1.Photoelastic analysis of stress induced by fixed prostheses with rigid or nonrigid connection between natural tooth and osseointegrated implant.
Young Il KIM ; Chae Heon CHUNG ; Kyu Zong CHO
The Journal of Korean Academy of Prosthodontics 1993;31(2):271-300
No abstract available.
Prostheses and Implants*
;
Tooth*
2.Milia en Plaque.
Sang Hyun CHO ; Koo Seog CHAE ; Young Min PARK ; Baik Kee CHO
Annals of Dermatology 1997;9(2):174-176
Milia en plaque is characterixed by multiple milia-like lesions within an erythematous edematous plaque in the postauricular area. The histopathological findings are those of milia. We report a case of milia en plaque occurring on the scapha's fossa of the left auricle in a 3-year-old boy.
Child, Preschool
;
Humans
;
Male
3.A Case of Diffuse Biphasic Cutaneous Amyloidosis.
Young Min PARK ; Koo Seog CHAE ; Sang Hyun CHO ; Baik Kee CHO ; Chan Kum PARK
Annals of Dermatology 1997;9(4):281-285
We described a case of diffuse biphasic cutaneous amyloidosis, a unique form of localized cutaneous amyloidosis. A 41-year-old man has gradually developed a lichenoid papular and a grouped spotted pigmented macular eruption on the trunk and upper extremities over the past 15 years. Histopathologic examination revealed that amyloid deposits were present in the papillary dermis. It was confirmed by Congo red staining, immunohistochemistry and electron microscopy. There was no evidence of systemic amyloidosis.
Adult
;
Amyloidosis*
;
Congo Red
;
Dermis
;
Humans
;
Immunohistochemistry
;
Microscopy, Electron
;
Plaque, Amyloid
;
Upper Extremity
4.Association between the Expresson of MMP-2 and TIMP-2, and Growth Pattern of Tumor Border, Lymph Node Metastasis, and Estrogen Receptor in the Invasive Ductal Carcinoma of the Breast.
Soo Kee MIN ; Joon Mee KIM ; Young Chae CHU ; Young Up CHO ; Bom Woo YEOM
Korean Journal of Pathology 2000;34(5):366-373
The most important prognostic factor of breast cancer is the status of lymph node or distant metastasis, which is resisted by basement membrane and stromal matrix. MMP (matrix metalloproteinase)-2 is a 72-kilodalton type IV collagenase/ gelatinase and degrades the type IV collagen which is a main component of the basement membrane. Therefore, MMP-2 is believed to be one of the key molecule for cancer invasion and metastasis. Enzymatic activity of MMP is inhibited by TIMPs (tissue inhibitors of metalloproteinase). TIMP-2 forms a complex with latent pro-MMP-2 and inhibits the active forms of MMP-2. The balance of MMPs and TIMPs is suspected as the important factor of invasion and metastasis of the tumor cells. We studied the association between the expression of MMP-2/TIMP-2 and growth pattern of tumor border, lymph node metastasis, and estrogen receptor expression in the 57 cases of invasive ductal carcinoma of the breast using immunohistochemical staining methods. The results revealed increased expression of MMP-2 in the infiltrating tumor border and tumors with positive lymph node metastasis and negative estrogen receptor with no statistical significance (p>0.05). But the expression of TIMP-2 was increased in expanding tumor border and tumors with positive lymph node metastasis and negative estrogen receptor without statistical significance (p>0.05).
Basement Membrane
;
Breast Neoplasms
;
Breast*
;
Carcinoma, Ductal*
;
Collagen Type IV
;
Estrogens*
;
Gelatinases
;
Lymph Nodes*
;
Matrix Metalloproteinases
;
Neoplasm Metastasis*
;
Tissue Inhibitor of Metalloproteinase-2*
5.A Case of Epstein's Syndrome.
Seon Young CHOI ; Hyun Chul CHAE ; Hae Young CHO ; Hong Bae KIM ; Ji Sub OH
Journal of the Korean Pediatric Society 1994;37(11):1610-1614
Epstein's syndrome is a rare disease whish is characterized by the association of thrombocytopenia, macrothrombocytopathia, nephritis and deafness. We experienced a case of Epstein's syndrome in a 12 years old male patient who was presented with a life long history of bleeding, usually as epistaxis, bilateral sensorineural deafness and hematuria with proteinuria starting in late childhood. Hematologic studies showed thrombocytopenia with giant platelets and anemia. A bone marrow aspirate revealed the megakaryocytes to be adequate in number and many giant size platelets. Platelet do not respond to addition of A and epinephrine; collagen and ristocetin induced agglutination response is decreased. It is difficult to be certain the association of thrombocytopenia with giant platelets, nephritis and deafness constitutes a new hereditary disease with a distinct pathogenesis or if it is an expansion of the well recognized Alport's syndrome of hereditary nephritis deafness. We report a case of Epstein's syndrome syndrome with brief review of related literatures.
Agglutination
;
Anemia
;
Blood Platelets
;
Bone Marrow
;
Child
;
Collagen
;
Deafness
;
Epinephrine
;
Epistaxis
;
Genetic Diseases, Inborn
;
Hematuria
;
Hemorrhage
;
Humans
;
Male
;
Megakaryocytes
;
Nephritis
;
Nephritis, Hereditary
;
Proteinuria
;
Rare Diseases
;
Ristocetin
;
Thrombocytopenia
6.Contrast Enhancement Pattern in MR Imaging of Acute Cerebral Infarction.
Dong Hoon SONG ; Jong Deck KIM ; Mee Young CHO ; Chae Guk LEE
Journal of the Korean Radiological Society 1994;31(2):205-210
PURPOSE: To present the enhancement pattern of acute cerebral or cerebellar cortical infarctions aged 1-3 days on MR. MATERIALS AND METHODS: Contrast-enhanced MR images of 26 patients with acute cerebral or cerebellar ischemic events were retrospectively reviewed. MR was performed within 3 days after ictus. RESULTS: Contrast enhancement in the area of infarction was observed in 61.5% (16/26) on MR. Of these 50% (13/26) showed non-parenchymal enhancement (NPE) representing either vascular or leptomeningeal enhancement, 7.7% (2/26) showed parenchymal enhancement (PE), and 2.8% (1/26) showed both NPE and PE. The earliest enhancement was seen in images obtained 12 hours after the onset of symptoms and appeared as NPE. One patient showed NPE without apparent high signal intensity at the corresponding area on T2-weighted images. In 38. 5% (10/26), there was no enhancement. CONCLUSION: Contrast-enhanced MR imaging may be needed in acute ischemic infarction, because NPE may be seen as the earliest MR finding of acute cortical infarction aged 1-3 days.
Cerebral Infarction*
;
Humans
;
Infarction
;
Magnetic Resonance Imaging*
;
Retrospective Studies
7.Comparison of Depression and Cognitive Function between Elderly Welfare Recipients and Non-Elderly Welfare Recipients in a Public Health Center.
Journal of Agricultural Medicine & Community Health 2007;32(1):1-12
OBJECTIVES: This study was performed to provide the fundamental data available in the field of the elderly health of the low-income bracket by researching and comparing related factors for the assessment of the degree of depression and cognitive function between elderly welfare recipients and non-elderly welfare recipients. METHODS: The study subjects, 402 elderly person over 65-year-old in Daejeon were interviewed, during the two-month from May to June 2006, about their general characteristics, depression and cognitive function. RESULTS: elderly welfare recipients was higher than non-elderly welfare recipients in degree of depression on the other hand, in cognitive function is lower. Also, the depression and cognitive function were related with not only socio-demographic characteristics like the age, the degree of education, the presence of spouse or not and the health status but also health behavior characteristics like the sleeping time, the drinking and the exercise. CONCLUSIONS: The project of health promotion and programs that can improve the related factors to the depression and cognitive function for elderly welfare recipients should be developed and practiced.
Aged*
;
Depression*
;
Drinking
;
Education
;
Hand
;
Health Behavior
;
Health Promotion
;
Humans
;
Public Health*
;
Spouses
8.The Effect of Unilateral Orbital Enucleation on Acetylcholine and Muscarinic Receptors in Visual Pathway, and Physical Activity of Rats.
Yoon Hee KIM ; Young Sook PAE ; Byung Chae CHO
Journal of the Korean Ophthalmological Society 1995;36(5):855-867
Acetylcholine is one of the major neurotransmitters in visual system of rats. Cholinergic, serotonergic and gamma-aminobutyric acid(GABA) ergic projections are known as modulators of visual processing. The purpose of this study was to examine the effects of unilateral orbital enucleation on the amount of acetylcholine and its receptor bindings in dorsolateral geniculate body, superior colliculus and visual cortex of rats, and on motor activites. The amount of acetylcholine was measured by gas chromatography; whereas [3H]quinuclidinyl benzilate(QNB) bindings to muscarinic receptors were examined by autoradiography. Motor activity was measured by activity meter for 24 hours. The results of this study were as follows: 1. The amount of acetylcholine in superior colliculus significantly increased at 1 week after enucleation, but it decreased at 2 and 4 weeks after enucleation. In visual cortex, the amount of acetylcholine did not change at 1 week after enucleation, but it significantly decreased at 2 and 4 weeks after enucleation. 2. After enucleation, [3H]-QNB binding to muscarinic receptors gradually decreased over the 4 weeks in dorsolateral geniculate body, superior colliculus and visual cortex. 3. Locomotor activity of rats did not show any change at 1 week after enucleat ion, but it decreased at 2 and 4 weeks after enucleation. In conclusion, unilateral orbital enucleation resulted in a reduction in the amount of acetylcholine and muscarinic receptors in rat visual system, which was speculated to be a major cause of a decrease in physical activity.
Acetylcholine*
;
Animals
;
Autoradiography
;
Chromatography, Gas
;
Motor Activity*
;
Neurotransmitter Agents
;
Orbit*
;
Rats*
;
Receptors, Muscarinic*
;
Superior Colliculi
;
Visual Cortex
;
Visual Pathways*
9.In Vitro Magnetometric Evaluation for Toxicity to Alverolar Macrophage of Arsenic Compounds.
Korean Journal of Preventive Medicine 1999;32(4):467-472
OBJECTIVES: This study was conducted to evaluate the cytotoxicity of gallium arsenide(GaAs), indium phosphide(InP) and indium arsenide(InAs) all of which are used as the semiconductor eletments in semiconductor industry. METHODS: Cytotoxicity in the alveolar macrophage was evaluated by the measurement of in vitro magnetometry, LDH release assay and histological examination. RESULTS: The relaxation curves by the in vitro magnetometry showed that GaAs has the cytotoxicity for the alveolar macrophage which is more significant in the higher dosages, while this cytotoxicity is not appeared in the groups added with InP or InAs or PBS. In the decay constant for two minutes after magnetization, GaAs-added groups showed a significant decrease with increasing doses, but both InP- and InAs-added groups did not show any significance. The LDH release assay showed a dose-dependent increasing tendency in the GaAs-, InP- and InAs-added groups. In terms of cellular morphological changes, GaAs-added groups revealed such severe cellular damages as prominent destructions in cell membranes and their morphological changes of nucleus, while InP- and InAs-added groups remained intact in intracellular structures, except for cytoplasmic degenerations. CONCLUSIONS: It is suggested that GaAs is more influential to cytotoxicity of alveolar macrophages than InP and InAs.
Arsenic*
;
Arsenicals*
;
Cell Membrane
;
Cytoplasm
;
Gallium
;
Indium
;
Macrophages*
;
Macrophages, Alveolar
;
Magnetometry
;
Relaxation
;
Semiconductors
10.Limited Sympathicotomy Using 2mm Endoscope in Palmar Hyperhidrosis.
Deuk Chae JEONG ; Ha Young CHO
Journal of Korean Neurosurgical Society 2001;30(10):1177-1181
OBJECTIVE: Thoracoscopic T2 sympathicotomy had been performed as a simple and effective method in treating palmar hyperhidrosis, but some patients are not satisfied with the result of sympathicotomy due to compensatory hyperhidrosis. Therefore, a more limited T2 sympathicotomy using 2mm endoscope was introduced. We made a comparison between conventional T2 sympathicotomy and limited T2 sympathicotomy on operative results and compensatory hyperhidrosis. MATERIAL AND METHOD: From January 1998 to April 2000, 56 patients were treated by video assisted endoscopic thoracic sympathicotomy. Thirty patients of these underwent T2 sympathicotomy(Group A), and the remainders underwent limited T2 sympathicotomy(Group B). The limited T2 sympathicotomy is coagulation of the interganglionic fibers of T2 sympathetic ganglion on T2 rib head. The comparative analysis between two groups was based on the medical records and telephone interview results. RESULT: All patients were treated for excessive sweating on palms with 2mm endoscopic sympathicotmy. There were no mortalities, life-threatening complications except one recurrent patient who was treated successfully with re-operation(endoscopic sympathicotomy). Compensatory hyperhidrosis was common in group A. An individual satisfactory rate for the operations was higher in group B than in group A. CONCLUSION: The limited T2 sympathicotomy considered to be a more effective and less complicated method than the T2 sympathicotomy for the treatment of palmar hyperhidrosis.
Endoscopes*
;
Ganglia, Sympathetic
;
Head
;
Humans
;
Hyperhidrosis*
;
Interviews as Topic
;
Medical Records
;
Mortality
;
Ribs
;
Sweat
;
Sweating