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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)
of Ca2＋ through voltage-dependent Ca2＋ channels. The resulting elevation of intracellular calcium ([Ca2＋]i) triggers additional Ca2＋ release from internal stores. Less well understood are the mechanisms involved in Ca2＋ mobilization from internal stores after activation of Ca2＋ influx. The mobilization process is known as calcium-induced calcium release (CICR). In this study, our goal was to investigate the existence of and the role of caffeine-sensitive ryanodine receptors (RyRs) in a rat... -
Quantitative evaluation of renal parenchymal perfusion using contrast-enhanced ultrasonography in renal ischemia-reperfusion injury in dogs
Gahyun Lee, Sunghoon Jeon, Sang-kwon Lee, Byunggyu Cheon, Sohyeon Moon, Jun-Gyu Park, Kyoung-Oh Cho, Jihye Choi 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 4호 16 507-514 (8 pages)
This study evaluated whether renal perfusion changes can be noninvasively estimated by using contrast-enhanced ultrasonography (CEUS) in renal ischemia-reperfusion injury and investigated the correlation between renal perfusion measured by CEUS and necrosis and apoptosis of renal tubular epithelial cells. In six dogs with experimentally induced renal ischemia-reperfusion injury, changes in time to peak intensity, peak intensity, and area under the curve were measured on CEUS. Peak intensity and... -
Changes in hoof kinetics and kinematics at walk in response to hoof trimming
Babak Faramarzi, An Nguyen, Fanglong Dong 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 4호 12 557-562 (6 pages)
Appropriate hoof preparation and symmetry are linked to the well-being of the horse. Previous studies have shown the efficacy of pressure plates (PPs) in delivering objective biomechanical analysis. We aimed to assess the effect of hoof trimming on hoof biomechanics using a PP. Nine clinically sound Arabian horses were walked across a PP while foot strike was recorded by a digital camera. Kinetic and kinematic parameters were recorded before and after trimming. Changes were considered... -
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... -
Canine model of ischemic stroke with permanent middle cerebral artery occlusion: clinical features, magnetic resonance imaging, histopathology, and immunohistochemistry
Joon-Hyeok Jeon, Hae-Won Jung, Hyo-Mi Jang, Jong-Hyun Moon, Ki-Tae Park, Hee-Chun Lee, Ha-Young Lim, Jung-Hyang Sur, By 대한수의학회 Journal of Veterinary Science 11 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 1호 10 75-85 (11 pages)
The purpose of this study was to identify time-related changes in clinical, MRI, histopathologic, and immunohistochemical findings associated with ischemic stroke in dogs. Additionally, the association of cerebrospinal fluid (CSF) and tissue levels of interleukin (IL)-6 with clinical prognosis was assessed. Ischemic stroke was induced by permanent middle cerebral artery occlusion (MCAO) in nine healthy experimental dogs. The dogs were divided into three groups... -
Pre- and post-operative cardiac evaluation of dogs undergoing lobectomy and pneumonectomy
Meri? Kocat?rk, Hakan Salci, Zeki Yilmaz*, A. Sami Bayram, Jørgen Koch 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 3호 12 257-264 (8 pages)
This study aimed to assess the influence of lobectomy and pneumonectomy on cardiac rhythm and on the dimensions and function of the right-side of the heart. Twelve dogs undergoing lobectomy and eight dogs undergoing pneumonectomy were evaluated preoperatively and one month postoperatively with electrocardiography and Doppler echocardiography at rest. Pulmonary artery systolic pressure (PASP) was estimated by the tricuspid regurgitation jet (TRJ) via the pulse wave Doppler velocity method.... -
Ethanol extract of Angelica gigas inhibits croton oil-induced inflammation by suppressing the cyclooxygenase-prostaglandin pathway
Sunhee Shin, Seong Soo Joo, Dongsun Park, Jeong Hee Jeon, Tae Kyun Kim, Jeong Seon Kim, Sung Kyeong Park, Bang Yeon Hwang, *, Yun 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 1호 7 43-50 (8 pages)
The anti-inflammatory effects of an ethanol extract of Angelica gigas (EAG) were investigated in vitro and in vivo using croton oil-induced inflammation models. Croton oil (20 μg/mL) up-regulated mRNA expression of cyclooxygenase (COX)-I and COX-II in the macrophage cell line, RAW 264.7, resulting in the release of high concentrations of prostaglandin E2 (PGE2). EAG (1∼10 μg/mL) markedly suppressed croton oil-induced COX-II mRNA expression and PGE2 production. Application of croton oil (5% in... -
In vitro and in vivo gene therapy with CMV vector-mediated presumed dog β-nerve growth factor in pyridoxine-induced neuropathy dogs
Jin-Young Chung, Jung-Hoon Choi, Il-Seob Shin, Eun-Wha Choi, Cheol-Yong Hwang, Sang-Koo Lee, Hwa-Young Youn* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 4호 5 367-374 (8 pages)
Due to the therapeutic potential of gene therapy for neuronal injury, many studies of neurotrophic factors, vectors, and animal models have been performed. The presumed dog β-nerve growth factor (pdβ-NGF) was generated and cloned and its expression was confirmed in CHO cells. The recombinant pdβ-NGF protein reacted with a human β-NGF antibody and showed bioactivity in PC12 cells. The pdβb-NGF was shown to have similar bioactivity to the dog β-NGF. The recombinant pdβ-NGF plasmid was... -
Pyridoxine induced neuropathy by subcutaneous administration in dogs
Jin-Young Chung, Jung-Hoon Choi, Cheol-Yong Hwang, Hwa-Young Youn* 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 2호 2 127-132 (6 pages)
To construct a sensory neuropathy model, excess pyridoxine (150 mg/kg s.i.d.) was injected subcutaneously in dogs over a period of 7 days. During the administrations period, the dogs experienced body weight reduction and proprioceptive loss involving the hindquarters. After pyridoxine administration was completed, electrophysiological recordings showed that the M wave remained at a normal state, but the H-reflex of the treated dogs disappeared at 7 days. The dorsal funiculus of L4 was disrupted... -
Canine model of ischemic stroke with permanent middle cerebral artery occlusion: clinical and histopathological findings
Byeong-Teck Kang, Jong-Hwan Lee, Dong-In Jung, Chul Park, Su-Hyun Gu, Hyo-Won Jeon, Dong-Pyo Jang, Chae-Young Lim, Fu-Shi Quan, 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 4호 9 369-376 (8 pages)
The aim of the present study was to assess the clinical and histopathological findings in a canine model of ischemic stroke. Cerebral ischemic stroke was induced by middle cerebral artery occlusion in four healthy beagle dogs using silicone plugs. They showed neurological signs of forebrain dysfunction such as reduced responsiveness, head turning, circling, postural reaction deficits, perceptual deficits, and hemianopsia. These signs gradually regressed within 4 weeks without therapy. On... -
Epigallocatechin-3 gallate prevents cardiac hypertrophy induced by pressure overload in rats
Jia Hao, Chan-Hyung Kim, Tae-Sun Ha, Hee-Yul Ahn 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 2호 4 121-129 (9 pages)
Pressure overload diseases, such as valvular stenosis and systemic hypertension, manifest morphologically in patients as cardiac concentric hypertrophy. Prevention of cardiac remodeling due to increased pressure overload is important to reduce morbidity and mortality. Epigallocatechin-3 gallate (EGCG) is a major bioactive polyphenol present in green tea which has been found to be a nitric oxide-mediated vasorelaxant and to be cardioprotective in myocardial ischemia-reperfusion injury. Therefore,... -
Hypoglycemic effects of vanadium on alloxan monohydrate induced diabetic dogs
Joo-Min Kim, Jin-Young Chung, Sook-Yeon Lee, Eun-Wha Choi, Min-Kyu Kim, Cheol-Yong Hwang, Hwa-Young Youn 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2006, 제 7권 제 4호 15 391-395 (5 pages)
The hypoglycemic effects after oral administration of vanadium have been studied previously in many species such as rats, mice and even humans. However, there has been no prior report on the glucose lowering effect of vanadium on diabetic dogs. Therefore, the purpose of this study was to evaluate the hypoglycemic effects of oral vanadium on diabetic dogs. Diabetes mellitus in the dogs studied was induced by alloxan monohydrate intravenous injection. The dogs were divided into two groups, one was... -
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... -
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... -
Quantitative Doppler echocardiography during Dobutamine stress test in canine mitral regurgitant model
HoJungChoi, SungJunWon, KiChangLee, MinCheolChoi, JungHeeYoon 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 6 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2004, 제 44권 제 2호 21 317-322 (6 pages)
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Antioxidant Effects of Pyrogallol in Neural Cells and Mice Brain
Jisub Moon, Heesun Gwak, Tae-Hee Lee, Eun Suk An, Yun-Bae Kim, Dongsun Park 한국교원대학교 뇌기반교육연구소 Brain, Digital, & Learning 12 Pages
한국교원대학교 뇌기반교육연구소 Brain, Digital, & Learning 2019, 제 9권 제 3호 2 113-124 (12 pages)
Polyphenols can easily react with reactive oxygen species (ROS) resulting in powerful antioxidant activity. Pyrogallol is a polyphenol found in a variety of fruits and vegetables. Therefore, plants containing pyrogallol can be used for their antioxidant, anti-bacterial, anti-fungal, anti-allergic, and anti-inflammatory properties. However, its effectiveness as an antioxidant is still a matter of debate because pyrogallol is also a superoxide anion generator and induces superoxide anion-mediated... -
Antipruritic effect of curcumin on histamine-induced itching in mice
Han Kyu Lee, Seok Bum Park, Su-youne Chang, Sung Jun Jung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2018, Vol.22 No.5 8 547-554 (8 pages)
Itching is a common clinical symptom of skin disease that significantly affects a patient’s quality of life. Transient receptor potential vanilloid 1 (TRPV1) receptors of keratinocytes and peripheral nerve fibers in skin are involved in the regulation of itching as well as pain. In this study, we investigated whether curcumin, which acts on TRPV1 receptors, affects histamine-induced itching in mice, using behavioral tests and electrophysiological approaches. We found that histamine-induced... -
Cilostazol attenuates kainic acid-induced hippocampal cell death
Young-SeopPark, ZhenJin, EunAeJeong, Chin-okYi, JongYoulLee, InSungPark, GuSeobRoh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2018, Vol.22 No.1 7 63-70 (8 pages)
Cilostazol is a selective inhibitor of type 3 phosphodiesterase (PDE3) and has been widely used as an antiplatelet agent. Cilostazol mediates this activity through effects on the cyclic adenosine monophosphate (cAMP) signaling cascade. Recently, it has attracted attention as a neuroprotective agent. However, little is known about cilostazol’s effect on excitotoxicity induced neuronal cell death. Therefore, this study evaluated the neuroprotective effect of cilostazol treatment against... -
Biphasic augmentation of alpha-adrenergic contraction by plumbagin in rat systemic arteries
HaeJinKim, HaeYoungYoo, YinHuaZhang, WooKyungKim, SungJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.6 14 687-694 (8 pages)
Plumbagin, a hydroxy 1,4-naphthoquinone compound from plant metabolites, exhibits anticancer, antibacterial, and antifungal activities via modulating various signaling molecules. However, its effects on vascular functions are rarely studied except in pulmonary and coronary arteries where NADPH oxidase (NOX) inhibition was suggested as a mechanism. Here we investigate the effects of plumbagin on the contractility of skeletal artery (deep femoral artery, DFA), mesenteric artery (MA) and renal... -
Dual control of the vestibulosympathetic reflex following hypotension in rats
SangEonPark, Yuan-ZheJin, ByungRimPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.6 13 675-686 (12 pages)
Orthostatic hypotension (OH) is associated with symptoms including headache, dizziness, and syncope. The incidence of OH increases with age. Attenuation of the vestibulosympathetic reflex (VSR) is also associated with an increased incidence of OH. In order to understand the pathophysiology of OH, we investigated the physiological characteristics of the VSR in the disorder. We applied sodium nitroprusside (SNP) to conscious rats with sinoaortic denervation in order to induce hypotension.... -
Comparative effects of angiotensin II and angiotensin-(4-8) on blood pressure and ANP secretion in rats
HoangThiAiPhuong, LameiYu, ByungMunPark, SuhnHeeKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.6 12 667-674 (8 pages)
Angiotensin II (Ang II) is metabolized from N-terminal by aminopeptidases and from C-terminal by Ang converting enzyme (ACE) to generate several truncated angiotensin peptides (Angs). The truncated Angs have different biological effects but it remains unknown whether Ang-(4-8) is an active peptide. The present study was to investigate the effects of Ang-(4-8) on hemodynamics and atrial natriuretic peptide (ANP) secretion using isolated beating rat atria. Atrial stretch caused increases in atrial... -
Chronic cerebral hypoperfusion and plasticity of the posterior cerebral artery following permanent bilateral common carotid artery occlusion
Kyung-OkCho, Seul-KiKim, SeongYunKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.6 9 643-650 (8 pages)
with a laser Doppler perfusion imaging (LDPI) system. A separate cohort of animals was sacrificed for evaluation of the brain vasculature and white matter damage after BCCAo. We found reference memory impairment in Wistar rats, but not in SD rats. Moreover, our LDPI system revealed that Wistar rats had significant hypoperfusion in the brain region supplied by the posterior cerebral artery (PCA). Furthermore, Wistar rats showed more profound CBF reduction in the forebrain region than did SD rats.... -
Reactive oxygen species increase neuronal excitability via activation of nonspecific cation channel in rat medullary dorsal horn neurons
HaeInLee, ByungRimPark, SangWooChun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.4 2 371-376 (6 pages)
The caudal subnucleus of the spinal trigeminal nucleus (medullary dorsal horn; MDH) receives direct inputs from small diameter primary afferent fibers that predominantly transmit nociceptive information in the orofacial region. Recent studies indicate that reactive oxygen species (ROS) is involved in persistent pain, primarily through spinal mechanisms. In this study, we aimed to investigate the role of xanthine/xanthine oxidase (X/XO) system, a known generator of superoxide anion (O2·-), on... -
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)
with its functional interacting γ2 subunit, hLRRC52. As previously reported, 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... -
Hydrogen peroxide attenuates refilling of intracellular calcium store in mouse pancreatic acinar cells
MiNaYoon, DongKwanKim, SeHoonKim, HyungSeoPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.2 11 233-239 (7 pages)
in mouse pancreatic acinar cells. Perfusion of H2O2 at 300 μM resulted in additional elevation of intracellular Ca2+ levels and termination of oscillatory Ca2+ signals induced by carbamylcholine (CCh) in the presence of normal extracellular Ca2+. Antioxidants, catalase or DTT, completely prevented H2O2-induced additional Ca2+ increase and termination of Ca2+ oscillation. In Ca2+-free medium, H2O2 still enhanced CCh-induced intracellular Ca2+ levels and thapsigargin (TG) mimicked H2O2-induced... -
Lamotrigine, an antiepileptic drug, inhibits 5-HT3 receptor currents in NCB-20 neuroblastoma cells
KiJungKim, SeungHyunJeun, Ki-WugSung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.2 4 169-177 (9 pages)
Lamotrigine is an antiepileptic drug widely used to treat epileptic seizures. Using whole-cell voltage clamp recordings in combination with a fast drug application approach, we investigated the effects of lamotrigine on 5-hydroxytryptamine (5-HT)3 receptors in NCB-20 neuroblastoma cells. Coapplication of lamotrigine (1~300 μM) resulted in a concentration-dependent reduction in peak amplitude of currents induced by 3 μM of 5-HT for an IC50 value of 28.2±3.6 μM with a Hill coefficient of... -
Acepromazine inhibits hERG potassium ion channels expressed in human embryonic kidney 293 cells
YoungShinJoo, HongJoonLee, Jin-SungChoi, Ki-WugSung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.1 9 75-82 (8 pages)
The effects of acepromazine on human ether-à-go-go-related gene (hERG) potassium channels were investigated using whole-cell voltage-clamp technique in human embryonic kidney (HEK293) cells transfected with hERG. The hERG currents were recorded with or without acepromazine, and the steady-state and peak tail currents were analyzed for the evaluating the drug effects. Acepromazine inhibited the hERG currents in a concentration-dependent manner with an IC50 value of 1.5 μM and Hill... -
Gintonin facilitates catecholamine secretion from the perfused adrenal medulla
Seung-YeolNa, Ki-HwanKim, Mi-SungChoi, Kang-SuHa, Dong-YoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.6 9 629-639 (11 pages)
M1 receptor antagonist), Ki14625 (10 μM, an LPA1/3 receptor antagonist), amiloride (1 mM, an inhibitor of Na+/Ca2+ exchanger), a nicardipine (1 μM, a voltage-dependent Ca2+ channel blocker), TMB-8 (1 μM, an intracellular Ca2+ antagonist), and perfusion of Ca2+-free Krebs solution with 5mM EGTA (a Ca2+chelater), while was not affected by sodium nitroprusside (100 μM, a nitrosovasodialtor). Interestingly, LPA (0.3~3 μM, an LPA receptor agonist) also dose-dependently enhanced the CA secretion... -
Effects of hydrogen peroxide on voltage-dependent K+ currents in human cardiac fibroblasts through protein kinase pathways
HyemiBae, DongheeLee, Young-WonKim, JeongyoonChoi, HongJunLee, Sang-WookKim, TaehoKim, Yun-HeeNoh, Jae-HongKo, HyoweonBang, InjaLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.3 11 315-324 (10 pages)
Human cardiac fibroblasts (HCFs) have various voltage-dependent K+ channels (VDKCs) that can induce apoptosis. Hydrogen peroxide (H2O2) modulates VDKCs and induces oxidative stress, which is the main contributor to cardiac injury and cardiac remodeling. We investigated whether H2O2 could modulate VDKCs in HCFs and induce cell injury through this process. In whole-cell mode patch-clamp recordings, application of H2O2 stimulated Ca2+-activated K+ (KCa) currents but not delayed rectifier K+ or... -
Analysis of the Baroreceptor and Vestibular Receptor Inputs in the Rostral Ventrolateral Medulla following Hypotension in Conscious Rats
YanLan, Huan-JunLu, XianJiang, Li-WeiLi, Yan-ZhaoYang, Guang-ShiJin, JooYoungPark, MinSunKim, ByungRimPark, Yuan-ZheJin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.2 11 159-165 (7 pages)
Input signals originating from baroreceptors and vestibular receptors are integrated in the rostral ventrolateral medulla (RVLM) to maintain blood pressure during postural movement. The contribution of baroreceptors and vestibular receptors in the maintenance of blood pressure following hypotension were quantitatively analyzed by measuring phosphorylated extracellular regulated protein kinase (pERK) expression and glutamate release in the RVLM. The expression of pERK and glutamate release in the... -
Airway Smooth Muscle Sensitivity to Methacholine in Precision-Cut Lung Slices (PCLS) from Ovalbumin-induced Asthmatic Mice
HaeJinKim, YeryungKim, SuJungPark, BoramBae, Hye-RyunKang, Sang-HeonCho, HaeYoungYoo, JooHyunNam, WooKyungKim, SungJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.1 10 65-72 (8 pages)
Asthma is a chronic inflammatory disease characterized by airway hyperresponsiveness (AHR) and reversible airway obstruction. Methacholine (MCh) is widely used in broncho-provocation test to evaluate airway resistance. For experimental investigation, ovalbumin-induced sensitization is fre-quently used in rodents (Ova-asthma). However, albeit the inflammatory histology and AHR in vivo, it remains unclear whether the MCh sensitivity of airway smooth muscle isolated from Ova-asthma is persistently... -
Transient Receptor Potential C4/5 Like Channel Is Involved in Stretch-Induced Spontaneous Uterine Contraction of Pregnant Rat
SeungsooChung, Young-HwanKim, Ji-HyunJoeng, Duck-SunAhn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.6 9 503-508 (6 pages)
Spontaneous myometrial contraction (SMC) in pregnant uterus is greatly related with gestational age and growing in frequency and amplitude toward the end of gestation to initiate labor. But, an accurate mechanism has not been elucidated. In human and rat uterus, all TRPCs except TRPC2 are expressed in pregnant myometrium and among them, TRPC4 are predominant throughout gestation, suggesting a possible role in regulation of SMC. Therefore, we investigated whether the TRP channel may be involved... -
Suppression of Peripheral Sympathetic Activity Underlies Protease-Activated Receptor 2-Mediated Hypotension
Young-HwanKim, Duck-SunAhn, Ji-HyunJoeng, SeungsooChung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.6 7 489-496 (8 pages)
Protease-activated receptor (PAR)-2 is expressed in endothelial cells and vascular smooth muscle cells. It plays a crucial role in regulating blood pressure via the modulation of peripheral vascular tone. Although some reports have suggested involvement of a neurogenic mechanism in PAR-2-induced hypotension, the accurate mechanism remains to be elucidated. To examine this possibility, we investigated the effect of PAR-2 activation on smooth muscle contraction evoked by electrical field... -
Inhibitory Effects of Ginsenoside-Rb2 on Nicotinic Stimulation-Evoked Catecholamine Secretion
Hyo-JeongLim, Hyun-YoungLee, Dong-YoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.5 12 431-439 (9 pages)
The aim of the present study was to investigate whether ginsenoside-Rb2 (Rb2) can affect the secretion of catecholamines (CA) in the perfused model of the rat adrenal medulla. Rb2 (3∼30 μM), perfused into an adrenal vein for 90 min, inhibited ACh (5.32 mM)-evoked CA secretory response in a dose- and time-dependent fashion. Rb2 (10 μM) also time-dependently inhibited the CA secretion evoked by DMPP (100 μM, a selective neuronal nicotinic receptor agonist) and high K+ (56 mM, a direct membrane... -
Ginger and Its Pungent Constituents Non-Competitively Inhibit Serotonin Currents on Visceral Afferent Neurons
ZhenhuaJin, GoeunLee, SojinKim, Cheung-SeogPark, YongSeekPark, Young-HoJin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.2 9 149-153 (5 pages)
Nausea and emesis are a major side effect and obstacle for chemotherapy in cancer patients. Employ of antiemetic drugs help to suppress chemotherapy−induced emesis in some patients but not all patients. Ginger, an herbal medicine, has been traditionally used to treat various kinds of diseases including gastrointestinal symptoms. Ginger is effective in alleviating nausea and emesis, particularly, for cytotoxic chemotherapy drug−induced emesis. Ginger-mediated antiemetic effect has... -
Antiapoptotic Effect of Paricalcitol in Gentamicin-induced Kidney Injury
SangHeonSuh, KoEunLee, JeongWooPark, InJinKim, OkKim, ChangSeongKim, JoonSeokChoi, EunHuiBae, SeongKwonMa, JongUnLee, SooWanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.5 9 435-440 (6 pages)
While the anti-apoptotic effect of paricalcitol has been demonstrated in various animal models, it is not yet clear whether paricalcitol attenuates the apoptosis in gentamicin (GM)-induced kidney injury. We investigated the effect of paricalcitol on apoptotic pathways in rat kidneys damaged by GM. Rats were randomly divided into three groups: 1) Control group (n=8), where only vehicle was delivered, 2) GM group (n=10), where rats were treated with GM (150 mg/kg/day) for 7 days, 3) PARI group... -
Influence of Fimasartan (a Novel AT1 Receptor Blocker) on Catecholamine Release in the Adrenal Medulla of Spontaneously Hypertensive Rats
Hyo-JeongLim, Seog-KiLee, Dong-YoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.1 14 99-109 (11 pages)
The aim of this study was to determine whether fimasartan, a newly developed AT1 receptor blocker, can affect the CA release in the isolated perfused model of the adrenal medulla of spontaneously hypertensive rats (SHRs). Fimasartan (5∼50 ՌM) perfused into an adrenal vein for 90 min produced dose- and time-dependently inhibited the CA secretory responses evoked by ACh (5.32 mM), high K＋ (56 mM, a direct membrane depolarizer), DMPP (100 ՌM) and McN-A-343 (100 ՌM). Fimasartan... -
TRPM7 Is Essential for RANKL-Induced Osteoclastogenesis
Yu-MiYang, Hwi-HoonJung, SungJunLee, Hyung-JunChoi, MinSeukKim, DongMinShin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.1 10 65-71 (7 pages)
The transient receptor potential melastatin type 7 (TRPM7) channel is a widely expressed non- selective cation channel with fusion to the C-terminal alpha kinase domain and regarded as a key regulator of whole body Mg2+ homeostasis in mammals. However, the roles of TRPM7 during osteoclastogenesis in RAW264.7 cells and bone marrow-derived monocyte/macrophage precursor cells (BMMs) are not clear. In the present study, we investigate the roles of TRPM7 in osteoclastogenesis using methods of small... -
Acute Hypoxia Activates an ENaC-like Channel in Rat Pheochromocytoma (PC12) Cells
YeonJuBae, Jae-ChealYoo, NammiPark, DawonKang, JaeheeHan, EunmiHwang, Jae-YongPark, Seong-GeunHong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.1 9 57-64 (8 pages)
Cells can resist and even recover from stress induced by acute hypoxia, whereas chronic hypoxia often leads to irreversible damage and eventually death. Although little is known about the response(s) to acute hypoxia in neuronal cells, alterations in ion channel activity could be preferential. This study aimed to elucidate which channel type is involved in the response to acute hypoxia in rat pheochromocytomal (PC12) cells as a neuronal cell model. Using perfusing solution saturated with 95% N2... -
Impact of Micellar Vehicles on in situ Intestinal Absorption Properties of Beta-Lapachone in Rats
SoungBaekJang, DongjuKim, SeongYeonKim, ChangheePark, JiHoonJeong, Hyo-JeongKuh, JaehwiLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.1 2 9-13 (5 pages)
a single-pass rat intestinal perfusion technique. B-lap was solubilized in mixed micelles composed of phosphatidylcholine and sodium deoxycholate, and in sodium lauryl sulfate (SLS)-based conventional micelles. Both mixed micelles and SLS micelles improved the in situ permeability of b-lap in all intestinal segments tested although the mixed micellar formulation was more effective in increasing the intestinal absorption of b-lap. The permeability of b-lap was greatest in the large intestinal... -
Mechanisms of Motility Change on Trinitrobenzenesulfonic Acid- Induced Colonic Inflammation in Mice
GabJinCheon, YuanCui, Dong-SooYeon, Seong-ChunKwon, Byong-GonPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.6 10 437-446 (10 pages)
Ulcerative colitis is an inflammatory bowel disease (IBD) characterized by recurrent episodes of colonic inflammation and tissue degeneration in human or animal models. The contractile force generated by the smooth muscle is significantly attenuated, resulting in altered motility leading to diarrhea or constipation in IBD. The aim of this study is to clarify the altered contractility of circular and longitudinal smooth muscle layers in proximal colon of trinitrobenzen sulfonic acid... -
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)
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 that RyRs were expressed in dissociated RASMCs, but not in cultured RASMCs. This study is the... -
The Protective Effect of Black Ginseng Against Transient Focal Ischemia-induced Neuronal Damage in Rats
Hyun-JungPark, HyunSooShim, KyungSooKim, InsopShim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.6 3 333-338 (6 pages)
Black ginseng (BG) has been widely used as herbal treatment for improving physiological function. In order to investigate the neuroprotective action of this herbal medicine, we examined the influence of BG on the learning and memory of rats using the Morris water maze, and we studied the effects of BG on the central cholinergic system and neural nitric oxide synthesis in the hippocampus of rats with neuronal and cognitive impairment. After middle cerebral artery occlusion was applied for 2h, the... -
Regulator of Calcineurin 1 Isoform 4 (RCAN1.4) Is Overexpressed in the Glomeruli of Diabetic Mice
ChorongJang, JiHeeLim, CheolWheePark, Young-JinCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.5 8 299-306 (8 pages)
Calcineurin (CaN) is activated in diabetes and plays a role in glomerular hypertrophy and extracellular matrix (ECM) accumulation. Here, kidneys from diabetic model mice were investigated for the expression of the regulator of CaN 1 (RCAN1) isoform 4 (RCAN1.4) which had been shown to be transcriptionally upregulated by CaN activation. We found the increased immunoreactivity for RCAN1 in the glomerular cells of db/db mice and streptozotocin-induced diabetic mice. In concordance, the expression of... -
Altered Regulation of Renal Nitric Oxide and Atrial Natriuretic Peptide Systems in Lipopolysaccharide-induced Kidney Injury
EunHuiBae, InJinKim, SeongKwonMa, JongUnLee, SooWanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.5 4 273-278 (6 pages)
Nitric oxide (NO) and atrial natriuretic peptide (ANP) may induce vascular relaxation by increasing the production of cyclic guanosine monophosphate (cGMP), an important mediator of vascular tone during sepsis. This study aimed to determine whether regulation of NO and the ANP system is altered in lipopolysaccharide (LPS)-induced kidney injury. LPS (10 mgㆍkg−1) was injected in the tail veins of male Sprague-Dawley rats; 12 hours later, the kidneys were removed. Protein expression of NO... -
Direct Corticosteroid Modulation of GABAergic Neurons in the Anterior Hypothalamic Area of GAD65-eGFP Mice
SeungYubShin, TaeHeeHan, SoYeongLee, SeongKyuHan, JinBongPark, FerencErdelyi, GaborSzabo, PanDongRyu 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.3 7 163-169 (7 pages)
Corticosterone is known to modulate GABAergic synaptic transmission in the hypothalamic paraventricular nucleus. However, the underlying receptor mechanisms are largely unknown. In the anterior hypothalamic area (AHA), the sympathoinhibitory center that project GABAergic neurons onto the PVN, we examined the expression of glucocorticoid receptor (GR) and mineralocorticoid receptor (MR) of GABAergic neurons using intact GAD65-eGFP transgenic mice, and the effects of corticosterone on the burst... -
5-Hydroxytryptamine Generates Tonic Inward Currents on Pacemaker Activity of Interstitial Cells of Cajal from Mouse Small Intestine
PawanKumarShahi, SeokChoi, DongChuanZuo, CheolHoYeum, PyungJinYoon, JunLee, YoungDaeKim, ChanGukPark, ManYooKim, HyeRangShin, HyunJungOh, J 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.3 2 129-135 (7 pages)
In this study we determined whether or not 5-hydroxytryptamine (5-HT) has an effect on the pacemaker activities of interstitial cells of Cajal (ICC) from the mouse small intestine. The actions of 5-HT on pacemaker activities were investigated using a whole-cell patch-clamp technique, intracellular Ca2＋ ([Ca2＋]i) analysis, and RT-PCR in ICC. Exogenously-treated 5-HT showed tonic inward currents on pacemaker currents in ICC under the voltage-clamp mode in a dose-dependent manner. Based on RT-PCR... -
Functional Expression of P2Y Receptors in WERI-Rb1 Retinoblastoma Cells
Na-HyunKim, Kyu-SangPark, JoonHyungSohn, Byung-IlYeh, ChangMannKo, InDeokKong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.1 9 61-65 (5 pages)
2179; 30ՌM). P2Y1 receptor expression in WERI-Rb-1 cells was also identified by using western blot. Taken together, P2Y1 receptor is mainly expressed in a retinoblastoma cell, which elicits Ca2＋ release from internal Ca2＋ storage sites via the phospholipase C-mediated pathway. P2Y1 receptor activation in retinoblastoma cell could be a useful model to investigate the role of purinergic [Ca2＋]i signaling in neural tissue as well as to find a novel therapeutic target to this lethal cancer. -
Neuroprotection by Valproic Acid in Mouse Models of Permanent and Transient Focal Cerebral Ischemia
YongRiQian, Mu-JinLee, ShinaeHwang, JiHyunKook, Jong-KeunKim, ChoonSangBae 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.6 13 435-440 (6 pages)
Valproic acid (VPA) is a well-known anti-epileptic and mood stabilizing drug. A growing number of reports demonstrate that VPA is neuroprotective against various insults. Despite intensive efforts to develop new therapeutics for stroke over the past two decades, all treatments have thus far failed to show clinical effect because of treatment-limiting side effects of the drugs. Therefore, a safety-validated drug like VPA would be an attractive candidate if it has neuroprotective effects against...
