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251.

Changes of Cytosolic Ca2+ under Metabolic Inhibition in Isolated Rat Ventricular Myocytes

SunghyunKang, NariKim, HyunJoo, JaeBoumYoum, WonSunPark, MohamedWarda, HyungkyuKim, DangVanCuong, TaehoKim, EuiyongKim, JinHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.5 6 291-298 (8 pages)

SunghyunKang, NariKim, HyunJoo, JaeBoumYoum, WonSunPark, MohamedWarda, HyungkyuKim, DangVanCuong, TaehoKim, EuiyongKim, JinHan 저
...
- 3,000원
To characterize cytosolic Ca2⁢ fluctuations under metabolic inhibition, rat ventricular myocytes were exposed to 200μM 2,4-dinitrophenol (DNP), and mitochondrial Ca2⁢, mitochondrial membrane potential (ΔΨm), and cytosolic Ca2⁢ were measured, using Rhod-2 AM, TMRE, and Fluo-4 AM fluorescent dyes, respectively, by Laser Scanning Confocal Microscopy (LSCM). Furthermore, the role of sarcolemmal Na⁢/Ca2⁢ exchange (NCX) in cytosolic Ca2⁢ efflux was studied in...
252.

YS 49, a Synthetic Isoquinoline Alkaloid, Protects Sheep Pulmonary Artery Endothelial Cells from tert-butylhydroperoxide-mediated Cytotoxicity

WonSeogChong, SunYoungKang, YoungJinKang, MinKyuPark, YoungSooLee, HyeJungKim, HanGeukSeo, JaeHeunLee, HyeSookYun-Choi, KiChurlChang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.5 5 283-290 (8 pages)

WonSeogChong, SunYoungKang, YoungJinKang, MinKyuPark, YoungSooLee, HyeJungKim, HanGeukSeo, JaeHeunLee, HyeSookYun-Choi, KiChurlChang 저
...
- 3,000원
Endothelium, particularly pulmonary endothelium, is predisposed to injury by reactive oxygen species (ROS) and their derivatives. Heme oxygenase (HO) has been demonstrated to provide cytoprotective effects in models of oxidant-induced cellular and tissue injuries. In the present study, we investigated the effects of YS 49 against oxidant [tert-butylhydroperoxide (TBH)]-induced injury using cultured sheep pulmonary artery endothelial cells (SPAECs). The viability of SPAECs was determined by...
253.

Postischemic Treatment with Aminoguanidine Inhibits Peroxynitrite Production in the Peroxynitrite Production in the Rat Hippocampus Following Transient Forebrain Ischemia

Yun-SikChoi, Yeo-HongYoon, JuEunLee, Kyung-OkCho, SeongYunKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.1 1 1-5 (5 pages)

Yun-SikChoi, Yeo-HongYoon, JuEunLee, Kyung-OkCho, SeongYunKim 저
...
- 1,500원
Transient forebrain ischemia results in the delayed neuronal death in the CA1 area of the hippocampus. The present study was performed to determine effects of aminoguanidine, a selective iNOS inhibitor, on the generation of peroxynitrite and delayed neuronal death occurring in the hippocampus following transient forebrain ischemia. Transient forebrain ischemia was produced in the conscious rats by four-vessel occlusion for 10 min. Treatment with aminoguanidine (100 mg/kg or 200 mg/kg, i.p.) or...
254.

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...
255.

Inhibitory Effect of Esculetin on the Inducuble Nitric Oxide Synthase Expression in TNF-stimulated 3T3-L1 Adipocytes

Jeong-YehYang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.5 7 283-287 (5 pages)

Jeong-YehYang 저
...
- 1,500원
While nitric oxide (NO) produced by inducible nitric oxide synthase (iNOS) is beneficial for host survival, it is also detrimental to the host. Thus, regulation of iNOS gene expression may be an effective therapeutic strategy for the prevention of unwanted reactions at various pathologic conditions. During the screening process for the possible iNOS regulators, we observed that esculetin is a potent inhibitor of cytokine-induced iNOS expression. The treatment of 3T3-L1 adipocytes with the tumor...
256.

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...
257.

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
Cellular redox state is known to be perturbed during ischemia and that Ca2⁢ and K⁢ channels have been shown to have functional thiol groups. In this study, the properties of thiol redox modulation of the ATP-sensitive K⁢ (KATP) channel were examined in rabbit ventricular myocytes. Rabbit ventricular myocytes were isolated using a Langendorff column for coronary perfusion and collagenase. Single-channel currents were measured in excised membrane patch configuration of...
258.

Neuroprotective Effect of 8-OH-DPAT on Long-term Sequelae from Prenatal Ischemia in Rats

SeoulLee, TieYuanZhang, GunTaeKim, HeeSooKim, JongDooLee, JeongWonJahng, DongGooKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.6 3 293-297 (5 pages)

SeoulLee, TieYuanZhang, GunTaeKim, HeeSooKim, JongDooLee, JeongWonJahng, DongGooKim 저
...
- 1,500원
The role of 5-hydroxytryptamine (5-HT)1A receptor activity in prenatal ischemia was studied, by injecting 8-hydroxy-dipropylaminotetraline (8-OH-DPAT; 50μg/kg, s.c.), a 5-HT1A agonist on gestation day 17, and 30 min later inducing transient ischemia by ligating the uterine vessels for 30 min. On postnatal day 95, rats that had experienced prenatal ischemia showed impaired motor coordination and reduced concentration of 5-HT in the cerebellum compared with Sham-operated controls. In addition,...
259.

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...
260.

Activation of ATP-sensitive Potassium Channels by the Predominant Metabolite of Isoflurane in Rabbit Ventricular Myocytes

JinHan, NariKim, EuiyongKim, SungjuKim, KangheeCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.2 7 165-175 (11 pages)

JinHan, NariKim, EuiyongKim, SungjuKim, KangheeCho 저
...
- 4,000원
Background: Recent in vivo experimental evidence suggests that isoflurane-induced cardioprotection may involve KATP channel activation. However, it was demonstrated that isoflurane inhibited KATP channel activities in the inside-out patch mode. To explain this discrepancy, the present investigation tested the hypothesis that a metabolite of isoflurane, trifluoroacetic acid (TFA), contributes to isoflurnae-induced cardioprotection via KATP channel activation during myocardial ischemia and...

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