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Manufacture of an Injection Mould with Rapid and Uniform Cooling Characteristics for the Fan Parts Using a DMT Process
Ahn. Dong-Gyu, Park. Seung-Hwa, Kim. Hyung-Soo 한국정밀공학회 International journal of precision engineering and manufacturing 10 Pages
한국정밀공학회 International journal of precision engineering and manufacturing 2010, Vol.11 No.6 915-924 (10 pages)
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Rapid visual detection of Mycobacterium avium subsp. paratuberculosis by recombinase polymerase amplification combined with a lateral flow dipstick
Guimin Zhao, Hongmei Wang, Peili Hou, Chengqiang He, Hongbin He 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 2호 10 242-250 (9 pages)
robust method. The isothermal recombinase polymerase amplification (RPA) technique has applied for rapid diagnosis. Herein, RPA combined with a lateral flow dipstick (LFD) assay was developed to estimate DNA from Mycobacterium avium subsp. paratuberculosis. First, analytical specificity and sensitivity of the RPA-nfo primer and probe sets were assessed. The assay successfully detected M. paratuberculosis DNA in 30 min at 39°C with a detection limit of up to eight copies per reaction, which was... -
Prevalence, toxin gene profile, antibiotic resistance, and molecular characterization of Clostridium perfringens from diarrheic and non-diarrheic dogs in Korea
Jung-Whan Chon, Kun-Ho Seo, Dongryeoul Bae, Ji-Hee Park, Saeed Khan, Kidon Sung 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 3호 6 368-374 (7 pages)
Clostridium perfringens causes diarrhea and other diseases in animals and humans. We investigated the prevalence, toxin gene profiles, and antibiotic resistance of C. perfringens isolated from diarrheic dogs (DD) and non-diarrheic dogs (ND) in two animal hospitals in Seoul, Korea. Fecal samples were collected from clinically DD (n = 49) and ND (n = 34). C. perfringens was isolated from 31 of 49 DD (63.3%) and 21 of 34 ND dogs (61.8%). All C. perfringens strains were positive for the ... -
Effect of phosphorus deficiency on erythrocytic morphology and function in cows
Ziwei Zhang, Mingyu Bi, Jie Yang, Haidong Yao, Zhonghua Liu, Shiwen Xu 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 3호 10 333-340 (8 pages)
The aim of this study was to evaluate the influence of phosphorus (P) deficiency on the morphological and functional characteristics of erythrocytes in cows. Forty Holstein-Friesian dairy cows in mid-lactation were randomly divided into two groups of 20 each and were fed either a low-P diet (0.03% P/kg dry matter [DM]) or a control diet (0.36% P/kg DM). Red blood cell (RBC) indices results showed RBC and mean corpuscular hemoglobin decreased while mean corpuscular volume increased significantly... -
A novel low-cost method for Mycobacterium avium subsp. paratuberculosis DNA extraction from an automated broth culture system for real-time PCR analysis
Miguel Salgado*, Cristobal Verdugo, Cord Heuer, Pedro Castillo, Patricia Zamorano 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 2호 9 233-239 (7 pages)
PCR is a highly accurate technique for confirming the presence of Mycobacterium avium subsp. paratuberculosis (Map) in broth culture. In this study, a simple, efficient, and low-cost method of harvesting DNA from Map cultured in liquid medium was developed. The proposed protocol (Universidad Austral de Chile [UACH]) was evaluated by comparing its performance to that of two traditional techniques (a QIAamp DNA Stool Mini Kit and cethyltrimethylammonium bromide [CTAB] method). The results were... -
Sporozoite proteome analysis of Cryptosporidium parvum by one-dimensional SDS-PAGE and liquid chromatography tandem mass spectrometry
AMAM Zonaed Siddiki* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 2호 1 107-114 (8 pages)
Despite the development of new technologies, new challenges still remain for large scale proteomic profiling when dealing with complex biological mixtures. Fractionation prior to liquid chromatography tandem mass spectrometry (LC-MS/MS) analysis is usually the preferred method to reduce the complexity of any biological sample. In this study, a gel LC-MS/MS approach was used to explore the stage specific proteome of Cryptosporidium (C.) parvum. To accomplish this, the sporozoite protein of C.... -
Molecular characterization of the feline T-cell receptor γ alternate reading frame protein (TARP) ortholog
Alexander Th. A. Weiss*, Marie-Charlotte von Deetzen, Werner Hecht, Manfred Reinacher, Achim D. Gruber 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 4호 3 345-353 (9 pages)
T-cell receptor γ alternate reading frame protein (TARP) is expressed by human prostate epithelial, prostate cancer, and mammary cancer cells, but is not found in normal mammary tissue. To date, this protein has only been described in humans. Additionally, no animal model has been established to investigate the potential merits of TARP as tumor marker or a target for adoptive tumor immunotherapy. In this study conducted to characterize feline T-cell receptor γ sequences, constructs very... -
Pathotyping avian pathogenic Escherichia coli strains in Korea
Yong-Wun Jeong, Tae-Eun Kim, Jae-Hong Kim*, Hyuk-Joon Kwon* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 2호 5 145-152 (8 pages)
To examine the genetic background of avian pathogenic Escherichia coli (APEC) that affects virulence of this microorganism, we characterized the virulence genes of 101 APEC strains isolated from infected chickens between 1985∼2005. Serotypes were determined with available anti-sera and median lethal doses were determined in subcutaneously inoculated chicks. The virulence genes we tested included ones encoding type 1 fimbriae (fimC), iron uptake-related (iroN, irp2, iucD, and fyuA), toxins (lt,... -
In vitro maturation and fertilization of prepubertal and pubertal black Bengal goat oocytes
Momena Khatun, Mohammad Musharraf Uddin Bhuiyan, Jalal Uddin Ahmed, Aminul Haque, Mohammad Bozlur Rahman*, Mohammed Shamsuddin 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 1호 11 75-82 (8 pages)
Oocytes retrieval, in vitro maturation (IVM) and fertilization (IVF) efficiency are inevitable steps towards in vitro production of embryos. In the present study, these parameters were investigated in the ovaries of prepubertal (n = 31) and pubertal (n = 61) black Bengal goats obtained from a slaughterhouse. Nuclear maturation was evaluated upon aspiration and following IVM in TCM-199 (Earle's salt with L-glutamine and sodium bicarbonate) for 27 h at 39C under 5% CO2 in humidified air. The... -
Post-thaw development of in vitro produced buffalo embryos cryopreserved by cytoskeletal stabilization and vitrification
B. M. Manjunatha*, J. P. Ravindra, P. S. P. Gupta, M. Devaraj, T. G. Honnappa, A. Krishnaswamy 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2009, 제 10권 제 2호 9 153-156 (4 pages)
The present study was conducted to examine post-thaw in vitro developmental competence of buffalo embryos cryopreserved by cytoskeletal stabilization and vitrification. In vitro produced embryos were incubated with a medium containing cytochalasin-b (cyto-b) in a CO2 incubator for 40 min for microfilament stabilization and were cryopreserved by a two-step vitrification method at 24C in the presence of cyto-b. Initially, the embryos were exposed to 10% ethylene glycol (EG) and 10%... -
Efficacy of nano-hydroxyapatite prepared by an aqueous solution combustion technique in healing bone defects of goat
Samit Kumar Nandi, Biswanath Kundu*, Samir Kumar Ghosh, Dipak Kumar De, Debabrata Basu 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 2호 9 183-192 (10 pages)
The present study was undertaken to evaluate porous hydroxyapatite (HAp), the powder of which was prepared by a novel aqueous solution combustion technique, as a bone substitute in healing bone defects in vivo, as assessed by radiologic and histopathologic methods, oxytetracycline labeling, and angiogenic features in Bengal goat. Bone defects were created in the diaphysis of the radius and either not filled (group I) or filled with a HAp strut (group II). The radiologic study in group II showed... -
Changes of biomarkers with oral exposure to benzo(a)pyrene, phenanthrene and pyrene in rats
Hwan Goo Kang, Sang Hee Jeong*, Myung Haing Cho, Joon Hyoung Cho 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 4호 8 361-368 (8 pages)
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental contaminants present in air and food. Among PAHs, benzo(a)pyrene(BaP), phenanthrene (PH) and pyrene (PY) are considered to be important for their toxicity or abundance. To investigate the changes of biomarkers after PAH exposure, rats were treated with BaP (150 ■g/kg) alone or with PH (4,300 ■g/kg) and PY (2,700 ■g/kg) (BPP group) by oral gavage once per day for 30 days. 7-ethoxyresorufin-O-deethylase activity in liver... -
Short Communication : Loop-mediated isothermal amplification assay for the detection of Salmonella spp. in pig feces
Yong Kwan Kim , Ha Young Kim , Albert Byungyun Jeon , Myoung Heon Lee , You Chan Bae , Jae Won Byun 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 3 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2014, 제 54권 제 2호 8 113-115 (3 pages)
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Isolation and characterization of fowl adenovirus serotype 4 from chickens with hydropericardium syndrome in Korea
Hong Su Park , Il Soo Lim , Sang Kyu Kim , Toh Kyung Kim , Sang Geon Yeo 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 8 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2011, 제 51권 제 3호 5 209-216 (8 pages)
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Protective Effects of the Nuclear Factor Kappa B Inhibitor Pyrrolidine Dithiocarbamate on Experimental Testicular Torsion and Detorsion Injury
SahinKabay, HilmiOzden, GulGuven, DilekBurukoglu, MehmetCengizUstuner, FatmaTopal, HasanVeysiGunes, DeryaUstuner6, CansuOzbayer 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.4 6 321-326 (6 pages)
Testicular torsion results with the damage of the testis and it is a surgical emergency. Pyrrolidine dithiocarbamate (PDTC) is a low-molecular-weight antioxidant and potent inhibitor of nuclear factor kappa B (NF-κB) activation. In this study, we aimed to investigate the effects of PDTC to testicular torsion-detorsion (T/D) injury. Forty adult male Sprague-Dawley rats were separated into four groups. A sham operation was performed in group I. In group II, torsion is performed 2 hours by 720... -
Effect of Lutein on L-NAME-Induced Hypertensive Rats
JiHoonSung, YoungSooJo, SuJinKim, JeongSooRyu, MyungChulKim, HyunJuKo, SangSooSim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.4 12 339-345 (7 pages)
rapid progressive increase in mean arterial pressure (MAP). L-NAME significantly increased MAP from the first week compared to that in the control and reached 193.3±9.6 mmHg at the end of treatment. MAP in the lutein groups was dose-dependently lower than that in the L-NAME group. Similar results were observed for systolic and diastolic blood pressure of L-NAME-induced hypertensive rats. The control group showed little change in heart rate for 3 weeks, whereas L-NAME significantly reduced heart... -
Mechanisms of Selective Antimicrobial Activity of Gaegurin 4
HeejeongKim, ByeongJaeLee, MunHanLee, SeongGeunHong, PanDongRyu 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.1 7 39-48 (10 pages)
Gaegurin 4 (GGN4), an antimicrobial peptide isolated from a Korean frog, is five times more potent against Gram-positive than Gram-negative bacteria, but has little hemolytic activity. To understand the mechanism of such cell selectivity, we examined GGN4-induced K＋ efflux from target cells, and membrane conductances in planar lipid bilayers. The K＋ efflux from Gram-positive M. luteus (2.5</SUP>Ռg/ml) was faster and larger than that from Gram-negative E. coli (75Ռg/ml), while... -
Heat Acclimatization in Hot Summer for Ten Weeks Suppress the Sensitivity of Sweating in Response to Iontophoretically-administered Acetylcholine
Jeong-BeomLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2008, Vol.12 No.6 10 349-356 (8 pages)
To determine the peripheral mechanisms involved in thermal sweating during the hot summers in July before acclimatization and after acclimatization in September, we evaluated the sweating response of healthy subjects (n=10) to acetylcholine (ACh), a primary neurotransmitter involved in peripheral sudomotor sensitivity. The quantitative sudomotor axon reflex test (QSART) measures sympathetic C fiber function after iontophoresed ACh evokes a measurable reliable sweat response. The QSART, at 2 mA... -
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... -
Effect of Rosiglitazone on Myocardial Ischemia-Reperfusion Injury in Rat Heart
Ki-ChanHa 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.4 3 181-186 (6 pages)
This study was undertaken to evaluate whether peroxisome proliferator-activated-receptor-gamma (PPAR-γ) agonist-rosiglitazone (ROSI) induces postischemic functional recovery in Langendorf heart model. Hearts isolated from normal rats were subjected to 20 min of normoxia or 25 min zero-flow ischemia followed by 50 min reperfusion. In this acute protocol, ROSI (20μg/ml) administered 10 min before ischemia had no effect on hemodynamic cardiac function, but had protective effect on lipid... -
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... -
Buffering Contribution of Mitochondria to the [Ca2+]i Increase by Ca2+ Influx through Background Nonselective Cation Channels in Rabbit Aortic Endothelial Cells
YoungChulKim, SangJinLee, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.1 5 29-36 (8 pages)
To prove the buffering contribution of mitochondria to the increase of intracellular Ca2+ level ([Ca2+]i) via background nonselective cation channel (background NSCC), we examined whether inhibition of mitochondria by protonophore carbonylcyanide m-chlorophenylhydrazone (CCCP) affects endothelial Ca2+ entry and Ca2+ buffering in freshly isolated rabbit aortic endothelial cells (RAECs). The ratio of fluorescence by fura-2 AM (R340/380) was measured in RAECs. Biological state was checked by... -
Effect of Defibrotide on Rat Reflux Esophagitis
HyoungKiKim, SooRanChoi, SangJinChoi, MyungSupChio, YongKyooShin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.6 5 319-328 (10 pages)
This study was aimed at evaluating the effect of defibrotide on the development of the surgically induced reflux esophagitis, on gastric secretion, lipid peroxidation, polymorphonuclear leukocytes (PMNs) accumulation, polymorphonuclear leukocytes adherence, superoxide anion and hydrogen peroxide production in PMNs, scavenge of hydroxyl radical and hydrogen peroxide, cytokine (interleukin-1β, tumor necrosis factor-α) production in blood, and intracellular calcium mobilization in PMNs.... -
Roles of Na+-Ca2+ Exchange in the Negative Force-Frequency Relationship
ChangMannKoSoonJinKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.6 8 715-724 (10 pages)
5 minutes. The twitch amplitudes of LA elicited the typical negative staircases with 3-phased changes: the initial rapid increase, the second decrease and the following plateau at test frequencies. Verapamil (3⁓105 M) pretreatment elicited frequency-dependent suppression of the twitch amplitudes, exaggerating the negative staircase. Monensin pretreatment enhanced not the peak but the plateau amplitudes in a concentration-dependent manner. When the Na-Ca2 exchange was... -
In Vitro Cytotoxicity of Novel Platinum(II) Coordination Complexes Containing Diaminocyclohexane and Diphenylphosphines
Jee-ChangJung, Young-KyuKim, Seung-JoonPark, Joo-HoChung, Sung-GooChang, Kyung-TaeLee, Min-SonBaek, Jong-JipPark, Young-SooRho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.3 15 395-401 (7 pages)
We have synthesized new platinum(II) analogs containing 1,2-diaminocyclohexane (dach) as a carrier ligand, 1,3-bis(diphenylphosphino) propane (DPPP) /1,2-bis(diphenylphosphino)ethane (DPPE) as a leaving group and nitrates to improve solubility. In the present study, the cytotoxicity of [Pt(trans-l-dach)(DPPP)]·2NO3 (KHPC-001) and [Pt(trans-l-dach)(DPPE)]·2NO3 (KHPC-002) was evaluated and compared on various P-388 cancer cell lines and porcine kidney cell line (LLC-PK1). The new platinum... -
Association of Dexamethasone-induced Apoptosis and G1-Arrest of Human Leukemic CEM Cells with Polyamine Deficit
Sang-HyunChoi, Jung-AeLee, Yang-SeokChae, Bon-HongMin, Yeon-SookChun, Boe-GwunChun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.4 12 457-466 (10 pages)
The effects of DFMO or/and putrescine on the dexamethasone-induced apoptosis of CEM cells were studied to investigate the role of polyamines in anti-leukemic glucocorticoid action. Dexamethasone- induced apoptosis was preceded by significant decreases of cellular polyamine contents and putrescine uptake activity. But DFMO produced decreases of putrescine and spermidine contents and marked increase of putrescine uptake activity, but did not induce apoptosis. However, dexamethasone and DFMO,... -
Effect of t-butylhydroperoxide on Na+-dependent Glutamate Uptake in Rabbit Brain Synaptosome
HyunJeLeeYongKeunKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.4 3 367-376 (10 pages)
The effect of an organic peroxide, t-butylhydroperoxide (t-BHP), on glutamate uptake was studied in synaptosomes prepared from cerebral cortex. t-BHP inhibited the Na+-dependent glutamate uptake with no change in the Na+-independent uptake. This effect of t-BHP was not altered by addition of Ca2+ channel blockers (verapamil, diltiazem and nifedipine) or PLA2 inhibitors (dibucaine, butacaine and quinacrine). However, the effect was prevented by iron chelators (deferoxamine and phenanthroline)... -
Pathways Conducting Cerebellar Evoked Potentials in the Spinal Cord of Rat
Jin-Sook Cheon, Walter J. Levy 대한신경정신의학회 신경정신의학 15 Pages
대한신경정신의학회 신경정신의학 1991, 제 30권 제 3호 5 485-499 (15 pages)
소뇌유발전위는 소뇌피질의 전기적 자극후에 척수 및 말초신경을 따라 측정할 수 있다. 본 눈문에서는 소뇌유발전위가 추제외로 증상의 통합을 검사하는 임상적 도구로 사용될 수 있을 가능성이 제시되었다. 그러나, 소뇌유발전위의 기원과 경로는 아직 잘 이해되고 있지 못하다. 이 논문에서 저자들은 피질척수로, 척주, 적핵척수로 및 배측척수소뇌로가 차단된 척수의 급격한 병소를 만들므로써 소뇌의 경로를 연구하였다. 척수의 배측 반을 포함하는 T 5와 L1 사이에 가해진 급격한 병소는 병소 부위 아래에서 측정된 소뇌유발전위의... -
Changes of Polyamine Metabolism and Delayed Neuronal Degeneration of Hippocampus after Transient Cerebral Ischemia in Mongolian Gerbils
신경호(Kyung-Ho Shin), 신화정(Hwa-Jung Shin), 이영재(Young-Jae Lee), 김형건(Hyung-Gun Kim), 최상현(Sang-Hyun Choi), 천연숙(Yeon-Sook Chun), 전보권(Boe-Gwun 대한약리학회 대한약리학잡지 12 Pages
대한약리학회 대한약리학잡지 1996, 제 32권 제 3호 4 323-334 (12 pages)
a rapid decrease of the hippocampal SAMDC activity follwed by gradual recovery to the preischemic level, and the decrease of the SAMDC activity was slightly attenuated by DFMO or MGBG treatment. 7 Days after OBC7 the histological finding of the hippocampal complex stained with cresyl violet showed an extensive delayed neuronal damage in the CA1 region and to a lesser extent, in the dentate gyrus, sparing the CA3 region. And the neuronal death was aggevated by DFMO but significantly attenuated by... -
뇌허혈 손상에 있어서 해마-세포외액내 Glutamate와 Polyamine 농도의 변동에 관한 연구
신경호(Kyung-Ho Shin), 김형건(Hyung-Gun Kim), 최상현(Sang-Hyun Choi), 조소현(So-Hyun Cho), 천연숙(Yeon-Sook Chun), 전보권(Boe-Gwun Chun) 대한약리학회 대한약리학잡지 18 Pages
대한약리학회 대한약리학잡지 1994, 제 30권 제 3호 2 273-290 (18 pages)
뇌-허혈후 나타나는 신경세포의 손상에 glutamate의 과다한 유리와 그의 N-methyl-D-aspartate (NMDA) 수용체: calcium 통로 활성작용 및 polyamine중 putrescine의 증가로 인한 신경세포내 [Ca2+]의 상승과 관련 있다는 보고들이 있다. 본 연구에서는 Mongolian gerbil에서 5분간 경동맥을 차단하여 뇌-허혈을 가한후 재관류시 해마의 세포외액내 polyamine, glutamate, acetylcholine농도, 해마의 [3H]MK-801 결합능의 변동 및 해마조직소견의 변동에 미치는 비가역성 ornithine decarboxylase (ODC) 억제제인 difluoromethylornithine... -
Oxomemazine의 Muscarinic Receptor Subtypes에 대한 결합성질
이신웅(Shin Woong Lee), 김정구(Jeung Gu Kim) 대한약리학회 대한약리학잡지 10 Pages
대한약리학회 대한약리학잡지 1994, 제 30권 제 1호 6 49-58 (10 pages)
Oxomemazine이 muscarinic receptor subtypes에 대하여 선택성을 가지는지에 관한 지견을 얻고자, 대뇌, 심실 및 회장 muscarinic receptor에 대한 oxomemazine의 결합성질을 조사, 비교하였다. [3H]QNB 포화결합실험 결과 세 조직의 muscarinic receptor는 [3H]QNB에 대해서는 affinity가 약 60pM인 단일 receptor인 것으로 추정되었다. 대뇌에서 pirenzepine과 oxomemazine의 [3H]QNB 결합억제에 대한 Hill coefficient는 각각 0.67 및 0.8로서 대뇌에는 이들 약물에 대하여 affinity가 서로 다른 두 종류의 muscarinic receptor... -
백서 태자의 배양 피부세포에서 Adriamycin의 세포독성에 관한 연구
이경훈(Kyeong Hun Lee), 이상열(Sang Yeul Lee), 김진환(Chin Whan Kim), 김용식(Yong Sik Kim), 김명석(Myung-suk Kim) 대한약리학회 대한약리학잡지 10 Pages
대한약리학회 대한약리학잡지 1991, 제 27권 제 2호 12 197-206 (10 pages)
Adriamycin (Doxorubicin HCl)의 혈관밖 유출에 따른 조직의 손상, 특히 피부괴양 및 괴사 기전을 규명하기 위한 연구의 일환으로 흰쥐 피부세포를 이용한 in vitro 실험에서 adriamycin에 의한 산소라디칼 생성 및 그와 관련된 세포독성 기전으로 지질과산화를 검토하였다. Adriamycin은 흰쥐 태자 피부의 배양세포에서 lactic dehydrogenase(LDH) 유리를 용량 및 시간 의존적으로 증가 시켰으며, NADPH 및 NADH 첨가 조건에서 superoxide anion(O2-) 생성을 현저히 증가시켰다. Adriamycin은 지질과산화 반응의 척도인... -
경련성 전기충격에 의하여 나타나는 측뇌-피질과 피질을 제외한 대뇌의 Acetylcholine및 Polyamine 함량-변동에 관한 연구
최상현(Sang-Hyun Choi), 이학회(Hak-Hee Lee), 박청산(Chung-San Park), 전보권(Boe-Gwun Chun), 천연숙(Yeon-Sook Chun) 대한약리학회 대한약리학잡지 8 Pages
대한약리학회 대한약리학잡지 1991, 제 27권 제 1호 3 13-20 (8 pages)
뇌에 대한 경련성 전기충격(electroconvulsive shock: ECS)을 이용한 치료가 시작된 후, 50여년에 걸처 이의 생물학적 작용에 대한 연구가 있었으나, 이렇다할 결과가 아직 없으며, 특히 뇌의 신경전달물질중 가장 중요한 것으로 인정되는 acetylcholine의 함량이 ECS로 증가되는지 감소되는지 확실치 않다. 더욱이, 대체로 조직의 재생능에 비례하는 함량의 증감을 보이는 polyamine함량이 가장 재생능이 미약한 뇌에 고농도로 있으며 뇌의 국소에 따라서도 그 함량에 큰 차가 있고, 뇌의 polyamine-합성 또한 ECS에 의하여 촉진된다고... -
간-부분절제(肝-部分切除) 후 나타나는 재생과정(再生過程)에서 교감신경계(交感神經系)의 역할(役割)에 관(關)한 연구(硏究)
최상현(Sang-Hyun Choi), 이중근(Joong-Geun Lee), 박청산(Chung-San Park), 전보권(Boe-Gwun Chun), 천연숙(Yeon-Sook Chun) 대한약리학회 대한약리학잡지 8 Pages
대한약리학회 대한약리학잡지 1990, 제 26권 제 2호 10 177-184 (8 pages)
간-부분절제후 재생과정에서 간 polyamine 대사에 교감신경계가 촉진적으로 간여하는지를 확인하기 위하여 본 실험을 시행하였다. Guanethidine 25mg/kg를 1회 (G-1), 또는 매일 1회씩 3(G-3), 5(G-5) 및 6일간(G-6) 각각 복강내-주사하고, diethyl ether 마취하에서 웅성 백서의 간을 부분(70.4 ± 1.99%)-절제하여, 절제 전후의 혈압, 혈장 catecholamine치 및 간 polyamine 함량의 변동을 검토하여 다음의 성적을 얻었다. 1. 백서 꼬리에서 측정한 정상 수축기 혈압은 98.0 ± 3.9mmHg이며, 이는 G-1에 별 영향을 받지 않았으나, G-3,... -
생체의 Polyamine-분석을 위하여 FNBT-유도체를 이용하는 간편하고 특이적이며 예민한 Isocratic RP-HPLC 분석법과 재생성 흰쥐-간의 Polyamine-대사의 변동에 관한연구
최상현(Sang-Hyun Choi), 김형건(Hyung-Gun Kim), 박홍익(Hong-Ik Park), 전보권(Boe-Gwun Chun) 대한약리학회 대한약리학잡지 8 Pages
대한약리학회 대한약리학잡지 1988, 제 24권 제 2호 9 233-240 (8 pages)
복잡한 시료-전처리과정을 배제하여 간편하고 선택적이며 예민한 polyamine 측정방법으로써 4-fluoro-3-nitrobenzotrifluoride (FNBT)유도체 및 단일이동상을 이용하는 역상의 고속액체 크로마토 그래피 (HPLC) 방법과 아울러 이 방법을 이용한 흰쥐의 재생성간내 polyamine대사의 변동에 관한 관찰-결과를 요약하면 다음과 같다. 1. 간내-polyamine은 0.4M perchloric acid에 추출한 후 Spragg와 Hutchings의 방법에 따라서 FNBT로 N-2 -nitro-4 -trifluoromethylphenyl polyamine (NTP-polyamine) 유도체를 만들고 이를HPLC로 분석... -
Benzylacyclouridines의 적혈구에 있어서 Nucleoside 수송 억제
이강현(Kang-Hyun Lee), 차승만(Sung-man Cha ) 대한약리학회 대한약리학잡지 6 Pages
대한약리학회 대한약리학잡지 1988, 제 24권 제 1호 2 11-16 (6 pages)
BAU, HM-BAU, suc-BAU, BBAU, HM-BBAU, suc-BBAU, and BBBAU)이 uridine,의 사람 적혈구 내로의 수송(Zero-trans influx)에 미치는 영향에 관하여 rapid sampling technique을 이용하여 고찰하였다. 이 실헙에서 유리딘-비고리핵산들은 parent compounds인 BAU, BBAU와 같이 uridine 수송에 상경적인 억제작용을 보였다. 그러나 suc-BBAU와 BBBAU는 비상경적인 억제요소도 나타냈다. Uridine 수송억제제로서 효력의 크기는 BBAU ~ HM-BBAU ~ suc-BBAU>BAU ~ suc-BAU ~ HM-BAU이었으며, 그 억제상수는 각각 19, 23, 38, 112, 124, 174... -
국소마취제가 Mitochondria에서의 전자이동 및 Superoxide Radicals의 생성에 미치는 영향
이정수(Chung-Soo Lee), 신용규(Yong-Kyoo Shin), 이광수(Kwang-Soo Lee) 대한약리학회 대한약리학잡지 10 Pages
대한약리학회 대한약리학잡지 1987, 제 23권 제 2호 6 113-122 (10 pages)
국소마취제가 mitochondria에서의 전자이동 및 superoxide라디칼의 생성 그리고 지질의 과산화에 따른 malondialdehyde생성에 미치는 영향을 관찰하였다. 국소마취제는 전자이동계 의 효소활성도에 영향을 나타내었다. NADH dehydrogenase, NADH oxidase와 NADH-ubiquinone oxidoreductase의 활성도는 lidocaine, procaine과 dibucaine에 의하여 효과적으로 억제되었고 cocaine에 의하여 약간 억제되었다. Succinate dehydrogenase, succinate cytochrome c oxidoreductase와 succinate-ubiquinone oxidoreductase 활성도는 lidocaine 과...
