Oligodendroglia Are Primed for Antigen Presentation in Response to Chronic Stress-Induced Microglial-Derived Inflammation.

Chronic stress is a major contributor to the development of major depressive disorder, one of the leading causes of disability worldwide. Using a model of repeated social defeat stress in mice, we and others have reported that neuroinflammation plays a dynamic role in the development of behavioral deficits consistent with social avoidance and impaired reward responses. Animals susceptible to the model also exhibit hypomyelination in the medial prefrontal cortex, indicative of changes in the differentiation pathway of cells of the oligodendroglial lineage (OLN).

Two Years Post-COVID-19: An Ecologic Study Evaluating the Impact on Brazil's Mammographic Screening Program.

Objectives: The objective of this study was to assess the impact of the COVID-19 pandemic, after 2 years, on mammographic screening in Brazil evaluating BIRADS® results, breast cancer diagnosis rates, and breast cancer stage.

Study Design: This was an ecological observational study based on retrospective data from Brazil's mammographic screening program from 2015 to 2023.

Methods: Data were obtained from the national screening database DATASUS - SISCAN (Cancer System Information) and retrieved in March 2024.

Strategies for Confronting the COVID-19 Pandemic in the State of Piauí-Brazil: Contributions to Nursing.

Unlabelled: The COVID-19 pandemic has led to the adoption of rapid, complex, and changeable measures. These measures allowed effective care planning and implementation of emergency management strategies to meet the needs of the population.

Objective: To analyze the influence of the strategies to cope with the COVID-19 pandemic, implemented by the Public Health Network of the State of Piauí, Brazil, as contributions to nursing, on the outcome of cases and deaths.

Real-world evidence of survival outcomes in breast cancer subtypes after neoadjuvant chemotherapy in a Brazilian reference center.

Background: Neoadjuvant chemotherapy (NAC), traditionally used for locally advanced disease, is now applied for operable disease, particularly to treat aggressive breast cancer (BC). This study aimed to characterize the pathological complete response (pCR) and its relationship with overall survival (OS) and disease-free survival (DFS) among BC patients receiving NAC in a Brazilian public reference center, as well as the association between pCR and BC subtypes.

Methods: A retrospective cohort study used a comprehensive BC database from a Brazilian women's health reference center, including patients diagnosed between 2011 and 2020 who underwent NAC.

A complex case of bacterial pericarditis caused by a new pathogenic agent.

is a gram-positive facultative anaerobic agent. It is a human skin colonizer that can be responsible for opportunistic infections in immunocompromised patients. To date, the infections caused by this agent are related to bone, joint, eye, peritoneal dialysis catheters, abscesses or infected vascular grafts.