자료유형
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- 대한생리학회-대한약리학회(53)
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- THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY(53)
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MAPK Activation and Cell Viability after H2O2 Stimulation in Cultured Feline Ileal Smooth Muscle Cells
HyunJuSong, JiHoonJeong, DongKyuLee, TaiSangLee, YoungSilMin, UyDongSohn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.6 8 339-344 (6 pages)
cultured ileal smooth muscle cells (ISMC) after stimulation with H2O2. Trypan blue method revealed that the cell viability of ISMC treated with 1 mM H2O2 was not different from that of controls at up to 2 h time point, while treatment of ISMC with 1 mM H2O2 for 48 h finally induced significant decrease in the cell viability. Therefore, we evaluated whether H2O2 was capable of ERKs activation in ISMC for the short-term exposure and examined whether tyrosine kinase was involved in the process of... -
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)
Isc. Carbachol (CCh)-induced increase of Isc was prolonged by the addition of VacA to the mucosal side only. The effect was unaltered by the addition of niflumic acid. VacA did not show cytopathic effects. These studies indicate that VacA is a nonlethal toxin that acts in a polar manner on T84 monolayers to potentiate Cl secretion and the response to CCh secretion without decrease in monolayer resistance. VacA may contribute to diarrhea diseases in human intestinal epithelial cells. -
PGE2 Regulates Pacemaker Currents through EP2-Receptor in Cultured Interstitial Cells of Cajal from Murine Small Intestine
SeokChoi, KyungWonCho, Jong-HyunReu, Jun-SooKim, HyunSikMun, MyungYoungKim, KwangChulPark, GwangSikHeo, SungJongChang, CheolHoYeum, PyungJ 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.3 6 153-160 (8 pages)
The interstitial cells of Cajal (ICCs) are the pacemaker cells in gastrointestinal tract and generate electrical rhythmicity in gastrointestinal muscles. Therefore, ICC may be modulated by endogenous agents such as neurotransmitter, hormones, and prostaglandins (PGs). In the present study, we investigated the effects of prostaglandins, especially PGE2, on pacemaker currents in cultured ICCs from murine small intestine by using whole-cell patch clamp techniques. ICCs generated spontaneous slow... -
Characterization of Intermediate Conductance K+ Channels in Submandibular Gland Acinar Cells
Sung-ManCho, ZhengGenPiao, YoonBaeKim, Joong-SooKim, KyungpyoPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.6 5 305-309 (5 pages)
6 cells and its average conductance was 152⁑7 pS (n=3). The conductance of the another types of K channel was estimated as 71⁑7 pS (n=6). On the basis of the conductance of this channel, we defined this channel as intermediate conductance K (IK) channels, which were observed from all 6 cells we studied. When we increased Ca2 concentration of the bath solution in inside-out mode, the IK channel activity was greatly increased, suggesting this channel is Ca2... -
THI 52 Inhibits Inducible Nitric Oxide Synthase Gene Expression in RAW 264.7 Cells and Rat Lung Tissue by Lipopolysaccharide
BogKyuLee, MinKyuPark, HanGeukSeo, HyeSookYun-Choi, DuckHyungLee, KiChurlChang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.5 10 443-449 (7 pages)
30 min prior to LPS. When measured iNOS activity, treatment of THI 52 concentration-dependently reduced the enzyme activity in RAW 264.7 cells activated with LPS plus IFN-γ. Likewise, iNOS activity was significantly reduced in lung tissues taken those rats that were injected THI 52 prior to LPS injection compared with LPS injection alone. These results strongly suggest that THI 52 can suppress iNOS gene expression induced by LPS, and restore the vascular contractility to PE. Thus, THI 52, a new... -
Effect of Imipramine on Calcium Utilization of Single Cells Isolated from Canine Detrusor
Ho-ShikShim, Hyoung-ChulChoi, Young-SookJeong, Jong-HoKim, Kwang-YounLee, Uy-DongSohn, Jeoung-HeeHa, Won-JoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.4 9 439-445 (7 pages)
single cells isolated from canine detrusor. 2 mm thick smooth muscle chops were incubated in 0.12% collagenase solution at 36oC, and aerated with 95% O2/5% CO2, and then cell suspension was examined. Acetylcholine (ACh) evoked a concentration-dependent contraction of the isolated detrusor cells in normal physiologic salt solution (PSS), and the ACh-induced contraction was significantly inhibited by imipramine. In Ca2-free PSS, ACh-induced contraction was less than those in normal PSS and... -
Activation of SAPK and Increase in Bak Levels during Ceramide and Indomethacin-Induced Apoptosis in HT29 Cells
JuHoKim, SaeOckOh, SungSookJun, JinSupJung, JaeSukWoo, YongKeunKim, SangHoLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.1 10 75-82 (8 pages)
colon cancer cells through the cyclooxygenase-independent pathways, and that may be mediated by generation of ceramide. In this study, we compared effects of ceramide and indomethacin on important modulators of apoptotic processes in HT29 cells, a human colon cancer cell line. Ceramide and indomethacin induced apoptosis dose- and time- dependently. Ceramide and indomethacin increased stress-activated protein kinase (SAPK) activity, and decreased mitogen-activated protein kinase (MAPK) activity.... -
The Role of Intracellular Mg2+ in Regulation of Ca2+-activated K+ Channel in Pulmonary Arterial Smooth Muscle Cells of the Rabbit
SukHoLeeMyoungKyuPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.5 9 611-616 (6 pages)
Although the Ca2+-activated K+ (IK,Ca) channel is known to play an important role in the maintenance of resting membrane potential, the regulation of the channel in physiological condition is not completely understood in vascular myocytes. In this study, we investigated the role of cytoplasmic Mg2+ on the regulation of IK,Ca channel in pulmonary arterial myocytes of the rabbit using the inside-out patch clamp technique. Mg2+ increased open probability (Po), but decreased the magnitude of single... -
The K+ Channels of Colonic Crypts and Their Regulation
R.Greger, K.Hamm, R.Warth, M.Nielsen, B.Wey, D.Ecke, N.Riedemann, U.Gerlach, A.E.Busch, H.C.Englert, M.Hropot, H.J.Lang, M.Bleich 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.4 1 403-409 (7 pages)
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Modulation of Outward Potassium Currents by Nitric Oxide in Longitudinal Smooth Muscle Cells of Guinea-pig Ileum
Seong-ChunKwon, SeJoongRim, Bok-SoonKang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.2 11 225-232 (8 pages)
currents in nitric oxide-induced relaxation in intestinal smooth muscle, we used whole-cell patch clamp technique in freshly dispersed guinea-pig ileum longitudinal smooth muscle cells. When cells were held at 60 mV and depolarized from 40 mV to 50 mV in 10 mV increments, sustained outward K+ currents were evoked. The outward K+ currents were markedly increased by the addition of 10 ㄍM sodium nitroprusside (SNP). 10 ㄍM S-nitroso-N-acetylpenicillamine (SNAP) and...
