1.Effect of decorin on tensile strength of healing flexor tendon.
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2000;27(1):83-86
Adhesion formed between tendon and its sheath after repair often impairs functional recovery. There have been many attempts to reduce adhesion around a repaired tendon, but most results have been unsatisfactory or impractical in clinical application. Moreover, most attempts were focused on extrinsic tendon healing. whereas studies on the intrinsic tendon healing are sacrce in the literature. We have previously reported that fibrotic tendon adhesion after repair was decreased by decorin, a natural inhibitor of TGF-beta. Accordingly, the serial tensile strength was measured after complete tensection and repair of the tendon severance in order to confirm the effect of decorin inhibition of intrinsic healing capability. Forty White Leghorn chickens were subject to complete transection and repair of the third toe flexor digitorum profundus tendon in Zone II. In the experimental group, 0.5ml of diluted decorin(50microgram/ml) was injected around the repaired site, and the same volume of saline solution in the control group. Tendons were harvested at 1, 3, 5 and 7 weeks. The disrupting force of the repair site was analyzed using tensiometry(LLOYD LR 30K, U.K). The tensile strength of repaired tendon was similar in both groups for all postoperative periods. This indicates that intrinsic healing proceeds normally within the decorin group in spite of the blockade of TGF-betaactivity. Decorin, a natural inhibitor of TGF-beta, showed a significant inhibitory effect on reducing post-repair tendon adhesions, without disruption of intrinsic healing in the chicken flexor tendon injury model. Therefore, decorin is expected to be a useful agent for preventnion on tendon adhesion after the repair in clinical usage.
Chickens
;
Decorin*
;
Postoperative Period
;
Sodium Chloride
;
Tendon Injuries
;
Tendons*
;
Tensile Strength*
;
Toes
;
Transforming Growth Factor beta
2.Cases of the surgical correction of facial asymmetry
Hong Yell HUH ; Sung Ki MIN ; Sang Ki CHO ; In Won JEONG
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1991;13(2):191-198
No abstract available.
Facial Asymmetry
3.A clinical study of Henich-Schonlein purpura in childhood.
Jong Won JEONG ; Sun Hee JEONG ; Un Ki YOON ; Ji Sub OH
Journal of Asthma, Allergy and Clinical Immunology 1998;18(4):672-680
BACKGROUND AND OBJECTIVE: The clinical manifestation of Henoch-Schonlein purpura and existance of renal involvement may influence on its course and prognosis. To verify prevention with early administration of steroid, we studied the efficacy of corticosteroid treatment. MATERIAL AND METHOD: We analysed 65 children under 15 years of age with Henoch-Scho nlein purpura according to their age, sex, and seasonal incidence. Forty children showed typical skin lesions, arthralgia and abdominal pain. We have divided them two groups. Group A consisted of 20 children who received 1 mg/kg of prednisolone/perday for 2 weeks and group B did not. We carried out their physical examination and urinalysis monthly for a year. RESULT: The main clinical manifestations were skin rash(100% ), abdominal symptoms(41.5 %), joint symptoms (49.2%), and renal involvement(34%). As for gastrointestinal symptoms, abdominal pain(66.7% ) was most commonly observed one and others were nausea or vomiting (44.7%) and melena(25.9%). The joint involvement was observed mostly in knee(56.3%) and ankle joint(31.3% ), Hematuria was observed in all cases with renal involvement and proteinuria, in 28% of them. The improvement of renal manifestations were noted in 84.2% of them within 4 months. Mild elevation of IgA was more frequently observed in renal involvement group than non-involved group (p< 0.01). There were no significant differences in immonologic parameters such as IgG, IgM, IgE, duration of the acute phase and severity of cutaneous symptoms between two growps. None of steroid treated growp showed progression of nephropathy. Of the 20 non-steroid treated growp, 2(10%) developed nephropathy. Conclusion We may suggest that existance of renal involvement in Henoch-Schonlein purpura influences its course and prognosis.
Abdominal Pain
;
Ankle
;
Arthralgia
;
Child
;
Hematuria
;
Humans
;
Immunoglobulin A
;
Immunoglobulin E
;
Immunoglobulin G
;
Immunoglobulin M
;
Incidence
;
Joints
;
Nausea
;
Physical Examination
;
Prognosis
;
Proteinuria
;
Purpura*
;
Purpura, Schoenlein-Henoch
;
Seasons
;
Skin
;
Urinalysis
;
Vomiting
4.A study on the regional blood flow of the hand.
Ki Jeong WON ; Byeong Il PARK ; Yong Bae KIM ; Woon Jae YANG ; Jong Sup PARK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(5):969-974
No abstract available.
Hand*
;
Regional Blood Flow*
5.An experimental study & clinical appliance of EMLA(eutectic mixture of local anesthetics).
Ki Jeong WON ; Yong Bae KIM ; Byeong Il PARK ; Yeong Man LEE ; Jong Sup PARK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(5):911-916
No abstract available.
6.Screening for Attention Deficit/Hyperactivity Disorder in Community Mental Health Services for Children.
Jae Won KIM ; Ki Hong PARK ; Min Jeong CHOI
Journal of Korean Neuropsychiatric Association 2004;43(2):200-208
OBJECTIVES: Developing mental health services and systems to identify children with Attention Deficit/Hyperactivity Disorder (ADHD) and providing early therapeutic interventions for them are important to prevent further impairments or disturbances associated with the disorder. The purpose of this study is to examine the clinical validities and efficiencies of Korean Child Behavior Checklist (K-CBCL) and Korean ADHD Rating Scale (K-ARS) for screening and identifying children with ADHD in community. METHODS: Randomly selected 1st to 3rd graders of the two elementary schools (n=1668) in the City of Gunsan participated in the study. K-CBCL and K-ARS were used as screening instruments. Diagnoses were determined by clinical psychiatric interviews and confirmed by Kiddie-Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version-Korean Version (K-SADS-PL-K) using DSM-IV criteria. RESULTS: The rate of inclusion above the T score of 60 with regard to the attention problems profile of K-CBCL was 4.5%. There was a significant correlation (p<.01) between parent and teacher reports of K-ARS, and the rate of inclusion was 2.5% when 90th percentile cut-off points were applied for both of the reports. Of the 46 subjects who underwent clinical psychiatric interviews, 33 (71.7%) were diagnosed as ADHD. The T score of 60 with regard to the attention problems profile of K-CBCL resulted in a reasonable level of sensitivity or positive predictive value in the diagnosis of ADHD. 90th percentile cut-off scores in both parent and teacher reports of K-ARS resulted in a high level of predictive value. The highest level of specificity and positive predictive value were computed when K-CBCL (T> or =60 in attention problems) and K-ARS (parent/teacher total> or =90th percentile) reports were combined. CONCLUSION: These findings suggest that the K-CBCL and K-ARS together could serve as a rapid and useful screening instrument to identify children with ADHD in epidemiologic case definitions.
Checklist
;
Child Behavior
;
Child*
;
Community Mental Health Services*
;
Diagnosis
;
Diagnostic and Statistical Manual of Mental Disorders
;
Humans
;
Jeollabuk-do
;
Mass Screening*
;
Mental Health
;
Mental Health Services
;
Mood Disorders
;
Parents
;
Sensitivity and Specificity
7.Two Cases of Cellulitis on the Saphenous Venectomy Scar after a Coronary Artery Bypass Graft.
Jae Jeong SEO ; Seong Jin KIM ; Seung Chul LEE ; Inn Ki CHUN ; Young Ho WON
Korean Journal of Dermatology 1998;36(1):177-180
We report two cases of cellulitis on the saphenous venectomy scar which developed after a coronary artery bypass graft(CABG). A 68-year-old male and a 62-year-old female developed acute cellulitis in the saphenous vein donor extremity after CABG. The repeated bacterial cultures were negative in both cases. However, onychomycosis was confirmed in one patient. The intervals between CABG and the initial bout of cellulitis in the male and female patient were 10 and 22 months, respectively. Although the exact pathogenesis remains obscure, factors such as direct bacterial infection, hypersensitivity to streptococcal exotoxins, a local compromise of lymphatic and venous drainage, and fungal infection might have contributed to the development of cellulitis in these patients.
Aged
;
Bacterial Infections
;
Cellulitis*
;
Cicatrix*
;
Coronary Artery Bypass*
;
Coronary Vessels*
;
Drainage
;
Exotoxins
;
Extremities
;
Female
;
Humans
;
Hypersensitivity
;
Male
;
Middle Aged
;
Onychomycosis
;
Saphenous Vein
;
Tissue Donors
8.A Clinical Observation of Cutaneous Malignant Tumors over 10 Years ( 1987-1996, Chonnam Province ).
Jae Jeong SEO ; Young Ho WON ; Seong Jin KIM ; Seung Chul LEE ; Inn Ki CHUN
Korean Journal of Dermatology 1998;36(5):812-819
BACKGROUND: The incidence of Cutaneous malignant tumors has increased recently and they have varied in their developing patterns according to social and environmental influences. However, we have little clinical data about the cutaneous malignant tumors in the Chonnam provinee. OBJECTIVE: Our purpose was to analyze the clinical characteristics of cutaneous malignant tumors observed in the Chonnam province and to compare them with the data previously reported in Korea. METHOD: We clinically analyzed 427 cases of cutaneous malignant tumors during a 10 year period betwecn January 1987 and Oetober 1996, at the Department of Dermatology, Chonnam Univemity Hospital in Kwangju. RESULTS: 1. The average armual incidence of cutaneous malignant tumors among the total number of outpatients was 1.00+/- 0.25%. The incidence tended to increase with time from 0.90+/-0.29% in the first 5 year-period to 1.15+/-0.09% in the late 5 year-period. The increasing rate was most pronmient in basal cell carcinoma. 2. The most common tumor in the 427 patients with malignant tumor was basal cell carcinoma (52.5%), followed by squamous cell carcinoma (19.9%), malignant melanoma (13.3%), metastatic carcinoma (3.7%), malignant lymphoma (2.3%). 3. The mean age of onset was 60.7+/-16.0 years old (male; 59.6+/-15.0, female; 61.9+/-17.1) in the in the group as a whole; 63.9 in BCC, 63.3 in SCC and 55.8 in malignant melanoma. The ratio of men to women was 1.14:l. 4. The most common site of a11 malignant tumors was the head and neck (64.6%), where 89.3% of BCC, 58.8% of SCC, and 15.8% of malignant melanoma developed. The next common site was the lower exlremities and feet (15.7%) followed by the trunk (7,7%), and upper extremities and hands (7.3%).
Age of Onset
;
Carcinoma, Basal Cell
;
Carcinoma, Squamous Cell
;
Dermatology
;
Female
;
Foot
;
Gwangju
;
Hand
;
Head
;
Humans
;
Incidence
;
Jeollanam-do*
;
Korea
;
Lymphoma
;
Male
;
Melanoma
;
Neck
;
Outpatients
;
Upper Extremity
9.Metamerism in composite resins under five standard illuminants - D65, A, C, FCW and TL84.
Ki Jeong PARK ; Yun Chan HWANG ; Sun Ho KIM ; Won Mann OH ; In Nam HWANG
Journal of Korean Academy of Conservative Dentistry 2003;28(5):402-408
This study was done to present a criterion in selection of the most proper light sources and materials by measuring metamerism index(MI) of the light curing composite resins with spectrocolorimeter. Metamerism is defined when two objects appear to be the same color in one illuminant but different in another. This is due to the fact that they have different spectral curves that fail to match under the second illuminant. In this study, A1 & A3 shade of five light curing composite resins (Esthet-X, Filteck Z250, Filteck A110, Charisma, Vitalescence) were chosen based on Vita shade. Five samples were made for shade of each product with Teflon mold (diameter: 15mm, thickness: 2mm). Metamerism index of each samples on a Barium sulfate plate (L*=96.54, a*=0.19, b*=0.01) prepared for sample fixation were measured with spectrocolorimeter(Miniscan XE plus, Model 4000s, Hunter Lab, USA) by applying standard light source D65, C, Fcw, TL84 and A. Standardization was done with reference standard (X=80.8, Y=85.7, Z=90.8) and light trap. The results were as follows. 1. Different resins with same Vita shade showed recognizable color difference(DeltaE*>2). 2. All composites had MI below accepted value 0.5 between standard illuminant(D65, C, & A) and below 1.5 under fluorescent condition (Fcw & TL84). 3. MI value between D65 and A showed higher value than MI value between other source of light(p<0.01). 4. All resins except Z250 showed MI value that A3 is higher than A1 between D65 and A(p<0.05).
Barium Sulfate
;
Composite Resins*
;
Fungi
;
Polytetrafluoroethylene
10.A Case Report of Caroli's Disease.
Hun Jong CHUNG ; Jeong Kee SEO ; Kwang Wook KO ; Kwi Won PARK ; Woo Ki KIM
Journal of the Korean Pediatric Society 1985;28(7):731-736
No abstract available.
Caroli Disease*