41 research outputs found
Maintenance deep transcranial magnetic stimulation sessions are associated with reduced depressive relapses in patients with unipolar or bipolar depression
Introduction: Deep transcranial magnetic stimulation (dTMS) is a new form of TMS allowing safe stimulation of deep brain regions. The objective of this preliminary study was to assess the role of dTMS maintenance sessions in protecting patients with bipolar disorder (BD) or recurrent major depressive disorder (MDD) from developing depressive or manic relapses in a 12-month follow-up period. Methods: Twenty-four drug-resistant patients with a current depressive episode and a diagnosis of MDD or BD have been enrolled in the study. All the participants underwent daily dTMS sessions for 4 weeks. One group (maintenance - M group) received additional maintenance dTMS sessions weekly or twice a week. Results: After the first dTMS cycle, a significant reduction of Hamilton Depression Rating Scale (HDRS) scores was observed in all participants. Subsequently, the HDRS mean scores did not significantly change over time in the M group, while it significantly increased in the non-M-group after 6 and 12 months. Discussion: This study confirms previous evidence of a positive therapeutic effect of dTMS on depressive symptoms and suggests that, after recovery from acute episodes, maintenance dTMS sessions may be helpful in maintaining euthymia in a 12-month follow-up period
STRUCTURAL NEUROIMAGING IN PATIENTS WITH PANIC DISORDER: FINDINGS AND LIMITATIONS OF RECENT STUDIES
Background: Panic disorder, a relatively common anxiety disorder, is often associated to agoraphobia and may be disabling. Its
neurobiological underpinnings are unknown, despite the proliferation of models and hypotheses concerning it; investigating its
correlates could provide the means for better understanding its pathophysiology. Recent structural neuroimaging techniques may
contribute to the identification of possible brain morphological alterations that could be possibly related to the clinical expression of
panic disorder.
Methods: Through careful major database searches, using terms keen to panic, agoraphobia, structural magnetic neuroimaging
and the like, we identified papers published in peer-review journals and reporting data on the brain structure of patients with panic
disorder. Included papers were used comparatively to speculate about the nature of reported brain structural alterations.
Results: Anxiety, which is the core feature of the disorder, correlates with the function of the amygdala, which showed a smaller
volume in patients, as compared to healthy subjects. Data also showed a volumetric decrease of the anterior cingulate along with
increased fractional anisotropy, and increase of some brainstem nuclei, particularly of the rostral pons. Other structures with
reported volumetric correlates of panic disorder are the hippocampus and the parahippocampal cortices, the insula, the putamen,
and the pituitary gland. Volumetric changes in the anterior cingulate, frontal, orbitofrontal, insular, and temporal cortices have also
been described in structural neuroimaging studies. Major methodological limitations are considered in context.
Conclusions: Several data point to the existence of structural neuroanatomical alterations in panic disorder, consisting in
significant volumetric reductions or increases in different brain areas. White matter alterations were shown also in the only diffusion
tensor imaging study performed to date. Available data do not allow us to conclude about the possible progression of these
alterations
[Phenelzine: legacy or current psychiatric practice?]
Monoamine oxidase inhibitors (MAO-I) are the first drugs of antidepressant classes discovered. Phenelzine is a worldwide prescribed MAO-I, studied in a variety of mood and anxiety disorders. Purpose of the present paper is to critically review the results reported in the scientific international literature focusing on efficacy and safety of phenelzine in clinical psychiatric practice, in order to achieve a better understanding of the relationship between pharmacological data, therapeutic approach and side or adverse effects. We performed a careful PubMed (1980-2012) search on clinical pharmacology and clinical use of phenelzine in various psychiatric disorders. We reported our findings discussing separately clinical pharmacology data and systematic controlled, randomised and not randomised, clinical studies
Behavioral genetics and criminal responsibility at the courtroom
Several questions arise from the recent use of behavioral genetic research data in the courtroom. Ethical issues concerning the influence of biological factors on human free will, must be considered when specific gene patterns are advocated to constrain court's judgment, especially regarding violent crimes. Aggression genetics studies are both difficult to interpret and inconsistent, hence, in the absence of a psychiatric diagnosis, genetic data are currently difficult to prioritize in the courtroom. The judge's probabilistic considerations in formulating a sentence must take into account causality, and the latter cannot be currently ensured by genetic data. (c) 2014 Elsevier Ireland Ltd. All rights reserved
The clinical and radiological examination of acute intimate partner violence injuries. A retrospective analysis of an italian cohort of women
Intimate partner violence (IPV) is the most frequent type of violence against women. We compared clinical and radiological IPV characteristics to stranger assault (SA).Background: Intimate partner violence (IPV) is the most frequent type of violence against women. We compared clinical and radiological IPV characteristics to stranger assault (SA). Methods: We retrospectively identified 123 women with IPV from court reports and matched them to 124 SA. Clinical and radiological characteristics were evaluated by testing their sensitivity, specificity, positive and negative predictive value for IPV, and the strength of their association with IPV. Results: IPV women referred with more delay to the emergency department (ED), had more ED accesses, and showed more mismatch between reports to the triage and disclosures to the ED physician. They also displayed more head, neck, and face injuries, and new-plus-old fractures. Conclusion: The identification of specific features may help ED physicians to suspect IPV
NEUROCOGNITION UNDER HYPNOSIS: Findings From Recent Functional Neuroimaging Studies
Functional neuroimaging studies show that hypnosis affects attention by modulating anterior cingulate cortex activation and uncoupling conflict monitoring and cognitive control function. Considering functional changes in the activation of the occipital and temporal cortices, precuneus, and other extrastriate visual areas, which account for hypnosis-induced altered reality perception, the role of mental imagery areas appears to be central under hypnosis. This is further stressed by the fact that motor commands are processed differently in the normal conscious state, deviating toward the precuneus and extrastriate visual areas. Functional neuroimaging also shows that posthypnotic suggestions alter cognitive processes. Further research should investigate the effects of hypnosis on other executive functions and personality measures
Personality changes after Toscana virus (TOSV) encephalitis in a 49-year-old man: a case report
Toscana virus (TOSV) infection may often cause symptomatic meningitides and encephalitides. These usually subside in few days and their sequelae do not last for more than few weeks. We here report the case of a 49-year-old man who developed encephalitis after being bitten by phlebotomi in a region near southern Tuscany, where TOSV is endemic, and who developed postencephalitic seizures and subsequently, persistent personality alterations, characterized by sexually dissolute behavior and aggressiveness. One year after infection, the patient needs a combination of an SSRI antidepressant and a mood stabilizer/anticonvulsant to obtain less than optimal symptom improvement. This points to the need of establishing better preventive measures in Tuscany and nearby regions
Functional Neuroimaging in Obsessive-Compulsive Disorder
Background and Aim: Obsessive-compulsive disorder (OCD) is a severe, highly prevalent and chronically disabling psychiatric disorder that usually emerges during childhood or adolescence. This paper aims to review the literature on functional neuroimaging in OCD, analysing the reported dysfunctional connectivity in the corticostriatothalamocortical circuitry. Method: This study included papers published in peer-reviewed journals dealing with functional imaging in OCD. Results: Striatal dysfunction, mainly of the caudate nucleus, leads to inefficient thalamic gating, resulting in hyperactivity within the orbitofrontal cortex (intrusive thoughts) and the anterior cingulate cortex (non-specific anxiety). Compulsions consist of ritualistic behaviours performed to recruit the inefficient striatum and neutralise unwanted thoughts and anxiety. Functional neuroimaging findings are discussed against the background of specific cognitive impairments, mainly regarding visuospatial processing, executive functioning and motor speed. Cognitive deficits are partial and specific, matching imaging data. Conclusions: Several studies have targeted brain regions hypothesised to be involved in the pathogenesis of OCD, showing the existence of dysfunctional connectivity in the corticostriatothalamocortical circuitry. Improvements in spatial resolution of neuroimaging techniques may contribute to a better understanding of the neurocircuitry of OCD and other anxiety disorders. Copyright (C) 2011 S. Karger AG, Base