BACKGROUND: Vascular dementia is common cause of dementia, second to the dementia of Alzheimer desease. However in Asia and many developing countries, the incidence of vascular dementia exceeds that of Alzheimer's disease. Though many stroke-related factors related the nature of vascular injury, e.g. infarction and hemorrhage, have not assessed yet. Clarifying the difference of electroencephalograpy and clinical prognosis between infarction and hemorrhage, the aim of this study was to elucidate the role of nature of vascular injury. METHODS: to reduce confounding factors, the study population was restricted to the patients of single hemispheric striatocapsular infarction and hemorrhage saving cortex. On admission, we checked the KMMSE and FIM scores and using quantified EEG, we analyzed occipital peak frequency and the relative background alpha, theta and delta spectra power taken from 16 derivations by averaging twenty-2 -sec epoch in infarction, hemorrhage patients and elderly controls. After 6 months follow up, we compare the MMSE, FIM score between infarction and hemorrhage group. RESULTS: 1) Compared with infarction group, hemorrhage groups had a significantly bilateral lower occipital peak freqauency and background bilateral alpha spectra power. 2) In hemorrhage group, there is lower tendency in K-MMSE after 6 month follow up compared to infarction group. CONCLUSION: This study suggests that hemorrhage show more bilateral electrophysiological dysfunction than infarction group and possible grave prognosis for vascular dementia compared to infarction group.
Aged ; Alzheimer Disease ; Asia ; Dementia ; Dementia, Vascular ; Developing Countries ; Electroencephalography* ; Follow-Up Studies ; Hemorrhage* ; Humans ; Incidence ; Infarction* ; Prognosis* ; Vascular System Injuries

No abstract available.
Child* ; Humans ; Shigella* ; Vaginitis*

Recent advances in cell culture and tissue engineering permit the successful treatment of deep articular defects with autologous chondrocyte transplantation. While chondrocyte culturing from articular cartilage is commonplace, in vitro growth of chondrocytes from temporomandibular joint fibrocartilage has not been defined. Likewise, the concept of autologous chondrocyte transplantation has not been applied to the temporomandibular joint. Since fibrocartilage differs structurally and functionally from articular cartilage, an effective culturing method for this tissue is essential as well. The ultimate goal of this project is to enable the use of autologous temporomandibular joint chondrocyte transplantation for the regeneration of damaged or missing components of the joint. The aim of this pilot study is to develop an effective cell culturing technique for chondrocytes harvested from the temporomandibular joint disc of dogs. Cartilage of the temporomandibular joint disc of drug-free mongrel dogs was dissected, dissociated, and centrifuged for chondrocyte collection. Blood specimen was collected from the same animal to produce the autologous serum. Chondrocytes were then dispersed in 24-well plates and incubated in one of four media, DMEM (Dulbecco's modified Eagle's medium), Ham's F-12, DMEM/F-12, or Iscove's MDM(modified Dulbecco's medium). Each medium was also mixed with either 10% fetal bovine serum or 10% autologous serum. Temporomandibular joint disc chondrocytic proliferation was tested in all the culture media with sera on the fifth day. The initial plating count was held constant throughout at 1 x 10(4) cells/well and eight samples were evaluated in each culture. The results demonstrated that fetal bovine serum worked much better than autologous serum in all evaluated media and that DMEM/F-12 mixed with 10% fetal bovine serum was the most optimal culture condition for expansion of temporomandibular joint disc chondrocytes.
Animals ; Cartilage ; Cartilage, Articular ; Cell Culture Techniques ; Chondrocytes ; Culture Media ; Dogs ; Fibrocartilage ; Joints ; Pilot Projects ; Regeneration ; Temporomandibular Joint Disc* ; Temporomandibular Joint* ; Tissue Engineering

Ovarian carcinoma is a serious disease in women. Some reports revealed all-trans-retinoic acid (tRA) inhibited the proliferation of ovarian carcinoma cell lines and induced apoptosis. The aim of this study was to evaluate the anticancer and apoptotic effects of tRA and the expression of the retinoic acid receptor (RAR) alpha, beta, gamma, p53, bcl-2, and c-myc genes on the ovarian carcinoma cell lines, NIH OVCAR3 and SKOV3. In both cell lines, the proliferation of tumor cells was inhibited and characteristic morphologic patterns of apoptosis were shown after treatment of tRA. The number of apoptotic cells and the percentage of apoptosis were increased after treatment of tRA. The gel electrophoresis revealed the DNA ladder pattern in the NIH OVCAR3. Gene expressions were observed using northern blotting. There was no RARalpha expression in both cell lines. In NIH OVCAR3, there was no changes in the expression of RARbeta and bcl-2 gene. The RARgamma gene expression of tRA treated group was slightly increased, but p53 gene expression was decreased, and c-myc gene was not expressed. In SKOV3, the expressions of RARbeta, gamma, and p53 genes were increased and that of bcl-2 was decreased in the tRA treated group. There was no change in c-myc gene expression. These results suggest tRA has anticancer and apoptotic effect on both ovarian carcinoma cell lines. RARbeta, RARgamma, bcl-2, and p53 gene expressions were correlated with these effects of tRA on SKOV3 but not on NIH OVCAR3.
Apoptosis* ; Blotting, Northern ; Cell Line* ; DNA ; Electrophoresis ; Female ; Gene Expression ; Genes, bcl-2 ; Genes, myc ; Genes, p53 ; Humans* ; Receptors, Retinoic Acid ; Tretinoin*

Microvascular anastomosis has become an essential technique in reconstructive surgery. A lot of techniques have been developed to improve patency rate and reduce operation time. But interrupted suture technique is still most widely used because of limited indication and inconvenience of other methods. A comparative study was undertaken to evaluate new microvasular anastomosis technique using fibrin glue. In this report 40 femoral arteries of Sprague-Dawley rats were anastomosed by utilizing four stay sutures which were placed 90 degrees apart and the intervals covered with fibrin glue, and by conventional eight suture method served as control. The patency rate(immediate postoperative, postoperative two weeks), time needed for vascular anastomosis, and microscopic evaluation were compared to those of conventional microvascular suture technique. Postoperative patency rate was 100% and 85% by fibrin glue technique compared to 100% and 90% by conventional technique at immediate postoperative and postoperative two weeks. Less time consumed with fibrin glue technique by 16 minutes compared to conventional technique by 21 minutes. Microscopically reendothelization was complete with smooth and less injured inner lining and also less inflammatory response by fibrin glue technique compared to conventional technique.
Femoral Artery ; Fibrin Tissue Adhesive* ; Fibrin* ; Rats, Sprague-Dawley ; Suture Techniques ; Sutures

It has been claimed that CNS lymphoma, a rare neoplasm accounting for only a small fraction of malignant brain tumors, occurs with increasing frequency in immunologically normal as well as immunocompromised individuals. We investigated the prognostic value of Ki-67 index, p53, and bcl-2 oncoprotein expression in relation to the clinicopathological parameters in the primary CNS lymphoma patients. The tumors were graded by Kiel classification and the Working formulation and included 33 high-grade, 4 intermediate-grade, and 5 low-grade lymphomas. The phenotype was determined in 38 cases: 30 were B cell type and 8 were T cell type. All cases displayed variable degrees of nuclear Ki-67 staining from 1.0% to 92.0% (mean 51.1%). A highly significant correlation was established between the proportion of Ki-67 positive cells and the classification into grades (p=0.0002) and phenotypes (p=0.0002). Overexpression of p53 and bcl-2 protein was found in 37.1% and 51.4% of 35 patients, respectively. And p53 expression was significantly increased in B cell type (p=0.02). On Kaplan-Meier survival curve, the phenotype, grade of tumors, and p53 and bcl-2 protein expression were not correlated with overall survival. On multivariate analyses, overall survival was independently influenced by Ki-67 index. In conclusion, it is suggested that Ki-67 proliferating index is the most important marker for predicting biologic behavior of the primary CNS lymphoma.
Brain Neoplasms ; Central Nervous System* ; Classification ; Humans ; Lymphoma* ; Lymphoma, Non-Hodgkin ; Multivariate Analysis ; Phenotype

Purpose: To evaluate surgical outcome and effectiveness of inferior oblique (IO) myectomy on unilateral superior oblique palsy (SOP) as a primary treatment. Methods: This study is a retrospective review of the medical records of 99 patients who had undergone IO myectomy due to SOP as a first-line treatment. Sixty-five patients with hyperdeviation of 15 prism diopters (PD) or less were categorized into group 1, 22 patients with hyperdeviation between 16 PD to 20 PD into group 2, and 12 patients with hyperdeviation higher than 20 PD into group 3. Preoperative hyperdeviation, postoperative hyperdeviation, and improvement of head tilting were then compared between the 3 groups. Surgery was determined to be successful when the post-op residual hyperdeviation is less than 5 PD, or when the improvement of hyperdeviation and head tilting was noted, for the patients who had preoperative deviation less than 5 PD, and without hypercorrection. Results: All groups showed significant improvement of hyperdeviation, and the amount of correction was larger in group with larger preoperative hyperdeviation. 80.3%, 95.0%, and 90.9% of patients showed improvement of head tiling and success rate was 87.7%, 77.3%, and 50.0% in group 1, 2, and 3 respectively. Group 1 and 2, group 2 and 3 had no significant difference in success rate but only group 1 and 3 had significant difference. Conclusions Considering success rate with improvement of head position, self-titrating and possibility of overcorrection, IO myectomy could be an effective option as a first-line surgical treatment for unilateral SOP with hyperdeviation of 20 PD or less. However, due to a 50% success rate in patients with hyperdeviation larger than 20 PD, a secondary operation must be considered following IO myectomy, or a two-muscle procedure must be considered as a primary treatment.

A 66-year-old female patient had a firm, non-tender, dome shaped mass on the scalp. The lesion had enlarged slowly for 2 years, and measured about 4 × 6 cm. The histologic finding of the skin biopsy specimen demonstrated an infiltration of immature plasma cells in the dermis, which express monoclonal cytoplasmic lambda light chain by immunohistochemical stainings, and staging work-up after the biopsy revealed no evidence of disease in other foci. The mass on the scalp was treated successfully by radiation therapy, with the diagnosis of primary cutaneous plasmacytoma.
Aged ; Biopsy ; Cytoplasm ; Dermis ; Diagnosis ; Female ; Humans ; Plasma Cells ; Plasmacytoma* ; Scalp ; Skin

There had been a continuous evolution of lymphoma classification and recently a Revised European-American Lymphoma Classification was proposed by the International Lymphoma Study Group. This new classification often requires information on immunophenotypic and molecular biologic markers in addition to the usual histologic findings. Recent advances in the production of commercially available monoclonal antibodies reactive on formalin-fixed paraffin-embedded tissues provide us a great help to classify the non-Hodgkin's lymphoma. We have analyzed 31 low grade B-cell lymphomas by the schemes proposed by the International Lymphoma Study Group using antibodies to CD3, CD5, CD20, CD23, CD43, cyclin D1, and bcl-2 protein, and have analyzed the immunophenotypic features. Among 31 low grade B-cell lymphomas, 8 small lymphocytic lymphomas, 5 mantle cell lymphomas, 7 follicle center lymphomas (2 grade I, 3 grade II, and 2 grade III), and 11 marginal zone B-cell lymphomas (all of which were extranodal) were identified. Among 8 small lymphocytic lymphomas, 5 cases were positive for CD5; 6 cases were positive for CD23; 7 cases were positive for CD43; all 8 cases were negative for cyclin D1; and 7 cases were positive for bcl-2. Among 5 mantle cell lymphomas, 4 cases were positive for CD5 and CD43; all five cases were negative for CD23; 4 cases were positive for cyclin D1 and bcl-2. All 7 follicle center lymphomas were negative for CD5, CD43 and cyclin D1 and 2 cases were positive for CD23; and 6 cases were positive for bcl-2. All marginal zone B-cell lymphomas were negative for CD5, CD23 and cyclin D1; 3 cases were positive for CD43 and 9 cases were positive for bcl-2. Diagnostic utility for CD5 antigen detection on paraffin embedded tissue has a limitation due to weak antigen expression in tumor cells of B-cell lymphomas; however, still be useful in differentiating small lymphocytic lymphoma and mantle cell lymphoma from other B-cell lymphomas when applied in conjunction with CD43. CD23, CD43, and cyclin D1 appear to be of great help in differentiating subgroups of low grade B-cell lymphomas. Bcl-2, as known, is found to be useful to rule out reactive follicular hyperplasia.
Antibodies ; Antibodies, Monoclonal ; Antigens, CD5 ; B-Lymphocytes* ; Biomarkers ; Classification ; Cyclin D1 ; Hyperplasia ; Immunohistochemistry* ; Leukemia, Lymphocytic, Chronic, B-Cell ; Lymphoma ; Lymphoma, B-Cell* ; Lymphoma, B-Cell, Marginal Zone ; Lymphoma, Mantle-Cell ; Lymphoma, Non-Hodgkin ; Paraffin*

No abstract available.
Animals ; Female ; Menstrual Cycle* ; Mice* ; Zygote*