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181.

Octyl Gallate Inhibits ATP-induced Intracellular Calcium Increase in PC12 Cells by Inhibiting Multiple Pathways

YujieGuo, YiJaeHong, Hyun-JongJang, Myung-JunKim, Duck-JooRhie, Yang-HyeokJo, SangJuneHahn, ShinHeeYoon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.1 4 21-28 (8 pages)

YujieGuo, YiJaeHong, Hyun-JongJang, Myung-JunKim, Duck-JooRhie, Yang-HyeokJo, SangJuneHahn, ShinHeeYoon 저
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- 3,000원
Phenolic compounds affect intracellular free Ca2＋ concentration ([Ca2＋]i) signaling. The study examined whether the simple phenolic compound octyl gallate affects ATP-induced Ca2＋ signaling in PC12 cells using fura-2-based digital Ca2＋ imaging and whole-cell patch clamping. Treatment with ATP (100</SUP>ՌM) for 90 s induced increases in [Ca2＋]i in PC12 cells. Pretreatment with octyl gallate (100 nM to 20ՌM) for 10 min inhibited the ATP-induced [Ca2＋]i response in a...
182.

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)

YoungChulKim, WoongChoi, RohyunSung, HeonKim, RaYoungYou, Seon-MeePark, SeiJinYoun, Mi-JungKim, Young-JinSong, Wen-XieXu, SangJinLee, Hyo-Y 저
...
- 3,000원
contraction with superimposed phasic contractions. FSK, ISO and SNP inhibited high K＋-induced tonic contraction and also ACh-induced phasic and tonic contraction in a reversible manner. Nifedipine (1ՌM), inhibitor of voltage-dependent L-type calcium current (VDCCL), almost abolished ACh-induced phasic contractions. These findings suggest that FSK, ISO and SNP, which are known cyclic nucleotide stimulators, inhibit smooth muscle contraction in human stomach partly via inhibition of VDCCL.
183.

Rifampicin Inhibits the LPS-induced Expression of Toll-like Receptor 2 via the Suppression of NF-κB DNA-binding Activity in RAW 264.7 Cells

SeongKeunKim, YoungMiKim, ChungEunYeum, Song-HyoJin, GueTaeChae, Seong-BeomLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.6 11 475-482 (8 pages)

SeongKeunKim, YoungMiKim, ChungEunYeum, Song-HyoJin, GueTaeChae, Seong-BeomLee 저
...
- 3,000원
Rifampicin is a macrocyclic antibiotic which is used extensively for treatment against Mycobacterium tuberculosis and other mycobacterial infections. Recently, a number of studies have focused on the immune-regulatory effects of rifampicin. Therefore, we hypothesized that rifampicin may influence the TLR2 expression in LPS-activated RAW 264.7 cells. In this study, we determined that rifampicin suppresses LPS-induced TLR2 mRNA expression. The down-regulation of TLR2 expression coincided with...
184.

Diclofenac, a Non-steroidal Anti-inflammatory Drug, Inhibits L-type Ca2＋ Channels in Neonatal Rat Ventricular Cardiomyocytes

OlegV.Yarishkin, EunMiHwang, DonggyuKim, JaeChealYoo, SangSooKang, DeokRyoungKim, Jae-Hee-JungShin, Hye-JooChung, Ho-SangJeong, DawonKang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.6 5 437-442 (6 pages)

OlegV.Yarishkin, EunMiHwang, DonggyuKim, JaeChealYoo, SangSooKang, DeokRyoungKim, Jae-Hee-JungShin, Hye-JooChung, Ho-SangJeong, DawonKang 저
...
- 3,000원
concentrations higher than 3ՌM, diclofenac inhibited reversibly the Na＋ current and did irreversibly the L-type Ca2＋ channels-mediated inward current (IC50=12.89±0.43ՌM) in a dose-dependent manner. However, nifedipine, a well-known L-type channel blocker, effectively inhibited the L-type Ca2＋ currents but not the Na＋ current. Our finding may explain that diclofenac causes the CV risk by the inhibition of L-type Ca2＋ channel, leading to the impairment of E-C coupling in cardiac...
185.

Block of hERG K＋ Channel by Classic Histamine H1 Receptor Antagonist Chlorpheniramine

Hee-KyungHong, Su-HyunJo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.3 12 215-220 (6 pages)

Hee-KyungHong, Su-HyunJo 저
...
- 3,000원
decrease of the current amplitude at the end of the voltage steps and hERG tail currents. The IC50 of chlorpheniramine-dependent hERG block in Xenopus oocytes decreased progressively relative to the degree of depolarization. Chlorpheniramine affected the channels in the activated and inactivated states but not in the closed states. The S6 domain mutations Y652A and F656A partially attenuated (Y652A) or abolished (F656A) the hERG current block. These results suggest that the H1 antihistamine,...
186.

Electrophysiological Characterization of AMPA and NMDA Receptors in Rat Dorsal Striatum

SeungHyunJeun, HyeongSeokCho, KiJungKim, QingZhongLi, Ki-WugSung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.3 11 209-214 (6 pages)

SeungHyunJeun, HyeongSeokCho, KiJungKim, QingZhongLi, Ki-WugSung 저
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- 3,000원
current ratio of EPSCs between ＋50 and −50 mV. NMDA/AMPA ratio was 0.20±0.05, AMPA receptor ratio of GluR2-lacking/GluR2- containing subunit was 0.26±0.05 and NMDA receptor ratio of NR2B/NR2A subunit was 0.32±0.03. The rectification index (control 2.39±0.27) was decreased in the presence of both APV and combination of APV and IEM-1460 (1.02±0.11 and 0.93±0.09, respectively). These results suggest that the major components of the striatal glutamate receptors are GluR2-containing AMPA...
187.

Forskolin Changes the Relationship between Cytosolic Ca2＋ and Contraction in Guinea Pig Ileum

KoonHeeHan, GapJinCheon, DongSooYeon, SeongChunKwon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.3 8 189-194 (6 pages)

KoonHeeHan, GapJinCheon, DongSooYeon, SeongChunKwon 저
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- 3,000원
This study was designed to clarify the mechanism of the inhibitory effect of forskolin on contraction, cytosolic Ca2＋ level ([Ca2＋]i), and Ca2＋ sensitivity in guinea pig ileum. Forskolin (0.1 nM∼10ՌM) inhibited high K＋ (25 mM and 40 mM)- or histamine (3ՌM)-evoked contractions in a concentration- dependent manner. Histamine-evoked contractions were more sensitive to forskolin than high K＋- evoked contractions. Spontaneous changes in [Ca2＋]i and contractions were inhibited by...
188.

Eugenol Inhibits ATP-induced P2X Currents in Trigeminal Ganglion Neurons

HaiYingLi, ByungKyLee, JoongSooKim, SungJunJung, SeogBaeOh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.6 5 315-322 (8 pages)

HaiYingLi, ByungKyLee, JoongSooKim, SungJunJung, SeogBaeOh 저
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- 3,000원
Eugenol is widely used in dentistry to relieve pain. We have recently demonstrated voltage-gated Na＋ and Ca2＋ channels as molecular targets for its analgesic effects, and hypothesized that eugenol acts on P2X3, another pain receptor expressed in trigeminal ganglion (TG), and tested the effects of eugenol by whole-cell patch clamp and Ca2＋ imaging techniques. In the present study, we investigated whether eugenol would modulate 5'-triphosphate (ATP)-induced currents in rat TG neurons and...
189.

PKC-Independent Stimulation of Cardiac Na+/Ca2+ Exchanger by Staurosporine

TongMookKang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.5 7 259-266 (8 pages)

TongMookKang 저
...
- 3,000원
[Ca2+]i transients by reverse mode of cardiac Na+/Ca2+ exchanger (NCX1) were recorded in fura-2 loaded BHK cells with stable expression of NCX1. Repeated stimulation of reverse NCX1 produced a long-lasting decrease of Ca2+ transients ('rundown'). Rundown of NCX1 was independent of membrane PIP2 depletion. Although the activation of protein kinase C (PKC) was observed during the Ca2+ transients, neither a selective PKC inhibitor (calphostin C) nor a PKC activator (PMA) changed the degrees of...
190.

Characterization of Ionic Currents in Human Neural Stem Cells

ChaeGilLim, Sung-SooKim, HaeyoungSuh-Kim, Young-DonLee, SeungCheolAhn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.4 1 131-136 (6 pages)

ChaeGilLim, Sung-SooKim, HaeyoungSuh-Kim, Young-DonLee, SeungCheolAhn 저
...
- 3,000원
presence of external Ba2+ (30ՌM) or Cs+ (3ՌM). However, the reversal potentials did not match well with the predicted K+ equilibrium potentials, suggesting that it was not a classical K+ inward rectifier current. The other Na+ inward current resembled the classical Na+ current observed in pharmacological studies. The expression of these channels may contribute to generation and repolarization of action potential and might be regarded as functional markers for hNSCs-derived neurons.

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