1.A study on the mandibular eccentric movement of the subjects with TMJ click in horizontal plane.
The Journal of Korean Academy of Prosthodontics 1993;31(2):237-248
No abstract available.
Temporomandibular Joint*
2.Diagnostic Significance of TNF-alpha in Tuberculous and Non-Tuberculous Pleural Effusion.
Hyun Joo NA ; Seog Chea PARK ; Kwang Won KANG ; Hyeong Kwan PARK ; Young Chul KIM ; In Seon CHOI ; Kyung Ok PARK
Tuberculosis and Respiratory Diseases 1997;44(3):611-620
OBJECTIVES: The differentiation of tuberculous effusion from the other causes of exudative pleural effusion remained difficult even with aids of biochemical analyses and pleural biopsy. As the pathophysiology of tuberculous pleural effusion is an enhanced cell mediated immunity, Adenosine deaminase(ADA) and various cytokines including Inteferon-γ, tumor necrosis factor alpha(TNF-α) are considered as useful diagnostic tools in differentiating exudative pleural effusion The author would like to demonstrate the diagnostic usefulness of TNF-α in the differentiation of exudative pleural effusion, and compared the discriminating ability of TNF-α with ADA. METHODS: Pleural fluids obtained from 80 patients (tuberculous : 39, malignant : 31, parapneumonic : 10) with exudate pleural effusions were processed for cell counts and biochemical analysis including ADA and TNF-α RESULTS: Tuberculous pleural fluid showed higher levee of ADA and TNF-α, 48.7α 32.7U/L and 184.1±214.2pg/mL than that of non-tuberculous effusion 26.0α41.3U/L and 44.1α114.2pg/mL, respectively (ADA, TNF-α : p<0.05, p<0.01). Receiver operating characteristics(ROC) curves were generated for ADA and TNF-α, and the best cut-off value for adenosine deaminase and TNF-α were considered as 30U/L and 15pg/ml, respectively. Comparing the area under the ROC curves, there was no significant difference between ADA and TNF-α CONCLUSION: For the differential diagnosis of tuberculous pleural effusion from the other causes of exudative pleural effusions, TNF-α as well as ADA was considered as useful diagnostic method. However adding TNF-α to ADA has no further diagnotic benefit than ADA alone.
Adenosine
;
Adenosine Deaminase
;
Biopsy
;
Cell Count
;
Cytokines
;
Diagnosis, Differential
;
Exudates and Transudates
;
Humans
;
Immunity, Cellular
;
Pleural Effusion*
;
ROC Curve
;
Tuberculosis
;
Tumor Necrosis Factor-alpha*
3.Develpoment of allergic asthma model using rat airway smooth muscle.
In Seon CHOI ; Young Il KOH ; An Soo JANG ; Hyun Ju NA ; Hyun Chul LEE ; Mee Kyung LEE ; Jong Un LEE
Korean Journal of Allergy 1997;17(3):201-212
Airway hyperresponsiveness is a consistent feature of asthma. Since the airway smooth muscle is hyperresponsive to a number of different stimuli operating through many different mechanisms, it is attractive to speculate that the abnormality may reside in the airway smooth muscle itself. Animal model of asthma is needed to unravel possible mechanisms underlying airway hyperresponsiveness and also to develop new therapeutic approaches. However, there are few reports showing that airway smooth muscle from animal asthma model is indeed hyperresponsive. In addition, sensitizing and provoking doses of allergen were different each other ambng the studies on animal asthma model. The aim of this study was to determine an appropriate sensitizing and provoking dose of allergen to induce a maximum airway hyperresponsiveness. Eighty-four male Sprague-Dawley rats were actively sensitized with a subcutaneous injection of 0, 10, or 1000/gg ovalbumin(OA) and 14 days later they were provoked with 0, 1, or 5 % OA aerosols. One day after the provocation, serum levels of OA-specific IgE, cell numbers in bronchoalveolar lavage fluid (BALF), and in vitro isometric contractile responses of the isolated tracheal smooth muscle(TSM) to 120 mM KC1, acetylcholine(ACh, 0.1~ 1000/micro meter), electrical field stimulation (EFS, 0.5~100Hz), serotonin(5-HT, 0.014 100/micro meter), and OA(10, 50, or 250 micro gram/ml) were measured. The results were as follows; 1) When 38 OA-sensitized rats were exposed to OA aerosols in vivo early asthmatic responses(EAR) were observed in 20(52.6%) rats. In vitro isometric contractile forces of TSM from rats with EAR were stronger than those from rats without EAR. 2) The maximal contractile responses to KC1 and EFS were significantly higher in rats only sensitized with OA compared with those in controls. The maximal response to ACh was significantly related to OA-specific serum IgE level(r=0.40, p%0.05), and the latter was in turn significantly related to the BALF eosinophil count(r=0.67, p<0.01). 3) When 10 microgram OA-sensitized rats were analyzed, the maximal response to KC1, ACh, EFS, and 250 micro gram/ml OA were lower in OA-provoked rats compared to those in saline-provoked control rats, in which 5% OA-provoked rats had a lower response than 1% OA-provoked rats. 4) The sensitivity of TSM to ACh was significantly higher in 10/micro gram OA-sensitized & OA-provoked rats, and the sensitivity to EFS was also significantly higher in 10/~g OA-sensitized & 5% OA-provoked rats compared to that in controls(p<0.05). 5) There was a significant correlation between the sensitivity of TSM to EFS and the counts of eosinophil or of lymphocytes in BALF(for eosinophil, r=-0.30; p<0.05, for lymphocyte, r=-0.35; p<0.05), or OA-specific serum IgE level(r=-0.46, p<0.01) in OA-sensitized & OA-provoked rats. This relationship was maintained in the data obtained only from 10 micro gram OA-sensitized & 5% OA-provoked rats. 6) The ratio of EFS-sensitivity to ACh-sensitivity was significantly lower in OA-sensitized & OA-provoked rats compared to that in controls or rats only sensitized with OA(p%0.05). 7) The Schultz-Dale phenomenon occurred in an in vitro dose-dependent manner. However, the inhaled provocation with OA in vivo resulted in a decrease in the contractile response to OA in vitro. There was a significant correlation between OA-specific serum IgE level and isometric response to 250 micro gram/ml OA(r=0.36, p<0.01). These results suggest that sensitization and provocation in vivo with OA in rats induces hypersensitivity of airway smooth muscle to cholinergic stimuli through an allergic inflammatory mechanism. The sensitivity was highest when sensitized to 10 micro gram OA and exposed to 5% OA aerosols.
Aerosols
;
Animals
;
Asthma*
;
Bronchoalveolar Lavage Fluid
;
Cell Count
;
Ear
;
Eosinophils
;
Humans
;
Hypersensitivity
;
Immunoglobulin E
;
Injections, Subcutaneous
;
Lymphocytes
;
Male
;
Models, Animal
;
Muscle, Smooth*
;
Rats*
;
Rats, Sprague-Dawley
4.Anterior Lens Capsule Abnormalities in Alport Syndrome.
Jae Hyuk CHOI ; Kyung Sool NA ; Seon Hee BAE ; Gyoung Hwan ROH
Korean Journal of Ophthalmology 2005;19(1):84-89
Alport syndrome is a hereditary, progressive disease characterized by progressive nephritis, sensorineural deafness, and ocular abnormalities, including anterior lenticonus. The ultrastructure of the lens capsule abnormalities in Alport syndrome is reported. Four anterior lens capsules from 31-year-old patient and 26-year-old patient with lenticonus who were affected by the Alport syndrome were obtained at capsulectomy. And all four anterior lens capsules were examined by transmission electron microscopy. The histopathologic findings showed that the thickness of the anterior lens capsules was decreased (4~13 micrometer) and that there were many vascular dehiscences localized at the inner part of the lens capsule. There were large numbers of capsular dehiscences containing fibrillar materials and vacuoles. The anterior capsules were clearly fragile in this disease, forming the basis for the progressive lenticonus and anterior polar cataract.
Adult
;
Epithelial Cells/ultrastructure
;
Humans
;
Lens Capsule, Crystalline/*ultrastructure
;
Lens Diseases/genetics/*pathology
;
Lens Implantation, Intraocular
;
Male
;
Nephritis, Hereditary/genetics/*pathology
;
Phacoemulsification
5.Comparison of Robot-Assisted Radical Prostatectomy and Open Radical Prostatectomy Outcomes: A Systematic Review and Meta-Analysis.
Hyun Ju SEO ; Na Rae LEE ; Soo Kyung SON ; Dae Keun KIM ; Koon Ho RHA ; Seon Heui LEE
Yonsei Medical Journal 2016;57(5):1165-1177
PURPOSE: To systematically update evidence on the clinical efficacy and safety of robot-assisted radical prostatectomy (RARP) versus retropubic radical prostatectomy (RRP) in patients with prostate cancer. MATERIALS AND METHODS: Electronic databases, including ovidMEDLINE, ovidEMBASE, the Cochrane Library, KoreaMed, KMbase, and others, were searched, collecting data from January 1980 to August 2013. The quality of selected systematic reviews was assessed using the revised assessment of multiple systematic reviews and the modified Cochrane Risk of Bias tool for non-randomized studies. RESULTS: A total of 61 studies were included, including 38 from two previous systematic reviews rated as best available evidence and 23 additional studies that were more recent. There were no randomized controlled trials. Regarding safety, the risk of complications was lower for RARP than for RRP. Among functional outcomes, the risk of urinary incontinence was lower and potency rate was significantly higher for RARP than for RRP. Regarding oncologic outcomes, positive margin rates were comparable between groups, and although biochemical recurrence (BCR) rates were lower for RARP than for RRP, recurrence-free survival was similar after long-term follow up. CONCLUSION: RARP might be favorable to RRP in regards to post-operative complications, peri-operative outcomes, and functional outcomes. Positive margin and BCR rates were comparable between the two procedures. As most of studies were of low quality, the results presented should be interpreted with caution, and further high quality studies controlling for selection, confounding, and selective reporting biases with longer-term follow-up are needed to determine the clinical efficacy and safety of RARP.
Humans
;
Male
;
Postoperative Complications/*etiology
;
Prostatectomy/*adverse effects/methods
;
Prostatic Neoplasms/surgery
;
Robotic Surgical Procedures/*adverse effects
;
Treatment Outcome
;
Urinary Incontinence/etiology
6.Asthmatic Airway Inflammation is More Closely Related to Airway Hyperresponsiveness to Hypertonic Saline than to Methacholine.
In Seon CHOI ; Seo Na HONG ; Yeon Kyung LEE ; Young Il KOH ; An Soo JANG ; Hyeon Cheol LEE
The Korean Journal of Internal Medicine 2003;18(2):83-88
BACKGROUND: Airway hyperresponsiveness (AHR) to direct stimuli, such as methacholine (MCh), is observed not only in asthma but other diseases. AHR to indirect stimuli is suggested to be more specific for asthma. The purpose of this study was to determine whether asthmatic airway inflammation is more closely related to AHR to hypertonic saline (HS), an indirect stimulus, than to MCh. METHODS: Sixty-four consecutive adult patients with suspected asthma (45 asthma and 19 non-asthma) performed a combined bronchial challenge and sputum induction with 4.5% saline, and MCh challenge on the next day. RESULTS: Both HS-PD15 and MCh-PC20 were significantly lower in asthma patients than in non-asthma patients. However, the sensitivity/ specificity for asthma was 48.9%/100%, respectively, in the HS test and 82.2%/ 84.2%, respectively, in the MCh test. There was a significant relationship between HS-PD15 and MCh-PC20 and only 52.9% of patients with MCh-PC20 < or= 4 mg/mL showed HS-AHR, but 4 patients with HS-AHR showed MCh-PC20 > 4 mg/mL. There were significant correlations between both HS-PD15 and MCh-PC20 and FEV1, or sputum eosinophils, but FEV1 was more closely related to MCh-PC20 (r=0.478, p < 0.01) than to HS-PD15 (r=0.278, p < 0.05), and sputum eosinophils were more closely related to HS-PD15 (r=-0.324, p < 0.01) than to MCh-PC20 (r=-0.317, p < 0.05). Moreover, the IL-5 level (r=-0.285, p < 0.05) and IFN-gamma/IL-5 ratio (r=0.293, p < 0.05) in sputum were significantly related to HS-PD15, but not to MCh-PC20. CONCLUSION: HS-AHR may reflect allergic asthmatic airway inflammation more closely than MCh-AHR.
Asthma/*physiopathology
;
Bronchial Hyperreactivity/*physiopathology
;
Bronchial Provocation Tests
;
Bronchoconstrictor Agents/*diagnostic use
;
Comparative Study
;
Female
;
Human
;
Male
;
Methacholine Chloride/*diagnostic use
;
Saline Solution, Hypertonic/*diagnostic use
;
Support, Non-U.S. Gov't
7.A Case of Toxic Epidermal Necrolysis Concomittantly Presented with GI Bleeding and Its Gastrofiberscopic Findings.
Na Young KIM ; Kye Heui LEE ; Seon Hee LIM ; Gyu Hyun LEE ; Yong Ju PARK ; Kyung Ju AHN ; Byung Chul LIM ; Joon Woo SHIN
Korean Journal of Gastrointestinal Endoscopy 1996;16(4):608-613
Toxic epidermal necrolysis (T~EN) is a severe mucocutaneous disease characterized by epidermal necrosis possibly extended to the entire body surface and involving multiple internal organs. Digestive tract may be involved too, but there is few report about gastrointestinal lesion in patient with TEN. Recently we experienced a case of TEN with gastrointestinal bleeding in previously healthy 32-year-old woman. The condition developed three days after the initiation of treatment with NSAID and progressed caudally, involving 60 percent of the skin surfaces. During a period of admission gastrointestinal bleeding was noticed. The gastrofiberscopy showed diffuse superficial mucosal lesion with oozing from swollen friable and erythematous mucosa. The skin lesion was progressed inspite of withdrawal of causative agents. The patient was expired due to combined septic shock 10 days later. We report this case with gastrofiberscopic findings and a brief review of literature.
Adult
;
Female
;
Gastrointestinal Tract
;
Hemorrhage*
;
Humans
;
Mucous Membrane
;
Necrosis
;
Shock, Septic
;
Skin
;
Stevens-Johnson Syndrome*
8.Complex Correction of Complete Cleft Lip with Severe Prominent Premaxilla using Lip Adhesion and Nasoalveolar Molding Device.
Bin Na SEO ; Su Han PARK ; Jeong Yeol YANG ; Kyung Min SON ; Ji Seon CHEON
Archives of Craniofacial Surgery 2015;16(1):31-34
Nasoalveolar molding (NAM) device is an effective treatment for protruding maxilla in infants with cleft palate. However, only a few studies have investigated the effect of NAM devices on the treatment of protruding maxilla in infants with cleft lip only. We have designed a combination treatment using NAM devices prior to cheiloplasy for cleft lip-only patients with severe anterior protrusion of the premaxilla. Three cleft lip-only infants with 1-cm or more of premaxilla protrusion were included. Definitive cheiloplasty was performed at 6 months of age without any preoperative correction in infant 1. Cheiloplasty was performed in conjunction with the use of NAM device and lip adhesion in infants 2 and 3. Postoperative columella length and anterior-posterior dimension of the protruding premaxilla were compared amongst the infants. We were able to obtain satisfactory postoperative columella length and general nasal appearance.
Cleft Lip*
;
Cleft Palate
;
Fungi*
;
Humans
;
Infant
;
Lip*
;
Maxilla
;
Orthodontic Appliances
9.Retrobulbar Hematoma in Blow-Out Fracture after Open Reduction.
Ji Seon CHEON ; Bin Na SEO ; Jeong Yeol YANG ; Kyung Min SON
Archives of Plastic Surgery 2013;40(4):445-449
Retrobulbar hemorrhage, especially when associated with visual loss, is a rare but significant complication after facial bone reconstruction. In this article, two cases of retrobulbar hematoma after surgical repair of blow-out fracture are reported. In one patient, permanent loss of vision was involved, but with the other patient, we were able to prevent this by performing immediate decompression after definite diagnosis. We present our clinical experience with regard to the treatment process and method for prevention of retrobulbar hematoma using a scalp vein set tube and a negative pressure drainage system.
Decompression
;
Drainage
;
Facial Bones
;
Hematoma
;
Humans
;
Orbit
;
Orbital Fractures
;
Retrobulbar Hemorrhage
;
Scalp
;
Veins
;
Vision, Ocular
10.Multiple Pulmonary Benign Metastasizing Leiomyoma.
Joon Kyung CHUN ; Kyo Seon LEE ; Kook Ju NA ; Sang Yun SONG ; Byoung Hee AHN
The Korean Journal of Thoracic and Cardiovascular Surgery 2007;40(11):789-792
We report here a case of pulmonary benign metastasizing leiomyoma from the uterus in a 45 year old woman. The patient presented for investigation of multiple pulmonary nodules on a routine chest roentgenogram. The patient had undergone uterine myomectomy due to uterine leiomyoma 10 years earlier. We performed thoracoscopic wedge resection for definitive diagnosis. Histologically, spindle shaped smooth muscle cells appeared between collagen stroma, histology similar to that seen in uterine myoma. The tumor tissue tested positive for estrogen and progesterone receptors. The pathological findings were consistent with benign metastasizing leiomyoma. The patient was in pre-menopause. She received no specific treatment for lung tumors, and we did not found any changes in the lesions after one year follow up without any medication.
Collagen
;
Diagnosis
;
Estrogens
;
Female
;
Follow-Up Studies
;
Humans
;
Leiomyoma*
;
Lung
;
Lung Neoplasms
;
Middle Aged
;
Multiple Pulmonary Nodules
;
Myocytes, Smooth Muscle
;
Neoplasm Metastasis
;
Premenopause
;
Receptors, Progesterone
;
Thorax
;
Uterine Myomectomy
;
Uterus