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131.

Lysophosphatidylcholine Attenuates Endothelium-dependent Relaxation Responses through Inhibition of ACh-induced Endothelial [Ca2+]i Increase

Seong-ChunKwon, Yong-HoLee, TaicksangNam, Duck-SunAhn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.1 5 25-30 (6 pages)

Seong-ChunKwon, Yong-HoLee, TaicksangNam, Duck-SunAhn 저
...
- 3,000원
Lysophosphatidylcholine (LPC), which accumulates in atherosclerotic arteries, has been reported to inhibit endothelium-dependent relaxation (EDR) in many different species. However, the underlying mechanism of LPC-induced inhibition of EDR is still uncertain. In the present study, we measured simultaneously both isometric tension and cytosolic free Ca2⁢ ([Ca2⁢]i) in rabbit carotid strips, and examined the effect of LPC on tension and [Ca2⁢]i. In carotid strips with...
132.

pH-mediated Regulation of Pacemaker Activity in Cultured Interstitial Cells of Cajal

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

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.1 2 7-12 (6 pages)

ByungJooKim, JaeHwaLee, InsukSo, KiWhanKim 저
...
- 3,000원
Interstitial cells of Cajal (ICCs) are pacemakers in gastrointestinal tracts, regulating rhythmicity by activating nonselective cation channels (NSCCs). In the present study, we investigated the general characteristics and pH-mediated regulation of pacemaker activity in cultured interstitial cells of Cajal. Under voltage clamp mode and at the holding potential of ⁣60 mV, the I-V relationships and difference current showed that there was no reversal potential and voltage-independent inward...
133.

Direct Block of Cloned K+ Channels, Kv1.5 and Kv1.3, by Cyclosporin A, Independent of Calcineurin Inhibition

BokHeeChoi, SangJuneHahn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.6 7 353-362 (10 pages)

BokHeeChoi, SangJuneHahn 저
...
- 3,000원
The interaction of cyclosporine A (CsA), an immunosuppressant, with rat brain Kv1.5 (Kv1.5) channels, which were stably expressed in Chinese hamster ovary cells, was investigated using the whole-cell patch-clamp technique. CsA reversibly blocked Kv1.5 currents at ⁢50 mV in a reversible concentration- dependent manner with an apparent IC50 of 1.0μM. Other calcineurin inhibitors (cypermethrin, autoinhibitory peptide) had no effect on Kv1.5 and did not prevent the inhibitory effect of CsA....
134.

Helicobacter pylori Vacuolating Toxin Exhibits Polar Activity of Cl- Secretion and Secretory Response to Carbachol in T84 Cells

NanGeJin, YongRiJin, InsukSo, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.5 8 289-293 (5 pages)

NanGeJin, YongRiJin, InsukSo, KiWhanKim 저
...
- 1,500원
To investigate whether VacA (vacuolating toxin) produced by Helicobacter pylori `Korean stain 99 induces intestinal secretion, purified VacA was added to T84 cell monolayers mounted in Ussing chambers, and electrical parameters were monitored. Mucosal addition of low pH-pretreated VacA increased short circuit current (Isc). The effect was time- and dose-dependent and saturable. The time-to-peak Isc was concentration-dependent. Chloride channel inhibitors, niflumic acid or 5-...
135.

Comparative Study on the Nociceptive Responses Induced by Whole Bee Venom and Melittin

HongKeeShin, KyungHeeLee, SeoEunLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.5 7 281-288 (8 pages)

HongKeeShin, KyungHeeLee, SeoEunLee 저
...
- 3,000원
The present study was undertaken to confirm whether melittin, a major constituent of whole bee venom (WBV), had the ability to produce the same nociceptive responses as those induced by WBV. In the behavioral experiment, changes in mechanical threshold, flinching behaviors and paw thickness (edema) were measured after intraplantar (i.pl.) injection of WBV (0.1 mg & 0.3 mg/paw) and melittin (0.05 mg & 0.15 mg/paw), and intrathecal (i.t.) injection of melittin (6μg). Also studied were the...
136.

Comparison of Vasodilator Effects of Platycodin D and D3 in Rats

Dong-YoonLim, Byeong-CheolKim, Eun-BangLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.3 5 149-155 (7 pages)

Dong-YoonLim, Byeong-CheolKim, Eun-BangLee 저
...
- 3,000원
The aim of the present study was to examine the effects of platycodin D and D3, which are active components derived from the roots of Platycodon grandiflorum A. DC., on the contractile force of the i3olated rat aorta and blood pressure of the anesthetized rat, and also to elucidate its mechanism of action. Both phenylephrine (an adrenergic α1-receptor agonist) and high potassium (a membrane- depolarizing agent) caused great contractile responses in the isolated aortic strips. Platycodin D at...
137.

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...
138.

Congenital LQT Syndromes From Gene to Torsade de Pointes

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

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.1 1 1-8 (8 pages)

EdwardCarmeliet 저
...
- 3,000원
Congenital Long QT syndrome (LQTs) is a relatively rare pathologic disorder but results frequently in sudden cardiac death. Of the six LQTs that have been clinically described, five have been worked out for their genetic and biophysical profile. Most are generated by mutations which cause a loss of function in two delayed K⁢currents, iKs and iKr. One syndrome is generated by mutations in the Na⁢ channel which causes essentially a gain of function in the channel. Clinically the...
139.

Forward-Mode Na+-Ca2+ Exchange during Depolarization in the Rat Ventricular Myocytes with High EGTA

Eun-GiKim, ChangMannKo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.6 5 487-494 (8 pages)

Eun-GiKim, ChangMannKo 저
...
- 3,000원
During depolarization, extrusion of Ca2⁢ from sarcoplasmic reticulum through forward-mode Na⁢-Ca2⁢ exchange was studied in the rat ventricular myocytes patch-clamped in whole-cell configuration. In order to confine the Ca2⁢ responses in a micro-domain by limiting the Ca2⁢ diffusion time, rat ventricular myocytes were dialyzed with high (14 mM) EGTA. K⁢ current was suppressed by substituting KCl with 105 mM CsCl and 20 mM TEA in the pipette filling solution...
140.

G Protein-Coupled Receptor Signaling in Gastrointestinal Smooth Muscle

UyDongSohn, DongSeokKim, KarnamSMurthy 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.4 1 287-297 (11 pages)

UyDongSohn, DongSeokKim, KarnamSMurthy 저
...
- 4,000원
Contraction of smooth muscle is initiated by an increase in cytosolic Ca2⁢ leading to activation of Ca2⁢/ calmodulin-dependnet myosin light chain (MLC) kinase and phosphorylation of MLC. The types of contraction and signaling mechanisms mediating contraction differ depending on the region. The involvement of these different mechanisms varies depending on the source of Ca2⁢ and the kinetic of Ca2⁢ mobilization. Ca2⁢ mobilizing agonists stimulate different...

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