UNLABELLED The aim of this study was to evaluate immune function in acute stress in medical students before academic examinations. Twenty-five medical students were selected because they presented intense acute stress, evaluated by the presence of the following classic signs: cold hands, intense sudoresis in the extremities, generalized sudoresis, paleness, tachycardia, confused reasoning, nerv...

Over the past 20 years we have demonstrated both in animal models and in human studies that stress increases neuroendocrine hormones, particularly glucocorticoids and catecholamines but to some extent also prolactin, growth hormone and nerve growth factor. We have also shown that stress, through the action of these stress hormones, has detrimental effects on immune function, including reduced N...

introduction: the aim of the present study was to evaluate the effect of exercise training and l-arginine supplementation on oxidative stress and systolic ventricular function in rats with myocardial infarction (mi). methods: four weeks after the surgically-induced mi, 40 male wistar rats were randomly assigned to the following 4 groups (n=10): mi-sedentary control (sed) mi-exercise (ex) mi-sed...

early life events influence life-long patterns of emotionality and stress responsiveness and alter the rate of brain and body aging.  much research attention has focused on the programming effects of the hypothalamus pituitary axis (hpa) in early life and on understanding hpa function in response to stressors in adulthood. in comparison, there has been relatively little research on adolescence,...

war is an effective factor in incidence and promotion of psychological and behavioral problems such as post-traumatic stress disorder. this study aimed to determine the quality of life and its correlation with age and percent of injury in war veterans with post-traumatic stress disorder. this was a cross-sectional study, which included 70 war veterans with post-traumatic stress disorder. this s...

introduction: during hemorrhagic shock (hs), the kidneys are one of the primary target organs involved. oxidative stress is shown to be enhanced in different models of acute kidney injury (aki). remote ischemic preconditioning (rpc) by brief limb ischemia is considered to be a safe method to protect different organs from further damage. in this study, we investigated the effects of brief hind l...