1.Expression of Green Fluorescent Protein in Both Spodoptera frugiperda Cells and Bombyx mori Larvae by Ac-Bm Hybrid Virus.
Byung Rae JIN ; Hyung Joo YOON ; Eun Young YUN ; Seok Woo KANG ; Eun Sook CHO ; Seok Kwon KANG
Journal of the Korean Society of Virology 1998;28(3):225-232
We have expressed GFP in Sf9 and Bm5 cells or Bombyx by larvae by using Ac-Bm hybrid virus capable of replicating in both Bm5 and Sf9 cells. Genomic DNA of Ac-Bm hybrid virus expressing P-galactosidase was cotransfected with baculovirus transfer vector containing GFP gene, pBacPAK-GFP in Sf9 cells. The Ac-Bm hybrid virus harboring GFP was named as Ac-Bm hybrid virus-GFP. The Ac-Bm hybrid virus-GFP-infected insect cells were easily selected by detecting the emission of GFP from each well of cell culture dish on the UV illuminator. GFP produced by Ac-Bm hybrid virus-GFP in Sf9 and Bm5 cells or B. mori larvae was confirmed by SDS-PAGE and Western blot analysis using GFP antibody. In addition, B. mori larvae infected with Ac-Bm hybrid virus-GFP was apparently appeared fluorescence from the whole body at 5 days postinoculation. The fluorescence of GFP from the hemolymph and fat body of B. mori larvae infected with Ac-Bm hybrid virus-GFP was also observed by fluorescence microscope. In conclusion, our results demonstrated that in baculovirus expression vector system, use of Ac-Bm hybrid virus have an additional advantage of expanded host range for producing recombinant proteins.
Animals
;
Baculoviridae
;
Blotting, Western
;
Bombyx*
;
Cell Culture Techniques
;
DNA
;
Electrophoresis, Polyacrylamide Gel
;
Fat Body
;
Fluorescence
;
Hemolymph
;
Host Specificity
;
Insects
;
Larva*
;
Recombinant Proteins
;
Sf9 Cells
;
Spodoptera*
2.Comparison of Diagnostic and Therapeutic Efficacy between Ultrasound Guided Hydrostatic Saline Reduction and Fluoroscopic Barium Reduction in Children with Intussusception.
Chi Hyung PARK ; Ho Seok LEE ; Chong Woo BAE ; Sa Jun CHUNG ; Young Mook CHOI ; Sun Wha LEE ; Yup YUN
Journal of the Korean Pediatric Society 1995;38(12):1664-1670
No abstract available.
Barium*
;
Child*
;
Humans
;
Intussusception*
;
Ultrasonography*
3.A Case of Endobronchial Granular Cell Tumor Associated with Malignant Mediastinal Tumor.
Hyung Seok CHOI ; Ku Sub YUN ; Shin Eun CHOI
Tuberculosis and Respiratory Diseases 2000;48(1):96-102
Granular Cell Tumors(GCT) were originally described as myoblastic myomas. Subsequent scientific investigations elucidated the origin of this tumor as Schwann cells . Usually they have a predilection for head and neck, but also can occur in many other organs. This tumor is believed to originate from Schwann cells based on subsequent scientific investigations. Although it usually appears in the head and neck, it can also appear in other organs, as well. Endobronchial granular cell tumors are rather rare and should be differentiated from other common diseases of endobronchial location endobronchial diseases such as bronchogenic carcinoma and endobronchial tuberculosis, especially in Korea . We report a A case of a patient with an extremely rare condition of endobronchial granular cell tumor concurrent with malignant mediastinal tumor in a patient (delete) is reported.
Carcinoma, Bronchogenic
;
Granular Cell Tumor*
;
Head
;
Humans
;
Korea
;
Myoblasts
;
Myoma
;
Neck
;
Schwann Cells
;
Tuberculosis
4.Five Year Results of Hydroxyapatite Coated Hip System: Early Severe Wear and Acetabular Osteolysis.
Hyung Taek PARK ; Yun Seok KIM ; Young Ryool CHUNG ; Kuen Tak SUH
The Journal of the Korean Orthopaedic Association 2003;38(5):472-477
PURPOSE: To assess the midterm results of the hydroxyapatite hip system with acetabular cups, with particular emphasis upon cup wear and loosening, using a computer assisted-3 dimensional technique. MATERIALS AND METHODS: From March 1992 to December 1996, 52 patients (61 hips) were available for inclusion in this study after an average duration of follow up of 6 years and 4 months. Clinical evaluation was performed using the Harris hip scoring system. Initial postoperative and long term follow up films were digitized, and 2 dimensional linear and 3 dimensional wear was measured by using a computer assisted-3 dimensional technique. Acetabular bone changes are described using previous published methods. RESULTS: An analysis of the clinical results showed a mean Harris hip score of 47.2 points preoperatively and 89.8 points at the final visit. The mean polyethylene 3D-linear wear rate was 0.26 mm/year and mean volumetric wear rate was 105.9 mm3/year. In 16 hips (26.2%) the linear wear rate was more than 0.3 mm/year (0.30-0.74 mm/year). Osteolytic changes of the acetabulum were recorded in 51% around acetabular cups, in which considerable wear of the acetabular polyethylene was evident by the five-year radiographic findings. CONCLUSION: Midterm results of hydroxyapatite coated acetabular cups were disappointing in terms of acetabular cup and liner wear, despite early accelerated bone remodeling by hydroxyapatite and excellent early clinical results.
Acetabulum*
;
Arthroplasty, Replacement, Hip
;
Bone Remodeling
;
Durapatite*
;
Follow-Up Studies
;
Hip*
;
Humans
;
Osteolysis*
;
Polyethylene
5.A Case of Renal Cell Carcinoma Presented with Chest Wall Metastasis.
Chan Ho SONG ; Hyung Seok CHOI ; Dong Hyuk SHEEN ; Sang Seok YANG ; Jee Youn LEE ; Yoon Ju HAN ; Ku Sub YUN ; Ki Chool KIM ; Shin Eun CHOI
Tuberculosis and Respiratory Diseases 2000;48(1):84-90
The appearance of a tumor in the chest wall is rare compared to that in any other part of the body. It can be classified into benign and malignant types and can be located in the rib, clavicle, sternum, cartilage and soft tissues. Tumors that are metastatic are commonly located in the lung, breast, bone and pleura. But, the soft tissue mass of anterior chest wall is rarely metastasized from a distant organ that is not confined to the thoracic cavity. This and thus has rarely been described. A 68-year-old man was admitted to our hospital with a chief complaint of resting dyspnea. A huge non-tender mass of about 10*15 cm in size was visible on his left lower anterior chest wall. We pathologically confirmed that the mass was a metastatic renal cell carcinoma of clear cell type by incision biopsy. Through an incision biopsy, the mass was pathologically confirmed as a metastatic renal cell carcinoma of the clear cell type.
Aged
;
Biopsy
;
Breast
;
Carcinoma, Renal Cell*
;
Cartilage
;
Clavicle
;
Dyspnea
;
Humans
;
Lung
;
Neoplasm Metastasis*
;
Pleura
;
Ribs
;
Sternum
;
Thoracic Cavity
;
Thoracic Wall*
;
Thorax*
6.Ultrasonography of Median Nerve and Electrophysiologic Severity in Carpal Tunnel Syndrome.
Seok KANG ; Hee Kyu KWON ; Ki Hoon KIM ; Hyung Seok YUN
Annals of Rehabilitation Medicine 2012;36(1):72-79
OBJECTIVE: To investigate the correlation of the ultrasonographic wrist-to-forearm median nerve area ratio (WFR) and cross sectional area of median nerve at the wrist (CSA-W) to the electrophysiologic severity in patients with carpal tunnel syndrome (CTS). METHOD: One hundred and ten wrists electrophysiologically graded as mild, moderate, and severe CTS and 38 healthy controls underwent ultrasonography of median nerve at the distal wrist crease and mid-forearm. WFR and CSA-W were analyzed according to the severity of CTS. RESULTS: WFR was 1.12+/-0.14, 1.91+/-0.33, 2.27+/-0.47 and 3.02+/-0.97 and the CSAs-W was 7.23+/-1.67 mm2, 13.51+/-3.72 mm2, 14.67+/-2.93 mm2, and 18.74+/-6.01 mm2 in controls, mild (n=28), moderate (n=46), and severe (n=36) CTS, respectively. CSA-W displayed significant differences between the control and the mild CTS, moderate CTS and severe CTS groups. However, there was no significant difference between mild CTS and moderate CTS groups. WFR revealed significant difference between all groups. The sensitivity and specificity of the WFR in grading the severity of CTS were higher than those of the CSA-W. CONCLUSION: Ultrasonography is a useful complementary tool for the evaluation of CTS. Both WFR and CSA-W are highly correlated with severity grade of CTS. However, WFR is superior to CSA-W for diagnosis and grading of the severity of CTS.
Carpal Tunnel Syndrome
;
Humans
;
Median Nerve
;
Sensitivity and Specificity
;
Wrist
7.Proteomic Analysis of a Rat Cerebral Ischemic Injury Model after Human Cerebral Endothelial Cell Transplantation.
Tae Min CHOI ; Misun YUN ; Jung Kil LEE ; Jong Tae PARK ; Man Seok PARK ; Hyung Seok KIM
Journal of Korean Neurosurgical Society 2016;59(6):544-550
OBJECTIVE: Cerebral endothelial cells have unique biological features and are fascinating candidate cells for stroke therapy. METHODS: In order to understand the molecular mechanisms of human cerebral endothelial cell (hCMEC/D3) transplantation in a rat stroke model, we performed proteomic analysis using 2-dimensional electrophoresis and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Protein expression was confirmed by quantitative real-time PCR and Western blot. RESULTS: Several protein spots were identified by gel electrophoresis in the sham, cerebral ischemia (CI), and CI with hCMEC/D3 treatment cerebral ischemia with cell transplantation (CT) groups, and we identified 14 differentially expressed proteins in the CT group. Proteins involved in mitochondrial dysfunction (paraplegin matrix AAA peptidase subunit, SPG7), neuroinflammation (peroxiredoxin 6, PRDX6), and neuronal death (zinc finger protein 90, ZFP90) were markedly reduced in the CT group compared with the CI group. The expression of chloride intracellular channel 4 proteins involved in post-ischemic vasculogenesis was significantly decreased in the CI group but comparable to sham in the CT group. CONCLUSION: These results contribute to our understanding of the early phase processes that follow cerebral endothelial cell treatment in CI. Moreover, some of the identified proteins may present promising new targets for stroke therapy.
Animals
;
Blotting, Western
;
Brain
;
Brain Ischemia
;
Cell Transplantation
;
Cell- and Tissue-Based Therapy
;
Electrophoresis
;
Endothelial Cells*
;
Fingers
;
Humans*
;
Ischemia
;
Mass Spectrometry
;
Neurons
;
Proteomics
;
Rats*
;
Real-Time Polymerase Chain Reaction
;
Stroke
;
Transplants
8.Outcomes in the Management of Spontaneous Cerebellar Hemorrhage.
Kang Seok MOON ; Hyung Ki PARK ; Seok Mann YOON ; Hack Gun BAE ; Il Gyu YUN ; Soon Kwan CHOI
Journal of Korean Neurosurgical Society 2006;40(4):234-238
OBJECTIVE: The operative indications on cerebellar hemorrhage have been controversial especially when the patient condition is grave. Therefore we investigated whether it can be justifiable if we perform the surgery in poor clinical grade. METHODS: Clinical records and computerized tomography(CT) films of the 89 patients, who were undergone hospital treatment due to spontaneous cerebellar hemorrhage between May 1997 and May 2004, were retrospectively researched. RESULTS: The study population consisted of 36 males and 53 female patients. The mean age was 65years (range 23~89). As a result of treatment, the patients, whose Glasgow coma scale(GCS) score were higher, showed better outcomes (p=0.001). 13 patients (14.6%) were below 5 in GCS score and 10 patients of these were operated. Among 10 patients, 4 patients (40%) showed good outcome and 5 patients (50%) had been dead. 3 patients (60%) of these dead patients had the findings of intraventricular hemorrhage, fourth ventricular obliteration and hydrocephalus in CT scan. CONCLUSION: This study suggests that operation may be justifiable in clinically poor grade patient with spontaneous intra cerebellar hemorrhage.
Coma
;
Female
;
Glasgow Coma Scale
;
Glasgow Outcome Scale
;
Hemorrhage*
;
Humans
;
Hydrocephalus
;
Male
;
Retrospective Studies
;
Tomography, X-Ray Computed
9.Heterotopic Ossification of Distal Tibiofibular Syndesmosis after Ankle Fractures.
Hyung Jin CHUNG ; Yun Seok CHOI ; Jung Yun CHOI
Journal of Korean Foot and Ankle Society 2006;10(1):88-91
PURPOSE: To evaluate the effect on clinical course of heterotopic ossification of distal tibiofibular syndesmosis after ankle fractures. MATERIALS AND METHODS: From June 2001 to May 2004, we found nine cases of heterotopic ossification of distal tibiofibular syndesmosis after ankle fractures. There were 8 male patients and 1 female patient; their mean age was 42 years old. There were 6 Weber type B and 2 Weber type C fractures, and there is 1 case with posterior malleolus fracture only. Among them, 8 ankle fractures were operated. Follow up period was averaged for 14 months. We were able to review radiographs at initial injury and to review clinical menifestation and radiographs at last follow up. We used an ankle-hindfoot scoring system of AOFAS which combined symptom, function and alignment with maximum score of 100 point. RESULTS: In all cases ankle dorsiflexion and plantarflexion were not significantly different from that of the contralateral side. The patients who had developed heterotopic ossification in distal tibiofibular syndesmosis had a similar functional score. The mean ankle-hind foot score was 94 points. CONCLUSION: We concluded that the heterotopic ossification of distal tibiafibular syndesmosis after ankle fractures had little effect on clinical course and range of motion of ankle joint.
Adult
;
Ankle Fractures*
;
Ankle Joint*
;
Ankle*
;
Female
;
Follow-Up Studies
;
Foot
;
Humans
;
Male
;
Ossification, Heterotopic*
;
Range of Motion, Articular
10.A Study about IgG Subclasses Concentration of Chronic Cough Patient and Changes of Immunoglobulin Levels after RU 41.740 Administration.
Yun Su CHOI ; Yang Won KIM ; Seok Jung YUN ; Hyung Ku CHO ; Kee Hyuck KIM
Journal of the Korean Pediatric Society 1996;39(10):1385-1394
PURPOSE: People who suffer from chronic or recurrent respiratory disease have immunoglobulin deficiency due to hypofunction of B cell. Among these immunoglobulin deficiency, it has been reported that only one or two subclass of IgG are deficient with normal quantity of IgG and IgA. Therefore it is necessary to measure IgG subclasses in chronic or recurrent respiratory infection for diagnosis. The purpose of this study is to measure IgG subclass in children with chronic respiratory disease and administration of RU 41.740 which was obtained from Klebsiella pneumonia, K2O strain(it has proven role in control of immunity) comparing the changes of immunoglobulin levels and IgG subclasses with the control group. So that better therapeutic approaches can be made for these diseases. Subjectsand METHODS: Thirty-six patients who visited to Konkuk university hospital due to chronic and recurrent coughing from January 1993 to June 1994, were selected for this research. Their age ranged from 2~13 year old and patients with evident history of allergy or tuberculosis were excluded. RU 41.740 with antibiotics were given to 31 subjects and 5 subjects were given placebo with antibiotics. For all subjects IgG, A, M, E, IgG1, G2, G3, G4 were measured. Immunoglobulins were remeasured from 15 subjects who received RU 41.740 and from 5 subjects who received placebo. Results : 1) Five subjects out of 36 were low or low-normal IgG group and all combined with IgG subclass deficiency, and all of low or low-normal IgG group had IgG3 deficiency. Eighteen subjects out of 31 normal IgG group accompanied IgG subclass deficiency and 12 subjects had IgG3 deficiency, which is most common IgG subclass deficiency. 2) Four subjects out of 36 were IgA deficiency group. Three subjects from 4 accompanied IgG subclass deficiency and had IgG4 subclass eficiency. 3) After the RU 41.740 administration, the levels of IgG and IgG subclasses increased significantly in study group. There were no significant change in IgG and IgG subclasses levels in placebo group CONCLUSIONS: In patients with chronic or recurrent respiratory disease, it is necessary to measure IgG subclass. These diseases tend to be chronic and recurrent and can be severely complicated causing bronchiectasis and incurable otitis media. Generally these diseases are not responsive to antibiotics. Therefore therapies should be directed to increasing immunological function for better results.
Anti-Bacterial Agents
;
Bronchiectasis
;
Child
;
Cough*
;
Diagnosis
;
Humans
;
Hypersensitivity
;
IgA Deficiency
;
Immunoglobulin A
;
Immunoglobulin G*
;
Immunoglobulins*
;
Klebsiella
;
Otitis Media
;
Pneumonia
;
Tuberculosis