No abstract available.
Female ; Mammaplasty*

No abstract available.
Female ; Mammaplasty*

In order to assess the biocompatibility of domestic dynamic compression plates and screws manufactured at KAIST (Korea Advanced Institute of Science and Technclogy), hematological, serological, histological, and metallurgical studies were carried out on sixty rabbits through thirty-two weeks. The rabbits were divided into two groups, group I: thirty rabbits for KAIST plates and screws, group II: thirty rabbits for Osteo plates and screws. The plate and screws were fixed on the fixed tibial shaft. All the resulg of hematological, serological, histological, and metallurgical study revealed that there were no meaningful differences between the two groups. This, in fact, enco.urages us to use domestic KAIST plates and screws clinically and to develop more complicated designs including total joint replacement system.
Animal Experimentation ; Animals ; Joints ; Rabbits ; Stainless Steel

The cell cycle is composed of G1, S, G2 and M phase. The transitions between different phases are regulated at checkpoint such as Start(restriction), S phase and mitotic checkpoint. These checkpoints are regulated by specific cyclins and Cdks(cyclin-dependent kinases). Especially, Start checkpoint in late G1 is though to be very important in control of cell cycle. In this study, it was shown various CDKN2(p16ink4A) alteration, including deletions, mutations, down regulations, and performed differential expression of p53, Cdk4, PCNA and pRb in stomach cancer tissues. 1. The frequency of CDKN2 mutations was not observed in the 19 primary stomach cancer tissues. In contrast to the mutations of CDKN2, mRNA levels was showed by Northern blot analysis that expression of CDKN2 was absent or decreased in 10 of the 19(53%) primary stomach adenocarcinoma. Western blot analysis was performed to determine the differential expression of p53, Cdk4, PCNA related to Start checkpoint. Overexpression of p53 was shown 38%, Cdk4 was expressed in all each specimens, and expression of PCNA was not shown. 2. As the other method to determine the differential expression of p53, Cdk4, PCNA and pRb, immunohistochemical analyses were performed on each 14 formalin-fixed and paraffin embedded tumor tissues of stomach adenocarcinoma. p53 overexpression was showed to clear nuclear staining only in tumor cells not in nonneoplastic cells. In staining for cdk4, the tumor was considered to be cdk4 positive if there was nuclear staining in tumor cells, regardless of cytoplasmic staining. PCNA staining for carcinoma tissues showed more intense nuclear staining in tumor cells than in nonneoplastic cells. pRb overexpression was show in tumor cells. Significant differences were observed in the expression of the proteins among the cancers from different anatomic site. Overexpression of adenocarcinomas had high rate of p53(57.1%) and pRb(71.4% ), and low late of cdk4(7.1% ) and PCNA(14.3% ), As these results, deletion of CDKN2 gene in human stomach cancer was not observed but mRNA expression was down regulated in restriction checkpoint, G1 phase. Inactivation of the CDKN2 gene due to hypermethylation may play an important role in development of cancer. And one of the abnormalities in p53, Cdk4, PCNA or pRb function occurs very common in various cancers, especially oral adenocarcinoma, osteosarcoma and squemous cell carcinoma, suggest that components in restriction checkpoint also play an critical role in the carcinogenesis and progression of cancers.
Adenocarcinoma ; Blotting, Northern ; Blotting, Western ; Carcinogenesis* ; Cell Cycle ; Cell Division ; Cyclins ; Cytoplasm ; G1 Phase Cell Cycle Checkpoints ; Genes, p16 ; Humans ; M Phase Cell Cycle Checkpoints ; Osteosarcoma ; Paraffin ; Proliferating Cell Nuclear Antigen ; RNA, Messenger ; S Phase ; Social Control, Formal ; Stomach ; Stomach Neoplasms

No abstract available.
Brain Mapping* ; Evoked Potentials, Visual* ; Schizophrenia*

No abstract available.
Colon* ; Diverticulum*

No abstract available.
Colon* ; Diverticulum*

BACKGROUND: Various surgical techniques are used for the cure of hemorrhoid according to the extent of disease and severity of symptom. Purpose : We compared the postoperative clinical course after submucosal hemorrhoidectomy and ligation and excision of hemorrhoids. MATERIAL AND METHODS: Between February 1995 and May 1997, 221 patients underwent submucosal hemorrhoidectomy and 111 patients underwent ligation and excision of hemorrhoids at the Department of Surgery, Eulji General Hospital. We compared the hospital course and postoperative complications in two group. RESULTS: For submucosal hemorrhoidectomy group, mean operation time was 38 minutes, the improvement of postoperative pain, is based on no needs of analgesics after 48 hours of postoperation, was seen in 115 patients(52.0%), wound healing took 19.5 days in average, and mean hospital stay was 6.4 days. For ligation and excision group, these findings were mean operation time 21 minutes, the improvement of postoperative pain in 47 patients(42.3%), wound healing 25.4 days, and hospital stay 7.2 days. Postoperative complications such as skin tag, edema, and were more common in submucosal hemorrhoidectomy group. But anal fissure, stenosis were more frequent in ligation and excision group, although they did not occur later. CONCLUSION: We think that submucosal hemorrhoidectomy is a better method than ligation and excision in respect of postoperative course and complications.
Analgesics ; Constriction, Pathologic ; Edema ; Fissure in Ano ; Hemorrhoidectomy ; Hemorrhoids* ; Hospitals, General ; Humans ; Length of Stay ; Ligation ; Pain, Postoperative ; Postoperative Complications ; Skin ; Wound Healing

No abstract available.
Coffee* ; Denture Bases* ; Dentures*

BACKGROUND: Although palmoplantar epidermal cysts have long been associated with develop ment following implantation of an epidermal fragment as a result of a penetrating or blunt injury, the pathogenic mechanism is still not fully understood. Since 1987, many cases have been reported in which human papillomavirus(HPV) could be associated with palmoplantar epidermal cysts. OBJECTIVE: In this study, we evaluated the clinicopathological findings of palmoplantar epidermal cysts and investigated them for the presence of HPV in order to examine the role of HPV in the pathogenesis of this disorder in Korea. METHODS: The clinical, histological, immunohistochemical studies were performed on seven cases of plantar cysts, and two cases of palmar cysts. RESULTS: No previous trauma history was seen. Histopathologically, parakeratotic nuclei, or vacuolar strutures within the keratinous mass in the cyst cavity were found. However, we could not find intracytoplasirnic eosinophilic bodies in the wall, the cyst content, or the overlying epidermis. The dyskeratotic keratinocytes were observed in 3 cases. Papillomavirus common antigens were not detected by immunohissochemical staining. CONCLUSIONS: Palmoplantar epidermal cysts in Korea have some different histological features compared to those of HPV 60-associated cases in Japan and we could not detect the immunohistochemical evidence of HPV infection in our cases.
Eosinophils ; Epidermal Cyst* ; Epidermis ; Humans ; Japan ; Keratinocytes ; Korea ; Wounds, Nonpenetrating