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Calcium Channel Blocking and Phosphodiesterase Inhibitory Action of GS386, a Dihydroisoquinoline Derivative, in Isolated Rat Trachea
장기철(Ki Churl Chang), 이회영(Hoi Young Lee), 강영진(Young Jin Kang), 구의본(Eui Bon Koo) 대한약리학회 대한약리학잡지 8 Pages
대한약리학회 대한약리학잡지 1996, 제 32권 제 3호 8 373-380 (8 pages)
of action of GS 386 was performed using isolated rat trachealis. GS 386 concentration-dependently relaxed rat trachealis contracted by carbachol (0.3μM) and high K+(65.4 mM) with IC50 5.24 and 5.67 μM, respectively. Verapamil inhibited more effectively the high K+-contracted tissues than those with carbachol in the rat trachealis muscle. In Ca2+-free media, Ca2+-induced contraction was inhibited by GS 386. Furthermore, high concentration of GS 386 (100μM) but not verapamil, attenuated a... -
Naloxone Postconditioning Alleviates Rat Myocardial Ischemia Reperfusion Injury by Inhibiting JNK Activity
AnzhouXia, ZhiXue, WeiWang, TanZhang, TiantianWei, XingzhiSha, YixunDing, WeidongZhou 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.1 9 67-72 (6 pages)
To investigate the alteration of c-Jun N-terminal kinase (JNK) activity after myocardial ischemia reperfusion injury (MIRI) and further explore the effect of naloxone postconditioning on MIRI. Forty male Sprague Dawley rats were randomly divided into five groups: sham operation (sham, n=8); ischemia reperfusion (IR, n=8); IR+naloxone 0.5 mg/kg (Nal L, n=8); IR+naloxone 1.0 mg/kg (Nal M, n=8); IR+naloxone 2.0 mg/kg (Nal H, n=8). Pathological changes of myocardial tissue were visualized by HE... -
Requirement of Pretone by Thromboxane A2 for Hypoxic Pulmonary Vasoconstriction in Precision-cut Lung Slices of Rat
SuJungPark, HaeYoungYoo, HyeJinKim, , , JinKyoungKim, Yin-HuaZhang, SungJoonKim, 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.1 9 59-64 (6 pages)
Hypoxic pulmonary vasoconstriction (HPV) is physiologically important response for preventing mismatching between ventilation and perfusion in lungs. The HPV of isolated pulmonary arteries (HPV-PA) usually require a partial pretone by thromboxane agonist (U46619). Because the HPV of ventilated/perfused lungs (HPV-lung) can be triggered without pretone conditioning, we suspected that a putative tissue factor might be responsible for the pretone of HPV. Here we investigated whether HPV can be also... -
Effect of Endothelin-1 on Proliferation and Differentiation of Rat Tracheal Epithelial Cells
ChangSooKim, SaeOckOh, JaeSukWoo, JinSupJung, YongKeunKim, SangHoLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.6 13 763-770 (8 pages)
of rat tracheal epithelia. Endothelin-1 stimulated proliferation of tracheal epithelial cells 1.5-fold when compared with that of control cells. Endothelin-1 increased mitogen-activated protein kinase (MAPK) activity. Herbimycin A, a tyrosine kinase inhibitor, inhibited endothelin-1-induced proliferation of epithelial cells. The treatment of endothelin-1 during the primary culture of tracheal epithelial cells increased AB-PAS-stained cell population and ciliated cell population 6.5 fold and 1.5... -
Platelet-Activating Factor Potentiates the Activity of Respiratory Burst and Interleukin-1 in Rat Alveolar Macrophages
Lee, Ji-Hee 대한생리학회 대한생리학회지 8 Pages
대한생리학회 대한생리학회지 1995, 제 29권 제 2호 7 251-258 (8 pages)
The objective of the present study was to test the effect of platelet-activating factor (PAF) on rat alveolar macrophages. PAF alone did not stimulate superoxide secretion from alveolar macrophages. However, PAF (10-5 M) significantly enhanced phagocytic activator zymosan-induced superoxide secretion from alveolar macrophages. This enhancement of PAF plus zymosan was 30% above the sum of the separate effects of PAF and zymosan. Similarly, PAF 1.3 X (10-5 M) was not a direct stimulant of alveolar... -
The Inhibitory Mechanism of Gentamicin on Electrical Field Stimulation Response in Rat Bladder Smooth Muscle
ChangHoMin, YiYiWang, JinhyungBae, JungHoonHan, UyDongSohn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.5 11 473-478 (6 pages)
To see the inhibitory mechanism of gentamicin in response to electrical field stimulation (EFS) using the rat bladder smooth muscle, atropine or guanethidine was treated but had no effect. Methylsergide, a non-selective 5-HT1, 5-HT2 receptor antagonist was also treated but had on effect. Kinase inhibitors, such as chelerythrine (PKC inhibitor), ML-9 (MLCK inhibitor), or Y27632 (rho kinase inhibitor) were pretreated before gentamicin treatment, but did not have effect. For U73122, a phospholipase... -
Cloning, expression and functional analysis of the duck Toll-like receptor 5 (TLR5) gene
Yuqiang Cheng, Yingjie Sun, Hengan Wang, Shuduan Shi, Yaxian Yan, Jing Li, Chan Ding, Jianhe Sun 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 1호 6 37-46 (10 pages)
from duck. dTLR5 mRNA was highly expressed in the bursa of Fabricius, spleen, trachea, lung, jejunum, rectum, and skin; moderately expressed in the muscular and glandular tissues, duodenum, ileum, caecum, and pancreas; and minimally expressed in the heart, liver, kidney, and muscle. DF-1 or HeLa cells transfected with DNA constructs encoding dTLR5 can activate NF-ĸB leading to the activation of interleukin-6 (IL-6) promoter. When we challenged ducks with a Herts33... -
Antigenic and immunogenic investigation of the virulence motif of the Newcastle disease virus fusion protein
Kang-Seuk Choi*, Eun-Kyoung Lee, Woo-Jin Jeon, Jun-Hun Kwon 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 3호 5 205-211 (7 pages)
Newcastle disease (ND) caused by virulent Newcastle disease virus (NDV) is a highly contagious viral disease of poultry. Virulent NDVs characteristically have a multibasic amino acid sequence (virulence motif) such as RRQKRF at the cleavage site of the precusor fusion (F0) protein. The antigenic and immunogenic characteristics of the virulence motif RRQKRF in the F0 protein of virulent NDVs were investigated. Epitope mapping analysis revealed that a RRQKRF-specific monoclonal antibody 4G2... -
Induction of apoptotic lesions in liver and lymphoid tissues and modulation of cytokine mRNA expression by acute exposure to deoxynivalenol in piglets
Osamu Mikami, Hiroyuki Yamaguchi, Hideo Murata, Yasuyuki Nakajima, Shigeru Miyazaki 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 2호 3 107-113 (7 pages)
Six 1-month-old piglets were intravenously injected with deoxynivalenol (DON) at the concentration of 1 mg/kg body weight, with three pigs each necropsied at 6 and 24 h post-injection (PI) for investigation of hepatotoxicity and immunotoxicity with special attention to apoptotic changes and cytokine mRNA expression. Histopathological examination of the DON-injected pigs revealed systemic apoptosis of lymphocytes in lymphoid tissues and hepatocytes. Apoptosis of lymphocytes and hepatocytes was... -
Aquaporin 1 expression in tissues of canines possessing inherited high K erythrocytes
Hideharu Ochiai*, Nobuya Hishiyama, Shin Hisamatsu, Nobuyuki Kanemaki 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 2호 12 203-206 (4 pages)
expression of aquaporin 1 (AQP1) in tissues from canines with an inherited anomaly that causes their erythrocytes to have high K. Northern blot analysis revealed abundant AQP1 expression in lung and kidney, though little expression was found in spleen. Using anti- C-terminus for dog AQP1, abundant expression was shown in kidney, trachea, and eye, but little expression was shown in pancreas and cerebrum, indicating that AQP1 expression in canine tissues is similar to that noted in other mammals. -
The Effects of Korean Red Ginseng (Ginseng Radix Rubra) on Liver Regeneration after Partial Hepatectomy in Dogs
Young-sam Kwon, Kwang-ho Jang, In-ho Jang 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2003, 제 4권 제 1호 13 83-92 (10 pages)
We investigated the effects of the oral administration of Korean red ginseng (KRG) on morphologic change and function of liver in dogs. Fifteen adult mongrel dogs (n=15) were divided into three groups: a control group (40% hepatectomy, untreated), a 250 group (40% hepatectomy, 250 mg/kg of KRG, PO), and a 500 group (40% hepatectomy, 500 mg/kg of KRG, PO). The liver regeneration, histologic findings, CBC (WBC, RBC, PCV, and PLT), and liver function tests (AST, ALT, GGT, ALP, LDH, and T-bil) were... -
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... -
H2 Receptor-Mediated Relaxation of Circular Smooth Muscle in Human Gastric Corpus: the Role of Nitric Oxide (NO)
SangEokLee, DaeHoonKim, YoungChulKim, Joung-HoHan, WoongChoi, ChanHyungKim, HyeWonJeong, Seon-MeePark, SeiJinYun, Song-YiChoi6, RohyunSung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.5 11 425-430 (6 pages)
This study was designed to examine the effects of histamine on gastric motility and its specific receptor in the circular smooth muscle of the human gastric corpus. Histamine mainly produced tonic relaxation in a concentration-dependent and reversible manner, although histamine enhanced contractility in a minor portion of tissues tested. Histamine-induced tonic relaxation was nerve-insensitive because pretreatment with nerve blockers cocktail (NBC) did not inhibit relaxation. Additionally, K+... -
Changes of Serum Ferritin in Acute Lung Injury Induced by Intestinal Ischemia/Reperfusion
SungDongPark, Yoon-YubPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.4 4 187-192 (6 pages)
Serum ferritin levels are increased in subjects at-risk for or with acute lung injury (ALI), and there are observations to suggest that increases in serum ferritin levels may help predict the development of ALI in at-risk individuals. To deepen our understanding of increases of serum ferritin and their relationship to the development of ALI, we measured serum ferritin levels before and after intestinal ischemia/reperfusion (I/R) injury in rats, and found that serum ferritin levels increased... -
Protective Effect of Defibrotide on Splanchnic Injury following Ischemia and Reperfusion in Rats
SooRanChoi, JiHoonJeong, JinHoSong, YongKyooShin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.2 5 85-94 (10 pages)
A splanchic artery occlusion for 90 min followed by reperfusion of the mesenteric circulation resulted in a severe form of circulatory shock, characterized by endothelial dysfunction, severe hypotension, marked intestinal tissue injury, and a high mortality rate. The effect of defibrotide, a complex of single-stranded polydeoxyribonucleotides having antithrombotic effect, was investigated in a model of splanchnic artery occlusion (SAO) shock in urethane anesthetized rats. Occlusion of the... -
Effects of Central Interleukin-1 on the Cardiovascular Response in Hemorrhaged Rats
JoonHoKang, JaeHeeJang, DongKukAhn, JaeSikPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.2 4 89-94 (6 pages)
The arterial pressure is regulated by the nervous and humoral mechanisms. The neuronal regulation is mostly carried out by the autonomic nervous system through the rostral ventrolateral medulla (RVLM), a key area for the cardiovascular regulation, and the humoral regulation is mediated by a number of substances, including the angiotensin (Ang) II and vasopressin. Recent studies suggest that central interleukin-1 (IL-1) activates the sympathetic nervous system and produces hypertension. The... -
Comparison of Vasodilator Effects of Platycodin D and D3 in Rats
Dong-YoonLim, Byeong-CheolKim, Eun-BangLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.3 5 149-155 (7 pages)
D and D3, which are active components derived from the roots of Platycodon grandiflorum A. DC., on the contractile force of the i3olated rat aorta and blood pressure of the anesthetized rat, and also to elucidate its mechanism of action. Both phenylephrine (an adrenergic α1-receptor agonist) and high potassium (a membrane- depolarizing agent) caused great contractile responses in the isolated aortic strips. Platycodin D at high concentration (24μg/ml) inhibited contractile responses induced by... -
Characterization of Intermediate Conductance K+ Channels in Submandibular Gland Acinar Cells
Sung-ManCho, ZhengGenPiao, YoonBaeKim, Joong-SooKim, KyungpyoPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.6 5 305-309 (5 pages)
There are some evidences that K efflux evoked by muscarinic stimulation is not mainly mediated by large conductance K (BK) channels in salivary gland. In this experiment, we therefore characterised non BK channels in rat submandibular gland acinar cells and examined the possibility of agonist effect on this channel using a patch clamp technique. Two types of K channels were observed in these cells. BK channels were observed in 3 cells from total 6 cells and its average... -
Effects of Central GABA and Glutamate on Blood Pressure and Single Unit Spikes in the RVLM of Rats
JaeSikPark, ZeeIhnLee, JaeHeeJang, DongKukAhn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.3 4 149-154 (6 pages)
The blood pressure (BP) is regulated by the nervous system and humoral factors, such as renin- angiotensin system, vasopressin and others. In the present study, we examined the central effects of glutamate and GABA on the cardiovascular regulation by injection of these substances into the lateral ventricle and also investigated the relationship between these central effects and the action of angiotensin II (Ang). Male Sprague Dawley rats, 350∼400 g, were anesthetized with urethane and... -
Molecular Aspects of Organic Ion Transporters in the Kidney
SeokHoChaHitoshiEndou 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 16 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.2 1 107-122 (16 pages)
A function of the kidney is elimination of a variety of xenobiotics ingested and wasted endogenous compounds from the body. Organic anion and cation transport systems play important roles to protect the body from harmful substances. The renal proximal tubule is the primary site of carrier-mediated transport from blood into urine. During the last decade, molecular cloning has identified several families of multispecific organic anion and cation transporters, such as organic anion transporter... -
Effect of Heat Shock Protein 72 on the Generation of Reperfusion Arrhythmias
MoonJunChang, HeungSikNa, HyunJungNam, KyungSikPyun, SeungKilHong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.4 7 319-324 (6 pages)
The causal relationship between heat shock protein (HSP) and second window of cardioprotective effect is still undetermined. In the present study, we assessed whether HSP-producing substances, amphetamine and ketamine, afforded protection against reperfusion-induced ventricular fibrillation (VF) and these protective effect remained after the inhibition of HSP72 production by quercetin, a mitochondrial ATPase inhibitor. Adult mongreal male cats (n=60, 2.5∼4 kg) were used in this study.... -
Effects of Prostaglandin F2α on Membrane Potentials and K+ Currents in Rabbit Middle Cerebral Arterial Cells
NariKim, JinHan, WonGueKim, EuiyongKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.4 5 301-309 (9 pages)
The purpose of our investigation was to examine the effects of prostaglandin F2α (PGF2α) on membrane potentials, Ca2-activated K (KCa) channels, and delayed rectifier K (KV) channels using the patch-clamp technique in single rabbit middle cerebral arterial smooth muscle cells. PGF2α significantly hyperpolarized membrane potentials and increased outward whole-cell K currents. PGF2α increased open-state probability of KCa channels without the change of the open and... -
Endotoxin-induced Acute Lung Injury is Mediated by PAF Produced via Remodelling of Lyso PAF in the Lungs
YoungManLee, TeoanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.3 6 219-226 (8 pages)
In order to elucidate the role of platelet activating factor (PAF) in the acute lung injury induced by endotoxin (ETX), activities of phospholipase A2, lyso PAF acetyltransferase and oxidative stress by neutrophilic respiratory burst were probed in the present study. To induce acute lung injury, 100μg of E.coli ETX (type 0127; B8) was instilled directly into the tracheae of Sprague-Dawley rats. Five hours after the ETX instillation, induction of acute lung injury was confirmed by lung leak... -
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)
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 monitored by a... -
The Role of Somatostatin in Nociceptive Processing of the Spinal Cord in Anesthetized Cats
SungJunJung, JooMinPark, JunHoLee, JihyeLee, SangJeongKim, JunKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.4 1 365-373 (9 pages)
Somatostatin (SOM) is one of the major neuropeptides in dorsal root ganglion cells, but its role in spinal nociceptive process has not been well known. In present study we aimed to investigate the effect of SOM on the response of dorsal horn neurons to the various types of peripheral nociceptive stimuli in anesthetized cats. Using carbon-filament microelectrode, the single cell activities of wide dynamic range neurons were recorded from the lumbosacral enlargement after noxious mechanical... -
Effect of the Inhibition of Phospholipase A2 in Generation of Free Radicals in Intestinal Ischemia/Reperfusion Induced Acute Lung Injury
YoungManLee, Yoon-yubPark, TeoanKim, HyunG.Cho, YoonJeongLee, JohnE.Repine 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.3 4 263-273 (11 pages)
The role of phospholipase A2 (PLA2) in acute lung leak induced by intestinal ischemia was investigated in association with neutrophilic respiratory burst. To induce lung leak, we generated intestinal ischemia for 60 min prior to the 120 min reperfusion by clamping superior mesenteric artery in Sprague-Dawley rats. Acute lung leak was confirmed by the increased lung leak index and protein content in bronchoalveolar fluid. These changes were inhibited by mepacrine, the non-specific PLA2... -
Acute Pulmonary Responses in Vivo to Silica Complexed with H+, Zn2+, or Fe3+
JiheeLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.2 8 183-189 (7 pages)
This investigation is to determine whether the surface complexation of iron influence acute pulmonary responses induced by silica. For this study, three varieties of cation complexed silica were used: silica-H, -Zn2, and -Fe3, since the first two are not active in the transport of electrons and generate little free radicals relative to the dust with the surface iron. Rats (270 to 280 g) were intratracheally (IT) instilled with saline, silica-H, -Zn2, or... -
Evidence for Adenosine Triphosphate (ATP) as an Excitatory Neurotransmitter in Guinea-Pig Gastric Antrum
TongMookKang, WenxieXu, SungJoonKim, SeungCheolAhn, YoungChulKim, InsukSo, MyoungKyuPark, Dae-YongUhm, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.2 6 165-174 (10 pages)
We explore the question of whether adenosine 5'-triphosphate (ATP) acts as an excitatory neurotransmitter in guinea-pig gastric smooth muscle. In an organ bath system, isometric force of the circular smooth muscle of guinea-pig gastric antrum was measured in the presence of atropine and guanethidine. Under electrical field stimulation (EFS) at high frequencies (＞20 Hz), NO-mediated relaxation during EFS was followed by a strong contraction after the cessation of EFS (a... -
Effect of the Inhibition of PLA2 on Oxidative Lung Injury Induced by Interleukin-1
YoungManLee, HyunGugCho, Yoon-YubPark, Jong-KiKim, YoonJeongLee, Won-HarkPark, TeoanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.5 10 617-628 (12 pages)
ㄍg/rat) was used to induce acute lung injury by neutrophilic respiratory burst. Five hours after IL-1 insufflation into trachea, microvascular integrity was disrupted, and protein leakage into the alveolar lumen was followed. An infiltration of neutrophils was clearly observed after IL-1 treatment. It was the origin of the generation of oxygen radicals causing oxidative stress in the lung. IL-1 increased tumor necrosis factor (TNF) and cytokine-induced neutrophil chemoattractant (CINC) in... -
Effect of the Inhibition of Platelet Activating Factor on Oxidative Lung Injury Induced by Interleukin-1α
YoungManLeeYoon-YubPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 13 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.4 10 479-491 (13 pages)
lung injury induced by interleukin- 1α (IL-1) in rats. An insufflation of IL-1 into the rat's trachea increased the acetyltransferase activity in the lung and the increase of PAF content was followed. As evidences of acute lung injury by neutrophilic respiratory burst, lung leak index, myeloperoxidase activity, numbers of neutrophils in the bronchoalveolar lavage fluid, neutrophilic adhesions to endothelial cells and NBT positive neutrophils were increased after IL-1 treatment. In addition, a... -
Cromakalim Blocks Membrane Phosphoinositide Activated Signals in the Guinea Pig Lung Mast Cells Stimulated with Antigen-Antibody Reactions
JaiYoulRo, JiYoungKim, KyungHwanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.2 14 251-260 (10 pages)
Cromakalim (BRL 34915), known as an airway smooth muscle relaxant, inhibited the releases of mediators in the antigen-induced mast cell activation. It has been suggested that cromakalim, in part, inhibited mediator releases by inhibiting the initial increase of 1,2-diacylglycerol (DAG) produced by the activation of the other phospholipase system which is different from phosphatidylcholine-phospholipase D pathway. The aim of this study is to further examine the inhibitory mechanism of cromakalim... -
Study on the Action by PAF on IL-1 Modulation in Alveolar Macrophages Involvement of Endogenous Arachidonate Metabolites and Intracellular Ca++ Mobilization
JiheeLee, Won-KiKim, Jong-SikHah 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.2 13 241-249 (9 pages)
in rat alveolar macrophages. In this study, we investigated the role of endogenous arachidonate metabolites and intracellular calcium mobilization in the PAF-induced IL-1 activity. Alveolar macrophages were preincubated with 5-lipoxygenase and cyclooxygenase inhibitors 30 min before the addition of PAF and lipopolysaccharide(LPS). After 24h culture, IL-1 activity was measured in the supernate of sample using the thymocyte proliferation assay. Inhibition of 5-lipoxygenase by nordihydroguaiaretic... -
Inducible Nitric Oxide Synthase mRNA Expression and Nitric Oxide Production in Silica-Induced Acute Inflammatory Lung Injury
JiheeLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.2 12 233-239 (7 pages)
which reacts with superoxide anion to form peroxynitrite, a more highly reactive toxic species. The objectives of the present study were to evaluate acute inflammatory lung injury and to determine iNOS mRNA induction and nitric oxide production by rat broncho-alveolar lavage cells following intratracheal treatment of silica. After 4 h exposure to silica, differential counts of broncho- alveolar lavage cells and lactate dehydrogenase(LDH) activity as well as total protein in the broncho-alveolar... -
Electrolysis of Physiological Salt Solution Generates a Factor that Relaxes Vascular Smooth Muscle
Pil-OhSongKi-ChurlChang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.2 10 217-223 (7 pages)
of rat aorta that had been contracted with phenylephrine. In the present study, therefore, we investigated the characteristics of this EIRF (electrolysis-induced relaxing factor) using rat isolated aorta. Results indicated that EIRF acts irrespective of the presence of endothelium. EIRF shows positive Griess reaction and is diffusible and quite stable. EIRF-induced relaxation was stronger on PE-contracted aorta than on KCl-contracted one, and inhibited by the pretreatment with methylene blue.... -
Changes in Cytosolic Ca2+ but not in cGMP Contents May be more Important to Nitric Oxide-Mediated Relaxation in Depolarized Vascular Smooth Muscle
HyunSeokLeeKiChurlChang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.1 8 63-68 (6 pages)
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비-혈관평활근에서 새로운 K+ 동로 개방제인 SKP-450의 약리 학적 작용의 특성 -Levcromakalim의 작용과 비 교
홍기환, 박지영, 김현희, 유성은 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.6 17 759-767 (9 pages)
(P<0.05)， which were inhibitable by 10-M glibenc1amide. The inhibitory 6 effect of SKP-450 (pD2， 7.66:t0.05) was significant1y more potent than that of LCRK (pD2， 6.77 :t0.06， P< 0.05). In the rat uterus stimulated by PGF2α (10- 7 M)， both increased tonus and spontaneous motility were e1iminated 5 by 10 V M LCRK with slight depression of the tonus， but not by SKP-450 (10 J M). The stimulated trachea of guinea-pig by 10 6 V.J M bethanechol was moderately suppressed by SKP-450 (10 V -
Platelet-Activating Factor Enhances Interleukin-1 Activity by Alveolar Macrophages Inhibition by PAF Specific Receptor Antagonists
JiheeLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.2 10 201-208 (8 pages)
It is becoming increasingly clear that the inflammatory reaction can be ascribed to a complex array of mediators generated and released from activated phagocytes. In this study, the effect of PAF on interleukin-1(IL-1) activity by rat alveolar macrophages(AM) was examined using thymocyte proliferation assay in the supernate of sample obtained after 24 hr culture. When AM were cultured with PAF alone, no change in IL-1 activity was observed. However, the combined addition of PAF and muramyl... -
Inhibition of Phospholipase A2 Diminishes the Acute Alveolar Injury Induced by Interleukin-1
YoungManLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.1 9 71-78 (8 pages)
rat), lung leak index, protein content, number of neutrophils, lung MPO and wet lung weight were increased significantly. Five hours after IL-1 instillation lung PLA2 activity was increased significantly, and increased surfactant release was observed in IL-1 induced ARDS rats' BAL. In contrast, in rats given mepacrine and IL-1, there was decrease of acute lung injury i.e. decrease of lung leak index, wet lung weight, protein content, number of neutrophils in BAL and decreased lung MPO activity.... -
ANP Inhibits Surfactant Secretion from Isoproterenol Stimulated Alveolar Type II Cells
YoungManLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.1 8 65-70 (6 pages)
of ANP on surfactant secretion from alveolar type II cell(AT II cell) during circulatory derangement in adult respiratory distress syndrome (ARDS), the secretion of surfactant from AT II cells was evaluated in purely isolated AT II cultures from rat lungs. For the simulation of sympathetic stimulation during circulatory derangement, primary AT II cultures were incubated with isoproterenol and IBMX. In this isoproterenol stimulated AT II cells, ANP were added in the media for the investigation of... -
심근세포 및 혈관 평활근에 대한 Nitric Oxide 작용의 민감성의 차이
박춘옥(Choon Ok Park), 강영진(Young Jin Kang), 이회영(Hoi Young Lee), 장기철(Ki Churl Chang) 대한약리학회 대한약리학잡지 6 Pages
대한약리학회 대한약리학잡지 1995, 제 31권 제 3호 2 279-284 (6 pages)
본 연구의 목적은 외부에서 nitric oxide (NO)를 투여 하였을때 심근 수축력, 심박동수의 변화 및 혈관 평활근에 대한 효과를 비교함으로서 NO에 대한 이들 장기의 민감도가 서로 같은지 또는 상이한지를 알아보고자 하였다. 본 실험에서는 PIANO 방법에 의한 근장력의 변화와 아울러 심근에서의 Ca2+ current를 측정하였다. 랫트의 심방근에 대한 PIANO (STZ, 100μM)는 심근수축력 및 심박동수에 전혀 변화를 주지 않았지만 혈관 평활근에서는 강한 이완 작용을 나타내었다. 한편, 8-Br-cGMP도 고농도 (100μM)에서만 심근 수축력을... -
동맥경화 예방과 치료를 위한 연구시도: Nitric Oxide의 역활 -광 유도 nitric oxide(PIANO)의 혈관이완에 따른 cyclic GMP의 증가
장기철(Ki Churl Chang), 정원석(Won Seog Chong), 박병욱(Byung Wook Park), 이승엽(Seung Youb Lee), 고학준(Hak Joon Ko) 대한약리학회 대한약리학잡지 6 Pages
대한약리학회 대한약리학잡지 1994, 제 30권 제 3호 7 331-336 (6 pages)
본 연구의 목적은 광 유도에 의한 nitric oxide (PIANO)유리가 혈관이완에 대해 cyclic GMP (cGMP)가 관여하는 지의 여부와 아울러 α-수용체를 통한 수축에 PIANO가 어떻게 작용하는 지를 파악하고자 하였다. In vitro 실험에서 흰쥐의 대동맥을 준 최고농도의 phenylephrine (PE)으로 수축시킨 후 nitric oxide 생성을 변화시키는 약물이나 광민감성 (photosensitizing) 약물에 대한 반응을 등장력 변화로 기록하였다. PIANO에 의한 혈관이완은 광노출 강도와 기간 및 광민감성 약물농도에 비례하여 증가하였고 cGMP의 증가를... -
뇌척수액내 Na+ 농도 증가에 의한 심혈관 반응과 Amiloride 민감성 Na+ Channel과의 관계
국현(Hyun Kook), 김재하(Jae Ha Kim), 백영홍(Yung Hong Baik) 대한약리학회 대한약리학잡지 8 Pages
대한약리학회 대한약리학잡지 1994, 제 30권 제 3호 5 313-320 (8 pages)
Na+ 이동에 관여하는 약물을 가토 측뇌실내로 투여하여 나타난 반응을 관찰함으로써 심혈관 조절 중추의 Na+ channel과 뇌척수액내 Na+ 농도의 상승에 의한 심혈관 반응과의 관계를 밝히고자 하였다. 1 M NaCl 200μl을 urethane으로 마취된 가토의 측내실내로 투여시 승압과 서맥이 나타났고 이 서맥은 미주신경 절단으로 빈맥으로 역전되었다. Na+ 이동억제제인 amiloride의 뇌실내 투여는 승압 및 서맥을 일으켰고 미주신경 절단으로 영향을 받지 않았으며 NaCl주입에 의한 심혈관계 반응에 영향을 미치지 않았다. Amiloride 유도체인... -
GS 283의 평활근 억제 작용기전
김시환(Si Hwan Kim), 이영수(Young Soo Lee), 정원석(Won Seog Chong), 장기철(Ki Churl Chang) 대한약리학회 대한약리학잡지 10 Pages
대한약리학회 대한약리학잡지 1994, 제 30권 제 1호 11 101-110 (10 pages)
Tetrahydroisoquinoline유도체인 GS 283의 약리학적 특성을 흰쥐 흉부대동맥, 기니픽 결장띠 및 토끼 장간막 동맥 및 흰쥐 뇌를 사용하여 조사하였다. 혈관 평활근에서 GS283은 고 K+에 의한 수축을 농도 의존적으로 억제하여 Ca2+ 길항작용을 보였다. 또한α1- 수용체 자극에 의한 수축도 억제하였다. GS 283의 혈관이완 작용은 propranolol영향을 받지 않으므로 β-수용체 자극작용에 의한 것이 아니었다. 세포내 칼슘이온과 근장력 변화를 동시에 측정하였을 때 GS 283의 억제효과는 조직내 형광의 증가를 수반했다. 이 증가는 fura... -
Cromakalim이 해명의 과민반응 매개체 유리에 미치는 영향
노재열(Jai Youl Ro), 김경환(Kyung Hwan Kim) 대한약리학회 대한약리학잡지 12 Pages
대한약리학회 대한약리학잡지 1993, 제 29권 제 2호 12 263-274 (12 pages)
K+통로는 기도 평활근 세포에 존재하며 이들 통로가 활성화되면 평활근의 과분극의 결과 이완작용이 나타난다. K+통로의 이런 효과는 과민반응과 천식 치료에 응용될 수 있으므로 우리는 K+통로 개방제인 cromakalim (BRL34915, CK)이 IgG1 항체로 감작시킨 기도 및 폐조직으로 부터 유리되는 매개체 유리에 미치는 영향을 조사하였다. 피동적으로 감작된 두 조직은 2 × 10-6 M의 CK로 30분동안 superfusion시킨 후 CK와 항원 (Ox-HSA) 0.1 mg/ml로 자극하였다. 또한 비만세포를 이용하여 CK의 효과를 조사하였다. 해명 폐조직... -
두개내압상승에 의한 혈압상승작용과 중추 GABA계 및 중추 α2-아드레날린 수용체와의 관계
김영식(Yung Sik Kim) 대한약리학회 대한약리학잡지 10 Pages
대한약리학회 대한약리학잡지 1993, 제 29권 제 1호 3 23-32 (10 pages)
GABA계가 뇌내의 교감신경계기능에 영향을 주어서 혈압조절에 관여함이 알려져 있다. 본 연구에서는 마취가토에서 GABA계가 두개내압증가에 의한 혈압상승에 관여하는가를 조사하였다. 두개내압증가에 의한 승압은 측뇌실내 muscimol (GABA 작용약)이나 clonidine (α2-작용약) 전처리후에는 볼 수 없었다. 측뇌실내 yohimbine (α2-길항약)으로 일으킨 고혈압은 두개내압증가를 하여도 더 이상 상승하지 않았으나, 측뇌실내 bicuculline (GABA 길항약)으로 일으킨 고혈압은 두개내압증가로 더욱 상승하였다. Bicuculline은 muscimol이나... -
가토 교감신경절에서 무스카린성 수용체 아형과 니코틴성 수용체의 상호작용에 대한 연구
김종근(Jong Keun Kim), 류춘식(Choon Sik Rhu), 강삼석(Sam Suk Kang) 대한약리학회 대한약리학잡지 10 Pages
대한약리학회 대한약리학잡지 1992, 제 28권 제 2호 6 171-180 (10 pages)
교감신경절 전달에 무스카린성 수용체 아형과 니코틴성 수용체가 기능적으로 어떻게 작용하는지를 알아 보기 위하여 척수가토에서 척수를 통한 교감신경절전섬유의 자극에 의한 승압반응과 신경절 M1수용체 및 니코틴성 수용체 흥분제인 McN-A-343과 DMPP의 승압반응에 대한 M1수용체 길항제인 pirenzepine, M2수용체 길항제인 AF-DX116 및 니코틴성 수용체 길항제인 mecamylamine의 영향을 조사하였다. 먼저 M1 및 M2수용체의 작용을 선택적으로 차단하는 pirenzepine과 AF-DX116의 용량을 구하기 위해 chlorisondamine-처리가토에서의... -
교감신경계, Renin-Angiotensin계, Vasopressin계의 차단이 혈압 및 Norepinephrine, Angiotensin II 및 Vasopressin의 승압효과에 미치는 영향
정행남(Haeng Nam Chung) 대한약리학회 대한약리학잡지 14 Pages
대한약리학회 대한약리학잡지 1992, 제 28권 제 1호 7 61-74 (14 pages)
마취가토에서 혈압유지에 중요한 역할을 하고 있는 교감신경계, renin-angiotensin계, vasopressin계를 차단하였을때의 혈압자체의 변동과 norepinephrine (NE), angiotensin II (AII) 및 vasopressin (VP)의 승압효과의 변동을 조사하였다. 교감신경계와 renin-angiotensin계의 차단에는 각각 교감신경절 차단약인 chlorisondamine (CS)과 pirenzepine (PZ), angiotensin 변환효소억제약인 enalapril (ENAL)를 사용하였다. VP계의 차단에는 혈장 VP농도를 하강시킴이 알려져 있는 kappa opioid 수용체의 작용약인 bremazocine (BREM)을... -
미세투석법을 이용하여 흰쥐 후 사상하부에서 세포외액의 모노아민과 대사체들의 생체내 측정
성기욱(Ki Wug Sung), 김성윤(Seong Yun Kim), 조영진(Young Jin Cho), 이권행(Kweon Haeng Lee), 이상복(Sang Bok Lee) 대한약리학회 대한약리학잡지 10 Pages
대한약리학회 대한약리학잡지 1992, 제 28권 제 1호 1 1-10 (10 pages)
최근에 개발된 생체내 미세투석법을 이용하여 정상혈압 흰쥐(WKY)와 자연발생성 고혈압 흰쥐(SHR)의 후 시상하부에서 세포외액의 모노아민과 그 대사체들을 측정하였다. 뇌정위 고정장치에 의해서 미세투석관을 후 시상하부에 위치시킨후 링거액으로 관류하였다. 모노아민과 그 대사체들은 고속액체 크로마토그라피와 전기화학 검출기를 이용하여 정량하였다. 미세투석관의 시험관내 회수율 검사 결과, 관류액의 유속과 신경화학물질의 상대적 회수율 사이에는 역비례 관계가 있음이 확인되었다. 정상 혈압 흰쥐에서 후 사상하부의...
