1.99mTc-MDP uptake in hydroxyapatite ocular implants.
Korean Journal of Nuclear Medicine 1992;26(2):396-400
No abstract available.
Durapatite*
;
Technetium Tc 99m Medronate*
2.Reconstruction of wide and long skin defects using lateral thigh free flap.
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(5):912-920
Plastic surgeons have frequently encountered wide and long skin defects which require flap coverage. These include defects that occur after radical tumor resection of the head and neck region, release of severe bum scar contracture, and defects with exposure of the bone or tendons in upper and lower extremities. Lateral thigh fasciocutaneous flap, first introduced by Baek in 1983, has a long and wide skin territory. By using this flap, we performed 6 cases of burn scar contractures and 2 cases of head and neck cancer defects. In the flap elevation, it is not necessary to change the patient's position, therefore, the two-team approach shortens the operating time. The donor site can be closed primarily if the width of flap is not over 8 cm. The donor scar of the thigh is easily concealed. The lateral thigh flap can also be used as a composite or sensate flap. We conclude that, due to the lateral thigh flap being a thin and pliale fasciocutaneous flap which has a long and wide skin territory, it is very useful for reconstruction of large skin defects.
Burns
;
Cicatrix
;
Contracture
;
Free Tissue Flaps*
;
Head
;
Head and Neck Neoplasms
;
Humans
;
Lower Extremity
;
Neck
;
Skin*
;
Tendons
;
Thigh*
;
Tissue Donors
3.Comparison of functional images obtained by radionuclide angiocardiography and gated blood pool scan.
Korean Journal of Nuclear Medicine 1991;25(2):186-191
No abstract available.
Angiocardiography*
4.Genotoxicity of therapeutic dose of I analyzed by micronuclei test in the mouse bone marrow.
Korean Journal of Nuclear Medicine 1993;27(1):112-117
No abstract available.
Animals
;
Bone Marrow*
;
Mice*
5.A Comparison Study of Radiostrontium Chelation with Chitin, Chitosan, EDTA and DTPA.
Hee Seung BOM ; Young Ho KIM ; Ji Yeul KIM
Korean Journal of Nuclear Medicine 1998;32(4):391-395
PURPOSE: Chitin and chitosan are nontoxic natural chelators that chelate radiostrontium effectively. The purpose of this study was to compare radiostrontium chelation of chitin and chitosan with that of well known chemical chelators, namely EDTA and DTPA. MATERIALS AND METHODS: The chelaton rates of chitin, chitosan, EDTA and DTPA were compared using a column chromatography method (Sephadex G-25M, Sweden). Three kinds of chitins and four kinds of chitosans were used. All of them were water soloble. RESULTS: Phosphated chitosan showed the highest chelation yield of more than 97% at pH 7. All of chitins, chitosans, EDTA and DTPA showed chelation yield of more than 90% independent of varing pH level. CONCLUSION: Chitin and chitosan have similar chelation rate as compared with EDTA and DTPA.
Chelating Agents
;
Chitin*
;
Chitosan*
;
Chromatography
;
Edetic Acid*
;
Hydrogen-Ion Concentration
;
Pentetic Acid*
6.Effect of chitosan on the elimination of intraperitoneally administered radiostrontium(Sr-85).
Ji Yeul KIM ; Kwang Yoon KIM ; Hee Seung BOM
Korean Journal of Nuclear Medicine 1993;27(2):293-297
No abstract available.
Chitosan*
7.A Case of Omphalith.
Bom Seock HA ; Inn Ki CHUN ; Young Pio KIM
Korean Journal of Dermatology 1989;27(3):325-328
Omphalith generally consists of keratinous materials and sebum. It gradually forms a stone-like hard, dark brown to a black mass in elderly persons with deep umbilical depression and not clean umbilicus. A 75 years old male noticed a brownish black nodule on the umbilical depression 2 weeks ago. He did not try to remove it. This nodule gradually became to project from umbilical depression accompanied with intermittent pain. Removed specimen was brownish black stonelike on projecting polypoid lesion, but in umbilical depression, yellowish brown and not so hard. Histopathological examination showed a small quantity of melanin granules, but no nuclear components of cells.
Aged
;
Depression
;
Humans
;
Male
;
Melanins
;
Sebum
;
Umbilicus
8.Studies on the Radiation Induced Apoptosis by Morphological and Biochemical Analysis in A431 Cells.
Ji Yeul KIM ; Hee Seung BOM ; Keun Hee CHOI
Korean Journal of Nuclear Medicine 1999;33(3):306-315
PURPOSE: We performed this study to evaluate the process of radiation induced apoptosis in A431 skin epithelial cancer cell line. MATERIALS AND METHODS: Low to high dose radiation (0, 2, 5, 10, 25 Gy) was given to A431 cells by Cs-137 cell irradiator. Apoptosis was evaluated by cell morphology, dye exclusion test, and DNA laddering. RESULTS: Cell viability decreased as the radiation dose increased. Number of apoptotic bodies increased as radiation dose increased. It increased most significantly at 12 hours after irradiation. Lactate dehydrogenase activity in culture medium increased according to radiation dose and time after irradiation. CONCLUSION:: Radiation-induced apoptosis which was the main course of cell death in A431 cells could be analyzed quantitatively by counting apoptotic bodies under microscope. Apoptosis increased as radiation dose increased.
Apoptosis*
;
Cell Death
;
Cell Line
;
Cell Survival
;
DNA
;
L-Lactate Dehydrogenase
;
Skin
9.Clinical and Epidemiological Studies of Cysticercosis.
Young Pio KIM ; Inn Ki CHUN ; Bom Seock HA
Korean Journal of Dermatology 1989;27(5):521-529
Taenia aolium is responsible for producing human intestinal infection with the tapeworm (taeniasis) and the lodging of the larval stage (Cysticercua cellulosae) in numerous organs. especially subcutaneous tissue with the prodution
Cestoda
;
Cysticercosis*
;
Epidemiologic Studies*
;
Humans
;
Subcutaneous Tissue
;
Taenia
10.The Immunohistochemical Study of Oncogene and Tumor Suppressor Gene Proteins on Bone Tumor.
Myung Ku KIM ; Bom Woo YEOM ; Jung Ho LEE
The Journal of the Korean Orthopaedic Association 1997;32(3):623-631
The discovery of oncogenes and tumor suppressor genes have made it possible to partly understand the mechanism of cancer development. It is generally accepted that the cancer development is caused by specific gene alterations and now more than 100 oncogenes and suppressor genes are known to be involved in human carcinogenesis. However, there are only a few reports about oncogene expression on bone tumors. The author carried out an immunohistochemical study to reveal the oncogene and suppressor genes on carcinogenesis of bone tumors using antibodies against c-myc, c-H-ras, p53 and EGF. In 32 cases of osteochondrorma, EGF, p53 and c-myc antisera revealed positive reaction in 4 (12.5%), 2 (6.3%) and 7 (21.9%) cases, and, in 4 cases of chondrosarcoma, c-myc antisera revealed positive reaction in 2 (50%) cases. In 21 cases of osteosarcoma, the positive reaction of p53 was noted in 10 (47.6%) cases and that of c-myc in 3 (14.3%) cases. In 14 cases of fibrous bone tumors, there are only 2 (14.3%) cases of positive reaction with p53. These results suggest some roles of the p53 and c-myc genes in osteosarcoma development and c-myc gene in osteochondroma and chondrosarcoma development.
Antibodies
;
Carcinogenesis
;
Chondrosarcoma
;
Epidermal Growth Factor
;
Genes, myc
;
Genes, Suppressor
;
Genes, Tumor Suppressor*
;
Humans
;
Immune Sera
;
Oncogene Proteins
;
Oncogenes*
;
Osteochondroma
;
Osteosarcoma