1.Mechanical Thrombolysis Using Coil in Acute Occlusion of Fenestrate M1 Segment.
Byung Sun SEO ; Yoon Soo LEE ; Jeong Ho LEE ; Hyuk Gee LEE ; Kee Young RYU ; Dong Gee KANG
Journal of Cerebrovascular and Endovascular Neurosurgery 2012;14(2):108-112
A fenestrated middle cerebral artery (MCA) is a rare congenital anomaly, and is related to interference in the normal embryonic development of the MCA. Fenestrated MCA has been regarded to have no clinical significance other than a rare event of hemorrhage from associated aneurysm. However, the fenestration within the arterial trunk can be an obstacle against thrombus migration and may be associated with a major cerebral infarction. Moreover, the presence of this anomaly can be hardly detected prior to thrombolytic procedures, and emergent treatments are proceeded without any information of anatomical configurations. Therefore, the recanalization procedures would carry a high risk of intraprocedural complications. We report a rare case of MCA territory infarction from occlusion of fenestrated M1 segment, and also introduce a safe method of mechanical thrombolysis using coil.
Aneurysm
;
Cerebral Infarction
;
Embryonic Development
;
Female
;
Hemorrhage
;
Infarction
;
Mechanical Thrombolysis
;
Middle Cerebral Artery
;
Pregnancy
;
Thrombosis
2.Application of aptamers for assessment of vaccine efficacy.
Soo Young YOON ; Grace GEE ; Kee Jong HONG ; Sang Hwan SEO
Clinical and Experimental Vaccine Research 2017;6(2):160-163
Assessing antigen concentration of vaccine is essential step in determining the quality of the vaccine prior to vaccination. After vaccination, vaccine-induced antibody titer should also be measured to verify the vaccine efficacy. Since conventional assay used for vaccine concentrations and induced Ab-titers is antibody-based enzyme-linked immunosorbent assay, the assay inevitably brings drawbacks of antibody such as high cost for production, limited stability, and inconsistent quality between lot-to-lots. Aptamer is single-stranded nucleic acid having three-dimensional structure and has features overcoming limitations of antibody. This review will briefly introduce the features of aptamer and potential of aptamer-based system for evaluation of vaccine efficacy.
Antibodies
;
Enzyme-Linked Immunosorbent Assay
;
Vaccination
;
Vaccines
3.Reproducibility of Gated Myocardial Perfusion SPECT for the Assessment of Myocardial Function : Comparison with Thallium-201 and Technetium-99m-MIBI.
In Young HYUN ; Jung Gee SEO ; Eui Soo HONG ; Dae Hyuck KIM ; Sung Eun KIM ; Jun GWON ; Geum Soo PARK ; Won Sik CHOI ; Woo Hyung LEE
Korean Journal of Nuclear Medicine 2000;34(5):381-392
PURPOSE: We compared the reproducibility of 201Tl and 99mTc-sestamibi (MIBI) gated SPECT measurement of myocardial function using the Germano algorithm. MATERIALS AND METHODS: Gated SPECT acquisition was repeated in the same position in 30 patients who received 201Tl and in 26 who received 99mTc-MIBI. The quantification of end-diastolic volume (EDV), end-systolic volume (ESV), and ejection fraction (EF) on 201Tl and 99mTc-MIBI gated SPECT was processed independently using Cedars quantitative gated SPECT software. The reproducibility of the assessment of myocardial function on 201Tl gated SPECT was compared with that of 99mTc-MIBI gated SPECT. RESULTS: Correlation between the two measurements for volumes and EF was excellent by the repeated gated SPECT studies of 201Tl (r=0.928 to 0.986; p<0.05) and 99mTc-MIBI (r=0.979 to 0.997; p<0.05). However, Bland Altman analysis revealed the 95% limits of agreement (2 SD) for volumes and EF were tighter by repeated 99mTc-MIBI gated SPECT (EDV: 14.1 ml, ESV: 9.4 ml and EF: 5.5%) than by repeated 201Tl gated SPECT (EDV: 24.1 ml, ESV: 18.6 ml and EF: 10.3%). The root mean square (RMS) values of the coefficient of variation (CV) for volumes and EFs were smaller by repeated 99mTc-MIBI gated SPECT (EDV: 2.1 ml, ESV: 2.7 ml and EF: 2.3%) than by repeated 201Tl gated SPECT (EDV: 3.2 ml, ESV: 3.5 ml and EF: 5.2%). CONCLUSION: 99mTc-MIBI provides more reproducible volumes and EF than 201Tl on repeated acquisition gated SPECT. 99mTc-MIBI gated SPECT is the preferable method for the clinical monitoring of myocardial function.
Humans
;
Perfusion*
;
Technetium Tc 99m Sestamibi
;
Tomography, Emission-Computed, Single-Photon*
4.A Case Report of Golf-Swing-Induced T2∼T3 Clay-Shoveler’s Fractures
Jae Sam SEO ; Young Sook PARK ; Hyun Jung CHANG ; Jin Gee PARK ; Eun Sol CHO ; Kyo Hoon KU
Clinical Pain 2020;19(2):138-141
Clay-shoveler’s fractures are rare stress-type avulsion fractures of the spinous processes especially in sports. There have been two case reports that discussed clay-shoveler’s fractures in golf. A 36-year-old beginner golfer presented with a pain in the back after practicing golf swing. No fractures were detected using cervical radiography; however, computed tomography (CT) and magnetic resonance imaging (MRI) revealed T2∼T3 spinous process fractures. The patient was treated conservatively and his pain subsided. The mechanism of injury is speculated to that of clay-shoveler’s fractures. Therefore, if a golfer suffers persistent pain in the cervicothoracic region, clay-shoveler’s fracture is one possibility to consider.
5.A Case Report of Golf-Swing-Induced T2∼T3 Clay-Shoveler’s Fractures
Jae Sam SEO ; Young Sook PARK ; Hyun Jung CHANG ; Jin Gee PARK ; Eun Sol CHO ; Kyo Hoon KU
Clinical Pain 2020;19(2):138-141
Clay-shoveler’s fractures are rare stress-type avulsion fractures of the spinous processes especially in sports. There have been two case reports that discussed clay-shoveler’s fractures in golf. A 36-year-old beginner golfer presented with a pain in the back after practicing golf swing. No fractures were detected using cervical radiography; however, computed tomography (CT) and magnetic resonance imaging (MRI) revealed T2∼T3 spinous process fractures. The patient was treated conservatively and his pain subsided. The mechanism of injury is speculated to that of clay-shoveler’s fractures. Therefore, if a golfer suffers persistent pain in the cervicothoracic region, clay-shoveler’s fracture is one possibility to consider.
6.Induction of Humoral Immue Response in Mice by Wild and Mutant Type HBV Core DNA Vaccination.
Soo Jung YOON ; Young Sun LEE ; Taek Gyu GWON ; Joon Ho BAE ; Min Ae JANG ; Yoon Jung CHOI ; Young Ho KIM ; Min Ho SEO ; Sung Il SEO ; Won Gee BAEK ; Byung Gil CHOI ; Jong Wook PARK
Korean Journal of Immunology 2000;22(3):149-156
No abstract available.
Animals
;
DNA*
;
Mice*
;
Vaccination*
7.Comparison of Single vs Combined Modality Treatment inLocally Advanced Non-Small Cell Lung Cancer.
Ae Kyoung KIM ; Jeong Seong SU ; Kyoung Sang SHIN ; Sang Gee PARK ; Hai Jeong JO ; Jong Jin LEE ; Jee Won SEO ; Ju Ock KIM ; Sun Young KIM
Tuberculosis and Respiratory Diseases 1995;42(4):502-512
BACKGROUND: One quarter to one third of patients with NSCLC present with primary tumors that although confined to the thorax are too extensive for surgical resection. Until resently standard treatment for these patients had been thoracic radiation, which produces tumor regression in most patients but few cures and dismal 5-year survival rate. The fact that death for most patients with stage III tumors is caused by distant metastases has promped a reevaluation of combined modality treatment approaches that include systemic chemotherapy. Therefore, we report the results observed in a study to evaluate the effect of multimodality treatment in locally advanced non-small cell lung cancer from 1/91 to 8/93 in CNUH. METHOD: We grouped the patients according to the treatment modalities and evaluated response rate, median survival and the effect of prognostic variables. Among 67 patients evaluated, twenty seven patients classified with group A, received cisplatin and etoposide containing combination chemotherapy alone, eighteen patients, classified with group B, received chemotherapy and radiotherapy, fifteen patients, group C, received neoadjuvant or adjuvant chemotherapy and surgery with/without radiation therapy, seven patients, group D, received only supportive care. RESULT: The major response rate for group A and B was 37% and 61% respectively. There was no statistically significant difference in response rate between A and B groups(p=0.97). The analysis of prognostic factors showed that differences of age, sex, pathology, blood type, smoking year, stage and ECOG performance did not related to improvement in survival. Median survival time was 8.6 months for group A, 13.4 months for group B, 19.2 months for group C, and 5.4 months for group D, respectively and there was statistically significant difference(p=0.003), suggesting that multimodality therapy was associated with signigicant improvement in survival. Subset survival analysis showed a significant therapeutic effect for earlier stage and good performance state(p=0.007, 0.009, respectively). A possible survival advantages were observed for major response groups. CONCLUSION: It was suggested that multimodality therapy for the management of patients who had stage III disease, has yielded good median survival and long survival for seleted patients. But, it is necessory to validate above result with further investigation in large scale and in prospective randomized trials.
Carcinoma, Non-Small-Cell Lung*
;
Chemotherapy, Adjuvant
;
Cisplatin
;
Drug Therapy
;
Drug Therapy, Combination
;
Etoposide
;
Humans
;
Neoplasm Metastasis
;
Pathology
;
Prospective Studies
;
Radiotherapy
;
Smoke
;
Smoking
;
Survival Rate
;
Thorax
8.Fibrous hamartoma of infancy: an experience of a single institute.
Guhyun KANG ; Yeon Lim SUH ; Joungho HAN ; Gee Young KWON ; Suk Koo LEE ; Jeong Meen SEO
Journal of the Korean Surgical Society 2011;81(1):61-65
PURPOSE: Fibrous hamartoma (FH) of infancy is a distinctive fibrous growth that most frequently occurs at birth and during the postnatal period. It is important for clinicians and pathologists to recognize this entity to avoid an aggressive approach. METHODS: We herein describe the clinicopathologic features of 9 FHs diagnosed at a single institution between 1997 and 2010. RESULTS: There were 7 boys and 2 girls, and the mean age of presentation was 14.7 months. The common locations were the lower back and gluteal region (n = 3) and scrotum (n = 2). They were solitary lesions, and measured 1.0 to 7.0 cm in maximum diameter (mean, 4.9 cm). The excised masses tended to be poorly circumscribed, and consisted of an intimate mixture of firm, gray-white tissue with fat. Histologically, these lesions were composed of 3 components forming a vague, irregular, organoid pattern: well-defined intersecting trabeculae of fibrocollagenous tissue; loosely textured areas of small, rounded, primitive mesenchymal cells; and mature fat. Over a median follow-up of 72 months, no patient showed recurrence. CONCLUSION: FH should be distinguished from other forms of fibromatosis and malignant tumors because it is benign and usually cured by local excision.
Buttocks
;
Diagnosis, Differential
;
Fibroma
;
Follow-Up Studies
;
Hamartoma
;
Humans
;
Infant
;
Organoids
;
Parturition
;
Scrotum
;
Soft Tissue Neoplasms
9.Preclinical studies for pharmacokinetics and biodistribution of Ad-stTRAIL, an adenovirus delivering secretable trimeric TRAIL for gene therapy.
Chae Young KIM ; Soon Hye PARK ; Moonsup JEONG ; O Seo KWON ; Hyounmie DOH ; Su Hyung KANG ; Paul D ROBBINS ; Byong Moon KIM ; Dai Wu SEOL ; Byung Gee KIM
Experimental & Molecular Medicine 2011;43(10):580-586
Malignant glioma is the most frequent type in brain tumors. The prognosis of this tumor has not been significantly improved for the past decades and the average survival of patients is less than one year. Thus, an effective novel therapy is urgently needed. TNF-related apoptosis inducing ligand (TRAIL), known to have tumor cell-specific killing activity, has been investigated as a novel therapeutic for cancers. We have developed Ad-stTRAIL, an adenovirus delivering secretable trimeric TRAIL for gene therapy and demonstrated the potential to treat malignant gliomas. Currently, this Ad-stTRAIL gene therapy is under phase I clinical trial for malignant gliomas. Here, we report preclinical studies for Ad-stTRAIL carried out using rats. We delivered Ad-stTRAIL intracranially and determined its pharmacokinetics and biodistribution. Most Ad-stTRAIL remained in the delivered site and the relatively low number of viral genomes was detected in the opposite site of brain and cerebrospinal fluid. Similarly, only small portion of the viral particles injected was found in the blood plasma and major organs and tissues, probably due to the brain-blood barrier. Multiple administrations did not lead to accumulation of Ad-stTRAIL at the injection site and organs. Repeated delivery of Ad-stTRAIL did not show any serious side effects. Our data indicate that intracranially delivered Ad-stTRAIL is a safe approach, demonstrating the potential as a novel therapy for treating gliomas.
Adenoviridae/genetics
;
Animals
;
Blood-Brain Barrier
;
Brain/drug effects/*metabolism/pathology
;
Brain Neoplasms/genetics/metabolism/pathology/*therapy
;
Clinical Trials, Phase I as Topic
;
DNA, Viral/metabolism
;
Disease Models, Animal
;
Drug Delivery Systems
;
Drug Evaluation, Preclinical
;
*Gene Therapy
;
Glioma/genetics/metabolism/pathology/*therapy
;
Humans
;
Liver/drug effects/metabolism/pathology
;
Protein Multimerization/genetics
;
Rats
;
Spleen/drug effects/metabolism/pathology
;
TNF-Related Apoptosis-Inducing Ligand/genetics/*pharmacokinetics
10.Preclinical studies for pharmacokinetics and biodistribution of Ad-stTRAIL, an adenovirus delivering secretable trimeric TRAIL for gene therapy.
Chae Young KIM ; Soon Hye PARK ; Moonsup JEONG ; O Seo KWON ; Hyounmie DOH ; Su Hyung KANG ; Paul D ROBBINS ; Byong Moon KIM ; Dai Wu SEOL ; Byung Gee KIM
Experimental & Molecular Medicine 2011;43(10):580-586
Malignant glioma is the most frequent type in brain tumors. The prognosis of this tumor has not been significantly improved for the past decades and the average survival of patients is less than one year. Thus, an effective novel therapy is urgently needed. TNF-related apoptosis inducing ligand (TRAIL), known to have tumor cell-specific killing activity, has been investigated as a novel therapeutic for cancers. We have developed Ad-stTRAIL, an adenovirus delivering secretable trimeric TRAIL for gene therapy and demonstrated the potential to treat malignant gliomas. Currently, this Ad-stTRAIL gene therapy is under phase I clinical trial for malignant gliomas. Here, we report preclinical studies for Ad-stTRAIL carried out using rats. We delivered Ad-stTRAIL intracranially and determined its pharmacokinetics and biodistribution. Most Ad-stTRAIL remained in the delivered site and the relatively low number of viral genomes was detected in the opposite site of brain and cerebrospinal fluid. Similarly, only small portion of the viral particles injected was found in the blood plasma and major organs and tissues, probably due to the brain-blood barrier. Multiple administrations did not lead to accumulation of Ad-stTRAIL at the injection site and organs. Repeated delivery of Ad-stTRAIL did not show any serious side effects. Our data indicate that intracranially delivered Ad-stTRAIL is a safe approach, demonstrating the potential as a novel therapy for treating gliomas.
Adenoviridae/genetics
;
Animals
;
Blood-Brain Barrier
;
Brain/drug effects/*metabolism/pathology
;
Brain Neoplasms/genetics/metabolism/pathology/*therapy
;
Clinical Trials, Phase I as Topic
;
DNA, Viral/metabolism
;
Disease Models, Animal
;
Drug Delivery Systems
;
Drug Evaluation, Preclinical
;
*Gene Therapy
;
Glioma/genetics/metabolism/pathology/*therapy
;
Humans
;
Liver/drug effects/metabolism/pathology
;
Protein Multimerization/genetics
;
Rats
;
Spleen/drug effects/metabolism/pathology
;
TNF-Related Apoptosis-Inducing Ligand/genetics/*pharmacokinetics