South Korea has one of the highest suicide rates among countries. However, the prevalence of depression in South Korea has been reported to be much lower than in other countries. The current study aims to estimate the prevalence of major depressive disorder using a large representative sample of the South Korean population. The prevalence of depression in a sampled population of one million individuals increased from 2.8% in 2002 to 5.3% in 2013; it was found to increase with the age of the population, and was higher in females than in males for most age groups. A Cox’s proportional hazard model showed that suicide risk was significantly higher in people with depression (hazard ratio [HR] 3.79, 95% CI 3.14–4.58) than those without depression. It was also significantly higher in older people (HR 1.52, 95% CI 1.36–1.70) than in younger people, and in males (HR 2.45, 95% CI 2.02–2.96) than in females. Furthermore, higher income groups were at lower suicide risk as compared to lower income groups (HR 0.88, 95% CI 0.80–0.95). This study using the large representative sample data provided evidence that increased prevalence of depression contributed to the increased risk of suicide in South Korea during the recent decade.

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Cirrhosis occurs as a result of various chronic liver injuries, which may be caused by viral infections, alcohol abuse and the administration of drugs and chemicals. Recently, bone marrow cells (BMCs), hematopoietic stem cells (HSCs) and mesenchymal stem cells (MSCs) have been used for developing treatments for cirrhosis. Clinical trials have investigated the therapeutic potential of BMCs, HSCs and MSCs for the treatment of cirrhosis based on their potential to differentiate into hepatocytes. Although the therapeutic mechanisms of BMC, HSC and MSC treatments are still not fully characterized, the evidence thus far has indicated that the potential therapeutic mechanisms of MSCs are clearer than those of BMCs or HSCs with respect to liver regenerative medicine. MSCs suppress inflammatory responses, reduce hepatocyte apoptosis, increase hepatocyte regeneration, reverse liver fibrosis and enhance liver functionality. This paper summarizes the clinical studies that have used BMCs, HSCs and MSCs in patients with liver failure or cirrhosis. We also present the potential therapeutic mechanisms of BMCs, HSCs and MSCs for the improvement of liver function.

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Background: In this study, we aimed to compare the quality of life (QOL) of single mothers with that of married mothers and to identify the sociodemographic and psychological factors affecting single mothers' QOL. We identified the factors that were similar and different between single and married mothers. Methods:We analyzed survey data obtained from 195 single mothers and 357 married mothers living in an urban community in South Korea. The QOL was assessed with the World Health Organization Quality of Life-abbreviated form (WHOQOL-BREF). All participants completed the following self-report questionnaires: the Global Assessment of Recent Stress, the Center for Epidemiologic Studies-Depression Scale, the Scale for Suicide Ideation, the Korean version of the Alcohol Use Disorder Identification Test, and the WHOQOL-BREF. These self-rating scales were used as continuous variables. Multiple linear regression analysis was performed to examine the association of quality of life with the sociodemographic and psychological factors for single and married mothers. Results: Single mothers showed lower QOL than married mothers. Older age, high income and education level, and professional job status were positively correlated with the QOL of single mothers. Residential instability, higher stress levels, depressive symptoms, suicidal ideation, and alcohol-related problems were negatively associated with the QOL of single mothers. Multiple regression analysis suggested that residential instability (public rental housing: β = − 10.779, p < 0.001; Jeonse rental housing: β = − 0.324, p = 0.01) and alcohol-related problems (β = − 0.522, p < 0.001) were independent factors affecting lower QOL, whereas professional job status (β = 8.452, p = 0.037) was independently associated with higher QOL in single mothers. However, these factors were not associated with the QOL of married mothers. Higher education level was independently associated with higher QOL in both groups (β = 3.149, p < 0.033 in single mothers, β = 12.052, p < 0.001 in married mothers). Conclusions:Higher education level was associated with higher QOL in both groups. Unlike in married mothers, type of residence and occupation (related to the economic level) had a significant impact on QOL in single mothers. Alcohol-related problems were significantly correlated to QOL in single mothers compared to married mothers.

ObjectiveThe purpose of this study was to investigate the risk factors that influence depression among single mothers. MethodsParticipants were 195 single mothers and 357 married mothers living in an urban community in South Korea. All subjects completed self-report questionnaires that included the following self-rating scales: the Global Assessment of Recent Stress, the Center for Epidemiologic Studies-Depression scale, and the Korean version of the Alcohol Use Disorder Identification Test. Multiple logistic regression analysis was performed to examine independent factors affecting single mothers' depression. ResultsThe prevalence of depression differed notably between the single mothers and the control group, at 33% and 8%, respectively. In the single mothers, young age, low income, residential instability, high stress, and high alcohol-related problems were determined to be associated with depression. Furthermore, after adjusting for covariates, living in rental housing (OR = 11.46, 95% CI 1.72-76.46) was found to be an independent risk factor of depression in the single mothers, while stress (OR = 1.16, 95% CI 1.09-1.24) was found to have this effect on the married mothers.

Purpose: We aimed to investigate the expression of FOXM1 and to determine the relationships between FOXM1 expression and clinicopathologic characteristics in patients with PCa. Furthermore, we reconfirmed the prognostic impact of FOXM1 in different cohorts using already published data.Patients and Methods: Formalin-fixed, paraffin-embedded tissues were collected from patients with low- (n=17), intermediate- (n=36), and high-risk (n=29) disease, from patients with CRPC (n=2) and from patients with BPH (n=28). To analyze FOXM1 expression, we performed IHC analyses. Also, we analyzed gene expression data from cBioPortal to evaluate the associations between FOXM1 alteration and prognosis of PCa.Results: FOXM1 expression measured using Allred score differed between patients with BPH, and low-, intermediate-, and high-risk PCa (0.3, 1.5, 4.8, and 6.2, respectively; p<0.001). Patients with high FOXM1 expression had higher preoperative PSA levels (p=0.023), more advanced tumor stages (p=0.047), and higher pathologic Gleason score (p<0.001) than those with low FOXM1 expression. ROC curve analysis indicated that FOXM1 expression was a useful marker for discriminating PCa from BPH (AUC 0.851, 95% CI 0.783-0.920) and for discriminating high-risk PCa from low- and intermediate-risk PCa (AUC 0.807, 95% CI 0.719-0.894). In multivariate analyses, high FOXM1 expression was an independent predictor of BCR. Finally, in the TCGA dataset, FOXM1 alteration was associated with poor overall (p=4.521e-4) and disease-free survival (p=0.0108).Conclusions: In patients with PCa, high FOXM1 expression was associated with advanced tumor stages, high Gleason score, and poor prognosis. These data suggest a role of FOXM1 in biologically and clinically aggressive PCa.