1.Urodynamic Characteristics of Women with Severe Uterine Prolapse.
Gun Pyung KIM ; Dong Deuk KWON ; Yang Il PARK
Korean Journal of Urology 2000;41(12):1506-1510
No abstract available.
Female
;
Humans
;
Urodynamics*
;
Uterine Prolapse*
2.Metastatic carcinoma of the thyroid to the skull: report of 2 cases
Dong Gie HAN ; Il Young KIM ; Byung Ho LEE ; Ki Jung KIM ; Il Gyu YOON ; Seung Ha YANG
Journal of the Korean Radiological Society 1985;21(4):552-557
Two cases of skull metastasis from thyroid carcinoma are presented. The one case shows multiple involvement inthe skull base with sphenoid sinus, frontal bone, and rib. The other case is solitary extensive involvement to theright parietal bone. The follicular caroinoma of the thyroid shows a strong tendency toward vascualr invasion and dissemination through blood stream to the lungs, bones, liver, brain, and other distant sites. The sternum, thevetebrae, and the pelvis are the most common sites in bone metastasis of thyroid carcinoma, followed by the femur,shoulder girdle, skull, and rib. Metastatic caroinoma to the skull base, including sphenoid sinus s extremelyrare. Authors experienced recently 2 cases of metastatic carcinoma of the thyroid to the skull and report withreview of literature.
Brain
;
Frontal Bone
;
Liver
;
Lung
;
Neoplasm Metastasis
;
Parietal Bone
;
Pelvis
;
Ribs
;
Rivers
;
Skull Base
;
Skull
;
Sphenoid Sinus
;
Sternum
;
Thyroid Gland
;
Thyroid Neoplasms
3.A Clinical Study of Neuroblastoma.
Jung Sook HONG ; Yang Dong PARK ; Il Whan KIM ; Hyun Gi JUNG ; Jae Sun PARK
Journal of the Korean Pediatric Society 1987;30(1):80-88
No abstract available.
Neuroblastoma*
4.Immunohistochemical Study on Cytokeratin Expression in Epidermis of Human Fetus.
Sung Sik PARK ; Dong Ho YANG ; Kwang Il NAM ; Shin Kon KIM
Korean Journal of Physical Anthropology 1995;8(1):39-52
To identify the developmental characteristics of intermediate filaments, the expressions of various cytokeratines (CK), desmin and vimentin in fetal (14032 weeks of gestations) and adult epidermis were studied immunohistochemically. The primary antibodies used were CK7, 8, 10, 14, 18, AE8, 5D3, and MNFl16 for cytokeratins, D33 for desmin, and V9 for vimentin. At 14 weeks of gestation, the epidermis consisted of basal cells and periderm. The periderm exhibited positive staining for CK8 and AE8, and weak staining for MNF116 and D33. The basal cells showed positive staining for MNF116 and D33. The epidermis did not reacted for CK7, 10, 14, 18, 5D3, and V9 at this period. At 16-20 weeks of gestation, the epidermis was composed of basal, intermediate, and periderm layers. The periderm was positive for CK8, 18, AE8, MNF116, and D33. The intermediate cells were positive for CK10 and the basal cells CK14, MNF116, and D33. Few cells were stained positively with V9 among the basal cells. At 24-32 weeks of gestation, the epidermis exhibited no longer positive reactions for CK8, 18, AE8 and D33. The intermediate cells were positive for CK10. Immunoreactivity for MNF116 was noted in intermediate layer just above the basal layer. CKl4, MNFl16, D33, and often V9 were expressed in basal cells. The expressions of CK7 and 5D3 were not observed at any period of gestation. In adult epidermis, basal cells exhibited positive staining for CKl4, MNFl16, and D33. The intermediate cells were strongly positive for CK10, and weakly positive for CK7, 8, and MNFl16. The cells positive for V9 were often present among the basal cells. These results indicate that CK8 and 18 may serve as useful markers for periderm, CK10 for intermediate cells, CKl4 for basal cell, and suggest that the vimentin immunoreactive cells in basal cell layer are Langerhans cells.
Adult
;
Antibodies
;
Desmin
;
Epidermis*
;
Fetus*
;
Humans*
;
Immunohistochemistry
;
Intermediate Filaments
;
Keratins*
;
Langerhans Cells
;
Pregnancy
;
Vimentin
5.Design of next generation antibody drug conjugates.
Acta Pharmaceutica Sinica 2013;48(7):1053-1070
Chemotherapy remains one of the major tools, along with surgery, radiotherapy, and more recently targeted therapy, in the war against cancer. There have appeared a plethora of highly potent cytotoxic drugs but the poor discriminability between cancerous and healthy cells of these agents limits their broader application in clinical settings. Therapeutic antibodies have emerged as an important class of biological anticancer agents, thanks to their ability in specific binding to tumor-associated antigens. While this important class of biologics can be used as single agents for the treatment of cancer through antibody-dependent cell cytotoxicity (ADCC), their therapeutical efficacy is often limited. Antitumor antibody drug conjugates (ADCs) combine the target-specificity of monoclonal antibody (mAb) and the highly active cell-killing drugs, taking advantages of the best characteristics out of both components. Thus, insufficiency of most naked mAbs in cancer therapy has been circumvented by arming the immunoglobulin with cytotoxic drugs. Here mAbs are used as vehicles to transport potent payloads to tumor cells. ADCs contain three main components: antibody, linker and cytotoxics (also frequently referred as payload). Antibodies can recognize and specifically bind to the tumor-specific antigens, leading to an antibody-assisted internalization, and payload release. While ADC has demonstrated tremendous success, a number of practical challenges limit the broader applications of this new class of anticancer therapy, including inefficient cellular uptake, low cytotoxicity, and off-target effects. This review article aims to cover recent advances in optimizing linkers with increased stability in circulation while allowing efficient payload release within tumor cells. We also attempt to provide some practical strategies in resolving the current challenges in this attractive research area, particularly to those new to the field.
Aminobenzoates
;
pharmacology
;
therapeutic use
;
Animals
;
Antibodies, Monoclonal
;
pharmacology
;
therapeutic use
;
Antineoplastic Agents
;
pharmacology
;
therapeutic use
;
Cell Survival
;
drug effects
;
Cytotoxins
;
pharmacology
;
therapeutic use
;
Drug Design
;
Humans
;
Immunoconjugates
;
chemistry
;
pharmacology
;
therapeutic use
;
Maytansine
;
pharmacology
;
therapeutic use
;
Neoplasms
;
drug therapy
;
pathology
;
Oligopeptides
;
pharmacology
;
therapeutic use
6.Effect of nifedipine on coronary and portal flow during vasopressin infusion.
Bo Yang SUH ; Hong Jin KIM ; Dong Il PARK ; Min Chul SHIM ; Koing Bo KWUN
Journal of the Korean Society of Emergency Medicine 1991;2(1):62-69
No abstract available.
Nifedipine*
;
Vasopressins*
7.Design and Implementation of Pulse-Diagnosis Ontology in Ubiquitous Computing Environment.
Dong Il YANG ; Sun Hee PARK ; Ki Hwan CHON
Journal of Korean Society of Medical Informatics 2008;14(1):45-54
OBJECTIVE: This paper proposes an ontology plan for oriental-medical service in ubiquitous computing environment. With popularization of ubiquitous computing technology, recently oriental medicine field becomes interested in oriental medicine knowledge management system and needs more systematic-scientific knowledge management and information communication. But oriental medical scientists have various standards which classify a pulse, so the information about pulse is massive. METHOD: In this paper, for more systematic-scientific knowledge management and information communication, we designed and implemented ontology using the pulse which is used as diagnosis basis in oriental medicine. by using the pulse which is classified into twenty eight division we implemented ontology based on characteristic of each pulse. We represented the pulse with OWL language and used Racer as inference engine to check errors of implemented ontology. RESULT / CONCLUSION: Given the information of the pulse-diagnosis ontology, systematic-scientific knowledge management and information communication become possible so that oriental doctors are able to provide faster and effective medical service. Furthermore, self-diagnosis and medical service will be possible at anytime and anywhere regardless of time and place. In the future research, we will implement an integrated ontology with the whole of diagnosis basis in oriental medicine based on pulse ontology implemented in this paper.
Hypogonadism
;
Knowledge Management
;
Medicine, East Asian Traditional
;
Mitochondrial Diseases
;
Ophthalmoplegia
;
Strigiformes
8.Acetabular Anateversion of Normal Korean Adult Population
Shin Youn KIM ; Dong Lyul YANG ; Il Hyung PARK ; Poong Taek KIM
The Journal of the Korean Orthopaedic Association 1996;31(5):962-967
The aim of investigation is to calculate the mean value of the acetabular anteversion of normal Korean adult after closure of growth according to different gender and sex age group, to find out any significant difference of the value of acetabular anteversion to some other variables such as age, height, weight and radiographic inclination(abduction angle) of acetabulum. Transverse pelvic computed tomography(CT) scans of 360 right hips with no known pathology were examined. The study population consisted of 12 groups by gender (male and female) and age(from third to eighth decade). The number of each group was thirty. The scanning slice nearest the middle region of the acetabulum (nearest through the center of the femoral head) on the scout film was chosen. A measuring point was assigned at the anterior edge of the acetabulum and second at the posterior edge. The line connecting these points was drawn. The angle formed by this line and the plane sagittal to the pelvis was determined as acetabular anteversion. The data analysis was run on a statistical analysis system(SAS). The mean value of acetabular anteversion 19.8±5.4 degrees(17.1±5.6 in males, 22.2±5.4 in females), it was greater significantly in females than in males (p=0.0001). The mean value of acetabular anteversion in third decade male group than the third, fourth and fifth decade group significantly(p < 0.05). The mean value of acetabular anteversion of Koreans was similar to Caucasians value. The value of acetabular anteversion was relatively releated to age. In conclusion, the acetabular anteversion of Korean females was larger than the Korean males. It was increased with aging. When we perform the total hip arthroplasty and pelvic osteotomy or reorientation procedure, we must consider the acetabular anteversion by different gender and age group.
Acetabulum
;
Adult
;
Aging
;
Arthroplasty, Replacement, Hip
;
Female
;
Hip
;
Humans
;
Male
;
Osteotomy
;
Pathology
;
Pelvis
;
Statistics as Topic
9.Minimal Change Disease Associated with Gastric Adenocarcinoma and Multiple Liver Metastasis.
Jung Il YANG ; Young Mee CHOI ; Dong Joon PARK ; Tae Hyo KIM ; Hye Jung HA ; Eun Sil JEON ; Se Ho JANG ; Soon Il JUNG
Korean Journal of Nephrology 1999;18(6):994-997
A 35-years-old man was hospitalized with gene-ralized edema. 6 months ago, the patient was operated by radical subtotal gastrectomy for advanced gastric adenocarcinoma. The patient presented with multiple liver metastasis and the massive proteinuria. The patients renal biopsy revealed minimal change nephrotic syndrome and treated with prednisolone and diuretics. The patient was improved clinical symptome and decreased 24 hours urine protein. In literature reviewed, gastric carcinoma was not associated with minimal change nephrotic syndrome. We experienced advanced gastric carcinoma associated with minimal change nephrotic syndrome, thus we report it.
Adenocarcinoma*
;
Biopsy
;
Diuretics
;
Edema
;
Gastrectomy
;
Humans
;
Liver*
;
Neoplasm Metastasis*
;
Nephrosis, Lipoid*
;
Prednisolone
;
Proteinuria
10.Comparative study on the physicochemical properties and cytocompatibility of microporous biphasic calcium phosphate ceramics as a bone graft substitute.
Kwang Bum PARK ; Jin Woo PARK ; Hyun Uk AHN ; Dong Jun YANG ; Seok Kyu CHOI ; Il Sung JANG ; Shil Il YEO ; Jo Young SUH
The Journal of the Korean Academy of Periodontology 2006;36(4):797-808
OBJECTIVE: The purpose of this study was to evaluate the physicochemical properties and cytocompatibility of microporous, spherical biphasic calcium phosphate(BCP) ceramics with a 60/40 hydroxyapatite/beta-tricalcium phosphate weight ratio for application as a bone graft substitute. MATERIALS AND METHODS: Microporous, spherical BCP granules(MGSB) were prepared and their basic characteristics were compared with commercially available BCP(MBCP; Biomatlante, France) and deproteinized bovine bone mineral(Bio-Oss; Geistlich-Pharma, Switzerland, BBP; Oscotec, Korea). Their physicochemical properties were evaluated by scanning electron microscopy, X-ray diffractometry, Fourier-transform infrared spectroscopy, inductively coupled plasma atomic emission spectrometer, and Brunauer-Emmett-Teller method. Cell viability and proliferation of MC3T3-E1 cells on different graft materials were evaluated. RESULTS: MGSB granules showed a chemical composition and crystallinity similar with those in MBCP, they showed surface structure characteristic of three dimensionally, well-interconnected micropores. The results of MTT assay showed increases in cell viablity with increasing incubation times. At 4d of incubation, MGSB, MBCP and BBP showed similar values in optical density, but Bio-Oss exhibited significantly lower optical density compared to other bone substitutes(p < 0.05). MGSB showed significantly greater cell number compared to other bone substitutes at 3, 5, and 7d of incubation(p < 0.05), which were similar with those in polystyrene culture plates. CONCLUSION: These results indicated the suitable physicochemical properties of MGSB granules for application as an effective bone graft substitute, which provided compatible environment for osteoblast cell growth. However, further detailed studies are needed to confirm its biological effects on bone formation in vivo.
Bone Substitutes
;
Calcium*
;
Cell Count
;
Cell Survival
;
Ceramics*
;
Crystallins
;
Microscopy, Electron, Scanning
;
Osteoblasts
;
Osteogenesis
;
Plasma
;
Polystyrenes
;
Spectrum Analysis
;
Switzerland
;
Transplants*