1.The Expression of Interleukin-6 in Chronic CCl4-induced Hepatotoxicity in Ethanol-fed Rabbits.
Sung Sook KIM ; Yeong Ju WOO ; Eun Hee HA ; Hee Jung SOHN ; Inpyoi CHOI
Korean Journal of Occupational and Environmental Medicine 1997;9(3):508-516
No abstract available.
Interleukin-6*
;
Rabbits*
2.Clinical significance and incidence of antineutrophil cytoplasmic antibody.
Jung OH ; Yeong Jin CHOI ; Seok Jin KANG ; Byung Kee KIM ; Sang In SHIM ; Sun Moo KIM
Korean Journal of Clinical Pathology 1993;13(2):295-302
No abstract available.
Antibodies, Antineutrophil Cytoplasmic*
;
Incidence*
3.A follow-up study on the chronological changes of HBV serologicmarkers in a rural community, Korea.
Bo Youl CHOI ; Yeong Tae KIM ; Ung Ring KO ; Sae Jung OH ; Hung Bae PARK
Korean Journal of Epidemiology 1991;13(1):6-22
No abstract available.
Follow-Up Studies*
;
Korea*
;
Rural Population*
4.Papillary Adenocarcinoma of Nonpigmented Ciliary Epithelium of the Eye.
Hyun Joo CHOI ; Yeong Jin CHOI ; Youn Soo LEE ; Eun Jung LEE ; Seok Jin KANG ; Byung Kee KIM ; Sang In SHIM
Korean Journal of Pathology 1998;32(12):1104-1107
Adenocarcinoma of the ciliary epithelium is a rare tumor, usually occuring in elderly patients who have a history of severe ocular trauma or chronic inflammation. We report an adenocarcinoma of the nonpigmented ciliary epithelium found within the phthisical globe of a 36-year-old female whose eye had been loss of vision since infancy. The mass, measured 4.0 x 4.0 cm, was relatively limited by sclera but had invasion to posterior portion. Histologically, the tumor was a compact mass which consisted of tubular and papillary structures with foci of the pleomorphic area. Strands of cells and individual cells were invested with thick basement membrane that have positivity for periodic acid-Schiff stain. Immunohistochemical staining showed strong reactivity for cytokeratin and epithelial membrane antigen, and focal for neuron-specific enolase and S-100 protein.
Adenocarcinoma
;
Adenocarcinoma, Papillary*
;
Adult
;
Aged
;
Basement Membrane
;
Epithelium*
;
Female
;
Humans
;
Inflammation
;
Keratins
;
Mucin-1
;
Phosphopyruvate Hydratase
;
S100 Proteins
;
Sclera
5.Effects of major blood components on CT number: an experimental study.
Sun Seob CHOI ; Sang Hee CHOI ; Seoung Oh YANG ; Yung Il LEE ; Jin Yeong HAN ; Jung Man KIM
Journal of the Korean Radiological Society 1992;28(4):559-564
The study was undertaken to evaluate the effect of major blood components on the CT number. The CT numbers according to the various levels of hematocrit, total protein and cholesterol were checked and analysed by the dilution of pack cell, plasma and 184 complete blood cell count samples under same scanning conditions. In case of normal protein and cholesterol level(33 samples), the CT number was increased about 5.5 hounsfield unit according to 10% increase of hematocrit level: and In case of normal hematocrit and cholesterol level(39 samles), the CT number was increased about 3.5 hounsfield unit according to 1gm% increase of protein level. CT number changes were not predictable according to the changes of cholesterol level(34 samples). From these results, we concluded that major blood components should be considered in the CT number analysis of tissue.
Blood Cell Count
;
Cholesterol
;
Hematocrit
;
Plasma Cells
6.Continuous Intratumoral Delivery of Chemotherapeutic Agent by Convection-enhanced Technique: Preliminary Clinical Study.
Yeung Jin SONG ; Ki Uk KIM ; Dong Geun JUNG ; Sun Seob CHOI ; Gi Yeong HUH ; Su Yeong SEO
Journal of Korean Neurosurgical Society 2004;35(3):240-245
OBJECTIVE: Because of the limited penetration into the central nervous system after systemic administration of numerous therapeutic compounds, intratumoral chemotherapy for brain tumors has also been used. However, the efficacy of intratumoral drug administration is restricted by the poor diffusion of drug through tumor and brain interstitium. In order to enhance the diffusion of chemotherapeutic agent and increase the cytotoxicity with minimal dose, the authors report the results of convection-enhanced delivery(CED) of chemotherapeutic agent to the malignant brain tumor as a method of enhancing cerebral drug delivery. METHODS: Authors used "CADD-Micro(R) ambulatory infusion pump" from Deltec, which can be programmed for continuous infusion. Intratumoral injection of chemotherapeutic drug using the pump was applied to eight patients with glioma and one patient with lymphoma. Surgery was done and tumor was removed as much as possible. The tip of catheter was placed in the center of tumor cavity. Adriamycin (0.16~0.32mg) was put in the reservoir which was connected to the proximal catheter and fixed in the pump device. Twenty-four hours after surgery, Adriamycin was infused. RESULTS: There was no adverse reaction of CED technique. Compared with current delivery techniques, the improvement of survival rate has been observed(5 patients: alive, 3 patients: dead, 1 patient: lost(alive to 5 mo.)). CONCLUSION: CED can be useful method for distributing therapeutic molecules in the interstitial space of tumor and can be utilized for chemotherapeutic agents, immunotoxins, and gene etc..
Brain
;
Brain Neoplasms
;
Catheters
;
Central Nervous System
;
Diffusion
;
Doxorubicin
;
Drug Therapy
;
Glioma
;
Humans
;
Immunotoxins
;
Lymphoma
;
Survival Rate
7.IKKγ Facilitates the Activation of NF-κB by Hepatitis C Virus Core Protein.
Bo Yeong KANG ; So Yeong LEE ; Jin Ik KIM ; Hye Jung CHOI ; Woo Hong JOO ; Dong Wan KIM
Journal of Bacteriology and Virology 2018;48(3):93-101
Hepatitis C virus (HCV) is a major cause of chronic hepatitis, liver cirrhosis and hepatocellular carcinoma. HCV core protein has been shown to modulate various cellular signaling pathways including the nuclear factor κB (NF-κB) pathway which is associated with inflammation, cell proliferation and apoptosis. However, there have been conflicting reports about the effect of HCV core protein on NF-κB pathway, and the mechanism by which the core protein affects NF-κB activity remains nuclear. In this study, the functional interaction of HCV core protein and IκB kinase γ (IKKγ) was investigated using the expression plasmids of core and the components of IKK complex. The data revealed that HCV core protein activates NF-κB. Also, HCV core protein up-regulated the phosphorylation and degradation of IκBα. The activating effect of HCV core protein on NF-κB was synergistically elevated by IKKγ. It was noticed that the N-terminal IKKβ binding site, C-terminal leucine zipper, and zinc finger domains of IKKγ are not necessary for its synergistic effect. HCV core protein and IKKγ appeared to activate NF-κB by up-regulating the IKKβ activity resulting in the degradation of IκBα. As expected, HCV core protein induced the expression of NF-κB-targeted pro-inflammatory genes such as iNOS, IL-1β and IL-6 in the transcription level. These results suggest that HCV core protein induces NF-κB through the interaction with IKKγ and may play a critical role in the development of inflammation and related liver diseases.
Apoptosis
;
Binding Sites
;
Carcinoma, Hepatocellular
;
Cell Proliferation
;
Hepacivirus*
;
Hepatitis C*
;
Hepatitis*
;
Hepatitis, Chronic
;
Inflammation
;
Interleukin-6
;
Leucine Zippers
;
Liver Cirrhosis
;
Liver Diseases
;
Phosphorylation
;
Phosphotransferases
;
Plasmids
;
Zinc Fingers
8.A case of emphysematous pyelonephritis.
Duck Ja JUNG ; Gyu Tae BANG ; Yong A BAIK ; Yeong Seung CHOI ; Hyung Gil KIM ; Dong Gyoon JUNG ; Geang Je OH ; Jo Young CHOI
Korean Journal of Infectious Diseases 1991;23(4):279-283
No abstract available.
Pyelonephritis*
9.Acanthamoeba Keratitis: Microscopic and Ultrastructural Findings: A case report.
Hee Jung LEE ; Yeong Jin CHOI ; Tae Won HAHN ; Seok Jin KANG ; Byung Kee KIM ; Sang In SHIM
Korean Journal of Pathology 1998;32(6):466-469
Acanthamoeba keratitis is uncommon and rarely reported in Korea. It has been reported in world literature as a very severe, progressive necrotizing stromal keratitis due to a non-parasitic free-living amoeba. It is frequently associated with minimal corneal trauma especially from contact lens but sometimes occurs in patients without any past history. We report a case of acanthamoeba keratitis without a specific past history in a 42-year-old man. Light and electron microscopy demonstrated severe stromal keratitis with numerous thick-walled cysts, 10~15 m in diameter, scattered in the superficial and deep stroma. Because this keratitis is most often mistaken for fungal, bacterial or herpetic keratitis, early confirmatory diagnosis by direct smear, biopsy or culture is essentially required for the prevention of visual loss or devastating eyeball loss.
Acanthamoeba Keratitis*
;
Acanthamoeba*
;
Adult
;
Amoeba
;
Biopsy
;
Diagnosis
;
Humans
;
Keratitis
;
Keratitis, Herpetic
;
Korea
;
Microscopy, Electron
10.Empowerment of Korean Medical Association with KMA Policy system developing.
Eol LEE ; Jung Chan LEE ; Seok Yeong KIM ; Jae Wook CHOI
Journal of the Korean Medical Association 2016;59(12):963-968
Recently, the Korean Medical Association (KMA) launched the KMA Policy system based upon the American Medical Association (AMA) Policy system. The KMA's official positions on health issues and medical ethics, as well as its constitution, bylaws, and directives, will be included in the KMA Policy system. The AMA's organizational structure and decision making process provided essential information for developing the KMA Policy system. Through the KMA Policy system, hereafter, the KMA should introduce a procedure not only to decide upon positions on various health issues but also a means to open them to the public. In addition, the KMA can expect the continuity and transparency of work, enhanced benefits to members, public credibility, and growth of its social reputation by means of KMA Policy. Furthermore, the system would be beneficial for both KMA members and the public, as they can easily access KMA Policy, and, in turn, access the healthcare systems of Korea and its medical knowledge. To achieve a successful KMA Policy system, the definite authority and responsibility should be granted to the organizational bodies of the KMA, for example, the House of Delegates and Board of Trustees, and the regional societies and other sections. These various groups must then efficiently divide up their work and cooperate systematically. Moreover, it is crucial that each individual member of the KMA pay much more attention to health issues and participate in the decision making process on KMA Policy.
American Medical Association
;
Constitution and Bylaws
;
Decision Making
;
Delivery of Health Care
;
Ethics, Medical
;
Financing, Organized
;
Humans
;
Korea
;
Power (Psychology)*
;
Trustees