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81.

Acetylcholine Induces Hyperpolarization Mediated by Activation of K(Ca) Channels in Cultured Chick Myoblasts

DoyunLee, JaeheeHan, Jae-YongPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.1 6 37-44 (8 pages)

DoyunLee, JaeheeHan, Jae-YongPark 저
...
- 3,000원
be another pathway for Ca2⁢ influx. Under cell-attatched patch configuration, ACh increased the open probability of KCa channels from 0.007 to 0.055 only when extracellular Ca2⁢ was present. Nicotine, a nAChR agonist, increased the open probability of KCa channels from 0.008 to 0.023, whereas muscarine failed to do so. Since the activity of KCa channel is sensitive to intracellular Ca2⁢ level, nAChR seems to be capable of inducing Ca2⁢ influx. Using the Ca2⁢ imaging...
82.

PGE2 Regulates Pacemaker Currents through EP2-Receptor in Cultured Interstitial Cells of Cajal from Murine Small Intestine

SeokChoi, KyungWonCho, Jong-HyunReu, Jun-SooKim, HyunSikMun, MyungYoungKim, KwangChulPark, GwangSikHeo, SungJongChang, CheolHoYeum, PyungJ 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.3 6 153-160 (8 pages)

SeokChoi, KyungWonCho, Jong-HyunReu, Jun-SooKim, HyunSikMun, MyungYoungKim, KwangChulPark, GwangSikHeo, SungJongChang, CheolHoYeum, PyungJ 저
...
- 3,000원
The interstitial cells of Cajal (ICCs) are the pacemaker cells in gastrointestinal tract and generate electrical rhythmicity in gastrointestinal muscles. Therefore, ICC may be modulated by endogenous agents such as neurotransmitter, hormones, and prostaglandins (PGs). In the present study, we investigated the effects of prostaglandins, especially PGE2, on pacemaker currents in cultured ICCs from murine small intestine by using whole-cell patch clamp techniques. ICCs generated spontaneous slow...
83.

Heterogeneity of the SR-dependent Inward Na+-Ca2+ Exchange Current in the Heavily Ca2+-buffered Rat Ventricular Myocytes

Kyung-BongYoon, Sung-WanAhn, ChangMannKo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.2 6 101-110 (10 pages)

Kyung-BongYoon, Sung-WanAhn, ChangMannKo 저
...
- 3,000원
Voltage-sensitive release mechanism was pharmacologically dissected from the Ca2⁢-induced Ca2⁢ release in the SR Ca2⁢ release in the rat ventricular myocytes patch-clamped in a whole-cell mode. SR Ca2⁢ release process was monitored by using forward-mode Na⁢-Ca2⁢ exchange after restriction of the interactions between Ca2⁢ from SR and Na⁢-Ca2⁢ exchange within micro-domains with heavy cytosolic Ca2⁢ buffering with 10 mM BAPTA. During...
84.

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
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 pressure. The channel was not permeable to Cl⁣, Na⁢ and Cs⁢, but selectively permeable to K⁢, and the degree of...
85.

Inhibitory and Excitatory Postsynaptic Currents of Medial Vestibular Nucleus Neurons of Rats

SangWooChun, JeongHeeChoi, ByungRimPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.2 2 59-63 (5 pages)

SangWooChun, JeongHeeChoi, ByungRimPark 저
...
- 1,500원
The medial vestibular nucleus (MVN) neurons are controlled by excitatory synaptic transmission from the vestibular afferent and commissural projections, and by inhibitory transmission from interneurons. Spontaneous synaptic currents of MVN neurons were studied using whole cell patch clamp recording in slices prepared from 13- to 17-day-old rats. The spontaneous inhibitory postsynaptic currents (sIPSCs) were significantly reduced by the GABAA antagonist bicuculline (20μM), but were not affected...
86.

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)

SungJunJung, JeongSookChoi, JiyeonKwak, JunKim, JongWhanKim, SangJeongKim 저
...
- 1,500원
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...
87.

Thiol-dependent Redox Mechanisms in the Modification of ATP-Sensitive Potassium Channels in Rabbit Ventricular Myocytes

JinHan, NariKim, DangVanCuong, ChunghuiKim, EuiyongKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.1 4 15-23 (9 pages)

JinHan, NariKim, DangVanCuong, ChunghuiKim, EuiyongKim 저
...
- 3,000원
a Langendorff column for coronary perfusion and collagenase. Single-channel currents were measured in excised membrane patch configuration of patch-clamp technique. The thiol oxidizing agent 5,5'-dithio-bis-(2-nitro-benzoic acid) (DTNB) inhibited the channel activity, and the inhibitory effect of DTNB was reversed by dithiothreitol (disulfide reducing agent; DTT). DTT itself did not have any effect on the channel activity. However, in the patches excised from the metabolically compromised cells,...
88.

Changes in Excitability of Neurons in Rat Medial Vestibular Nucleus Following Vestibular Neurectomy

SangWooChun, JeongHeeChoi, ShinHyungLee, ByungRimPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.6 2 287-291 (5 pages)

SangWooChun, JeongHeeChoi, ShinHyungLee, ByungRimPark 저
...
- 1,500원
after unilateral vestibular deafferentation (UVD) were compared. In control rats, proportions of type A and B cells were 30 and 70%, respectively, however, the proportion of type A cells increased following UVD. Bursting discharge and irregular firing patterns were recorded from 2 to 12 h post UVD. The spontaneous discharge rate of neurons in the ipsilesional MVN increased significantly at 2 h post-UVD and remained high until 12 h post-UVD in both type A and type B cells. After-hyperpolarization...
89.

Identification of ATP-sensitive K+ Conductances in Male Rat Major Pelvic Ganglion Neurons

Kyu-SangPark, Seung-KyuCha, Keon-IlLee, JaeYeoulJun, Seong-WooJeong, InDeokKong, JoongWooLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.5 3 247-254 (8 pages)

Kyu-SangPark, Seung-KyuCha, Keon-IlLee, JaeYeoulJun, Seong-WooJeong, InDeokKong, JoongWooLee 저
...
- 3,000원
Major pelvic ganglia (MPG) neurons are classified into sympathetic and parasympathetic neurons according to the electrophysiological properties; membrane capacitance (Cm), expression of T-type Ca2⁢ channels, and the firing patterns during depolarization. In the present study, function and molecular expression of ATP-sensitive K⁢ (KATP) channels was investigated in MPG neurons of male rats. Only in parasympathetic MPG neurons showing phasic firing patterns, hyperpolarizing changes...
90.

Increase of Intracellular Ca2+ Concentration Induced by Lysophosphatidylcholine in Murine Aortic Endothelial Cells

MeiHongZhu, SungJinPark, HyunJinKim, DongKiYang, SukHyoSuh, InsukSo, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.2 5 93-100 (8 pages)

MeiHongZhu, SungJinPark, HyunJinKim, DongKiYang, SukHyoSuh, InsukSo, KiWhanKim 저
...
- 3,000원
Effects of oxidized low-density lipoprotein (ox-LDL), l-α-stearoyl-lysophosphatidylcholine (LPC), on intracellular Ca2⁢ concentration were examined in mouse endothelial cells by measuring intracellular Ca2⁢ concentration ([Ca2⁢]i) with fura 2-AM and reverse transcription-polymerase chain reaction (RT-PCR). LPC increased [Ca2⁢]i under the condition of 1.5 mM [Ca2⁢]o but did not show any effect under the nominally Ca2⁢-free condition. Even after the store...

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