• Title/Summary/Keyword: concomitant

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ESTABLISHMENT OF BIOASSAY TO DETECT ESTROGENIC FLAVONOIDS USING STABLE MCF-7-ERE CELL AND MCF-7 CELL PROLIFERASTION ASSAY

  • Joung, Ki-Eun;Kim, Yeo-Woon;Sheen, Yhun-Yhong
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2001.10a
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    • pp.202-202
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    • 2001
  • Stable MCF-7-ERE cells, in which pERE-Luc reporter gene has been stably integrated into the genome of the MCF-7 cells, were used to detect the estrogenic activity of various dietary flavonoids.in either pure chemical or mixtures. Estradiol (E2) induced luciferase activity in dose dependent manner and this activity was inhibited by tamoxifen (Tam) concomitant treatment.(omitted)

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Effects of Aqueous Extracts of Pinus rigida on Protein and Isozyme patterns during Radish Germination (리기다소나무의 수용추출액이 무 종자의 발아과정에서 단백질과 동위효소 패턴에 미치는 영향)

  • 김용옥;이호준
    • The Korean Journal of Ecology
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    • v.21 no.6
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    • pp.771-777
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    • 1998
  • Aqueous extracts of Pinus rigida changed the electrophoretic patterns of total proteins and of hydrolytic enzymes such as peroxidase, esterase and amylase during the germination of radish (Raphanus sativus var. hortensis for. acanthiformis). When the extract treatment was finished, at the late stage of radish germination, aqueous extracts of P. rigida had suppressed the expression of 24 KD and 60 KD proteins. the extract induced new isozyme bands, indicating concomitant activity of peroxidases, esterase activities were stimulated in the cathodic region. The activity of amylase was enhanced by the extract.

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A Proposal of Geological Investigation method Concomitant with Ground Construction : In the Light of Southeast Korean peninsula. (건설공사에 수반되는 지질조사 방법에 대한 제안 : 한반도 동남부 지역을 중심으로)

  • 류춘길;김성욱;이현재;정성교
    • Proceedings of the Korean Geotechical Society Conference
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    • 2002.03a
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    • pp.87-92
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    • 2002
  • Engineering geological studies were conducted for igneous rocks in southeast Korean peninsula. The purpose of the study is to establish zoning in view of engineering geology in ground construction. For engineering geological implication, lithology, lineament structure and discontinuities were surveyed and analysed. Using constructed data, We compared geological and engineering geological characteristics and made out the detailed engineering geological map. The map responses engineering characteristics such as weathering degrees, discontinuity systems of different rock types.

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Robust Regression for Right-Censored Data

  • Kim, Chul-Ki
    • Journal of Korean Society for Quality Management
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    • v.25 no.2
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    • pp.47-59
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    • 1997
  • In this paper we develop computational algorithms to calculate M-estimators of regression parameters from right-censored data that are naturally collected in quality control. In the case of M-estimators, a new statistical method is also introduced to incorporate concomitant scale estimation in the presence of right censoring on the observed responses. Furthermore, we illustrate this by simulations.

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DIFFERENTIAL INDUCTION OF RAT LIVER MICROSOMAL CYTOCHROME-DEPENDENT MONOOXYGENASE AND UDP-GLUCURONOSYLTRANSFERASE ACTIVITIES BY VARIOUS NARCOTIC DRUGS

  • Hong, Young-Sook;Pae, Young-Sook
    • Toxicological Research
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    • v.5 no.1
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    • pp.17-25
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    • 1989
  • Chronic adminstraction of morphine to adult male rats has long been known to lower hepatic cytochrome p-450 content and its dependent mixed-function oxidase activity. Following the treatment of adult male rats with morphine, pethidine pentazocine and codeine and also by concomitant adminstration of naloxone activities of microsomal electron transfer in the adult male rats were examined. In present study, the acute treatment of mature male rats with a dose of narcotic drugs higher than that used chronically also reduces their hepatic cytochrome p-450.

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EFFECTS OF DICHLOROMETHANE ON CARBON TETRACHLORIDE HEPATOTOXICITY IN RATS

  • Kim, Dae B.;Kim, Baik H.
    • Toxicological Research
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    • v.5 no.1
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    • pp.37-41
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    • 1989
  • A non-hepatotoxic dose of dichloromethane (DCM) was examined for potential effects on the hepatotoxicity of carbon tetrachloride (CT) in adult male rats. A concomitant treatment of DCM (0.45ml/kg, po) significantly potentiated the hepatotoxicity of CT at varing doses (0.06 to 0.63 ml/kg, po) as determined by increase in SGOT and SGPT activities 24 hn following the treatments. The carboxyhemoglobin (COHb) saturation induced by DCM was significantly decreased by CT treatments. The potentiation of CT hepatotoxicity by DCM does not appear to be associated with increased metabolism of CT.

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Inhibition by Hyaluronan of Collagen-Induced Activation of Hepatic Stellate Cells

  • Lee, Gum-Hwa;Cho, Min-Kyung;Kim, Sang-Geon
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2003.10b
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    • pp.120-120
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    • 2003
  • Synthesis and distribution of extracellular matrix (ECM) components are dynamically altered in response to the pathophysiological processes including infection, inflammation and apoptosis. In particular, the levels of hyaluronan (HA) change with concomitant increases in the levels of collagen (e.g. type I collagen) and fibronectin in chronic liver diseases.(omitted)

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웅성 랫트에서 이염화메탄의 사염화 탄소 독성 증폭효과

  • 김대병;김영철
    • Toxicological Research
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    • v.9 no.2
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    • pp.253-262
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    • 1993
  • The effects of dichloromethane (DCM) on carbon tetrachloride (CT) toxicity were examined in adult male rats. A concomitant treatment of rats with DCM (0.3, 0.6, 1.2 g/kg, po) significantly potentiated the hepatotoxicity of CT (1.0 g/kg, po) as determined by increase in serum GPT (glutamic pyruvic transaminase), GOT (glutamic oxaloacetic transaminase), and SDH (sorbitol dehydrogenase) activity 24 hr following the treatments. Serum LDH (lactate dehydrogenase) activity was increased by either DCM or CT treatment.

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Management of Otogenic Brain Abscess Using the Transmastoid Approach

  • Choi, June;Choi, Jong Il;Kim, Sang-Dae
    • Journal of Korean Neurosurgical Society
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    • v.55 no.3
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    • pp.178-180
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    • 2014
  • Despite significant advances in the treatment of all forms of chronic otitis media (COM), complications still can and do occur, with intracranial complications representing the most life-threatening cases, often requiring immediate therapeutic intervention. Herein, we present a rare case of rapidly progressing facial paralysis with concomitant severe headache and ipsilateral hearing loss secondary to an otogenic brain abscess, treated with the transmastoid approach, drainage, and facial nerve decompression.

Massive cerebral venous sinus thrombosis secondary to Graves' disease

  • Son, Hye-Min
    • Journal of Yeungnam Medical Science
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    • v.36 no.3
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    • pp.273-280
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    • 2019
  • Cerebral venous sinus thrombosis (CVT) is a rare cerebrovascular condition accounting for 0.5-1% of all types of strokes in the general population. Hyperthyroidism is associated with procoagulant and antifibrinolytic activity, thereby precipitating a hypercoagulable state that predisposes to CVT. We report the case of a 31-year-old Korean man with massive CVT and diagnosis of concomitant Graves' disease at admission. Early diagnosis and prompt treatment of CVT are important to improve prognosis; therefore, CVT should be considered in the differential diagnosis in all patients with hyperthyroidism presenting with neurological symptoms.