자료유형
발행기관
- 대한생리학회-대한약리학회(333)
- 대한생리학회(72)
- 대한수의학회(72)
- 대한약리학회(44)
- 한국식물병리학회(32)
- 한국기초간호학회(21)
- 대한신경정신의학회(17)
- 한국탄소학회(9)
- 대한치과교정학회(5)
- 물리치료재활과학회(3)
- 한국보건기초의학회(3)
- 한국열환경공학회(3)
- 한국헬스커뮤니케이션학회(3)
- 대한치과이식임플란트학회(2)
- 한국웰니스학회(2)
- 대한신경외과학회(1)
- 대한치과보존학회(1)
- 대한흉부외과학회(1)
- 인문사회과학기술융합학회(1)
- 한국곤충학회(1)
- 한국교육방법학회(1)
- 한국노인간호학회(1)
- 한국습지학회(1)
- 한국의학물리학회(1)
- 한국초전도학회(1)
- 한방비만학회(1)
- 환태평양유아교육연구학회(1)
간행물
- THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY(333)
- 대한생리학회지(72)
- JOURNAL OF VETERINARY SCIENCE(59)
- 대한약리학잡지(44)
- JOURNAL OF KOREAN BIOLOGICAL NURSING SCIENCE(21)
- THE PLANT PATHOLOGY JOURNAL (21)
- 신경정신의학(16)
- 식물병연구(11)
- KOREAN JOURNAL OF VETERINARY RESEARCH(구 대한수의학회지)(10)
- CARBON LETTERS(9)
- THE KOREAN JOURNAL OF ORTHODONTICS(5)
- PHYSICAL THERAPY REHABILITATION SCIENCE(3)
- 대한수의학회 학술대회발표집(3)
- 한국보건기초의학회지(3)
- 헬스커뮤니케이션연구(3)
- JOURNAL OF DENTAL IMPLANT RESEARCH(2)
- 열환경공학(2)
- 한국웰니스학회지(2)
- ASIA-PACIFIC JOURNAL OF RESEARCH IN EARLY CHILDHOOD EDUCATION(1)
- JOURNAL OF KOREAN NEUROSURGICAL SOCIETY(1)
- KOREAN JOURNAL OF ENTOMOLOGY(1)
- PROGRESS IN SUPERCONDUCTIVITY(1)
- PSYCHIATRY INVESTIGATION(1)
- 교육방법연구(1)
- 노인간호학회지(1)
- 대한치과보존학회지(1)
- 대한한방비만학회지(1)
- 대한흉부외과학회지(1)
- 예술인문사회융합멀티미디어논문지(1)
- 의학물리(1)
- 한국습지학회지(1)
- 한국열환경공학회 학술대회지(1)
전체 선택해제
총 633건 검색
본문검색 결과만 보기
-
Regulation of L-type Calcium Channel Current by Somatostatin in Guinea-Pig Gastric Myocytes
YoungChulKim, JaeHoonSim, SangJinLee, TongMookKang, SungJoonKim, SeungRyulKim, SeiJinYoun, SangJeonLee, Wen-XieXu6, InsukSo, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.2 5 103-108 (6 pages)
To study the direct effect of somatostatin (SS) on calcium channel current (IBa) in guinea-pig gastric myocytes, IBa was recorded by using whole-cell patch clamp technique in single smooth muscle cells. Nicardipine (1μM), a L-type Ca2+ channel blocker, inhibited IBa by 98⁑1.9% (n=5), however IBa was decreased in a reversible manner by application of SS. The peak IBa at 0 mV were decreased to 95⁑1.1, 92⁑1.9, 82⁑4.0, 66⁑5.8, 10⁑2.9% at 1010, 109,... -
Altered Calcium Current of the Vascular Smooth Muscle in Renal Hypertension
SangChaeNam, HyeJeonJeong, WonjaeKim, JongUnLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.3 13 351-356 (6 pages)
Single relaxed VSM cells measured 5∼10 μm in width and 70∼150 μm in length were obtained. VSM cells could not be differentiated in size and shape between hypertensive and normotensive rats under light microscopy. High-threshold (L-type) calcium currents were recorded using whole-cell patch clamp technique. The amplitude of the current recorded from VSM cells was larger in 2K1C hypertension than in control. Neither the voltage-dependence of the calcium current nor the cell capacitance was... -
Increase of L-type Calcium Current by cGMP-dependent Protein Kinase Regulates in Rabbit Ventricular Myocytes
JinHan, NariKim, EuiyongKim, WonkyungHo, YungEEarm, HankyounKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.6 10 733-742 (10 pages)
cGMP-dependent protein kinase (cGMP-PK), increased basal L-type calcium current (ICa) in rabbit ventricular myocytes. Our findings in rabbit ventricular myocytes were entirely different from the earlier findings in different species, suggesting that the activation of cGMP-PK is involved in the facilitation of ICa by cGMP. However, there is no direct evidence that cGMP-PK can stimulate ICa in rabbit ventricular myocytes. In this report, we focused on the direct effect of cGMP-PK on ICa in rabbit... -
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)
of AA (1, 5 and 10 ㄍM) (P＞0.05). Unsaturated fatty acids shifted the steady-state inactivation curves of IBa to the left; the extent of shift caused by AA was greater than that caused by LA. The activation curve was not affected by AA or LA. The results suggest that AA and other unsaturated fatty acids directly modulate L-type calcium channels and AA might modulate the hyposmotic stretch- induced increase of L-type calcium channel current in guinea-pig gastric smooth muscle. -
Calcium Current in the Unfertilized Egg of the Hamster
Haan, Jae-Hee, Cho, Soo-Wan, Yang, Young-Sun, Park, Young-Geun, Park, Hong-Gi, Chang, Gyeong-Jae, Kim, Yang-Mi, Park, Choon-Ok, Hong, Se 대한생리학회 대한생리학회지 10 Pages
대한생리학회 대한생리학회지 1994, 제 28권 제 2호 12 215-224 (10 pages)
The presence of a calcium current (iCa2+) passed via a specific channel was examined in the unfertilized hamster egg using the whole-cell voltage clamp technique. Pure inward current was isolated using a Ca2+-rich pipette solution containing 10 mM TEA. This current was independent of external Na+ and was highly sensitive to the Ca2+ concentration in the bathing solution, indicating that the inward current is carried by Ca2+. The maximal amplitude was -4.12±0.58nA (n=12) with 10mM Ca2+ at -3OmV... -
Effect of Cyclic GMP on the Calcium Current in Rabbit Ventricular Myocytes
Han, Jin, Leem, Chae-Hun, Ahn, Chul-Soo, So, In-Suk, Kim, Eui-Yong, Ho, Won-Kyung, Earm, Yung-E 대한생리학회 대한생리학회지 12 Pages
대한생리학회 대한생리학회지 1993, 제 27권 제 2호 4 151-162 (12 pages)
good stimulator of the cyclic GMP-dependent protein kinase, also increased the basal calcium current and its peak amplitude of calcium current was larger than that in the presence of cyclic AMP or cyclic GMP alone. In the presence of 100 μM cyclic GMP or 100 μM 8-bromo-cyclic GMP, already augmented calcium current was potentiated by intracellular application of 100 μM cyclic AMP or 1 μM isoprenaline or 1 μM forskolin. In the presence of cyclic GMP, acetylcholine reduced the calcium current... -
Effect of Various Divalent Ions on the Calcium Current of Adrenal Medullary Chromaffin Cells in the Rat
Kim, Jun, Leem, Chae-Hun, Kim, Sang-Jeong 대한생리학회 대한생리학회지 10 Pages
대한생리학회 대한생리학회지 1992, 제 26권 제 2호 2 113-122 (10 pages)
effect of divalent cations on VDCC of rat chromaffin cells. Rat (Sprague-Dawley rat, 150-250 gm) chromaffin cells were isolated and cultured. Standard giga seal, whole cell recording techniques were employed to study Ca2+ current with external and internal solutions that could effectively isolate VDCC currents (NMG in external and TEA and Cs2+ in internal solution). The voltage dependence and the inactivation time course of VDCC in our cells were identical to those of bovine chromaffin cells. A... -
Calcium Current and Background Current Activation in L-triiodothyronine Loaded Ventricular Myocytes of the Rabbit
Han, Jin, Kim, Eui-Yong, Han, Jae-Hee, Park, Choon-Ok, Hong, Seong-Geun, Leem, Chae-Hun, So, In-Suk, Ho, Won-Kyung, Earm, Yung-E, Sung, H 대한생리학회 대한생리학회지 14 Pages
대한생리학회 대한생리학회지 1992, 제 26권 제 2호 1 99-112 (14 pages)
4℃ for 2.10 hours. The calcium currrent (ICa) was increased in T3 loaded cells, however, the shape of current voltage curve and reverse potential did not altered. Cyclic AMP, cyclic GMP, isoprenaline and 3-isobutyl-1-methyl-xanthine increased ICa in euthyroid and hyperthyroid conditions, and acetylcholine blocked the increase of ICa in T3 loaded cells. The amplitude of ICa was much larger after perfusing cGMP than cGMP in both conditions, whereas the degree of increase of ICa was greater after... -
The Effect of Tyrosine Kinase Inhibitors on the L-type Calcium Current in Rat Basilar Smooth Muscle Cells
Bai. Guang-Yi, Yang. Tae-Ki, Gwak. Yong-Geun, Kim. Chul-Jin 대한신경외과학회 Journal of Korean neurosurgical society 6 Pages
대한신경외과학회 Journal of Korean neurosurgical society 2006, Vol.39 No.3 215-220 (6 pages)
-
Calcium-sensing receptor-mediated L-tryptophan-induced secretion of cholecystokinin and glucose-dependent insulinotropic peptide in swine duodenum
Xiuying Zhao, Yihan Xian, Chao Wang, Liren Ding, Xianglong Meng, Weiyun Zhu, Suqin Hang 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 2호 4 179-187 (9 pages)
This study aimed to elucidate the effect of tryptophan (Trp) on gut hormone secretion as well as the roles of the calcium-sensing receptor (CaSR) and its downstream signaling pathway in gut hormone secretion by assessing swine duodenal perfusion in vitro. Swine duodenum was perfused with Krebs-Henseleit buffer as a basal solution. Various concentrations (0, 10, and 20 mM) of Trp were applied to investigate its effect on gut hormone secretion. A CaSR antagonist was used to detect the involvement... -
Immunohistochemistry of Voltage-Gated Calcium Channel α1B Subunit in Mouse Cerebellum
Seung-Hyuk Chung, Kyung-Youl Lee, Ki-Hyung Kim, Chul-Tae Kim, Nam-Seob Lee, Kazuhiko Sawada, Hiromi Haga, Byung-Chul Lee, Yoshih 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2002, 제 3권 제 3호 5 175-178 (4 pages)
Secretion of neurotransmitters is initiated by voltage-gated calcium influx through presynaptic, voltage- gated N-type calcium channels. However, little is known about their cellular distribution in the mouse cerebellum. In the cerebellum, alpha1B immunoreactivity is found mainly on the cell bodies of all Purkinje cells. In addition, the immunoreactivity was detected on a subset of Purkinje cell dendrites, clustered to form a parasagittal array of bands. In the anterior lobe vermis,... -
동결 생쥐 난자에서의 Calcium 전류
강다원, 김은심, 최창용, 박재용, 한재희, 홍성근 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 9 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2002, 제 42권 제 1호 5 35-43 (9 pages)
-
Inhibition of voltage-dependent K+ current in rabbit coronary arterial smooth muscle cells by the class Ic antiarrhythmic drug propafenone
Jin Ryeol An, Hongliang Li, Mi Seon Seo, Won Sun Park 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2018, Vol.22 No.5 13 597-605 (9 pages)
2 Hz progressively increased the propafenone-induced inhibition of the Kv current. Furthermore, the inactivation recovery time constant was increased after the application of propafenone, suggesting that the inhibitory action of propafenone on Kv current is partially use-dependent. Pretreatment with Kv1.5, Kv2.1 or Kv7 inhibitor did not change the inhibitory effect of propafenone on the Kv current. Together, these results suggest that propafenone inhibits the vascular Kv channels in a dose- and... -
Alleviation of ascorbic acid-induced gastric high acidity by calcium ascorbate in vitro and in vivo
Joon-KyungLee, Sang-HyukJung, Sang-EunLee, Joo-HuiHan, EunjiJo, Hyun-SooPark, Kyung-SunHeo, DeasunKim, Jeong-SookPark, Chang-SeonMyung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2018, Vol.22 No.1 4 35-42 (8 pages)
higher than that of ascorbic acid (74.8 ng/ml). However, their Tmax values were similar. Thus, although calcium ascorbate showed equivalent antioxidant activity to ascorbic acid, it could attenuate the gastric high acidity caused by ascorbic acid, making it suitable for consideration of use to improve the side effects of ascorbic acid. Furthermore, calcium ascorbate could be an appropriate antioxidant substrate, with increased oral bioavailability, for patients with gastrointestinal disorders. -
Intracellular calcium-dependent regulation of the sperm-specific calcium-activated potassium channel, hSlo3, by the BKCa activator LDD175
TharakaDarshanaWijerathne, JihyunKim, DongkiYang, KyuPilLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.2 12 241-249 (9 pages)
Slo3 K+ current was unaffected by iberiotoxin or 4-aminopyridine, but was inhibited by ~50% by 20 mM TEA. Extracellular alkalinization potentiated hSlo3 K+ current, and internal alkalinization and Ca2+ elevation induced a leftward shift its activation voltage. NS1619, which acts intracellularly to modulate hSlo1 gating, attenuated hSlo3 K+ currents, whereas LDD175 increased this current and induced membrane potential hyperpolarization. LDD175-induced potentiation was not associated with a change... -
Calcium permeability of transient receptor potential canonical (TRPC) 4 channels measured by TRPC4-GCaMP6s
JuyeonKo, JongyunMyeong, DongkiYang, InsukSo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.1 16 133-140 (8 pages)
investigate the calcium permeability of TRPC4 channels, we attached GCaMP6s to TRPC4 and simultaneously measured the current and calcium signals. A TRPC4 specific activator, (–)-englerin A, induced both current and calcium fluorescence with the similar time course. Muscarinic receptor stimulator, carbachol, also induced both current and calcium fluorescence with the similar time course. By forming heteromers with TRPC4, TRPC1 significantly reduced the inward current with outward rectifying... -
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)
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 α-amino-3-hydroxy-5-methylisoxazole-4-proprionate receptor (AMPAR)-mediated steady-state current in supraoptic nucleus (SON) magnocellular neurosecretory cells (MNCs). In low-Mg2+ artificial cerebrospinal fluid (aCSF), glutamate induced an... -
Preventive effects of imperatorin on perfluorohexanesulfonate-induced neuronal apoptosis via inhibition of intracellular calcium-mediated ERK pathway
EunkyungLee, So-YoungChoi, Jae-HoYang, YounJuLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.4 9 399-406 (8 pages)
which was significantly blocked by imperatorin, NMDA receptor antagonist, MK801 and the L-type voltage-dependent calcium channel blockers, diltiazem and nifedipine. The activation of caspase-3 by PFHxS was also inhibited by MK801, diltiazem and nifedipine. PFHxS-increased ERK activation was inhibited by imperatorin, MK801, diltiazem and nifedipine. Taken together, imperatorin protects CGC against PFHxS-induced apoptosis via inhibition of NMDA receptor/intracellular calcium-mediated ERK pathway. -
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... -
Low Non-NMDA Receptor Current Density as Possible Protection Mechanism from Neurotoxicity of Circulating Glutamate on Subfornical Organ Neurons in Rats
WoneeChong, SeongNamKim, SeongKyuHan, SoYeongLee, PanDongRyu 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.2 13 177-181 (5 pages)
glutamate-induced current in SFO neurons was significantly smaller than that in hippocampal CA1 neurons (0.55 vs. 2.07 pA/pF, p＜0.05). To further identify the subtype of the glutamate receptors involved, the whole cell currents induced by selective agonists were then compared. The current densities induced by AMPA (0.45 pA/pF) and kainate (0.83 pA/pF), non-NMDA glutamate receptor agonists in SFO neurons were also smaller than those in hippocampal CA1 neurons (2.44 pA/pF for AMPA, p＜0.05; 2.34... -
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... -
Disappearance of Hypoxic Pulmonary Vasoconstriction and O2-Sen-sitive Nonselective Cationic Current in Arterial Myocytes of Rats Under Ambient Hypoxia
HaeYoungYoo, SungJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.5 13 463-468 (6 pages)
almost abolished without structural remodeling of PA in 2d-H rats, and the lost HPV was not recovered by Kv inhibitor, 4-aminopyridine. Patch clamp study showed that the hypoxic inhibition of Kv current in PASMC was similar between 2d-H and control. In contrast, hypoxia and TXA2-activated INSC was not observed in PASMCs of 2d-H. From above results, it is suggested that the decreased INSC might be the primary functional cause of HPV disappearance in the relatively early period (2 d) of hypoxia. -
TRPC-Mediated Current Is Not Involved in Endocannabinoid-Induced Short-Term Depression in Cerebellum
WonseokChang, JooMinPark, JunKim, SangJeongKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.2 9 139-144 (6 pages)
depression of synaptic transmission in cerebellar parallel fiber (PF)-Purkinje cell (PC) synapse. mGluR1 has signaling pathways involved in intracellular calcium increase which may contribute to endocannabinoid release. Two major mGluR1-evoked calcium signaling pathways are known: (1) slow-kinetic inward current carried by transient receptor potential canonical (TRPC) channel which is permeable to Ca2＋; (2) IP3-induced calcium release from intra</SUB>cellular calcium store. However, it is... -
Bile Acid Inhibition of N-type Calcium Channel Currents from Sympathetic Ganglion Neurons
HyeKyungLee, KyoungHwaLee, Eui-SicCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.1 4 25-30 (6 pages)
the control recorded without CA. Other single channel properties including slope conductance, single channel current amplitude, open and shut times were not significantly affected by CA being present. The results suggest that CA could modulate N-type Ca2＋ channel gating at a concentration as low as 10－6 M. Bile acids have been shown to activate nonselective cation conductance and depolarize the cell membrane. Under pathological conditions with increased circulating bile acids, CA suppression... -
Calcium Sensitization Induced by Sodium Fluoride in Permeabilized Rat Mesenteric Arteries
EnyueYang, JoonYongCho, UyDongSohn, InKyeomKim, 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.1 8 51-57 (7 pages)
It was hypothesized that NaF induces calcium sensitization in Ca2＋-controlled solution in permeabilized rat mesenteric arteries. Rat mesenteric arteries were permeabilized with Ղ- escin and subjected to tension measurement. NaF potentiated the concentration-response curves to Ca2＋ (decreased EC50 and increased Emax). Cumulative addition of NaF (4.0, 8.0 and 16 mM) also increased vascular tension in Ca2＋-controlled solution at pCa 7.0 or pCa 6.5, but not at pCa 8.0. NaF-induced... -
Octyl Gallate Inhibits ATP-induced Intracellular Calcium Increase in PC12 Cells by Inhibiting Multiple Pathways
YujieGuo, YiJaeHong, Hyun-JongJang, Myung-JunKim, Duck-JooRhie, Yang-HyeokJo, SangJuneHahn, ShinHeeYoon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.1 4 21-28 (8 pages)
Phenolic compounds affect intracellular free Ca2＋ concentration ([Ca2＋]i) signaling. The study examined whether the simple phenolic compound octyl gallate affects ATP-induced Ca2＋ signaling in PC12 cells using fura-2-based digital Ca2＋ imaging and whole-cell patch clamping. Treatment with ATP (100</SUP>ՌM) for 90 s induced increases in [Ca2＋]i in PC12 cells. Pretreatment with octyl gallate (100 nM to 20ՌM) for 10 min inhibited the ATP-induced [Ca2＋]i response in a... -
Voltage-dependent Ca2＋ Current Identified in Freshly Isolated Interstitial Cells of Cajal (ICC) of Guinea-pig Stomach
YoungChulKim, HikaruSuzuki, Wen-XieXu, HikaruHashitani, WoongChoi, Hyo-YungYun, Seon-MeePark6, SeiJinYoun6, Sang-JeonLee, SangJinLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.6 6 323-330 (8 pages)
times min−1, respectively, in the presence of 1</SUP>ՌM nifedipine. Single ICC-MY isolated by enzyme treatment also showed c-Kit immunohistochemical reactivity. These cells were also identified by generation of spontaneous inward current under K＋-rich pipette solution. The voltage clamp experiments revealed the amplitude of - 329 pA inward current at irregular frequency. With Cs＋-rich pipette solution at Vh=−80 mV, ICC-MY produced voltage-dependent inward currents (VDIC... -
Acidic pH-activated Cl? Current and Intracellular Ca2＋ Response in Human Keratinocytes
SuJungPark, WonWooChoi, OhSangKwon, JinHoChung, HeeChulEun, YungEEarm, SungJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.4 8 177-184 (8 pages)
The layers of keratinocytes form an acid mantle on the surface of the skin. Herein, we investigated the effects of acidic pH on the membrane current and [Ca2＋]c of human primary keratinocytes from foreskins and human keratinocyte cell line (HaCaT). Acidic extracellular pH (pHe≤5.5) activated outwardly rectifying Cl− current (ICl,pH) with slow kinetics of voltage-dependent activation. ICl,pH was potently inhibited by an anion channel blocker 4,4`-diisothiocyanostilbene-2,2`-disulphonic... -
Testosterone Relaxes Rabbit Seminal Vesicle by Calcium Channel Inhibition
JongKokKim, WooHaHan, MooYeolLee, SoonChulMyung, SaeChulKim, MinKyKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.2 6 73-78 (6 pages)
(0.1ՌM), 4-aminopyridine (4-AP, 10ՌM), or glibenclamide (10ՌM) rarely affected these relaxations. Single channel data (of inside-out and attached configurations) of BK channel activity were also hardly affected by testosterone (10ՌM). On the other hand, however, testosterone reduced L-type Ca2+ currents significantly, and found to induce acute relaxation of seminal vesicular smooth muscle and this was mediated, at least in part, by Ca2+ current inhibition in rabbit. -
Lysophosphatidylcholine Increases Ca2+ Current via Activation of Protein Kinase C in Rabbit Portal Vein Smooth Muscle Cells
SeungsooJung, YounghoLee, SungsikHan, YoungwhanKim, TaiksangNam, DucksunAhn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 4 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.1 5 31-34 (4 pages)
of LPC on L-type Ca2+ current (ICa(L)) activity and to elucidate the mechanism of LPC-induced change of ICa(L) in rabbit portal vein smooth muscle cells using whole cell patch clamp. Extracellular application of LPC increased ICa(L) through whole test potentials, and this effect was readily reversed by washout. Steady state voltage dependency of activation or inactivation properties of ICa(L) was not significantly changed by LPC. Staurosporine (100 nM) or chelerythrine (3ՌM), which is a... -
Mechanical Hyperalgesia Induced by Blocking Calcium-activated Potassium Channels on Capsaicin-sensitive Afferent Fiber
KyungHeeLee, HongKeeShin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2007, Vol.11 No.5 8 215-219 (5 pages)
Small and large conductance Ca2+-activated K+ (SKCa and BKCa) channels are implicated in the modulation of neuronal excitability. We investigated how changes in peripheral KCa channel activity affect mechanical sensitivity as well as the afferent fiber type responsible for KCa channel-induced mechanical sensitivity. Blockade of SKCa and BKCa channels induced a sustained decrease of mechanical threshold which was significantly attenuated by topical application of capsaicin onto afferent fiber and... -
Role of Gap Junction in the Regulation of Renin Release and Intracellular Calcium in As 4.1 Cell Line
JeongHeeHan, Bing-ZheHong, YoungGeunKwak, KuichangYuan, WooHyunPark, SungZooKim, SuhnHeeKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2007, Vol.11 No.3 5 107-112 (6 pages)
Gap junction protein, connexin, is expressed in endothelial cells of vessels, glomerulus, and renin secreting cells of the kidney. The purpose of this study was to investigate the role of gap junction in renin secretion and its underlying mechanisms using As 4.1 cell line, a renin-expressing clonal cell line. Renin release was increased proportionately to incubation time. The specific gap junction inhibitor, 18-beta glycyrrhetinic acid (GA) increased renin release in dose-dependent and time-... -
Calcium Ions are Involved in Modulation of Melittin-induced Nociception in Rat: II. Effect of Calcium Chelator
HongKeeShin, KyungHeeLee, ChulHyunCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.6 1 297-302 (6 pages)
which are characteristics similar to those induced by whole bee venom. Melittin-induced nociception has been known to be modulated by the changes in the activity of excitatory amino acid receptors, voltage-dependent calcium channels, cyclooxygenase and serotonin receptors. The present study was undertaken to investigate the role of calcium chelators (TMB-8 & Quin 2) in melittin-induced nociceptive responses. Changes of mechanical threshold and spontaneous flinching behaviors were measured at... -
Calcium Ions are Involved in Modulation of Melittin-induced Nociception in Rat: I. Effect of Voltage-gated Calcium Channel Antagonist
HongKeeShin, KyungHeeLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.5 6 255-262 (8 pages)
30 mg], N-type calcium channel blocker, ω-conotoxin GVIA (i.t., 0.1 or 0.5μg; i.pl., 5μg) and P-type calcium channel antagonist, ω- agatoxin IVA (i.t., 0.5μg; i.pl., 5μg) were administered 20 min before or 60 min after i.pl. injection of melittin. Intraplantar pre-treatment and i.t. pre- or post-treatment of verapamil and ω-conotoxin GVIA dose-dependently attenuated the reduction of mechanical threshold, and melittin-induced flinchings were inhibited by i.pl. or i.t. pre-treatment of both... -
Differential Functional Expression of Clotrimazole-sensitive Ca2+-activated K+ Current in Bal-17 and WEHI-231 Murine B Lymphocytes
HaifengZheng, JaeHongKo, JooHyunNam, YungEEarm, SungJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.1 4 19-24 (6 pages)
pipette solution revealed a voltage-independent K current that was blocked by clotrimazole (1 mM), an SK4 blocker. The expression of mRNAs for SK4 was confirmed in both Bal-17 and WEHI-231 cells. The density of clotrimazole-sensitive SK4 current was significantly larger in Bal-17 than WEHI-231 cells (11.4⁑3.1 Vs. 5.7⁑1.15 pA/pF). Also, the chronic stimulation of B cell receptors (BCR) by BCR-ligation (anti-IgM Ab, 3μg/ml, 8∼12 h) significantly upregulated the... -
Calcium Ion Dynamics after Dexamethasone Treatment in Organotypic Cultured Hippocampal Slice
Hee-JungChae, Tong-HoKang, Ji-HoPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.6 8 363-370 (8 pages)
slice was treated with a glutamate receptor antagonist together with dexamethasone, the real time Ca2 dynamics were decreased. Furthermore, we confirmed by PI uptake study that glutamate receptor antagonist reduced the hippocampal tissue damage caused by dexamethasone treatment. Therefore, our new calcium ion dynamics system in organotypic cultured hippocampal slice after dexamethasone treatment could provide real time analysis method for investigation of brain injuries by stress. -
Two Types of Voltage-activated Calcium Currents in Goldfish Horizontal Cells
Sun-SookPaik, Sun-HoBai, Chang-SubJung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.5 3 269-274 (6 pages)
In horizontal cells (HCs) that were freshly dissociated from goldfish retina, two types of voltage- dependent calcium currents (ICa) were recorded using a patch-clamping configuration: a transient type current and a sustained type current. The cell was held at 40 mV, and the prepulse step of 90 mV was applied before command pulse between 65 and 55 mV. The transient Ca2 current was activated by depolarization to around 50 mV from a prepulse voltage of... -
Nitric Oxide Synthase Mediates Carbon Monoxide-Induced Stimulation of L-type Calcium Currents in Human Jejunal Smooth Muscle Cells
InjaLim, JihyunYun, SeungtaeKim, SoonchulMyung, TaehoKim, HyoweonBang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.3 7 161-166 (6 pages)
Exogenous carbon monoxide (0.2%) increases L-type calcium (Ca2) current in human jejunal circular smooth muscle cells. The stimulatory effect of carbon monoxide (CO) on L-type Ca2 current is inhibited by pre-application of L-NNA, a classical competitive inhibitor of nitric oxide synthase (NOS) with no significant isoform selectivity (Lim, 2003). In the present study, we investigated which isoform of NOS affected CO induced stimulation of L-type Ca2 current in human jejunal... -
Heterogeneity of the SR-dependent Inward Na+-Ca2+ Exchange Current in the Heavily Ca2+-buffered Rat Ventricular Myocytes
Kyung-BongYoon, Sung-WanAhn, ChangMannKo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.2 6 101-110 (10 pages)
into a huge inward current of 12.9⁑0.5 pA/pF. From the inward current, two different inward INCXs were identified. One was 10 μM ryanodine-sensitive, constituting 14.2⁑2.3%. It was completely blocked by CdCl2 (0.1 mM and 0.5 mM) and by Na-depletion. The other was identified by 5 mM NiCl2 after suppression of ICaL and ryanodine receptor, constituting 14.8⁑1.6%. This latter was blocked by either 10 mM caffeine-induced SR Ca2-depletion or 1 mM tetracaine.... -
Efffects of Fluoxetine on ATP-induced Calcium Signaling in PC12 Cells
Yeo-MinLee, HeeJungKim, SunHwaHong, Myung-JunKim, DoSikMin, Duck-Joo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.1 9 57-63 (7 pages)
a widely used anti-depressant compound, has several additional effects, including blockade of voltage-gated ion channels. We examined whether fluoxetine affects ATP-induced calcium signaling in PC12 cells by using fura-2-based digital calcium imaging and assay for [3H]-inositol phosphates (IPs). Treatment with ATP (100μM) for 2 min induced [Ca2]i increases. The ATP-induced [Ca2]i increases were significantly decreased by removal of extracellular Ca2 and treatment with the...
