inactivation and...
70.

Calcium Current in the Unfertilized Egg of the Hamster

Haan, Jae-Hee, Cho, Soo-Wan, Yang, Young-Sun, Park, Young-Geun, Park, Hong-Gi, Chang, Gyeong-Jae, Kim, Yang-Mi, Park, Choon-Ok, Hong, Se 대한생리학회 대한생리학회지 10 Pages

대한생리학회 대한생리학회지 1994, 제 28권 제 2호 12 215-224 (10 pages)

Haan, Jae-Hee, Cho, Soo-Wan, Yang, Young-Sun, Park, Young-Geun, Park, Hong-Gi, Chang, Gyeong-Jae, Kim, Yang-Mi, Park, Choon-Ok, Hong, Se 저
...
- 3,000원
The presence of a calcium current (iCa2+) passed via a specific channel was examined in the unfertilized hamster egg using the whole-cell voltage clamp technique. Pure inward current was isolated using a Ca2+-rich pipette solution containing 10 mM TEA. This current was independent of external Na+ and was highly sensitive to the Ca2+ concentration in the bathing solution, indicating that the inward current is carried by Ca2+. The maximal amplitude was -4.12±0.58nA (n=12) with 10mM Ca2+ at -3OmV...

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