To elucidate the effect of copper on the 3'-methyl-4-dimethylaminoazobenzene(3'-MeDAB) induced hepatic carcinogenesis, Sprague-Dawley rats were divided into 4 groups according to 3'-MeDAB and copper administration: I. noraml control, II. copper only, III. 3'-MeDAB only, IV. 3'-MeDAB plus copper. The animals of groups III and IV were fed experimental diet containing 0.06% 3'-MeDAB. Copper was administrated intraperitoneally in a dose of 0.5 mg, twice a weak. Animals were sacrificed at different intervals. Liver weight, hepatic copper content and gross and microscopical changes of the liver were examined and the cell kinetics of various lesions in the hepatic carcinogenesis was studied by applying the immunohistochemical method for bromodeoxyuridine(BrdU). The hepatic copper content was significantly increased in animals given copper but returned to the normal value after cessation of adminstration. 3'-MeDAB administration caused oval cell proliferation and produced hyperplastic nodules, cholangiofibrosis and carcinoma of the liver. Simultaneous administration of copper did not alter the incidence of 3'-MeDAB induced lesions, except for carcinoma. The liver weight and the size of hepatic nodules and masses were smaller in group IV than in group III. The liver weight as well as the nodularity and the mass formation continued to increase affect cessation of 3'-MeDAB administration. Copper did not affect the BrdU labelling indices of the hepatic lesions induced by 3'-MeDAB. The oval cell proliferation and the BrdU labelling indices of the oval cell and the hyperplastic nodule were decreased, but the incidence of cholangiofibrosis and its BrdU labelling index were still elevated after cessation of 3'MeDAB administration. These findings indicate that copper could delay the developement of 3'-MeDAB induced hepatic lesions, but not suppress, since copper does not stay long enough to accumulate in the rat liver, and that copper could not affect the proliferation of 3'-MeDAB induced hepatic lesions once developed.
Rats ; Animals ; Incidence

No abstract available.
Intuition* ; Nursing* ; Philosophy*

No abstract available.
Cervix Uteri* ; Female ; Fibrin Tissue Adhesive*

PURPOSE: The purpose of this study was to analyze factors affecting work engagement and burnout among clinical nurses according to resilience. METHODS: The study design was a descriptive survey and questionnaires were collected from 182 clinical nurses who worked in hospitals in "J" province. Data were analyzed using frequency, percentage, mean, standard deviation, independent t-test, one-way ANOVA, Scheffe test, Pearson correlation, and hierarchical multiple regressions. RESULTS: The mean score of resilience, work engagement, burnout were 3.47+/-0.38, 4.29+/-0.98, 2.25+/-0.82 respectively. Resilience had 26.3% of the influence on work engagement and 50.5% of the influence on burnout. Sub-variables of causal analysis and empathy of resilience were statistically useful as factors influencing burnout. CONCLUSION: Resilience has been identified as a factor affecting work engagement and burnout. Therefore, nursing departments and nurse managers should strive to develop programs for the promotion of resilience.
Empathy ; Humans ; Nurse Administrators ; Surveys and Questionnaires

Unsuspected pheochromocytoma in a surgical patients may lead to serial complications. These include extreme hypertension, taehycardia and cardiac arrythmias which lead to cardiac arrest, cerebrovascular accident and renal failure in the postoperative period. Pheochromocytoma arising in the urinary bladder is a rare tumor. We recently experienced a case of pheochromocytoma which was found during transurethral resection for biopsy of bladder tumor under spinal anesthesia. The blood pressure suddenly rose during resection. of the tumor. It was difficult to arrive at a correct diagnosis in this case because of the predominant bladder symptams without hypertenaive attack. Therefore, final diagnosis was made as the pheochromocytoms after histological examination. The resection of the tumor was performed under general anesthesia after careful studies. The patient was not treated during the preoperative period as she had no particular symptoms, but Regitine was glven during surgery. Regitine was used twice to control the transient hypertension during manipulation of the tumor. After removal of the tumor, the blood pressure was well regulated without vasopressor drugs. We report a case of pheochromocytoma of urinary bladder with successful anesthesia management and the use of neuroleptanesthetics.
Anesthesia ; Anesthesia, General ; Anesthesia, Spinal ; Arrhythmias, Cardiac ; Biopsy ; Blood Pressure ; Diagnosis ; Heart Arrest ; Humans ; Hypertension ; Phentolamine ; Pheochromocytoma* ; Postoperative Period ; Preoperative Period ; Renal Insufficiency ; Stroke ; Urinary Bladder Neoplasms* ; Urinary Bladder*

No abstract available.
Leukemia, Hairy Cell*

No abstract available.
Pregnancy*

To analyzed the progression of white matter maturation and white matter pathology, MR imaging of the brain was obtained in 38 children with delayed development. Children with developmental delay showed a high incidence of MR abnormalities(34/38, 89.5%). Delayed pattern of myelination and gray-white matter differentiation was seen in 13 patients. Twenty-two patients had white matter patholgy, including 14 with white matter hypoplasia, seven with focal small infarction, five with periventricular leukomalacia, and three with high signal intensities on T2 weighted image. Associated structural abnormalities were also evaluated. The most common lesions in decreasing frequency were cerebral atrophy and dysgenesis of the corpus callosum, pachygyria and/or polymicrogyria, porencephalic cyst and Leigh's disease. Twenty-three of 34 children had multiple abnormalities on MRI. The MRI was useful in depicting the progression of myelination and other white matter lesions, and serial follow-up MR is recommended for patients with delayed or lack of myelination and gray-white matter differentiation.
Abnormalities, Multiple ; Atrophy ; Brain* ; Child* ; Corpus Callosum ; Follow-Up Studies ; Humans ; Incidence ; Infant, Newborn ; Infarction ; Leigh Disease ; Leukomalacia, Periventricular ; Lissencephaly ; Magnetic Resonance Imaging* ; Myelin Sheath ; Pathology ; Polymicrogyria ; White Matter*

A rare case of hepatic metastasis with a choriocarcinomatous component from a composite adenocarcinoma and choriocarcinoma of the sigmoid colon in a 60-year-old man is reported. The hepatic metastasis displayed choriocarcinoma with extensive hemorrhagic necrosis. The tumor cells were poorly differentiated with scattered foci of bizzare syncytiotrophoblastic cells. Retrospective examination of the previous colonic carcinoma proved that the tumor was composed of two distinctive elements. One was a moderately well differentiated adenocarcinoma located in mucosa and submucosa. The other was a deep seated and undifferentiated carcinoma which was made up of hyperchromatic bizzare cells with syncytiotrophoblastic cells. There were transitional foci from adenocarcinoma to undifferentiated carcinoma with trophoblastic cells. Immunohistochemical staining showed beta-hCG expression in the undifferentiated cells of both the primary and the metastatic tumors. Implications for the possible origin and cause of tumor cell heterogeneity are briefly discussed.
Adenocarcinoma* ; Carcinoma ; Choriocarcinoma* ; Colon ; Colon, Sigmoid* ; Female ; Humans ; Middle Aged ; Mucous Membrane ; Necrosis ; Neoplasm Metastasis* ; Population Characteristics ; Pregnancy ; Retrospective Studies ; Trophoblasts

No abstract available.
Fallopian Tubes* ; Female ; Infertility* ; Spermatozoa*