No abstract available.
Animals ; Indomethacin* ; Killer Cells, Lymphokine-Activated* ; Mice*

No abstract available.

No Abstract Available.
Humans

No abstract available.
Angelica*

No abstract available.
Apoptosis* ; Cell Line* ; Colon* ; Colonic Neoplasms* ; Etoposide*

Objective: It is essential to measure the effect of burnout on doctors because burnout can affect doctors’ mental health as well as the functioning of medical practice. This study aims to validate a Korean version of the single-item burnout measure (SIBM), which was developed to quickly measure the level of burnout among doctors. Methods: Through an online survey, a self-report questionnaire was administered to 324 public health doctors in Korea. The Korean version of the SIBM was validated against the Maslach Burnout Inventory-General Survey (MBI-GS), the Patient Health Questionnaire-9 (PHQ-9), the Generalized Anxiety Disorder-7 (GAD-7) screening tool, the Perceived Stress Scale (PSS), and the Vaccination Attitudes Examination (VAX) scale. Pearson correlation coefficients and analysis of variance (ANOVA) were used to determine the association between the SIBM and other scales. ANOVA was additionally used to determine the associations between the subscales of the MBI-GS and those of the SIBM. Results: The correlation coefficient between the SIBM and the MBI-GS, PHQ-9, GAD-7, and PSS was positive (p<0.01), and the correlation coefficient between the SIBM and the VAX scale was not significant. Therefore, convergent and discriminant validity was verified. Exhaustion and cynicism, which were correlated with the SIBM, with r2=0.43 (p<0.01) and 0.48 (p<0.01), yielded R2 scores of 0.27 (p<0.01) and 0.20 (p<0.01) in ANOVA. Conclusion The Korean version of the SIBM is an appropriate screening tool for burnout. It can be evaluated in a short time, thereby enhancing continuous follow-up observations and response rates to burnout.

BACKGROUND/AIMS: The aims of our study are to assess the frequency of peripheral blood mononuclear cell (PBMC) proliferation and cytokine profiles to hepatitis C virus (HCV) core protein and NS3 protein to search the potential immunosuppressive effect of HCV core in chronically HCV-infected patients. Subjects and METHODS: Thirty two anti-HCV-positive patients with chronic liver diseases, eight HBsAg-positive patients with chronic liver diseases, and six healthy adults were the subjects of our study. Using recombinant HCV core and NS3, proliferative response of PBMC and cytokine production were determined. RESULTS: Fifty nine percent and thirteen percent of patients with HCV-related chronic liver diseases showed positive PBMC proliferation to HCV core and NS3, respectively. Thirty four percent and fifty nine percent of patients with HCV-related chronic liver diseases showed significant production of interferon-gamma to HCV core and NS3, respectively. IL-4 production was negligible. When the PBMC were treated with HCV core and NS3 concurrently, or HCV core and phytohemagglutinin concurrently, the stimulation indices were significantly decreased compared to those treated either with NS3 or PHA without core. CONCLUSIONS: Although about two thirds of chronically HCV-infected patients with liver diseases showed the PBMC proliferation and Th 1 type cytokine profile, they could not eradicate the viral infection. This ineffective immune response seems to play a role in the pathogenesis of chronic inflammatory liver disease resulting in liver cirrhosis and hepatocellular carcinoma. HCV core showed a potential immunosuppressive effect, which has important meaning for the mechanism of HCV persistence.
Adult ; Carcinoma, Hepatocellular ; Hepacivirus ; Hepatitis C, Chronic* ; Hepatitis, Chronic* ; Humans ; Immunosuppression ; Interferon-gamma ; Interleukin-4 ; Liver Cirrhosis ; Liver Diseases

OBJECTIVE: We examined the relationship between chronotype and sleep disturbance, and assessed various factors that might be associated with sleep disturbance in Korean firefighters. METHODS: Self-administered questionnaires assessing chronotype, depression, alcohol use, posttraumatic stress disorder (PTSD), stress response and sleep quality were examined in 515 firefighters. RESULTS: Evening type firefighters more reported depression, alcohol use, PTSD, stress response and sleep disturbance. Also evening chronotype was the most significant risk factor for poor sleep quality (odds ratio [OR], 4.812; 95% confidence interval [CI], 2.448-9.459), even after controlling for all other variables (OR, 3.996; 95% CI, 1.806-8.841). CONCLUSION: Chronotype was the factor most strongly associated with sleep disturbance, and therefore should be considered an important variable in sleep quality, particularly in occupations involving stressful activities, such as firefighting.
Depression ; Firefighters* ; Humans ; Occupations ; Risk Factors ; Sleep Initiation and Maintenance Disorders ; Stress Disorders, Post-Traumatic

Pulmonary giant cell carcinoma is one of the most highly malignant neoplasms of the lung. Although mixed malignant glandular or squamous components may be associated with a giant cell carcinoma, it is a distinct clinical and morphologic entity. We reviewed cytologic presentations of 6 cases of pulmonary giant cell carcinoma. Cytologically, the single most characteristic feature of giant cell carcinoma was an extremely large, bizarre cancer cell engulfing numerous leukocytes. The nuclei of these cells showed occasional prominent nucleoli, and the cytoplasm was abundant. Giant cells were also seen in other types of pulmonary carcinoma, but the giant cells of this neoplasm could be differentiated from those encountered in undifferentiated large cell carcinoma and squamous cell carcinoma by the abundant cytoplasm, the presence of markedly enlarged nuclei, prominent nucleoli, and an significant degree of phagocytosis, In conclusion, precise diagnosis and classification of lung cancer is imperative because of proved correlation between cell type and prognosis.
Carcinoma, Giant Cell* ; Carcinoma, Large Cell ; Carcinoma, Squamous Cell ; Classification ; Cytophagocytosis ; Cytoplasm ; Diagnosis ; Giant Cells* ; Leukocytes ; Lung Neoplasms ; Lung* ; Phagocytosis ; Prognosis