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Differential Activation of Ras/Raf/MAPK Pathway between Heart and Cerebral Artery in Isoproterenol-induced Cardiac Hypertrophy
HyunjuKim, NariKim, HyunJoo, JaeBoumYoum, WonSunPark, MohamedWarda, SunghyunKang, VuThiThu, TranMinhKhoa, JinHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.5 7 299-304 (6 pages)
Cardiac hypertrophy contributes an increased risk to major cerebrovascular events. However, the molecular mechanisms underlying cerebrovascular dysfunction during cardiac hypertrophy have not yet been characterized. In the present study, we examined the molecular mechanism of isoproterenol (ISO)-evoked activation of Ras/Raf/MAPK pathways as well as PKA activity in cerebral artery of rabbits, and we also studied whether the activations of these signaling pathways were altered in cerebral artery,... -
Effect of autologous platelet-rich plasma application on cutaneous wound healing in dogs
Cho-Hee Jee, Na-Young Eom, Hyo-Mi Jang, Hae-Won Jung, Eul-Soo Choi, Jin-Hee Won, Il-Hwa Hong, Byeong-Teck Kang, Dong Wook Jeong, 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 1호 10 79-87 (9 pages)
This study was conducted to identify the effectiveness of platelet-rich plasma (PRP) and efficacy of intralesional injection as a method of application to acute cutaneous wounds in dogs. Healthy adult beagles (n = 3) were used in this study. Autologous PRP was separated from anticoagulant treated whole blood in three dogs. Cutaneous wounds were created and then treated by intralesional injection of PRP in the experimental group, while they were treated with saline in the control group on days 0,... -
Expression of caveolin-3 as positive intracellular signaling regulator on the development of hypertrophy in cardiac tissues
JooHeonKim, JinHan, YongKwonKim, YoungAeYang, YongGeunHong 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 8 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2005, 제 45권 제 4호 12 537-544 (8 pages)
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Insulin-like growth factor-1 improves diabetic cardiomyopathy through antioxidative and anti-inflammatory processes along with modulation of Akt/GSK-3β signaling in rats
ChengYuWang, XiangDanLiZhiHongHao, DongyuanXu 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.6 7 613-619 (7 pages)
Diabetic cardiomyopathy (DCM), a serious complication of diabetes mellitus, is associated with changes in myocardial structure and function. This study sought to explore the ability of insulin-like growth factor-1 (IGF-1) to modulate DCM and its related mechanisms. Twenty-four male Wistar rats were injected with streptozotocin (STZ, 60 mg/kg) to mimic diabetes mellitus. Myocardial fibrosis andapoptosis were evaluated by histopathologic analyses, and relevant proteins were analyzed by Western... -
Differential Gene Expression in GPR40-Overexpressing Pancreatic β-cells Treated with Linoleic Acid
In-SuKim, So-YoungYang, Joo-HuiHan, Sang-HyukJung, Hyun-SooPark, Chang-SeonMyung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.2 9 141-149 (9 pages)
“G protein-coupled receptor 40” (GPR40), a receptor for long-chain fatty acids, mediates the stimulation of glucose-induced insulin secretion. We examined the profiles of differential gene expression in GPR40-activated cells treated with linoleic acid, and finally predicted the integral pathways of the cellular mechanism of GPR40-mediated insulinotropic effects. After constructing a GPR40-overexpressing stable cell line (RIN-40) from the rat pancreatic β-cell line RIN-5f, we determined the... -
Regulatory Effect of 25-hydroxyvitamin D3 on Nitric Oxide Production in Activated Microglia
JinyoungHur, PyeongjaeLee, MiJungKim, Young-WukCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.5 7 397-402 (6 pages)
Microglia are activated by inflammatory and pathophysiological stimuli in neurodegenerative diseases, and activated microglia induce neuronal damage by releasing cytotoxic factors like nitric oxide (NO). Activated microglia synthesize a significant amount of vitamin D3 in the rat brain, and vitamin D3 has an inhibitory effect on activated microglia. To investigate the possible role of vitamin D3 as a negative regulator of activated microglia, we examined the effect of 25-hydroxyvitamin D3 on NO... -
Regional Differences in Mitochondrial Anti-oxidant State during Ischemic Preconditioning in Rat Heart
VuThiThu, DangVanCuong, NariKim, JaeBoumYoum, MohamadWarda, WonSunPark, JaeHongKo, EuiyongKim, JinHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2007, Vol.11 No.2 3 57-64 (8 pages)
Ischemic preconditioning (IPC) is known to protect the heart against ischemia/reperfusion (IR)-induced injuries, and regional differences in the mitochondrial antioxidant state during IR or IPC may promote the death or survival of viable and infarcted cardiac tissues under oxidative stress. To date, however, the interplay between the mitochondrial antioxidant enzyme system and the level of reactive oxygen species (ROS) in the body has not yet been resolved. In the present study, we examined the... -
Inhibition of NF-κB Activation Increases Oxygen-Glucose Deprivation-Induced Cerebral Endothelial Cell Death
JinuLee, ChulHoonKim, KyuDaeShim, YoungSooAhn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.2 3 65-71 (7 pages)
Increasing evidences suggest that ischemia-induced vascular damage is an integral step in the cascade of the cellular and molecular events initiated by cerebral ischemia. In the present study, employing a mouse brain endothelioma-derived cell line, bEnd.3, and oxygen-glucose deprivation (OGD) as an in vitro stroke model, the role of nuclear factor kappa B (NF-κB) activation during ischemic injury was investigated. OGD was found to activate NF-κB and to induce bEnd.3 cell death in a... -
A two-component signal transduction system contributes to the virulence of Riemerella anatipestifer
Qing Wang, Mianmian Chen, Wei Zhang 대한수의학회 Journal of Veterinary Science 11 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 2호 12 260-270 (11 pages)
Similar to other studies of bacterial pathogens, current studies of the pathogenesis of Riemerella anatipestifer (RA) are focused mainly on in vitro culture conditions. To elucidate further the pathogenesis of RA in vivo, bacterial RNA was extracted from overnight tryptic soy broth cultures (in vitro) and from the blood of infected ducks (in vivo) for comparative RNA sequencing analysis. In total, 682 upregulated genes were identified in vivo. Among the upregulated genes, a signal transduction... -
β-irradiation (Ho patch)-induced skin injury in mini-pigs: effects on NF-κB and COX-2 expression in the skin
Joong-Sun Kim, Kyung-Jin Rhim, Won-Seok Jang, Sun-Joo Lee, Yeonghoon Son, Seung-Sook Lee, Sunhoo Park, Sang Moo Lim 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 1호 1 1-9 (9 pages)
In the present study, the detrimental effect of β-emission on pig skin was evaluated. Skin injury was modeled in mini-pigs by exposing the animals to 50 and 100 Gy of β-emission delivered by Ho patches. Clinicopathological and immunohistochemical changes in exposed skin were monitored for 18 weeks after β-irradiation. Radiation induced desquamation at 2∼4 weeks and gradual repair of this damage was evident 6 weeks after irradiation. Changes in basal cell density... -
Glucocorticoid-induced laminitis with hepatopathy in a Thoroughbred filly
Seung-ho Ryu, Byung-sun Kim, Chang-woo Lee, Junghee Yoon, Yonghoon Lyon Lee 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2004, 제 5권 제 3호 15 271-274 (4 pages)
A 3-year-old Thoroughbred filly was referred to the Equine Hospital, Korea Racing Association for evaluation of hematuria, inappetite, weight loss and depression. From 25 days prior to admission, the horse was treated for right carpal lameness with 20 mg intramuscular administration of triamcinolone acetonide per day for consecutive 10 days by a local veterinarian. Clinical and laboratory findings included vaginal hyperemia, flare in bladder wall, neutrophilia, lymphopenia, polyuria, polydipsia... -
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)
Early life neuronal exposure to environmental toxicants has been suggested to be an important etiology of neurodegenerative disease development. Perfluorohexanesulfonate (PFHxS), one of the major perfluoroalkyl compounds, is widely distributed environmental contaminants. We have reported that PFHxS induces neuronal apoptosis via ERK-mediated pathway. Imperatorin is a furanocoumarin found in various edible plants and has a wide range of pharmacological effects including neuroprotection. In this... -
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... -
Multiple Signaling Pathways Contribute to the Thrombin-induced Secretory Phenotype in Vascular Smooth Muscle Cells
JiYoungJeong, YounghaeSon, Bo-YoungKim, Seong-KugEo, Byung-YongRhim, KoanhoiKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.6 10 549-555 (7 pages)
We attempted to investigate molecular mechanisms underlying phenotypic change of vascular smooth muscle cells (VSMCs) by determining signaling molecules involved in chemokine production. Treatment of human aortic smooth muscle cells (HAoSMCs) with thrombin resulted not only in elevated transcription of the (C-C motif) ligand 11 (CCL11) gene but also in enhanced secretion of CCL11 protein. Co-treatment of HAoSMCs with GF109230X, an inhibitor of protein kinase C, or GW5074, an inhibitor of Raf-1... -
Silymarin Inhibits Morphological Changes in LPS-Stimulated Macrophages by Blocking NF-κB Pathway
EunJeongKim, MinYoungLee, YoungJinJeon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.3 4 211-218 (8 pages)
The present study showed that silymarin, a polyphenolic flavonoid isolated from milk thistle (Silybum marianum), inhibited lipopolysaccharide (LPS)-induced morphological changes in the mouse RAW264.7 macrophage cell line. We also showed that silymarin inhibited the nuclear translocation and transactivation activities of nuclear factor-kappa B (NF-κB), which is important for macrophage activation-associated changes in cell morphology and gene expression of inflammatory cytokines. BAY- 11-7085,... -
FSL-1, a Toll-like Receptor 2/6 Agonist, Induces Expression of Interleukin-1α in the Presence of 27-hydroxycholesterol
WeonHeo, Sun-MiKim, Seong-KugEo, Byung-YongRhim, KoanhoiKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.6 5 475-480 (6 pages)
We investigated the question of whether cholesterol catabolite can influence expression of inflammatory cytokines via Toll-like receptors (TLR) in monocytic cells. Treatment of THP-1 monocytic cells with 27-hydroxycholesterol (27OHChol) resulted in induction of gene transcription of TLR6 and elevated level of cell surface TLR6. Addition of FSL-1, a TLR6 agonist, to 27OHChol-treated cells resulted in transcription of the IL-1α gene and enhanced secretion of the corresponding gene product.... -
Radicicol Inhibits iNOS Expression in Cytokine-Stimulated Pancreatic Beta Cells
ChaKyungYoun, SeonJooPark., MeiHongLi, MinYoungLee, KunYeongLee, ManJinCha, OkHyeunKim, HoJinYou, InYoupChang, SangPilYoon, YoungJinJeon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.4 9 315-320 (6 pages)
Here, we show that radicicol, a fungal antibiotic, resulted in marked inhibition of inducible nitric oxide synthase (iNOS) transcription by the pancreatic beta cell line MIN6N8a in response to cytokine mixture (CM: TNF-Ձ, IFN-Ճ, and IL-1Ղ). Treatment of MIN6N8a cells with radicicol inhibited CM-stimulated activation of NF-ՊB/Rel, which plays a critical role in iNOS transcription, in a dose-related manner. Nitrite production in the presence of PD98059, a specific inhibitor... -
Multiple Signaling Molecules are Involved in Expression of CCL2 and IL-1b in Response to FSL-1, a Toll-Like Receptor 6 Agonist, in Macrophages
KeunsooWon, Sun-MiKim, Sae-ALee, Byung-YongRhim, Seong-KugEo, KoanhoiKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.6 11 447-453 (7 pages)
TLR6 forms a heterodimer with TLR2 and TLR4. While proinflammatory roles of TLR2 and TLR4 are well documented, the role of TLR6 in inflammation is poorly understood. In order to understand mechanisms of action of TLR6 in inflammatory responses, we investigated the effects of FSL-1, the TLR6 ligand, on expression of chemokine CCL2 and cytokine IL-1Ղ and determined cellular factors involved in FSL-1-mediated expression of CCL2 and IL-1Ղ in mononuclear cells. Exposure of human monocytic... -
Extracellular Nucleotides Can Induce Chemokine (C-C motif) Ligand 2 Expression in Human Vascular Smooth Muscle Cells
Jeung-IlKim, Hye-YoungKim, Sun-MiKim, Sae-ALee, Yong-HaeSon, Seong-KugEo, Byung-YongRhim, KoanhoiKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.1 5 31-36 (6 pages)
To understand the roles of purinergic receptors and cellular molecules below the receptors in the vascular inflammatory response, we determined if extracellular nucleotides up-regulated chemokine expression in vascular smooth muscle cells (VSMCs). Human aortic smooth muscle cells (AoSMCs) abundantly express P2Y1, P2Y6, and P2Y11 receptors, which all respond to extracellular nucleotides. Exposure of human AoSMCs to NAD＋, an agonist of the human P2Y11 receptor, and NADP＋ as well as ATP, an... -
Extracellular Signal-regulated Kinase Activation Is Required for Serine 727 Phosphorylation of STAT3 in Schwann Cells in vitro and in vivo
HyunKyoungLee, JunyangJung, SangHwaLee, Su-YeongSeo, DukJoonSuh, HwanTaePark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.3 4 161-168 (8 pages)
In the peripheral nerves, injury-induced cytokines and growth factors perform critical functions in the activation of both the MEK/ERK and JAK/STAT3 pathways. In this study, we determined that nerve injury-induced ERK activation was temporally correlated with STAT3 phosphorylation at the serine 727 residue. In cultured Schwann cells, we noted that ERK activation is required for the serine phosphorylation of STAT3 by neuropoietic cytokine interleukin-6 (IL-6). Serine phosphorylated STAT3 by IL-6... -
The Effect of Caffeic Acid on Wound Healing in Skin-incised Mice
HoSunSong, TaeWookPark, UyDongSohn, YongKyooShin, ByungChulChoi, ChangJongKim, SangSooSim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.6 9 343-348 (6 pages)
This study was carried out to investigate the wound healing effect of caffeic acid in skin-incised mice. Caffeic acid showed significant effects on anti-inflammatory activity and wound healing, such as myeloperoxidase activity, lipid peroxidation, phospholipase A2 activity and collagen-like polymer synthesis, in incised-wound tissue. On the other hand, it significantly stimulated collagen-like polymer synthesis in NIH 3T3 fibroblast cells, while inhibited both silica-induced reactive oxygen... -
Blockade of p38 Mitogen-activated Protein Kinase Pathway Inhibits Interleukin-6 Release and Expression in Primary Neonatal Cardiomyocytes
Han-JungChae, Hyun-KiKim, Wan-KuLee, Soo-WanChae 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.6 7 319-325 (7 pages)
The induction of interleukin-6 (IL-6) using combined proinflammatory agents (LPS/IFN-γ or TNF-α/ IFN-γ) was studied in relation to p38 mitogen-activated protein kinase (MAPK) and NF-κB transcriptional factor in primary neonatal cardiomyocytes. When added to cultures of cardiomyocytes, the combined agents (LPS/IFN-γ or TNF-α/IFN-γ) had stimulatory effect on the production of IL-6 and the elevation was significantly reduced by SB203580, a specific p38 MAPK inhibitor. SB203580 inhibited... -
Analysis of a Sphingosine 1-phosphate Receptor hS1P3 in Rat Hepatoma Cells
Dong-SoonIm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 4 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.3 2 139-142 (4 pages)
To examine intracellular signaling of human S1P3 (hS1P3), a sphingosine 1-phosphate (S1P) receptor in plasma membrane, hS1P3 DNA was transfected into RH7777 rat hepatoma cell line, and the inhibition of forskolin-induced cAMP accumulation and activation of MAP kinases by S1P were tested. In hS1P3 transformants, S1P inhibited forskolin-induced activation of adenylyl cyclase activity by about 80% and activated MAP kinases in dose-dependent and pertussis-toxin (PTX) sensitive manners. In oocytes... -
Postnatal Changes in Atrial Compliance and Stretch-Induced ANP Secretion in Rabbits
SuhnHeeKim, KyungSunLee, SungZooKim, KyungHwanSeul, KyungWooCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.5 8 393-401 (9 pages)
To define the postnatal changes in ANP secretion in response to mechanical stretch and atrial compliance, experiments have been done in perfused nonbeating rabbit atria with different ages: 1-day, 1-, 2-, 3-, 4-, and 8-wk-old. In 1-day-old-rabbits, an increase in intraatrial pressure resulted in an increase in atrial volume, which was higher than that in 1-wk-old rabbits. Increases in atrial volume stimulated the secretion of ANP with concomitant translocation of extracellular fluid (ECF) into... -
백서 해마에서 카이닌산에 의한 조기유전자의 발현과 p42, p44 MAPK 및 Elk-1 인산화의 발달 단계에 따른 변화
정희연, 김수진, 김종흔, 정선주, 박주배, 김용식, 조수철 대한신경정신의학회 신경정신의학 10 Pages
대한신경정신의학회 신경정신의학 1999, 제 38권 제 4호 21 894-903 (10 pages)
연구목적： 어린 백서에게 카이닌산(kainic acid, KA)을 주사하여 발작을 일으킨 후, 해마에서 조기유전자 -c-fos, junB, 및 TIS1의 발현 유도 양상을 발달 단계별로 조사하여 전기경련충격(electroconvulsive shock, ECS) 에서의 결과와 비교함으로써 백서 뇌 신호전달계의 성숙과정을 파악하고자 하였다. 그리고 KA 주사후 p42, p44 mitogen activated protein kinase(MAPK)의 인산화 및 그에 의해 활성화되는 것으로 알려진 전사인 자 Elk-1의 인산화를 관찰하여, KA 주사후 MAPK 신호전달계를 통한 c-fos의 발현 경로를 발달 단계별... -
비음운론적 조건을 지닌 음운현상은 예외로 다루어지거나 특 정한 음운이론 내에서 처리되거나 또는 부분적으로는 다른 부문과 연 관지어 설명되었다. 이 글은 비음운론적 조건 또는 정보를 지닌 음운 현상이 지금까지 어떻게 다루어왔는지에 대한 개괄적인 소개를 하고, 앞으로의 연구방향을 제안하는 것을 목적으로 한다. 비음운론적 조건을 지닌 음운현상은 크게 두 부류로 나누어진다. 비음운론적 조건이 음운부 이외의 부문 또는 그 하위 부문 전체와 연 관되어 음운현상이 나타나는 경우는 몇몇 어휘에 한정되어서 음운현 상이...
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수문 및 토양환경을 고려한 수변식생군락 조성 모델 - 대청호 저수지를 사례로 -
한국습지학회 한국습지학회지 2017, Vol.19 No.1 15 144-154 (11 pages)
수변식생은 코리도형 생태계로서 수생태계와 육상생태계 사이의 전이지대이며, 구조적으로나 기능적으로 연계를 통해 생태계 건강성을 향상시킬 수 있게 된다. 이러한 수변생태계는 서식처, 종의 공급원과 수요처, 이동통로, 필터와 장벽 등의 기능을 갖는다. 본 연구는 표준생태계의 식생구조를 바탕으로 저수지 수위변동구간의 수문환경 및 토양환경을 고려 하여 도입 가능한 식생모델을 구축하기 위해 수행되었다. 경사도 10%이내의 완경사지를 중심으로 식생모델 적용 대상지 2개소를 선정하였다. 수변식생 모델은 GIS분석과...
