1.The bond strength of rebase resin to denture base resin.
Il Pyung KIM ; Hye Won CHO ; Tai Ho JIN
The Journal of Korean Academy of Prosthodontics 1993;31(4):515-522
No abstract available.
Denture Bases*
;
Dentures*
2.Surgical Treatment of the Paralytic Scoliosis
Se Hyun CHO ; Se Il SUK ; Won Sik CHOY
The Journal of the Korean Orthopaedic Association 1982;17(5):820-830
Paralytic scoliosis is a disease characterized by its long severe curve and the continuous progression of the deformity even after cessation of growth. It is also resistent to conservative treatment and more patients require surgical treatment than those with idiopathic or congenital curvature. Patients suffer from marked limitation of normal activities in walking and sitting due to imbalanced paralysis of trunk muscles and pelvic obliquity. The indication for the conservative treatment with Milwaukee brace allowing for skeletal growth in a straight alignment is much limited and surgical correction and fusion are almost always indicated even in a young age. This paper was aimed to review our experience with ninteen patients with paralytic scoliosis who were treated with various methods of preoperative corrections and surgery from Jan. 1970 to Dec. 1981 and the following results were obtained. 1. The average age when scoliosis was observed was 7.7 years but the average age of surgery was deferred to 17.7 years. 2. No treatment had been done until most of the patients could no longer maintain balanced posture in sitting and walking due to collapsing spine and marked pelvic obliquity. 3. The causes of paralysis were poliomyelitis in 15 cases, meningocele in two, cerebral palsy and Charcots disease in each one. 4. Preoperative average degree of scoliosis was 107.8° and the final correction was 47.9°(44.4%) with loss of correction 3.6° (3.4%) after 5.6 years of follow-up in average. 5. The more severe the curve was, the more flail was the spine and the more correction could be obtained. 6. Preoperative correction was performed for 16 cases and Harrington instrumentation and posterior fusion were performed for all cases except one meningocele with defect of posterior element in which Dwyer instrumentation was indicated. 7. Breakage of Harrington rod was observed in two cases 1.3 and 3.8 years postoperatively but no problem arose from it in seven and two years of follow-up respectively. 8. Significant pelvic obliquity was observed in seven cases, which were treated by Harrington instrumentation with sacral bar or sacral hook and posterior fusion extended to sacrum.
Braces
;
Cerebral Palsy
;
Congenital Abnormalities
;
Follow-Up Studies
;
Humans
;
Meningocele
;
Muscles
;
Paralysis
;
Poliomyelitis
;
Posture
;
Sacrum
;
Scoliosis
;
Spine
;
Walking
3.Three Cases of Vesicular Pemphigoid.
Gwan Yoon CHO ; Dae Sung LEE ; Baik Kee CHO ; Won Il KIM ; Won HOUH
Korean Journal of Dermatology 1986;24(4):523-526
We report herein three cases of vesicular pemphigoid that is a varient of bullous pemphigoid, occuring in 38-year old female, 51-year old male, and 35-year old female patients. They had recurrent and moderate to severe pruritic tense vesicles with symmetrical distribution chiefly on the head and neck areas. The histological findings showed subepidermal bullae which contained a few eosinophils and the direct irnmunofluorescent tests revealed linear deposition of IgG, IgM and C, on the basement mernbrane zone. Futhermore, all the patients showed a good response to dapsone.
Adult
;
Dapsone
;
Eosinophils
;
Female
;
Head
;
Humans
;
Immunoglobulin G
;
Immunoglobulin M
;
Male
;
Middle Aged
;
Neck
;
Pemphigoid, Bullous*
;
Transcutaneous Electric Nerve Stimulation
4.Amplification of c-myc oncogene and detection of point mutation of c-K-ras oncogene by paired polymerase chain reaction in human colorectal carcinoma.
Cho Hyun PARK ; Won Il CHO ; Suk Kyun CHANG ; Sang Yong CHOO
Journal of the Korean Cancer Association 1991;23(4):683-692
No abstract available.
Colorectal Neoplasms*
;
Humans*
;
Oncogenes*
;
Point Mutation*
;
Polymerase Chain Reaction*
5.Comparison between Group I in Which Non-Supine Apnea-Hypopnea Index> or =5 and Group II in Which Non-Supine Apnea-Hypopnea Index<5 in Patients with Positional Sleep Apnea.
Won Il PARK ; Hye Won JUNG ; Joon Bum JOO ; Ju Eun CHO ; Jong Yang KIM
Sleep Medicine and Psychophysiology 2013;20(1):31-34
OBJECTIVES: The aim of this study was to evaluate the differences in patients with positional dependent sleep apnea according to their non-supine apnea-hypopnea index (AHI, > or =5 vs. <5). METHODS: 92 patients with positional sleep apnea were evaluated. The patients were divided into two groups : group I was non-supine AHI having > or =5 ; group II was non-supine AHI having less than 5. Statistical analysis was performed to find the difference between two groups. RESULTS: In 92 patients, the number of group I patients was 11 (12%) and the number of group II patients was 81 (88%). In the severe AHI group, percentage of group I was dominated (70%) and showing a significant difference compared with the mild and moderate AHI groups (p<.05). In the severe body mass index (BMI) group, percentage of group I was dominated (54.5%) and showing a significant difference compared with of the mild and moderate BMI groups (p<.05). The percentage of group I was significantly higher than group II (p<.05) in the AHI, supine AHI, non-supine AHI and snore time. CONCLUSIONS: In patients with positional sleep apnea, severe OSA and high BMI are more common in patients with non-supine AHI> or =5 than non-supine AHI<5.
Body Mass Index
;
Humans
;
Sleep Apnea Syndromes
;
Sleep Apnea, Obstructive
6.The Changes of Adjacent Segments after Spinal Fusion: Follow-up more than Three Years after Spinal Fusion.
Jae Lim CHO ; Ye Soo PARK ; Joo Hee HAN ; Chang Hoon LEE ; Won Il ROH
Journal of Korean Society of Spine Surgery 1998;5(2):239-246
STUDY DESIGN: A retrospective analysis of 166 patients was undertaken to observe radiologically the changes of adjacent segments at follow-up more than three years after lumbar fusion. OBJECTIVES: The purpose of this study is to analyse the changes of adjacent segments and to correlate these changes to the length of using level and to the degree of deviation from physiologic lumbar lordosis. The authors also correlate these radiologic changes to the clinical symptoms. MATERIALS AND METHODS: In simple x-ray, authors observed traction spur, disc space narrowing, endplate sclerosis and vacuum phenomenon of adjacent segments. Authors used Gelb's criteria in segmental lordosis angle(SLA) and Katz's classification in clinical results. RESULTS: The average age was 49.6 years old and the average follow-up period was 57.2 months(4 years and 9.2 months). We observed radiologically the traction spurs in 35 cases(21.1%), end-plate sclerosis in 32 cases(19.3%), disc space narrowing in 33 cases(19.9%) and the vacuum phenomenon in 10 cases(6.0%). The numbers of fusion segments and the degree of unphysiologic segmental lordosis angle in fusion segments were related with the frequency and degree of changes of adjacent segments(P<0.05). The clinical results showed satisfaction in 142 cases(85.5%), unsatisfaction in 24 cases(14.5%) and low back pain in 24 cases(14.5%), leg pain in 11 cases(6.6%) and extension of fusion level in 4 cases(2.4%). In low back pain patients more than two kinds of radiological changes were frequently observed than the patients without low back pain(P<0.05). CONCLUSIONS: The radiological changes of adjacent segments were more frequently observed in long fusion and in fusion with unphysiologic lumbar lordosis angle. And these changes are frequently associated with low back pain. Thus long fusion and fusion with unphysiologic lumbar lordosis angle should be avoided if possible.
Animals
;
Classification
;
Follow-Up Studies*
;
Humans
;
Leg
;
Lordosis
;
Low Back Pain
;
Retrospective Studies
;
Sclerosis
;
Spinal Fusion*
;
Traction
;
Vacuum
7.A Study on 657 Skin Tumors.
Baik Kee CHO ; Won HOUH ; Sang il SHIM ; Chong Moo LEE
Korean Journal of Dermatology 1973;11(1):3-8
A study was made on 657 cases of skin tumors, which were obtained mainly as surgical pathology specimens during the period of 12 years and 4 months from January, 1960 to April, 1972, at Departments of Dermatology and Clinical Pethology, Catholic Medical Center in Seoul, and the results were as follow; 1) Of the 657 cases of skin tumors, 470 cases (71. 5%) were benign tumors, 26 casea (4.0%) premalignant lesions and 161 cases (24. 5%) malignant tumors. 2) The ratio of male vs. female was 1: 1 for benign tumor, 1: 1.9 for premalignant lesion and 1. 9: 1 for malignant tumor. 3) Among the benign tumors were 144 cases of cysticercosis, 68 cases of epidermal inclusion cyst, 46 cases of hemangioma and 45 cases of lipoma. 4) Arnong the premalignant lesions were 13 cases of leukoplakia, 5 cases of Nevus sebaceous (Jadassohn) and 4 cases of Bowen's disease. 5) The average age of malignant tumor was 53. 2 years for squamous cell carcinoma, 57. 2 years for basal cell carcinoma, and 35. 6 years for malignant melanoma. 6) The sites of predilection of the squamous cell carcinomas were penis (30. 6%), face (27. 4%) and upper and lower extremities (12.9%). The site of predilection of the basal cell carcinomas was face (88. 5%)., 7) The ratio of squamous cell carcinoma vs. basal cell carcinoma was 2. 4: 1. 8) Among the metastatic cancers of the skin the more frequent primary sites were stomach (3 cases), lung (2 cases) and liver (2 cases).
Bowen's Disease
;
Carcinoma, Basal Cell
;
Carcinoma, Squamous Cell
;
Cysticercosis
;
Dermatology
;
Female
;
Hemangioma
;
Humans
;
Leukoplakia
;
Lipoma
;
Liver
;
Lower Extremity
;
Lung
;
Male
;
Melanoma
;
Nevus
;
Pathology, Surgical
;
Penis
;
Seoul
;
Skin*
;
Stomach
8.Clinical and Histopathological Observation on Benign Melanocytic Tumor and Malignant Melanoma ( 1974 ~ 1984 ).
Dae Sung LEE ; Baik Kee CHO ; Won HOUH ; Sang In SHIM ; Soo Il CHUNG
Korean Journal of Dermatology 1986;24(3):364-372
This clinical and histopathological study was performed with 147 cases of benign mielanocytic tumors and 19 cases of malignant melanomas, which were obtained as surgical specimens from 1974 to 1984 at Department of Clinical Pathology, Catholic Medical College. The results were as follows: 1, In 89 cases of acquired benign melanocytic nevi, the average age of intradermal type(64 cases) was 34. 7 years and that of compound type(24 cases) was 24. 6 years. 2. In 30 cases of congenital nevus, nevus cells were present in the lower two thirds of reticular layer of the dermis in 93. 3% and in the subcutis as well in 3.3%. A case of giant congenital nevus with balloon cell appearance was found. 3. Of the 147 benign melanocytic tumors, a pigmented spindle cell nevus and a desmoplastic nevus were observed. 4. Blue nevi were 11 in number and excised from the face in 7, buttock in 2, shoulder in 1, upper arm in 1, and all were common type histopathologically. 5. Twelve malignant melanornas which were possible to be re-examined histopathologically were composed of 5 nodular type, 3 acral lentiginous type, 1 superficial spreading type and 3 metastatic malignant melanoma.
Arm
;
Buttocks
;
Dermis
;
Melanoma*
;
Nevus
;
Nevus, Blue
;
Nevus, Pigmented
;
Nevus, Spindle Cell
;
Pathology, Clinical
;
Shoulder
9.Multicentric Extrahepatic Tumor Involving the Gallbladder and Common Bile Duct A Case Report of Longterm Survival.
Chan Sup SHIM ; Wan Dong KIM ; Jin Hong KIM ; Sung Won CHO ; Yong Il KIM
Korean Journal of Gastrointestinal Endoscopy 1988;8(2):167-170
A 60-year-old woman has experienced of right upper quadrant abdominal discomfort. This partient took cholecytectomy due to gall stone 15 years ago. At that time microscopic finding the neck of gallbladder showed well differentiated papillary adenocarcinoma confined to superficial part of musele layer. 3 years before admission she took T-tube drainage due to obstructive jaundice. The microscopic finding af distal common bile duct showed well differentiated adenocarcinoma. Recently she complained of pain and discomfort on T-tube site and so we perforrned endoscopic retrograde biliary drainage after removal of T-tube. The computed tomogram showed no mass in liver or lymph node enlargement. 4 months after procedure of ERBD; we changed to the new catheter for the prevention of cloggiag of prosthesis. We report here a case of longterm survival over 15 years after the diagnosis of cancer of extrahepatic bile duct.
Adenocarcinoma
;
Adenocarcinoma, Papillary
;
Bile Ducts, Extrahepatic
;
Catheters
;
Common Bile Duct*
;
Diagnosis
;
Drainage
;
Female
;
Gallbladder*
;
Gallstones
;
Humans
;
Jaundice, Obstructive
;
Liver
;
Lymph Nodes
;
Middle Aged
;
Neck
;
Prostheses and Implants
10.Effect of Retrovirus and p53 Tumor Suppressor Gene in Gene Therapy of Cancer Cells.
Seong Il SUH ; Min Ho SUH ; Won Ki BAEK ; Jae We CHO
Journal of the Korean Society for Microbiology 1998;33(2):227-235
Cancer is considered to occur through abnormal growth and differentiation processes, in which oncogenes and tumor suppressor genes are deeply related. Cellular responses to DNA-damaging agents are believed to be critical determinants of human tumorigenesis. Cell cycle arrests and DNA repair following DNA damage require the coordination of multiple gene products that, as a whole, serve to maintain the integrity of the genome. Within the cell cycle, both G1-S and G2-M phase transitions are under constant surveillance by checkpoint genes for the protection of cells from either exogenous or endogenous DNA-damaging agents. p53 tumor suppressor gene mediates cell cycle perturbations in response to DNA damage, and play a role in cell death, genetic stability, and cancer susceptibility. Recently, gene therapy with p53 tumor suppressor gene is expected as a new effective therapeutic strategy in many kinds of cancer. By using retroviral vector system, we transduced p53 tumor suppressor gene into human osteosarcoma cells, and analysed its growth suppression and apoptosis inducing effects. Combined effects of p53 gene therapy with chemotherapeutic agent or radiation were also analysed. Titer of ecotrophic p53 retrovirus was 5.0x10/ml, and that of amphotrophic p53 retrovirus was 2.0x10/ml when NIH3T3 cells were used as target cells. Human osteosarcoma cells infected with amphotrophic p53 retroviruses showed increased p21waf1 gene expression, which acts as a major cyclin-dependent kinase inhibitor in DNA damage responses. In normal DMEM media, human skin fibroblasts infected with amphotrophic p53wt retroviruses showed very slow growing (1.7 fold increase in doubling time) and very low saturation density (50% decrease in cell density). In media containing chemotherapeutic agent, human osteosarcoma cells infected with p53wt retroviruses died rapidly; 75% of them died within 4 days and all of them died within 10 days of incubation with chemotherapeutic agent. Their DNAs were extracted and electrophoresed in agarose gel, and we identified DNA ladders characteristic of apoptotic cell death. When human osteosarcoma cells infected with p53 retroviruses were irradiated with ultraviolet light, more than 95% of cancer cells died within 1 day; whereas mock infected cells showed only less than 5% of cell death. These findings suggest that retroviral vector mediated p53 tumor suppressor gene transfer into cancer cells can suppress tumor cell growth and decrease tumor cell density effectively. These findings also suggest that effective induction of tumor cell apoptosis can be obtained when p53 gene therapy is used in combination with chemotherapy or radiotherapy.
Apoptosis
;
Carcinogenesis
;
Cell Count
;
Cell Cycle
;
Cell Cycle Checkpoints
;
Cell Death
;
DNA
;
DNA Damage
;
DNA Repair
;
Drug Therapy
;
Fibroblasts
;
Gene Expression
;
Genes, p53
;
Genes, Tumor Suppressor*
;
Genetic Therapy*
;
Genome
;
Humans
;
Oncogenes
;
Osteosarcoma
;
Phase Transition
;
Phosphotransferases
;
Radiotherapy
;
Retroviridae*
;
Sepharose
;
Skin
;
Ultraviolet Rays
;
Zidovudine