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https://www.readbyqxmd.com/read/28939587/expression-and-genetic-variation-in-neuroendocrine-signaling-pathways-in-lethal-and-nonlethal-prostate-cancer-among-men-diagnosed-with-localized-disease
#1
Donghao Lu, Jessica Carlsson, Kathryn L Penney, Sabina Davidsson, Swen-Olof Andersson, Lorelei A Mucci, Unnur Valdimarsdóttir, Ove Andrén, Fang Fang, Katja Fall
BACKGROUND: Recent data suggest that neuroendocrine signaling pathways may play a role in the progression of prostate cancer, particularly for early-stage disease. We aimed to explore whether expression of selected genes in the adrenergic, serotoninergic, glucocorticoid, and dopaminergic pathways differs in prostate tumor tissue from men with lethal disease compared to men with nonlethal disease. METHODS: Based on the Swedish Watchful Waiting Cohort, we included 511 men diagnosed with incidental prostate cancer through TURP during 1977-1998 with follow-up up to 30 years...
September 22, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28902619/a-case-control-association-study-of-12-candidate-genes-and-attempted-suicide-in-french-adolescents
#2
Bojan Mirkovic, David Cohen, Claudine Laurent, Malaika Lasfar, Christophe Marguet, Prsicille Gerardin
Background Suicide is the second leading cause of death for 10-19-year-olds. Evidence has shown that attempted suicide is a complex interplay of genes and environmental factors. In the adult population, possible associations between genetic polymorphisms and suicidal behaviors have been investigated for several genes, most often with inconsistent findings and poor replicability of significant associations. This study aimed to identify gene variants conferring risk for adolescent suicide attempt. Methods We selected the genes and variants after an analysis of the literature and a selection of the most significant associations identified...
September 13, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28900078/-polymorphic-variants-of-glutamate-receptor-grik5-grin2b-and-serotonin-receptor-htr2a-genes-are-associated-with-chronic-obstructive-pulmonary-disease
#3
G F Korytina, L Z Akhmadishina, O V Kochetova, Y G Aznabaeva, Sh Z Zagidullin, T V Victorova
Chronic obstructive pulmonary disease (COPD) is a complex chronic inflammatory disease of the respiratory system that affects primarily distal respiratory pathways and lung parenchyma. Smoking tobacco is a major risk factor for COPD. The relationship of HTR4 (rs3995090), HTR2A (rs6313), GRIK5 (rs8099939), GRIN2B (rs2268132), and CHRNB4 (rs1948) gene polymorphisms and COPD, as well as the contribution of these polymorphisms to the variations in quantitative characteristics that describe respiratory function, smoking behavior, and nicotine dependence was assessed in an ethnically homogeneous Tatar population...
July 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28837927/parental-transfer-of-microcystin-lr-induced-transgenerational-effects-of-developmental-neurotoxicity-in-zebrafish-offspring
#4
Qin Wu, Wei Yan, Houcheng Cheng, Chunsheng Liu, Tien-Chieh Hung, Xiaochun Guo, Guangyu Li
Microcystin-LR (MCLR) has been reported to cause developmental neurotoxicity in zebrafish, but there are few studies on the mechanisms of MCLR-induced transgenerational effects of developmental neurotoxicity. In this study, zebrafish were exposed to 0, 1, 5, and 25 μg/L MCLR for 60 days. The F1 zebrafish embryos from the above-mentioned parents were collected and incubated in clean water for 120 h for hatching. After examining the parental zebrafish and F1 embryos, MCLR was detected in the gonad of adults and F1 embryos, indicating MCLR could potentially be transferred from parents to offspring...
August 21, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28825719/central-amygdala-circuits-modulate-food-consumption-through-a-positive-valence-mechanism
#5
Amelia M Douglass, Hakan Kucukdereli, Marion Ponserre, Milica Markovic, Jan Gründemann, Cornelia Strobel, Pilar L Alcala Morales, Karl-Klaus Conzelmann, Andreas Lüthi, Rüdiger Klein
The complex behaviors underlying reward seeking and consumption are integral to organism survival. The hypothalamus and mesolimbic dopamine system are key mediators of these behaviors, yet regulation of appetitive and consummatory behaviors outside of these regions is poorly understood. The central nucleus of the amygdala (CeA) has been implicated in feeding and reward, but the neurons and circuit mechanisms that positively regulate these behaviors remain unclear. Here, we defined the neuronal mechanisms by which CeA neurons promote food consumption...
August 21, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28809398/precision-medicine-for-suicidality-from-universality-to-subtypes-and-personalization
#6
A B Niculescu, H Le-Niculescu, D F Levey, P L Phalen, H L Dainton, K Roseberry, E M Niculescu, J O Niezer, A Williams, D L Graham, T J Jones, V Venugopal, A Ballew, M Yard, T Gelbart, S M Kurian, A Shekhar, N J Schork, G E Sandusky, D R Salomon
Suicide remains a clear, present and increasing public health problem, despite being a potentially preventable tragedy. Its incidence is particularly high in people with overt or un(der)diagnosed psychiatric disorders. Objective and precise identification of individuals at risk, ways of monitoring response to treatments and novel preventive therapeutics need to be discovered, employed and widely deployed. We sought to investigate whether blood gene expression biomarkers for suicide (that is, a 'liquid biopsy' approach) can be identified that are more universal in nature, working across psychiatric diagnoses and genders, using larger cohorts than in previous studies...
September 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28806488/serotonergic-5-ht2b-receptors-in-mitral-valvulopathy-bone-marrow-mobilization-of-endothelial-progenitors
#7
Estelle Ayme-Dietrich, Roland Lawson, Francine Côté, Claudia de Tapia, Sylvia Da Silva, Claudine Ebel, Béatrice Hechler, Christian Gachet, Jérome Guyonnet, Hélène Rouillard, Jordane Stoltz, Emily Quentin, Sophie Banas, François Daubeuf, Nelly Frossard, Bernard Gasser, Jean-Philippe Mazzucotelli, Olivier Hermine, Luc Maroteaux, Laurent Monassier
BACKGROUND: Valvular heart disease is highly prevalent in industrialized countries. Chronic use of anorexigens, amphetamine or ergot derivatives targeting the serotonin system has been associated with valvular heart disease. PURPOSE AND EXPERIMENTAL APPROACH: Here, we investigated the contribution of serotonin receptors in a mouse model of valve degeneration induced by nordexfenfluramine, the main metabolite of the anorexigens dexfenfluramine and benfluorex. KEY RESULTS: Chronically activated 5-HT2B receptors by nordexfenfluramine in mice mimicked early steps of mitral valve remodelling attested by increased valve thickness, and cell density in a thick extracellular matrix...
August 14, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28755876/a-computational-network-analysis-based-on-targets-of-antipsychotic-agents
#8
Lei Gao, Shuo Feng, Zhao-Yuan Liu, Jiu-Qiang Wang, Ke-Ke Qi, Kai Wang
Currently, numerous antipsychotic agents have been developed in the area of pharmacological treatment of schizophrenia. However, the molecular mechanism underlying multi targets of antipsychotics were yet to be explored. In this study we performed a computational network analysis based on targets of antipsychotic agents. We retrieved a total of 96 targets from 56 antipsychotic agents. By expression enrichment analysis, we identified that the expressions of antipsychotic target genes were significantly enriched in liver, brain, blood and corpus striatum...
July 26, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28751646/an-integrative-computational-approach-to-evaluate-genetic-markers-for-bipolar-disorder
#9
Yong Xu, Jun Wang, Shuquan Rao, McKenzie Ritter, Lydia C Manor, Robert Backer, Hongbao Cao, Zaohuo Cheng, Sha Liu, Yansong Liu, Lin Tian, Kunlun Dong, Yin Yao Shugart, Guoqiang Wang, Fuquan Zhang
Studies to date have reported hundreds of genes connected to bipolar disorder (BP). However, many studies identifying candidate genes have lacked replication, and their results have, at times, been inconsistent with one another. This paper, therefore, offers a computational workflow that can curate and evaluate BP-related genetic data. Our method integrated large-scale literature data and gene expression data that were acquired from both postmortem human brain regions (BP case/control: 45/50) and peripheral blood mononuclear cells (BP case/control: 193/593)...
July 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716530/genetic-association-analysis-of-serotonin-and-signal-transduction-pathways-in-suicide-attempters-from-an-italian-sample-of-psychiatric-patients
#10
Maurizio Pompili, Giovanna Gentile, Catia Scassellati, Cristian Bonvicini, Marco Innamorati, Denise Erbuto, Franco Montebovi, Giuseppe Ducci, Alberto Forte, Eleonora De Pisa, Stefano Ferracuti, Gianluca Serafini, Vincenzo De Luca, Mario Amore, Maurizio Simmaco, Paolo Girardi
Genetic factors have been reported to contribute to the liability of suicide. We aimed to investigate functional polymorphisms in eight genes (serotonin transporter, SLC6A4; receptors, 5HTR1A, 1B, 5HTR2A; Tryptophan Hydroxylase, TPH1, TPH2; Monoamine Oxidase, MAOA and G Protein Subunit Beta 3, GNB3) to investigate their predictive value for suicide. The possible confounding effects of gender and phenotypic patients dissection were also valued. A sample of 111 consecutive psychiatric inpatients was recruited and assessed using specific psychometric instruments...
July 14, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28701958/a-single-dose-of-lsd-does-not-alter-gene-expression-of-the-serotonin-2a-receptor-gene-htr2a-or-early-growth-response-genes-egr1-3-in-healthy-subjects
#11
Patrick C Dolder, Edna Grünblatt, Felix Müller, Stefan J Borgwardt, Matthias E Liechti
Rationale: Renewed interest has been seen in the use of lysergic acid diethylamide (LSD) in psychiatric research and practice. The repeated use of LSD leads to tolerance that is believed to result from serotonin (5-HT) 5-HT2A receptor downregulation. In rats, daily LSD administration for 4 days decreased frontal cortex 5-HT2A receptor binding. Additionally, a single dose of LSD acutely increased expression of the early growth response genes EGR1 and EGR2 in rat and mouse brains through 5-HT2A receptor stimulation...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28696411/combined-study-of-genetic-and-epigenetic-biomarker-risperidone-treatment-efficacy-in-chinese-han-schizophrenia-patients
#12
Y Shi, M Li, C Song, Q Xu, R Huo, L Shen, Q Xing, D Cui, W Li, J Zhao, L He, S Qin
Nowadays, risperidone is an atypical antipsychotic drug that has been increasingly used for treatment and maintenance therapy in schizophrenia. However, partially affected by genetic or environmental factors, there is significant difference in treatment outcomes among patients. In this study, we aimed to interpret the difference between good and poor responders treated with risperidone in both genetic and epigenetic levels in 288 mainland Chinese patients. We recruited a Henan cohort including 98 patients as initial discovery group and then confirmed our results in Shanghai cohort...
July 11, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28639488/prenatal-exposure-to-serotonin-reuptake-inhibitors-and-congenital-heart-anomalies-an-exploratory-pharmacogenetics-study
#13
Aizati N A Daud, Jorieke E H Bergman, Wilhelmina S Kerstjens-Frederikse, Pieter van der Vlies, Eelko Hak, Rolf M F Berger, Henk Groen, Bob Wilffert
AIM: To explore the role of pharmacogenetics in determining the risk of congenital heart anomalies (CHA) with prenatal use of serotonin reuptake inhibitors. METHODS: We included 33 case-mother dyads and 2 mother-only (child deceased) cases of CHA in a case-only study. Ten genes important in determining fetal exposure to serotonin reuptake inhibitors were examined: CYP1A2, CYP2C9, CYP2C19, CYP2D6, ABCB1, SLC6A4, HTR1A, HTR1B, HTR2A and HTR3B. RESULTS: Among the exposed cases, polymorphisms that tended to be associated with an increased risk of CHA were SLC6A4 5-HTTLPR and 5-HTTVNTR, HTR1A rs1364043, HTR1B rs6296 and rs6298 and HTR3B rs1176744, but none reached statistical significance due to our limited sample sizes...
June 22, 2017: Pharmacogenomics
https://www.readbyqxmd.com/read/28576508/a-review-of-the-role-of-serotonin-system-genes-in-obsessive-compulsive-disorder
#14
REVIEW
Vanessa M Sinopoli, Christie L Burton, Sefi Kronenberg, Paul D Arnold
Obsessive-compulsive disorder (OCD) is a debilitating neuropsychiatric disorder that causes the patient to experience intrusive thoughts and/or to carry out repetitive, ritualized behaviors that are time consuming and impairing. OCD is familial and heritable. The genetic factors responsible for pathogenesis, however, remain largely unknown despite the numerous candidate gene studies conducted. Based on efficacy of serotonin reuptake inhibitors (SRIs) in treating OCD, serotonin system genes have been a dominant focus in OCD candidate gene studies...
May 30, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28549544/genetic-dissection-of-five-ethnic-groups-from-punjab-north-west-india-a-study-based-on-autosomal-markers
#15
Gagandeep Singh, Indu Talwar, Harkirat Singh Sandhu, Kawaljit Matharoo, A J S Bhanwer
The present study assessed the applicability of Alu insertion elements and Single Nucleotide Polymorphisms (SNPs) in forensic identification and estimated the extent of genetic variation in five major ethnic groups of Punjab, North-West India. A total of 1012 unrelated samples belonging to Banias, Brahmins, Jat Sikhs, Khatris and Scheduled Castes were genotyped for four Alu elements (ACE, APO, PLAT, D1) and six Single Nucleotide Polymorphisms [ESR (PvuII), LPL (PvuII), HTR2A (MspI), DRD2 Taq1A, Taq1B, Taq1D]...
May 2017: Legal Medicine
https://www.readbyqxmd.com/read/28537235/-serotonergic-genes-in-the-development-of-anxiety-depression-like-state-and-pathology-of-aggressive-behavior-in-male-mice-rna-seq-data
#16
N N Kudryavtseva, D A Smagin, I L Kovalenko, A G Galyamina, G B Vishnivetskaya, V N Babenko, Yu L Orlov
In course of daily agonistic interactions, mice tend to stratify into those with chronic social defeats and those that repeatedly display aggression, which lead to the development of mixed anxiety/depression-like state and the pathology of aggressive behavior, respectively. Using the data of whole transcriptome analysis (RNA-seq), the changes in the expression of serotonergic genes involved in the synthesis, inactivation, and reception of serotonin, as well as of the Creb1 (transcription factor) gene and the Bdnf (brain-derived neurotrophic factor) gene were detected in the striatum (STR), ventral tegmental area (VTA), midbrain raphe nuclei (MRN), hypothalamus (HYP), and hippocampus (HIP) of defeated and aggressive male mice...
March 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28515818/pharmacogenomic-testing-for-psychotropic-medication-selection-a-systematic-review-of-the-assurex-genesight-psychotropic-test
#17
(no author information available yet)
BACKGROUND: A large proportion of the Ontario population lives with a diagnosed mental illness. Nearly 5% of Ontarians have major depressive disorder, and another 5% have another type of depressive disorder, bipolar disorder, schizophrenia, anxiety, or some other disorder not otherwise specified. Medications are commonly used to treat mental illness, but choosing the right medication for each patient is challenging, and more than 40% of patients discontinue their medication within 90 days because of adverse effects or lack of response...
2017: Ontario Health Technology Assessment Series
https://www.readbyqxmd.com/read/28485378/phf8-loss-confers-resistance-to-depression-like-and-anxiety-like-behaviors-in-mice
#18
Ryan M Walsh, Erica Y Shen, Rosemary C Bagot, Anthony Anselmo, Yan Jiang, Behnam Javidfar, Gregory J Wojtkiewicz, Jennifer Cloutier, John W Chen, Ruslan Sadreyev, Eric J Nestler, Schahram Akbarian, Konrad Hochedlinger
PHF8 is a histone demethylase with specificity for repressive modifications. While mutations of PHF8 have been associated with cognitive defects and cleft lip/palate, its role in mammalian development and physiology remains unexplored. Here, we have generated a Phf8 knockout allele in mice to examine the consequences of Phf8 loss for development and behaviour. Phf8 deficient mice neither display obvious developmental defects nor signs of cognitive impairment. However, we report a striking resiliency to stress-induced anxiety- and depression-like behaviour on loss of Phf8...
May 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28456840/rapid-evidence-review-of-the-comparative-effectiveness-harms-and-cost-effectiveness-of-pharmacogenomics-guided-antidepressant-treatment-versus-usual-care-for-major-depressive-disorder
#19
REVIEW
Kimberly Peterson, Eric Dieperink, Johanna Anderson, Erin Boundy, Lauren Ferguson, Mark Helfand
OBJECTIVE: This study aims to conduct an evidence review of the effectiveness, harms, and cost-effectiveness of pharmacogenomics-guided antidepressant treatment for major depressive disorder. METHODS: We searched MEDLINE®, the Cochrane Central Registry of Controlled Trials, and PsycINFO through February 2017. We used prespecified criteria to select studies, abstract data, and rate internal validity and strength of the evidence (PROSPERO number CRD42016036358). RESULTS: We included two randomized trials (RCT), five controlled cohort studies, and six modeling studies of mostly women in their mid-40s with few comorbidities...
June 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28397704/the-influence-of-tsa-and-vpa-on-the-in-vitro-differentiation-of-bone-marrow-mesenchymal-stem-cells-into-neuronal-lineage-cells-gene-expression-studies
#20
Anna Fila-Danilow, Paulina Borkowska, Monika Paul-Samojedny, Malgorzata Kowalczyk, Jan Kowalski
INTRODUCTION: Epigenetic mechanisms regulate the transcription of genes, which can affect the differentiation of MSCs. The aim of the current work is to determine how the histone deacetylase inhibitors TSA and VPA affect the expression of neuronal lineage genes in a culture of rat MSCs (rMSCs). MATERIALS AND METHODS: We analyzed the expression of early neuron marker gene (Tubb3), mature neuron markers genes (Vacht, Th, Htr2a) and the oligodendrocyte progenitor marker gene (GalC)...
March 27, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
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