RESUMEN
AIM: To assess the level of self-efficacy in patients with heart failure (HF), and identify differences between important subgroups including sex, and to identify the determinants of high self-efficacy. METHODS AND RESULTS: This was a pooled cross-sectional analysis of 2,030 patients from four prospective studies conducted within the German Competence Network Heart Failure. We used the Self-efficacy Subscale and the Overall Summary Score (OSS) of the Kansas City Cardiomyopathy Questionnaire (KCCQ-23) to assess self-efficacy and health-related quality of life. The cut-off of 75 score points was used for the dichotomization into high (≥75) vs low (<75) self-efficacy. Depressive symptoms were measured by the Patient Health Questionnaire (PHQ-9). A total of 1,615 patients with HF provided complete self-efficacy scores: mean age 66.6±12.3 years, 431 (27%) women. Mean self-efficacy was 67.5±24.9, with 907 patients (56.2%) showing high self-efficacy and 708 patients (43.8%) showing low self-efficacy. Men had higher self-efficacy scores than women (68.7±24.5 vs. 64.2±26.0; p=0.001). Multivariable logistic regression identified KCCQ-OSS (OR per 5-point increase 1.08, 95%CI 1.04-1.12), female sex (OR 0.72, 95%CI 0.56-0.94), depressive symptoms (OR per 3-point increase in PHQ-9 0.90, 95%CI 0.83-0.98), and acute HF (0.46, 95% CI 0.34-0.62) as important predictors of high self-efficacy. CONCLUSION: In patients with HF, women seemed to exhibit lower self-efficacy than men. Health-related quality of life and psychological well-being were dominant determinants of self-efficacy. Future studies should investigate the role of self-efficacy as a therapeutic target for tailored and sex-specific nursing interventions.
RESUMEN
Aspergillus fumigatus causes life-threatening opportunistic infections in immunocompromised patients. As therapeutic outcomes of invasive aspergillosis (IA) are often unsatisfactory, the development of targeted immunotherapy remains an important goal. Linking the innate and adaptive immune system, dendritic cells are pivotal in anti-Aspergillus defense and have generated interest as a potential immunotherapeutic approach in IA. While monocyte-derived dendritic cells (moDCs) require ex vivo differentiation, antigen-pulsed primary myeloid dendritic cells (mDCs) may present a more immediate platform for immunotherapy. To that end, we compared the response patterns and cellular interactions of human primary mDCs and moDCs pulsed with an A. fumigatus lysate and two A. fumigatus proteins (CcpA and Shm2) in a serum-free, GMP-compliant medium. CcpA and Shm2 triggered significant upregulation of maturation markers in mDCs and, to a lesser extent, moDCs. Furthermore, both A. fumigatus proteins elicited the release of an array of key pro-inflammatory cytokines including TNF-α, IL-1ß, IL-6, IL-8, and CCL3 from both DC populations. Compared to moDCs, CcpA- and Shm2-pulsed mDCs exhibited greater expression of MHC class II antigens and stimulated stronger proliferation and IFN-γ secretion from autologous CD4+ and CD8+ T-cells. Moreover, supernatants of CcpA- and Shm2-pulsed mDCs significantly enhanced the oxidative burst in allogeneic neutrophils co-cultured with A. fumigatus germ tubes. Taken together, our in vitro data suggest that ex vivo CcpA- and Shm2-pulsed primary mDCs have the potential to be developed into an immunotherapeutic approach to tackle IA.