581 research outputs found

    Immunopathology of Leishmaniasis: an update.

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    Leishmaniasis represents a severe, increasing, public health problem. The perspective of its control is highly dependent on research progress, on therapeutic manipulations of the immune system, and on vaccine development. There is a correlation between the clinical outcome of Leishmania infection and the cytokine response profile. While a protective immune response against Leishmania has been clearly identified to be related to the influence of a type-1 response and IFN-gamma production, the precise role of T helper (TH) 2 cytokines in non-healing infections requires further exploration. IL-4 and IL-13 (TH2 cytokines) can promote disease progression in cutaneous leishmaniasis, whereas IL-4 would appear to enhance protective type-1 responses in visceral leishmaniasis. Thus, the TH1/TH2 paradigm of resistance/susceptibility to intracellular parasites is probably an oversimplification of a more complicated network of regulatory/counter regulatory interactions. Moreover, the presence of antigen specific regulatory T cell subsets may provide an environment that contributes to the balance between TH1 and TH2 cells. Finally, the involvement of CD8 positive T cells has been described, but the modality of their function in this kind of infection has not been so far elucidated

    The moderating role of stigma in the relationship between depression and resilience: results of a cross-sectional study in university students

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    Background/objective: Depression is a growing concern in university students and resilience has shown to play a protective role. The impact of stigma is still under-explored, with reference to its moderating role between depression and resilience. The present study investigate such a relationship among Italian university students. Methods: A cross-sectional design was applied in a simple of 1,912 students to examine the interrelationships between depression (Patient Health Questionnaire-9), resilience (Nicholson McBride Resilience questionnaire), and stigma (Stigma-9). Correlation, predictor, and moderation analyses were applied in RStudio. Results: A negative correlation was found between depressive symptoms and resilience (r = −0.455, p < 0.001). A positive correlation was found between depressive symptoms and stigma (r = 0.207, p < 0.001). Lower levels of resilience and higher levels of stigma were significant predictors of depressive symptoms [F(df, n) = 190.8(3, 1884), p < 0.001, R2 = 0.236]. The moderation analysis showed a weakening of resilience protective effect against depression as stigma levels increase [F(df,n) = 186.7(3,1908), p < 0.001, R2 = 0.226]. Conclusion: Stigma influences the relationship between depression and resilience. Anti-stigma interventions and programs empowering resilience, should be implemented in university settings to protect students from depression

    Validating the Diathesis–Stress Model Based Case Conceptualization Procedure in Cognitive Behavioral Therapies: The LIBET (Life Themes and Semi-Adaptive Plans—Implications of Biased Beliefs, Elicitation and Treatment) Procedure

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    Cognitive behavioral therapy (CBT) approaches use case formulation procedures based on the diathesis–stress conceptualization model, arranged in two dimensions: emotional vulnerability (present in a patient’s consciousness in terms of core beliefs) and coping strategies. Nevertheless, despite its pivotal role, there are a limited number of validation studies for this model. Life themes and semi-adaptive plans: Implications of biased beliefs, elicitation and treatment (LIBET) is a CBT case formulation method grounded on the CBT diathesis–stress model that aims to help validate the CBT case formulation model, and, in particular, its bidimensional arrangement. In LIBET, the two classic CBT dimensions are called “life themes,” which are mental states of focused attention to emotional sensitivities represented as core beliefs in consciousness, and “semi-adaptive plans,” which are the rigid management strategies of “life themes” implemented by adopting coping strategies such as anxious safety behaviors, compulsive controls and aggressive or rewarding strategies. The study uses quantitative textual analysis to validate the LIBET procedure in a clinical sample. The investigation discusses the extent to which the results can be considered a validation of the arrangement of the general CBT diathesis–stress model in the two dimensions of core beliefs and coping strategies

    Strategies and Controversies in the Treatment With Carbon Dioxide Laser of Laryngeal Hemangioma: A Case Series and Review of the Literature

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    Introduction: The hemangioma is the most common vascular tumor, involving the head and neck in 60% of cases. It is rare in the larynx. In children, hemangiomas are more frequent on the subglottis, whereas in adults the most common site is the supraglottis. Laryngeal hemangioma with cavernous features isolated to the free edge of the vocal fold is a very rare clinical finding. We present 2 cases of glottic hemangioma. Both patients reported severe hoarseness. Cases: In the first patient, an extensive blue-purple mass was seen on the right vocal cord. The patient was posted for microlaryngeal surgery with carbon dioxide (CO2) laser. Second patient had a large, smooth, flesh-colored polypoid mass emanating from the left vocal cord. The patient was posted for microlaryngeal surgery. After 2 months, both patients showed a considerable voice improvement. Discussion: Vocal cord hemangiomas are very rare, and they usually cause problem in the voice of the patient. A vascular lesion that may mimic a hemangioma may sometimes result from an organizing hematoma following a hemorrhage on the vocal cords due to voice abuse. Laryngeal hemangiomas also need to be distinguished pathologically from polypoidal vascular granulation tissue that may be produced by laryngeal biopsy, intubation, or trauma. Indirect endoscopy is enough to diagnosis. No active treatment is advised for adult laryngeal hemangiomas unless the lesions are symptomatic or show a tendency to involve other parts. There is no uniformly accepted treatment of head and neck hemangiomas. Surgical excision with laser CO2 microlaryngoscopic techniques gives satisfactory results

    Fear of missing out (FoMO) and internet use: A comprehensive systematic review and meta-analysis.

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    FoMO has been considered a predisposing factor toward excessive internet use, and a great deal of literature has investigated the link between FoMO and internet use. However, there is still a lack of cohesion in the literature. The current study have been conducted and reported in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). In the current systematic review and meta-analysis of 86 effect-sizes, representative of 55,134 participants (Mean age = 22.07, SD = 6.15, females = 58.37%), we found that the strength of the trait FoMO- internet use association significantly varies from r = 0.11 to r = 0.63. In some populations, FoMO appears to increase with age and it is reverse in other populations. Facebook use was unrelated to FoMO in some populations, and higher FoMO was linked with stopping Instagram use for some individuals. The FoMO- internet use association was independent of their severity, as the interaction was not significant, and this association was neither linear nor curvilinear. The FoMO-internet use association does not appear to be associated with depressive, anxiety, and stress symptoms or level of life satisfaction. The COVID-19 pandemic was the only significant moderator of the FoMO-internet use association, strengthening this relationship. FoMO demonstrates a considerable role in internet use; however, there is no evidence of interaction or bi-directional association between the mentioned. Overall, we still don't know what factors contribute to individuals exhibiting distinct patterns in the FoMO-internet use association

    A systematic review of the relationship between generic and specific metacognitive beliefs and emotion dysregulation: A metacognitive model of emotion dysregulation

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    Although a probable association between metacognitive beliefs (also termed ‘metacognitions’) and emotion dysregulation has been suggested in the literature, the evidence is still sparse and inconclusive. The current study aims to present a comprehensive evaluation of the literature examining the association between metacognitive beliefs and emotion dysregulation. In accordance with Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) criteria, a search was conducted on PubMed and Ebsco. A manual search of reference lists was also run. Search terms were ‘metacognitions/metacognitive beliefs/positive metacognitive beliefs/negative metacognitive beliefs/cognitive self‐consciousness/beliefs about the need to control thoughts/cognitive confidence/negative beliefs about thoughts concerning uncontrollability and danger/AND difficulties emotion regulation/emotion dysregulation’. A total of 19 studies met the inclusion criteria. In both non‐clinical and clinical populations, a higher endorsement of dysfunctional metacognitive beliefs was found to be associated with emotion dysregulation and vice versa. A higher endorsement of metacognitive beliefs may be associated, either directly or via maladaptive forms of mental control (e.g., worry, rumination and suppression) to emotion dysregulation. Metacognitive beliefs could be the potential therapeutic target in clinical interventions aimed at reducing emotion regulation difficulties

    The Metacognitions about Binge Eating Questionnaire (MBEQ): investigation of the association between specific metacognitions and Binge Eating Disorder

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    Literature suggested that metacognitions are involved in eating problems and may be relevant to the understanding of Binge Eating Disorder (BED). The goal of the current studies was to develop the first self-report instrument on metacognitions about binge eating. In Study 1, a community sample completed the Metacognitions about Binge Eating Questionnaire (MBEQ); an Exploratory Factor Analysis (EFA) was performed. In study 2, a community sample completed the MBEQ and measures assessing severity of binge eating, irrational food beliefs, anxiety, depression, impulsiveness. A Confirmatory Factor Analysis (CFA) was performed. Concurrent and incremental validity were assessed. In study 3, a clinical sample of participants with a diagnosis of BED completed the MBEQ and other measures. Bivariate correlational analysis and hierarchical linear regression were performed. Participants from the general population and participants with a diagnosis of BED were compared. EFA and CFA supported a two-factor solution consisting of positive and negative metacognitions about binge eating. Concurrent and incremental validity were acceptable. The metacognitions factors correlated positively with anxiety, depression, irrational food beliefs, impulsiveness in the community sample, and anxiety, irrational food beliefs, impulsiveness in clinical sample. The metacognitions factors contributed to the prediction of binge eating disorders symptoms, in community and clinical samples, over and above age, gender, impulsiveness, anxiety, depression, irrational food beliefs. The MBEQ possesses good psychometric properties and appears a reliable and valid measure of positive and negative metacognitions about binge eating. Metacognitions about binge eating could be a therapeutic target to reduce the severity of binge eating episodes

    Perfectionism in patients with eating disorders: The role of metacognitive beliefs and repetitive negative thinking

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    AbstractIntroductionUsing the Self‐Regulatory Executive Function model as a basis, this study explored whether, in patients with eating disorders (EDs), metacognitions and repetitive negative thinking are associated with higher levels of perfectionisms.MethodsOne hundred twenty‐three outpatients with EDs were recruited. Perfectionism, metacognitive beliefs, worry, rumination, anger rumination, affective and eating symptoms were assessed. Correlation and hierarchal regression analyses were run.ResultsHigher endorsement of positive beliefs about worry was associated with higher levels of ‘personal standards perfectionism’. Higher endorsement of positive beliefs about worry, need to control thoughts, worry and rumination was associated with higher levels of ‘concern over mistakes perfectionism’.ConclusionsAmong patients with EDs, perfectionism appears to be associated with the endorsement of dysfunctional metacognitive beliefs, worry and rumination. Dysfunctional metacognitive beliefs and repetitive negative thinking could be suitable therapeutic targets to reduce the levels of perfectionism among patients with EDs
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