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691.

Characteristic Intracelluar Response to Lidocaine And MK-801 of Hippocampal Neurons An In Vivo Intracellular Neuron Recording Study

Byung-JuChoiJin-HwaCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.3 4 297-305 (9 pages)

Byung-JuChoiJin-HwaCho 저
...
- 3,000원
This study used in vivo intracellular recording in rat hippocampus to evaluate the effect of lidocaine and MK-801 on the membrane properties and the synaptic responses of individual neurons to electrical stimulation of the commissural pathway. Cells in control group typically fired in a tonic discharge mode with an average firing frequency of 2.4⁑0.9 Hz. Neuron in MK-801 treated group (0.2 mg/kg, i.p.) had an average input resistance of 32.8⁑5.7 MΩ and a membrane time constant of...
692.

Effect of K+-channel Blockers on the Muscarinic- and A1-adenosine- Receptor Coupled Regulation of Electrically Evoked Acetylcholine Release in the Rat Hippocampus

ByungSikYu, DoKyungKim, BongKyuChoi 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.2 2 147-154 (8 pages)

ByungSikYu, DoKyungKim, BongKyuChoi 저
...
- 3,000원
It was attempted to clarify the participation of K+-channels in the post-receptor mechanisms of the muscarinic and A1-adenosine receptor- mediated control of acetylcholine (ACh) release in the present study. Slices from the rat hippocampus were equilibrated with [3H]choline and the release of the labelled products was evoked by electrical stimulation (3 Hz, 5 V/cm, 2 ms, rectangular pulses), and the influence of various agents on the evoked tritium-outflow was investigated. Oxotremorine (Oxo,...
693.

ATP-Sensitive K+ Currents in Gastric Myocytes Isolated from Guinea-pig

JaeYeoulJun, CheolHoYeum, PyungJinYun, JongSeongPark, SungJoonKim, InsukSo, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.1 11 85-93 (9 pages)

JaeYeoulJun, CheolHoYeum, PyungJinYun, JongSeongPark, SungJoonKim, InsukSo, KiWhanKim 저
...
- 3,000원
a specific inhibitor of KATP channels. The aims of this study were to investigate whether KATP channels exist in gastric smooth muscle of guinea-pig and to know its physiological role. Whole cell K'+ curr‘ents activated by lemakalim were recorded from freshly isolated cells with a 0.1 mM ATP， 140 mM KCl pipette solutions. Lemakalim (10 μM) increased inward currents of -224:t34 pA (n=13) at -80 mV of holding potential in bath solution contained 90 mM K'+ . Bath-applied glibenclamide (10 μM)...
694.

Effects of Arachidonic Acid on the Calcium Channel Current (IBa) and on the Osmotic Stretch-induced Increase of IBa in Guinea-Pig Gastric Myocytes

WenXieXu, SungJoonKim, InsukSo, SukHyoSuh, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.4 10 435-443 (9 pages)

WenXieXu, SungJoonKim, InsukSo, SukHyoSuh, KiWhanKim 저
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- 3,000원
We employed the whole-cell patch clamp technique to investigate the effects of arachidonic acid (AA) on barium inward current through the L-type calcium channels (IBa) and on osmotic stretch-induced increase of IBa in guinea-pig antral gastric myocytes. Under isosmotic condition, AA inhibited IBa in a dose-dependent manner to 91.1⁑1.4, 72.0⁑3.2, 46.0⁑1.8, and 20.3⁑2.3% at 1, 5, 10, 30 mM, respectively. The inhibitory effect of AA was not affected by 10 ㄍM...
695.

Changes in Renal Brush-Border Sodium-Dependent Transport Systems in Gentamicin-Treated Rats

SoongYongSuhl, DoWhanAhn, KyoungRyongKim, JeeYeunKim, YangSaengPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.4 7 403-411 (9 pages)

SoongYongSuhl, DoWhanAhn, KyoungRyongKim, JeeYeunKim, YangSaengPark 저
...
- 3,000원
To elucidate the mechanism of gentamicin induced renal dysfunction, renal functions and activities of various proximal tubular transport systems were studied in gentamicin-treated rats (Fisher 344). Gentamicin nephrotoxicity was induced by injecting gentamicin sulfate subcutaneously at a dose of 100 mg/kg·day for 7 days. The gentamicin injection resulted in a marked polyuria, hyposthenuria, proteinuria, glycosuria, aminoaciduria, phosphaturia, natriuresis, and kaliuresis, characteristics of...
696.

Effect of t-butylhydroperoxide on Na+-dependent Glutamate Uptake in Rabbit Brain Synaptosome

HyunJeLeeYongKeunKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.4 3 367-376 (10 pages)

HyunJeLeeYongKeunKim 저
...
- 3,000원
The effect of an organic peroxide, t-butylhydroperoxide (t-BHP), on glutamate uptake was studied in synaptosomes prepared from cerebral cortex. t-BHP inhibited the Na+-dependent glutamate uptake with no change in the Na+-independent uptake. This effect of t-BHP was not altered by addition of Ca2+ channel blockers (verapamil, diltiazem and nifedipine) or PLA2 inhibitors (dibucaine, butacaine and quinacrine). However, the effect was prevented by iron chelators (deferoxamine and phenanthroline)...
697.

Cloning of Mouse AQP-CD Gene

JinSupJung, JooInKim, SaeOkOh, MiYoungPark, HaeRhanBae, SangHoLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.2 9 195-200 (6 pages)

JinSupJung, JooInKim, SaeOkOh, MiYoungPark, HaeRhanBae, SangHoLee 저
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- 3,000원
Water transport in highly-permeable membranes is facilitated by some specialized pathways, which are called aquaporins (AQP). AQP1 (AQP-CHIP) is the first recognized aquaporin identified from red cells and renal proximal tubules. Up until now 4 other aquaporin homologs have been reported. Each aquaporin has its unique tissue distribution and regulatory mechanims. To elucidate molecular mechanisms for their transcription regulation and tissue-specific expression isolation of aquaporin genes is...
698.

The Influence of N6-cyclopentyladenosine and Magnesium on Norepinephrine Release in the Rat Hippocampus

YeungBongPark, SangDukPark, BongKyuChoi 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.2 3 135-142 (8 pages)

YeungBongPark, SangDukPark, BongKyuChoi 저
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- 3,000원
As it has been reported that the depolarization-induced norepinephrine (NE) release is modulated by activation of presynaptic A1-adenosine heteroreceptor and various lines of evidence indicate that A2-adenosine receptor also presents in hippocampus, and that the adenosine effect is magnesium dependent, the present study was undertaken to delineate the role of adenosine receptors in the modulation of hippocampal NE release. Slices from the rat hippocampus were equilibrated with [3H]-NE and the...
699.

[3H]MK-801 Binding to the Synaptic Membranes of Rat Forebrains Age-related Regulation by Glutamate, Glycine and Spermine

JungsookCho, JaeYangKong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.2 1 117-125 (9 pages)

JungsookCho, JaeYangKong 저
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- 3,000원
The N-methyl-D-aspartate (NMDA) receptor-mediated glutamatergic neurotransmission is involved in synaptic plasticity, developmental processes, learning and memory and many neuropathological disorders including age-related diseases. In the present study, regulation of the NMDA receptor properties by various ligands was investigated using [3H]MK-801 binding studies in the synaptic membranes of young and aged rat forebrains. The binding in the presence of glutamate and glycine increased...
700.

Effect of Cisplatin on Sodium-Dependent Hexose Transport in LLC-PK1 Renal Epithelial Cells

SukKyuLee, JeeYeunKim, TaiHyunYu, KyoungRyongKim, KwangHyukKim, YangSaengPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.1 5 35-43 (9 pages)

SukKyuLee, JeeYeunKim, TaiHyunYu, KyoungRyongKim, KwangHyukKim, YangSaengPark 저
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- 3,000원
Cis-dichlorodiammine platinum II (Cisplatin), an effective chemotherapeutic agent, induces acute renal failure by unknown mechanisms. To investigate direct toxic effects of cisplatin on the renal proximal tubular transport system, LLC-PK1 cell line was selected as a cell model and the sugar transport activity was evaluated during a course of cisplatin treatment. Cells grown to confluence were treated with cisplatin for 60 min, washed, and then incubated for up to 5 days. At appropriate...

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