OBJECTIVE The authors prospectively examined the power of peritraumatic dissociation and acute stress symptoms in predicting posttraumatic stress disorder (PTSD) symptoms. METHOD Thirty-five assault victims were assessed with the Peritraumatic Dissociative Experiences Questionnaire within 24 hours of the assault. Participants were reassessed 2 weeks after the trauma with the Stanford Acute St...

objective: lc/na system is activator of hypothalamic–pituitar–adrenal (hpa) axis and cold stress triggers an equally robust increase in plasma na. increased lhrh content probably due to absence or decrease of ne release from the lc and positive feedback action of e2 on lh secretion show that in late proestrous phase na, lh and e2 have a strong link. this study was conducted to evaluate the effe...

Soybeans (Glycine max Merr.) were grown at elevated carbon dioxide concentration ([CO(2)]) or chronic elevated ozone concentration ([O(3)]; 90 ppb), and then exposed to an acute O(3) stress (200 ppb for 4 h) in order to test the hypothesis that the atmospheric environment alters the total antioxidant capacity of plants, and their capacity to respond to an acute oxidative stress. Total antioxida...

Everyone experiences stress. That stress may be related to work (internal), community (external), or family; it may be cumulative or related to a particular critical incident. The cost related to treating acute stress is staggering, both to individuals and to organizations. Critical care nurses are well educated in the physiological responses to the stress of acute illness. Recognizing the emot...

It is nearly 20 years since DSM-IV introduced the diagnosis of acute stress disorder (ASD). At the time there was relatively little research substantiating the role or definition of diagnosis, but its introduction promoted an unprecedented amount of research into acute stress reactions after trauma. As we approach the introduction of DSM-5, it is timely to review what we now know about acute tr...

UNLABELLED Cognitive and affective responses to acute stress influence pro-inflammatory cytokine reactivity, and peripheral cytokines (particularly interleukin-1 beta (IL-1β)), can act on the brain to promote depressive symptoms. It is unknown whether acute stress-induced changes in positive affect and cognitions (POS) and pro-inflammatory reactivity predict future depressive symptoms. We exami...

Noise is a widespread stress resource that may lead to detrimental effects on the health. However, the molecular basis of the stress response caused by noise remains elusive. We have studied the effects of acute and chronic noise stress on stress-related molecules in the hypothalamus and hippocampus and also corticosterone responses. Sprague Dawley rats were randomized into control, acute and c...

The amygdala is a critical component of the neuroanatomical stress circuit. It plays a role in the generation of responses to emotional stimuli. The central (CeA) and medial (MeA) amygdaloid nuclei are implicated in activation of the hypothalamic-pituitary-adrenocortical (HPA) axis. The immunoreactivity (-ir) of c-Fos, NGF and its receptor, TrkA, following acute and chronic open-field stress we...

The present study was designed to determine the role of central vasopressin 1 receptors (V(1)R) in the regulation of cardiovascular parameters in chronically stressed infarcted rats and sham-operated rats under resting conditions and during exposure to acute alarming stress. The experiments were performed on four groups of conscious sham-operated and four groups of infarcted rats subjected to i...