Confined water in the low hydration regime

Molecular dynamics results on water confined in a silica pore in the low hydration regime are presented. Strong layering effects are found due to the hydrophilic character of the substrate. The local properties of water are studied as function of both temperature and hydration level. The interaction of the thin films of water with the silica atoms induces a strong distortion of the hydrogen bond network. The residence time of the water molecules is dependent on the distance from the surface. Its behavior shows a transition from a brownian to a non-brownian regime approaching the substrate in agreement with results found in studies of water at contact with globular proteins.Comment: 7 pages with 12 figures (RevTeX4). To be published on J. Chem. Phy

PON1 polymorphisms can predict generalized anxiety and depressed mood in patients with multiple chemical sensitivity

Background: Multiple chemical sensitivity (MCS) is a chronic condition with somatic, cognitive and affective symptoms that follow contact with chemical agents at usually non toxic concentrations. We aimed to assess the role of genetic polymorphisms involved in oxidative stress on anxiety and depression in MCS. Materials & methods: Our study investigated the CAT rs1001179, MPO rs2333227, PON1 rs662 and PON1 rs705379 polymorphisms in MCS. Results: The AG genotype of the PON1 rs662 and the TT and CT genotypes of the PON1 rs705379 were involved in anxiety and depression. Discussion: These results are in line with existing evidence of PON1 involvement in MCS and suggest a further role of this gene in the exhibition of anxiety and depression in this disease

TOP CITED PAPER IMPACT FACTOR 2013

TOP CITED PAPER IMPACT FACTOR 2013 awarded to A. Del Casale, G.D. Kotzalidis, C. Rapinesi, D. Serata, E. Ambrosi, A. Simonetti, M. Pompili, S. Ferracuti, R. Tatarelli, P. Girardi, for the paper entitled "Functional Neuroimaging in Obsessive-Compulsive Disorder". This paper was published in: Neuropsychobiology 2011;64:61-85

Neural functional correlates of emotional processing in patients with first-episode psychoses: an activation likelihood estimation (ALE) meta-analysis

BACKGROUND: Early emotional recognition impairment characterises rst-episode psychoses (FEP) and remains stable thereafter. Patients with FEP consistently show brain activation changes during emotional processing in functional neuroimaging studies. AIM AND METHODS: To identify and compare cerebral activation correlates of FEP patients and healthy controls (HCs) during emotional task performances, we performed an Activation Likelihood Estimation (ALE) meta-analysis of peer-reviewed functional magnetic resonance imaging (fMRI) studies. RESULTS: Five studies included 71 patients with FEP and 75 HCs. Within-group analyses showed that HCs activated during emotional task performance the bilateral inferior parietal lobule (BAs 39 and 40), left inferior frontal gyrus (BAs 9 and 47), right amygdala, left middle frontal gyrus (BA 9), right cingulate gyrus (BA 32), and right middle temporal gyrus (BA 21). FEP activations correlating with emotional tasks included the right cuneus (BA 17) and right angular gyrus (BA 39). CONCLUSIONS: During emotional task performance, FEP patients fail to activate an extensive brain network comprising emotional processing-related areas, including both cortical and subcortical areas

Deep transcranial magnetic stimulation in a woman with chronic tinnitus: clinical and FMRI findings. Seeking relief from a symptom and finding vivid memories by serendipity.

Deep transcranial magnetic stimulation in a woman with chronic tinnitus: clinical and FMRI findings. Seeking relief from a symptom and finding vivid memories by serendipity

Depressive symptoms, temperament/character, and attention deficit/hyperactivity disorder traits in medical students seeking counseling

Background: To investigate depressive symptoms, temperament, and attention deficit/hyperactivity disorder traits in medical students, comparing those who sought psychological counseling with those who did not seek it. Subjects and Methods: We assessed 49 students seeking counseling (mean age=24.4 years, SD=4.07) and 49 noncounseling controls (mean age=21.7 years, SD=2.6). Participants were assessed for depressive symptoms with the Beck Depression Inventory-II, for temperament/character dimensions using the Temperament and Character Inventory-Revised, and for attention deficit/hyperactivity symptoms using the Adult ADHD Self-Report Scale. Results: Counseling-seeking students were more likely to have attention deficit/hyperactivity symptoms, scored higher on the Beck Depression Inventory-II and on the Temperament and Character Inventory-Revised Harm avoidance, and lower on the Temperament and Character Inventory-Revised Self-Directedness, compared to controls. Conclusions: Medical students applying for counseling should be carefully assessed for depressive symptoms, attention deficit/hyperactivity symptoms, and temperament characteristics; depressive and attention deficit/hyperactivity symptoms could be the focus of counseling interventions

Psychopharmacological treatment of obsessive-compulsive disorder (OCD)

Background: Obsessive-compulsive disorder (OCD) is associated with affective and cognitive symptoms causing personal distress and reduced global functioning. These have considerable societal costs due to healthcare service utilization. Objective: Our aim was to assess the efficacy of pharmacological interventions in OCD and clinical guidelines, providing a comprehensive overview of this field. Methods: We searched the PubMed database for papers dealing with drug treatment of OCD, with a specific focus on clinical guidelines, treatments with antidepressants, antipsychotics, mood stabilizers, off-label medications, and pharmacogenomics. Results: Prolonged administration of selective serotonin reuptake inhibitors (SSRIs) is most effective. Better results can be obtained with a SSRI combined with cognitive behavioral therapy (CBT) or the similarly oriented exposure and response prevention (ERP). Refractory OCD could be treated with different strategies, including a switch to another SSRI or clomipramine, or augmentation with an atypical antipsychotic. The addition of medications other than antipsychotics or intravenous antidepressant administration needs further investigation, as the evidence is inconsistent. Pharmacogenomics and personalization of therapy could reduce treatment resistance. Conclusions: SSRI/clomipramine in combination with CBT/ERP is associated with the optimal response compared to each treatment alone or to other treatments. New strategies for refractory OCD are needed. The role of pharmacogenomics could become preponderant in the coming years