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Imaging in Psychiatry

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https://www.readbyqxmd.com/read/28646744/systematic-biobanking-novel-imaging-techniques-and-advanced-molecular-analysis-for-precise-tumor-diagnosis-and-therapy-the-polish-mobit-project
#1
Jacek Niklinski, Adam Kretowski, Marcin Moniuszko, Joanna Reszec, Anna Michalska-Falkowska, Magdalena Niemira, Michal Ciborowski, Radoslaw Charkiewicz, Dorota Jurgilewicz, Miroslaw Kozlowski, Rodryg Ramlau, Cezary Piwkowski, Miroslaw Kwasniewski, Monika Kaczmarek, Andrzej Ciereszko, Tomasz Wasniewski, Robert Mroz, Wojciech Naumnik, Ewa Sierko, Magdalena Paczkowska, Joanna Kisluk, Anetta Sulewska, Adam Cybulski, Zenon Mariak, Boguslaw Kedra, Jacek Szamatowicz, Paweł Kurzawa, Lukasz Minarowski, Angelika Edyta Charkiewicz, Barbara Mroczko, Jolanta Malyszko, Christian Manegold, Lothar Pilz, Heike Allgayer, Mohammed L Abba, Hartmut Juhl, Frauke Koch
Personalized and precision medicine is gaining recognition due to the limitations by standard diagnosis and treatment; many areas of medicine, from cancer to psychiatry, are moving towards tailored and individualized treatment for patients based on their clinical characteristics and genetic signatures as well as novel imaging techniques. Advances in whole genome sequencing have led to identification of genes involved in a variety of diseases. Moreover, biomarkers indicating severity of disease or susceptibility to treatment are increasingly being characterized...
June 21, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28641914/interactive-home-telehealth-and-burns-a-pilot-study
#2
Sean Hickey, Jason Gomez, Benjamin Meller, Jeffery C Schneider, Meredith Cheney, Shamim Nejad, John Schulz, Jeremy Goverman
OBJECTIVE: The objective of this study is to review our experience incorporating Interactive Home Telehealth (IHT) visits into follow-up burn care. METHODS: A retrospective review of all burn patients participating in IHT encounters over the course of 15 months was performed. Connections were established through secure video conferencing and call-routing software. Patients connected with a personal computer or tablet and providers connected with a desktop computer with a high-definition web camera...
June 19, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28640169/the-use-of-lorazepam-and-electroconvulsive-therapy-in-the-treatment-of-catatonia-treatment-characteristics-and-outcomes-in-60-patients
#3
Ahmet Unal, Abdurrahman Altindag, Bahadir Demir, Ihsan Aksoy
OBJECTIVES: Lorazepam and electroconvulsive therapy (ECT) are effective treatments for catatonia. However, systematic data on these treatments in catatonia are limited. In the present study, we aimed to investigate the clinical and treatment-related characteristics of patients with catatonia who underwent lorazepam and/or ECT. METHODS: Between January 2012 and December 2016, we received 60 patients with catatonia hospitalized in the Gaziantep University Faculty of Medicine Clinic of Psychiatry...
June 20, 2017: Journal of ECT
https://www.readbyqxmd.com/read/28607459/the-arf6-activator-efa6-psd3-confers-regional-specificity-and-modulates-ethanol-consumption-in-drosophila-and-humans
#4
D A Gonzalez, T Jia, J H Pinzón, S F Acevedo, S A Ojelade, B Xu, N Tay, S Desrivières, J L Hernandez, T Banaschewski, C Büchel, A L W Bokde, P J Conrod, H Flor, V Frouin, J Gallinat, H Garavan, P A Gowland, A Heinz, B Ittermann, M Lathrop, J-L Martinot, T Paus, M N Smolka, A R Rodan, G Schumann, A Rothenfluh
Ubiquitously expressed genes have been implicated in a variety of specific behaviors, including responses to ethanol. However, the mechanisms that confer this behavioral specificity have remained elusive. Previously, we showed that the ubiquitously expressed small GTPase Arf6 is required for normal ethanol-induced sedation in adult Drosophila. Here, we show that this behavioral response also requires Efa6, one of (at least) three Drosophila Arf6 guanine exchange factors. Ethanol-naive Arf6 and Efa6 mutants were sensitive to ethanol-induced sedation and lacked rapid tolerance upon re-exposure to ethanol, when compared with wild-type flies...
June 13, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28599724/-web-tv-a-tool-favouring-collaboration-for-quality-care
#5
REVIEW
Jean-Pierre Decobert, Stéphanie Weill
The Web TV of the EPSM Lille-Métropole is an innovative communication tool in mental health. Aiming to change the image of psychiatry among users as well as professionals, these programmes, posted online, enable viewers to see the care provided by mental health professionals. They are also an opportunity for those involved to get to know each other better to improve the way they work together.
June 2017: Revue de L'infirmière
https://www.readbyqxmd.com/read/28575528/increased-striatal-and-reduced-prefrontal-cerebral-blood-flow-in-clinical-high-risk-for-psychosis
#6
Jochen Kindler, Frauke Schultze-Lutter, Martinus Hauf, Thomas Dierks, Andrea Federspiel, Sebastian Walther, Benno G Schimmelmann, Daniela Hubl
Increased striatal dopaminergic activity and decreased prefrontal functioning have been reported in individuals at clinical high risk (CHR) for psychosis. Abnormal metabolic rate might affect resting-state cerebral blood flow (rCBF) in the respective regions. Here, we examined if striatal and prefrontal rCBF differ between patients with CHR, first-episode psychosis (FEP), chronic schizophrenia-spectrum disorder (SZ) and controls. Two cohorts with a total of 122 participants were included and analyzed separately: 32 patients with SZ and 31 healthy controls (HC) from the University Hospital of Psychiatry, and 59 patients from the Bern Early Recognition and Intervention Center (29 with CHR, 12 with FEP, and 18 clinical controls [CC])...
May 30, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28533517/vortioxetine-reduces-bold-signal-during-performance-of-the-n-back-working-memory-task-a-randomised-neuroimaging-trial-in-remitted-depressed-patients-and-healthy-controls
#7
J Smith, M Browning, S Conen, R Smallman, J Buchbjerg, K G Larsen, C K Olsen, S R Christensen, G R Dawson, J F Deakin, P Hawkins, R Morris, G Goodwin, C J Harmer
Cognitive dysfunction is common in depression during both acute episodes and remission. Vortioxetine is a novel multimodal antidepressant that has improved cognitive function including executive function in depressed patients in randomised placebo-controlled clinical trials. However, it is unclear whether vortioxetine is able to target directly the neural circuitry implicated in the cognitive deficits in depression. Remitted depressed (n=48) and healthy volunteers (n=48) were randomised to receive 14 days treatment with 20 mg vortioxetine or placebo in a double-blind design...
May 23, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28533516/asd-restricted-and-repetitive-behaviors-associated-at-17q21-33-genes-prioritized-by-expression-in-fetal-brains
#8
R M Cantor, L Navarro, H Won, R L Walker, J K Lowe, D H Geschwind
Autism spectrum disorder (ASD) is a behaviorally defined condition that manifests in infancy or early childhood as deficits in communication skills and social interactions. Often, restricted and repetitive behaviors (RRBs) accompany this disorder. ASD is polygenic and genetically complex, so we hypothesized that focusing analyses on intermediate core component phenotypes, such as RRBs, can reduce genetic heterogeneity and improve statistical power. Applying this approach, we mined Caucasian genome-wide association studies (GWAS) data from two of the largest ASD family cohorts, the Autism Genetics Resource Exchange and Autism Genome Project (AGP)...
May 23, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28507321/pet-imaging-of-dopamine-d2-receptor-internalization-in-schizophrenia
#9
J J Weinstein, E van de Giessen, R J Rosengard, X Xu, N Ojeil, G Brucato, R B Gil, L S Kegeles, M Laruelle, M Slifstein, A Abi-Dargham
Recent genetic, molecular and post-mortem studies suggest impaired dopamine (DA)-D2 receptor (D2R) trafficking in patients with schizophrenia (SZ). Imaging and preclinical studies have shown agonist-induced D2R internalization can be imaged with positron emission tomography (PET) using D2R radiotracers combined with psychostimulant challenge. This is feasible if radiotracer binding is measured when postchallenge DA levels have returned to baseline, following the initial competition phase between DA and radiotracer for binding to D2R...
May 16, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28507319/longitudinal-changes-of-tau-pet-imaging-in-relation-to-hypometabolism-in-prodromal-and-alzheimer-s-disease-dementia
#10
K Chiotis, L Saint-Aubert, E Rodriguez-Vieitez, A Leuzy, O Almkvist, I Savitcheva, M Jonasson, M Lubberink, A Wall, G Antoni, A Nordberg
The development of tau-specific positron emission tomography (PET) tracers allows imaging in vivo the regional load of tau pathology in Alzheimer's disease (AD) and other tauopathies. Eighteen patients with baseline investigations enroled in a 17-month follow-up study, including 16 with AD (10 had mild cognitive impairment and a positive amyloid PET scan, that is, prodromal AD, and six had AD dementia) and two with corticobasal syndrome. All patients underwent PET scans with [(18)F]THK5317 (tau deposition) and [(18)F]FDG (glucose metabolism) at baseline and follow-up, neuropsychological assessment at baseline and follow-up and a scan with [(11)C]PIB (amyloid-β deposition) at baseline only...
May 16, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28507318/cerebellar-volume-and-cerebellocerebral-structural-covariance-in-schizophrenia-a-multisite-mega-analysis-of-983-patients-and-1349-healthy-controls
#11
T Moberget, N T Doan, D Alnæs, T Kaufmann, A Córdova-Palomera, T V Lagerberg, J Diedrichsen, E Schwarz, M Zink, S Eisenacher, P Kirsch, E G Jönsson, H Fatouros-Bergman, L Flyckt, G Pergola, T Quarto, A Bertolino, D Barch, A Meyer-Lindenberg, I Agartz, O A Andreassen, L T Westlye
Although cerebellar involvement across a wide range of cognitive and neuropsychiatric phenotypes is increasingly being recognized, previous large-scale studies in schizophrenia (SZ) have primarily focused on supratentorial structures. Hence, the across-sample reproducibility, regional distribution, associations with cerebrocortical morphology and effect sizes of cerebellar relative to cerebral morphological differences in SZ are unknown. We addressed these questions in 983 patients with SZ spectrum disorders and 1349 healthy controls (HCs) from 14 international samples, using state-of-the-art image analysis pipelines optimized for both the cerebellum and the cerebrum...
May 16, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28483719/multi-echo-epi-of-human-fear-conditioning-reveals-improved-bold-detection-in-ventromedial-prefrontal-cortex
#12
Brice Fernandez, Laura Leuchs, Philipp G Sämann, Michael Czisch, Victor I Spoormaker
Standard T2(*) weighted functional magnetic resonance imaging (fMRI) performed with echo-planar imaging (EPI) suffers from signal loss in the ventromedial prefrontal cortex (vmPFC) due to macroscopic field inhomogeneity. However, this region is of special interest to affective neuroscience and psychiatry. The Multi-echo EPI (MEPI) approach has several advantages over EPI but its performance against EPI in the vmPFC has not yet been examined in a study with sufficient statistical power using a task specifically eliciting activity in this region...
May 5, 2017: NeuroImage
https://www.readbyqxmd.com/read/28483271/-mindful-neuropsychology-mindfulness-based-cognitive-remediation
#13
E Bulzacka, S Lavault, A Pelissolo, C Bagnis Isnard
OBJECTIVES: Mindfulness based interventions (MBI) have recently gained much interest in western medicine. MBSR paradigm is based on teaching participants to pay complete attention to the present experience and act nonjudgmentally towards stressful events. During this mental practice the meditator focuses his or her attention on the sensations of the body. While the distractions (mental images, thoughts, emotional or somatic states) arise the participant is taught to acknowledge discursive thoughts and cultivate the state of awareness without immediate reaction...
May 5, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28471555/-conversion-disorder-functional-neuroimaging-and-neurobiological-mechanisms
#14
J Lejeune, C Piette, E Salmon, G Scantamburlo
Conversion disorder is a psychiatric disorder often encountered in neurology services. This condition without organic lesions was and still is sometimes referred as an imaginary illness or feigning. However, the absence of organic lesions does not exclude the possibility of cerebral dysfunction. The etiologic mechanisms underlying this disorder remain uncertain even today.The advent of cognitive and functional imaging opens up a field of exploration for psychiatry in understanding the neurobiological mechanisms underlying mental disorders and especially the conversion disorder...
April 2017: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28461700/connectome-imaging-for-mapping-human-brain-pathways
#15
Y Shi, A W Toga
With the fast advance of connectome imaging techniques, we have the opportunity of mapping the human brain pathways in vivo at unprecedented resolution. In this article we review the current developments of diffusion magnetic resonance imaging (MRI) for the reconstruction of anatomical pathways in connectome studies. We first introduce the background of diffusion MRI with an emphasis on the technical advances and challenges in state-of-the-art multi-shell acquisition schemes used in the Human Connectome Project...
May 2, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28461699/cortical-abnormalities-in-bipolar-disorder-an-mri-analysis-of-6503-individuals-from-the-enigma-bipolar-disorder-working-group
#16
D P Hibar, L T Westlye, N T Doan, N Jahanshad, J W Cheung, C R K Ching, A Versace, A C Bilderbeck, A Uhlmann, B Mwangi, B Krämer, B Overs, C B Hartberg, C Abé, D Dima, D Grotegerd, E Sprooten, E Bøen, E Jimenez, F M Howells, G Delvecchio, H Temmingh, J Starke, J R C Almeida, J M Goikolea, J Houenou, L M Beard, L Rauer, L Abramovic, M Bonnin, M F Ponteduro, M Keil, M M Rive, N Yao, N Yalin, P Najt, P G Rosa, R Redlich, S Trost, S Hagenaars, S C Fears, S Alonso-Lana, T G M van Erp, T Nickson, T M Chaim-Avancini, T B Meier, T Elvsåshagen, U K Haukvik, W H Lee, A H Schene, A J Lloyd, A H Young, A Nugent, A M Dale, A Pfennig, A M McIntosh, B Lafer, B T Baune, C J Ekman, C A Zarate, C E Bearden, C Henry, C Simhandl, C McDonald, C Bourne, D J Stein, D H Wolf, D M Cannon, D C Glahn, D J Veltman, E Pomarol-Clotet, E Vieta, E J Canales-Rodriguez, F G Nery, F L S Duran, G F Busatto, G Roberts, G D Pearlson, G M Goodwin, H Kugel, H C Whalley, H G Ruhe, J C Soares, J M Fullerton, J K Rybakowski, J Savitz, K T Chaim, M Fatjó-Vilas, M G Soeiro-de-Souza, M P Boks, M V Zanetti, M C G Otaduy, M S Schaufelberger, M Alda, M Ingvar, M L Phillips, M J Kempton, M Bauer, M Landén, N S Lawrence, N E M van Haren, N R Horn, N B Freimer, O Gruber, P R Schofield, P B Mitchell, R S Kahn, R Lenroot, R Machado-Vieira, R A Ophoff, S Sarró, S Frangou, T D Satterthwaite, T Hajek, U Dannlowski, U F Malt, V Arolt, W F Gattaz, W C Drevets, X Caseras, I Agartz, P M Thompson, O A Andreassen
Despite decades of research, the pathophysiology of bipolar disorder (BD) is still not well understood. Structural brain differences have been associated with BD, but results from neuroimaging studies have been inconsistent. To address this, we performed the largest study to date of cortical gray matter thickness and surface area measures from brain magnetic resonance imaging scans of 6503 individuals including 1837 unrelated adults with BD and 2582 unrelated healthy controls for group differences while also examining the effects of commonly prescribed medications, age of illness onset, history of psychosis, mood state, age and sex differences on cortical regions...
May 2, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28443617/the-therapeutic-potential-of-psychedelic-drugs-past-present-and-future
#17
Robin L Carhart-Harris, Guy M Goodwin
Plant-based psychedelics such as psilocybin have an ancient history of medicinal use. After the first English-language report on LSD in 1950, psychedelics enjoyed a short-lived relationship with psychology and psychiatry. Used most notably as aides to psychotherapy for the treatment of mood disorders and alcohol dependence, drugs such as LSD showed initial therapeutic promise before prohibitive legislature in the mid-1960s effectively ended all major psychedelic research programmes. Since the early 1990s, there has been a steady revival of human psychedelic research: last year saw reports on the first modern brain imaging study with LSD and 3 separate clinical trials of psilocybin for depressive symptoms...
April 26, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28441884/targeting-neuronal-dysfunction-in-schizophrenia-with-nicotine-evidence-from-neurophysiology-to-neuroimaging
#18
Jason Smucny, Jason R Tregellas
Patients with schizophrenia self-administer nicotine at rates higher than is self-administered for any other psychiatric illness. Although the reasons are unclear, one hypothesis suggests that nicotine is a form of 'self-medication' in order to restore normal levels of nicotinic signaling and target abnormalities in neuronal function associated with cognitive processes. This brief review discusses evidence from neurophysiological and neuroimaging studies in schizophrenia patients that nicotinic agonists may effectively target dysfunctional neuronal circuits in the illness...
April 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28428048/multi-center-machine-learning-in-imaging-psychiatry-a-meta-model-approach
#19
Petr Dluhoš, Daniel Schwarz, Wiepke Cahn, Neeltje van Haren, René Kahn, Filip Španiel, Jiří Horáček, Tomáš Kašpárek, Hugo Schnack
One of the biggest problems in automated diagnosis of psychiatric disorders from medical images is the lack of sufficiently large samples for training. Sample size is especially important in the case of highly heterogeneous disorders such as schizophrenia, where machine learning models built on relatively low numbers of subjects may suffer from poor generalizability. Via multicenter studies and consortium initiatives researchers have tried to solve this problem by combining data sets from multiple sites. The necessary sharing of (raw) data is, however, often hindered by legal and ethical issues...
April 17, 2017: NeuroImage
https://www.readbyqxmd.com/read/28426908/clinically-useful-brain-imaging-for-neuropsychiatry-how-can-we-get-there
#20
REVIEW
Michael P Milham, R Cameron Craddock, Arno Klein
Despite decades of research, visions of transforming neuropsychiatry through the development of brain imaging-based "growth charts" or "lab tests" have remained out of reach. In recent years, there is renewed enthusiasm about the prospect of achieving clinically useful tools capable of aiding the diagnosis and management of neuropsychiatric disorders. The present work explores the basis for this enthusiasm. We assert that there is no single advance that currently has the potential to drive the field of clinical brain imaging forward...
April 20, 2017: Depression and Anxiety
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