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https://www.readbyqxmd.com/read/27843150/the-bacterial-peptidoglycan-sensing-molecule-pglyrp2-modulates-brain-development-and-behavior
#1
T Arentsen, Y Qian, S Gkotzis, T Femenia, T Wang, K Udekwu, H Forssberg, R Diaz Heijtz
Recent studies have revealed that the gut microbiota modulates brain development and behavior, but the underlying mechanisms are still poorly understood. Here, we show that bacterial peptidoglycan (PGN) derived from the commensal gut microbiota can be translocated into the brain and sensed by specific pattern-recognition receptors (PRRs) of the innate immune system. Using expression-profiling techniques, we demonstrate that two families of PRRs that specifically detect PGN (that is, PGN-recognition proteins and NOD-like receptors), and the PGN transporter PepT1 are highly expressed in the developing brain during specific windows of postnatal development in both males and females...
November 15, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27816610/forward-psychiatry%C3%A2-%C3%A2-early-intervention-for-mental-health-problems-among-uk-armed-forces-in-afghanistan
#2
N Jones, N T Fear, S Wessely, G Thandi, N Greenberg
BACKGROUND: This observational study examined return to duty (RTD) rates following receipt of early mental health interventions delivered by deployed mental health practitioners. METHOD: In-depth clinical interviews were conducted among 975 UK military personnel referred for mental health assessment whilst deployed in Afghanistan. Socio-demographic, military, operational, clinical and therapy outcomes were recorded in an electronic health record database. Rates and predictors of EVAC were the main outcomes examined using adjusted binary logistic regression analyses...
November 3, 2016: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/27801890/changed-gene-expression-in-subjects-with-schizophrenia-and-low-cortical-muscarinic-m1-receptors-predicts-disrupted-upstream-pathways-interacting-with-that-receptor
#3
E Scarr, M Udawela, E A Thomas, B Dean
We tested the hypothesis that, compared with subjects with no history of psychiatric illness (controls), changes in gene expression in the dorsolateral prefrontal cortex from two subgroups of subjects with schizophrenia, one with a marked deficit in muscarinic M1 receptors (muscarinic receptor-deficit schizophrenia (MRDS)), would identify different biochemical pathways that would be affected by their aetiologies. Hence, we measured levels of cortical (Brodmann area 9) mRNA in 15 MRDS subjects, 15 subjects with schizophrenia but without a deficit in muscarinic M1 receptors (non-MRDS) and 15 controls using Affymetrix Exon 1...
November 1, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27793702/clinical-and-biological-predictors-of-response-to-electroconvulsive-therapy-ect-a-review
#4
REVIEW
Martina Pinna, Mirko Manchia, Rossana Oppo, Filomena Scano, Gianluca Pillai, Anna Paola Loche, Piergiorgio Salis, Gian Paolo Minnai
Electroconvulsive therapy (ECT), developed in the 30's by Bini and Cerletti, remains a key element of the therapeutic armamentarium in psychiatry, particularly for severe and life-threatening psychiatric symptoms. However, despite its well-established clinical efficacy, the prescription of ECT has declined constantly over the years due to concerns over its safety (cognitive side effects) and an increasingly negative public perception. As for other treatments in the field of psychiatry, ECT is well suited to a personalized approach that would increment its efficacy, as well as reducing the impact of side effects...
October 25, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27767376/pharmacogenomics-and-histone-deacetylase-inhibitors
#5
Andrew Kl Goey, Tristan M Sissung, Cody J Peer, William D Figg
The histone deacetylase inhibitor valproic acid (VPA) has been used for many decades in neurology and psychiatry. The more recent introduction of the histone deacetylase inhibitors (HDIs) belinostat, romidepsin and vorinostat for treatment of hematological malignancies indicates the increasing popularity of these agents. Belinostat, romidepsin and vorinostat are metabolized or transported by polymorphic enzymes or drug transporters. Thus, genotype-directed dosing could improve pharmacotherapy by reducing the risk of toxicities or preventing suboptimal treatment...
October 21, 2016: Pharmacogenomics
https://www.readbyqxmd.com/read/27742528/age-friendly-communities-initiative-public-health-approach-to-promoting-successful-aging
#6
REVIEW
Dilip V Jeste, Dan G Blazer, Kathleen C Buckwalter, Keri-Leigh K Cassidy, Len Fishman, Lisa P Gwyther, Saul M Levin, Christopher Phillipson, Ramesh R Rao, Ellen Schmeding, William A Vega, Julie A Avanzino, Danielle K Glorioso, John Feather
Older adults consistently prefer aging in place, which requires a high level of community support and services that are currently lacking. With a rapidly aging population, the present infrastructure for healthcare will prove even more inadequate to meet seniors' physical and mental health needs. A paradigm shift away from the sole focus on delivery of interventions at an individual level to more prevention-focused, community-based approaches will become essential. Recent initiatives have been proposed to promote healthy lifestyles and preventive care to enable older adults to age in place...
December 2016: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/27676786/healthcare-pathway-after-sever-traumatic-brain-injury-about-a-tunisian-population
#7
Soumaya Boudokhane, Amine Kalai, Aymen Haj Salah, Houda Migaou, Sana Salah, Anis Jellad, Mourad Gahbiche, Zohra Ben Salah Frih
OBJECTIVE: The aim of our study was to determine the demographic characteristics and the pathway of severe traumatic brain injury (STBI) victims in the Tunisian population. MATERIAL/PATIENTS AND METHODS: Our study included 26 patients victims of STBI hospitalized in intensive care unit, among 450 traumatic head injuries admitted to the Teaching Hospital of Fattouma Bourguiba in Monastir during the year 2014. The studied parameters were: demographic characteristics of the population, circumstances of the accident, transport modalities to the hospital, assessments of the injury types, duration of coma, length of hospitalization in the Intensive Care Unit (ICU) and finally the discharge mode after the ICU stay (transfer to neurosurgery ward, to rehabilitation unit, or home discharged)...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27646260/prevention-of-behavioral-deficits-in-rats-exposed-to-folate-receptor-antibodies-implication-in-autism
#8
A Desai, J M Sequeira, E V Quadros
Folate receptor alpha (FRα) autoantibodies have been associated with fetal abnormalities and cerebral folate deficiency-related developmental disorders. Over 70% of the children with autism spectrum disorders (ASD) are positive for these autoantibodies and high-dose folinic acid is beneficial in treating these children. Here we show that antibodies (Abs) to the rat FRα administered during gestation produce communication, learning and cognitive deficits in a rat model that can be prevented by folinic acid and dexamethasone...
September 20, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27400856/genome-wide-common-and-rare-variant-analysis-provides-novel-insights-into-clozapine-associated-neutropenia
#9
S E Legge, M L Hamshere, S Ripke, A F Pardinas, J I Goldstein, E Rees, A L Richards, G Leonenko, L F Jorskog, K D Chambert, D A Collier, G Genovese, I Giegling, P Holmans, A Jonasdottir, G Kirov, S A McCarroll, J H MacCabe, K Mantripragada, J L Moran, B M Neale, H Stefansson, D Rujescu, M J Daly, P F Sullivan, M J Owen, M C O'Donovan, J T R Walters
The antipsychotic clozapine is uniquely effective in the management of schizophrenia; however, its use is limited by its potential to induce agranulocytosis. The causes of this, and of its precursor neutropenia, are largely unknown, although genetic factors have an important role. We sought risk alleles for clozapine-associated neutropenia in a sample of 66 cases and 5583 clozapine-treated controls, through a genome-wide association study (GWAS), imputed human leukocyte antigen (HLA) alleles, exome array and copy-number variation (CNV) analyses...
July 12, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27217152/attention-deficit-hyperactivity-disorder-in-adults-a-systematic-review-and-meta-analysis-of-genetic-pharmacogenetic-and-biochemical-studies
#10
REVIEW
C Bonvicini, S V Faraone, C Scassellati
The adult form of attention-deficit/hyperactivity disorder has a prevalence of up to 5% and is the most severe long-term outcome of this common disorder. Family studies in clinical samples as well as twin studies suggest a familial liability and consequently different genes were investigated in association studies. Pharmacotherapy with methylphenidate (MPH) seems to be the first-line treatment of choice in adults with attention-deficit hyperactive disorder (ADHD) and some studies were conducted on the genes influencing the response to this drug...
July 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27217150/an-epigenetic-mechanism-links-socioeconomic-status-to-changes-in-depression-related-brain-function-in-high-risk-adolescents
#11
J R Swartz, A R Hariri, D E Williamson
Identifying biological mechanisms through which the experience of adversity emerges as individual risk for mental illness is an important step toward developing strategies for personalized treatment and, ultimately, prevention. Preclinical studies have identified epigenetic modification of gene expression as one such mechanism. Recent clinical studies have suggested that epigenetic modification, particularly methylation of gene regulatory regions, also acts to shape human brain function associated with risk for mental illness...
May 24, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27145766/dimensional-psychiatry-mental-disorders-as-dysfunctions-of-basic-learning-mechanisms
#12
REVIEW
Andreas Heinz, Florian Schlagenhauf, Anne Beck, Carolin Wackerhagen
It has been questioned that the more than 300 mental disorders currently listed in international disease classification systems all have a distinct neurobiological correlate. Here, we support the idea that basic dimensions of mental dysfunctions, such as alterations in reinforcement learning, can be identified, which interact with individual vulnerability and psychosocial stress factors and, thus, contribute to syndromes of distress across traditional nosological boundaries. We further suggest that computational modeling of learning behavior can help to identify specific alterations in reinforcement-based decision-making and their associated neurobiological correlates...
August 2016: Journal of Neural Transmission
https://www.readbyqxmd.com/read/27046647/a-polymorphism-in-the-norepinephrine-transporter-gene-is-associated-with-affective-and-cardiovascular-disease-through-a-microrna-mechanism
#13
F Z Marques, N Eikelis, R G Bayles, E A Lambert, N E Straznicky, D Hering, M D Esler, G A Head, D A Barton, M P Schlaich, G W Lambert
Norepinephrine released from sympathetic nerves is removed from the neuroeffector junction via the action of the norepinephrine transporter (NET). NET impairment is evident in several clinically important conditions including major depressive disorder (MDD), panic disorder (PD), essential hypertension and the postural orthostatic tachycardia syndrome (POTS). We aimed to determine whether a single nucleotide polymorphism (SNP) in the 3' untranslated region (UTR) of the NET gene is associated with NET impairment and to elucidate the mechanisms involved...
April 5, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27043126/relation-of-the-allelic-variants-of-multidrug-resistance-gene-to-agranulocytosis-associated-with-clozapine
#14
A Elif Anıl Yağcioğlu, Gökhan Yoca, Yavuz Ayhan, R Özgür Karaca, Lokman Çevik, Ahmet Müderrisoğlu, Mustafa T Göktaş, Nurhayat Eni, M Kâzım Yazıcı, Atilla Bozkurt, Melih O Babaoğlu
Clozapine use is associated with leukopenia and more rarely agranulocytosis, which may be lethal. The drug and its metabolites are proposed to interact with the multidrug resistance transporter (ABCB1/MDR1) gene product, P-glycoprotein (P-gp). Among various P-glycoprotein genetic polymorphisms, nucleotide changes in exons 26 (C3435T), 21 (G2677T), and 12 (C1236T) have been implicated for changes in pharmacokinetics and pharmacodynamics of many substrate drugs. In this study, we aimed to investigate the association between these specific ABCB1 polymorphisms and clozapine-associated agranulocytosis (CAA)...
June 2016: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/27021815/age-and-alzheimer-s-disease-gene-expression-profiles-reversed-by-the-glutamate-modulator-riluzole
#15
A C Pereira, J D Gray, J F Kogan, R L Davidson, T G Rubin, M Okamoto, J H Morrison, B S McEwen
Alzheimer's disease (AD) and age-related cognitive decline represent a growing health burden and involve the hippocampus, a vulnerable brain region implicated in learning and memory. To understand the molecular effects of aging on the hippocampus, this study characterized the gene expression changes associated with aging in rodents using RNA-sequencing (RNA-seq). The glutamate modulator, riluzole, which was recently shown to improve memory performance in aged rats, prevented many of the hippocampal age-related gene expression changes...
March 29, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27001617/system-based-proteomic-and-metabonomic-analysis-of-the-df-16-a-mouse-identifies-potential-mir-185-targets-and-molecular-pathway-alterations
#16
H Wesseling, B Xu, E J Want, E Holmes, P C Guest, M Karayiorgou, J A Gogos, S Bahn
Deletions on chromosome 22q11.2 are a strong genetic risk factor for development of schizophrenia and cognitive dysfunction. We employed shotgun liquid chromatography-mass spectrometry (LC-MS) proteomic and metabonomic profiling approaches on prefrontal cortex (PFC) and hippocampal (HPC) tissue from Df(16)A(+/-) mice, a model of the 22q11.2 deletion syndrome. Proteomic results were compared with previous transcriptomic profiling studies of the same brain regions. The aim was to investigate how the combined effect of the 22q11...
March 22, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27000169/integrating-home-based-medication-therapy-management-mtm-services-in-a-health-system
#17
Shannon Reidt, Haley Holtan, Jennifer Stender, Toni Salvatore, Bruce Thompson
OBJECTIVES: To describe the integration of home-based Medication Therapy Management (MTM) into the ambulatory care infrastructure of a large urban health system and to discuss the outcomes of this service. SETTING: Minnesota from September 2012 to December 2013. The health system has more than 50 primary care and specialty clinics. Eighteen credentialed MTM pharmacists are located in 16 different primary care and specialty settings, with the greatest number of pharmacists providing services in the internal medicine clinic...
March 2016: Journal of the American Pharmacists Association: JAPhA
https://www.readbyqxmd.com/read/26982886/telemental-health-in-schools
#18
Sharon Stephan, Nancy Lever, Larraine Bernstein, Sarah Edwards, David Pruitt
OBJECTIVE: The purpose of this study was to describe the potential and limits of school telemental health (TMH) to support a full continuum from mental health promotion to intervention, particularly for students less likely to access community care. METHODS: A review of school TMH literature and model programs, and of data from focus groups with child psychiatry fellows, was undertaken to inform best practices and future directions for TMH in schools. RESULTS: Existing data suggest that TMH with children and adolescents is promising and well received...
April 2016: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/26878891/overshadowed-by-the-amygdala-the-bed-nucleus-of-the-stria-terminalis-emerges-as-key-to-psychiatric-disorders
#19
M A Lebow, A Chen
The bed nucleus of the stria terminalis (BNST) is a center of integration for limbic information and valence monitoring. The BNST, sometimes referred to as the extended amygdala, is located in the basal forebrain and is a sexually dimorphic structure made up of between 12 and 18 sub-nuclei. These sub-nuclei are rich with distinct neuronal subpopulations of receptors, neurotransmitters, transporters and proteins. The BNST is important in a range of behaviors such as: the stress response, extended duration fear states and social behavior, all crucial determinants of dysfunction in human psychiatric diseases...
April 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/26830137/co-expression-of-truncated-and-full-length-tau-induces-severe-neurotoxicity
#20
S Ozcelik, F Sprenger, Z Skachokova, G Fraser, D Abramowski, F Clavaguera, A Probst, S Frank, M Müller, M Staufenbiel, M Goedert, M Tolnay, D T Winkler
Abundant tau inclusions are a defining hallmark of several human neurodegenerative diseases, including Alzheimer's disease. Protein fragmentation is a widely observed event in neurodegenerative proteinopathies. The relevance of tau fragmentation for the neurodegenerative process in tauopathies has yet remained unclear. Here we found that co-expression of truncated and full-length human tau in mice provoked the formation of soluble high-molecular-weight tau, the failure of axonal transport, clumping of mitochondria, disruption of the Golgi apparatus and missorting of synaptic proteins...
December 2016: Molecular Psychiatry
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