1.Histologic change of the posterior attachment in anterior disc displacement of the temporomandibular joint - a new model of internal derangement in rabbits.
Tae Woo KIM ; Jea Seung KO ; Young Il CHANG
Korean Journal of Orthodontics 1993;23(4):503-527
This paper describes a new method to create an animal model for TMJ internal derangement in the New Zealand white rabbits and the light and electron microscopical changes of posterior attachment of them. Twenty six rabbits(2.5-3.0kg), four normal and twenty two experimental, were used. The right disc of experimental animal was displaced anteriorly without sectioning the posterior attachment and tied to the zygomatic arch with nylon not to be reduced to the original position. The left TMJ was sham-operated to be compared with its right experimental one. Normal animals were sacrificed one day and eight weeks after experiment. Experimental animals were sacrificed one day, ten days, three weeks, five weeks and eight weeks after surgery respectively. They were fixed intravenously with 2% glutaldehyde under general anesthesia and the samples of them were processed for light and electron microscopic examination. The purpose of this experiment is to make a suitable animal model of disc displacement without reduction for studying and understanding the cellular and morphologic events in posterior attachment of TMJ including early changes which were difficult to be observed in human TMJs. The results of this investigation suggest the following conclusions: 1. Authors induced anterior disc displacement surgically in rabbits with new method to examine histologic changes of posterior attachment. Tissue reactions of this model seem to be similar to those observed in human disc displacement. We think this animal model for anterior disc displacement may be used to explore and evaluate objectively the effects of many treatment modalities in disc displacements. 2. The animal disease model showed inflammation at early stage(one and ten days). At this stage there were mild-to-severe mononuclear inflammatory cell infiltration, numerous newly formed vessels, vessel dilatation and engormement and many fibroblasts. 3. At middle stage(three weeks), fibrosis occurred, where fibroblasts decreased in number, but their cytoplasm was profuse indicating high activity. Collagen fibers increased in number and the tissue looked more dense. 4. At late stage(five weeks and eight weeks) showed degenerative changes including perforation of posterior attachment, disintegration of collagen fiber bundles, degeneration of fibroblasts, metastatic ossification, and dystrophic calcification.
Anesthesia, General
;
Animals
;
Collagen
;
Cytoplasm
;
Dilatation
;
Disease Models, Animal
;
Fibroblasts
;
Fibrosis
;
Humans
;
Inflammation
;
Models, Animal
;
Nylons
;
Rabbits*
;
Temporomandibular Joint*
;
Zygoma
2.Epidemiological Analysis of Influenza by Laboratory Surveillance in Incheon, 2003/2004~2004/2005.
Mi Yeon LEE ; Young Woo GONG ; Bo Yong OH ; Seung Hye JUNG ; Hye Young KIM ; Jea Mann LEE
Korean Journal of Clinical Microbiology 2005;8(2):165-171
BACKGROUND: Influenza is a highly contagious respiratory disease. Influenza virus, which causes epidemics every winter season, has the high possibility of appearing with new virus types every year due to antigen variation. Therefore, we intended to analyze the data on the epidemiology of influenza that had been acquired by laboratory surveillance in Incheon during the 2003/2004 and 2004/ 2005 seasons and to apply the knowledge to the control and prevention of influenza in Korea. METHODS: Specimens were inoculated into Madin-Darby canine kidney (MDCK) cells and, when cytopathic effect (CPE) was seen, culture supernatants were tested by mutiplex RT-PCR for typing and subtyping of influenza viruses. RESULTS: The first virus of the season was isolated at week 47 (3rd week on November) in 2003 during 2003/2004 and at week 43 (4th week on October) in 2004 during 2004/2005, which was about 4 weeks earlier than in the 2003/2004 season. From 532 specimens cultured for influenza virus during the 2003/2004 season. 330 (62.0%) viruses were isolated: 161 (48.8%) A/H3N2, 1 (0.3%) A/H1N1, and 168 (50.9%) B. During 2004/2005 season, 457 specimens were tested and 278 (60.8 %) were positive for influenza virus: 232 (83.5%) A/H3N2, 5 (1.8%) A/H1N1, and 38 (13.7%) B. The incidence of influenza was the highest in the school-age children and young adults of 7 to 19 years age group in both seasons. CONCLUSION: Influenza virus was isolated at a high rate (more than 60%) by the laboratory influenza surveillance system in Incheon during the 2003/2004 and 2004/2005 seasons: the predominant strain was influenza A/H3N2 subtype.
Antigenic Variation
;
Child
;
Epidemiology
;
Humans
;
Incheon*
;
Incidence
;
Influenza, Human*
;
Kidney
;
Korea
;
Orthomyxoviridae
;
Seasons
;
Young Adult
3.Allergic Bronchopulmonary Aspergillosis Associated with Aspergilloma.
Jeon Su RYU ; Jae Joong BAIK ; Do Kyun KIM ; Young Jin KIM ; Woo Seob EOM ; Jea Hyun CHO
Tuberculosis and Respiratory Diseases 2004;56(3):302-307
Aspergilloma and Allergic Bronchopulmonary Aspergillosis(ABPA) are different types of the pulmonary aspergillosis spectrum of diseases. ABPA is an inflammatory disease that causes hypersensitivity to Aspergillus spores growing in the bronchi, which is characterized by asthma, recurrent pulmonary infiltrations or mucoid impaction, eosinophilia and central bronchiectasis. Aspergilloma is a simple colonization of fungus within a cavitary lung lesion, but these diseases rarely coexist. A case of ABPA, coexistent with Aspergilloma, was experienced in a 31 year-old female. The diagnosis was confirmed by the immediate cutaneous reactivity to Aspergillus fumigatus, elevated total IgE antibodies, peripheral eosinophilia, bronchiectasis, growth of Aspergillus species in a sputum culture and radiographic infiltration. Treatment, with prednisone and itraconazole, led to improvement of the respiratory symptoms, reduction of the cavitary lesion and in the total serum IgE level.
Adult
;
Antibodies
;
Aspergillosis, Allergic Bronchopulmonary*
;
Aspergillus
;
Aspergillus fumigatus
;
Asthma
;
Bronchi
;
Bronchiectasis
;
Colon
;
Diagnosis
;
Eosinophilia
;
Female
;
Fungi
;
Humans
;
Hypersensitivity
;
Immunoglobulin E
;
Itraconazole
;
Lung
;
Prednisone
;
Pulmonary Aspergillosis
;
Spores
;
Sputum
4.Current status of education for disaster medicine in Korean medical schools
Jong-Young PARK ; Jae-Hyug WOO ; Jea Yeon CHOI ; Jin Seong CHO ; Yong Su LIM ; Sung Youl HYUN
Journal of the Korean Society of Emergency Medicine 2020;31(5):504-510
Objective:
Doctors or public health doctors at the nearest institution to a disaster scene often have to treat the casualties at the scene. Therefore, disaster medical education is necessary for medical students and doctors, but such education is not properly implemented. This study investigated the status of disaster medical education in Korean medical schools and the professors' thoughts on the appropriateness and necessity of disaster medical education.
Methods:
A survey was conducted on working-level professors in charge of student education in emergency medicine in 40 medical schools. The survey asked the professors the current status of disaster medical education at each school and the professors' thoughts on the appropriateness and necessity of disaster medical education.
Results:
Thirty-seven professors (92.5%) responded to the survey. Twenty-seven schools (73.0%) had a regular curriculum of disaster medicine. Disaster drills were conducted at 34 training hospitals (91.9%), while students of 10 schools (29.4%) were officially participating in the drill. Of the responders, 31 (83.8%) responded that disaster medicine is necessary for clinicians. Thirty-seven professors (100%) thought disaster medical education was necessary for medical students, and 20 (54.1%) of them responded that their schools did not provide adequate disaster medical education.
Conclusion
Many schools did not have a proper course on disaster medical education. Disaster medical education is necessary for medical students, but such education is not properly implemented.
5.Current status of education for disaster medicine in Korean medical schools
Jong-Young PARK ; Jae-Hyug WOO ; Jea Yeon CHOI ; Jin Seong CHO ; Yong Su LIM ; Sung Youl HYUN
Journal of the Korean Society of Emergency Medicine 2020;31(5):504-510
Objective:
Doctors or public health doctors at the nearest institution to a disaster scene often have to treat the casualties at the scene. Therefore, disaster medical education is necessary for medical students and doctors, but such education is not properly implemented. This study investigated the status of disaster medical education in Korean medical schools and the professors' thoughts on the appropriateness and necessity of disaster medical education.
Methods:
A survey was conducted on working-level professors in charge of student education in emergency medicine in 40 medical schools. The survey asked the professors the current status of disaster medical education at each school and the professors' thoughts on the appropriateness and necessity of disaster medical education.
Results:
Thirty-seven professors (92.5%) responded to the survey. Twenty-seven schools (73.0%) had a regular curriculum of disaster medicine. Disaster drills were conducted at 34 training hospitals (91.9%), while students of 10 schools (29.4%) were officially participating in the drill. Of the responders, 31 (83.8%) responded that disaster medicine is necessary for clinicians. Thirty-seven professors (100%) thought disaster medical education was necessary for medical students, and 20 (54.1%) of them responded that their schools did not provide adequate disaster medical education.
Conclusion
Many schools did not have a proper course on disaster medical education. Disaster medical education is necessary for medical students, but such education is not properly implemented.
6.'Pauci-immune' rapidly progressive glomerulonephritis associated with systemic vasculitis.
Ji Youn HAN ; Sun Ae YOON ; Jea Young WOO ; In Seok PARK ; Suk Young KIM ; Yoon Sik CHANG ; Byung Kee BANG
Journal of Korean Medical Science 1992;7(3):264-270
'Pauci-immune' glomerulonephritis has been recognized as an important cause of rapidly progressive glomerulonephritis. The paucity of immune deposits can be separated from the other two major immunohistologic variants of crescentic glomerulonephritis, ie, antiglomerular basement membrane (GBM) antibody-mediated and immune complex-mediated glomerulonephritis. Here we describe the case of a 42-year-old woman with pauci-immune' glomerulonephritis and vasculitis presenting as rapidly progressive renal failure with characteristic pathologic and immunohistologic findings. And in this case, despite oliguria and rapid deterioration of renal function, the renal function recovered partially and continued to be stabilized with a favourable response to hemodialysis and combined system immunosuppressive therapy.
Adult
;
Antibodies, Antineutrophil Cytoplasmic
;
Autoantibodies/analysis
;
Cyclophosphamide/therapeutic use
;
Drug Therapy, Combination
;
Female
;
Glomerulonephritis/*complications/immunology/pathology/therapy
;
Humans
;
Kidney/ultrastructure
;
Prednisolone/therapeutic use
;
Renal Dialysis
;
Vasculitis/*complications
7.Identification of Helicobacter pylori Strain 51 Major Outer Membrane Proteins by Quadrupole Time of Flight Mass Spectrometry.
Kyung Mi KIM ; Seung Gyu LEE ; Young A CHO ; Yun Gyu SONG ; Jea Young SONG ; Hyung Lyun KANG ; Woo Kon LEE ; Myung Je CHO ; Kwang Ho RHEE ; Seung Chul BAIK
Journal of Bacteriology and Virology 2010;40(3):103-109
As part of an initial inquiry into the function of the outer membrane proteins (OMPs) of Helicobacter pylori Korean strain 51, we have conducted an extensive proteome analysis via quadrupole time of flight (Q-TOF) mass spectrometry (MS). Fifty one OMPs of H. pylori were purified using sarcosine and resolved via two-dimensional electrophoresis with immobilized pH gradient strips. The most abundant proteins were observed in the alkaline pI regions (6.0~11.0) at molecular masses between 10~100 KDa. Here, 15 spots were identified, representing 9 types of genes (KHP0852, KHP0853, KHP1353, KHP1017, KHP0172, KHP0076, KHP0617, KHP1069, KHP0614) from the sarcosin-insoluble fraction of H. pylori 51. These may be employed in the characterization of the OMPs of H. pylori 51, which will help to identify new potential target proteins for vaccine development and drug therapy.
Electrophoresis
;
Helicobacter
;
Helicobacter pylori
;
Mass Spectrometry
;
Membrane Proteins
;
Membranes
;
Proteins
;
Proteome
;
Proton-Motive Force
;
Sarcosine
;
Sprains and Strains
8.Broken Guidewire Fragment in the Radio-brachial Artery During Transradial Sheath Placement: Percutaneous Retrieval via Femoral Approach.
Jang Young KIM ; Junghan YOON ; Hyun Sook JUNG ; Woo Jea KIM ; Byung Su YOO ; Seung Hwan LEE ; Kyung Hoon CHOI
Yonsei Medical Journal 2005;46(1):166-168
A case in which a 0.014" wire was broken during the sheath placement in the radial artery for transradial coronary procedure is described here, and a successful retrieval of it using conventional methods is also described. Through the left femoral artery, the 6 Fr guiding catheter was advanced down to the tip of the broken wire at the brachial artery, and the distal part of the broken guidewire was captivated into the guiding catheter. By inflating the balloon catheter inside of the guiding catheter, seized broken guidewire between the inflated balloon and the guiding catheter was removed successfully by withdrawing the whole system en bloc.
Aged
;
Angioplasty, Transluminal, Percutaneous Coronary/*adverse
;
effects/instrumentation/*methods
;
Brachial Artery
;
Coronary Arteriosclerosis/diagnosis
;
Equipment Failure
;
Female
;
Femoral Artery
;
Foreign Bodies/*etiology/*therapy
;
Humans
;
Radial Artery
9.Lower respiratory tract infection of positive antigen test for respiratory syncytial virus on children under 2 years of age.
Jea Heon JEONG ; Kyoung Hee MOON ; Chang Woo LEE ; Du Young CHOI ; Yeun Geun OH ; Hyang Suk YOON ; Ji Hyun CHO ; Jong Duck KIM
Korean Journal of Pediatrics 2006;49(4):394-400
PURPOSE: This study was design and performed for evaluations of resent clinical pattern of bronchiolitis caused by RSV infection with children under 2 year of age for 5 years, who were admitted to pediatric ward. METHODS: The inclusion criteria of the patients were children under 24 month-of-age, clinical manifestations of lower respiratory tract infection, and RSV antigen that was detected by a direct immunofluorescence test from the nasal secretions. The additional laboratory and simple chest X-ray findings were reviewed from the medical records of children who were admitted Wonkwang university hospital from Jan. 1999 to Dec. 2003. RESULTS: In the 5 year study duration, 127 patients were enrolled and outbreak of RSV bronchiolitis took place in 2001. The 80 cases(63 percent) of RSV infection were concentrated in later autumn and winter. Number of the cases show coughing were 120(94.5 percent), but rale was audible in 78 cases(61.4 percent). Dyspnea, wheezing, and intercostal retraction were noticed in 27(21.3 percent), 21(16.5 percent), and 4(3 percent) cases respectively. The most common chest X-ray finding was hyperinflation of the lung that was noticed in 110 cases(86.6 percent). Care with mechanical ventilator for more than 2 days required in 5 cases. CONCLUSION: Lower respiratory tract infection by RSV was common in late autumn and winter season but year-round infection was noticed. The severity of RSV respiratory tract infectiontakes in some degree a grave course. So we suggest that population-based surveillance of acute respiratory infection due to RSV is necessary for assessment of prevalence and epidemiology of this disease.
Bronchiolitis
;
Child*
;
Cough
;
Dyspnea
;
Epidemiology
;
Fluorescent Antibody Technique, Direct
;
Humans
;
Lung
;
Medical Records
;
Prevalence
;
Respiratory Sounds
;
Respiratory Syncytial Viruses*
;
Respiratory System*
;
Respiratory Tract Infections*
;
Seasons
;
Thorax
;
Ventilators, Mechanical
10.A Pediatric Case of Autoimmune Hemolytic Anemia followed by Excessive Thrombocytosis and Leukocytosis.
Seo Jin JEA ; Soo Young KIM ; Byung Min CHOI ; Jung Hwa LEE ; Kwang Chul LEE ; Chan Wook WOO
Korean Journal of Hematology 2007;42(3):288-291
Autoimmune hemolytic anemia (AIHA) is characterized by the production of antibodies directed against red blood cells (RBCs). It is usually accompanied by normal white blood cell (WBC) and platelet counts. Severe leukocytosis and thrombocytosis in AIHA are rare. Here, we report a 3-year-old female child who showed AIHA by warm antibody testing with both leukocytosis and thrombocytosis. The patient was treated with oral steroids for 5 days. During treatment, the leukocytosis was noted on hospital day 3 and was up to 60.87 x 10(9)/L. In addition, the thrombocytosis persisted at up to 725 x 10(9)/L. After day 7, the WBC and platelet counts returned to the normal range. The clinical condition and vital signs improved. The patient was discharged on day 12. This case demonstrated that patients with primary AIHA, may also have leukocytosis and thrombocytosis.
Anemia, Hemolytic, Autoimmune*
;
Antibodies
;
Child
;
Child, Preschool
;
Erythrocytes
;
Female
;
Humans
;
Leukocytes
;
Leukocytosis*
;
Platelet Count
;
Reference Values
;
Steroids
;
Thrombocytosis*
;
Vital Signs