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전체 선택해제
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Activation of K+ channel by 1-EBIO rescues the head and neck squamous cell carcinoma cells from Ca2+ ionophore-induced cell death
MingZheYin, Seok-WooPark, , TaeWookKang, KyungSooKim, , , HaeYoungYoo6, JunhoLee, J.HunHah, , MyungHunSung, , SungJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.1 4 25-33 (9 pages)
Ion channels in carcinoma and their roles in cell proliferation are drawing attention. Intracellular Ca2+ ([Ca2+]i)-dependent signaling affects the fate of cancer cells. Here we investigate the role of Ca2+-activated K+ channel (SK4) in head and neck squamous cell carcinoma cells (HNSCCs) of dif-ferent cell lines; SNU-1076, OSC-19 and HN5. Treatment with 1 μM ionomycin induced cell death in all the three cell lines. Whole-cell patch clamp study suggested common expressions of Ca2+-activated... -
괴화(槐花) 에탄올 추출물이 RBL-2H3 비만세포에서 Ca++ Ionophore에 의한 알레르기 반응 조절에 미치는 효과
손효, 강군, 심도완, 김태권, 강태봉, 이광호, Xiao. Sun, Jiang. Jun, Shim. Do-Wan, Kim. Tae-Kweon, Kang. Tae-Bong, Lee. Kwang-Ho 한국식품영양과학회 한국식품영양과학회지 6 Pages
한국식품영양과학회 한국식품영양과학회지 2014, Vol.43 No.3 349-354 (6 pages)
세포내 $Ca^{{+}{+}}$의 증가는 비만세포에서 수용체 활성을 거치지 않고 탈과립을 유도한다. 괴화는 천연 염색 재료로 사용되고 있으며, 또한 항염증 작용과 $Fc{varepsilon}RI$와 IgE 가교에 의한 항알레르기 효능도 보고되었다. 이번 연구에서 비만세포에서 $Ca^{{+}{+}}$ 유입에 의해 생산되는 알레르기 매개물에 대한 괴화 추출물의 조절 기능을 보고한다. 괴화 추출물은 A23187에 의해 유도되는 IL-4와 TNF-${alpha}$의 생산과 탈과립을 저해하였다. 또한 괴화 추출물은 DNFB로 유도한 알레르기 피부염의 동물 모델에서 알레르기... -
무지개송어(Oncorhynchus mykiss) 배양 간세포에서 Vitellogenin 합성에 미치는 Calcium ionophore의 영향
한국수산과학회 韓國養殖學會誌 1998, Vol.11 No.2 241-248 (8 pages)
Vitellogenin(VTG) 합성에 미치는 A23187의 영향을 무지개송어의 배양 간세포를 이용하여 실험을 행하였다. 간세포는 2일간 배양한 후, Estradiol-$17^{eta}$($E_2$, $2{ imes}10^{-6}$M) 및 A23187 ($10^{-7)$~$10^{-5}$M)을 첨가하여 7일간 배양하였다. 그리고, $E_2$에 의한 VTG 합성시의 A23187이 미치는 영향에 대해서도 조사하였다. A23187이 미치는 영향에 대해서도 조사하였다. A23187 ($10^{-7)$~$10^{-5}$M)의 첨가에 의해 간세포에서의 VTG 합성은 농도의 증가에 따라 감소하였다.$E_2$에 의해 합성된 VTG는 A 23187... -
Calcium Ionophore를 이용한 소 배반포로 부터의 배아주 유사세포의 효과적인 분리
김선욱, 류재웅, 이철상, 한용만, 박정선, 유대열, 이경광 한국발생생물학회 발생과 생식 7 Pages
한국발생생물학회 발생과 생식 1999, Vol.3 No.1 45-51 (7 pages)
분리하기 위해서는 영양외배엽 (trophectoderm, TE) 세포를 제거하는 것이 효과적이다. 따라서 본 실험은 효과적으로 TE를 제거하기 위한 calcium ionophore A23187 (CIPA) 처리조건을 확립하고, 분리해낸 ES 유사세포의 in vitro 다능성 (pluripotency)을 검증하고자 수행하였다. CIPA 농도 및 처리시간을 달리 하였을 때 50 $mu$M에서 25분간 처리한 군이 colony 형성율 (51%)및 10 passage 까지의 배양성적 (4.8%)에서 가장 좋은 결과를 나타내었다. 또한 CIPA를 처리하지 않은 군과의 비교에서도 약 5배의 높은 결과를 보임으로서 본... -
Influence of Ionophore Supplementation on Growth Performance, Dietary Energetics and Carcass Characteristics in Finishing Cattle during Period of Heat Stress
Barreras. A., Castro-Perez. B.I., Lopez-Soto. M.A., Torrentera. N.G., Montano. M.F., Estrada-Angulo. A., Rios. F.G., Davila-Ramos. H., P 아세아태평양축산학회 Asian-Australasian journal of animal sciences 9 Pages
아세아태평양축산학회 Asian-Australasian journal of animal sciences 2013, Vol.26 No.11 1553-1561 (9 pages)
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The Novel SCN- Ion-selective Electrode Based on the 1-Benzyl-3-(4-nitrophenyl) thio-urea Ionophore
Lee. Kyungmi, Kang. Dong Hyeon, Choe. Ju Eun, Yun. Mira, You. Jung-Min, Go. Min Jeong, Lee. Junseong, Jeon. Seungwon 대한화학회 Bulletin of the Korean Chemical Society 6 Pages
대한화학회 Bulletin of the Korean Chemical Society 2014, Vol.35 No.11 3175-3180 (6 pages)
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Selective Fe2+ Ion Recognition Using a Fluorescent Pyridinyl-benzoimidazole-derived Ionophore
Lee. Jeong Ah, Eom. Geun Hee, Park. Hyun Min, Lee. Ju Hoon, Song. Hyesun, Hong. Chang Seop, Yoon. Sungho, Kim. Cheal 대한화학회 Bulletin of the Korean Chemical Society 4 Pages
대한화학회 Bulletin of the Korean Chemical Society 2012, Vol.33 No.11 3625-3628 (4 pages)
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Synthesis and Binding Properties of 1,3,5-Tris(2-arylthiomethyl)mesitylene: A Selective Ag (I) Ionophore
Kim. Hong-Seok, Bae. Seon-Yun, Kim. Ki-Soo, Choi. Jun-Hyeak, Choi. Heung-Jin, Shim. Jun-Ho, Cha. Geun-Sig, Nam. Hak-Hyun 대한화학회 Bulletin of the Korean Chemical Society 5 Pages
대한화학회 Bulletin of the Korean Chemical Society 2008, Vol.29 No.2 417-421 (5 pages)
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A Highly Selective and Sensitive Calcium(II)-Selective PVC Membrane Based on Dimethyl 1-(4-Nitrobenzoyl)-8-oxo-2,8-dihydro-1H-pyrazolo[5,1-a]isoindole-2,3-dicarboxylate as a Novel Ionophore
Zamani. Hassan Ali, Abedini-Torghabeh. Javad, Ganjali. Mohammad Reza 대한화학회 Bulletin of the Korean Chemical Society 6 Pages
대한화학회 Bulletin of the Korean Chemical Society 2006, Vol.27 No.6 835-840 (6 pages)
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The Potentiometric Studies on the Effects of Various Functional Groups in Disiloxane as an Anion-Selective Ionophore
Jung. Hyo-Jin, Lee. Myong-Euy, Lim. Chae-Yun, Paeng. Ki-Jung 대한화학회 Bulletin of the Korean Chemical Society 6 Pages
대한화학회 Bulletin of the Korean Chemical Society 2005, Vol.26 No.1 57-62 (6 pages)
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생쥐 난자성숙에 미치는 $Ca^{++}$ Ionophore와 $Ca^{++}$ Channel Blocker의 영향
배인하, 김현숙, 김문규, Bae. In-Ha, Kim. Hyun-Sook, Kim. Moon-Kyoo 대한생식의학회 大韓不妊學會雜誌 12 Pages
대한생식의학회 大韓不妊學會雜誌 1992, Vol.19 No.2 105-116 (12 pages)
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Ethanol, $Ca^{2+}-Ionophore$ 및 Strontium이 돼지 난자의 활성화와 체외 발달에 미치는 영향
안현정, 이지웅, 강만종, 문승주, Ahn. H.J., Lee. J.W., Kang. M.J., Moon. S.J. 한국수정란이식학회 韓國受精卵移植學會誌 6 Pages
한국수정란이식학회 韓國受精卵移植學會誌 2007, Vol.22 No.1 75-80 (6 pages)
ethanol, Ca-ionophore 및 strontium의 최적 농도 및 노출 시간을 규명하기 위하여 실시되었다. Ethanol은 10%에서 10분간 노출시켰을 때 난할율과 배발달 성적이 각각 51.4%와 45%로 다른 처리구에 비하여 유의적으로 높았으며 (P<0.05), Ca-ionophore는 $25{mu}M$에서 2분간 노출시켰을 때 난할율과 배발달 성적이 유의적으로 높았다. 또한 strontium은 20mM에서 6시간 노출시켰을 때 난할율과 배발달 성적 모두 유의적으로 높았다(P<0.05). Strontium중복 처리는 단독 및 병용처리 할 때보다 난할율과 배발달율 모두 유의 적으로... -
In vitro development of canine somatic cell nuclear transfer embryos in different culture media
Dong-Hoon Kim, Jin-Gu No, Mi-Kyung Choi, Dong-Hyeon Yeom, Dong-Kyo Kim, Byoung-Chul Yang, Jae Gyu Yoo, Min Kyu Kim, Hong-Tea Kim 대한수의학회 Journal of Veterinary Science 3 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 2호 14 233-235 (3 pages)
The objective of the present study was to investigate the effects of three different culture media on the development of canine somatic cell nuclear transfer (SCNT) embryos. Canine cloned embryos were cultured in modified synthetic oviductal fluid (mSOF), porcine zygote medium-3 (PZM-3), or G1/G2 sequential media. Our results showed that the G1/G2 media yielded significantly higher morula and blastocyst development in canine SCNT embryos (26.1% and 7.8%, respectively) compared to PZM-3 (8.5% and... -
GC/MS analysis of high-performance liquid chromatography fractions from Sophora flavescens and Torilis japonica extracts and their in vitro anti-neosporal effects on Neospora caninum
Hun-Su Seo, Kyoung Hee Kim, Dae-Yong Kim, Bong-Kyun Park, Nam-Shik Shin, Jae-Hoon Kim, Heejeong Youn 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 3호 2 241-248 (8 pages)
We analyzed alcoholic extracts of herbs possessing anti-neosporal activity against Neospora (N.) caninum. To identify the chemical components of Sophora (S.) flavescens and Torilis (T.) japonica associated with anti-neosporal activity, specific fractions were isolated by high-performance liquid chromatography (HPLC). In vitro activity of the fractions against N. caninum was then assessed. Gas chromatography/ mass spectrometry (GC/MS) was used to identify and quantify specific anti-neosporal... -
Dynamic analysis of Ca level during bovine oocytes maturation and early embryonic development
Su Li Liang, Qian Jun Zhao, Xiang Chen Li, Ya Ping Jin, Yi Peng Wang, Xiao Hua Su, Wei Jun Guan, Yue Hui Ma 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 2호 5 133-142 (10 pages)
Mammalian oocyte maturation and early embryo development processes are Ca-dependent. In this study, we used confocal microscopy to investigate the distribution pattern of Ca and its dynamic changes in the processes of bovine oocytes maturation, in vitro fertilization (IVF), parthenogenetic activation (PA) and somatic cell nuclear transfer (SCNT) embryo development. During the germinal vesicle (GV) and GV breakdown stage, Ca was distributed in the cortical ooplasm and throughout the oocytes from... -
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... -
Human embryonic stem cells and therapeutic cloning
Woo Suk Hwang, Byeong Chun Lee, Chang Kyu Lee, Sung Keun Kang 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2005, 제 6권 제 2호 1 87-96 (10 pages)
The remarkable potential of embryonic stem (ES) cells is their ability to develop into many different cell types. ES cells make it possible to treat patients by transplanting specialized healthy cells derived from them to repair damaged and diseased cells or tissues, known as “stem cell therapy”. However, the issue of immunocompatibility is one of considerable significance in ES cell transplantation. One approach to overcome transplant rejection of human ES (hES) cells is to derive hES cells... -
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)
For parthenogenetic activation as a model system of nuclear transfer, microinjection and electroporation as activation treatments in bovine metaphase II oocytes were administered to each of three groups as follows: control group (treatments with Ca2+, Mg2+ -free PBS+100 micro M EGTA), IP3 group (control+25 micro M IP3) and IP3+ ryanodine group (control+25 micro M IP3+10 mM ryanodine). In experiments using microinjection, no significant differences were observed between any of the developmental... -
Extracellular acidity enhances tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-mediated apoptosis via DR5 in gastric cancer cells
Ran Hong, Song Iy Han 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2018, Vol.22 No.5 5 513-523 (11 pages)
The tumor microenvironment greatly influences cancer cell characteristics, and acidic extracellular pH has been implicated as an essential factor in tumor malignancy and the induction of drug resistance. Here, we examined the characteristics of gastric carcinoma (GC) cells under conditions of extracellular acidity and attempted to identify a means of enhancing treatment efficacy. Acidic conditions caused several changes in GC cells adversely affecting chemotherapeutic treatment. Extracellular... -
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)
Conflicting evidence has been obtained regarding whether transient receptor potential cation channels (TRPC) are store-operated channels (SOCs) or receptor-operated channels (ROCs). Moreover, the Ca/Na permeability ratio differs depending on whether the current-voltage (I-V) curve has a doubly rectifying shape or inward rectifying shape. To investigate the calcium permeability of TRPC4 channels, we attached GCaMP6s to TRPC4 and simultaneously measured the current and calcium signals. A TRPC4... -
Mitochondrial calcium uniporter inhibition attenuates mouse bone marrow-derived mast cell degranulation induced by beta-1,3-glucan
DangVanCuong, HyoungKyuKim, JubertMarquez, NariKim, KyungSooKo, ByoungDooRhee, JinHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.2 10 213-220 (8 pages)
focused on the role of the mitochondrial calcium uniporter (MCU) in BG-induced degranulation. Black mouse (C57) bone marrow-derived mast cells were stimulated with 0.5 μg/ml BG, 100 μg/ml peptidoglycan (PGN), or 10 μM A23187 (calcium ionophore), and dynamic changes in cytosolic and mitochondrial calcium and membrane potential were monitored. BG-induced mast cell degranulation occurred in a time-dependent manner, and was significantly reduced under calcium-free conditions. Ruthenium red, a... -
Brief low [Mg2+]o-induced Ca2+ spikes inhibit subsequent prolonged exposure-induced excitotoxicity in cultured rat hippocampal neurons
HeeJungKim, JiSeonYang, ShinHeeYoon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.1 13 101-109 (9 pages)
Reducing [Mg2+]o to 0.1 mM can evoke repetitive [Ca2+]i spikes and seizure activity, which induces neuronal cell death in a process called excitotoxicity. We examined the issue of whether cultured rat hippocampal neurons preconditioned by a brief exposure to 0.1 mM [Mg2+]o are rendered resistant to excitotoxicity induced by a subsequent prolonged exposure and whether Ca2+ spikes are involved in this process. Preconditioning by an exposure to 0.1 mM [Mg2+]o for 5 min inhibited significantly... -
Intracellular Ca2＋ Mobilization and Beta-hexosaminidase Release Are Not Influenced by 60 Hz-electromagnetic Fields (EMF) in RBL 2H3 Cells
YeonHeeHwang, HoSunSong, HeeRaeKim, MyoungSooKo, JaeMinJeong, YongHoKim, JeongSooRyu, UyDongSohn, Yoon-MyoungGimm, SungHoMyung, SangSooSim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.5 10 313-317 (5 pages)
The effects of extremely low frequency electromagnetic fields (EMF) on intracellular Ca2＋ mobilization and cellular function in RBL 2H3 cells were investigated. Exposure to EMF (60 Hz, 0.1 or 1 mT) for 4 or 16 h did not produce any cytotoxic effects in RBL 2H3 cells. Melittin, ionomycin and thapsigargin each dose-dependently increased the intracellular Ca2＋ concentration. The increase of intracellular Ca2＋ induced by these three agents was not affected by exposure to EMF (60 Hz, 1 mT) for 4... -
Regulation of DREAM Expression by Group I mGluR
JinuLee, InsookKim, SoRaOh, SukJinKo, MiKyungLim, DongGooKim, ChulHoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.2 4 95-100 (6 pages)
DREAM (downstream regulatory element antagonistic modulator) is a calcium-binding protein that regulates dynorphin expression, promotes potassium channel surface expression, and enhances presenilin processing in an expression level-dependent manner. However, no molecular mechanism has yet explained how protein levels of DREAM are regulated. Here we identified group I mGluR (mGluR1/5) as a positive regulator of DREAM protein expression. Overexpression of mGluR1/5 increased the cellular level of... -
Pyrithione-zinc Prevents UVB-induced Epidermal Hyperplasia by Inducing HIF-1α
Young-SukCho, Kyung-HoonLee, Jong-WanPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.2 5 91-97 (7 pages)
Epidermal keratinocytes overgrow in response to ultraviolet-B (UVB), which may be associated with skin photoaging and cancer development. Recently, we found that HIF-1Ձ controls the keratinocyte cell cycle and thereby contributes to epidermal homeostasis. A further study demonstrated that HIF-1Ձ is down-regulated by UVB and that this process is involved in UVB-induced skin hyperplasia. Therefore, we hypothesized that the forced expression of HIF-1Ձ in keratinocytes would... -
Zinc Inhibits Amyloid β Production from Alzheimer's Amyloid Precursor Protein in SH-SY5Y Cells
JinuLee, ChulHoonKim, DongGooKim, YoungSooAhn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.3 9 195-200 (6 pages)
affecting its degradation. In order to elucidate the possible role of zinc influx in secretase-processed AՂproduction, SH-SY5Y cells stably expressing amyloid precursor protein (APP) were treated with pyrrolidine dithiocarbamate (PDTC), a zinc ionophore, and the resultant changes in APP processing were examined. PDTC decreased AՂ40 and AՂ42 concentrations in culture media bathing APP-expressing SH-SY5Y cells. Measuring the levels of a series of C-terminal APP fragments generate... -
Effects of Pharmacological Modulators of Ca2+-activated K+ Channels on Proliferation of Human Dermal Fibroblast
JihyunYun, TaehoKim, SoonchulMyung, HyoweonBang, InjaLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.2 6 95-100 (6 pages)
Employing electrophysiological and cell proliferation assay techniques, we studied the effects of Ca2- activated K channel modulators on the proliferation of human dermal fibroblasts, which is important in wound healing. Macroscopic voltage-dependent outward K currents were found at about 40 mV stepped from a holding potential of 70 mV. The amplitude of K current was increased by NS1619, a specific large-conductance Ca2-activated K (BK)... -
Differential Inhibition of MPP+- or 6-Hydroxydopamine-induced Cell Viability Loss in PC12 Cells by Trifluoperazine and W-7
ChungSooLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.4 9 247-252 (6 pages)
The present study assessed the effect of calmodulin antagonists trifluoperazine and W-7 against the cytotoxicity of MPP and 6-hydroxydopamine (6-OHDA) in relation to the mitochondrial dysfunction and cell death in PC12 cells. Trifluoperazine (an inhibitor of the mitochondrial permeability transition and calmodulin antagonist) and W-7 (a specific calmodulin antagonist) significantly attenuated the MPP- induced cell viability loss in PC12 cells with a maximum inhibition at 0.5∼1μM;... -
TASK-1 Channel Promotes Hydrogen Peroxide Induced Apoptosis
JihyunYun, SeungtaeKim, HyoweonBang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.1 9 63-67 (5 pages)
Hydrogen peroxide (H2O2) causes oxidative stress and is considered as an inducer of cell death in various tissues. Two-pore domain K (K2p) channels may mediate K efflux during apoptotic volume decreases (AVD) in zygotes and in mouse embryos. In the present study, we sought to elucidate linkage between K2p channels and cell death by H2O2. Thus K2p channels (TASK-1, TASK-3, TREK-1, TREK-2) were stably transfected in HEK-293 cells, and cytotoxicity assay was preformed using cell... -
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... -
Multiple Regulation of Roundabout (Robo) Phosphorylation in a Heterologous Cell System
HwanTaePark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.2 7 111-115 (5 pages)
Roundabout (Robo) is the transmembrane receptor for slit, the neuronal guidance molecule. In this study, the tyrosine phosphorylation of Robo was observed in Robo-transfected human embryonic kidney cells and developing rat brains, and found to be increased by the treatment with protein kinase A activator, forskolin. In contrast, protein kinase C activation by phorbol-12-myristate-13-acetate decreased the phosphorylation of Robo. Intracellular calcium was required for the tyrosine... -
Enhancement of ATP-induced Currents by Phospholipase D1 Overexpressed in PC12 Cells
JinBongPark, YoungRaeKim, ByeongHwaJeon, Seung-KielPark, Sae-OckOh, YoungGeunKim, SangDoLee, KwangJinKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.4 6 223-229 (7 pages)
Using phospholipase D1 (PLD1)-overexpressing PC12 (PLD1-PC12) cells, the regulatory roles of PLD1 on ATP-induced currents were investigated. In control and PLD1-PC12 cells, ATP increased PLD activity in an external Ca2 dependent manner. PLD activity stimulated by ATP was substantially larger in PLD1-PC12 cells than in control cells. In whole-cell voltage-clamp mode, ATP induced transient inward and outward currents. The outward currents inhibited by TEA or charybdotoxin were significantly... -
Effect of Propofol on Ion Channels in Acutely Dissociated Dorsal Raphe Neuron of Sprague-Dawley Rats
Bong-JaeLee, Moo-IlKwon, Min-ChulShin, Youn-JungKim, Chang-JuKim, SoonAeKim, Ee-HwaKim, Joo-HoChung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.2 10 189-197 (9 pages)
To investigate propofol's effects on ionic currents induced by γ-aminobutyric acid (GABA) and glycine as well as on those produced by the nicotinic acetylcholine- and glutamate-responsive channels, rat dorsal raphe neurons were acutely dissociated and the nystatin-perforated patch-clamp technique under voltage- clamp conditions was used to observe their responses to the administration of propofol. Propofol evoked ion currents in a dose-dependent manner, and propofol (104 M) was used to... -
Differentiation Induction of Dendritic Cell Phenotypes from Human Leukemic Cell Lines
Dae-HeuiLee, JaeSunPark, Wan-KyuEo, WooMiKim, KooilKang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.1 11 79-86 (8 pages)
Recent clinical studies have shown that a high proportion of patients with acute promyelocytic leukemia (APL) achieve complete remission after treatment with all-trans retinoic acid (ATRA). However, most patients who receive continuous treatment with ATRA relapse and develop ATRA-resistant leukemia. Dendritic cells (DCs) are important antigen-presenting cells in the development of antileukemic T-cell responses. In this study, we investigated the strategies to overcome ATRA resistance of APL... -
Relaxant Effect of 4-Aminopyridine on the Mesenteric Artery of Rat
Se-HoonKimTae-ImLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.6 4 455-461 (7 pages)
cyclase inhibitor, methylene blue (10μM). Glibenclamide (10μM), ATP-sensitive K channel blocker, did not exert any effect on the 4-AP-induced vasorelaxation. 4-AP relaxed the sustained contraction induced by 100 mM K or Ca2 ionophore, A23187 (10μM) in a dose-dependent manner. In addition, 4-AP significantly decreased the phasic contractile response to norepinephrine in the absence of extracellular Ca2. However, 4-AP did not block the 45Ca influx of rat aorta. From... -
Comparison of the Determinants in the Differences in Force- Frequency Relationships between Rat and Rabbit Left Atria
ChangMannKoSoon-JinKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.5 11 417-425 (9 pages)
The underlying mechanism commonly applicable for both the positive and negative force-frequency relationships (FFR) was pursued in left atria (LA) of rat and rabbit. The species differences in the roles of Na/Ca2 exchanger and sarcoplasmic reticulum (SR), which are major intracellular Ca2 regulatory mechanisms in the heart, were examined in the amplitude accommodation to the frequency that changed from 3 Hz to the variable test frequencies for 5 minutes in the electrically... -
Influence of Staurosporine on Catecholamine Release Evoked by Cholinergic Stimulation and Membrane Depolarization from the Rat Adrenal Gland
Dong-YoonLim, Yeon-SooChoi, Won-HoYang, Yong-KyoonLee, YongLim, Cheol-HeeChoi, Byung-SikYu 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.2 10 149-158 (10 pages)
The present study was attempted to examine the effect of staurosporine (STS) on secretion of catecholamines (CA) evoked by cholinergic stimulation and membrane depolarization from the isolated perfused rat adrenal gland and to establish its mechanism of action. The perfusion of STS (3⁓107∼3⁓108 M) into an adrenal vein for 20 min produced a dose-dependent inhibition in CA secretion evoked by ACh (5.32⁓103 M), high K (5.6⁓102 M), DMPP... -
Effect of Propofol, an Intravenous Anesthetic Agent, on KATP Channels of Pancreatic β-cells in Rats
EunJeePark, Dae-KyuSong, JaeKyuCheun, JungInBae, Won-KyungHo, YungEEarm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.1 4 25-31 (7 pages)
ATP-sensitive potassium channels (KATP channels) play an important role in insulin secretion from pancreatic beta cells. We have investigated the effect of propofol on KATP channels in cultured single pancreatic beta cells of rats. Channel activity was recorded from membrane patches using the patch-clamp technique. In the inside-out configuration bath-applied propofol inhibited the KATP channel activities in a dose-dependent manner. The half-maximal inhibition dose (ED50) was 48.6⁑8.4μM... -
Effects of Calcium Channel Blockers on Porcine Cardiac and Coronary Arterial Function in Ischemia-Reperfusion
YungHongBaik, HyunKook, SunHeePark, SeongJooJeong, DongYoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.6 7 587-595 (9 pages)
by calcium ionophore A23187 was inhibited in I-RCA and VI-RCA, and recovered in NI-RCA. Cyclic GMP contents were decreased in I-RCA group alone. Electrical field stimulation in C-RCA produced transient and frequency-dependent contractions and at 50 Hz caused biphasic contractions. The transient contractions were not affected by pretreatment with phentolamine and atropine, but the biphasic contraction was altered by the pretreatment. Both contractions were inhibited in I-RCA, and were partially... -
Effects of Protein Kinase C Modulation on Hepatic Hemodynamics and Glucoregulation
JoongWooLee, InDeokKong, KyuSangPark, HaeSookChung, JamesPFilkins 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.6 5 571-578 (8 pages)
This study evaluated the effects of PKC activation using phorbol 12-myristate 13-acetate (PMA) and PKC inhibition using the isoquinoline sulfomide derivative H-7 on hemodynamics and glucoregulation in the isolated perfused rat liver. Livers were isolated from fed male Holtzman rats and perfused with Krebs Ringer bicarbonate solution under a constant flow of 50 ml/min at 35oC. Portal vein pressure, glucose and lactate concentrations in the medium and oxygen consumption rates were continuously... -
Effect of Imipramine on Calcium Utilization of Single Cells Isolated from Canine Detrusor
Ho-ShikShim, Hyoung-ChulChoi, Young-SookJeong, Jong-HoKim, Kwang-YounLee, Uy-DongSohn, Jeoung-HeeHa, Won-JoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.4 9 439-445 (7 pages)
a calcium ionophore, overcomed the inhibitory effect of imipramine. High potassium-depolarization (40 mM KCl) evoked cell contraction, which was inhibited by imipramine. Caffeine, a releasing agent of the stored Ca2 from sarcoplasmic reticulum, evoked a contraction of the cells that was not blocked by the pretreatment with imipramine. These results suggest that imipramine inhibits the influx of calcium in the detrusor cells through both the receptor-operated- and voltage-gated-calcium...
