Pain Prevalence in two Italian Hospitals. An observational study

Introduction: Pain is the most common and distressing medical symptom in hospitalized patients in all wards. Pain prevalence among hospitalized patients is an indicator of the quality of health care. Objective: The aim of this study is to describe pain prevalence in two Italian hospitals. Material and method: This is an observational study. It involved hospitalized patients of both sexes, able and unable to self-report. Descriptive analysis and multivariate analysis were applied. Results: A sample of 754 inpatients were included. In Terni Ho-spital (n = 255), pain prevalence was 80.8%. The mean pain severity was 5.2 (sd \ub1 3.33). At Rome's San Camillo Hospital (n=499), pain prevalence was 46.9%. Acute pain is more prevalent in women (OR= 0.65; CI 95% 0.43-0.99) and increases with age (OR= 0.97; CI 95% 0.96-0.99). Chronic pain is more prevalent in men (OR= 2.34; CI 95% 1.41-3.97) and increases with age (OR= 1.04; CI 95% 1.03-1.06). Discussion and conclusion.: San Camillo Hospital presents data showing reduced pain prevalence, and describing pain even in patients unable to self-report. It is reasonable to believe that pain control by the staff at San Camillo is better, even though both hospitals are equally important regional institutions

Impaired glucocorticoid-mediated HPA axis negative feedback induced by juvenile social isolation in male rats

We previously demonstrated that socially isolated rats at weaning showed a significant decrease in corticosterone and adrenocorticotropic hormone (ACTH) levels, associated with an enhanced response to acute stressful stimuli. Here we shown that social isolation decreased levels of total corticosterone and of its carrier corticosteroid-binding globulin, but did not influence the availability of the free active fraction of corticosterone, both under basal conditions and after acute stress exposure. Under basal conditions, social isolation increased the abundance of glucocorticoid receptors, while it decreased that of mineralocorticoid receptors. After acute stress exposure, socially isolated rats showed long-lasting corticosterone, ACTH and corticotrophin releasing hormone responses. Moreover, while in the hippocampus and hypothalamus of group-housed rats glucocorticoid receptors expression increased with time and reached a peak when corticosterone levels returned to basal values, in socially isolated rats expression of glucocorticoid receptors did not change. Finally, social isolation also affected the hypothalamic endocannabinoid system: compared to group-housed rats, basal levels of anandamide and cannabinoid receptor type 1 were increased, while basal levels of 2-arachidonoylglycerol were decreased in socially isolated rats and did not change after acute stress exposure. The present results show that social isolation in male rats alters basal HPA axis activity and impairs glucocorticoid-mediated negative feedback after acute stress. Given that social isolation is considered an animal model of several neuropsychiatric disorders, such as generalized anxiety disorder, depression, post-traumatic stress disorder and schizophrenia, these data could contribute to better understand the alterations in HPA axis activity observed in these disorders