The association between quality of direct supervisor's behavior and depressive mood in Korean wage workers: the 4th Korean Working Conditions Survey

BACKGROUND: Workers spend most of their social lives at work and have relationships of varying nature with people in the workplace. Direct supervisors, in particular, have a direct and lasting impact on workers, which may influence workers' mental health. Depression is very prevalent worldwide, and social concern about the disease is on the rise. The aim of this study is to investigate the effect of direct supervisors' behavior on the depressive mood of Korean wage workers. METHODS: We used data from the 4th Korean Working Conditions Survey held in 2014; 22,212 participants were included in the analysis. The quality of a direct supervisor's behavior was categorized from 0 (= lowest) to 5 (= highest) points. The degree of depressive mood was measured on a scale from “normal mood” to “likely depression” based on the 5-item World Health Organization Well-Being Index (WHO-5) questionnaire. Multiple logistic regression was used to analyze the association between the quality of the direct supervisor's behavior and the depressive mood of wage workers. RESULTS: After multivariable adjustment, significantly increased odds ratio (OR) for likely depression was found in the 4, 3, 2, 1, and 0 points of the quality of the direct supervisor's behavior compared to 5 points. After stratification for the level of satisfaction with working conditions, the OR of the unsatisfied groups was higher than that of the satisfied groups. CONCLUSIONS: Likely depression was found to be significantly associated with a low quality of direct supervisor's behavior. This association was stronger in workers who were not satisfied with their working conditions. This study suggests that proper management of the direct supervisor's behavior is needed to reduce the risk of depression among Korean wage workers.

Stability of dental, alveolar, and skeletal changes after miniscrew-assisted rapid palatal expansion / 대한치과교정학회지

OBJECTIVE: Miniscrew-assisted rapid palatal expansion (MARPE) is a means for expanding the basal bone without surgical intervention in young adults. Here, we assessed the differences in dental, alveolar, and skeletal measurements taken before (T0), immediately after (T1), and 1 year after (T2) MARPE. METHODS: Twenty-four patients (mean age, 21.6 years) who had undergone MARPE and cone-beam computed tomography at T0, T1, and T2 were included. Changes in the following parameters were compared using paired t-tests: intercusp, interapex, alveolar, nasal floor, and nasal cavity widths; inclination of the first molar (M1) and its alveolus; and thickness and height of the alveolar bone. A linear mixed-effects model was used to determine variables that affected periodontal changes in the M1. RESULTS: MARPE produced significant increases in most measurements during T0–T2, despite relapse of some measurements during T1–T2. The alveolar thickness decreased on the buccal side, but increased on the palatal side. The alveolar crest level at the first premolar moved apically. Changes in the thickness and height of the alveolar bone were affected by the corresponding initial values. CONCLUSIONS: MARPE can be used as an effective tool for correcting maxillomandibular transverse discrepancy, showing stable outcomes 1 year after expansion.

Expression of Topoisomerase II-alpha and c-erbB-2 in Breast Cancer

PURPOSE: Topoisomerase II-alpha is a key enzyme in DNA replication and a molecular target for many anti-cancer drugs. The C-erbB-2 oncogene (HER-2/neu) is the most frequently amplified oncogene in breast cancer. Because of the physical proximity of c-erbB-2 and topoisomerase II-alpha, co-amplification of the c-erbB-2 and topoisomerase II-alpha may occur. To investigate the clinical significance of the topoisomerase II-alpha and c-erbB-2, the correlation between topoisomerase II-alpha and c-erbB-2 was examined by immunohistochemical staining in 43 invasive ductal breast carcinomas and its relationship with other prognostic factors. METHODS: Topoisomerase II-alpha and c-erbB-2 expression was studied immunohistochemically using sections of formalin fixed, paraffin-embedded tumor specimens from 43 invasive ductal breast carcinomas. The correlation between topoisomerase II-alpha and c-erbB-2 expression, and its relationship with the clinicopathological factors such as the tumor size, lymph node metastasis, TNM stage, histological grade, nuclear grade, estrogen receptors and progesteron receptors was investigated. RESULTS: C-erbB-2 was expressed in 9 (20.9%) out of the 43 infiltrating ductal carcinoma cases. Among the prognostic factors, the tumor size, lymph node metastasis, tumor stage, nuclear grade, status of progesteron receptors and estrogen receptors did not significantly correlated with c-erbB-2 expression. The tumor size, lymph node metastasis, tumor stage, histological grade, and the absence of estrogen receptors displayed a significant relationship with the increase in the topoisomerase-alpha index. However, the topoisomerase II-alpha index did not correlate with the nuclear grade and the status of progesterone receptors. The topoisomerase II-alpha index was slightly higher in the c-erbB-2 positive expression cases compared to c-erbB-2 negative expression cases but this increase was not significant (P=0.503). CONCLUSION: These results suggest that topoisomerase II-alpha may play some role as a prognostic factor, but further investigation is needed.

Expression of Topoisomerase II-alpha and c-erbB-2 in Breast Cancer / 한국유방암학회지

PURPOSE: Topoisomerase II-alpha is a key enzyme in DNA replication and a molecular target for many anti-cancer drugs. The C-erbB-2 oncogene (HER-2/neu) is the most frequently amplified oncogene in breast cancer. Because of the physical proximity of c-erbB-2 and topoisomerase II-alpha, co-amplification of the c-erbB-2 and topoisomerase II-alpha may occur. To investigate the clinical significance of the topoisomerase II-alpha and c-erbB-2, the correlation between topoisomerase II-alpha and c-erbB-2 was examined by immunohistochemical staining in 43 invasive ductal breast carcinomas and its relationship with other prognostic factors. METHODS: Topoisomerase II-alpha and c-erbB-2 expression was studied immunohistochemically using sections of formalin fixed, paraffin-embedded tumor specimens from 43 invasive ductal breast carcinomas. The correlation between topoisomerase II-alpha and c-erbB-2 expression, and its relationship with the clinicopathological factors such as the tumor size, lymph node metastasis, TNM stage, histological grade, nuclear grade, estrogen receptors and progesteron receptors was investigated. RESULTS: C-erbB-2 was expressed in 9 (20.9%) out of the 43 infiltrating ductal carcinoma cases. Among the prognostic factors, the tumor size, lymph node metastasis, tumor stage, nuclear grade, status of progesteron receptors and estrogen receptors did not significantly correlated with c-erbB-2 expression. The tumor size, lymph node metastasis, tumor stage, histological grade, and the absence of estrogen receptors displayed a significant relationship with the increase in the topoisomerase-alpha index. However, the topoisomerase II-alpha index did not correlate with the nuclear grade and the status of progesterone receptors. The topoisomerase II-alpha index was slightly higher in the c-erbB-2 positive expression cases compared to c-erbB-2 negative expression cases but this increase was not significant (P=0.503). CONCLUSION: These results suggest that topoisomerase II-alpha may play some role as a prognostic factor, but further investigation is needed.

Loss of Expression of the PTEN Gene Product in the Infiltrating Ductal Carcinoma of the Breast and Its Relationship with Clinicopathologic Factors / 한국유방암학회지

PURPOSE: PTEN is a novel tumor suppressor gene located on chromosomal band 10q23.3. The detection of PTEN mutations in Cowden disease and in breast carcinoma cell lines suggests that PTEN may be involved in mammary carcinogenesis. Among several series of breast carcinomas, the frequency of loss of flanking markers around PTEN is approximately 30 to 40% and the somatic intragenic PTEN mutation frequency is less than 5%. METHODS: The expression of PTEN was stuided immunohistochemically studied in 41 invasive ductal carcinomas of the breast. We examined the correlation between PTEN expression and clinicopathologic factors such as age, tumor size, lymph node metastasis, histologic grade, nuclear grade, stage, as well as estrogen and progesteron receptors. RESULTS: Among the 41 infiltrating ductal carcinomas, studied 7 (17.1%) were immunohistochemically negative, and 19 (46.3%) demonstrated reduced expression. Among the clinicopathologic factors, tumor size, lymph node metastasis, high stage, and negative progesteron receptor displayed a significant relationship with the decrease of PTEN expression, however age, nuclear grade, and estrogen receptor had less of a relationship with PTEN expression. CONCLUSION: These results suggest that PTEN does play some role as a prognostic factor for carcinogenesis, but this hypothesis requires further study.

Loss of Expression of the PTEN Gene Product in the Infiltrating Ductal Carcinoma of the Breast and Its Relationship with Clinicopathologic Factors

PURPOSE: PTEN is a novel tumor suppressor gene located on chromosomal band 10q23.3. The detection of PTEN mutations in Cowden disease and in breast carcinoma cell lines suggests that PTEN may be involved in mammary carcinogenesis. Among several series of breast carcinomas, the frequency of loss of flanking markers around PTEN is approximately 30 to 40% and the somatic intragenic PTEN mutation frequency is less than 5%. METHODS: The expression of PTEN was stuided immunohistochemically studied in 41 invasive ductal carcinomas of the breast. We examined the correlation between PTEN expression and clinicopathologic factors such as age, tumor size, lymph node metastasis, histologic grade, nuclear grade, stage, as well as estrogen and progesteron receptors. RESULTS: Among the 41 infiltrating ductal carcinomas, studied 7 (17.1%) were immunohistochemically negative, and 19 (46.3%) demonstrated reduced expression. Among the clinicopathologic factors, tumor size, lymph node metastasis, high stage, and negative progesteron receptor displayed a significant relationship with the decrease of PTEN expression, however age, nuclear grade, and estrogen receptor had less of a relationship with PTEN expression. CONCLUSION: These results suggest that PTEN does play some role as a prognostic factor for carcinogenesis, but this hypothesis requires further study.

VEGF Expression and MVD in Ductal Carcinoma of Breast / 대한암학회지

PURPOSE: This study was aimed to determine the role of the VEGF and MVD expression in infiltrating ductal carcinoma of breast and to observe the correlation between the expression of these VEGF/MVD, and other prognostic factors. MATERIALS AND METHODS: Immunohistochemical staining of VEGF and MVD with monoclonal antibody in pathologic specimens of 35 patients of infiltrating ductal carcinoma of breast was carried out. Reiationship between the expression of the VEGF/MVD and prognostic factors were assessed. RESULTS: The VEGF/MVD expression was closely related to tumor size, lymph node metastasis, and clinical stage, but not related to histologic grade, nuclear grade, estrogen receptor, and progestrone receptor. And the VEGF expression was closely related to MVD. CONCLUSION: The VEGF expression and microvessel density in infiltrating ductal carcinoma of breast may play an important prognostic factors, closely related to the tumor size, lymph node metastasis, and stage.

Prognostic Significance of VEGF in Human Stomach Cancer / 대한암학회지

PURPOSE: Angiogenesis plays an important role in the growth, progression and metastasis of solid tumors. Vascular endothelial growth factor (VEGF) was thought to be one such angiogenic factor and was also thought to be a selective mitogen for endothelial cells. The purpose of this retrospective study was to evaluate for prognostic significance of VEGF in stomach cancer. MATERIALS AND METHODS: The sections of formalin-fixed, paraffin embedded from 55 stomach cancer were stained immunohistochemically for VEGF. The rate of VEGF expression and correlation between expression of VEGF and other prognostic factor of stomach cancer were studied. RESULTS: There were 20 cases (36.4%) of VEGF-positive and 35 cases (63.6%) of VEGF- negative. There were no significant difference between VEGF expression and the histologic type, differentiation, depth of invasion of histologic stage, lymph node involvement. The frequency of hepatic recurrence was higher in patients with VEGF-positive tumor than that af patient with negative tumor (p=0.007). The prognosis of the patients with VEGF positive tumor was worse than that of patients with VEGF negative tumor (p=0.0214). CONCLUSION: There was a closely significant between positive expression of VEGF and a high incidence of hepatic metastasis, low survival rate. The expression of VEGF could be considered to be one of useful prognostic factor in human gastric carcinoma

Extracorporeal shock-wave lithotripsy of gallbladder stones: 70 cases

No abstract available.