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51.

Effect of Stimulus Waveform of Biphasic Current Pulse on Retinal Ganglion Cell Responses in Retinal Degeneration (rd1) mice

KunNoAhn, JeongYeolAhn, Jae-hyungKim, KyoungrokCho, Kyo-inKoo, SolomonS.Senok, YongSookGoo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.2 12 167-175 (9 pages)

KunNoAhn, JeongYeolAhn, Jae-hyungKim, KyoungrokCho, Kyo-inKoo, SolomonS.Senok, YongSookGoo 저
...
- 3,000원
A retinal prosthesis is being developed for the restoration of vision in patients with retinitis pigmentosa (RP) and age-related macular degeneration (AMD). Determining optimal electrical stimulation parameters for the prosthesis is one of the most important elements for the development of a viable retinal prosthesis. Here, we investigated the effects of different charge-balanced biphasic pulses with regard to their effectiveness in evoking retinal ganglion cell (RGC) responses. Retinal...
52.

Requirement of Pretone by Thromboxane A2 for Hypoxic Pulmonary Vasoconstriction in Precision-cut Lung Slices of Rat

SuJungPark, HaeYoungYoo, HyeJinKim, , , JinKyoungKim, Yin-HuaZhang, SungJoonKim, 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.1 9 59-64 (6 pages)

SuJungPark, HaeYoungYoo, HyeJinKim, , , JinKyoungKim, Yin-HuaZhang, SungJoonKim, 저
...
- 3,000원
Hypoxic pulmonary vasoconstriction (HPV) is physiologically important response for preventing mismatching between ventilation and perfusion in lungs. The HPV of isolated pulmonary arteries (HPV-PA) usually require a partial pretone by thromboxane agonist (U46619). Because the HPV of ventilated/perfused lungs (HPV-lung) can be triggered without pretone conditioning, we suspected that a putative tissue factor might be responsible for the pretone of HPV. Here we investigated whether HPV can be also...
53.

Electrically-evoked Neural Activities of rd1 Mice Retinal Ganglion Cells by Repetitive Pulse Stimulation

SangBaekRyu, JangHeeYe, JongSeungLee, YongSookGoo, ChiHyunKim, KyungHwanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.6 6 443-448 (6 pages)

SangBaekRyu, JangHeeYe, JongSeungLee, YongSookGoo, ChiHyunKim, KyungHwanKim 저
...
- 3,000원
For successful visual perception by visual prosthesis using electrical stimulation, it is essential to develop an effective stimulation strategy based on understanding of retinal ganglion cell (RGC) responses to electrical stimulation. We studied RGC responses to repetitive electrical stimulation pulses to develop a stimulation strategy using stimulation pulse frequency modulation. Retinal patches of photoreceptor-degenerated retinas from rd1 mice were attached to a planar multi-electrode array...
54.

Modeling of Arrhythmogenic Automaticity Induced by Stretch in Rat Atrial Myocytes

JaeBoumYoum, ChaeHunLeem, YinHuaZhang, NariKim, JinHan, YungE.Earm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.5 8 267-274 (8 pages)

JaeBoumYoum, ChaeHunLeem, YinHuaZhang, NariKim, JinHan, YungE.Earm 저
...
- 3,000원
Since first discovered in chick skeletal muscles, stretch-activated channels (SACs) have been proposed as a probable mechano-transducer of the mechanical stimulus at the cellular level. Channel properties have been studied in both the single-channel and the whole-cell level. There is growing evidence to indicate that major stretch-induced changes in electrical activity are mediated by activation of these channels. We aimed to investigate the mechanism of stretch-induced automaticity by...
55.

The Effects of DTBNP on Intracellular Ca2+ Signaling in Cultured Bovine Aortic Endothelial Cells

SungJinPark, ByungJooKim, MeiHongZhu, InsukSo, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.6 5 341-346 (6 pages)

SungJinPark, ByungJooKim, MeiHongZhu, InsukSo, KiWhanKim 저
...
- 3,000원
The mechanism underlying oxidant-induced intracellular Ca2+ ([Ca2+]i) increase was studied in cultured bovine aortic endothelial cells (BAECs) using fura-2 AM. In the presence of 2 mM extracellular Ca2+, the application of DTBNP (20μM), a membrane-permeable oxidant, caused an increase in [Ca2+]i, and DTT (2 mM) as a reductant completely reversed the effect of DTBNP. The [Ca2+]i increase induced by DTBNP was also observed in an extracellular Ca2+-free/2 mM EGTA solution, indicating the release...
56.

The Role of Mitochondrial ATP-sensitive Potassium Channel on Intestinal Pacemaking Activity

ByungJooKim, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.4 4 209-214 (6 pages)

ByungJooKim, KiWhanKim 저
...
- 3,000원
Interstitial cells of Cajal (ICCs) are the pacemaker cells that generate slow waves in the gastrointestinal (GI) tract. In the present study, we investigated the effect of mitochondrial ATP-sensitive potassium (mitoKATP) channel on pacemaking activity in cultured ICCs from murine small intestine by using whole-cell patch clamp techniques. Under current clamp mode, at 10μM glibenclamide, there was no change in pacemaking activity of ICCs. At 30μM glibenclamide, an inhibitor of the ATP sensitive...
57.

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)

JihyunYun, SeungtaeKim, HyoweonBang 저
...
- 1,500원
we found Iberiotoxin- and TEA-sensitive outward rectifying oscillatory current with whole-cell recordings. Single channel analysis showed large conductance K⁢ channels (106 pS of chord conductance at ⁢40 mV in physiological K⁢ gradient). The 106 pS channels were activated by membrane potential and [Ca2⁢]i, consistent with the known properties of BKCa channels. BKCa channels in CRL-1474 were positively regulated by adenylate cyclase activator (10μM forskolin), 8-Br-cyclic...
58.

Buffering Contribution of Mitochondria to the [Ca2+]i Increase by Ca2+ Influx through Background Nonselective Cation Channels in Rabbit Aortic Endothelial Cells

YoungChulKim, SangJinLee, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.1 5 29-36 (8 pages)

YoungChulKim, SangJinLee, KiWhanKim 저
...
- 3,000원
oscillatory decay after [Ca2+]i reached the peak level. The increase of [Ca2+]i by NMDG+ was completely suppressed by replacement with Cs+. When 1μM CCCP was applied to bath solution, the ratio of [Ca2+]i was increased by 0.4⁑0.06 (n=31). When 1μM CCCP was used for pretreatment before application of NMDG+, oscillatory decay of [Ca2+]i by NMDG+ was significantly inhibited compared to the control (p＜0.05). In addition, NMDG+-induced increase of [Ca2+]i was highly enhanced by pretreatment...
59.

Characterization of Intermediate Conductance K+ Channels in Submandibular Gland Acinar Cells

Sung-ManCho, ZhengGenPiao, YoonBaeKim, Joong-SooKim, KyungpyoPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.6 5 305-309 (5 pages)

Sung-ManCho, ZhengGenPiao, YoonBaeKim, Joong-SooKim, KyungpyoPark 저
...
- 1,500원
There are some evidences that K⁢ efflux evoked by muscarinic stimulation is not mainly mediated by large conductance K⁢ (BK) channels in salivary gland. In this experiment, we therefore characterised non BK channels in rat submandibular gland acinar cells and examined the possibility of agonist effect on this channel using a patch clamp technique. Two types of K⁢ channels were observed in these cells. BK channels were observed in 3 cells from total 6 cells and its average...
60.

Roles of Ca2+-Activated K+ Conductances on Spontaneous Firing Patterns of Isolated Rat Medial Vestibular Nucleus Neurons

SangWooChun, JaeWooJun, ByungRimPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.1 1 1-8 (8 pages)

SangWooChun, JaeWooJun, ByungRimPark 저
...
- 3,000원
To investigate the contributions of intrinsic membrane properties to the spontaneous activity of medial vestibular nucleus (MVN) neurons, we assessed the effects of blocking large and small calcium-activated potassium channels by means of patch clamp recordings. Almost all the MVN neurons recorded in neonatal (P13∼P17) rat were shown to have either a single deep after-hyperpolarization (AHP; type A cells), or an early fast and a delayed slow AHP (type B cells). Among the recorded MVN cells,...

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