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Salivary cortisol and affective responses to acute psychosocial stress among adolescents.
Psychoneuroendocrinology
December 2024
University of California, Irvine, Department of Psychological Science, Irvine, CA, USA; University of California Los Angeles, Cousins Center for Psychoneuroimmunology, Los Angeles, CA, USA.
Background: Acute psychosocial stress activates the hypothalamic-pituitary-adrenal (HPA) axis and triggers the release of cortisol, a commonly used biomarker of stress reactivity. Yet only 25 % of studies have reported a correlation between cortisol and affective responses to stress. This study aimed to examine whether cortisol reactivity following an acute psychosocial stressor in the laboratory correlated with concurrent positive and negative affect in adolescents, and whether early life adversity (ELA) moderated this relationship.
View Article and Find Full Text PDFEmotional Stress in Cardiac and Vascular Diseases.
Curr Vasc Pharmacol
January 2025
Department of Cardiology, Ippokrateio University Hospital, Athens, Greece.
Introduction/objective: Emotional, mental, or psychological distress, defined as increased symptoms of depression, anxiety, and/or stress, is common in patients with chronic diseases, such as cardiovascular (CV) disease (CVD).
Methods: Literature was reviewed regarding data from studies and meta-analyses examining the impact of emotional stress on the occurrence and outcome of several CVDs (coronary disease, heart failure, hypertension, arrhythmias, stroke). These influences' pathophysiology and clinical spectrum are detailed, tabulated, and pictorially illustrated.
Basic Science and Pathogenesis.
Alzheimers Dement
December 2024
Albany Medical College, Albany, NY, USA.
Background: Stress is a common modifiable risk factor for AD, which increases dementia risk 2-fold. During the stress response, the hypothalamic-pituitary adrenal (HPA) axis is activated which stimulates the release of stress hormones called glucocorticoids into the blood stream. Studies on early-life stress have shown a glucocorticoid dependent vulnerability towards late-life inflammation.
View Article and Find Full Text PDFMaternal immune activation by toll-like receptor 7 agonist during mid-gestation increases susceptibility to blood-brain barrier leakage after puberty.
Brain Behav Immun Integr
December 2024
Biomedical Sciences, Colorado State University, Fort Collins, CO, United States.
Maternal immune activation (MIA), a maternal stressor, increases risk for neuropsychiatric diseases, such as Major Depressive Disorder in offspring. MIA of toll-like receptor 7 (TLR7) initiates an immune response in mother and fetuses in a sex-selective manner. The paraventricular nucleus of the hypothalamus (PVN), a brain region that is sexually dimorphic and regulates hypothalamic-pituitary-adrenal (HPA) stress responses, have been tied to stress-related behaviors (i.
View Article and Find Full Text PDFThe brain's action-mode network.
Nat Rev Neurosci
January 2025
Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA.
The brain is always intrinsically active, using energy at high rates while cycling through global functional modes. Awake brain modes are tied to corresponding behavioural states. During goal-directed behaviour, the brain enters an action-mode of function.
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