PURPOSE: To examine the expression of Connective Tissue Growth Factor (CTGF) in osteosarcoma and to evaluate its role in osteosarcoma invasion and proliferation. MATERIALS AND METHODS: The mRNA expression of CTGF from 23 patient-derived osteosarcoma cell lines was examined, and the role of CTGF in cell invasion and proliferation was examined using siRNA transfection. RESULTS: The over-expression of CTGF mRNA was observed in 17 cell lines (74%). CTGF-specific siRNA transfection into SaOS-2 and MG63 cell lines resulted in efficient knockdown of CTGF expression on Western blot analysis. siRNA transfected cells showed decreased migration on Matrigel invasion assay and decreased cell proliferation on WST-1 assay. CONCLUSION: These results indicated that the CTGF expression may play an important role in osteosarcoma progression, and may be a therapeutic target of osteosarcoma.
Blotting, Western ; Cell Line ; Cell Proliferation ; Connective Tissue Growth Factor ; Osteosarcoma* ; RNA, Messenger ; RNA, Small Interfering ; Transfection

PURPOSE: The purpose of this study was to identify effects of a refresher program for inactive nurses on nursing professionalism and nursing clinical self-efficacy. METHODS: A pre-experimental design with one group pretest-posttest was used. The refresher program consisted of 150 hours and was provided to inactive nurses who were recruited from a refresher program at S institute. Eighty inactive nurses participated in the study. Data were collected between June and November 2009. To evaluate the effectiveness of the refresher program, researchers explored participants' nursing professionalism and nursing clinical self-efficacy through self-evaluation questionnaire before and after the refresher program. RESULTS: The refresher program was effective in increasing nursing clinical self-efficacy for inactive nurses (p<.001). However, no significant increase was found in nursing professionalism after completing the program. CONCLUSION: The refresher program had a positive impact on increasing the nursing clinical self-efficacy for inactive nurses.
Diagnostic Self Evaluation ; Surveys and Questionnaires

PURPOSE: The purpose of this descriptive study was to identify the impact of workplace bullying and LMX (Leader-Member Exchange) on turnover intention among nurses. METHODS: The participants were 364 nurses from the Seoul metropolitan area who were attending a continuing education program. A structured questionnaire was used for data collection and data were analyzed using the SPSS/Window program. Hierarchical multiple regression analysis was performed to verify the effect of variables on turnover intention. RESULTS: Higher workplace bullying was associated with higher turnover intention. Workplace bullying was negatively correlated with leader-member exchange. The most influential factors for turnover intention were LMX (beta=-7.22, p<.001), work load (beta=2.96, p=.003), and workplace bullying (beta=2.64, p=.009). These factors accounted for 28% of the variance in turnover intention. CONCLUSION: The study results indicate that there is need to develop strategies to prevent workplace bullying and cultivate a good relationship between nursing managers and nurses to lower nurses' turnover intention.
Bullying* ; Data Collection ; Education, Continuing ; Intention* ; Leadership ; Nursing ; Surveys and Questionnaires ; Regression Analysis ; Seoul

PURPOSE: The purpose of this study was to compare the qualities of the four different processing chemicals(solutions). MATERIALS AND METHODS: With EP 21 films(Ektaspeed plus film, Kodak Co., USA), nine unexposed and nine exposed films of a step wedge were processed utilizing automatic film processor(XR 24, Durr Co., Germany) for 5 days. During 5 days, the total number of processed films including out-patient's intraoral films were about 400-500 for each brand. Base plus fog density, film density, contrast of processed films were measured with densitometer(model 07-443 digital densitometer, Victoreen Co., USA). These measurements were analyzed for comparison. RESULTS: The results were as follows, 1. For the base plus fog density, there was significant difference among the four chemicals (p<0.05). The sequence of the base plus fog densities was in ascending order by Kodak, X-dol 90, Agfa and Konica. 2. For the film density, all chemicals showed useful range of photographic densities(0.25-2.5). The sequence of the film densities was in ascending order by Kodak, X-dol 90, Konica and Agfa. But there was no statistically significant difference of film density between X-dol and Kodak (p<0.05). 3. The sequence of the contrasts was in ascending order by Konica, X-dol 90, Kodak and Agfa. But there was no statistically significant difference of contrast between X-dol and Konica (p<0.05). CONCLUSION: These results indicated that the four processing chemicals had the clinically useful film density and contrast, but only Kodak processing chemical had useful base plus fog density.
Dentistry* ; Weather

Bullous pemphigoid(BP) and herpes gestationis(HG) are subepidermal bullous diseases which show clinical and immunological similarities. Both diseases show immune deposits along the basement membrane zone and their autoantibodies bind a common antigenic site within the non-collagenous stretch of the 180 kDa BPAG2 ectodomain. Besides its association with pregnancy, HG has some characteristic features that distinguish it from BP. The serum of patients with HG often contains an IgG that avidly fixes complement, and showes IgG1 subclass predominance. We report here two cases of non-pregnant young women presenting clinical and histological features of bullous pemphigoid or herpes gestationis. The immunopathology, IgG subtyping and immunoblotting studies showed that the autoantibodies in the patients were the characteristic ones of herpes gestationis. The patients might be a subtype of BP that have characteristics of autoantibodies of HG patients.
Autoantibodies* ; Basement Membrane ; Complement System Proteins ; Female ; Humans ; Immunoblotting ; Immunoglobulin G ; Pemphigoid Gestationis* ; Pemphigoid, Bullous* ; Pregnancy

BACKGROUND: Hepatitis A is an acute infectious disease of the liver caused by the hepatitis A virus (HAV). The purpose of this study was to investigate the HAV vaccination status and related factors among college students. METHODS: The study subjects were 503 students conveniently sampled from C university located in one district of Jeollanamdo. General characteristics and HAV vaccination related factors were collected by a self-reported questionnaire in October 2013. Chi-square tests and multiple logistic regression analyses were used to evaluate related factors with HAV vaccination. RESULTS: Of the 503 subjects without a history of HAV infection, 65 subjects (12.9%) reported that they were vaccinated. In multiple analyses, subjects who have had health screening (adjusted odds ratio, aOR=2.44 and 95% confidence interval, 95% CI=1.26-4.73) and those who were aware of HAV infection (aOR=6.00, 95% CI=1.81-19.91) or who perceived the benefits of HAV vaccine (aOR=2.05, 95% CI=1.07-3.93) were more likely to be vaccinated than those not involved in these factors. With regard to intention for HAV vaccine, 314 subjects (71.9%) reported that they have the intention to be vaccinated against HAV. In multiple analyses, higher grade level, high monthly allowance, awareness of HAV vaccine, perceived susceptibility of HAV, perceived seriousness of HAV and perceived benefits of HAV vaccine were significantly associated with the intention for HAV vaccination. CONCLUSIONS: The vaccination rate for HAV was found to be low in our sample of college students. To reduce health risks related with HAV, prevention efforts should consider these results.
Communicable Diseases ; Hepatitis A ; Hepatitis A virus* ; Humans ; Intention ; Jeollanam-do ; Liver ; Logistic Models ; Mass Screening ; Odds Ratio ; Risk Factors ; Vaccination* ; Surveys and Questionnaires

Purpose: This study aims to explore mothers’ experiences of anger while raising a child in South Korea based on a qualitative descriptive approach. Methods: A total of ten mothers of children aged 1-3 years participated in the study. In-depth individual interviews were conducted from August to September 2019 to collect data, which were then subjected to thematic analysis. Results: A total of 4 main themes and 10 subthemes were identified. The 4 themes were “individual and environmental factors that influence anger,” “a vicious cycle of anger expression and guilt,” “being a little bit more mature as a mother,” and “need for anger management.” This study described various causes, ways of expressing, and effects of anger, as well as the mother’s coping strategies. These experiences were viewed as milestones along the journey to becoming a real parent and helped mothers develop empathy for other children and mothers. The participants expressed support for expanding the social support system for child-rearing and providing psychological programs for mothers. Conclusion Mothers of children aged 1-3 years experienced anger owing to various factors, but adapted by developing coping skills. This study recommends family-based support interventions to help mothers manage their emotions and parenting roles.

Anesthesia for the patients with mediastinal mass may be associated with significant respiratory and cardiovaacular complications due to compression of traeheobronchial trees, the pulmonary artery, heart and superior vena cava The authors present a case of a 6-year-old girl with a large mediastinal tumor located in anterior and superior mediaetinum. Preoperatively, the patient was asymptomatic and anesthesia was induced and maintained uneventfully. Operative finding was that 8 X 14 cm sized hemangioma was extended superiorly over thoracic outlet, posteriorly aorta and SVC, medially pericardium and right hilum and inferiorly right upper lung and pleura. Because difficulties in removal of the hemangioma were expected, exploratory thoracotomy was discontinued. On emergence, as soon as the patient was extubated due to irritability, the patient became cyanotic and was noticed bulging mass on right supraclavicular area, Intubation was attempted and during direct laryngoscopy, anesthesiologist also noticed a bulging mass in right oral cavity. Postoperatively, the patients airway was kept with endotracheal tube, but cyanosis appeared on the face and skin over the chest, but not below the abdomen. Bulging mass on right supraclavicular area, distension of neck vein and conjunctival edema were noticed only when the patient was crying or suctioned. Symptoms improved by deep sedation. We assumed that enlargement of hemangioma due to increased central blood volume occasionally compressed tracheobronchial tree and sup. vena cava when patient was irritable, crying and coughing. On 11th postoperative day, patient was transferred to the another hospital for the better treatment with endotracheal intubation.
Abdomen ; Airway Obstruction* ; Anesthesia ; Aorta ; Blood Volume ; Child ; Cough ; Crying ; Cyanosis ; Deep Sedation ; Edema ; Female ; Heart ; Hemangioma ; Humans ; Intubation ; Intubation, Intratracheal ; Laryngoscopy ; Lung ; Mouth ; Neck ; Pericardium ; Pleura ; Pulmonary Artery ; Skin ; Suction ; Thoracotomy ; Thorax ; Veins ; Vena Cava, Superior

This case was diagnosed as multiple cementoosseous dysplasia on the basis of clinical & radiological features but was diagnosed as ossifying fibroma on the basis of histopathological feature. The histopathologic features of the multiple cementoosseous dysplasia and cementoossifying fibroma have common features of cementum, fibrous network and bone. Multiple cementoosseous dysplasia is reactive lesion and shows restricted lesion size, occurred on anterior and posterior tooth of the mandible and needs no treatment except periodic follow up. But Cementoossifying fibroma is the true neoplasm and grows continuously and needs surgical removal. The final diagnosis of the multiple cementoosseous dysplasia requires good correlation of the clinical histopathological, and radiological features.
Dental Cementum ; Diagnosis ; Fibroma ; Fibroma, Ossifying ; Follow-Up Studies ; Mandible ; Tooth

Purpose: /Objectives: To determine predictors of fall events in hospitalized patients with cancer, and identification of fall risk. Methods: An analysis of medical records was conducted together with a review of standardized fall reports of 565 patients admitted between January 1 and December 31, 2020. The collected data were analyzed with the chi-squared test, Fisher exact test, independent t-test, and logistic regression analysis using STATA 17 program. Results: There was a statistically significant increased fall risk; accompanied by a guardian (OR=10.30 CI=2.66~39.94), number of attachment devices (OR=1.30, CI=0.46~0.64), medication (OR=0.17, CI=0.04~0.84), pain (OR=4.73, CI=1.59~14.0), walking problem (OR=29.85, CI=9.31~95.74), chemotherapy (OR=5.20, CI=1.81~14.89), and fall risk score (OR=1.83, CI=1.50~2.24). Conclusion These findings can serve as academic evidence to support the role of nurses in assessing the risk of fall events/accidents with regard to cancer patients and the development of individually adjusted fall assessment tools.