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https://www.readbyqxmd.com/read/29474680/shared-genetic-risk-of-schizophrenia-and-gray-matter-reduction-in-6p22-1
#1
Jiayu Chen, Vince D Calhoun, Dongdong Lin, Nora I Perrone-Bizzozero, Juan R Bustillo, Godfrey D Pearlson, Steven G Potkin, Theo G M van Erp, Fabio Macciardi, Stefan Ehrlich, Beng-Choon Ho, Scott R Sponheim, Lei Wang, Julia M Stephen, Andrew R Mayer, Faith M Hanlon, Rex E Jung, Brett A Clementz, Matcheri S Keshavan, Elliot S Gershon, John A Sweeney, Carol A Tamminga, Ole A Andreassen, Ingrid Agartz, Lars T Westlye, Jing Sui, Yuhui Du, Jessica A Turner, Jingyu Liu
Genetic factors are known to influence both risk for schizophrenia (SZ) and variation in brain structure. A pressing question is whether the genetic underpinnings of brain phenotype and the disorder overlap. Using multivariate analytic methods and focusing on 1,402 common single-nucleotide polymorphisms (SNPs) mapped from the Psychiatric Genomics Consortium (PGC) 108 regions, in 777 discovery samples, we identified 39 SNPs to be significantly associated with SZ-discriminating gray matter volume (GMV) reduction in inferior parietal and superior temporal regions...
February 21, 2018: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29474329/how-critical-illness-affects-the-brain%C3%A2-and-vice-versa
#2
Thomas P Bleck
No abstract text is available yet for this article.
March 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29473781/prediction-of-depression-and-anxiety-via-patient-assessed-tremor-severity-not-physician-reported-motor-symptom-severity-in-patients-with-parkinson-s-disease-or-essential-tremor-who-have-undergone-deep-brain-stimulation
#3
Rebecca L Achey, Erin Yamamoto, Daniel Sexton, Christine Hammer, Bryan S Lee, Robert S Butler, Nicolas R Thompson, Sean J Nagel, Andre G Machado, Darlene A Lobel
OBJECTIVE Deep brain stimulation (DBS) is an effective therapy for movement disorders such as idiopathic Parkinson's disease (PD) and essential tremor (ET). However, some patients who demonstrate benefit on objective motor function tests do not experience postoperative improvement in depression or anxiety, 2 important components of quality of life (QOL). Thus, to examine other possible explanations for the lack of a post-DBS correlation between improved objective motor function and decreased depression or anxiety, the authors investigated whether patient perceptions of motor symptom severity might contribute to disease-associated depression and anxiety...
February 23, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29473174/variation-in-red-cell-transfusion-decisions-in-the-intensive-care-unit-a-nationwide-survey-in-the-netherlands
#4
F J Kranenburg, S A Willems, S Le Cessie, P J Marang-van de Mheen, J G van der Bom, M S Arbous
BACKGROUND AND OBJECTIVES: Most guidelines recommend a restrictive transfusion trigger of 7 g/dl. It is unclear whether this resulted in more uniform transfusion practices. The primary objective was to uncover the extent of variation in transfusion decisions within four scenarios of critically ill patients among critical care physicians in the Netherlands. MATERIALS AND METHODS: An online survey comprising four different hypothetical clinical scenarios was sent to all members of the Dutch Society of Intensive Care...
February 23, 2018: Vox Sanguinis
https://www.readbyqxmd.com/read/29472167/preliminary-evidence-for-neural-responsiveness-to-infants-in-mothers-with-schizophrenia-and-the-implications-for-healthy-parenting
#5
K M Abel, R E Elliott, D Downey, H Strachan, A Elmadih, A Wieck, S Williams, J Crowell, M W Wan
Schizophrenia is a severe mental illness that may significantly affect maternal sensitive behaviour. Neural correlates of maternal behaviour represent a potentially valuable means of differentiating objectively between healthy mothers expressing variations in maternal sensitivity. As mothers with schizophrenia (MWS) show deficits in behavioural responses to infants compared to healthy mothers, we explored whether maternal brain responses to infant stimuli would be significantly reduced in MWS. We also examined whether differences in maternal behaviour between healthy and ill mothers (during play interactions with own infant) were associated with differences in brain activation to infant stimuli...
February 19, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29471348/sexual-dimorphism-of-resting-state-network-connectivity-in-healthy-ageing
#6
Sharna D Jamadar, Francesco Sforazzini, Parnesh Raniga, Nicholas J Ferris, Bryan Paton, Michael J Bailey, Amy Brodtmann, Paul A Yates, Geoffrey A Donnan, Stephanie A Ward, Robyn L Woods, Elsdon Storey, John J McNeil, Gary F Egan
Objectives: The onset of many illnesses is confounded with age and sex. Increasing age is a risk factor for the development of many illnesses, and sexual dimorphism influences brain anatomy, function, and cognition. Here, we examine frequency-specific connectivity in resting-state networks in a large sample (n = 406) of healthy aged adults. Method: We quantify frequency-specific connectivity in three resting-state networks known to be implicated in age-related decline: the default mode, dorsal attention, and salience networks, using multiband functional magnetic resonance imaging...
February 17, 2018: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/29468065/neuroimaging-in-bulimia-nervosa-and-binge-eating-disorder-a-systematic-review
#7
REVIEW
Brooke Donnelly, Stephen Touyz, Phillipa Hay, Amy Burton, Janice Russell, Ian Caterson
Objective: In recent decades there has been growing interest in the use of neuroimaging techniques to explore the structural and functional brain changes that take place in those with eating disorders. However, to date, the majority of research has focused on patients with anorexia nervosa. This systematic review addresses a gap in the literature by providing an examination of the published literature on the neurobiology of individuals who binge eat; specifically, individuals with bulimia nervosa (BN) and binge eating disorder (BED)...
2018: Journal of Eating Disorders
https://www.readbyqxmd.com/read/29468002/idiopathic-non-traumatic-facial-nerve-palsy-bell-s-palsy-in-neonates-an-atypical-age-and-management-dilemma
#8
Abdulhafeez M Khair, Khalid Ibrahim
Idiopathic (Bell's) palsy is the commonest cause of unilateral facial paralysis in children. Although being idiopathic by definition, possible infectious, inflammatory, and ischemic triggers have been suggested. Bell's palsy is thought to be responsible for up to three-fourths of cases of acute unilateral facial paralysis worldwide. The diagnosis has to be reached after other causes of acute peripheral palsy have been excluded. However, it is rarely described in neonates and young infants. Steroids may have some role in treatment, but antiviral therapies have doubtful evidence of benefit...
January 2018: Oman Medical Journal
https://www.readbyqxmd.com/read/29467681/glutamate-levels-and-resting-cerebral-blood-flow-in-anterior-cingulate-cortex-are-associated-at-rest-and-immediately-following-infusion-of-s-ketamine-in-healthy-volunteers
#9
Kirsten Borup Bojesen, Kasper Aagaard Andersen, Sophie Nordahl Rasmussen, Lone Baandrup, Line Malmer Madsen, Birte Yding Glenthøj, Egill Rostrup, Brian Villumsen Broberg
Progressive loss of brain tissue is seen in some patients with schizophrenia and might be caused by increased levels of glutamate and resting cerebral blood flow (rCBF) alterations. Animal studies suggest that the normalisation of glutamate levels decreases rCBF and prevents structural changes in hippocampus. However, the relationship between glutamate and rCBF in anterior cingulate cortex (ACC) of humans has not been studied in the absence of antipsychotics and illness chronicity. Ketamine is a noncompetitive N -methyl-D-aspartate receptor antagonist that transiently induces schizophrenia-like symptoms and neurobiological disturbances in healthy volunteers (HVs)...
2018: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29466898/the-antiepileptic-and-neuroprotective-effect-of-the-buxus-hyrcana-pojark-hydroethanolic-extract-against-the-pentylentetrazol-induced-model-of-the-seizures-in-the-male-rats
#10
Vahid Azizi, Farzin Allahyari, Abdolkarim Hosseini
AIMS: The genus Buxus grows up widespread in Europe and Western Asia. It is an important traditional plant has been used in the treatment of many illnesses. In the present study, the effect of hydroethanolic extract of Buxus hyrcana Pojark (BHP) on the animal model of seizure was studied. MATERIALS AND METHODS: In this experimental study, forty-two male Wistar rats weighing 220-250 g were randomly selected and were divided into experimental and control groups (6 rats per group)...
February 22, 2018: International Journal of Neuroscience
https://www.readbyqxmd.com/read/29465895/-clinical-neurophysiological-methods-in-diagnosis-and-treatment-of-cerebrovascular-diseases
#11
REVIEW
Ildikó Nagy, Dániel Fabó
Neurophysiological methods are gaining ground in the diagnosis and therapy of cerebrovascular disease. While the role of the EEG (electroencephalography) in the diagnosis of post-stroke epilepsy is constant, quantitative EEG para-meters, as new indicators of early efficiency after thrombolysis or in prognosis of patient's condition have proved their effectiveness in several clinical studies. In intensive care units, continuous EEG monitoring of critically ill patients became part of neurointenzive care protocols...
January 30, 2018: Ideggyógyászati Szemle
https://www.readbyqxmd.com/read/29464512/feasibility-of-continuous-sedation-monitoring-in-critically-ill-intensive-care-unit-patients-using-the-neurosense-wav-cns-index
#12
Nicholas West, Paul B McBeth, Sonia M Brodie, Klaske van Heusden, Sarah Sunderland, Guy A Dumont, Donald E G Griesdale, J Mark Ansermino, Matthias Görges
Sedation in the intensive care unit (ICU) is challenging, as both over- and under-sedation are detrimental. Current methods of assessment, such as the Richmond Agitation Sedation Scale (RASS), are measured intermittently and rely on patients' behavioral response to stimulation, which may interrupt sleep/rest. A non-stimulating method for continuous sedation monitoring may be beneficial and allow more frequent assessment. Processed electroencephalography (EEG) monitors have not been routinely adopted in the ICU...
February 20, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29461332/improvements-in-health-related-quality-of-life-with-electroconvulsive-therapy-a-meta-analysis
#13
Peter Giacobbe, Uros Rakita, Kirsten Penner-Goeke, Kfir Feffer, Alastair J Flint, Sidney H Kennedy, Jonathan Downar
INTRODUCTION: Although the antidepressant efficacy of ECT is well documented, patient-reported outcomes after this treatment are less well characterized. The aims of the current meta-analysis are to quantify the impact of an acute course of ECT on health-related quality of life (HRQoL) and to identify related moderators, specifically post-ECT depressive symptom remission and patient age. METHODS: We searched PubMed, PsycINFO, and Web of Science databases for randomized and nonrandomized studies that report on changes in HRQoL measures after an acute course of ECT...
February 14, 2018: Journal of ECT
https://www.readbyqxmd.com/read/29461039/dark-classics-in-chemical-neuroscience-lysergic-acid-diethylamide-lsd
#14
David E Nichols
LSD is one of the most potent psychoactive agents known, producing dramatic alterations of consciousness after submilligram (≥20 g) oral doses. Following the accidental discovery of its potent psychoactive effects in 1943, it was supplied by Sandoz Laboratories as an experimental drug that might be useful as an adjunct for psychotherapy, or to give psychiatrists insight into the mental processes in their patients. The finding of serotonin in the mammalian brain in 1953, and its structural resemblance to LSD, quickly led to ideas that serotonin in the brain might be involved in mental illness, initiating rapid research interest in the neurochemistry of serotonin...
February 20, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29459824/-egr3-immediate-early-gene-and-the-brain-derived-neurotrophic-factor-in-bipolar-disorder
#15
Bianca Pfaffenseller, Flavio Kapczinski, Amelia L Gallitano, Fábio Klamt
Bipolar disorder (BD) is a severe psychiatric illness with a consistent genetic influence, involving complex interactions between numerous genes and environmental factors. Immediate early genes (IEGs) are activated in the brain in response to environmental stimuli, such as stress. The potential to translate environmental stimuli into long-term changes in brain has led to increased interest in a potential role for these genes influencing risk for psychiatric disorders. Our recent finding using network-based approach has shown that the regulatory unit of early growth response gene 3 ( EGR3 ) of IEGs family was robustly repressed in postmortem prefrontal cortex of BD patients...
2018: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29459822/neuromodulation-via-the-cerebrospinal-fluid-insights-from-recent-in-vitro-studies
#16
REVIEW
Andreas Bjorefeldt, Sebastian Illes, Henrik Zetterberg, Eric Hanse
The cerebrospinal fluid (CSF) occupies the brain's ventricles and subarachnoid space and, together with the interstitial fluid (ISF), forms a continuous fluidic network that bathes all cells of the central nervous system (CNS). As such, the CSF is well positioned to actively distribute neuromodulators to neural circuits in vivo via volume transmission. Recent in vitro experimental work in brain slices and neuronal cultures has shown that human CSF indeed contains neuromodulators that strongly influence neuronal activity...
2018: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/29458703/a-case-of-narcolepsy-type-2-and-postural-tachycardia-syndrome-secondary-to-lesions-of-the-thalamus-and-amygdala
#17
Paul Kim, Emmanuel During, Mitchell Miglis
Although there are reports of narcolepsy type 1 caused by lesions of the central nervous system, there are far fewer reports of narcolepsy type 2 (NT2) caused by discrete brain lesions. We report a case of a patient in whom NT2 was diagnosed after a viral illness, and inflammatory lesions in the right thalamus and amygdala were found. In addition, symptoms of autonomic impairment developed and postural tachycardia syndrome was subsequently diagnosed in this patient. To our knowledge this is the first reported case of NT2 resulting from central nervous system lesions in these discrete locations, as well as the first reported case of postural tachycardia syndrome associated with narcolepsy...
February 13, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29456074/histone-deacetylases-hdacs-as-therapeutic-target-for-depressive-disorders
#18
REVIEW
Paulina Misztak, Patrycja Pańczyszyn-Trzewik, Magdalena Sowa-Kućma
Major depressive disorder (MDD) represents approximately 40% of the disability caused by mental illnesses globally. The poorly understood pathophysiology and limited efficiency of pharmacological treatment (based primarily on the principles of the monoaminergic hypothesis) make depression a serious medical, public and socio-economical problem. An increasing number of studies suggest that epigenetic modifications (alterations in gene expression that are not due to changes in DNA sequence) in certain brain regions and neural circuits represent a key mechanism through which environmental factors interact with individual's genetic constitution to affect risk of mental disorders...
August 12, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29454511/musical-deficits-and-cortical-thickness-in-people-with-schizophrenia
#19
Ryosuke Fujito, Masayoshi Minese, Sanae Hatada, Naoto Kamimura, Shigeru Morinobu, Donna J Lang, William G Honer, Ken Sawada
Investigation of acquired amusia caused by brain damage suggested that cortical lesions of the right hemisphere contributed to musical deficits. We previously reported reduced musical ability in schizophrenia; these deficits were correlated with clinical manifestations such as cognitive dysfunction and negative symptoms. However, the neural substrate underlying the musical disability in schizophrenia remains unclear. We investigated the relationship between musical deficits and cortical thickness in patients with schizophrenia using structural MRI...
February 14, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29452862/protective-effect-of-human-leukocyte-antigen-hla-allele-drb1-13-02-on-age-related-brain-gray-matter-volume-reduction-in-healthy-women
#20
Lisa M James, Peka Christova, Scott M Lewis, Brian E Engdahl, Angeliki Georgopoulos, Apostolos P Georgopoulos
BACKGROUND: Reduction of brain volume (brain atrophy) during healthy brain aging is well documented and dependent on genetic, lifestyle and environmental factors. Here we investigated the possible dependence of brain gray matter volume reduction in the absence of the Human Leukocyte Antigen (HLA) allele DRB1*13:02 which prevents brain atrophy in Gulf War Illness (James et al., 2017). METHODS: Seventy-one cognitively healthy women (32-69years old) underwent a structural Magnetic Resonance Imaging (sMRI) scan to measure the volumes of total gray matter, cerebrocortical gray matter, and subcortical gray matter...
February 8, 2018: EBioMedicine
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