No abstract available.
Anxiety* ; Humans ; Renal Dialysis*

To evaluate the ultrastructural changes and the mechanism causing liver injury by lead, light and electron microscopic(LM and EM) examination using Timm sulphide silver method(TSM) was done. Sprague-Dawley rats were divided into a control and 3 experimental groups. The experimental groups were orally administered 0.5% lead acetate(LA). Group 1 received a one time dose of 10 ml of LA by gastric intubation. Groups 2 and 3 continuously received LA instead of drinking water. The control group was composed of 3 rats in each group which did not receive any treatment. Rats of group 1, 2 and 3 and control were sacrificed at 1/2, 1, 1 1/2 hours, 2 days, and at 1, 2, 4, 6 and 8 weeks later, except group 3. Before sacrifice, they were perfused with 0.1% sodium sulphide and 2.5% glutaraldehyde through the abdominal aorta for TSM. The liver was taken for LM and EM examinations. Blood lead concentration began to increase from the 2nd day up to 3.29 microgram/ml at 2nd week, and the urinary delta-ALA level showed a steady increase from the 2nd day. LM and EM examination of liver revealed that absorbed lead granules in group 1 were transported into sinusoidal spaces, Kupffer cells, and the hepatocytes within 1 hour and then disappeared 1/2 hour thereafter. In group 2 deposited lead was found in the hepatocytic cytosol bound to mitochondria. That in turn inhibited mitochondrial respiration with resultant mitochondrial swelling at the 1st week and thereafter at 6th week myelin figure formation and condensation of mitochondria, and peroxisomes were increased at 8th week. Based on these results it can be concluded that a transient intake of subletal dose of LA is biotransformed completely by periportal hepatocytes within 1 1/2 hours, but excessively accumulated lead can induce liver cell injury due to lipid peroxidation of membrane by direct toxic effect of lead and by products of lipid peroxidation. We postulate that lead acetate triggers presumably primarily mitochondrial membrane injury and then other organellar changes may play a role in disturbance of a network of interacting of key events capable of causing cell death.
Rats ; Animals

Rabbits were immunized with free-living amoebas by intravenous injections. The amoebas were Acanthamoeba culbertsoni and Naegleria fowleri and obtained by axenic cultivation in CGVS medium. Each rabbit received 10(6) of Acanthamoeba culbertsoni and 10(5) of Naegleria fowleri trophozoites respectively every other day in three doses and finally one booster dose at 1 week later. Antiserum was collected from thc following day of the booster injection up to 2 months period, and stored at -30 degree C until use. The immobilization test was performed. One drop of amoeba suspension was mixed with the test serum on slide and observed the mobile state under microscope. Maximal immobilizing phenomenon observed in 30 minutes and, then gradually recovered to normal state. Inactivation of antiserum at 56 degree C for 30 minutes did not affect the immobilization phenomenon. The immobilization rates decreased by the serial dilution of antiserum. At dilution more than 1:8, the immobilization was almost the same as in the normal serum. The immobilizing antibody in anti-Acanthamoeba culbertsoni rabbit serum showed highest titre in 3rd day after booster immunization and from first to 6th week in anti-Naegleria fowleri rabbit serum. Cross matching of Acanthamoeba culbertsoni and Naegleria fowleri showed antigenic difference of the two species. It is suggested that the immobilization reaction may be of value as a supplementary test in the diagnosis of primary amoebic meningoencephalitis.
parasitology-protozoa ; free-living amoeba ; Naegleria fowleri ; Acanthamoeba culbertsoni ; rabbit ; immunology

The purpose of this study was to examine the relationship among variables which are categorized by two groups : the first group consists of obesity, serum lipids, and blood pressure which were measured by physical index or physiological index, and the second group consists of demographic variables and variables related to lifestyle that is known to influence the first group. The canonical correlation analysis was conducted with the data collected from 400 male clients who visited one university hospital located in Inchon in a period, from May 1996 to December 1996, for physical examination. According to the results, blood pressure and HDL of the first group were shown to have strong relationship with age, alcohol, smoking, exercise of the second group. And total cholesterol, triglyceride, systolic, BMI of the first group were shown to have strong relationship with income status, education, exercise of the second group. And all of the serum lipids (total cholesterol, triglyceride, HDL), BMI, and diastolic were shown to have relationship with education, smoking, alcohol. It should be noted that fat rate, which was one of the indices for obesity, was not significant in any of the canonical variates. From the comparative study results on which combination of indices of obesity, serum lipids and blood pressure was related to either alcohol or smoking more, it can be seem that smoking was more highly related to two blood pressure indices such as systolic and diastolic, and that alcohol was highly related to serum lipid indices such as HDL, total cholesterol, triglyceride. Also investigation on what differences exist between the combination of variables showing high relationship to systolic and the combination of variables showing high relationship to diastolic was conducted. Systolic turned out to have relationship with total cholesterol, triglyceride, obesity (fat rate), income status, education, exercise. And diastolic was related to HDL-c, total cholesterol, tryglyceride, obesity (BMI), education, smoking, alcohol. From this results, it could be seen that the combination of variables which have high relationship to systolic and diastolic have different patterns. Lastly, the investigation on what relationships exist between serum lipids and demographic variables/lifestyle variables was conducted. It turned out that HDL-c had high relationship with age, education, income status, alcohol, and that all of serum lipids (total cholesterol, triglyceride, HDL) were shown to have high relationship with income status, education, age, exercise. From these results, it could be seen that the demographic variables were more influential both on HDL and on all of serum lipids than lifestyle variables were.
Arteriosclerosis* ; Blood Pressure ; Cholesterol ; Education ; Humans ; Incheon ; Life Style ; Male ; Obesity ; Physical Examination ; Risk Factors* ; Smoke ; Smoking ; Triglycerides

No abstract available.
Denture Bases* ; Dentures*

Improvements in therapy have resulted in increasing numbers of children being successfully treated for cancer. However the aggressiveness of therapy & uncertainty about prognosis are associated with many adverse effects, psychological as well as physical for both the child & family. The purpose of this study were to measure the degree of perceived uncertainty, self-efficacy & coping, and then to examine the relationship between the perceived uncertainty, self-efficacy & coping in parents of children cancer patients. The subjects of this study consist of 140 parents with pediatric cancer, registered at pediatric cancer ward & Out Patient Department. Data was collected from July 1st to August 15th 1998. The tools used in this study were Mishel's the Parents' Perception of Uncertainty Scale(28item, 4 likert scale), Shere's Self-Efficacy Scale)17item, 5 likert scale) & Folkman & Lazarus Ways of Coping Checklist)34 items, 4 likert scale). Data was analyzed by t-test, Anova, Pearson Correlation co-efficient. Results of this study are summarized as follows : 1. Parents perceived their uncertainty to be slightly high(Mn 2.41). The degree of perceived uncertainty by the four components were followed as : lack of clarity(2.60), unpredictability(2.59), ambiguity(2.51) & lack of information(1.90). The degree of perceived uncertainty of parents with pediatric cancer revealed to be influenced significantly by the family outcome, reliability about health care provider & perceived severity of illness. 2. The range of parents' self-efficacy was measured from 35 to 85 point, so revealed slightly high. The degree of self-efficacy related to be influenced significantly by the sequency of child birth, family religion & degree of perceived support. 3. The degree of parents' coping was measured slightly high(Mn 2.78). The degree of coping related to be influenced significantly by the sequency of child birth, number of sible & degree of perceived support. 4. parents' uncertainty was related inversely to the parents' self-efficacy(r=-.38, p<.001) & coping(r=-.26, p<.001). And also parents' self-efficacy was positively related to coping(r=.56, p<.001). From the above results, it can be concluded that predicting & controlling parents' uncertainty with children cancer are necessary to improve positive coping strategies. This information may be used as a foundation for developing nursing interventions to decrease perceived uncertainty & to foster self-efficacy & coping for parents with children cancer.
Child* ; Health Personnel ; Humans ; Nursing ; Parents ; Parturition ; Prognosis ; Uncertainty* ; Child Health

PURPOSE: The local public hospitals in Korea are regarded as institutions that must consider the provision of good quality public health services, as well as profitability. Therefore it is important to improve nursing services to produce positive change in local public hospitals. This study was done to examine the relationships between self efficacy, organizational commitment, customer orientation and nursing performance for nurses in local public hospitals. METHODS: For this study, 5 of 34 institutions were selected through random sampling: and 134 nurses working in local public hospitals were selected. Data were collected from March 28 to April 8, 2016 using self-report questionnaires. Collected data were analyzed using independent t-test, one-way ANOVA, Scheffé test, Pearson correlation coefficient and multiple regression with SPSS/WIN 18.0. RESULTS: The major findings are summarized as follows: (1) There were significant positive correlations between self efficacy, organizational commitment, customer orientation, and nursing performance. (2) The factors affecting nursing performance were self efficacy, organizational commitment, and customer orientation, in that order, and these variables explained 57% of nursing performance. CONCLUSION: Administrators in local public hospitals should use the results of this study to develop a strategy for improving nursing performance.
Administrative Personnel ; Hospitals, Public* ; Humans ; Korea ; Nursing Services ; Nursing* ; Public Health ; Self Efficacy*

No abstract available.
Dermatitis, Atopic* ; Humans ; Mothers*

PURPOSE: This study was conducted to investigate the school related stress and the need of mental health education among adolescents. METHOD: The subjects were selected by convenient sampling comprising of 1,049 high school students. The instrument of the study was the modified School Stress Scale by Kim (2002) and the Scale of Mental Health Education Need developed by Hyun et al.(2005). RESULTS: School-related stress and the need of mental health education were higher in female students than male ones. Among the types of stress, stress related to academic activities was highest for all students. The need of stress management was highest, which was followed by the need of self-management. As for the need of mental health education and school-related stress according to general characteristics, the need was significantly different according to the gender, grade, and experience in mental health education, and school-related stress was significantly different according to gender and grade. CONCLUSION: This study revealed that there was a correlation between school-related stress and the need of mental health education in high school students. This study also suggested the basic information and framework for planning, developing, and providing the school based mental health promotion education for the high school students.
Adolescent ; Education* ; Female ; Humans ; Male ; Mental Health* ; Self Care

No abstract available.
Heart* ; Lymphoma* ; Pericardial Effusion*