This study was carried out to demonstrate the mode of ADR-induced cell death(apoptosis) on the light and electron microscopic features, to measure the apoptotic index dependent on various doses of ADR, to investigate the possible mechanism of apoptosis induced by ADR, and to evaluate ISNT method for the detection of DNA strand break. HeLa cells were treated with various doses of ADR 0.1~100.0 microgram/ml and observed under the light and transmission electron microscopes at 6 hours, 1 day and 3 days after ADR treatment. In addition, DNA strand breaks induced by ADR were detected in HeLa cells using the in situ nick translation(ISNT) method. The results were as follows: 1) The cell viability of HeLa cells decreased and the apoptotic index increased following exposure to ADR in a dose-dependent manner, resulting in about 44% of apoptotic index at 100.0 microgram/ml of ADR treatment. 2) Light microscopically, HeLa cells treated with ADR showed shrinkage or condensation of nucleus and cytoplasm. There were various unclear changes showing irregular, large, delineated masses of condensed chromatin abutting on the nuclear envelopes. Later stage of apoptosis revealed contracted and condensed cytoplasm with irregular cell membrane. Electron microscopically, margination of condensed chromatin, dilatation of endoplasmic reticulum under the plasma membrane, aggregation of cytoplasmic organelles with morphologically intact mitochondria, and irregular cell surface with blebbing were observed. 3) ISNT using biotinylated dUTP exhibited strong positive nuclear staining in HeLa cells treated with ADR. There was a marked response at 10.0~20.0 microgram/ml of ADR treatment. It is concluded from the above results that the death of HeLa cells induced by ADR was apoptotic in type based on light and electron microscopic appearance. The apoptotic index correlated with the increasing dose of ADR. ISNT with biotinylated dUTP led to visible evidence of DNA strand breaks following ADR treatment of HeLa cells. ISNT can be used for detection of DNA degradation, caused by activation of endogenous endonuclease, which is an early and specific characteristic of apoptosis.

Hemangiopericycic maningioma is clinically and pathologically similar to peripheral Hemangiopericytoma and now tends to be terned as hemangiopericytoma of central nervous system. The authors studied 3 cases of hemangiopericytic meningioma obtained from 3 patients, 1 case of meningotheliomatous meningioma, angioblastic meningioma and transitional meningioma, and 2 cases of peripheral hemangiopericytoma, which had operated from November 1988 to May 1989 at the department of neurosurgery, Pusan Inje University Hospital. The authors analysed and compared the immunohistochemical finding and light microscopic apearance. The results obtained were summarized as follows; 1) Classic maningioma (meningotheliomatous meningioma, transitional meningioma and angioblastic meningioma) shows reactivity to both EMA and vimentin. 2) Hemangiopercicytic meningioma and peripheral hemangiopericytoma are reactive only to vimentin, so the two tumors are suggested as same type of tumor. 3) One of 3 cases of hemangiopericytic meningioma shows whorling and interlacing bundles of spindle cells, the peculiar light microscopic features of transitional meningioma, suggesting transitional or mixed form of hemangiopericytic meningioma and transitional meningioma.
Meningioma

Hemangiopericycic maningioma is clinically and pathologically similar to peripheral Hemangiopericytoma and now tends to be terned as hemangiopericytoma of central nervous system. The authors studied 3 cases of hemangiopericytic meningioma obtained from 3 patients, 1 case of meningotheliomatous meningioma, angioblastic meningioma and transitional meningioma, and 2 cases of peripheral hemangiopericytoma, which had operated from November 1988 to May 1989 at the department of neurosurgery, Pusan Inje University Hospital. The authors analysed and compared the immunohistochemical finding and light microscopic apearance. The results obtained were summarized as follows; 1) Classic maningioma (meningotheliomatous meningioma, transitional meningioma and angioblastic meningioma) shows reactivity to both EMA and vimentin. 2) Hemangiopercicytic meningioma and peripheral hemangiopericytoma are reactive only to vimentin, so the two tumors are suggested as same type of tumor. 3) One of 3 cases of hemangiopericytic meningioma shows whorling and interlacing bundles of spindle cells, the peculiar light microscopic features of transitional meningioma, suggesting transitional or mixed form of hemangiopericytic meningioma and transitional meningioma.
Meningioma

Recently attention has been focused on the biology of transforming growth factor-beta1 (TGF-beta1). TGF-beta1, a potent regulator of cell proliferation, stimulates the proliferation of many cell types of mesenchymal origin and inhibits the growth of many epithelial cells. But its cellular distribution and temporal expression remain unknown. The aim of this study was to investigate immunohistochemically the cellular distribution and temporal expression of TGF-beta1 during rat hepatic fibrosis induced by dimethylnitrosamine (DMN). At an early stage of liver fibrosis, there was evidence of multiple centrilobular hemorrhagic necrosis with parenchymal lobular collapse, and at a late stage, there was septal fibrosis with micronodule formation of the parenchyme. TGF-beta1 peptide was first expressed in centrilobular clusters of macrophage which were surrounded by many TGF-beta1 negative fat-storing cells (FSCs). Along with the progression of fibrosis, the TGF-beta1 peptide was expressed in the alpha-smooth muscle actin positive FSCs and also in some peripherally located hepatocytes of micronodules. Serum IFN-gamma was detected in the serum 2 weeks after an initial administration of DMN had reached the peak level at the 4th week and then markedly decreased at the 5th week. We think that TGF-beta1 peptide is produced by macrophages influenced by soluble IFN-gamma, and is expressed in the -smooth muscle actin positive mesenchymal cells and regenerating hepatocytes, and that this cytokine may have an important role in the synthesis of the extracellular matrix and in the regulation of hepatocytic regeneration.
Actins ; Animals ; Biology ; Cell Proliferation ; Dimethylnitrosamine* ; Epithelial Cells ; Extracellular Matrix ; Fibrosis* ; Hepatocytes ; Liver Cirrhosis ; Liver* ; Macrophages ; Necrosis ; Rats* ; Regeneration ; Transforming Growth Factor beta1*

No abstract available.
Blood Transfusion* ; Female ; Humans

A case of mucous gland adenoma arising from the main bronchus of the middle lobe of the right lung is reported, with review of related literatures. The patient, a 12 year-old Korean male, was admitted to Pusan National University Hospital with complaints of progressive coughing and dyspnea. Roentgenographic studies revealed a well defined mass involving the right middle lobe of the lung. With the impression of benign tumor, right middle lobectomy was performed. The gross specimen revealed a polypoid mass involving the main bronchus, measuring 4.5x 3.7 x 2.5cm. The cut surface of the mass revealed yellow-gray myxoid tissue. Histologically, the mass consisted of glandular structures filled with mucus, which proved to be acid one on histochemical study. The glandular lining was made up of a single layer of berign mucous cells, many of them being flattened.
Adenoma

No abstract available.
Frontal Lobe* ; Neuropsychological Tests*

PURPOSE: This study was to investigate effects of the dementia family education program on dementia recognition, burden, and depression in caregivers of elders with dementia. METHODS: Aquasi-experimental research with a nonequivalent control group non-synchronized pre and post design was used with 52 caregivers of elders with dementia living in D city. Data were collected from August 12 to December 12, 2013. The dementia family education program was provided to the experimental group once a week over 8 weeks, for 90 minutes per session. Data were analyzed using χ² test, Fisher exact probability test, t-test. RESULTS: Experimental group participants who took part in the dementia family education program had higher dementia recognition scores than the control group that did not participate (t=3.79, p<.001). Experimental group participants who took part in the dementia family education program had lower burden and depression scores than the control group that did not participate (t=-2.90, p=.006) (t=-2.22, p=.034). CONCLUSION: The findings indicate that the dementia family education program enhances dementia recognition by caregivers of elders with dementia and lowers burden and depression in these caregivers. Use of the dementia family education program is recommended as an effective nursing intervention for caregivers of elders with dementia.
Caregivers* ; Dementia* ; Depression* ; Education* ; Humans ; Nursing

The purpose of this study was to investigate the factors influencing social adaptation of chronic mental illness. The subjects of this study were 190 patients, over the age of 20 with chronic mental illness diagnosed by a physician, and living in Seoul, Korea during May, 2000 to December 2000. The instruments for this study were the social adaptation scale by Wallace (1979), the self-esteem scale by Rogenberg (1965), social support scale by ParkJiWon (1985), coping behavior scale by Shirley Zeitlin (1978), self efficacy scale by Sherer et. al (1982), and Rand mental health inventory(1979). The data were analyzed using descriptive statistics, pearson correlation coefficients, and stepwise multiple regression. The results of this study are as follows: 1. The level of social adaptation showed moderate (M=3.43). 2. The social adaptation showed significant positive correlation with self-esteem (r=0.39, p=0.00), self-efficacy (r=0.31, p=0.00), social support (r=0.47, p=0.00), self-productive coping (r=0.14, p=0.05), self-flexible coping (r=0.22, p=0.00), environment-active coping (r=0.21, p=0.00), and environment-flexible coping (r=0.14, p=0.04). The social adaptation showed significant negative correlation with anxiety (r=-0.16, p=0.02), and emotional problems (r=-0.18, p=-0.00). 3. The stepwise multiple regression analysis revealed that the most powerful predictor of social adaptation was social support (21%). A combination of social support, depression, behavioral controllability, self-efficacy, and environmental coping behavior accounted for 39% of the variance in social adaptation in chronic mental illness. From the results of this study, it is suggested to develop and apply a social adaptation training program for chronic mental illness.
Adaptation, Psychological ; Anxiety ; Depression ; Education ; Humans ; Korea ; Mental Health ; Self Efficacy ; Seoul

BACKGROUND: The purpose of this study was to develop and apply a prevention program for needle-stick injuries among health care workers who have a high occupational risk of such injuries, and to analyze the effect of the program on the subjects' knowledge regarding such injuries and compliance with protocols, as well as the incidence of needle-stick injuries among subjects. METHODS: The subjects of this study were nurses (RNs) and nurse's aides (NAs) working at a university hospital in Daegu. The data were collected by conducting surveys and determining the incidence of needle-stick injuries during a 1-year period before the application of the program. The program consisted of preventive education on needle-stick injury, the use of standardized boxes to measure blood sugar test, and the use of intravenous catheters with safety needles. Six months after the intervention, surveys were conducted to analyze the incidence of needle-stick injuries. The data on knowledge and compliance related to needle-stick injuries before and after program application were analyzed using the paired t-test, and data on the incidence of injuries were analyzed using the chi-square test. RESULTS: The scores on knowledge (RN, P<0.001; NA, P=0.007) and compliance (RN, P<0.001; NA, P=0.038) were significantly higher after the intervention than before. However, the number of reports on the incidence of needle-stick injuries before and after the intervention were not significantly different (RN, P=0.691; NA, P=0.079). CONCLUSION: The prevention program for needle-stick injuries was effective in improving the knowledge and compliance related to needle-stick injuries among RNs and NAs, but the number of reports on the incidence of injuries showed no difference. Therefore, the prevention program must be reevaluated and further developed after continuously monitoring and analyzing it in a hospital setting in order to decrease the incidence of needle-stick injuries.
Blood Glucose ; Catheters ; Compliance ; Delivery of Health Care ; Humans ; Incidence ; Needles ; Needlestick Injuries ; Nurses' Aides ; Plant Extracts