1.A morphological study on residual alveolar ridges of edentulous jaws .
Ho Young CHOI ; Yi Hyung WOO ; Dae Gyun CHOI
The Journal of Korean Academy of Prosthodontics 1991;29(1):73-89
No abstract available.
Jaw, Edentulous*
2.Simultaneous Detection and Identification of Human Respiratory Syncytial Virus, Influenza Virus A ( H3N2 , H1N1 ) and B by One - tube Multiplex Reverse Transcription Polymerase Chain Reaction.
Yun Hyung PARK ; Young Dae WOO ; Sugn Kon KIM ; Hyung Joon BAE ; Sang Wook PARK
Journal of Bacteriology and Virology 2001;31(3):269-274
Respiratory syncytial virus (RSV) and Influenza virus are the most common pathogen for causing severe upper respiratory infection in all age groups. A multiplex reverse transcription polymerase chain reaction (RT-PCR) has been developed to detect and subtype influenza A (H3N2 and H1N1), B virus and RSV simultaneously in one tube reaction. Amplification with primers derived from conserved sequences within the nucleocapsid for RSV and hemagglutinin subunit for Influenza A (H3N2 and H1N1) and B viruses yielded a 384 bp, a 300 bp, a 236 bp and a 151 bp, respectively. Assay specificity was confirmed by pulse field gel electrophoresis and autosequencing method. Assay sensitivity was 3 PFU/ml of RSV, 22 PFU/ml, 45 PFU/ml of Influenza type A (H3N2 and H1N1) and 6.6 PFU/ml of Influenza B virus by plaque assay. A rapid and sensitive detection method of a one-tube with multiplex RT-PCR capable of identifying more than one viral template as well as synchronizing reverse transcription and PCR had the potential to produce considerable savings of time and cost effectiveness in the diagnostic laboratory.
Conserved Sequence
;
Cost-Benefit Analysis
;
Electrophoresis
;
Hemagglutinins
;
Herpesvirus 1, Cercopithecine
;
Humans*
;
Income
;
Influenza B virus
;
Influenza, Human*
;
Nucleocapsid
;
Orthomyxoviridae*
;
Polymerase Chain Reaction*
;
Respiratory Syncytial Virus, Human*
;
Respiratory Syncytial Viruses
;
Reverse Transcription*
;
Sensitivity and Specificity
3.A Case of Traumatic Globe Luxation.
Dae Young LEE ; Hyung Woo KWAK ; Sun Wook KIM
Journal of the Korean Ophthalmological Society 2003;44(10):2434-2438
PURPOSE: The globe luxation is a rare phenomenon in which there is a forward displacement of the eye ball so that the eye lids spasmodically close behind it. In Korea, no case has been reported. The authors experienced a case of globe luxation by laceration of the conjunctiva with trauma. METHODS: The authors experienced a case of globe luxation in 64-year-old male who had crushed with infantile marry-go-round handle and complained proptosis and ocular pain. Ocular examination revealed best corrected visual acuity of right eye 0.1, IOP 44mmHg, conjunctival hyperemia and laceration, extraocular muscle limitation in all direction. Exophthalmometer shows right eye 23mm, left eye 19mm. Orbital CT yielded proptosis and globe luxation without avulsion of internal and external rectus muscle and optic nerve. RESULTS: After the lateral canthotomy, we successfully treated with the corticosteroid therapy without visual impairment or eyeball movement disorder. we report a case of globe luxation with the review of literature.
Conjunctiva
;
Exophthalmos
;
Humans
;
Hyperemia
;
Korea
;
Lacerations
;
Male
;
Middle Aged
;
Movement Disorders
;
Optic Nerve
;
Orbit
;
Vision Disorders
;
Visual Acuity
4.A study of theinfluence on phonation when maxillary anterior teeth are missing.
Chang Sup ROH ; Dae Gyun CHOI ; Yi Hyung WOO ; Boo Byung CHOI
The Journal of Korean Academy of Prosthodontics 1992;30(3):338-360
No abstract available.
Phonation*
;
Tooth*
5.Emphysematous pyelonephritis : a case report and review of the literature.
Hyun Dae YOON ; Kyu Chang WON ; Chan Woo LEE ; In Ho JO ; Hyung Woo LEE ; Kyung Woo YOON ; Heun Ju LEE ; Hyun Woo LEE ; Cheol Kyu CHO
Yeungnam University Journal of Medicine 1993;10(2):537-543
Emphysematous pyelonephritis is a necrotizing renal infections characterized by intrarenal and occasional perirenal gas production. Although uncommon (89 cases in the literature), it occurs almost exclusively in diabetic patients (87% of the cases). Prompt and aggressive management is required to sahage these patients. We describe a recent case of a diabetic woman with emphysematous pyelonephritis due to E. Coll, successfully managed with unilateral nephrectomy.
Female
;
Humans
;
Nephrectomy
;
Pyelonephritis*
6.ADHESION OF CANDIDA ALBICANS ISOLATES TO ACRYLIC RESIN IN RELATION TO SALIVARY GLYCOPROTEINS IN DENTURE STOMATITIS PATIENTS.
Jung Hwan OH ; Boo Byung CHOI ; Dae Gyun CHOI ; Yi Hyung WOO ; Sung Bok LEE ; Kung Rock KWON
The Journal of Korean Academy of Prosthodontics 1999;37(5):698-713
Adherence of Candida albicans(C. albicans) to the surface of a denture is believed to be an initial and essential step in the formation of denture-induced stomatitis. Previous studies have provided enormous infomation on the relationship between composition of palatine gland/parotid saliva and upper denture stomatitis. Relatively little information is available on the correlation between lower denture stomatitis and sublingual-submandibular(SLSM) saliva. The plaque samples were collected from the two sites(100mm2) on the inner surface of lower partial denture corresponding to the stomatitis and healthy region of the lower partial dentures of 12 denture stomatitis patients and 6 normal persons who wore lower partial dentures. The samples were plated to isolate C. albicans on a selective Saboraud's dextrose agar plate and the isolates were identified by germ tube test and gram staining. The subjects were divided into group I (stomatitis with C. albican), group II (lesion without C. albicans), group III (no lesion but C. albicans), and group IV (normal and healthy denture wearer). Individual SLSM saliva (20microgram of protein) was analyzed by SDS-PAGE(SDS-poly-acrylamide gel electrophoresis) with Coomassie brilliant blue and PAS(Periodic Acid Schiff) staining. The salivary proteins separated in the polyacryamide gels were subjected to immunoblot analysis using anti-lactoferrin, anti-sIgA, and anti-secretory component of sIgA. In this study using custom made acrylic denture resin beads(5mm in diameter) coated with stimulated individual SLSM saliva, the binding ability of individual C. albicans strains to the beads was observed. Levels of C. albicans adhered to the acrylic resin beads were determined by measuring the optical density of the bound C. albicans to the beads at 580nm. The results showed that a higher number of C. albicans was observed in the lesion site than health site. The saliva of group I contained more high molecular weight glycoprotein(mucin, MG1) as compared to group II, III, and IV. And lactoferrin and sIgA affected to the binding ability of C. albicans to acylic resin beads. Binding ability of individual C. albicans to the acrylic resin coated with respective individual saliva was found to be greater in group I than the other 3 groups. And when bound cells of C. albicans isolated from individual subject #2 to the saliva coated beads were used, binding ability of subject #2 saliva coated beads was founed to be greater than the other subjects. These results suggested that denture induced stomatitis is related to individual patient's salivary protein composition, especially MG-1. Future studies will be directed toward saliva examination of patients who have general disease and analysis of pellicles formed on prosthesis with respect to oral disease.
Agar
;
Candida albicans*
;
Candida*
;
Denture, Partial
;
Dentures*
;
Gels
;
Glucose
;
Glycoproteins*
;
Humans
;
Immunoglobulin A, Secretory
;
Lactoferrin
;
Molecular Weight
;
Prostheses and Implants
;
Saliva
;
Salivary Proteins and Peptides
;
Stomatitis
;
Stomatitis, Denture*
7.A Case of Chronic Granulomatous Infection of Fusarium Solani.
Sung Woo CHOI ; Dong HOUH ; Dae Gyu BYUN ; Yung Hwan KIM ; Hyung Ok KIM ; Chung Won KIM
Korean Journal of Dermatology 1984;22(2):236-240
A case of chronic granulomatous infection of Fsarium solani had decreased response to recalled antigens and lacked of dinitrochlorobenzene(DNCB) sensitization in vivo. He has had frequent attacks of common cold-like symptoms and same attacks were very suggestive of pneumonia but he relatively healthy until he developed cutaneous Fusarium infection. Recently he also developed herpes zoster.
Fusariosis
;
Fusarium*
;
Herpes Zoster
;
Pneumonia
8.Expression of p58 in Fetal Thymocytes and Fetal Liver Lymphocytes.
Joo Deuk KIM ; In Hong CHOI ; Jeon Soo SHIN ; Se Jong KIM ; Dae Ho KWON ; Hyung Woo PARK ; Eui Cheol SHIN
Korean Journal of Immunology 1998;20(1):17-24
Bipotent progenitors for T and natural killer (NK) lymphocytes are thought to exist among early precursor thymocytes or liver lymphocytes. The identification of such a progenitor population or mature NK cells in such organs remains undefined. Here we report the identification of a novel receptor of NK cells, p58 (HLA class I-specific inhibitory receptors), in fetal thymocytes and fetal liver lymphocytes. Our finding suggests the NK cells mature in the developmental stage during feta1 ontogeny. Flow cytometric analysis revealed p58 positive cells in thymocytes or in fetal liver lymphocytes and reverse transcription PCR also showed amplification of p58 RNA. The result of single stranded conformational polymorphism (SSCP) showed it discriminates one or two base pair differences of the p58 gene. Although the question still remains as to whether the expression of p58 is due to the NK cells or natural T cells, it is clear the p58 is expressed in fetal thymocytes or liver lymphocytes. And SSCP analysis using appropriate sets of primers used in this study, is helpful to study the diversity of p58.
Base Pairing
;
Killer Cells, Natural
;
Liver*
;
Lymphocytes*
;
Polymerase Chain Reaction
;
Polymorphism, Single-Stranded Conformational
;
Reverse Transcription
;
RNA
;
T-Lymphocytes
;
Thymocytes*
9.Quantitative Analysis of Macular Thickness with OCT Map.
Dae Young LEE ; Seung Young YU ; Hyung Woo KWAK
Journal of the Korean Ophthalmological Society 2004;45(9):1496-1502
PURPOSE: To analyse the macular thickness in normal and diabetic patient using OCT mapping protocol. METHODS: OCT using macular thickness map protocol was performed in 46 eyes of 25 healthy volunteers and 121 eyes of 85 diabetic patients with clinical diagnosis of no diabetic retinopathy (25 eyes), nonproliferative diabetic retinopathy (NPDR) without clinically significant macular edema (CSME; 35 eyes), proliferative diabetic retinopathy (PDR) without CSME (27 eyes), and diabetic retinopathy with CSME (34 eyes). RESULTS: The mean +/- standard deviation foveal thickness was 146 +/- 21 micrometer in normal eyes, 147 +/- 20 micrometer in diabetic eyes without retinopathy, 173 +/- 24 micrometer in NPDR without CSME, 174 +/- 27 micrometer in PDR without CSME, and 322 +/- 146 micrometer in diabetic retinopathy with CSME. There was significant difference in foveal and outer temporal retinal thickness between the normal eyes and the diabetic retinopathy without CSME group (p<0.01). Diabetic eyes with CSME had a statistically significant greater thickness in each of the areas compared with the other group and showed perifoveal focal macular edema in 5 eyes. CONCLUSIONS: OCT mapping protocol provide intuitive and objective information on focal diabetic macular edema.
Diabetic Retinopathy
;
Diagnosis
;
Healthy Volunteers
;
Humans
;
Macular Edema
;
Retinaldehyde
;
Tomography, Optical Coherence
10.A Study of Ni-resistant bacteria isolated from gingival crevicular fluid on the patients wearing Ni-Cr alloy prosthesis (In terms of molecular biological aspects).
Young Ah CHAE ; Yi Hyung WOO ; Boo Byung CHOI ; Dae Gyun CHOI ; Sung Bok LEE ; Kung Rock KWON
The Journal of Korean Academy of Prosthodontics 1999;37(6):741-755
As a material of metal-ceramic prosthesis, nickel as a form of Ni-Cr alloy has been used for many dental prostheses in many cases. However, several problems in use of the alloy have been revealed (ex ; tissue stimulation, skin allergy, hypersensitivity, cytotoxicity and carcinogenecity). Little is known about nickel with respect to the relationship between Ni-prosthesis and gaining of Ni-resistance in oral microorganisms. The present study was undertaken to check wheather use of Ni-prosthesis leads to occurrence of Ni-resistant microorganisms. So this study may suggest the possible relationships between the oral microorganisms and nickel-resistance in oral enviroment. Bacteria were isolated from the gingival crevicular fluid on the patients wearing Ni-Cr prosthesis. The isolated bacteria were tested for their Ni-resistance in nickel containing media at different concentration from 3mM to 110mM. E. coli HB101 was used as control. The Ni-resistant bacteria were isolated and biochemically identified. The Ni-resistant bacteria were tested several biochemical, molecular-biological tests. Performed tests were ; measuring the growth curve, antibiotic test, growth ability test in liquid media, isolation of the chromosome and plasmid, digestion of DNA by restriction enzyme, electrophoresis of chromosome and plasmid DNA, identification of Ni-resistant genes by the DNA hybridization. The results were as follows: 1) The bacteria isolated from gingival crevicular fluid on the patients wearing Ni-Cr alloy prosthesis showed nickel-resistance. 2) The isolated microorganisms grew at nickel containing media of high concentrations (60mM-110mM). 3) Based on the biochemical tests, the isolated microorganisms were identified as Enterococcus faecalis(13 cases), Klebsiella pneumoniae(1 case) and Enterobacter gergoviae(1 case). 4) Enterococcus faecalis expressed not only nickel resistance but also the multi-drug resistanceto several antibiotics ; chloramphenicol, kanamicin, streptomycin, lincomycin, clindamycin. However all strain showed the sensitivity against the tetracycline. 5) DNA hybridization result suggest that there is no homology between the previousely known gene of nickel resistance in Klebsiella pneumoniae and chromosomal DNA Enterococcus faecalis.
Alloys*
;
Anti-Bacterial Agents
;
Bacteria*
;
Chloramphenicol
;
Clindamycin
;
Dental Prosthesis
;
Digestion
;
DNA
;
Electrophoresis
;
Enterobacter
;
Enterococcus
;
Enterococcus faecalis
;
Gingival Crevicular Fluid*
;
Humans
;
Hypersensitivity
;
Klebsiella
;
Klebsiella pneumoniae
;
Lincomycin
;
Nickel
;
Plasmids
;
Prostheses and Implants*
;
Skin
;
Streptomycin
;
Tetracycline