We have examined the influence of sex and the perceived emotional nature of learned information on pre-learning stress-induced alterations of long-term memory. Participants submerged their dominant hand in ice cold (stress) or warm (no stress) water for 3 min. Thirty minutes later, they studied 30 words, rated the words for their levels of emotional valence and arousal and were then given an im...

Estradiol, progesterone, prolactin and cortisol concentrations are substantially increased during pregnancy. Also, cortisol and prolactin levels are elevated during stress. In the present study, we exposed peripheral blood to estradiol, progesterone, prolactin and cortisol alone or in combination for 24 h before stimulation with T-dependent (phytohemagglutinin, PHA) and independent activators (...

background & aim:  non-steroidal anti-inflammatory drugs (nsaids) are commonly used in clinical medicine. the adverse effects they produce in the gastrointestinal tract however, often limit their utility. oxidative stress has been shown to occur in the small intestine in response to the oral administration of indomethacin. in view of this, the effect of thyme essential oil, an agent with an...

We investigated the seasonal and daily variation in plasma glucose levels in response to stress in captive wild starlings. Starlings were captured from the wild during the winter, held on short days (11L:13D, mimicking winter), and then shifted to long days (19L:5D, mimicking summer). Birds were maintained on long days until they began a prebasic molt, the energetically costly replacement of fe...

Stress has a major impact on the modulation of metabolism, as previously evidenced by hyperglycemia following chronic social defeat (CSD) stress in mice. Although CSD-triggered metabolic dysregulation might predispose to pre-diabetic conditions, insulin sensitivity remained intact, and obesity did not develop, when animals were fed with standard diet (SD). Here, we investigated whether nutritio...

  Background : The major concern in diabetes is increased oxidative stress. Maintaining a balance between reactive oxygen species (ROS) and antioxidants is a major mechanism in preventing damage from oxidative stress. Quercetin (QR) is a well-known flavonoid and a strong antioxidant derived from the onion, Allium cepa, and it has been shown to reduce oxidative stress in the long-term treatment ...

Objective(s): To study the effect of acute and repeated stress on cardioprotection-induced by remote ischemic preconditioning (RIPC).Materials and Methods: RIPC was induced by giving 4 short cycles of ischemia and reperfusion, each consisting of five min. The Langendorff’s apparatus was used to perfuse the isolated rat hearts by subjecti...