Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 47
Filtrar
Mais filtros

País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Cereb Cortex ; 33(5): 2361-2374, 2023 02 20.
Artigo em Inglês | MEDLINE | ID: mdl-35661202

RESUMO

Affective and cognitive information conveyed by persuasive stimuli is evaluated and integrated by individuals according to their behavioral predispositions. However, the neurocognitive structure that supports persuasion based on either affective or cognitive content is poorly understood. Here, we examine the neural and behavioral processes supporting choices based on affective and cognitive persuasion by integrating 4 information processing features: intrinsic brain connectivity, stimulus-evoked brain activity, intrinsic affective-cognitive orientation, and explicit target evaluations. We found that the intrinsic cross-network connections of a multimodal fronto-parietal network are associated with individual affective-cognitive orientation. Moreover, using a cross-validated classifier, we found that individuals' intrinsic brain-behavioral dimensions, such as affective-cognitive orientation and intrinsic brain connectivity, can predict individual choices between affective and cognitive targets. Our findings show that affective- and cognitive-based choices rely on multiple sources, including behavioral orientation, stimulus evaluation, and intrinsic functional brain architecture.


Assuntos
Encéfalo , Comunicação Persuasiva , Humanos , Encéfalo/fisiologia , Cognição/fisiologia , Mapeamento Encefálico , Imageamento por Ressonância Magnética
2.
J Low Genit Tract Dis ; 28(3): 264-275, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38697126

RESUMO

OBJECTIVES: We set out to identify the psychosocial factors associated with vulvodynia and the effects on sexuality, mental health, and quality of life. MATERIALS AND METHODS: PubMed, LILACS, Embase, CINAHL, Web of Science, Scopus, and PsycINFO were searched in August 2023. Two authors selected and extracted the data independently. The risk of bias was assessed using the Newcastle-Ottawa Scale for Observational Studies. To rank the strength of evidence, the Grading of Recommendations Assessment, Development and Evaluation Working Group (GRADE) approach was utilized. RESULTS: A total of 3,182 articles were identified. Twenty-two observational studies (8 cohorts and 14 case-controls) met the eligibility criteria and were included, comprising 2,624 patients. Vulvodynia has been associated with psychological factors (anxiety and depression) and social factors (childhood exposure to physical and sexual abuse, posttraumatic stress, and domestic abuse). Concerning sexual function, the most frequent outcomes were dyspareunia and sexual dysfunction. Only one study assessed quality of life, which showed that women with chronic vulvar pain had greater difficulty performing physical activities and experienced negative moods and feelings. The assessment of the risk of bias showed that the average quality of studies was good to excellent. However, the studies failed to select the nonexposed cohort or control group to describe the results, and often, the study population was rather small, which made it impossible to carry out a meta-analysis. CONCLUSIONS: The certainty of evidence for the associations between anxiety and depression, vulvodynia, and sexual functioning suggests that combating these factors could improve overall quality of life in vulvodynia patients.


Assuntos
Qualidade de Vida , Vulvodinia , Humanos , Vulvodinia/psicologia , Feminino , Qualidade de Vida/psicologia , Adulto , Pessoa de Meia-Idade , Depressão/psicologia , Ansiedade/psicologia
3.
Behav Pharmacol ; 33(8): 575-588, 2022 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-36256730

RESUMO

During pregnancy, women are prone to depression, for which selective serotonin reuptake inhibitors (SSRIs), such as fluoxetine, are usually the first-line treatment. However, fluoxetine can cross the placental barrier and affect fetuses, causing changes in serotonin levels early in life. Long-term effects in the brain circuits that control cognitive and emotional behavior are related to early fluoxetine exposure during development. In this study, we aimed to investigate whether fluoxetine exposure (10 mg/kg/day) from the 13th gestational day (GD13) to GD21 may lead to behavioral emotional-cognitive changes in male and female rat offspring approximately 90 days postnatally (~PN90). We have analyzed the performance of individuals in the open field and in the plus-maze discriminative avoidance task, which assesses anxiety and learning/memory processing behaviors. We have found that prenatal (GD13-GD21) exposure to fluoxetine strengthened aversive memory and induced higher anxiety levels in males, and quick extinction of aversive memory in females. Taken together, these results suggest that early exposure to fluoxetine impairs the basal state of anxiety and the cognitive functions of rats during adulthood, which may be in a sex-specific manner because males appear more susceptible than females.


Assuntos
Fluoxetina , Efeitos Tardios da Exposição Pré-Natal , Ratos , Feminino , Animais , Masculino , Gravidez , Humanos , Fluoxetina/farmacologia , Placenta , Inibidores Seletivos de Recaptação de Serotonina/farmacologia , Ansiedade/induzido quimicamente
4.
Cogn Affect Behav Neurosci ; 20(3): 536-550, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32185623

RESUMO

The present study investigates the neural pathways underlying individual susceptibility to affective or cognitive information in persuasive communication, also known as the structural matching effect. Expanding on the presumed involvement of the ventromedial prefrontal cortex (vMPFC) in persuasion, we hypothesized that the vMPFC contributes to the evaluation of persuasive information depending on its match with the recipient's affective or cognitive predominance. During functional magnetic resonance imaging, 30 participants evaluated 10 consumable products presented with both affective and cognitive persuasive messages. All participants were characterized on a continuum regarding their personal orientation in terms of individual differences in need for affect (NFA) and need for cognition (NFC). The results showed that the vMPFC, posterior cingulate cortex, and cerebellum are more strongly activated when the persuasive message content, either affective or cognitive, matched the recipient's individual affective or cognitive orientation. Interestingly, this effect in the vMPFC was found specifically when participants evaluated the products presented by the persuasive messages, whereas the correlation in the posterior cingulate cortex and cerebellum activity was detected when reading the messages. These results confirm the hypothesis that the vMPFC plays a role in subjectively weighting persuasive message content depending on individual differences in affective and cognitive orientation. Such a structural matching effect might involve the vMPFC particularly during explicit expressions of subjective valuations. These novel findings also further develop the conceptualization of the role of the vMPFC in self-related processing.


Assuntos
Afeto/fisiologia , Cognição/fisiologia , Individualidade , Julgamento/fisiologia , Comunicação Persuasiva , Córtex Pré-Frontal/fisiologia , Adolescente , Adulto , Mapeamento Encefálico , Cerebelo/diagnóstico por imagem , Cerebelo/fisiologia , Comportamento do Consumidor , Feminino , Giro do Cíngulo/diagnóstico por imagem , Giro do Cíngulo/fisiologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Córtex Pré-Frontal/diagnóstico por imagem , Adulto Jovem
5.
Lasers Med Sci ; 33(6): 1245-1254, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29473115

RESUMO

Investigations suggest the benefits of low-level laser therapy (LLLT) to improve noninvasive body contouring treatments, inflammation, insulin resistance and to reduce body fat. However, the mechanism for such potential effects in association with exercise training (ET) and possible implications in browning adiposity processes remains unclear. Forty-nine obese women were involved, aged between 20 and 40 years with a body mass index (BMI) of 30-40 kg/m2. The volunteers were divided into Phototherapy (808 nm) and SHAM groups. Interventions consisted of exercise training and phototherapy applications post exercise for 4 months, with three sessions/week. Body composition, lipid profile, insulin resistance, atrial natriuretic peptide (ANP), WNT5 signaling, interleukin-6 (IL-6), and fibroblast growth factor-21 (FGF-21) were measured. Improvements in body mass, BMI, body fat mass, lean mass, visceral fat, waist circumference, insulin, HOMA-IR, total cholesterol, LDL-cholesterol, triglycerides, and ANP in both groups were demonstrated. Only the Phototherapy group showed a reduction in interleukin-6 and an increase in WNT5 signaling. In addition, it was possible to observe a higher magnitude change for the fat mass, insulin, HOMA-IR, and FGF-21 variables in the Phototherapy group. In the present investigation, it was demonstrated that exercise training associated with LLLT promotes an improvement in body composition and inflammatory processes as previously demonstrated. The Phototherapy group especially presented positive modifications of WNT5 signaling, FGF-21, and ANP, possible biomarkers associated with browning adiposity processes. This suggests that this kind of intervention promotes results applicable in clinical practice to control obesity and related comorbidities.


Assuntos
Tecido Adiposo/patologia , Biomarcadores/metabolismo , Transdiferenciação Celular/efeitos da radiação , Exercício Físico/fisiologia , Terapia com Luz de Baixa Intensidade , Obesidade/fisiopatologia , Obesidade/radioterapia , Adulto , Índice de Massa Corporal , Feminino , Humanos , Inflamação , Insulina/metabolismo , Resistência à Insulina , Gordura Intra-Abdominal , Fototerapia , Transdução de Sinais , Proteína Wnt-5a/metabolismo , Adulto Jovem
6.
Exp Brain Res ; 233(8): 2461-6, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26003126

RESUMO

The ability to form shared task representations is considered a keystone of social cognition. It remains, however, contentious if, and to what extent, social categorization impacts on shared representations. In the present study, we address the possibility of the modulation of action co-representation by social categorization, such as group membership and social status, as indexed by the social Simon effect. Italian participants were requested to perform a social Simon task, along with either an Italian (high-status in-group) or an Albanian (low-status out-group) participant. Results show that Italian participants co-represented the action of their partner when paired with a high-status in-group participant. Conversely, this effect was absent when they performed the task with a low-status out-group participant. Furthermore, the Albanian participants co-represented the action of their partner when paired with an Italian participant. These results suggest that group membership modulates action co-representation through the varying of the groups' relative status. The impact of this issue is boundless given the increasing multicultural nature of our society. Indeed, if multiculturalism fails, modern society does likewise.


Assuntos
Comportamento Cooperativo , Desempenho Psicomotor/fisiologia , Classe Social , Identificação Social , Adulto , Albânia , Humanos , Itália , Masculino , Adulto Jovem
7.
Lasers Med Sci ; 30(5): 1553-63, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25958170

RESUMO

Recently, investigations suggest the benefits of low-level laser (light) therapy (LLLT) in noninvasive treatment of cellulite, improvement of body countering, and control of lipid profile. However, the underlying key mechanism for such potential effects associated to aerobic plus resistance training to reduce body fat and inflammatory process, related to obesity in women still unclear. The purpose of the present investigation was to evaluate the effects of combined therapy of LLLT and aerobic plus resistance training in inflammatory profile and body composition of obese women. For this study, it involved 40 obese women with age of 20-40 years. Inclusion criteria were primary obesity and body mass index (BMI) greater than 30 kg/m(2) and less than 40 kg/m(2). The voluntaries were allocated in two different groups: phototherapy group and SHAM group. The interventions consisted on physical exercise training and application of phototherapy (808 nm), immediately after the physical exercise, with special designed device. Proinflammatory/anti-inflammatory adipokines were measured. It was showed that LLLT associated to physical exercise is more effective than physical exercise alone to increase adiponectin concentration, an anti-inflammatory adipokine. Also, it showed reduced values of neck circumference (cm), insulin concentration (µU/ml), and interleukin-6 (pg/ml) in LLLT group. In conclusion, phototherapy can be an important tool in the obesity, mostly considering its potential effects associated to exercise training in attenuating inflammation in women, being these results applicable in the clinical practices to control related risk associated to obesity.


Assuntos
Lasers Semicondutores/uso terapêutico , Terapia com Luz de Baixa Intensidade , Obesidade/radioterapia , Treinamento Resistido , Adiponectina/sangue , Tecido Adiposo , Adulto , Biomarcadores/sangue , Índice de Massa Corporal , Terapia Combinada , Feminino , Humanos , Mediadores da Inflamação/sangue , Insulina/sangue , Interleucina-6/sangue , Lipídeos/sangue , Obesidade/sangue , Obesidade/patologia , Resultado do Tratamento , Redução de Peso , Adulto Jovem
8.
Int J Dev Neurosci ; 84(3): 163-176, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38488315

RESUMO

INTRODUCTION: Recent research indicates that some brain structures show alterations in conditions such as Autism Spectrum Disorder (ASD). Among them, are the basal ganglia that are involved in motor, cognitive and behavioral neural circuits. OBJECTIVE: Review the literature that describes possible volumetric alterations in the basal ganglia of individuals with ASD and the impacts that these changes have on the severity of the condition. METHODOLOGY: This systematic review was registered in the design and reported according to the PRISMA Items and registered in PROSPERO (CRD42023394787). The study analyzed data from published clinical, case-contemplate, and cohort trials. The following databases were consulted: PubMed, Embase, Scopus, and Cochrane Central Register of Controlled Trials, using the Medical Subject Titles (MeSH) "Autism Spectrum Disorder" and "Basal Ganglia". The last search was carried out on February 28, 2023. RESULTS: Thirty-five eligible articles were collected, analyzed, and grouped according to the levels of alterations. CONCLUSION: The present study showed important volumetric alterations in the basal ganglia in ASD. However, the examined studies have methodological weaknesses that do not allow generalization and correlation with ASD manifestations.


Assuntos
Transtorno do Espectro Autista , Gânglios da Base , Humanos , Transtorno do Espectro Autista/diagnóstico por imagem , Transtorno do Espectro Autista/patologia , Transtorno do Espectro Autista/fisiopatologia , Gânglios da Base/patologia , Gânglios da Base/diagnóstico por imagem
9.
Lasers Med Sci ; 28(5): 1271-80, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23151893

RESUMO

Obesity and associated dyslipidemia is the fastest growing health problem throughout the world. The combination of exercise and low-level laser therapy (LLLT) could be a new approach to the treatment of obesity and associated disease. In this work, the effects of LLLT associated with exercises on the lipid metabolism in regular and high-fat diet rats were verified. We used 64 rats divided in eight groups with eight rats each, designed: SC, sedentary chow diet; SCL, sedentary chow diet laser, TC, trained chow diet; TCL, trained chow diet laser; SH, sedentary high-fat diet; SHL, sedentary high-fat diet laser; TH, trained high-fat diet; and THL, trained high-fat diet laser. The exercise used was swimming during 8 weeks/90 min daily and LLLT (GA-Al-As, 830 nm) dose of 4.7 J/point and total energy 9.4 J per animal, applied to both gastrocnemius muscles after exercise. We analyzed biochemical parameters, percentage of fat, hepatic and muscular glycogen and relative mass of tissue, and weight percentage gain. The statistical test used was ANOVA, with post hoc Tukey-Kramer for multiple analysis between groups, and the significant level was p < 0.001, p < 0.01, and p < 0.05. LLLT decreased the total cholesterol (p < 0.05), triglycerides (p < 0.01), low-density lipoprotein cholesterol (p < 0.05), and relative mass of fat tissue (p < 0.05), suggesting increased metabolic activity and altered lipid pathways. The combination of exercise and LLLT increased the benefits of exercise alone. However, LLLT without exercise tended to increase body weight and fat content. LLLT may be a valuable addition to a regimen of diet and exercise for weight reduction and dyslipidemic control.


Assuntos
Metabolismo dos Lipídeos/efeitos da radiação , Terapia com Luz de Baixa Intensidade , Condicionamento Físico Animal/fisiologia , Animais , Terapia Combinada , Dieta Hiperlipídica/efeitos adversos , Dislipidemias/sangue , Dislipidemias/terapia , Lipídeos/sangue , Glicogênio Hepático/metabolismo , Glicogênio Hepático/efeitos da radiação , Masculino , Músculo Esquelético/metabolismo , Músculo Esquelético/efeitos da radiação , Obesidade/metabolismo , Obesidade/patologia , Obesidade/terapia , Ratos , Ratos Wistar , Natação/fisiologia
10.
Behav Sci (Basel) ; 13(4)2023 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-37102837

RESUMO

During the COVID-19 pandemic, entire university courses were moved online. This represented a challenge for universities, who were required to move toward an entirely online learning environment without adequate time to manage the change from traditional courses to online courses. However, beyond the emergency of the pandemic, higher education does increasingly incorporate an online learning element, and such a provision does appear to reflect both the desires of modern-day students and university offerings. For this reason, assessing students' online engagement is fundamental, not least because it has been seen to be related both to students' satisfaction and their academic achievement. A validated measure of student online engagement does not exist in Italy. Therefore, this study aims to assess both the factor structure and the validity of the Online Student Engagement (OSE) Scale in the Italian context. A convenience sample of 299 undergraduate university students completed a series of online questionnaires. The Italian OSE scale presents good psychometric properties and represents a valuable instrument for both practitioners and researchers examining students' engagement in online learning.

11.
Exp Physiol ; 97(7): 882-94, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22467759

RESUMO

The aim of this study was to determine the effects of successive cycles of a moderately restrictive diet and refeeding with a high-fat diet on the metabolism of the adipose and hepatic tissues of obese rats. Rats were assigned to the following groups: a chow diet; a high-fat diet; a moderate caloric restriction; or a moderate caloric restriction plus refeeding. Some animals in each group were given [1-(14)C]triolein intragastrically, while others received an intraperitoneal injection of 3 mCi (3)H(2)O. All animals were killed by decapitation. The retroperitoneal, visceral epididymal and omental white adipose tissues, brown adipose tissue, liver and blood were immediately removed. The lipid uptake from the diet, in vivo rate of lipogenesis, percentage of fat, lipid profile and leptin concentration were analysed. The high-fat diet promoted an increase in fatty liver (P ≤ 0.05), adiposity mass (P ≤ 0.05) and the plasma concentration of leptin (P ≤ 0.05) and a decreased lipid uptake in white adipose tissue depots (P ≤ 0.05) in relation to the chow diet. The moderate caloric restriction did not reverse the changes promoted by the high-fat diet but induced a small decrease in adiposity, which was reversed after refeeding, and the animals maintained a dyslipidaemic profile and high fat deposition in the liver. We can conclude that the high-fat diet and subsequent moderate caloric restriction plus refeeding increased the risks of developing visceral obesity, dyslipidaemia and non-alcoholic fatty liver disease, which suggests that this type of experimental protocol can be used to study mechanisms related to the metabolic syndrome.


Assuntos
Restrição Calórica , Privação de Alimentos/fisiologia , Fígado/metabolismo , Tecido Adiposo/metabolismo , Adiposidade , Animais , Dieta Hiperlipídica , Alimentos , Masculino , Ratos , Ratos Wistar
12.
Front Psychol ; 13: 825047, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35222206

RESUMO

The governmental restriction due to COVID-19 pandemic led to Italian Universities moving teaching from face-to-face, to online. This represented an unexpected transition from traditional learning to what can be considered "e-learning." This, together with the psychological distress that may be associated with the experience of lockdown, might have affected students' performance. It was hypothesised that grit may be a protective factor in such situations. Indeed, compared to their less "gritty" peers, individuals with higher levels of grit are expected to exhibit greater persistence in the pursuit of goals despite setbacks. Within educational contexts, grit is portrayed as a potentially important influence on outcomes such as achievement level, retention and probability of graduation. A longitudinal study was conducted using an online survey in order to assess the moderated mediation effect of grit on students' achievement. One hundred seventy-six undergraduate students from two universities in the north of Italy participated in the survey. The results showed that grit affects students' grades in final exams; perceived self-efficacy in the management of complex problems had a mediation effect on grades, while psychological distress moderated the first part of the mediation process. These novel findings extended our knowledge regarding the role of grit in academic performance investigating for the first time the role of self-efficacy and psychological distress in a learning carried out entirely online.

13.
Front Psychol ; 13: 987114, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36312173

RESUMO

Scientific literature about persuasion has shown that the effectiveness of persuasive communication may depend on the match between the affective or cognitive contents of the message and the affective [(Need for Affect (NFA)] or cognitive [Need for Cognition (NFC)] orientation of the recipient. The present work aims to contribute to studying this effect by considering the context of health-related communication during the SARS-CoV-2 infection. Specifically, we aim to demonstrate that, when the message is characterized by affective and cognitive contents having the same (congruent message) or different valence (incongruent message), the attitude toward the target (i.e., a new lockdown) will be guided by the valence of the contents matching the individual affective/cognitive orientation. A total of 1,003 participants took part in a 2 (Cognitive content message: Positive vs. Negative) × 2 (Affective content message: Positive vs. Negative) factorial design and answered an online questionnaire. Results show that people with high levels of NFA and low levels of NFC report attitudes toward lockdown consistent with the valence of the affective contents. Conversely, attitudes of people with high levels of NFC and low levels of NFA were not influenced by contents that matched their orientation (i.e., cognitive).

14.
Front Psychol ; 13: 1090047, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36743647

RESUMO

Introduction: Cyberbullying and cybervictimization are spread worldwide, and due to COVID-19, an increasing number of children and adolescents have been impacted. Since the beginning of the twenty-first century, research has investigated and highlighted the key risk factors for cyberbullying and cybervictimization, and numerous anti-cyberbullying prevention and intervention programs have been developed and assessed for their efficacy. Despite this, no studies have specifically focused on the individual, relational, and contextual risk factors associated with the onset of youth involvement in cyberbullying and cybervictimization. Methods: To address this lacuna, 333 Italian students aged 10-16 years (M = 12.16, SD = 1.35) were involved in a year-long longitudinal study and filled in the anonymous online actuarial Tabby Improved Checklist two times with a 6-month interval. Onset risk factors for cyberbullying and cybervictimization have been separately analyzed by excluding all students involved in cyberbullying from the original sample or in the cybervictimization baseline (T1). Results: The results showed that being male, being involved in school bullying, having low levels of awareness of online risk, and having high levels of affective empathy were all significant onset risk factors for cyberbullying. Similarly, being male, being involved in school bullying and victimization, having high levels of affective empathy, and moral disengagement were onset risk factors for cybervictimization. Conclusion: Given the negative psychological and behavioral consequences of cyberbullying and cybervictimization, this article includes discussions on practical and policy implications for future research, stressing the need to develop, implement, and evaluate the effectiveness of primary prevention programs addressing and managing onset risk factors for cyberbullying and cybervictimization.

15.
Int J Dev Neurosci ; 82(5): 407-422, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35481929

RESUMO

Serotonin (5-HT) reuptake inhibitors, such as fluoxetine, are the most prescribed antidepressant for maternal depression. In this sense, it exposes mothers and the brains of infants to increased modulatory and trophic effects of serotonergic neurotransmission. 5-HT promotes essential brain changes throughout its development, which include neuron migration, differentiation and organisation of neural circuitries related to emotional, cognitive and circadian behavior. Early exposure to the SSRIs induces long-term effects on behavioral and neural serotonergic signalisation. We have aimed to evaluate the circadian rhythm of locomotor activity and the neurochemical content, neuropeptide Y (NPY) and 5-HT in three brain areas: intergeniculate leaflet (IGL), suprachiasmatic nuclei (SCN) and raphe nuclei (RN), at two zeitgebers (ZT6 and ZT18), in male and female rat's offspring early exposed (developmental period GD13-GD21) to fluoxetine (20 mg/kg). First, we have conducted daily records of the locomotor activity rhythm using activity sensors coupled to individual cages over 4 weeks. We have lastly evaluated the immunoreactivity of NPY in both SCN and IGL, as well the 5-HT expression in the dorsal and medial RN. In summary, our results showed that (1) prenatal fluoxetine affects phase entrainment of the rest/activity rhythm at ZT6 and ZT18, more in male than female specimens, and (2) modulates the NPY and 5-HT expression. Here, we show male rats are more susceptible to phase entrainment and the NPY and 5-HT misexpression compared to female ones. The sex differences induced by early exposure to fluoxetine in both the circadian rhythm of locomotor activity and the neurochemical expression into SCN, IGL and midbrain raphe are an important highlight in the present work. Thus, our results may help to improve the knowledge on neurobiological mechanisms of circadian rhythms and are relevant to understanding the "broken brains" and behavioral abnormalities of offspring early exposed to antidepressants.


Assuntos
Ritmo Circadiano , Fluoxetina , Efeitos Tardios da Exposição Pré-Natal , Animais , Antidepressivos , Ritmo Circadiano/fisiologia , Feminino , Fluoxetina/farmacologia , Locomoção , Masculino , Neuropeptídeo Y , Gravidez , Efeitos Tardios da Exposição Pré-Natal/induzido quimicamente , Ratos , Ratos Wistar , Serotonina/metabolismo
16.
Brain Sci ; 12(4)2022 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-35448008

RESUMO

Trait empathy is an essential personality feature in the intricacy of typical social inclinations of individuals. Empathy is likely supported by multilevel neuronal network functioning, whereas local topological properties determine network integrity. In the present functional MRI study (N = 116), we aimed to trace empathic traits to the intrinsic brain network architecture. Empathy was conceived as composed of two dimensions within the concept of pre-reflective, intersubjective understanding. Vicarious experience consists of the tendency to resonate with the feelings of other individuals, whereas intuitive understanding refers to a natural awareness of others' emotional states. Analyses of graph theoretical measures of centrality showed a relationship between the fronto-parietal network and psychometric measures of vicarious experience, whereas intuitive understanding was associated with sensorimotor and subcortical networks. Salience network regions could constitute hubs for information processing underlying both dimensions. The network properties related to empathy dimensions mainly concern inter-network information flow. Moreover, interaction effects implied several sex differences in the relationship between functional network organization and trait empathy. These results reveal that distinct intrinsic topological network features explain individual differences in separate dimensions of intersubjective understanding. The findings could help understand the impact of brain damage or stimulation through alterations of empathy-related network integrity.

17.
Artigo em Inglês | MEDLINE | ID: mdl-33671977

RESUMO

The COVID-19 outbreak has dramatically changed our life. Despite the rapid growth of scientific publications about medical aspects of the pandemic, less has been explored about the effects of media communication regarding COVID-19 on healthy behaviors. Yet, the scientific literature has widely debated on how media can influence people's health-related evaluations, emotions, and behaviors. To fill this gap, the aim of this study was to investigate the relationships between media exposure, people's attitudes and emotions toward media contents, and healthy behaviors related to the use of public spaces, such as avoiding crowded places, wearing face masks, and maintaining social distance. A questionnaire referring to these variables was administered to an opportunistic sample of 174 participants in Italy during the off-peak period of the COVID-19 outbreak and before restrictions to mobility were extended to the whole country. Results showed that media exposure, the perception of social initiatives of prevention, and moderate levels of fear increase healthier behaviors in the use of public spaces. Perceiving alarming information did not significantly predict healthy behaviors in the use of public spaces. Results are discussed with reference to the previous literature. Suggestions to media communication to increase preventive behaviors during emergencies are also provided.


Assuntos
COVID-19 , Comportamentos Relacionados com a Saúde , Meios de Comunicação de Massa , Pandemias , Humanos , Itália , Televisão
18.
Acta Biomed ; 92(3): e2021062, 2021 03 19.
Artigo em Inglês | MEDLINE | ID: mdl-34212909

RESUMO

Vanek's Tumor (inflammatory fibroid polyp) is a rare benign mesenchymal lesion occurring throughout the digestive tract. Classical Vanek's tumor ("gastric") contains concentric formations of proliferating spindle cells, which are CD34 positive. Atypical-inflammatory pseudotumor-like Vanek's tumor ("intestinal") lacks concentric formations and is CD34 negative. A 70-years-old man patient presented during hematochemical routine tests, sideropenic anemia and leukopiastrinosis. The patient performed osteomyelitis biopsy and esophagogastroduodenoscopy (EGD) showing a gastric wall with nodular appearance and, in antrum pre-pyloric, a polypoid pedunculated lesion, measuring approximately 3 cm in diameter, surrounded by hyperemic mucosa. The lesion then was removed by en bloc endoscopic mucosal resection (EMR) and histo-morphological, immune-cytochemical and biomolecular evaluations were performed. The data were compatible with a benign polyp fibroid inflammatory (Vanek's Tumor). The results of this study suggest that endoscopic mucosal resection is a safe and efficacy solution for the resection of these gastrointestinal polyps and the two morphological patterns of Vanek's tumor more probably represent only variants of one type of tumor than two different lesions. BRAF mutations were not shown growth PDGFRA wild-type Vanek's tumor.


Assuntos
Ressecção Endoscópica de Mucosa , Leiomioma , Pólipos , Idoso , Biópsia , Humanos , Leiomioma/cirurgia , Masculino , Mutação , Pólipos/cirurgia
19.
Transl Lung Cancer Res ; 10(3): 1536-1556, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33889528

RESUMO

Treatment of advanced non-small cell lung cancer (NSCLC) has radically improved in the last years due to development and clinical approval of highly effective agents including immune checkpoint inhibitors (ICIs) and oncogene-directed therapies. Molecular profiling of lung cancer samples for activated oncogenes, including epidermal growth factor receptor (EGFR), anaplastic lymphoma kinase (ALK), c-ros oncogene 1 (ROS1) and BRAF, is routinely performed to select the most appropriate up-front treatment. However, the identification of new therapeutic targets remains a high priority. Recently, MET exon 14 skipping mutations have emerged as novel actionable oncogenic alterations in NSCLC, sensitive to MET inhibition. In this review we discuss: (I) MET gene and MET receptor structure and signaling pathway; (II) MET exon 14 alterations; (III) current data on MET inhibitors, mainly focusing on selective MET tyrosine kinase inhibitors (TKIs), in the treatment of NSCLC with MET exon 14 skipping mutations. We identified the references for this review through a literature search of papers about MET, MET exon 14 skipping mutations, and MET inhibitors, published up to September 2020, by using PubMed, Scopus and Web of Science databases. We also searched on websites of main international cancer congresses (ASCO, ESMO, IASLC) for ongoing studies presented as abstracts. MET exon 14 skipping mutations have been associated with clinical activity of selective MET inhibitors, including capmatinib, that has recently received approval by FDA for clinical use in this subgroup of NSCLC patients. A large number of trials are testing MET inhibitors, also in combinatorial therapeutic strategies, in MET exon 14-altered NSCLC. Results from these trials are eagerly awaited to definitively establish the role and setting for use of these agents in NSCLC patients.

20.
Front Aging Neurosci ; 13: 613305, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33716710

RESUMO

Aging affects the overall physiology, including the image-forming and non-image forming visual systems. Among the components of the latter, the thalamic retinorecipient inter-geniculate leaflet (IGL) and ventral lateral geniculate (vLGN) nucleus conveys light information to subcortical regions, adjusting visuomotor, and circadian functions. It is noteworthy that several visual related cells, such as neuronal subpopulations in the IGL and vLGN are neurochemically characterized by the presence of calcium binding proteins. Calretinin (CR), a representative of such proteins, denotes region-specificity in a temporal manner by variable day-night expression. In parallel, age-related brain dysfunction and neurodegeneration are associated with abnormal intracellular concentrations of calcium. Here, we investigated whether daily changes in the number of CR neurons are a feature of the aged IGL and vLGN in rats. To this end, we perfused rats, ranging from 3 to 24 months of age, within distinct phases of the day, namely zeitgeber times (ZTs). Then, we evaluated CR immunolabeling through design-based stereological cell estimation. We observed distinct daily rhythms of CR expression in the IGL and in both the retinorecipient (vLGNe) and non-retinorecipient (vLGNi) portions of the vLGN. In the ZT 6, the middle of the light phase, the CR cells are reduced with aging in the IGL and vLGNe. In the ZT 12, the transition between light to dark, an age-related CR loss was found in all nuclei. While CR expression predominates in specific spatial domains of vLGN, age-related changes appear not to be restricted at particular portions. No alterations were found in the dark/light transition or in the middle of the dark phase, ZTs 0, and 18, respectively. These results are relevant in the understanding of how aging shifts the phenotype of visual related cells at topographically organized channels of visuomotor and circadian processing.

SELEÇÃO DE REFERÊNCIAS
Detalhe da pesquisa