1.An Imported Case of Intestinal Capillariasis Presenting as Protein-Losing Enteropathy.
Youngmee KWON ; Hwoon Yong JUNG ; Hyun Kwon HA ; Inchul LEE
Korean Journal of Pathology 2000;34(3):235-238
Intestinal capillariasis is caused by a small trichurid nematode, Capillaria philippinensis, which infects freshwater fish as intermediate hosts and subsequently fish eating birds as definitive hosts. It has occurred in areas such as the Philippines and Thailand where people eat raw fish. We report an imported case of intestinal capillariasis in a 31-year-old Korean man who lived in Saipan for ten years. He suffered from diarrhea with weight loss, abdominal distension, and pitting edema in the lower extremities for two years. He ate raw freshwater fish in the Saipan 2 years ago. The diagnosis was confirmed by jejunal biopsy. Flat mucosal surface without villi contained sections of numerous round worms with stichosome, larvae, and eggs which were identified as Capillaria philippinensis. The patient was successfully treated with albendazole.
Adult
;
Albendazole
;
Biopsy
;
Birds
;
Capillaria
;
Diagnosis
;
Diarrhea
;
Eating
;
Edema
;
Eggs
;
Fresh Water
;
Humans
;
Larva
;
Lower Extremity
;
Ovum
;
Philippines
;
Protein-Losing Enteropathies*
;
Thailand
;
Weight Loss
2.Small Round Structured Virus (SRSV) Outbreak Among Elementary School Students in Wonju Province.
Unyeong GO ; Young Hak SHIN ; Jung Sik YOO ; Youngmee JEE ; Ki Soon KIM ; Jae Deuk YOON
Korean Journal of Infectious Diseases 2001;33(3):210-213
No abstract available.
Gangwon-do*
;
Humans
3.Current Status of Three-Dimensional Printing Inks for Soft Tissue Regeneration.
Ji Eun KIM ; Soo Hyun KIM ; Youngmee JUNG
Tissue Engineering and Regenerative Medicine 2016;13(6):636-646
Recently, three-dimensional (3D) printing technologies have become an attractive manufacturing process, which is called additive manufacturing or rapid prototyping. A 3D printing system can design and fabricate 3D shapes and geometries resulting in custom 3D scaffolds in tissue engineering. In tissue regeneration and replacement, 3D printing systems have been frequently used with various biomaterials such as natural and synthetic polymers. In tissue engineering, soft tissue regeneration is very difficult because soft tissue has the properties of high elasticity, flexibility and viscosity which act as an obstacle when creating a 3D structure by stacking layer after layer of biomaterials compared to hard tissue regeneration. To overcome these limitations, many studies are trying to fabricate constructs with a very similar native micro-environmental property for a complex biofunctional scaffold with suitable biological and mechanical parameters by optimizing the biomaterials, for example, control the concentration and diversification of materials. In this review, we describe the characteristics of printing biomaterials such as hydrogel, synthetic polymer and composite type as well as recent advances in soft tissue regeneration. It is expected that 3D printed constructs will be able to replace as well as regenerate defective tissues or injured functional tissues and organs.
Biocompatible Materials
;
Elasticity
;
Hydrogel
;
Ink*
;
Pliability
;
Polymers
;
Printing, Three-Dimensional*
;
Regeneration*
;
Tissue Engineering
;
Viscosity
4.The Differential Staging of Murine Thymic Lymphoma Cell Lines, Scid.adh, R1.1 and EL-4.
Jong Seok CHAE ; Hae Jung KIM ; Weon Seo PARK ; Youngmee BAE ; Kyeong Cheon JUNG
Immune Network 2002;2(4):217-222
BACKGROUND: Scid.adh is a recently developed murine thymic lymphoma cell line, which has been used as in vitro model for the study of double negative stage III thymocytes. In this study, we compared the expression profile of a number of genes and proteins, which are tightly related to T cell development and apoptosis, in thymic lymphoma cell lines, R1.1, EL-4, and Scid.adh for the developmental staging. METHODS: We examined the expression of development marker genes and proteins in three lymphoma cell lines by flow cytometry and RT-PCR. In addition, the expression of apoptosis-related molecules including bcl-2, bax and Fas was also investigated. RESULTS: As previously reported, Scid.adh cell line expressed CD8 and CD25 but not TCR alpha chain, while R1.1 cells expressed TCR alpha chain and both CD4 and CD8 transcripts. These suggest that R1.1 might be in double positive stage, and low level of CD44 expression and the absence of CD25 support this suggestion. In contrast, EL-4 cells showed high level of TCR alpha chain transcript, and low-level of CD4 expression, suggesting that EL-4 is in more mature stage than R1.1. Further, this suggestion was supported by the lack of mT-20 in EL-4 cells, which is expressed in the immature thymocytes, and Scid.adh and R1.1 cell lines, but not in the terminally differentiated thymocytes and peripheral T cells. Among the apoptosis-related gene, transcripts of bcl-2 gene were detected in both R1.1 and EL-4 but not in Scid.adh cells, while bax was expressed in all cell lines. Fas expression was the highest in EL-4 cells and low in Scid.adh cell line. CONCLUSION: R1.1 cell may represent double positive stage, and EL-4 is more differentiated cell line. In addition, Scid.adh and EL-4 cell lines are suspected to be useful for the study of function of bcl-2 family and Fas during the thymocyte development, respectively.
Apoptosis
;
Cell Line*
;
Flow Cytometry
;
Genes, bcl-2
;
Humans
;
Lymphoma*
;
T-Lymphocytes
;
Thymocytes
5.SAPHO Syndrome in a Patient with Breast Cancer Mimicking Bone Metastasis: A Case Report.
Kyungran KO ; Hee Jung SUH ; Ji Young YOU ; So Youn JUNG ; Youngmee KWON ; Young Whan KOH
Journal of the Korean Society of Magnetic Resonance in Medicine 2014;18(1):59-63
A 66-year-old woman was transferred to our hospital due to her right breast cancer. Preoperative breast MRI shows 1.9 cm malignancy on her right breast (cT1N0M0) and incidentally found osteosclerotic change of left coststernoclavicular region. Bone scintigraphy showed hot uptake and the possibility of bone metastasis was not excluded. However, because the bone metastasis is not common in early stage cancer and the costosternoclavicular region is not common site, other possibility should be considered. SAPHO syndrome can be diagnosed even in the absence of dermatosis when there is an axial or appendicular osteitis and hyperostosis, especially in costosternoclavicular region. Though breast imaging specialists are not accustomed to this disease entity, awareness and diagnosis of the SAPHO syndrome can help differentiate bone metastasis.
Acquired Hyperostosis Syndrome*
;
Aged
;
Breast Neoplasms*
;
Breast*
;
Diagnosis
;
Female
;
Humans
;
Hyperostosis
;
Magnetic Resonance Imaging
;
Neoplasm Metastasis*
;
Osteitis
;
Radionuclide Imaging
;
Skin Diseases
;
Specialization
6.CD43 cross-linking increases the Fas-induced apoptosis through induction of Fas aggregation in Jurkat T-cells.
Hae Jung KIM ; Hyo Jin PARK ; Weon Seo PARK ; Youngmee BAE
Experimental & Molecular Medicine 2006;38(4):357-363
CD43 (sialophorin, leukosialin) is a heavily sialylated surface protein expressed on most leukocytes and platelets including T cells. Although CD43 antigen is known to have multiple and complex structure, exact function of CD43 in each cell type is not completely understood. Here we evaluated the role of CD43 in Fas (CD95)-induced cell death in human T lymphoblastoid cell line, Jurkat. Crosslinking CD43 antigen by K06 mAb increased the Fas-mediated Jurkat cell apoptosis and the augmentation was inhibited by treatment with caspase inhibitors. Further, CD43 signaling of Jurkat cells induced Fas oligomerization on the cell surfaces implying that CD43 ligation have effects on early stage of Fas-induced T cell death. These also suggest that CD43 might play an important role in contraction of the immune response by promotion of Fas-induced apoptosis in human T cells.
Receptor Aggregation/immunology
;
Jurkat Cells
;
Humans
;
Caspases/metabolism
;
Apoptosis/*immunology
;
Antigens, Surface/metabolism
;
Antigens, CD95/metabolism/*physiology
;
Antigens, CD43/metabolism/*physiology
;
Antibodies, Monoclonal/metabolism
7.Adenocarcinoma Arising in Gastric Heterotopic Pancreas: A Case Report.
Dong Eun SONG ; Youngmee KWON ; Kyu Rae KIM ; Sung Tae OH ; Jung Sun KIM
Journal of Korean Medical Science 2004;19(1):145-148
A heterotopic pancreas in the gastrointestinal tract is mostly found incidentally and its malignant transformation is extremely rare. We describe the second case of adenocarcinoma arising in a gastric heterotopic pancreas of an asymptomatic 35-yr-old man in Korea. Esophagogastroduodenoscopy revealed a submucosal tumor with an irregular central umbilication in the gastric antrum. A wedge resection specimen demonstrated a submucosal oligolocular cystic mass (1.7x1.4x1.2 cm) with a solid portion. Microscopically, the cystic portion was composed of dilated pancreaticobiliary type ducts with adjacent small foci of periductal glandular structures. The adenocarcinoma components in the solid area infiltrated the proper muscle and the overlying mucosa of the stomach. The transitional area between the benign ductal structures and the adenocarcinoma component was found. The follow-up course was uneventful 5 months postoperatively.
Adenocarcinoma/complications/*diagnosis/pathology
;
Adenomyoma/pathology
;
Adult
;
Autopsy
;
Choristoma
;
Epithelium/pathology
;
Gastric Mucosa/pathology
;
Human
;
Male
;
Pancreas/*abnormalities
;
Pancreatic Neoplasms/complications/*diagnosis/pathology
;
Time Factors
8.Comparison of student's satisfaction on school food service environment by the eating place and gender.
Jisook JUNG ; Youngmee LEE ; Yu Jin OH
Nutrition Research and Practice 2009;3(4):295-299
The purpose of this study was to compare student's satisfaction with school food service environment to improve the quality of middle school meal service. A survey was conducted of 680 students (boys 246, girls 433) from 6 middle schools providing school meals from October to November 2007. The questionnaires were directly distributed to the subjects for comparison of satisfaction of school meals depending on the eating place. As for the quantity of food, classroom group (3.40) expressed significantly higher satisfaction than cafeteria group (3.16, P < 0.01), but as for the satisfaction on hygiene, classroom group (2.76) showed significantly lower satisfaction than cafeteria group (3.03, P < 0.01). About the satisfaction of school meal environment, classroom group showed more satisfaction on distribution time, eating place, eating atmosphere (P < 0.001). The classroom group showed higher satisfaction than cafeteria group in cases of quantity, diversity of types of soup, dessert, and the cost of school meal. To improve eating place and hygiene of school meal, sufficient cafeteria space and pleasant environment is needed to be established.
Atmosphere
;
Eating
;
Food Services
;
Humans
;
Hygiene
;
Hypogonadism
;
Meals
;
Mitochondrial Diseases
;
Ophthalmoplegia
;
Surveys and Questionnaires
9.Distinct Patterns of Cleavage and Translocation of Cell Cycle Control Proteins in CD95-induced and p53-induced apoptosis.
Weon Seo PARK ; Kyeong Cheon JUNG ; Doo Hyun CHUNG ; Woo Dong NAM ; Won Jin CHOI ; Youngmee BAE
Journal of Korean Medical Science 2003;18(4):467-472
Apoptotic cell death induced by p53 occurs at a late G1 cell cycle checkpoint termed the restriction(R)point, and it has been proposed that p53-induced apoptosis causes upregulation of CD95. However, as cells with defective in CD95 signaling pathway are still sensitive to p53-induced apoptosis, CD95 cannot be the sole factor resulting in apoptosis. In addition, unlike p53-induced apoptosis, the relationship between CD95-mediated apoptosis and the cell cycle is not clearly understood. It would there-fore be worth investigating whether CD95-mediated cell death is pertinent with p53-induced apoptosis in view of cell cycle related molecules. In this report, biochemical analysis showed that etoposide-induced apoptosis caused the induction and the nuclear translocation of effector molecules involved in G1 cell cycle checkpoint. However, there was no such translocation in the case of CD95-mediated death. Thus, although both types of apoptosis involved caspase activation, the cell cycle related proteins responded differently. This argues against the idea that p53-induced apoptosis occurs through the induction of CD95/CD95L expression.
Active Transport, Cell Nucleus
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Antigens, CD95/*metabolism
;
*Apoptosis
;
Cell Cycle
;
Cell Nucleus/metabolism
;
Coculture
;
Dose-Response Relationship, Drug
;
Down-Regulation
;
Etoposide/pharmacology
;
Flow Cytometry
;
Human
;
Immunoblotting
;
Jurkat Cells
;
Nucleic Acid Synthesis Inhibitors/pharmacology
;
Protein Binding
;
Protein Transport
;
Protein p53/*metabolism
;
Signal Transduction
;
Up-Regulation
10.Synchronous Hepatocellular Carcinoma and Cholangiocarcinoma Arising in Two Different Dysplastic Nodules.
Youngmee KWON ; Seung Kyu LEE ; Jung Sun KIM ; Jae Y RO ; Eunsil YU
The Korean Journal of Hepatology 2002;8(2):223-227
No abstract available.
Carcinoma, Hepatocellular/*pathology
;
Cholangiocarcinoma/*pathology
;
Female
;
Human
;
Liver Neoplasms/*pathology
;
Middle Aged
;
Neoplasms, Multiple Primary/*pathology