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271.

Mechanism of Pituitary Adenylate Cyclase-Activating Polypeptide- Induced Inhibition on Catecholamine Secretion Evoked by Cholinergic Stimulation and Membrane Depolarization in the Rat Adrenal Gland

Dong-YoonLim, Jeong-WonKang, Young-JoKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.3 12 339-350 (12 pages)

Dong-YoonLim, Jeong-WonKang, Young-JoKim 저
...
- 4,100원
The present study was attempted to examine the effect of pituitary adenylate cyclase-activating polypeptide (PACAP) on catecholamine (CA) secretion evoked by cholinergic stimulation, membrane depolarization and calcium mobilization from the isolated perfused rat adrenal gland. The perfusion of PACAP (10 nM) into an adrenal vein for 60 min produced a great inhibition in CA secretion evoked by ACh (5.32⁓10⁣3 M), high K⁢ (5.6⁓10⁣2 M), DMPP (10⁣4 M for 2 min),...
272.

Properties of Spontaneous Activity in Gastric Smooth Muscle

H.Suzuki, Y.Yamamoto, G.D.S.Hirst 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.2 1 119-125 (7 pages)

H.Suzuki, Y.Yamamoto, G.D.S.Hirst 저
...
- 3,000원
Mammalian gastric smooth muscles generate spontaneous rhythmic contractions which are associated with slow oscillatory potentials (slow waves) and spike potentials. Spike potentials are blocked by organic Ca2⁢-antagonists, indicating that these result from the activation of L-type Ca2⁢-channel. However, the cellular mechanisms underlying the generation of slow wave remain unclear. Slow waves are insensitive to Ca2⁢-antagonists but are blocked by metabolic inhibitors or low...
273.

The Effects of Sera from Amyotrophic Lateral Sclerosis Patients on Neuromuscular Transmission and Calcium Channels in Mice

HaiDunYan, JimokKim, SungJunJung, JunKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 17 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.1 13 101-117 (17 pages)

HaiDunYan, JimokKim, SungJunJung, JunKim 저
...
- 4,600원
Amyotrophic lateral sclerosis (ALS) is a degenerative neuromuscular disease of unknown etiology in which the upper and lower motor neurons are progressively destroyed. Recent evidences support the role of autoimmune mechanisms in the pathogenesis of ALS. This study investigated the effects of sera from ALS patients on neuromuscular transmission in phrenic nerve-hemidiaphragm preparations and on calcium currents of single isolated dorsal root ganglion (DRG) cells in mice. Mice were injected with...
274.

Systemic Injection of Lidocaine Induce Expression of c-fos mRNA and Protein in Adult Rat Brain

Han-JungChae, Jang-SookKang, Seoung-BumCho, Byung-GwanJin, Suk-JunWon, Byung-JooGwag, Hyung-RyongKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.1 9 69-74 (6 pages)

Han-JungChae, Jang-SookKang, Seoung-BumCho, Byung-GwanJin, Suk-JunWon, Byung-JooGwag, Hyung-RyongKim 저
...
- 3,000원
Both direct and indirect environmental stress to brain were increase the expression of transcription factor c-fos in various populations of neurons. In this study, we examined whether the intraperitoneal injections of lidocaine at doses inducing convulsion within 10 min increased the level of c-fos mRNA and protein in forebrain areas. In situ hybridization using [35S]UTP-labeled antisense c-fos, cRNA increased c-fos mRNA levels though hippocampal formation, piriform cortex, septum,...
275.

Calcium Modulates Excitatory Amino Acid (EAA)- and Substance P-induced Rat Dorsal Horn Cell Responses

HongKeeShin, SokHanKang, InDukChung, KeeSoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.1 5 35-45 (11 pages)

HongKeeShin, SokHanKang, InDukChung, KeeSoonKim 저
...
- 4,000원
Excitatory amino acid (EAA) and substance P (SP) have been known to be primary candidates for nociceptive neurotransmitter in the spinal cord, and calcium ions are implicated in processing of the sensory informations mediated by EAA and SP in the spinal cord. In this study, we examined how Ca2⁢ modified the responses of dorsal horn neurons to single or combined iontophoretical application of EAA and SP in the rat. All the LT cells tested responded to kainate, whereas about 55% of low...
276.

Roles of Na+-Ca2+ Exchange in the Negative Force-Frequency Relationship

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

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.6 8 715-724 (10 pages)

ChangMannKoSoonJinKim 저
...
- 3,000원
decrease and the following plateau at test frequencies. Verapamil (3⁓10⁣5 M) pretreatment elicited frequency-dependent suppression of the twitch amplitudes, exaggerating the negative staircase. Monensin pretreatment enhanced not the peak but the plateau amplitudes in a concentration-dependent manner. When the Na⁢-Ca2⁢ exchange was blocked by Na⁢ and Ca2⁢ depletion in the Krebs Hensleit buffer (0 Na⁢-0 Ca2⁢ KHB), the twitch amplitudes increased in a...
277.

Moderate Elevation of Extracellular K+ Concentration Induces Vasorelaxation in Isolated Rat, Rabbit and Human Cerebral Arteries Role of Na Pump and Ba-Sensitive Process

DongHoKim, SungJoonKim, SangJinLee, SungJinPark, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.6 7 705-714 (10 pages)

DongHoKim, SungJoonKim, SangJinLee, SungJinPark, KiWhanKim 저
...
- 3,000원
K current) in the mechanism. Mulvany myograph was used to study 24 rats, 18 rabbits, and 10 humans MCAs (216⁑3 ㄍm, 347⁑7 ㄍm, and 597⁑39 ㄍm in diameter when stretched to a tension equivalent to 55 mmHg). High K⁢ (125 mM) and PGF2α (1∼10 ㄍM) induced concentration-dependent contractions in all 3 species, while histamine (10∼50 ㄍM) evoked contraction only in the rabbits and induced relaxation in the rats and humans. Addition of K⁢...
278.

Dual Action of d-Tubocurarine on Large-Conductance Ca2+-activated K+ Channels from Rat Brain Reconstituted into Planar Lipid Bilayer

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

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.5 2 549-553 (5 pages)

SungkwonChungJungHoonShin 저
...
- 1,500원
Using the planar lipid bilayer method, we investigated the effect of d-tubocurarine (dTC) on the extracellular side of large-conductance Ca2+-activated K+ channel from rat brain. When the initial open probability (Po) of the channel was relatively high, dTC decreased channel activity in a concentration dependent manner. In contrast, when the initial Po was lower, sub-micro molar dTC increased channel activity by destabilizing the closed states of the channel. Further addition of dTC up to micro...
279.

Effects of Prostaglandin E2 on the Spontaneous Contractions and Electrical Activities of the Antral Circular Muscle in Guinea-pig Stomach

JongYoonKim, SungJoonKim, TongMookKang, SangJinLee, JaeYeoulJun, InsukSo, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.3 11 361-368 (8 pages)

JongYoonKim, SungJoonKim, TongMookKang, SangJinLee, JaeYeoulJun, InsukSo, KiWhanKim 저
...
- 3,000원
most cases, however, the initial peak potentials of slow waves were depolarized more by PGE2 than those of control. The frequency of the slows wave was increased from 5.7⁑0.2 cycles/min to 6.5⁑0.2 (n=22). Voltage-operated Ca2⁢ currents were decreased by PGE2 (n=5). Voltage-operated K⁢ currents, both Ca-dependent and Ca-independent, were increased (n=5). These results suggest that PGE2 plays an important role in the modulation of gastric smooth muscle activities, and its...
280.

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
of 2.4⁑1.1 Hz. The average peak amplitude of the AHP following the spikes in these groups was 7.4⁑0.6 mV with respect to the resting membrane potential. Cells in MK-801 and lidocaine treated group (5 mg/kg, i.c.v.) had an average input resistance of 34.5⁑6.0 MΩ and an average time constant of 8.0⁑1.4 ms. The cells were firing spontaneously at an average discharge rate of 0.6⁑0.4 Hz. Upon depolarization of the membrane by 0.8 nA for 400 ms, all of the tested cells...

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