자료유형
발행기관
- 대한생리학회-대한약리학회(44)
- 대한생리학회(7)
- 대한수의학회(4)
- 생화학분자생물학회(4)
- 대한약리학회(3)
- 한국동물번식학회(3)
- 한국식물병리학회(2)
- 대한생식의학회(1)
- 대한신경정신의학회(1)
- 대한화학회(1)
- 아세아태평양축산학회(1)
- 이화여자대학교 교과교육연구소(1)
- 한국동물자원과학회(1)
- 한국생물공학회(1)
간행물
- THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY(44)
- 대한생리학회지(7)
- 대한약리학잡지(3)
- JOURNAL OF BIOCHEMISTRY AND MOLECULAR BIOLOGY(2)
- JOURNAL OF VETERINARY SCIENCE(2)
- KOREAN JOURNAL OF VETERINARY RESEARCH(구 대한수의학회지)(2)
- REPRODUCTIVE & DEVELOPMENTAL BIOLOGY(2)
- ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES(1)
- BIOTECHNOLOGY AND BIOPROCESS ENGINEERING(1)
- BMB REPORTS(1)
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY(1)
- EXPERIMENTAL & MOLECULAR MEDICINE : EMM(1)
- THE PLANT PATHOLOGY JOURNAL (1)
- 교과교육학연구(1)
- 대한불임학회지(1)
- 식물병연구(1)
- 신경정신의학(1)
- 한국가축번식학회지(1)
- 한국동물자원과학회지(1)
전체 선택해제
총 74건 검색
본문검색 결과만 보기
-
Unchanged Protein Level of Ryanodine Receptor but Reduced [3H] Ryanodine Binding of Cardiac Sarcoplasmic Reticulum from Diabetic Cardiomyopathy Rats
EunHeeLee, YoungJuSeo, Young-HoonKim, HaeWonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.5 5 397-405 (9 pages)
ryanodine receptor, and dihydropyridine receptor at the transcriptional and translational levels. Quantitative changes of ryanodine receptors and the dihydropyridine receptors, and the functional consequences of those changes in diabetic heart were investigated. The levels of protein and mRNA of the ryanodine receptor in diabetic rats were comparable to these of the control. However, the binding capacity of ryanodine was significantly decreased in diabetic rat hearts. Furthermore, the reduction... -
Thyroid Hormone-Induced Alterations of Ryanodine and Dihydropyridine Receptor Protein Expression in Rat Heart
HaeWonKim, MiyoungPark, EunHeeLee, HyoungJinCho, HeeRanLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.3 11 329-337 (9 pages)
hyperthyroid hearts, [3H]ryanodine binding and ryanodine receptor mRNA levels were increased, but protein levels of ryanodine were not changed significantly. However, the above parameters were markedly decreased in hypothyroid hearts. In case of dihydropyridine receptor, there were a significant increase in the mRNA and protein levels, and [3H]nitrendipine binding, whereas no changes were observed in these parameters of hypothyroid hearts. Our findings indicate that hyperthyroidism is associated... -
Genotyping of the Porcine Ryanodine Receptor 1 (RYR1) and Estrogen Receptor 1 (ESR1) Genes by High Resolution Melting (HRM) Approach
Ma. Jideng, Li. Mingzhou, Wang. Huiyu, Li. Xuewei 한국생물공학회 Biotechnology and bioprocess engineering 4 Pages
한국생물공학회 Biotechnology and bioprocess engineering 2012, Vol.17 No.5 1076-1079 (4 pages)
-
Skeletal Ryanodine Receptor 1-Heterozygous PSE (Pale, Soft and Exudative) Meat Contains a Higher Concentration of Myoglobin than Genetically Normal PSE Meat in Pigs
Obi. T., Matsumoto. M., Miyazaki. K., Kitsutaka. K., Tamaki. M., Takase. K., Miyamoto. A., Oka. T., Kawamoto. Y., Nakada. T. 아세아태평양축산학회 Asian-Australasian journal of animal sciences 6 Pages
아세아태평양축산학회 Asian-Australasian journal of animal sciences 2010, Vol.23 No.9 1244-1249 (6 pages)
-
Characterization of the Ryanodine Receptor and SERCA in Fetal, Neonatal, and Adult Rat Hearts
Ramesh. Venkat, Kresch. Mitchell J., Park. Woo-Jin, Kim. Do-Han 생화학분자생물학회 Journal of biochemistry and molecular biology 5 Pages
생화학분자생물학회 Journal of biochemistry and molecular biology 2001, Vol.34 No.6 573-577 (5 pages)
-
Effect of IP3 and ryanodine treatments on the development of bovine parthenogenetic and reconstructed embryos
Gook-jun Ahn, Byeong-chun Lee, Woo-suk Hwang 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2001, 제 2권 제 2호 11 131-137 (7 pages)
morula and blastocyst formation, the IP3 and ryanodine group exhibited significantly higher rates of morula fomation than the IP3 or control groups (40.6% vs 24.2% or 16.7%, respectively). Similarly, the rate of blastocyst formation in the IP3+ryanodine group was significantly higher than the control group (16.3% vs 6.9%) but did not differ significantly from the IP3 group (16.3% vs 9.5%). In nuclear transfer, activation was performed at 30 hpm by microinjection and elecroporation with 25 micro... -
Alteration of Ryanodine-receptors in Cultured Rat Aortic Smooth Muscle Cells
EunJiKim, DongKwanKim, ShinHyeKim, KyungMooLee, HyungSeoPark, SeHoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.6 15 431-436 (6 pages)
release from SR in permeabilized cells. An additional goal was to elucidate alterations of RyRs that occurred during culture. Perfusion of permeabilized, freshly dissociated RASMCs with Ca2＋ stimulated Ca2＋ release from the SR. Caffeine and ryanodine also induced Ca2＋ release from the SR in dissociated RASMCs. In contrast, ryanodine, caffeine and Ca2＋ failed to trigger Ca2＋ release in cultured RASMCs. These results are consistent with results obtained by immunocytochemistry, which showed... -
[3H]Ryanodine Binding Sites of SR Vesicles of the Chicken Pectoral Muscle
Hyo-YungYun, Jong-RyeJeon, Jang-HeeHong, Gang-MinHur, Jae-HeunLee, Jeong-HoSeok* 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.4 4 377-384 (8 pages)
chicken pectoral muscle. The chicken SR vesicles have two high molecular weight (HMW) protein bands as in eel SR vesicles on SDS PAGE. The HMW bands on SDS PAGE were found in the [3H] ryanodine peak fraction (Fr3-5) obtained from the purification step of the ryanodine receptor protein. Bmax and KD of the chicken [3H]ryanodine binding sites were 12.52 pmol/mg protein and 14.53 nM, respectively. Specific [3H]ryanodine binding was almost maximal at 50∼100 ՌM Ca2+, but was not increased by 5... -
G Protein-Coupled Receptor Signaling in Gastrointestinal Smooth Muscle
UyDongSohn, DongSeokKim, KarnamSMurthy 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.4 1 287-297 (11 pages)
Contraction of smooth muscle is initiated by an increase in cytosolic Ca2 leading to activation of Ca2/ calmodulin-dependnet myosin light chain (MLC) kinase and phosphorylation of MLC. The types of contraction and signaling mechanisms mediating contraction differ depending on the region. The involvement of these different mechanisms varies depending on the source of Ca2 and the kinetic of Ca2 mobilization. Ca2 mobilizing agonists stimulate different... -
Calcium homeostasis in diabetes mellitus
Changhwan Ahn, Ji-Houn Kang, Eui-Bae Jeung 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 3호 1 261-266 (6 pages)
Diabetes mellitus (DM) is becoming a lifestyle-related pandemic disease. Diabetic patients frequently develop electrolyte disorders, especially diabetic ketoacidosis or nonketotic hyperglycemic hyperosmolar syndrome. Such patients show characteristic potassium, magnesium, phosphate, and calcium depletion. In this review, we discuss a homeostatic mechanism that links calcium and DM. We also provide a synthesis of the evidence in favor or against this linking mechanism by presenting recent... -
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... -
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)
neuronal apoptosis. PFHxS-induced apoptosis of CGC was significantly reduced by imperatorin and PD98059, an ERK pathway inhibitor. PFHxS induced a persistent increase in intracellular calcium, 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... -
Sequestration of sorcin by aberrant forms of tau results in the defective calcium homeostasis
Song-InKim, HeeJaeLee, Sung-SooKim, Yong-SooKwon, WanjooChun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.4 8 387-397 (11 pages)
Neurofibrillary tangles (NFTs) of microtubule-associated protein tau are a pathological hallmark of Alzheimer’s disease (AD). Endoplasmic reticulum (ER) stress has been known to be involved in the pathogenesis of AD. However, the exact role of ER stress in tau pathology has not yet been clearly elucidated. In present study, the possible relationship between tau pathology and ER stress was examined in terms of sorcin, which is a calcium binding protein and plays an important role in calcium... -
A Novel Nicotinamide Adenine Dinucleotide Correction Method for Mitochondrial Ca2+ Measurement with FURA-2-FF in Single Permeabilized Ventricular Myocytes of Rat
JeongHoonLee, JeongMiHa, ChaeHunLeem 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.4 10 373-382 (10 pages)
Fura-2 analogs are ratiometric fluoroprobes that are widely used for the quantitative measurement of [Ca2+]. However, the dye usage is intrinsically limited, as the dyes require ultraviolet (UV) excitation, which can also generate great interference, mainly from nicotinamide adenine dinucleotide (NADH) autofluorescence. Specifically, this limitation causes serious problems for the quantitative measurement of mitochondrial [Ca2+], as no available ratiometric dyes are excited in the visible range.... -
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)
via activation of NCX reverse mode was enhanced and a decline of [Ca2＋]i via forward mode was accelerated. The amount of Ca2＋ released from the ER in RKO cells by the activation of IP3 receptor was also enhanced by irradiation. An increase in [Ca2＋]i via SOCI was enhanced in irradiated RKO cells, while that in A549 cells was depressed. These results suggest that γ-irradiation elicits enhancement of cellular Ca2＋ metabolism in radiation-sensitive RKO cells yielding programmed cell death. -
DA-6034 Induces [Ca2+]i Increase in Epithelial Cells
Yu-MiYang, SoonhongPark, HyeWonJi, Tae-imKim, EungKweonKim, KyungKooKang, DongMinShin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.2 1 89-94 (6 pages)
in mouse salivary gland cells and human corneal epithelial cells. [Ca2+]i increase of DA-6034 was dependent on the Ca2+ entry from extracellular and Ca2+ release from internal Ca2+ stores. Interestingly, these effects of DA-6034 were related to ryanodine receptors (RyRs) but not phospholipase C/inositol 1,4,5-triphosphate (IP3) pathway and lysosomal Ca2+ stores. These results suggest that DA-6034 induces Ca2+ signaling via extracellular Ca2+ entry and RyRs-sensitive Ca2+ release from internal... -
Advanced Glycation End Products and Diabetic Complications
VarunParkashSingh, AnjanaBali, NirmalSingh, AmteshwarSinghJaggi 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 14 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.1 1 1-14 (14 pages)
by disrupting molecular conformation, altering enzymatic activity, and interfering with receptor functioning. AGEs form intra- and extracellular cross linking not only with proteins, but with some other endogenous key molecules including lipids and nucleic acids to contribute in the development of diabetic complications. Recent studies suggest that AGEs interact with plasma membrane localized receptors for AGEs (RAGE) to alter intracellular signaling, gene expression, release of pro-inflammatory... -
Repaglinide, but Not Nateglinide Administered Supraspinally and Spinally Exerts an Anti-Diabetic Action in D-Glucose Fed and Streptozotocin-Treated Mouse Models
Yun-BeomSim, Soo-HyunPark, Yu-JungKang, Sung-SuKim, Chea-HaKim, Su-JinKim, Su-MinLim, Jun-SubJung, Ohk-HyunRyu, Moon-GiChoi, Hong-WonSuh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.6 3 493-498 (6 pages)
We have recently demonstrated that some anti-diabetic drugs such as biguanide and thizolidi-nediones administered centrally modulate the blood glucose level, suggesting that orally administered anti-diabetic drugs may modulate the blood glucose level by acting on central nervous system. The present study was designed to explore the possible action of another class of anti-diabetic drugs, glinidies, administered centrally on the blood glucose level in ICR mice. Mice were administered... -
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)
We carried out a series of experiment demonstrating the role of mitochondria in the cytosolic and mitochondrial Ca2＋ transients and compared the results with those from computer simulation. In rat ventricular myocytes, increasing the rate of stimulation (1∼3 Hz) made both the diastolic and systolic [Ca2＋] bigger in mitochondria as well as in cytosol. As L-type Ca2＋ channel has key influence on the amplitude of Ca2＋-induced Ca2＋ release, the relation between stimulus frequency and the... -
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)
(a 5-HT7 receptor antagonist), 3-tropanylindole − 3 − carboxylate methiodide (3-TCM; a 5-HT3 antagonist) blocked the 5-HT-induced action on pacemaker activity, but not SB 204741 (a 5-HT2B receptor antagonist). Based on [Ca2＋]i analysis, we found that 5-HT increased the intensity of [Ca2＋]i. The treatment of PD 98059 or JNK II inhibitor blocked the 5-HT-induced action on pacemaker activity of ICC, but not SB 203580. In summary, these results suggest that 5-HT can modulate pacemaker... -
Ca2＋-induced Ca2＋ Release from Internal Stores in INS-1 Rat Insulinoma Cells
KyungJinChoi, DongSuCho, JuYoungKim, ByungJoonKim, KyungMooLee, ShinHyeKim, DongKwanKim, SeHoonKim, HyungSeoPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.1 8 53-60 (8 pages)
investigate the existence of and the role of caffeine-sensitive ryanodine receptors (RyRs) in a rat pancreatic Ղ-cell line, INS-1 cells. To measure cytosolic and stored Ca2＋, respectively, cultured INS-1 cells were loaded with fura-2/AM or furaptra/AM. [Ca2＋]i was repetitively increased by caffeine stimulation in normal Ca2＋ buffer. However, peak [Ca2＋]i was only observed after the first caffeine stimulation in Ca2＋ free buffer and this increase was markedly blocked by ruthenium red,... -
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... -
Forskolin Changes the Relationship between Cytosolic Ca2＋ and Contraction in Guinea Pig Ileum
KoonHeeHan, GapJinCheon, DongSooYeon, SeongChunKwon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.3 8 189-194 (6 pages)
This study was designed to clarify the mechanism of the inhibitory effect of forskolin on contraction, cytosolic Ca2＋ level ([Ca2＋]i), and Ca2＋ sensitivity in guinea pig ileum. Forskolin (0.1 nM∼10ՌM) inhibited high K＋ (25 mM and 40 mM)- or histamine (3ՌM)-evoked contractions in a concentration- dependent manner. Histamine-evoked contractions were more sensitive to forskolin than high K＋- evoked contractions. Spontaneous changes in [Ca2＋]i and contractions were inhibited by... -
The Inhibition of TREK2 Channel by an Oxidizing Agent, 5,5'-dithio- bis (2-nitrobenzoic acid), via Interaction with the C-terminus Distal to the 353rd Amino Acid
KyoungSunPark, HyoweonBang, Eun-YoungShin, ChanHyungKim, YangmiKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.4 13 211-215 (5 pages)
TREK (TWIK-RElated K＋ channels) and TRAAK (TWIK-Related Arachidonic acid Activated K＋ channels) were expressed in COS-7 cells, and the channel activities were recorded from inside-out membrane patches using holding potential of −40 mV in symmetrical 150 mM K＋ solution. Intra</SUP>cellular application of an oxidizing agent, 5,5'-dithio-bis (2-nitrobenzoic acid) (DTNB), markedly decreased the activity of the TREK2, and the activity was partially reversed by the reducing agent,... -
(? )-Epigallocatechin Gallate Inhibits the Pacemaker Activity of Interstitial Cells of Cajal of Mouse Small Intestine
KweonYoungKim, SooJinChoi, HyukJinJang, DongChuanZuo, PawanKumarShahi, ShankarPrasadParajuli, CheolHoYeum, PyungJinYoon, SeokChoi, JaeYeo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.3 4 111-116 (6 pages)
The effects of (−)-epigallocatechin gallate (EGCG) on pacemaker activities of cultured interstitial cells of Cajal (ICC) from murine small intestine were investigated using whole-cell patch-clamp technique at 30oC and Ca2＋ image analysis. ICC generated spontaneous pacemaker currents at a holding potential of −70 mV. The treatment of ICC with EGCG resulted in a dose-dependent decrease in the frequency and amplitude of pacemaker currents. SQ-22536, an adenylate cyclase inhibitor, and... -
Relaxant Effect of Spermidine on Acethylcholine and High K+- induced Gastric Contractions of Guinea-Pig
YoungChulKim, JaeHoonSim, Woong-Choi, ChanHyungKim, Ra-YoungYou, Wen-XieXu, SangJinLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.2 4 59-64 (6 pages)
In our previous study, we found that spermine and putrescine inhibited spontaneous and acetylcholine (ACh)-induced contractions of guinea-pig stomach via inhibition of L-type voltage- dependent calcium current (VDCCL). In this study, we also studied the effect of spermidine on mechanical contractions and calcium channel current (IBa), and then compared its effects to those by spermine and putrescine. Spermidine inhibited spontaneous contraction of the gastric smooth muscle in a... -
Effects of Apigenin on Glutamate-induced [Ca2+]i Increases in Cultured Rat Hippocampal Neurons
Ji-HwaHan, KiJungKim, Hyun-JongJang, JuHoJang, Myung-JunKim, KiWugSung, Duck-JooRhie, Yang-HyeokJo, SangJuneHahn, Mun-YongLee, ShinHeeYoon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.2 2 43-50 (8 pages)
for 5 min significantly decreased the [Ca2+]i responses induced by two ionotropic glutamate receptor agonists, alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic (AMPA, 10ՌM, 1 min) and N-methyl-D-aspartate (NMDA, 100ՌM, 1 min), and significantly inhibited the AMPA-induced peak currents. Treatment with apigenin also significantly inhibited the [Ca2+]i response induced by 50 mM KCl solution, decreased the [Ca2+]i responses induced by the metabotropic glutamate receptor agonist,... -
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)
of the cells with amiloride, nifedipine, ryanodine, and thapsigargin. GA dose-dependently increased intracellular Ca2+ concentration, which was attenuated by nifedipine, nimodipine, ryanodine, and thapsigargin. However, RP-cAMP, chelerythrine, tyrphostin A23, or phenylarsine oxide did not induced any significant change in GA-stimulated increase of intracellular Ca2+ concentration. These results suggest that gap junction plays an important role on the regulation of renin release and intracellular... -
Changes of Cytosolic Ca2+ under Metabolic Inhibition in Isolated Rat Ventricular Myocytes
SunghyunKang, NariKim, HyunJoo, JaeBoumYoum, WonSunPark, MohamedWarda, HyungkyuKim, DangVanCuong, TaehoKim, EuiyongKim, JinHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.5 6 291-298 (8 pages)
s. Fluorescence intensity of both Rhod-2 AM and TMRE were initially decreased by DNP, coincident with the initial increase of Fluo-4 AM fluorescence intensity. When sarcoplasmic reticulum (SR) Ca2 was depleted by 1μM thapsigargin plus 10μM ryanodine, the initial increase of Fluo-4 AM fluorescence intensity was unaffected, however, the subsequent progressive increase was abolished. KB-R7943 delayed both the first and the second phases of cytosolic Ca2 overload, while Na-fr... -
The Effect of External Divalent Cations 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 3 203-208 (6 pages)
Electrical rhythmicity in the gastrointestinal (GI) muscles is generated by pacemaker cells, known as interstitial cells of Cajal (ICC). In the present study, we investigated the effect of external divalent cations on pacemaking activity in cultured ICC from murine small intestine by using whole-cell patch clamp techniques. ICC generated pacemaker currents under a voltage clamp or electrical pacemaker potentials under a current clamp, and showed a mean amplitude of 500⁑50 pA or... -
Inhibition of Sarcoplasmic Reticulum Ca2+ Uptake by Pyruvate and Fatty Acid in H9c2 Cardiomyocytes: Implications for Diabetic Cardiomyopathy
EunHeeLee, HyeKyungLee, HaeWonKim, Young-HoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.4 2 195-202 (8 pages)
High extracellular glucose concentration was reported to suppress intracellular Ca2 clearing through altered sarcoplasmic reticulum (SR) function. In the present study, we attempted to elucidate the effects of pyruvate and fatty acid on SR function and reveal the mechanistic link with glucose-induced SR dysfunction. For this purpose, SR Ca2-uptake rate was measured in digitonin-permeabilized H9c2 cardiomyocytes cultured in various conditions. Exposure of these cells to 5 mM... -
Na+-Ca2+ Exchange Curtails Ca2+ before Its Diffusion to Global Ca2+i in the Rat Ventricular Myocyte
Sung-WanAhnChangMannKo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.2 4 95-102 (8 pages)
Na-Ca2 exchange (NCX) is the major Ca2 extrusion mechanism. NCX has been considered as a relaxation mechanism, as it reduces global [Ca2]i raised during activation. However, if NCX locates in the close proximity to the ryanodine receptor, then NCX would curtail Ca2 before its diffusion to global Ca2i. This will result in a global [Ca2]i decrease especially during its ascending phase rather than descending phase. Therefore, NCX would decrease the... -
Ca2+-induced Ca2+ Release from Sarcoplasmic Reticulum Negatively Regulates Myocytic ANP Release in Beating Rabbit Atria
DanLi, HeXiuQuan, JinFuWen, JingYuJin, SungHunPark, SunYoungKim, SungZooKim, KyungWooCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.2 3 87-94 (8 pages)
Thapsigargin attenuated ryanodine-induced decrease in atrial dynamic changes. Blockade of L-type Ca2 channel with nifedipine abolished ryanodine-induced increase in ANP release (0.69⁑5.58% vs. 27.31⁑3.51%; P＜0.001). In the presence of thapsigargin and ryanodine, nifedipine increased ANP release and decreased atrial dynamics. These data suggest that Ca2-induced Ca2 release from the SR is inversely involved in the regulation of atrial myocytic ANP release. -
Effect of Extracts from Safflower Seeds on Osteoblastic Differentiation and Intracellular Free Calcium Concentration in MC3T3-E1 Cells
Hye-OckJang, Hyun-SupEom, Sung-BaeRoh, IlYun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.1 8 55-62 (8 pages)
Very little research has been carried out on safflower seed for the prevention and treatment of the bone deficiency diseases, including osteoporosis, which are supported by scientific evidences. In the present study, 3μl of 0.1% dried crude extract or 2μl of 0.1% dried aqueous fraction were shown to significantly accelerate the rate of differentiation of osteoblast. Also, the crude extract and aqueous fraction increased the [Ca2]i of the cultured osteoblast cells: 3μl of 0.1% dried... -
Buffering Contribution of Mitochondria to the [Ca2+]i Increase by Ca2+ Influx through Background Nonselective Cation Channels in Rabbit Aortic Endothelial Cells
YoungChulKim, SangJinLee, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.1 5 29-36 (8 pages)
To prove the buffering contribution of mitochondria to the increase of intracellular Ca2+ level ([Ca2+]i) via background nonselective cation channel (background NSCC), we examined whether inhibition of mitochondria by protonophore carbonylcyanide m-chlorophenylhydrazone (CCCP) affects endothelial Ca2+ entry and Ca2+ buffering in freshly isolated rabbit aortic endothelial cells (RAECs). The ratio of fluorescence by fura-2 AM (R340/380) was measured in RAECs. Biological state was checked by... -
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.... -
Changes in the Expressional Levels of Sarcoplasmic Reticulum Ca2+-regulatory Proteins in the Postnatal Developing Rat Heart
EunHeeLee, SooSungPark, JaeSungLee, YoungJuSeo, Young-HoonKim, HaeWonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.2 6 101-108 (8 pages)
ryanodine receptor) mRNA was about 50∼60% at birth and increased gradually to adult level throughout the postnatal rat heart development. 3[H]ryanodine binding increased gradually during postnatal myocardial development, which was closely correlated with ryanodine mRNA expression levels during the development except the ryanodine mRNA level at birth. These findings indicate that cardiac SR Ca2- ATPase, phospholamban, and Ca2 release channel are expressed coordinately, which may be...
