1.Molecular Culprits Generating Brain Tumor Stem Cells.
Brain Tumor Research and Treatment 2013;1(1):9-15
Despite current advances in multimodality therapies, such as surgery, radiotherapy, and chemotherapy, the outcome for patients with high-grade glioma remains fatal. Understanding how glioma cells resist various therapies may provide opportunities for developing new therapies. Accumulating evidence suggests that the main obstacle for successfully treating high-grade glioma is the existence of brain tumor stem cells (BTSCs), which share a number of cellular properties with adult stem cells, such as self-renewal and multipotent differentiation capabilities. Owing to their resistance to standard therapy coupled with their infiltrative nature, BTSCs are a primary cause of tumor recurrence post-therapy. Therefore, BTSCs are thought to be the main glioma cells representing a novel therapeutic target and should be eliminated to obtain successful treatment outcomes.
Adult Stem Cells
;
Brain Neoplasms*
;
Brain*
;
Drug Therapy
;
Glioma
;
Humans
;
Radiotherapy
;
Recurrence
;
Stem Cells*
2.A Case of Infantile Nephrotic Syndrome with Focal Segmental Glomerulosclerosis.
Se Eun KIM ; Young Sim HAN ; Min Seop SONG ; Woo Yeong CHUNG
Journal of the Korean Society of Pediatric Nephrology 1999;3(1):100-103
Paraganglioma is a benign tumor arising in the paraganglion system scattered throughout the body, but its cytopathologic findings arenot well known. We experienced a case of paraganglioma of carotid body diagnosed by fine needle aspiration. The patient was a 30 year-old female who suffered from the left neck mass for 3 years. The mass was 3x3crn in size without pulsation or bruit. Cytologically, the smear revealed aggregated and singly scattered tumor cells having abundant pale cytoplasm and indistinct cell borders. Their nuclei were round to oval, but enlarged nuclei were occasionally observed. The nuclear membrane was smooth with fine clumping of chromatin. Differentiation from metastatic follicular carcinoma of the thyroid gland was difficult.
Adult
;
Biopsy, Fine-Needle
;
Carotid Body
;
Chromatin
;
Cytoplasm
;
Female
;
Glomerulosclerosis, Focal Segmental*
;
Humans
;
Neck
;
Nephrotic Syndrome*
;
Nuclear Envelope
;
Paraganglioma
;
Thyroid Gland
3.Histologic Change of Injected Fat Cell Taken by Different Technique.
Soon Jae YANG ; Nam Seok PARK ; Sang Gyu KANG ; Se Yeong KIM
Journal of the Korean Society of Aesthetic Plastic Surgery 2001;7(1):16-21
No abstract available.
Adipocytes*
4.Pseudomyxoma Peritonei A case of long term survival after operation.
Yeong Ho JUNG ; Woo Chan PARK ; Seung Taek OH ; Seung Jin YOO ; Se Kyung KIM ; In Chul KIM
Journal of the Korean Society of Coloproctology 1998;14(3):667-674
Pseudomyxoma peritonei may result from implantation of benign or malignant tumor in peritoneal cavity and is filled with gelatinous material (termed "Jelly Belly") in abdominal cavity. Its origin is usually an appendiceal or ovarian mucinous adenoma or cystadenocarcinoma, but other primary origin such as uterus, intestine, pancreas and stomach umor have been reported. Generally, pseudomyxoma peritonei is slowly progressive and has low grade malignant potential. This report presents a unusual long term survival after evacuation of 15,000 cc of gelatinous material from abdominal cavity which was the low grade mucinous adenocarcinoma and a review of the current literature, management and new its concept. The origin of pseudomyxoma peritonei of this case was most likely from appendiceal mvcinous adenocarcinoma.
Abdominal Cavity
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Adenocarcinoma
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Adenocarcinoma, Mucinous
;
Adenoma
;
Cystadenocarcinoma
;
Gelatin
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Intestines
;
Mucins
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Pancreas
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Peritoneal Cavity
;
Pseudomyxoma Peritonei*
;
Stomach
;
Uterus
5.Effect of Growth Hormone Secretion on Serum Concentration of Leptin.
Se Eun KIM ; Jeong Nyeo LEE ; Sang Ook NAM ; Woo Yeong CHUNG
Journal of the Korean Pediatric Society 2000;43(7):959-966
PURPOSE: To investigate the effect of growth hormone(GH) secretion on serum concentration of leptin, we evaluated the differences in serum concentration of leptin between patients with growth hormone deficiency(GHD) and GH normal short stature in prepubertal male children, and the relationship between GH and serum leptin level. Also, we analyzed the correlation between serum concentrations of leptin and insulin-like growth factor-I(IGF-I), insulin-like growth factor binding protein-3(IGFBP-3), total cholesterol(TC), free fatty acid(FFA) and body mass index(BMI). METHODS: Eight cases with GHD and 10 cases with GH normal short stature were included in this study. Patients were all male, prepubertal children with mean age 10.6 years. Blood samples were collected in these patients by L-dopa GH provocation test. Statistical analysis of the comparisons of serum leptin level and correlation of multiple variables were performed using PC-SAS program. Significance was defined as P<0.05. RESULTS: The mean serum concentration of leptin in GHD(12.27+/-10.63ng/mL) was significantly higher than in GH normal short stature(5.39+/-3.21ng/mL)(P=0.0344). Serum concentration of leptin was negatively correlated to GH(y=-7.7x+43.3, r=-0.23, P=0.0109). Serum concentration of leptin was positively correlated to BMI(y=2.5x-33.3, r=0.75, P=0.0003). Serum concentration of leptin was not correlated to IGF-I, IGFBP-3, TC and FFA. CONCLUSION: Serum concentration of leptin was siginificantly increased in patients with GHD compared to GH normal short stature and was negatively correlated to GH.
Child
;
Growth Hormone*
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Humans
;
Insulin-Like Growth Factor Binding Protein 3
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Insulin-Like Growth Factor I
;
Leptin*
;
Levodopa
;
Male
6.Initial Results after Implantation of Coronary Artery Stents with Antiplatelet Agents.
Ji Won SON ; Yeong Jun KIM ; Min Soo SON ; Se Jin OH ; Tae Hoon AHN ; In Suk CHOI ; Iak Kyun SHIN
Korean Circulation Journal 1998;28(6):939-946
Backgound: The placement of stents in coronary arteries has been shown to reduce acute closure and restenosis in comparison to balloon angioplasty. However, clinical use of intracoronary stents is impeded by the subacute stent thrombosis and hemorrhagic complications associated with the anticoagulant regimen. It's known that the complete stent deployment with high pressure inflation and new antiplatelet agents are effective in reduction of subacute thrombosis and hemorrhage. So we evaluated initial results (success and complication rate) after high pressure-stent deployment with new anticoagulation protocol. METHODS: One hundred and ninety one patients with 201 lesions were treated with 231 stents of various types. The high pressure balloon inflation and antiplatelets agents were used in all cases. Final high pressure balloon inflation guided by IVUS were performed in 23 consecutive cases with incomplete stent deployment according to angiographic findings. RESULTS: 1) The indications of stenting (n=210) were De novo in 124 (59%), bailout procedure in 57 (27%), suboptimal result after PTCA in 19 (8%), and restenosis after PTCA in 14 (6%). The location of lesions were LAD in 101, RCA in 67, circumflex in 28, ramus intermedius in 3, and LMT artery in 2 lesions. Angiographic morphologic characteristics were type A in 2, type B in 158 (B1: 57, B2: 101), and type C in 22 lesions. 2) The angiographic and clinical success rate was 96% (192/201) and 92% (186/201) respectively. 3) In angiographic analysis, the baseline average reference vessel dirmeter was 3.33+/-0.35 mm. Baseline minimum lumen diameter (MLD) was 0.58+/-0.29 mm, with baseline percent diameter stenosis of 82.86+/-8.64%. The final stent diameter was 3.37+/-0.29 mm, with mean final percent stenosis of 0.63+/-8.25. The mean MLD after stenting was significantly increased (p<0.001). The mean MLD within stent increased 14%, from 2.91+/-0.39 mm at the nominal balloon inflation (inflation pressure=7 atm) to 3.37+/-0.29 mm at high pressure balloon inflation (inflation pressure <0A65B>12atm) (p<0.001). The length of lesions in GR I (cook), GR II, and Micro II stents were significantly longer than ones in PS, Cordis, Wiktor, Nir (p<0.001). 4) In intravascular ultrasound analysis, the mean lumen CSA at the tightest point within stent increased 11%, from 8.4+/-2.4 mm2 at the intial intravascular ultrasound to 9.4+/-2.1 mm2 at the final intravascular ultrasound (p<0.001). 5) The procedural and postprocedural complications were 2 acute closures associated with AMI and emergent CABG, 1 subacute closure which was revascularized by bail out stenting, 5 major hemorrhage requiring transfusion associated with 1 CVA and 2 metabolic acidosis induced by acute renal failure, and 5 death. CONCLUSION: The high pressure stent deployment procedure and new anticoagulation protocol associating tidopidine and aspirin without coumadin or prolonged heparin infusion allow us to obtain an acceptably low subacute thrombosis or bleeding complication rate. These results are encouraging and allow a wide use of coronary stenting.
Acidosis
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Acute Kidney Injury
;
Angioplasty, Balloon
;
Arteries
;
Aspirin
;
Constriction, Pathologic
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Coronary Vessels*
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Hemorrhage
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Heparin
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Humans
;
Inflation, Economic
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Platelet Aggregation Inhibitors*
;
Stents*
;
Thrombosis
;
Ultrasonography
;
Warfarin
7.The Effect of a Complex Intervention Program for Unilateral Neglect in Patients with Acute-Phase Stroke: A Randomized Controlled Trial
Hyun Se CHOI ; Deok Ju KIM ; Yeong Ae YANG
Osong Public Health and Research Perspectives 2019;10(5):265-273
OBJECTIVES: The purpose of this study was to examine the combined effects of Prism Adaptation (PA) plus functional electrical stimulation (FES) on stroke patients with unilateral neglect, and suggest a new intervention method for acute-phase stroke patients. METHODS: There were 30 patients included in this study from April to October 2016 that had unilateral neglect whilst hospitalized following a stroke (diagnosed by a professional). The participants, who were patients receiving occupational therapy, understood the purpose of the study and agreed to participate. The patients were randomly divided into 3 groups: PA plus FES group (Group A), PA group (Group B), and FES group (Group C). Treatments lasted for 50 minutes per day, 5 times per week, for 3 weeks in total. Reevaluation was conducted after 3 weeks of intervention. RESULTS: All 3 groups showed unilateral neglect reduction after the intervention, but PA plus FES (complex intervention method) was more effective than PA or FES alone [effect size: Motor-free Visual Perception Test (0.80), Albert test (0.98), CBS (0.92)]. CONCLUSION: The results of this study support further studies to examine complex intervention for the treatment of unilateral neglect.
Electric Stimulation
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Humans
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Methods
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Occupational Therapy
;
Stroke
;
Visual Perception
8.Fragility Fractures of the Pelvis and Sacrum
Journal of the Korean Fracture Society 2023;36(1):29-38
The incidence of fragility fractures of the pelvis (FFP) has increased significantly due to the aging popu-lation and improved diagnostic modalities. The evaluation and treatment of these patients differ from that of high-energy pelvic ring injuries typically seen in younger patients. Therefore, it is important to classify the FFP by patterns of the classification system to standardize optimal treatment criteria and appropriate treatment strategy. However, some cases are not classifiable according to the FFP classifi-cation. A newly proposed classification that can be verified by comparing existing FFP classifications isneeded to overcome the weak points. Non-operative treatment is usually considered first and should focus on early mobilization. Operative fixation should focus on stabilizing the minimally invasive pelvic ring than the reduction of fractures to facilitate early mobilization and avoid complications that can arise from comorbidities associated with immobility.
9.Cervical Myelopathy Following Intervertebral Disc Herniation at the Surgical Site Post-Cervical Artificial Disc Replacement Surgery
In Bo KIM ; Yeong Hun KANG ; Sung Soo CHUNG ; Se Myoung JO
The Journal of the Korean Orthopaedic Association 2024;59(3):219-222
A 64-year-old male patient presented with hand numbness and gait disturbance. He had undergone cervical artificial disc replacement (C-ADR) at another hospital nine years earlier. Magnetic resonance imaging (MRI) revealed a protruded disc at the surgical level compressing the spinal cord. The implant and protruded disc were removed. Fusion was then performed. This case report highlights the importance of long-term follow-up of patients who have undergone C-ADR, and the need to be aware of the potential for late complications.In addition, it is important to ensure as complete a disk removal as possible during C-ADR.
10.Distribution of working position among workers with varicose veins based on the National Health Insurance and National Employment Insurance data
Saemi JUNG ; Youngki KIM ; Dongmug KANG ; Se Yeong KIM ; Inah KIM ; Eun Mi KIM
Annals of Occupational and Environmental Medicine 2020;32(1):e21-
Background:
This study aimed to determine the effect of specific working postures on the development of varicose veins (VV). By using Korea's National Health Insurance (NHI) and National Employment Insurance (NEI) data, we analyzed the general characteristic and difference in proportions of VV cases according to occupational working posture.
Methods:
From the NEI and NHI data, participant demographics, such as gender, age, body mass index, and number of workers in specific occupations or industries were obtained.We classified the 240 occupations into blue-collar (BC) and white-collar (WC) occupations and subdivided them into standing, sitting, and walking groups according to the dominant working posture.
Results:
The number of VV patients per 100,000 individuals increased with age, with a higher number of women than men and a higher number of patients in the BC than WC groups. For the BC group, the proportion of VV cases was the highest in the standing group, followed by the walking and sitting groups, but there was no significant difference between standing and walking groups in man. For the WC group, the standing group had a higher proportion of VV cases than the sitting group, but there was no significant difference between the standing and sitting group in man. In the BC group, the proportion of VV cases was the highest among medical and welfare-related elementary workers, bakers and cookie makers, automobile assemblers, cleaning and guarding-related elemental workers, and nurses and dental hygienists. In the WC group, the proportion of VV cases was the highest among food/ lodging/tourism/entertainment/sports-related managers, environment/cleaning/protective services-related managers, finance and insurance clerks, accounting book-keeping clerks, and social welfare and counseling professionals.
Conclusions
This study was performed to determine the characteristics of VV with different working posture among Korean workers. It is expected to be the basis of further studies on occupational musculoskeletal diseases.