The Role of Single Nucleotide Polymorphisms in Beta-2 Adrenergic Receptors in the Severity of Obstructive Sleep Apnea Syndrome in Pediatric Patients.

Background: Obstructive sleep apnea syndrome (OSAS) is a chronic syndrome, affecting about 1%-5% of children. OSAS is characterized by increased resistance and collapse of the upper airways, with different degrees of severity requiring interventions ranging from lifestyle modifications to surgery. Sympathetic activity is increased in OSAS, and the reduction of disease symptoms, occurring after adenotonsillectomy, correlates with biomarkers indicating a reduced sympathetic response.

Self-experience of a negative event alters responses to others in similar states through prefrontal cortex CRF mechanisms.

Our own experience of emotional events influences how we approach and react to others' emotions. Here we observe that mice exhibit divergent interindividual responses to others in stress (that is, preference or avoidance) only if they have previously experienced the same aversive event. These responses are estrus dependent in females and dominance dependent in males.

Fluvial erosion in a catchment cultivated with no-tillage at the edge of the southern Brazilian plateau.

The dynamics of fluvial erosion responds to soil erosion and surface runoff on hillslopes due to land use and environmental fragility, conditioned by the soil, geology, relief, and rainfall rate. Despite the increasing problems associated with fluvial erosion in Brazil, little information is available on bedload transport in headwater catchments under intense agricultural activity. Therefore, this study sought to characterize the fluvial erosion processes and bedload dynamics in an experimental catchment in southern Brazil located at the edge of the Brazilian Meridional plateau, which is representative of a large area of high environmental fragility and intense agricultural activity in Southern Brazil.

Emotions in multi-brain dynamics: A promising research frontier.

Emotions drive and influence social interactions. Actions and reactions driven by emotions are dynamically modulated by continuous feedback loops between all interacting subjects. In this framework, interacting brains operate as an integrated system, with neural dynamics coevolving over time.