The aim of the study was to analyse effects of psychological stress on the neural processing of visceral stimuli in healthy women. The brain functional magnetic resonance imaging blood oxygen level-dependent response to non-painful and painful rectal distensions was recorded from 14 healthy women during acute psychological stress and a control condition. Acute stress was induced with a modified...

In the present study, the effect of acute and chronic immobilization stress on brain acetylcholinesterase (AChE) enzyme activity and cognitive function in mice was investigated. Mice were immobilized by strapping for 150 min. One group of mice were only immobilized once (acute stress) while in another group mice were immobilized (150 min) daily for 5 consecutive days (chronic stress). Specific ...

The rapid and temporary suppression of reproductive behavior is often assumed to be an important feature of the adaptive acute stress response. However, how this suppression operates at the mechanistic level is poorly understood. The enzyme aromatase converts testosterone to estradiol in the brain to activate reproductive behavior in male Japanese quail (Coturnix japonica). The discovery of rap...

In our daily life, individuals encounter with various types of stress. Accumulation of daily life stress (chronic stress) often causes gastrointestinal symptoms and functional gastrointestinal diseases. Although some can adapt toward chronic stress, the adaptation mechanism against chronic stress remains unknown. Although acute stress delays gastric emptying and alters upper gastrointestinal mo...

Cumulative acute psychosocial stress is thought to promote the development of a range of disorders which suggests that biomarkers for the physiological response may become valuable tools for biomedical research and development. The search for these biomarkers has been aided by the development of a standardised protocol for inducing psychosocial stress that combines social-evaluative threat and ...

This study was carried out to examine the effects of acute and chronic stress on hematological parameters in combination with β-adrenergic receptor blockade in rats. In the present study, acute stress is a form of short-term stress induced by a single footshock session, and chronic stress is a form of long-term stress induced by multiple and repetitive footshock sessions. Male Wistar rats were ...

Effects of acute (15h) and chronic (15h x 7 days) immobilization (IM) stress on plasma levels of nicorandil [N-(2-hydroxyethyl) nicotinamide nitrate (ester)] administered orally were examined in rats. The maximum plasma level was reached 30 min after administration. Acute IM stress significantly reduced plasma nicorandil levels both in the absorption and elimination phases (15 min and 2-6h afte...

Acute stress impairs memory retrieval and facilitates the induction of long-term depression (LTD) in the hippocampal CA1 region of the adult rodent brain. However, whether such alterations in synaptic plasticity cause the behavioral effects of stress is not known. Here, we report that two selective inhibitors of the induction or expression of stress-enabled, N-methyl-D-aspartate receptor-depend...

Previous correlational research shows that childhood adversity is associated with earlier age of reproduction in humans and other species. Such studies, however, cannot show that stressful conditions cause earlier reproduction. Using the cold-pressor task, we built on previous work to test the idea that acute stress influences human reproductive and marital ideals, and that individual stress re...

Atopic dermatitis leads to, and can be triggered by, stress. Psychological interventions have been shown to have positive effects on skin status, itch and scratching behaviour. However, it has not been analysed whether stress management leads to a change in physiological stress level and psychophysiological stress reaction under acute stress in this patient group. In this study 28 patients with...