Clozapine prevented social interaction deficits and reduced c-Fos immunoreactivity expression in several brain areas of rats exposed to acute restraint stress.

In the present study, we evaluate the effect of acute restraint stress (15 min) of male Wistar rats on social interaction measurements and c-Fos immunoreactivity (c-Fos-ir) expression, a marker of neuronal activity, in areas involved with the modulation of acute physical restraint in rats, i.e., the paraventricular nucleus of the hypothalamus (PVN), median raphe nucleus (MnR), medial prefrontal cortex (mPFC), cingulate prefrontal cortex (cPFC), nucleus accumbens (NaC), hippocampus (CA3), lateral septum (LS) and medial amygdala (MeA). We considered the hypothesis that restraint stress exposure could promote social withdrawal induced by the activation of the hypothalamic-pituitary-adrenocortical (HPA) axis, and increase c-Fos expression in these limbic forebrain areas investigated. In addition, we investigated whether pretreatment with the atypical antipsychotic clozapine (5 mg/kg; I.P.) could attenuate or block the effects of restraint on these responses. We found that restraint stress induced social withdrawal, and increased c-Fos-ir in these areas, demonstrating that a single 15 min session of physical restraint of rats effectively activated the HPA axis, representing an effective tool for the investigation of neuronal activity in brain regions sensitive to stress. Conversely, pretreatment with clozapine, prevented social withdrawal and reduced c-Fos expression. We suggest that treatment with clozapine exerted a preventive effect in the social interaction deficit, at least in part, by blocking the effect of restraint stress in brain regions that are known to regulate the HPA-axis, including the cerebral cortex, hippocampus, hypothalamus, septum and amygdala. Further experiments will be done to confirm this hypothesis.

Sociocognição e saúde mental: a 'leitura do outro' no cuidado em saúde / Cognición social y salud mental: la 'lectura de la mente' en la assistencia a salud / Social cognition and mental health: the mindreading in the healthcare work

RESUMO. Teoria da mente é a habilidade sociocognitiva de inferir pensamentos, sentimentos e intenções. É uma habilidade que sustenta as relações sociais e parece particularmente relevante para o exercício de certas atividades que estão ligadas à 'leitura do outro', como a prática de profissionais que exercem o cuidado em equipamentos de saúde, como ocorre nos Centros de Atenção Psicossocial. Este estudo teórico teve o objetivo de analisar a importância das habilidades sociocognitivas para o trabalho em saúde, especialmente na saúde mental, a fim de identificar e discutir possíveis fatores que podem ter impacto na inferência que os profissionais fazem a respeito do que os usuários do serviço estão pensando, sentindo ou querendo. A análise permitiu observar as formas pelas quais a teoria da mente pode se tornar importante ferramenta para o profissional no processo terapêutico. Além disso, foi possível identificar que, no formato em que tem funcionado atualmente, o trabalho em Centros de Atenção Psicossocial tem exposto o profissional a diversos estressores que parecem produzir efeitos em suas habilidades sociocognitivas, podendo prejudicar não apenas sua saúde como também o exercício do cuidado.

RESUMEN. Teoría de la mente es la capacidad sociocognitiva de inferir pensamientos, sentimientos e intenciones. Es una habilidad que apoya las relaciones sociales y parece particularmente relevante para el ejercicio de determinadas actividades que están vinculadas a 'leer al otro', como la práctica de los profesionales que brindan atención en equipos de salud, como ocurre en los Centros de Atención Psicosocial. Este estudio teórico tuvo como objetivo analizar la importancia de las habilidades socio-cognitivas para el trabajo en salud, especialmente en salud mental, buscando identificar y discutir posibles factores que pueden incidir en la inferencia que hacen los profesionales sobre lo que piensan, sienten o sienten los usuarios del servicio. El análisis permitió observar las formas en que la teoría de la mente puede convertirse en una herramienta importante para los profesionales en el proceso terapéutico. Además, se pudo identificar que, en el formato en el que se ha operado actualmente, el trabajo en Centros de Atención Psicosocial ha expuesto a los profesionales a diversos estresores que parecen afectar sus habilidades sociocognitivas, los cuales pueden perjudicar no solo su salud sino también el ejercicio del cuidado.

ABSTRACT. Theory of mind is a social cognition ability to infer thoughts, feelings and intentions. It is a skill that underpins social relationships and seems particularly relevant to the exercise of certain activities linked to mindreading, such as healthcare practice, for example, in Psychosocial Care Centers. This theoretical study aims to analyze the importance of social cognition skills for mental health practitioners, seeking to identify and discuss possible factors that impact how these professionals infer what service users are thinking, feeling or wanting. The analysis allowed us to observe how the theory of mind can become an important tool for professionals in the therapeutic process. In particular, the study concludes that work in Psychosocial Care Centers has exposed professionals to various stressors that seem to have an effect on their social cognition skills, which can harm not only their health but also their ability to attend to the needs of service users.

A comparison between two different definitions of contrast-induced acute kidney injury in patients with ST-segment elevation myocardial infarction undergoing primary percutaneous coronary intervention.

BACKGROUND: Contrast-induced acute kidney injury (CI-AKI) is associated with significantly increased mortality after primary percutaneous coronary intervention (pPCI) for ST-segment elevation myocardial infarction (STEMI). The prognostic value of CI-AKI depends on the definitions used to define it. We compare the predictive accuracy of long-term mortality of two definitions of CI-AKI on consecutive patients undergoing pPCI for STEMI. METHODS: Incidence, risk factors and long-term prognosis of CI-AKI were assessed according to two different definitions: the first as an increase in serum creatinine ≥ 25% or ≥ 0.5 mg/dl from baseline within 72 h after pPCI (contrast-induced nephropathy (CIN) criteria), the second one according to Acute Kidney Injury Network (AKIN) classification system. RESULTS: A total of 402 patients were enrolled. The median follow-up period was 12 ± 4 months. Long-term mortality rate was 9.5%. Independent predictors of long-term mortality were: older age, basal renal impairment, left ventricular ejection fraction <40%, in-hospital major bleedings and CI-AKI. A significant correlation was found between mortality and CI-AKI as assessed by both CIN (HR 4.84, 95% CI: 2.56-9.16, p=0.000) and AKIN (HR 9.70, 95% CI: 5.12-18.37, p=0.000) definitions. The area under the receiver operating curve was significantly larger for predicting mortality with AKIN classification than with CIN criteria (0.7984 versus 0.7759; p=0.0331). CONCLUSIONS: In patients with STEMI treated by pPCI, CI-AKI is a frequent complication irrespective of the criteria used for its definition. AKIN, however, seems to provide a better accuracy in predicting long-term mortality than CIN criteria.