No abstract available.
Durapatite* ; Radionuclide Imaging*

Purpose: The purpose of this study is to compare the color stability of provisional restorative materials fabricated by subtractive and additive manufacturing. Materials and Methods: PMMA specimens by subtractive manufacturing and conventional method and bis-acryl specimens by additive manufacturing were fabricated each 20. After immersing specimens in the coffee solution and the wine solution, the color was measured as CIE Lab with a colorimeter weekly for 4 weeks. Color change was calculated and data were analyzed with one-way ANOVA and the Tukey multiple comparisons test (α = 0.05). Results: PMMA provisional prosthetic materials by subtractive manufacturing showed superior color stability compared to bis-acryl provisional prosthetic materials by additive manufacturing (P < 0.05), and showed similar color stability to the PMMA provisional prosthetic materials by conventional method (P > 0.05). Conclusion It is recommended to fabricate provisional restorations by subtractive manufacturing in areas where esthetics is important, such as anterior teeth, and consideration of the color stability will be required when making provisional prosthetic using additive manufacturing.

ObjectiveTo explore the effectiveness and practicability of training technique in hemiplegia.Methods313 stroke patients with hemiplegia were divided randomly into the control group and training group, and treated with integrative training technique for hemiplegia impairment during 3 months. Locomotor recovery and the performance of activities of daily living (ADL) of patients in two groups were assessed before and after one, two and three months training respectively, using Fugl-Meyer Assessment (FMA), Functional Independence Measure (FIM) and the scale of impairment in community rehabilitation.ResultsAfter treatment, FMA, FIM and the scale of impairment in community rehabilitation of the patients in the training group improved significantly ( P<0.001), the effectiveness was better than that of the control group ( P<0.05～0.001).The scales of FMA and FIM were proportional to the scale of impairment in community rehabilitation.ConclusionThe training technique for hemiplegia has ideal rehabilitation effectiveness.

Silicone gel breast implants may induce local(fibrous capsular contracture) or systemic(rheumatoid arthritis, systemic sclerosis, etc) complications. The exact mechanism of fibrous capsular contracture has not been fully understood. In the present study, we tried to find out the effect of silicone gel on the fibroblast proliferation which has been known as a major contributing factor in fibrous capsular contracture formation. In vitro, activated macrophages are known to secrete monokines which affect fibroblast proliferation and collagen synthesis. And tumour necrosis factor-alpha(TNF-alpha) and interleukin-6(IL-6), which were released by macrophages, were reported as potent stimulator of fibroblast proliferation. The goal of this study is to investigate the role of macrophages and tumour necrosis factor-alphaor interleukin-6 in the interaction of fibroblasts and silicone gel. We designed four groups, two experimental and two control, using Institute for Cancer Research(ICR) mouse peritioneal macrophage and silicone gel. For the preparation of the conditioned medium of macrophages, peritoneal macrophages were prepared and cultured for 24 hours on the silicone gel-coated and naked (not coated) surface [silicone gel-macrophage conditioned medium(SCM; experimental group) and normal polystyrene-macrophage conditioned medium(NCM; control group) respectively]. To correct the effect of 10% fetal bovine serum which was included in Rapid Prototyping and Manufacturing Institute (RPMI) 1640 medium and draw the effect only by macrophages, the RPMI 1640 medium with 10% fetal bovine serum was cultured by the same method on the silicone gel-coated and naked surface (silicone gel-macrophage free conditioned medium; SFM and normal polystyrene-macrophage free conditioned medium; NFM respectively). Each conditioned medium was added onto NIH 3T3 fibroblasts culture at a final 25% concentration of total culture medium and followed by the cultivation for 24 hours. For antibody neutralizing experiments, each conditioned medium was preincubated with polyclonal rabbit anti-mouse TNF-alpha antibody or polyclonal rat anti-mouse IL-6 antibody for 1 hour and then, conditioned medium with antibody was added to the culture medium of NIH 3T3 fibroblasts by the same method. After 24 hours cultivation, total number of viable fibroblast(cell growth), DNA synthesis and collagen synthesis of fibroblasts with each medium were measured by sulforhodamine B(SRB) assay, 3H-thymidine and 3H-proline incorporation respectively. The results were as follows: 1. In the experiment about the effect of the conditioned medium on the fibroblast activity, the experimental group(SCM), compared with the control group(NCM), showed a significant increase of the cell growth (p<0.01), a significant decrease of DNA synthesis(p<0.001), but no significant difference in the collagen synthesis. 2. In the experiment about the effect of polyclonal rabbit anti-mouse TNF-alpha antibody on the fibroblast activity, after the addition of antibody the experimental group, compared with the control group, showed a significant decrease of the cell growth(p<0.001), a significant increase of DNA synthesis(p<0.01), but no significant difference in the collagen syn thesis. 3. In the experiment about the effect of polyclonal rat anti-mouse IL-6 antibody on the fibroblast activity, after the addition of antibody the experimental group, compared with the control group, showed a significant decrease of the cell growth(p<0.001), a significant increase of DNA synthesis(p<0.0001), but no significant difference in the collagen synthesis. In conclusion, culture supernatants (conditioned medium) of peritoneal macrophages, activated by silicone gel, stimulate the NIH 3T3 fibroblast proliferation. TNF-alpha and IL-6, products of macrophage, are involved in the stimulation of NIH 3T3 fibroblast proliferation in an in vitro condition.
Animals ; Arthritis ; Breast Implants ; Collagen ; Contracture ; Culture Media, Conditioned ; DNA ; Fibroblasts* ; Interleukin-6* ; Macrophages ; Macrophages, Peritoneal* ; Mice ; Monokines ; Necrosis ; Rats ; Scleroderma, Systemic ; Silicone Gels* ; Tumor Necrosis Factor-alpha*

PURPOSE: To analyse complications and to review usefulness of large needle(18G) in percutaneous transhepatic biliary drainage(PTBD). MATERIALS AND METHODS: 46 patients underwent PTBD in 52 occassions using large needle. 44 of 46 patients had either definite or suspicious malignant biliary obstruction, and most patients were poor in general dondition. Complications were classified as acute type if developed within 30 days and as delayed type if developed after 30 days. Acute type was subdivided into severe and mild forms. RESULTS: Severe forms of complications were death(5.8%), septicemia(3.8%), and bile peritonitis(1.9%). There were not different from the rate of complication in PTBD using fine needle but the procedure was much more simple. CONCLUSION: We PTBD using large neddie is a simple and safe procedure for prompt bile decompression.
Bile ; Decompression ; Drainage* ; Humans ; Needles*

OBJECTIVES: The aim of this study is to confirm the clinical and histopathologic findings of ovarian tumors and determine the malignancy before operation. It will attribute to early diagnosis, determining direction of treatment and improving prognosis of malignant ovarian tumor. METHODS: Seven hundred sixty-five patients who had an operation for ovarian tumors in the department of Obstetrics and Gynecology of Gachon University Gil Medical Center from April 2007 to December 2009 were enrolled as subjects. A retrospective analysis of age, parity, menopausal status, preoperative CA 125, histology, ultrasound, and treatment method was done. RESULTS: 1. Among benign ovarian tumors, endometrial cyst (211 cases, 30.1%) was most common and had the highest preoperative CA 125 (76.07 U/mL). 2. Among borderline ovarian tumors, mucinous type (16 cases, 62.5%) was most common, but preoperative CA 125 was higher in serous type (144.38 U/mL) than mucinous type (82.59 U/mL). 3. Among malignant ovarian tumors, serous adenocarcinoma (14 cases, 29.8%) was most common, and undifferentiated carcinoma had the highest preoperative CA 125 (500.0 U/mL). 4. The preoperative CA 125 showed a tendency to increase in relation to stage in malignant ovarian tumors. 5. Age, preoperative CA 125, menopausal status and ultrasound finding were identified as discriminating factors for malignancy and relative risk of them were 7.19, 7.90, 5.56 and 61.43, respectively. CONCLUSION: Using the combination of age, menopausal status, preoperative CA 125 and ultrasound to diagnose ovarian tumors before the operation will be a help to early diagnosis and determining the treatment and improve prognosis.
Adenocarcinoma ; CA-125 Antigen ; Carcinoma ; Early Diagnosis ; Female ; Gynecology ; Humans ; Mucins ; Obstetrics ; Parity ; Prognosis ; Retrospective Studies

OBJECTIVE: Pathogenesis of the endometriosis is very complex and the etiology is still unclear. Our hypothesis is that there may be some difference in gene expression patterns between eutopic endometriums with or without endometriosis. In this study, we analyzed the difference of gene expression profile with cDNA microarray. METHODS: Endometrial tissues were gathered from patients with endometriosis or other benign gynecologic diseases. cDNA microarray technique was applied to screen the different gene expression profiles from early and late secretory phase endometria of those two groups. Each three mRNA samples isolated from early and late secretory phase of endometrial tissues of control were pooled and used as master controls and labeled with Cy3-dUTP. Then the differences of gene expression pattern were screened by comparing eutopic endometria with endometriosis, which were labeled with Cy5-dUTP. Fluorescent labeled probes were hybridized on a microarray of 4,800 human genes. RESULTS: Twelve genes were consistently overexpressed in the endometrium of endometriosis such as ATP synthase H transporting F1 (ATP5B), eukaryotic translation elongation factor 1, isocitrate dehydrogenase 1 (NADP+), mitochondrial ribosomal protein L3, ATP synthase H+ transporting (ATP5C1) and TNF alpha factor. Eleven genes were consistently down-regulated in the endometriosis samples. Many extracellular matrix protein genes (decorin, lumican, EGF-containing fibulin-like extracellular matrix protein 1, fibulin 5, and matrix Gla protein) and protease/protease inhibitors (serine proteinase inhibitor, matrix metalloproteinase 2, tissue inhibitor of metalloproteinase 1), and insulin like growth factor II associated protein were included. Expression patterns of selected eight genes from the cDNA microarray were confirmed by quantitative RT-PCR or real time RT-PCR. CONCLUSION: The result of this analysis supports the hypothesis that the endometrium from patients with endometriosis has distinct gene expression profile from control endometrium without endometriosis.
Adenosine Triphosphate ; Endometriosis* ; Endometrium* ; Extracellular Matrix ; Female ; Gene Expression* ; Genital Diseases, Female ; Humans ; Insulin-Like Growth Factor II ; Isocitrate Dehydrogenase ; Matrix Metalloproteinase 2 ; Oligonucleotide Array Sequence Analysis ; Peptide Elongation Factor 1 ; Ribosomal Proteins ; RNA, Messenger ; Transcriptome*

PURPOSE: The purpose of this study is to analyze the CT features of the cystic masses in the neck and to review differential diagnosis. MATERIALS AND METHODS: We retrospectively reviewed and analyzed the CT findings of 22 histopathologically proved, cystic neck masses in regard to the location in fascial plane and relationship with adjacent organ. RESULTS: Of 22 cases, ten congenital cysts two ranulas, seven inflammatory lesions, and three solid tumors were includded. Ten congenital cystic masses were located in typical locations as branchial cleft cyst(5) in mandibular angle, thyroglossal duct cyst(3) in visceral space embeded within the strap muscles, cystic hygroma(1) and cavernous hemangioma(1) in posterior cervical space with insinuating appearance. Two cases of ranula included one simple ranula localized in sublingual space and a plunging ranula extending to adjacent submandibular space. Seven cases of inflammatory lesions were characterized by multispatial locations and good contrast-enhancement of walls and adjacent tissue. Solid masses of low density mimicking cyst were two pleomorphic adenomas of submandibular gland and one neurilemmoma. CONCLUSION: It is considered that thorough analysis of the CT findings with attention to typical location, CT appearance, and the relationship with the adjacent structures usually leads to the correct diagnosis.
Adenoma, Pleomorphic ; Branchial Region ; Diagnosis ; Diagnosis, Differential* ; Muscles ; Neck* ; Neurilemmoma ; Ranula ; Retrospective Studies ; Submandibular Gland

No abstract available.
Lymphohistiocytosis, Hemophagocytic*

Purpose: The post-operative quality of life (QoL) is a significant concern for patients undergoing gastrectomy. Unlike subtotal gastrectomy, the detailed aspects of QoL involving the ability to perform everyday activities that reflect physical, psychological, and social well-being; and satisfaction with levels of functioning and control of the disease after total gastrectomy remain poorly investigated. Materials and Methods: We enrolled 170 patients who underwent total gastrectomy for gastric carcinoma and completed the European Organisation for Research and Treatment of Cancer (EORTC) Quality-of-Life questionnaires (QLQ) C30 and STO22 preoperatively and post-operatively at 1, 6, and 12 months. We investigated the QoL change in terms of the minimally important difference (MID), which refers to a score change patients would perceive as clinically important (effect size >0.5). Results: At 1-month post-surgery, MID in global health, physical, social, role, emotional, and cognitive functions was observed at 44.0%, 68.0%, 42.7%, 38.7%, 32.0%, and 16.0% respectively. Of QLQ-C30 symptoms, MID was frequently observed in appetite (52.9%). Of the QLQ-STO22 symptoms, MID was frequently observed in eating restrictions (74.1%), dysphagia (63.5%), pain (51.8%), and anxiety (50.6%). At 12 months post-surgery, MID in global health, physical, role, cognitive, social, and emotional functions was 32.9%, 58.8%, 42.4%, 40.0%, 36.5%, and 17.6%, respectively. Of QLQ-C30 symptoms, MID was frequently observed in diarrhea (52.9%). Of the QLQ-STO22 symptoms, MID was frequently observed in eating restrictions (63.5%), dysphagia (52.9%), body image (55.3%), pain (55.3%), and anxiety (51.8%). Male sex, comorbidity, D2 lymphadenectomy, and post-operative morbidity were associated with MID in global health at 12 months post-surgery. Conclusion This study provides information about the detailed aspects of impairment in various functions and symptoms of QoL after total gastrectomy. This information can be used to develop a tailor-made management plan for QoL.