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Brain and Behavior

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https://www.readbyqxmd.com/read/28293484/structural-and-functional-hyperconnectivity-within-the-sensorimotor-system-in-xenomelia
#1
Jürgen Hänggi, Deborah A Vitacco, Leonie M Hilti, Roger Luechinger, Bernd Kraemer, Peter Brugger
INTRODUCTION: Xenomelia is a rare condition characterized by the persistent and compulsive desire for the amputation of one or more physically healthy limbs. We highlight the neurological underpinnings of xenomelia by assessing structural and functional connectivity by means of whole-brain connectome and network analyses of regions previously implicated in empirical research in this condition. METHODS: We compared structural and functional connectivity between 13 xenomelic men with matched controls using diffusion tensor imaging combined with fiber tractography and resting state functional magnetic resonance imaging...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293483/hippocampal-ampars-involve-the-central-sensitization-of-rats-with-irritable-bowel-syndrome
#2
Aiqin Chen, Yu Chen, Ying Tang, Chengjia Bao, Zizhi Cui, Meng Xiao, Chun Lin
OBJECTIVE: The roles of hippocampal AMPARs were investigated in irritable bowel syndrome (IBS)-like rats to clarify the central sensitization mechanisms. METHODS: IBS model was induced by neonatal maternal separation. The effects of AMPARs on visceral hypersensitivity were examined by the responses of abdominal muscle to colorectal distension after the bilateral intrahippocampal injections of CNQX (an AMPAR inhibitor). The expressions of hippocampal AMPARs (GluR1 and GluR2) were determined by Western blot...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293482/psychometric-properties-of-brief-balance-evaluation-systems-test-brief-bestest-in-evaluating-balance-performance-in-individuals-with-chronic-stroke
#3
Meizhen Huang, Marco Y C Pang
OBJECTIVE: To examine the psychometric properties of the Brief-Balance Evaluation Systems Test (Brief-BESTest) in individuals with chronic stroke. MATERIALS AND METHODS: This was an observational study with repeated measurements involving 50 participants with chronic stroke [mean (SD) age: 59.2 (7.3) years]. Each participant with stroke was evaluated with the Brief-BESTest, Berg balance scale (BBS), Postural Assessment Scale for Stroke Patients (PASS), Fugl-Meyer Motor Assessment (FMA), Chedoke-McMaster Stroke Assessment (CMSA), Montreal Cognitive Assessment (MoCA), and Geriatric Depression Scale (GDS)...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293481/a-genetic-variant-within-sts-previously-associated-with-inattention-in-boys-with-attention-deficit-hyperactivity-disorder-is-associated-with-enhanced-cognition-in-healthy-adult-males
#4
Trevor Humby, Amelia Fisher, Christopher Allen, Meghann Reynolds, Annette Hartman, Ina Giegling, Dan Rujescu, William Davies
INTRODUCTION: The enzyme steroid sulfatase (STS) converts sulfated steroids to their non-sulfated forms. Deficiency for this enzyme is associated with inattention but preserved response control. The polymorphism rs17268988 within the X-linked STS gene is associated with inattentive, but not other, symptoms in boys with attention deficit hyperactivity disorder (ADHD). METHODS: We initially tested whether rs17268988 genotype was associated with attention, response control, and underlying aspects of cognition, using questionnaires and neuropsychological tasks, in two independent cohorts of healthy adult males...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293480/the-role-of-genes-intelligence-personality-and-social-engagement-in-cognitive-performance-in-klinefelter-syndrome
#5
Anne Skakkebæk, Philip J Moore, Anders Degn Pedersen, Anders Bojesen, Maria Krarup Kristensen, Jens Fedder, Peter Laurberg, Jens Michael Hertz, John Rosendahl Østergaard, Mikkel Wallentin, Claus Højbjerg Gravholt
INTRODUCTION: The determinants of cognitive deficits among individuals with Klinefelter syndrome (KS) are not well understood. This study was conducted to assess the impact of general intelligence, personality, and social engagement on cognitive performance among patients with KS and a group of controls matched for age and years of education. METHODS: Sixty-nine patients with KS and 69 controls were assessed in terms of IQ, NEO personality inventory, the Autism Spectrum Quotient (AQ) scale, and measures of cognitive performance reflecting working memory and executive function...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293479/mxa-mrna-decrease-preceding-nab-detection-in-ifn%C3%AE-treated-ms-patients
#6
Jana Libertinova, Eva Meluzinova, Vaclav Matoska, Miroslav Zajac, Ivana Kovarova, Eva Havrdova, Dana Horakova, Ales Tomek, Petr Marusic, Martin Bojar
BACKGROUND: Multiple sclerosis (MS) patients treated with interferon beta (IFNβ) are at risk of a declining response to treatment because of the production of IFNβ-neutralizing antibodies (NAbs). The expression of Myxovirus resistance protein A (MxA) mRNA is regarded as a marker of IFNβ bioactivity. AIMS: The aim of this study was to analyze the kinetics of MxA mRNA expression during long-term IFNβ treatment and assess its relationship to NAb production. METHODS: A prospective, observational, open-label, non-randomized study was designed in multiple sclerosis patients starting IFNβ treatment...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293478/disrupted-brain-network-functional-dynamics-and-hyper-correlation-of-structural-and-functional-connectome-topology-in-patients-with-breast-cancer-prior-to-treatment
#7
Shelli R Kesler, Marjorie Adams, Melissa Packer, Vikram Rao, Ashley M Henneghan, Douglas W Blayney, Oxana Palesh
INTRODUCTION: Several previous studies have demonstrated that cancer chemotherapy is associated with brain injury and cognitive dysfunction. However, evidence suggests that cancer pathogenesis alone may play a role, even in non-CNS cancers. METHODS: Using a multimodal neuroimaging approach, we measured structural and functional connectome topology as well as functional network dynamics in newly diagnosed patients with breast cancer. Our study involved a novel, pretreatment assessment that occurred prior to the initiation of any cancer therapies, including surgery with anesthesia...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293477/braf-v600e-immunohistochemistry-in-a-large-series-of-glial-and-glial-neuronal-tumors
#8
Quentin Breton, Hélène Plouhinec, Delphine Prunier-Mirebeau, Blandine Boisselier, Sophie Michalak, Philippe Menei, Audrey Rousseau
INTRODUCTION: Some glial-neuronal tumors (GNT) (pleomorphic xantho-astrocytoma [PXA], ganglioglioma [GG]) display BRAF-V600E mutation, which represents a diagnostic clue to these entities. Targeted therapies against BRAF-V600 protein have shown promising results in GNT. The aim of this study was to assess the utility of BRAF-V600E immunohistochemistry (IHC, clone VE1) in daily practice in a series of 140 glial, and GNT compared to molecular biology (MB) techniques. METHODS: We performed BRAF-V600E IHC on all 140 cases...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293476/evaluating-the-levels-of-csf-and-serum-factors-in-als
#9
Jie Guo, Xuan Yang, Lina Gao, Dawei Zang
OBJECTIVES: The aim of this study was to identify CSF and serum factors as biomarkers that may aid in distinguishing ALS patients from control subjects and predicting ALS progression as well as prognosis. METHODS: Serum and CSF samples from 105 patients with ALS and 56 control subjects were analyzed for 13 factors using ELISA. The revised ALS functional rating scale (ALSFRS-r) was used to evaluate the overall functional status of ALS patients, and we also followed up with ALS patients either by phone or with clinic visits for five years after enrollment in this study...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293475/nationwide-hospital-based-survey-of-idiopathic-normal-pressure-hydrocephalus-in-japan-epidemiological-and-clinical-characteristics
#10
Nagato Kuriyama, Masakazu Miyajima, Madoka Nakajima, Michiko Kurosawa, Wakaba Fukushima, Yoshiyuki Watanabe, Etsuko Ozaki, Yoshio Hirota, Akiko Tamakoshi, Etsuro Mori, Takeo Kato, Takahiko Tokuda, Akinori Urae, Hajime Arai
OBJECTIVES: There have been no nationwide epidemiological studies of idiopathic normal pressure hydrocephalus (iNPH) in Japan. Therefore, a nationwide epidemiologic survey of iNPH was performed to determine the number of cases and clinical characteristics by sex and diagnostic level. METHODS: The first survey examined the numbers of cases that met the diagnostic criteria of iNPH and those who underwent shunt operations in 2012. The second survey gathered patients' details to clarify their clinical background characteristics...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293474/transition-from-oxcarbazepine-to-eslicarbazepine-acetate-a-single-center-study
#11
Jussi Mäkinen, Sirpa Rainesalo, Jukka Peltola
OBJECTIVES: There is limited clinical evidence for comparison between oxcarbazepine (OXC) and eslicarbazepine acetate (ESL) in terms of tolerability, or how to execute the change from OXC to ESL. We report the process of transitioning patients with focal epilepsy from previous OXC treatment to ESL due to tolerability problems. The rationale for change from OXC is reported, and the outcome with respective to this rationale is analyzed in terms of tolerability and efficacy. MATERIALS AND METHODS: The subjects were transitioned overnight from OXC to ESL in a hospital inpatient setting...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293473/separating-generalized-anxiety-disorder-from-major-depression-using-clinical-hormonal-and-structural-mri-data-a-multimodal-machine-learning-study
#12
Kevin Hilbert, Ulrike Lueken, Markus Muehlhan, Katja Beesdo-Baum
BACKGROUND: Generalized anxiety disorder (GAD) is difficult to recognize and hard to separate from major depression (MD) in clinical settings. Biomarkers might support diagnostic decisions. This study used machine learning on multimodal biobehavioral data from a sample of GAD, MD and healthy subjects to differentiate subjects with a disorder from healthy subjects (case-classification) and to differentiate GAD from MD (disorder-classification). METHODS: Subjects with GAD (n = 19), MD without GAD (n = 14), and healthy comparison subjects (n = 24) were included...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293472/learning-and-memory-disabilities-in-iugr-babies-functional-and-molecular-analysis-in-a-rat-model
#13
Marta Camprubí Camprubí, Rafel Balada Caballé, Juan A Ortega Cano, Maria de Los Angeles Ortega de la Torre, Cristina Duran Fernández-Feijoo, Montserrat Girabent-Farrés, Josep Figueras-Aloy, Xavier Krauel, Soledad Alcántara
INTRODUCTION: 1Intrauterine growth restriction (IUGR) is the failure of the fetus to achieve its inherent growth potential, and it has frequently been associated with neurodevelopmental problems in childhood. Neurological disorders are mostly associated with IUGR babies with an abnormally high cephalization index (CI) and a brain sparing effect. However, a similar correlation has never been demonstrated in an animal model. The aim of this study was to determine the correlations between CI, functional deficits in learning and memory and alterations in synaptic proteins in a rat model of IUGR...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293471/internal-capsule-the-homunculus-distribution-in-the-posterior-limb
#14
Cheng Qian, Fei Tan
INTRODUCTION: In our experience, sometimes, the symptom of patients who suffered from infarction in internal capsule (IC) do not necessarily fit the classical fiber distribution. This study aims to explain this phenomenon. METHODS AND MATERIALS: A total of 34 patients with infarction lesions in the IC were included in this study, according to the clinical symptom, divided into three groups, group A (more severe weakness of the foot than the hand), group B (more severe weakness of the hand than the foot) and group C (equal weakness of hand and foot), and group Y (with facial nerve paresis) and group N (without facial nerve paresis)...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293470/hypothalamic-pituitary-adrenal-axis-and-depression-symptom-effects-of-an-arginine-vasopressin-type-1b-receptor-antagonist-in-a-one-week-randomized-phase-1b-trial
#15
David A Katz, Charles Locke, Nicholas Greco, Wei Liu, Katherine A Tracy
BACKGROUND: Arginine vasopressin 1B receptor (V1B) antagonists may have utility for the treatment of major depressive disorder (MDD). METHODS: The V1B antagonist ABT-436 (N = 31) or matching placebo (N = 20) was administered to MDD subjects for 7 days. The main study objectives were to assess the safety and hypothalamic-pituitary-adrenal axis (HPA) effects of ABT-436 in MDD subjects. MDD symptoms were assessed using the 17-item Hamilton Depression Rating Scale (HAM-D-17) and the subject-rated Mood and Anxiety Symptom Questionnaire (MASQ)...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293469/motor-unit-potentials-of-the-erector-spinae-muscle-by-concentric-needle-electromyography
#16
Andreas Posa, Izabela Niśkiewicz, Alexander Emmer, Yorck Kluge, Malte E Kornhuber
INTRODUCTION: The needle electromyography (EMG) serves to supply additional information in patients with suspected neuromuscular disorders. We aimed to provide motor unit potential (MUP) data by concentric needle EMG in the erector spinae (ES) in comparison with biceps brachii (BB) and lateral vastus (LV). METHODS: Electromyography MUP data (n) were obtained in ES (517), BB (539), and LV (627) in 32 healthy volunteers (16f). RESULTS: Motor unit potential data: amplitude (μV) 393 ± 174 (ES), 375 ± 162 (BB), and 577 ± 304 (LV); duration (ms) 10...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293468/a-method-for-independent-component-graph-analysis-of-resting-state-fmri
#17
Demetrius Ribeiro de Paula, Erik Ziegler, Pubuditha M Abeyasinghe, Tushar K Das, Carlo Cavaliere, Marco Aiello, Lizette Heine, Carol di Perri, Athena Demertzi, Quentin Noirhomme, Vanessa Charland-Verville, Audrey Vanhaudenhuyse, Johan Stender, Francisco Gomez, Jean-Flory L Tshibanda, Steven Laureys, Adrian M Owen, Andrea Soddu
INTRODUCTION: Independent component analysis (ICA) has been extensively used for reducing task-free BOLD fMRI recordings into spatial maps and their associated time-courses. The spatially identified independent components can be considered as intrinsic connectivity networks (ICNs) of non-contiguous regions. To date, the spatial patterns of the networks have been analyzed with techniques developed for volumetric data. OBJECTIVE: Here, we detail a graph building technique that allows these ICNs to be analyzed with graph theory...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293467/relationships-between-cardiorespiratory-fitness-hippocampal-volume-and-episodic-memory-in-a-population-at-risk-for-alzheimer-s-disease
#18
Ryan J Dougherty, Stephanie A Schultz, Elizabeth A Boots, Laura D Ellingson, Jacob D Meyer, Stephanie Van Riper, Aaron J Stegner, Dorothy F Edwards, Jennifer M Oh, Jean Einerson, Claudia E Korcarz, Rebecca L Koscik, Maritza N Dowling, Catherine L Gallagher, Cynthia M Carlsson, Howard A Rowley, Barbara B Bendlin, Sanjay Asthana, Bruce P Hermann, Mark A Sager, James H Stein, Sterling C Johnson, Ozioma C Okonkwo, Dane B Cook
INTRODUCTION: Cardiorespiratory fitness (CRF) has been shown to be related to brain health in older adults. In individuals at risk for developing Alzheimer's disease (AD), CRF may be a modifiable risk factor that could attenuate anticipated declines in brain volume and episodic memory. The objective of this study was to determine the association between CRF and both hippocampal volume and episodic memory in a cohort of cognitively healthy older adults with familial and/or genetic risk for Alzheimer's disease (AD)...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293466/cadasil-ultrastructural-insights-into-the-morphology-of-granular-osmiophilic-material
#19
Teresa Lorenzi, Michele Ragno, Francesca Paolinelli, Clara Castellucci, Marina Scarpelli, Manrico Morroni
INTRODUCTION: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a hereditary systemic vascular disorder. Granular osmiophilic material (GOM) is its ultrastructural marker. We reviewed tissue biopsies from CADASIL patients to establish whether ultrastructural observations help clarify the pathogenic mechanism of CADASIL. Given the resemblance of the GOM deposits to the immunoglobulin deposits seen in glomerulonephritis and focal segmental glomerulosclerosis (FSGS), their morphologies were investigated and compared...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293465/the-effect-of-vortioxetine-on-overall-patient-functioning-in-patients-with-major-depressive-disorder
#20
Ioana Florea, Henrik Loft, Natalya Danchenko, Benoît Rive, Melanie Brignone, Elizabeth Merikle, Paula L Jacobsen, David V Sheehan
BACKGROUND: The objectives of this meta-analysis of data from randomized, placebo-controlled studies were to assess the effect of vortioxetine on overall functioning (primary) and functional remission (secondary) using the Sheehan Disability Scale (SDS) in adults with major depressive disorder (MDD). METHODS: Data from nine short-term (6/8 weeks) pivotal studies that included patient functioning assessments were included in this random-effects meta-analysis, which used aggregated study-level data for all therapeutic vortioxetine doses and a mixed-effect model for repeated measures using the full analysis set...
March 2017: Brain and Behavior
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