2.An Intradural Extramedullary Hemangioblastoma of Distal Spinal Cord: A Case Report.
Sung Ho PARK ; Joon CHO ; Seung Whan YOUN ; Sang Keun CHANG
Journal of Korean Neurosurgical Society 2000;29(11):1523-1526
No abstract available.
Hemangioblastoma*
;
Spinal Cord*
3.Clinical application of 40Hz event related potential for audiometry.
Seong Heon SHIN ; Sang Heun LEE ; Jin Sin CHOO ; Tae Whan CHO ; Chang Sup SEONG
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(4):690-696
No abstract available.
Audiometry*
4.Aspergillosis of the Thoracic Spine in Chronic Granulomatous Disease: A Case Report.
Jae Chul LEE ; Whan Seong CHO ; Dong Ho LEE ; Chang Kyun LIM ; Bong Soon CHANG ; Choon Ki LEE
The Journal of the Korean Orthopaedic Association 2001;36(4):389-393
Chronic granulomatous disease is characterized by recurrent life-threatening infections and the formation of granulomatous lesions caused by the failure of phagocytic oxidative microcidal activity that has resulted from a defect of the oxidase system. The fungal osteomyelitis of the spine in this disease is almost always caused by Aspergillus, and its treatment is not yet established although surgical management, antifungal agents, granulocyte transfusions or combination methods have been reported. We report a patient with aspergillosis who had a long-standing pulmonary lesion which subsequently spread to the adjacent thoracic wall and spine. After decompression and drainage by costotransversectomy, the severe pain was relieved but the kyphosis increased and a paraplegia developed slowly because of resistance to the antifungal therapy and the inability to perform a bone graft. The patient died 2 months after the operation because of pulmonary complications.
Antifungal Agents
;
Aspergillosis*
;
Aspergillus
;
Decompression
;
Drainage
;
Glucose Oxidase
;
Granulocytes
;
Granulomatous Disease, Chronic*
;
Humans
;
Kyphosis
;
Osteomyelitis
;
Oxidoreductases
;
Paraplegia
;
Spine*
;
Thoracic Wall
;
Transplants
5.Human Muscle Derived Stem Cell Differentiate into Neurons.
Young Yul KIM ; Yun Kyung CHO ; Soon Yong KWON ; Bo Kun GI ; Seok Whan SONG ; Hyung Jun KIM ; Chang Whan HAN ; Gil son KHANG
Journal of Korean Orthopaedic Research Society 2005;8(1):41-49
PURPOSE: To evaluate the possibility that human muscle derived stem cells (hMDSCs) can be differentiated into neurons in vitro. MATERIAL AND METHODS: Muscle derived stem cells were isolated from the hamstring muscles during the anterior cruciate ligament reconstruction by preplate technique. For the characterization of these cells, desmin staining, CD 34, Sca-1, CD 29 using the Flow cytometry were performed. In the experimental group, neuronal induction media was added to differentiate hMDSCs to neuronal cells. These cells were evaluated by neuronal markers such as neuron-specific enolase (NSE), neurofilament (NF), TrkA using immunocytochemistry. For the control group, no induction media was added. Statstical analyses were performed by use of Kruskal-Wallis H test and Student-Newman-Keuls test (P<0.01). RESULT: Desmin staining was positive in 92.3+/-6%. Flow cytometry was negative for CD 34 and Sca-1. However it was positive for CD 29. (69.4+/-10%). The immunocytochemical result revealed NSE, NF and TrkA positive with 63.2+/-2.3%, 59.2+/-2.5%, 55+/-2.4% respectively. However, these were negative in the control group. CONCLUSION: Our observations indicate that hMDSCs have the capacity to differentiate into neurons in a specialized culture media.
Anterior Cruciate Ligament Reconstruction
;
Culture Media
;
Desmin
;
Flow Cytometry
;
Humans*
;
Immunohistochemistry
;
Muscles
;
Neurons*
;
Phosphopyruvate Hydratase
;
Stem Cells*
7.Ataxia-Telangiectasia with Novel Splicing Mutations in the ATM Gene.
Heejeong JEONG ; Hee Jae HUH ; Jinyoung YOUN ; Ji Sun KIM ; Jin Whan CHO ; Chang Seok KI
Annals of Laboratory Medicine 2014;34(1):80-84
No abstract available.
Adolescent
;
Ataxia Telangiectasia/*genetics
;
Ataxia Telangiectasia Mutated Proteins/*genetics
;
Base Sequence
;
Chromosome Inversion
;
Chromosomes, Human, Pair 14/genetics
;
Chromosomes, Human, Pair 7/genetics
;
DNA Mutational Analysis
;
Female
;
Humans
;
Karyotyping
;
Magnetic Resonance Imaging
;
Mutation
;
RNA Splicing
;
Translocation, Genetic
8.Pseudomembranous Colitis Caused by Clostridium Difficile.
Sung Min CHO ; Chang Don LEE ; Wan Kook LEE ; In Sik CHUNG ; Kyung Hee KIM ; Kyu Won CHUNG ; Hee Sik SUN ; Whan Kook CHUNG
Korean Journal of Gastrointestinal Endoscopy 1985;5(1):67-71
Pseudomembranous colitis (PMC) was first described by Finney as postoperative diphtheritic enteritis in 1893 and was known to be associated with antibiotics by Reiner et al in 1952. Most cases of antibiotic-associated PMC are now associated with cytotoxigenic C. difficile. The association of PMC several antibiotics is well docamented; however, its association with clindamycin appeared to be most striking. We experienced a male patient who developed tarry stool, abdominal pain and diarrhea after having recieved clindamycin for two weeks. The PMC diagnosed by colonofiberscopy with biopsy and C. difficile was identified by tissue-culture study. The patient was treated by oral vancomycin and healed. Described here a case of PMC with some review of literature.
Abdominal Pain
;
Anti-Bacterial Agents
;
Biopsy
;
Clindamycin
;
Clostridium difficile*
;
Clostridium*
;
Diarrhea
;
Enteritis
;
Enterocolitis, Pseudomembranous*
;
Humans
;
Male
;
Strikes, Employee
;
Vancomycin
9.The effect of Der p 2 antigen on the production of interferon gamma by CD3+T, CD56+NK and CD3+CD56+TNK cells from patients with mild persistent allergic asthma.
Sun Hee MAENG ; Ji Soo LEE ; Chang Whan PARK ; Young Joo CHO
Journal of Asthma, Allergy and Clinical Immunology 2003;23(2):341-348
BACKGROUND: Asthma is a chronic inflammatory disease of the bronchial mucosa and is associated with excess production of Th2 cytokines (IL-4, IL-5) relative to Th1 cytokine (IFN-V). The NK cell and TNK cell are supposed to be involved in the pathogenesis of allergic inflammation by cytokine regulation. OBJECTIVES: The aim of this study was to investigate the effect of allergen (Der p 2) on the production of IFN-V by CD3+T cell, CD56+NK cell and CD3+CD56+TNK cells in patients with mild persistent asthma. METHOD: Peripheral blood mononuclear cells (PBMCs) from patients with mild persistent asthma (n=12) who were sensitive to dust mite, were cultured with or without Der p 2 for 3 days, and phorbol ester plus calcium ionophore and intracellular protein transport inhibitor were added 4 hours before staining. A three-color flow cytometric analysis was done to detect intracytoplasmic IFN-V, surface DC3 and CD56 antigen simultaneously. RESULTS: When PBMCs were cultured only in media, there were no significant differences in the percentage of IFN-V positive CD3+T cell, CD56+NK cell and CD3+CD56+TNK cells between asthmatic patients and normal subjects. However, there were significant decreases in the percent change of IFN-V positive CD3+T cell, CD56+NK cell and CD3+CD56+TNK cell in asthmatic patients comparde to normal subjects after stimulation of PBMCs with Der p 2. CONCLUSION: This study suggests that NK cell and TNK cell may participate in allergic reaction by IFN-V regulation.
Antigens, CD56
;
Asthma*
;
Calcium
;
Cytokines
;
Dust
;
Humans
;
Hypersensitivity
;
Inflammation
;
Interferons*
;
Killer Cells, Natural
;
Mites
;
Mucous Membrane
;
Protein Transport
10.The sensitization rate to house dust mites and the prevalence of asthma in healthy young women.
Hee Sun KIM ; Chang Whan PARK ; Ji Soo LEE ; Young Joo CHO
Journal of Asthma, Allergy and Clinical Immunology 2004;24(1):103-109
BACKGROUND: During the past few decades, the prevalence of allergic disorders has increased worldwide. We attempted to reveal the sensitization rate of dust mite allergens, which is one of the most important allergens in Korea, and the prevalence of mite-sensitized asthma in healthy young women who had no history of allergic diseases. METHODS: We performed the skin prick test with two mites (Dermatophagoides farinae, Df; Dermatophagoides pteronnyssinus, Dp) in 24-26 years old 172 women who had no history of allergic diseases. We also performed the methacholine bronchial provocation test (MBPT) and the questionnaire survey of positive skin responders. RESULTS: The 55.2% of subjects showed positive skin responses to house dust mites. The positive rate to MBPT was 54.7% with average PC20 of 15.97+/-7.68 mg/ml and 48.4% had asthma symptoms in the questionnaire survey. Among the methacholine positive population, 6.3% had no asthma symptoms. The history of 3-week cough after upper airway infection was most important, but the most specific item was wheezing. CONCLUSION: The prevalence of dust mite-sensitive bronchial asthma in healthy young women is 26.7%, which is higher than that of previous studies.
Allergens
;
Asthma*
;
Bronchial Provocation Tests
;
Cough
;
Dust*
;
Female
;
Humans
;
Korea
;
Methacholine Chloride
;
Mites
;
Prevalence*
;
Pyroglyphidae*
;
Respiratory Sounds
;
Skin
;
Surveys and Questionnaires