자료유형
발행기관
- 대한생리학회-대한약리학회(86)
- 대한생리학회(14)
- 대한약리학회(10)
- 대한수의학회(9)
- 대한신경정신의학회(8)
- 한국식물병리학회(6)
- 한국기초간호학회(5)
- 물리치료재활과학회(2)
- 이화여자대학교 교과교육연구소(2)
- 한국보건기초의학회(2)
- 한국철도학회(2)
- 대한전기학회(1)
- 영남의대학술지편집위원회(1)
- 인문사회과학기술융합학회(1)
- 한국농촌간호학회(1)
- 한국음악치료학회(1)
- 한국조명전기설비학회(1)
- 한국초등체육학회(1)
- 한방비만학회(1)
간행물
- THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY(86)
- 대한생리학회지(14)
- 대한약리학잡지(10)
- JOURNAL OF VETERINARY SCIENCE(8)
- 신경정신의학(8)
- JOURNAL OF KOREAN BIOLOGICAL NURSING SCIENCE(5)
- THE PLANT PATHOLOGY JOURNAL (5)
- PHYSICAL THERAPY REHABILITATION SCIENCE(2)
- 교과교육학연구(2)
- 한국보건기초의학회지(2)
- INTERNATIONAL JOURNAL OF RAILWAY(1)
- KOREAN JOURNAL OF VETERINARY RESEARCH(구 대한수의학회지)(1)
- 대한한방비만학회지(1)
- 식물병연구(1)
- 영남의대 학술지(1)
- 예술인문사회융합멀티미디어논문지(1)
- 전기학회논문지. THE TRANSACTIONS OF THE KOREAN INSTITUTE OF ELECTRICAL ENGINEERS. P(1)
- 조명-전기설비학회논문지(1)
- 한국농촌간호학회 학술대회지(1)
- 한국음악치료학회지(1)
- 한국철도학회 논문집(1)
- 한국초등체육학회지(1)
전체 선택해제
총 154건 검색
본문검색 결과만 보기
-
Inhibition of Pacemaker Activity of Interstitial Cells of Cajal by Hydrogen Peroxide via Activating ATP-sensitive K+ Channels
SeokChoi, ShankarPrasadParajuli, HyeonSookCheong, DilliParasadPaudyal, CheolHoYeum, PyungJinYoon, JaeYeoulJun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2007, Vol.11 No.1 3 15-20 (6 pages)
ICC, H2O2 hyperpolarized the membrane potential under currents clamp mode and decreased both the frequency and amplitude of pacemaker currents and increased the resting currents in outward direction under voltage clamp mode. Also, H2O2 inhibited the pacemaker currents in a dose-dependent manner. Because the properties of H2O2 action on pacemaker currents were same as the effects of pinacidil (ATP-sensitive K channels opener), we tested the effects of glibenclamide (ATP-sensitive K... -
The Role of Mitochondrial ATP-sensitive Potassium Channel on Intestinal Pacemaking Activity
ByungJooKim, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.4 4 209-214 (6 pages)
glibenclamide, an inhibitor of the ATP sensitive K channels, we could find two examples. If pacemaking activity of ICCs was irregulating, pacemaking activity of ICCs was changed into regulating and if in normal conditions, membrane potential amplitude was increased. At 50μM glibenclamide, the resting membrane potential was depolarized. At 3mM 5-HDA, an inhibitor of the mitoKATP channels, inhibited the pacemaking activity of ICCs. Both the amplitude and the frequency were decreased. At 5... -
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)
However, in the patches excised from the metabolically compromised cells, DTT increased the channel activity. DTT had no effect on the inhibitory action by ATP, showing that thiol oxidation was not involved in the blocking mechanism of ATP. There were no statistical difference in the single channel conductance for the oxidized and reduced states of the channel. Analysis of the open and closed time distributions showed that DTNB had no effect on open and closed time distributions shorter than 4... -
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)
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 were elicited by the application of diazoxide, an activator of KATP channels. Glibenclamide (10μM), a KATP... -
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)
increased burst duration and decreased the interburst interval without changes in open and closed time distributions shorter than 5 ms. TFA diminished ATP sensitivity of KATP channels in a concentration-response relationship for ATP. Conclusions: TFA, a metabolite of isoflurane, enhanced KATP channel activity in a concentration-dependent fashion. These results imply that TFA could mediate isoflurane-induced cardioprotection via KATP channel activation during myocardial ischemia and reperfusion. -
Evidence for Adenosine Triphosphate (ATP) as an Excitatory Neurotransmitter in Guinea-Pig Gastric Antrum
TongMookKang, WenxieXu, SungJoonKim, SeungCheolAhn, YoungChulKim, InsukSo, MyoungKyuPark, Dae-YongUhm, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.2 6 165-174 (10 pages)
(ATP) acts as an excitatory neurotransmitter in guinea-pig gastric smooth muscle. In an organ bath system, isometric force of the circular smooth muscle of guinea-pig gastric antrum was measured in the presence of atropine and guanethidine. Under electrical field stimulation (EFS) at high frequencies (＞20 Hz), NO-mediated relaxation during EFS was followed by a strong contraction after the cessation of EFS (a "rebound-contraction"). Exogenous ATP mimicked the rebound-contraction. A... -
The Effects of Intracellular Monocarboxylates on the ATP-sensitive Potassium Channels in Rabbit Ventricular Myocytes
NariKim, JinHan, Eui-YongKim, Won-KyungHo, YungE.Earm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.5 6 581-589 (9 pages)
of the ATP-sensitive potassium channels (KATP channels) is yet to fully explained. This study was carried out to investigate the effects of intracellular application of monocarboxylates (acetate, formate, lactate, and pyruvate) on KATP channels in isolated rabbit ventricular myocytes. Single channel currents of KATP channels were recorded using the excised inside-out or permeabilized attached (open-cell) patch-clamp technique at room temperature. Intracellular application of acetate, formate and... -
콘크리트 슬래브궤도에서 철근이 ATP시스템 지상자의 주파수에 미치는 영향
김민석, 윤인모, 고준석, 이종우, Kim. Min-Seok, Yoon. In-Mo, Ko. Jun-Seog, Lee. Jong-Woo 한국철도학회 한국철도학회 논문집 7 Pages
한국철도학회 한국철도학회 논문집 2008, Vol.11 No.6 536-542 (7 pages)
신호에 의해서 열차의 차상자에 잘못된 신호가 전송될 수 있다. 입력전류신호의 왜곡을 줄이기 위한 방법으로 철근에 유도되는 전류와 주파수를 구하여 해당 주파수를 ATP시스템의 지상자 주파수로 사용하지 않거나, 철근을 절연시켜 철근과 ATP시스템 지상자간에 유도현상을 억제할 수 있다. 본 논문에서는 콘크리트 슬래브궤도에서 ATP시스템의 지상자와 철근의 모델을 전기적으로 표현하였고, 모델에 요구되는 값들을 Maxwell 프로그램을 이용하여 구하였다. 또한 모델로부터 ATP시스템인 KVB시스템, ERTMS/ETCS시스템에서 사용하고... -
Effect of phosphorus deficiency on erythrocytic morphology and function in cows
Ziwei Zhang, Mingyu Bi, Jie Yang, Haidong Yao, Zhonghua Liu, Shiwen Xu 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 3호 10 333-340 (8 pages)
The aim of this study was to evaluate the influence of phosphorus (P) deficiency on the morphological and functional characteristics of erythrocytes in cows. Forty Holstein-Friesian dairy cows in mid-lactation were randomly divided into two groups of 20 each and were fed either a low-P diet (0.03% P/kg dry matter [DM]) or a control diet (0.36% P/kg DM). Red blood cell (RBC) indices results showed RBC and mean corpuscular hemoglobin decreased while mean corpuscular volume increased significantly... -
pH-dependent modulation of intracellular free magnesium ions with ion- selective electrodes in papillary muscle of guinea pig
Shang-Jin Kim, In-Gook Cho, Hyung-Sub Kang, Jin-Shang Kim 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2006, 제 7권 제 1호 5 31-36 (6 pages)
A change in pH can alter the intracellular concentration of electrolytes such as intracellular Ca2+ and Na+ ([Na+]i) that are important for the cardiac function.For the determination of the role of pH in the cardiac magnesium homeostasis, the intracellular Mg 2+ concentration ([Mg 2+]i), membrane potential and contraction in the papillary muscle of guinea pigs using ion-selective electrodes changing extracellular pH ([pH]o)or intracellular pH ([pH ]i )were measured in this study. A high... -
Effects of Protein Source and Energy Substrates on the In Vitro Development of Bovine Embryos in a Two-step Culture System
Kwang-taek Lim, Byeong-chun Lee, Sung-keun Kang, Woo-suk Hwang 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2003, 제 4권 제 1호 11 73-78 (6 pages)
two-step culture system. Moreover, the supplementation of different protein sources (BSA-V, BSA-FAF and FBS) during IVC did not affect the frequency of blastocyst development. Using two-step culture, embryos were cultured in protein-free media for an initial 5 days. This was then followed by the same culture media or an FBS supplemented media. The developmental rates of blastocysts in the FBS containing group were significantly higher than in the replaced with no serum containing group. Embryos... -
Effects of intermittent ladder-climbing exercise training on mitochondrial biogenesis and endoplasmic reticulum stress of the cardiac muscle in obese middle-aged rats
KijinKim, NayoungAhn, SuryunJung, SoleePark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.6 8 633-641 (9 pages)
The aim of this study is to investigate the effects of intermittent ladder-climbing exercise training on mitochondrial biogenesis and ER stress of the cardiac muscle in high fat diet-induced obese middle-aged rats. We induced obesity over 6 weeks of period in 40 male Sprague-Dawley rats around 50 weeks old, and were randomly divided into four experimental groups: chow, HFD, exercise+HFD, and exercise+chow. The exercising groups underwent high-intensity intermittent training using a... -
Dust particles-induced intracellular Ca2+ signaling and reactive oxygen species in lung fibroblast cell line MRC5
DongUnLee, MinJeongJi, JungYunKang, SunYoungKyung, JeongHeeHong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.3 7 327-334 (8 pages)
Epidemiologic interest in particulate matter (PM) is growing particularly because of its impact of respiratory health. It has been elucidated that PM evoked inflammatory signal in pulmonary epithelia. However, it has not been established Ca2+ signaling mechanisms involved in acute PM-derived signaling in pulmonary fibroblasts. In the present study, we explored dust particles PM modulated intracellular Ca2+ signaling and sought to provide a therapeutic strategy by antagonizing PM-induced... -
Chronic Ca2+ influx through voltage-dependent Ca2+ channels enhance delayed rectifier K+ currents via activating Src family tyrosine kinase in rat hippocampal neurons
Yoon-SilYang, Sang-ChanJeon, Dong-KwanKim, Su-YongEun, Sung-CherlJung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.2 14 259-265 (7 pages)
Excessive influx and the subsequent rapid cytosolic elevation of Ca2+ in neurons is the major cause to induce hyperexcitability and irreversible cell damage although it is an essential ion for cellular signalings. Therefore, most neurons exhibit several cellular mechanisms to homeostatically regulate cytosolic Ca2+ level in normal as well as pathological conditions. Delayed rectifier K+ channels (IDR channels) play a role to suppress membrane excitability by inducing K+ outflow in various... -
Effects of acidic pH on voltage-gated ion channels in rat trigeminal mesencephalic nucleus neurons
Jin-EonHan, Jin-HwaCho, In-SunChoi, Do-YeonKim, Il-SungJang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.2 9 215-223 (9 pages)
The effects of acidic pH on several voltage-dependent ion channels, such as voltage-dependent K+ and Ca2+ channels, and hyperpolarization-gated and cyclic nucleotide-activated cation (HCN) channels, were examined using a whole-cell patch clamp technique on mechanically isolated rat mesencephalic trigeminal nucleus neurons. The application of a pH 6.5 solution had no effect on the peak amplitude of voltage-dependent K+ currents. A pH 6.0 solution slightly, but significantly inhibited the peak... -
Myometrial relaxation of mice via expression of two pore domain acid sensitive K+ (TASK-2) channels
Kyu-SangKyeong, SeungHwaHong, YoungChulKim, *, WoongChoi, SunChulMyung, MooYeolLee, RaYoungYou, ChanHyungKim, SoYeonKwon, HikaruSuzuki, Yeo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.5 13 547-556 (10 pages)
Myometrial relaxation of mouse via expression of two‐pore domain acid sensitive (TASK) channels was studied. In our previous report, we suggested that two‐pore domain acid‐sensing K+ channels (TASK-2) might be one of the candidates for the regulation of uterine circular smooth muscles in mice. In this study, we tried to show the mechanisms of relaxation via TASK-2 channels in marine myometrium. Isometric contraction measurements and patch clamp technique were used to verify... -
Facilitation of AMPA receptor-mediated steady-state current by extrasynaptic NMDA receptors in supraoptic magnocellular neurosecretory cells
YoonHyoungPai, ChaeSeongLim, Kyung-AhPark, HyunSilCho, Gyu-SeungLee, YongSupShin, Hyun-WooKim, ByeongHwaJeon, SeokHwaYoon, JinBongPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.4 12 425-432 (8 pages)
In addition to classical synaptic transmission, information is transmitted between cells via the activation of extrasynaptic receptors that generate persistent tonic current in the brain. While growing evidence supports the presence of tonic NMDA current (INMDA) generated by extrasynaptic NMDA receptors (eNMDARs), the functional significance of tonic INMDA in various brain regions remains poorly understood. Here, we demonstrate that activation of eNMDARs that generate INMDA facilitates the... -
Comparison of electrophysiological effects of calcium channel blockers on cardiac repolarization
Hyang-AeLee, Sung-AeHyun, Sung-GurlPark, Ki-SukKim, SungJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.1 15 119-127 (9 pages)
Dihydropyridine (DHP) calcium channel blockers (CCBs) have been widely used to treat of several cardiovascular diseases. An excessive shortening of action potential duration (APD) due to the reduction of Ca2+ channel current (ICa) might increase the risk of arrhythmia. In this study we investigated the electrophysiologicaleffects of nicardipine (NIC), isradipine (ISR), and amlodipine (AML) on the cardiac APD in rabbit Purkinje fibers, voltage-gated K+ channel currents (IKr, IKs) and... -
Pituitary Adenylate Cyclase-activating Polypeptide Inhibits Pacemaker Activity of Colonic Interstitial Cells of Cajal
MeiJinWu, KeunHongKee, JisunNa, SeokWonKim, YouinBae, DongHoonShin, SeokChoi, JaeYeoulJun, Han-SeongJeong, Jong-SeongPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.5 6 435-440 (6 pages)
frequency in a dose-dependent manner (from 0.1 nM to 100 nM). To investigate cyclic AMP (cAMP) involvement in the effects of PACAP on ICC, SQ-22536 (an inhibitor of adenylate cyclase) and cell-permeable 8-bromo-cAMP were used. SQ-22536 decreased the frequency of pacemaker potentials, and cell-permeable 8-bromo-cAMP increased the frequency of pacemaker potentials. The effects of SQ-22536 on pacemaker potential frequency and membrane hyperpolarization were rescued by co-treatment with glibenclamid... -
Chronic Alcohol Consumption Results in Greater Damage to the Pancreas Than to the Liver in the Rats
Seong-SuLee, Oak-KeeHong, AnesJu, Myung-JunKim, Bong-JoKim, Sung-RaeKim, Won-HoKim, Nam-HanCho6, Moo-IlKang, Sung-KooKang, Dai-JinKim, Soon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.4 2 309-318 (10 pages)
Alcohol consumption increases the risk of type 2 diabetes. However, its effects on prediabetes or early diabetes have not been studied. We investigated endoplasmic reticulum (ER) stress in the pancreas and liver resulting from chronic alcohol consumption in the prediabetes and early stages of diabetes. We separated Otsuka Long-Evans Tokushima Fatty (OLETF) rats, a type-2 diabetic animal model, into two groups based on diabetic stage: prediabetes and early diabetes were defined as occurrence... -
Distinct Cellular Calcium Metabolism in Radiation-sensitive RKO Human Colorectal Cancer Cells
YunTaiKim, SooShinJo, YoungJunPark, MyungZaLee, ChangKookSuh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.6 10 509-516 (8 pages)
Radiation therapy for variety of human solid tumors utilizes mechanism of cell death after DNA damage caused by radiation. In response to DNA damage, cytochrome c was released from mitochondria by activation of pro-apoptotic Bcl-2 family proteins, and then elicits massive Ca2＋ release from the ER that lead to cell death. It was also suggested that irradiation may cause the deregulation of Ca2＋ homeostasis and trigger programmed cell death and regulate death specific enzymes. Thus, in this... -
Effects of Lubiprostone on Pacemaker Activity of Interstitial Cells of Cajal from the Mouse Colon
Han-YiJiao, DongHyunKim, JungSukKi, KwonHoRyu, SeokChoi, JaeYeoulJun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.4 9 341-346 (6 pages)
(a calcium [Ca2＋]-dependent K＋ channel blocker) did not block the response to lubiprostone. However, glibenclamide (an ATP-sensitive K＋ channel blocker) blocked the response to lubiprostone. Similar to lubiprostone, pinacidil (an opener of ATP-sensitive K＋ channel) hyperpolarized the membrane and inhibited the generation of pacemaker potentials, and these effects were inhibited by glibenclamide. These results suggest that lubiprostone can modulate the pacemaker potentials of colonic ICCs via... -
Potassium Currents in Isolated Deiters' Cells of Guinea Pig
JongWooChung, EuiCholNam, WonTaeKim, JaeBoumYoum, ChaeHunLeem 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.6 10 537-546 (10 pages)
Deiters' cells are the supporting cells in organ of Corti and are suggested to play an important role in biochemical and mechanical modulation of outer hair cells. We successfully isolated functionally different K+ currents from Deiters’ cells of guinea pig using whole cell patch clamp technique. With high K+ pipette solution, depolarizing step pulses activated strongly outward rectifying currents which were dose-dependently blocked by clofilium, a class III anti-arrhythmic K+ channel blocker.... -
Spontaneous Electrical Activity of Cultured Interstitial Cells of Cajal from Mouse Urinary Bladder
Sun-OuckKim, Han-SeongJeong, SujeongJang, Mei-JinWu, JongKyuPark, Han-YiJiao, JaeYeoulJun, Jong-SeongPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.6 9 531-536 (6 pages)
cultured ICCs were nifedipine-sensitive. Carbachol and ATP, both excitatory neurotransmitters in the urinary bladder, depolarized the membrane and increased the frequency of spike potentials. Carbachol increased [Ca2+]i oscillations and basal Ca2+ levels, which were blocked by atropine. These results suggest that cultured ICCs from the urinary bladder retain rhythmic phenotypes similar to the spontaneous electrical activities recorded from the intact urinary bladder. Therefore, we suggest that... -
Functional Characterization of ABCB4 Mutations Found in Low Phospholipid-Associated Cholelithiasis (LPAC)
TaeHeeKim, HyoJinPark, JiHaChoi 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.6 8 525-530 (6 pages)
Multidrug resistance 3 (MDR3) is expressed on the canalicular membrane of the hepatocytes and plays an important role in protecting the liver from bile acids. Altered ABCB4 gene expression can lead to a rare hepatic disease, low phospholipid-associated cholelithiasis (LPAC). In this study, we characterized 3 ABCB4 mutations in LPAC patients using various in vitro assay systems. We first measured the ability of each mutant to transport paclitaxel and then the mechanisms by which these mutations... -
The TREK2 Channel Is Involved in the Proliferation of 253J Cell, a Human Bladder Carcinoma Cell
Kyung-SunPark, MinHoHan, HeeKyungJang, Kyung-AKim, Eun-JongCha, Wun-JaeKim, YungHyunChoi, YangmiKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.6 6 511-516 (6 pages)
Bladder cancer is the seventh most common cancer in men that smoke, and the incidence of disease increases with age. The mechanism of occurrence has not yet been established. Potassium channels have been linked with cell proliferation. Some two-pore domain K＋ channels (K2P), such as TASK3 and TREK1, have recently been shown to be overexpressed in cancer cells. Here we focused on the relationship between cell growth and the mechanosensitive K2P channel, TREK2, in the human bladder cancer cell... -
Differential Effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine on Motor Behavior and Dopamine Levels at Brain Regions in Three Different Mouse Strains
Keun-SungLee, Jin-KooLee, Hyung-GunKim, HakRimKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.1 13 89-97 (9 pages)
Developing an animal model for a specific disease is very important in the understanding of the underlying mechanism of the disease and allows testing of newly developed new drugs before human application. However, which of the plethora of experimental animal species to use in model development can be perplexing. Administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) is a very well known method to induce the symptoms of Parkinson's disease in mice. But, there is very limited... -
Mechanisms of Motility Change on Trinitrobenzenesulfonic Acid- Induced Colonic Inflammation in Mice
GabJinCheon, YuanCui, Dong-SooYeon, Seong-ChunKwon, Byong-GonPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.6 10 437-446 (10 pages)
Ulcerative colitis is an inflammatory bowel disease (IBD) characterized by recurrent episodes of colonic inflammation and tissue degeneration in human or animal models. The contractile force generated by the smooth muscle is significantly attenuated, resulting in altered motility leading to diarrhea or constipation in IBD. The aim of this study is to clarify the altered contractility of circular and longitudinal smooth muscle layers in proximal colon of trinitrobenzen sulfonic acid... -
Wide Spectrum of Inhibitory Effects of Sertraline on Cardiac Ion Channels
Hyang-AeLee, Ki-SukKim, Sung-AeHyun, Sung-GurlPark, SungJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.5 6 327-332 (6 pages)
Sertraline is a commonly used antidepressant of the selective serotonin reuptake inhibitors (SSRIs) class. In these experiments, we have used the whole cell patch clamp technique to examine the effects of sertraline on the major cardiac ion channels expressed in HEK293 cells and the native voltage-gated Ca2＋ channels in rat ventricular myocytes. According to the results, sertraline is a potent blocker of cardiac K＋ channels, such as hERG, IKs and IK1. The rank order of inhibitory potency was... -
A Computational Model of Cytosolic and Mitochondrial [Ca2＋] in Paced Rat Ventricular Myocytes
JaeBoumYoum, SeongWooChoi, ChangHanJang, HyoungKyuKim, ChaeHunLeem, NariKim, JinHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 23 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.4 5 217-239 (23 pages)
of Ca2＋-induced Ca2＋ release, the relation between stimulus frequency and the amplitude of Ca2＋ transients was examined under the low density (1/10 of control) of L-type Ca2＋ channel in model simulation, where the relation was reversed. In experiment, block of Ca2＋ uniporter on mitochondrial inner membrane significantly reduced the amplitude of mitochondrial Ca2＋ transients, while it failed to affect the cytosolic Ca2＋ transients. In computer simulation, the amplitude of cytosolic Ca2＋... -
5-Hydroxytryptamine Generates Tonic Inward Currents on Pacemaker Activity of Interstitial Cells of Cajal from Mouse Small Intestine
PawanKumarShahi, SeokChoi, DongChuanZuo, CheolHoYeum, PyungJinYoon, JunLee, YoungDaeKim, ChanGukPark, ManYooKim, HyeRangShin, HyunJungOh, J 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.3 2 129-135 (7 pages)
In this study we determined whether or not 5-hydroxytryptamine (5-HT) has an effect on the pacemaker activities of interstitial cells of Cajal (ICC) from the mouse small intestine. The actions of 5-HT on pacemaker activities were investigated using a whole-cell patch-clamp technique, intracellular Ca2＋ ([Ca2＋]i) analysis, and RT-PCR in ICC. Exogenously-treated 5-HT showed tonic inward currents on pacemaker currents in ICC under the voltage-clamp mode in a dose-dependent manner. Based on RT-PCR... -
Spontaneous Contractions Augmented by Cholinergic and Adrenergic Systems in the Human Ureter
HyunWooLee, CheolHeeBaak, MooYeolLee, YoungChulKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.1 6 37-42 (6 pages)
augmented the frequency of the spontaneous contractions. The cumulative application of NE also augmented the frequency in a dose-dependent manner. The effects of NE application were inhibited by concomitant application of 10−5 M glibenclamide. Receptor tyrosine kinase (c-kit) staining revealed abundant ICCs only in proximal tissues. Therefore, spontaneous contractions of the human ureter might be modulated by ICC in the proximal region, and the actions might be related with the activation... -
P2X and P2Y Receptors Mediate Contraction Induced by Electrical Field Stimulation in Feline Esophageal Smooth Muscle
YoungRaeCho, HyeonSoonJang, WonKim, SunYoungPark, UyDongSohn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.5 10 311-316 (6 pages)
by a cholinergic mechanism and other neurotransmitters. NO, ATP, calcitonin gene-related peptide (CGRP), and substance P are released by EFS. To investigate the purinergic mechanism involved in the EFS-induced contraction, purinegic receptors antagonists were used. Suramine, a non-selective P2 receptor antagonist, reduced the contraction induced by EFS. NF023 (10−7∼10−4 M), a selective P2X antagonist, inhibited the contraction evoked by EFS. Reactive blue (10−6∼10−4 M),... -
Caffeine and 2-Aminoethoxydiphenyl Borate (2-APB) Have Different Ability to Inhibit Intracellular Calcium Mobilization in Pancreatic Acinar Cell
KyungJinChoi, KabSungKim, SeHoonKim, DongKwanKim, HyungSeoPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.2 7 105-111 (7 pages)
Inositol 1,4,5-trisphosphate receptors (InsP3Rs) modulate Ca2＋ release from intracellular Ca2＋ store and are extensively expressed in the membrane of endoplasmic/sarcoplasmic reticulum and Golgi. Although caffeine and 2-aminoethoxydiphenyl borate (2-APB) have been widely used to block InsP3Rs, the use of these is limited due to their multiple actions. In the present study, we examined and compared the ability of caffeine and 2-APB as a blocker of Ca2＋ release from intracellular Ca2＋ stores... -
The Inhibitory Effects of Hydrogen Sulfide on Pacemaker Activity of Interstitial Cells of Cajal from Mouse Small Intestine
ShankarPrasadParajuli, SeokChoi, JunLee, YoungDaeKim, ChanGukPark, ManYooKim, HyunIlKim, CheolHoYeum, JaeYeoulJun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.2 4 83-89 (7 pages)
inward current on pacemaker activity in ICC at low concentrations (50 and 100</SUP>ՌM), but at high concentration (500ՌM and 1 mM) it seemed to cause light tonic inward currents and then inhibited pacemaker amplitude and pacemaker frequency, and also an increase in the resting currents in the outward direction. Glibenclamide or other potassium channel blockers (TEA, BaCl2, apamin or 4-aminopydirine) did not have an effect on NaHS-induced action in ICC. The exogenous application... -
Relaxation Patterns of Human Gastric Corporal Smooth Muscle by Cyclic Nucleotides Producing Agents
YoungChulKim, WoongChoi, RohyunSung, HeonKim, RaYoungYou, Seon-MeePark, SeiJinYoun, Mi-JungKim, Young-JinSong, Wen-XieXu, SangJinLee, Hyo-Y 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.6 15 503-510 (8 pages)
To elucidate the mechanism of cyclic nucleotides, such as adenosine 3',5'-cyclic monophosphate (cAMP) and guanosine 3',5'-cyclic monophosphate (cGMP), in the regulation of human gastric motility, we examined the effects of forskolin (FSK), isoproterenol (ISO) and sodium nitroprusside (SNP) on the spontaneous, high K＋ and acetylcholine (ACh)-induced contractions of corporal circular smooth muscle in human stomach. Gastric circular smooth muscle showed regular spontaneous contraction, and FSK,...
