1.The comparison of Conventional Pap smears with Liquid Pap smears (PrepStain(TM) System) in Cervical Pap smears.
Seung A LEE ; Jung Hye KIM ; Jo Eun KIM ; Hyun Ju PARK ; Weon Young CHOI ; Soon Ae OAK
Korean Journal of Obstetrics and Gynecology 2006;49(11):2371-2379
OBJECTIVE: To Compare the conventional Pap smear with the Liquid Pap smear in screening of cervical cancer and to evaluate the correspondence of their biopsy results. METHODS: From August 1, 2003 to July 31, 2005, the conventional Pap smears and the Liquid Pap smears were performed in 12,757 and 6,870 women, respectively. The results of 252 conventional Pap smear and 227 Liquid Pap smear were confirmed by colposcopic biopsy and evaluated for sensitivity, specificity, positive predictability, negative predictability and false negativity. RESULTS: In Liquid Pap smear, there were higher proportions of ASCUS, LSIL, HSIL and CIS. And the ratio of ASCUS/LSIL were 3.32 and 3.04 in conventional Pap smear and Liquid Pap smear respectively. The conventional Pap smear showed sensitivity 71.8%, specificity 93.9%, positive predictability 82.3%, negative predictability 89.4%, and false negativity 28.2%, while the Liquid Pap smear showed higher sensitivity (72.6%), specificity (96.1%), and positive predictability (89.8%), and lower negative predictability (88.0%), and false negativity (27.4%). The positive predictability was significantly higher (95% C.I.: 1.3-13.7). CONCLUSION: The positive predictability was significantly improved in the Liquid Pap smear. Therefore, the Liquid Pap smear is a more useful method in screening of cervical cancer.
Biopsy
;
Female
;
Humans
;
Mass Screening
;
Sensitivity and Specificity
;
Uterine Cervical Neoplasms
2.Two Cases of Surgical Treatment of Thoracic Tuberculous Spondylitis: Case Report.
Kang Jo LEE ; Chang Weon CHO ; Eui Jung KIM ; Bong Sik CHOI ; Sung Moon YOUN
Journal of Korean Neurosurgical Society 1999;28(6):861-865
Tow surgically treated cases of thoracic tuberculous spondylitis with multievel involvement are presented. Radical debridement produced large deficit in the anterior structures and spinal instability. A reconstruction with mesh cylinder graft and combined anterior instrumentation surgery in one stage operation. Anterior Instrumentation provided immediate stability and protected against development of kyphotic deformity. There was no persistence or recurrence of infection after surgery. The average length of follow up was 24month including 12month, 18month course of chemotherapy.
Congenital Abnormalities
;
Debridement
;
Drug Therapy
;
Follow-Up Studies
;
Recurrence
;
Spondylitis*
;
Transplants
3.Morphologic Change of Nasal Epithelium in Animal Model with Nasal Hyperreactivity.
Weon Jo CHOI ; Jin Uk JEONG ; Woo Jin JEON ; Ki Sang RHA ; Chan Il PARK
Korean Journal of Otolaryngology - Head and Neck Surgery 1998;41(7):883-891
BACKGROUND: Nasal hyperreactivity is a cardinal pathophysiological feature in allergic or nonallergic rhinitis. However, the mechanisms underlying nasal hyperreactivity are largely unknown. One of the proposed mechanisms is that epithelial damage may contribute to the development of nasal hyperreactivity. However, it is hard to find studies on this topic. OBJECTIVE: The aim of this study is to demonstrate whether the morphological change of nasal epithelium exists in animal model with nasal hyperreactivity or not. MATERIALS AND METHODS: Guinea pigs were sensitized in 10% TDI-ethyl acetate solution for 5 days, after which a recess of 3 weeks were allowed before exposing them in 5% TDI-ethyl acetate solution twice a week for 4 weeks. Thereafter, we observed the morphologic change of nasal mucosa with a light microscope and an electron microscope. RESULTS: Under the light microscopic observation, there were no morphological changes including epithelial damage in the TDI-provoked group. Under the electron microscopic, however, the widening of the intercellular space, the disruption of the basement membrane and the cytoplasmic vacuolization were observed. CONCLUSION: Morphological changes of the nasal epithelium were found in the animal model with nasal hyperreactivity under electron microscopic observation. Further studies to verify the relationship between the morphological changes and the nasal hyperreactivity will be needed.
Animals*
;
Basement Membrane
;
Cytoplasm
;
Extracellular Space
;
Guinea Pigs
;
Microscopy, Electron
;
Models, Animal*
;
Nasal Mucosa*
;
Rhinitis
4.The TNF-NF-κB-DKK1 Axis Promoted Bone Formation in the Enthesis of Ankylosing Spondylitis
Sungsin JO ; Bora NAM ; Young Lim LEE ; Hyosun PARK ; Subin WEON ; Sung-Hoon CHOI ; Ye-Soo PARK ; Tae-Hwan KIM
Journal of Rheumatic Diseases 2021;28(4):216-224
Objective:
This study aimed to determine the serum Dickkopf 1 (DKK1) levels in ankylosing spondylitis (AS) patients and decipher the mechanism of tumor necrosis factor (TNF)-mediated DKK1 regulation in human AS enthesis cells.
Methods:
The sera were obtained from 103 patients with AS and 30 healthy controls (HCs). The enthesis of facet joints were obtained from 4 AS patients and 5 controls. The serum levels of DKK1 were measured using ELISA and compared between AS and HCs. The impact of TNF on DKK1 expression in human primary spinal enthesis cells was evaluated using various molecular biology techniques and bone formation indicators.
Results:
AS patients showed higher serum DKK1 levels than HCs after adjusting for age (917.4 [615.3∼1,310.0] pg/mL vs. 826.2 [670.3∼927.8] pg/mL, p=0.043). TNF treatment promoted bone formation and DKK1 expression in both control enthesis cells and those of AS. This enhanced bone formation by TNF was pronounced in AS-enthesis than those of controls. Mechanically, TNF induced NF-κB activation upregulates the DKK1 transcript level. While, NF-κB inhibitor led to downregulate DKK1 expression in the enthesis. Besides, DKK1 overexpression promoted bone formation in enthesis.
Conclusion
TNF induced DKK1 expression in the enthesis through NF-κB activation. TNF-induced DKK1 expression may play a bone formation in the radiologic progression of ankylosing spondylitis.
5.The TNF-NF-κB-DKK1 Axis Promoted Bone Formation in the Enthesis of Ankylosing Spondylitis
Sungsin JO ; Bora NAM ; Young Lim LEE ; Hyosun PARK ; Subin WEON ; Sung-Hoon CHOI ; Ye-Soo PARK ; Tae-Hwan KIM
Journal of Rheumatic Diseases 2021;28(4):216-224
Objective:
This study aimed to determine the serum Dickkopf 1 (DKK1) levels in ankylosing spondylitis (AS) patients and decipher the mechanism of tumor necrosis factor (TNF)-mediated DKK1 regulation in human AS enthesis cells.
Methods:
The sera were obtained from 103 patients with AS and 30 healthy controls (HCs). The enthesis of facet joints were obtained from 4 AS patients and 5 controls. The serum levels of DKK1 were measured using ELISA and compared between AS and HCs. The impact of TNF on DKK1 expression in human primary spinal enthesis cells was evaluated using various molecular biology techniques and bone formation indicators.
Results:
AS patients showed higher serum DKK1 levels than HCs after adjusting for age (917.4 [615.3∼1,310.0] pg/mL vs. 826.2 [670.3∼927.8] pg/mL, p=0.043). TNF treatment promoted bone formation and DKK1 expression in both control enthesis cells and those of AS. This enhanced bone formation by TNF was pronounced in AS-enthesis than those of controls. Mechanically, TNF induced NF-κB activation upregulates the DKK1 transcript level. While, NF-κB inhibitor led to downregulate DKK1 expression in the enthesis. Besides, DKK1 overexpression promoted bone formation in enthesis.
Conclusion
TNF induced DKK1 expression in the enthesis through NF-κB activation. TNF-induced DKK1 expression may play a bone formation in the radiologic progression of ankylosing spondylitis.
6.A Case of Nasal Septal Perforation Due to Alkaline Disc Battery as a Nasal Foreign Body.
Ki Sang RHA ; Weon Jo CHOI ; Pil Jun KO ; Chan Il PARK
Korean Journal of Otolaryngology - Head and Neck Surgery 1997;40(2):300-303
Due to the common use of alkaline disc batteries(e.g. watches, electronic toys and games, calculators, cameras) physicians and the general public should be more aware of this battery foreign body and the peculiarities in their management. Alkaline disc batteries as foreign bodies in the nasal cavities are extremely rare but dangerous because they can cause liquefaction necrosis with subsequent severe local tissue destruction. Batteries found in the nasal cavities should be removed immediately to prevent sequelae such as septal perforations or nasal stenosis. We recently experienced a case of 4-year-old boy who revealed necrotic perforation of nasal septum which was exposed directly to a alkaline disc battery for 20 hours and the special aspects of these foreign body is discussed.
Child, Preschool
;
Constriction, Pathologic
;
Foreign Bodies*
;
Humans
;
Male
;
Nasal Cavity
;
Nasal Septal Perforation*
;
Nasal Septum
;
Necrosis
;
Play and Playthings
7.CLINICAL CHARACTERISTICS OF SECOND PRIMARY CANCER IN ORAL CANCER PATIENTS
Sae Hyung JO ; Jung Hyun SHIN ; Ui Ryoung LEE ; Joo Yong PARK ; Sung Weon CHOI
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2010;32(1):57-61
Body Mass Index
;
Breast
;
Cervix Uteri
;
Chemoprevention
;
Early Diagnosis
;
Esophagus
;
Female
;
Follow-Up Studies
;
Humans
;
Larynx
;
Liver
;
Lung
;
Male
;
Medical Records
;
Mouth
;
Mouth Neoplasms
;
Neoplasms, Second Primary
;
Polymethacrylic Acids
;
Prognosis
;
Risk Factors
;
Smoke
;
Smoking
;
Stomach
;
Survival Rate
8.Analysis of Outcome and Complications in 164 Cases of Free Flap Reconstructions: Experience of a National Cancer Center
Jae Ho JEON ; Sung Won PARK ; Sae Hyung JO ; Joo Yong PARK ; Jong Ho LEE ; Sung Weon CHOI
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2011;33(6):478-482
Delirium
;
Diabetes Mellitus
;
Fibula
;
Fistula
;
Forearm
;
Free Tissue Flaps
;
Humans
;
Hypertension
;
Incidence
;
Mouth Neoplasms
;
Necrosis
;
Osteoradionecrosis
;
Pneumonia
;
Postoperative Complications
;
Retrospective Studies
;
Risk Factors
;
Smoke
;
Smoking
;
Surgery, Oral
;
Thigh
;
Tissue Donors
;
Wound Healing
9.EDTA-dependent Pseudothrombocytopenia Confirmed by Supplementation of Kanamycin: A Case Report.
Hae Lyun AHN ; Young Il JO ; Young Suk CHOI ; Jung Yeon LEE ; Hae Woon LEE ; Seong Ryul KIM ; Joon SIM ; Weon LEE ; Chun Jo JIN
The Korean Journal of Internal Medicine 2002;17(1):65-68
EDTA-dependent pseudothrombocytopenia (PTCP) is the phenomenon of a spurious low platelet count due to EDTA-induced aggregation of platelets. Since the failure to recognize EDTA-dependent PTCP may result in incorrect diagnosis and inappropriate treatment, the recognition of this phenomenon is very important. We report an insidious case of EDTA-dependent PTCP confirmed by supplementation of kanamycin to anticoagulant in a 53-year-old women. Although sodium citrate and heparin usually prevented the aggregation of platelets in EDTA-dependent PTCP patients, these anticoagulants failed in preventing PTCP in our case. EDTA-dependent PTCP was confirmed by the findings that the clumping of platelets on microscopic evaluation was found in EDTA-anticoagulated blood samples, whereas thrombocytopenia and platelet aggregation were not revealed in the sample supplemented with kanamycin.
Antibiotics, Aminoglycoside/*pharmacology
;
Anticoagulants/*adverse effects/pharmacology
;
Case Report
;
Edetic Acid/*adverse effects
;
Female
;
Human
;
Kanamycin/*pharmacology
;
Middle Age
;
Platelet Aggregation/*drug effects
;
Platelet Aggregation Inhibitors/*therapeutic use
;
Platelet Count
;
Thrombocytopenia/*blood/chemically induced
10.Two Cases of Quadricuspid Aortic Valve Associated with Aortic Regurgitation and Infective Endocarditis.
Won Yu KANG ; Wan KIM ; Young MOON ; Sung Hee JOHN ; Jong Bum CHOI ; Sang Chul JO ; An Doc JUNG ; Young Chan JO ; Sun Ho HWANG ; Weon KIM
Journal of Cardiovascular Ultrasound 2007;15(4):131-135
Quadricuspid aortic valves (QAVs) is a rare congenital malformation. We report two cases of QAV associated with aortic regurgitation. The one is incidentally diagnosed and uncomplicated, and the other is symptomatic and associated with infective endocarditis. In most cases, QAVs are associated with valve regurgitation, with a concurrent stenosis in some patients, while only a small number of QAVs are functionally normal. Once the diagnosis has been made, echocardiographic follow-up is recommended, because of progression to severe valve regurgitation and the risk of infective endocarditis.
Aortic Valve Insufficiency*
;
Aortic Valve*
;
Constriction, Pathologic
;
Diagnosis
;
Echocardiography
;
Endocarditis*
;
Humans