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Generalized anxiety disorder genetics

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https://www.readbyqxmd.com/read/29331354/specificity-in-etiology-of-subtypes-of-bipolar-disorder-evidence-from-a-swedish-population-based-family-study
#1
Jie Song, Ralf Kuja-Halkola, Arvid Sjölander, Sarah E Bergen, Henrik Larsson, Mikael Landén, Paul Lichtenstein
BACKGROUND: Uncertainty remains whether bipolar I disorder (BDI) and bipolar II disorder (BDII) differ etiologically. We used a population-based family sample to examine the etiological boundaries between BDI and BDII by assessing their familial aggregation/coaggregation and by assessing the coaggregation between them and schizophrenia, depression, attention-deficit/hyperactivity disorder, eating disorders, autism spectrum disorder, substance use disorders, anxiety disorders, and personality disorders...
November 20, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/29321671/preconception-carrier-screening-for-multiple-disorders-evaluation-of-a-screening-offer-in-a-dutch-founder-population
#2
Inge B Mathijssen, Kim C A Holtkamp, Cecile P E Ottenheim, Janneke M C van Eeten-Nijman, Phillis Lakeman, Hanne Meijers-Heijboer, Merel C van Maarle, Lidewij Henneman
Technological developments have enabled carrier screening for multiple disorders. This study evaluated experiences with a preconception carrier screening offer for four recessive disorders in a Dutch founder population. Questionnaires were completed by 182 attendees pretesting and posttesting and by 137 non-attendees. Semistructured interviews were conducted with seven of the eight carrier couples. Attendees were mainly informed about the existence of screening by friends/colleagues (49%) and family members (44%)...
January 10, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29302150/the-forgotten-plague-psychiatric-manifestations-of-ebola-zika-and-emerging-infectious-diseases
#3
REVIEW
Veronica Tucci, Nidal Moukaddam, Jonathan Meadows, Suhal Shah, Sagar C Galwankar, G Bobby Kapur
The media and public health generally focus on the biological and physical ramifications of epidemics. Mental health issues that coincide with emerging diseases and epidemics are rarely examined and sometimes, even eschewed due to cultural considerations. Psychiatric manifestations of various infectious diseases, especially with a focus on Ebola Virus disease (EVD) and Zika Virus, are discussed in this commentary to illustrate the continued need of care after the resolution of the actual illness. Various infectious diseases have associations with mental illness, such as an increased risk of obsessive-compulsive disorders and Tourette syndrome in children with Group B streptococcal infection...
October 2017: Journal of Global Infectious Diseases
https://www.readbyqxmd.com/read/29296085/epilepsy-in-patients-with-autism-links-risks-and-treatment-challenges
#4
REVIEW
Frank Mc Besag
Autism is more common in people with epilepsy, approximately 20%, and epilepsy is more common in people with autism with reported rates of approximately 20%. However, these figures are likely to be affected by the current broader criteria for autism spectrum disorder (ASD), which have contributed to an increased prevalence of autism, with the result that the rate for ASD in epilepsy is likely to be higher and the figure for epilepsy in ASD is likely to be lower. Some evidence suggests that there are two peaks of epilepsy onset in autism, in infancy and adolescence...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29280190/paediatricians-expectations-and-perspectives-regarding-genetic-testing-for-children-with-developmental-disorders
#5
Isabelle Tremblay, Anne-Marie Laberge, Dominique Cousineau, Lionel Carmant, Anita Rowan, Annie Janvier
AIM: Investigate paediatricians' expectations and perspectives of genetic testing for children with developmental disorders. METHODS: Paediatricians working in a developmental clinic were surveyed each time they ordered a chromosomal microarray (CMA) for a child with developmental disorders. Clinical charts were reviewed. Results were analysed using mixed methodology. RESULTS: Ninety-seven % (73/76) of surveys were completed. Pediatricians reported that 36% of parents had difficulties understanding genetic testing and that 40% seemed anxious...
December 27, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/29239291/the-impact-of-schizophrenia-and-mood-disorder-risk-alleles-on-emotional-problems-investigating-change-from-childhood-to-middle-age
#6
Lucy Riglin, Stephan Collishaw, Alexander Richards, Ajay K Thapar, Frances Rice, Barbara Maughan, Michael C O'Donovan, Anita Thapar
BACKGROUND: Previous studies find that both schizophrenia and mood disorder risk alleles contribute to adult depression and anxiety. Emotional problems (depression or anxiety) begin in childhood and show strong continuities into adult life; this suggests that symptoms are the manifestation of the same underlying liability across different ages. However, other findings suggest that there are developmental differences in the etiology of emotional problems at different ages. To our knowledge, no study has prospectively examined the impact of psychiatric risk alleles on emotional problems at different ages in the same individuals...
December 14, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/29225330/huntingtin-gene-repeat-size-variations-affect-risk-of-lifetime-depression
#7
REVIEW
Sarah L Gardiner, Martine J van Belzen, Merel W Boogaard, Willeke M C van Roon-Mom, Maarten P Rozing, Albert M van Hemert, Johannes H Smit, Aartjan T F Beekman, Gerard van Grootheest, Robert A Schoevers, Richard C Oude Voshaar, Raymund A C Roos, Hannie C Comijs, Brenda W J H Penninx, Roos C van der Mast, N Ahmad Aziz
Huntington disease (HD) is a severe neuropsychiatric disorder caused by a cytosine-adenine-guanine (CAG) repeat expansion in the HTT gene. Although HD is frequently complicated by depression, it is still unknown to what extent common HTT CAG repeat size variations in the normal range could affect depression risk in the general population. Using binary logistic regression, we assessed the association between HTT CAG repeat size and depression risk in two well-characterized Dutch cohorts─the Netherlands Study of Depression and Anxiety and the Netherlands Study of Depression in Older Persons─including 2165 depressed and 1058 non-depressed persons...
December 11, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/29072781/diagnostic-and-genetic-overlap-of-three-common-mental-disorders-in-structured-interviews-and-health-registries
#8
F A Torvik, E Ystrom, K Gustavson, T H Rosenström, J G Bramness, N Gillespie, S H Aggen, K S Kendler, T Reichborn-Kjennerud
OBJECTIVE: To investigate whether diagnostic data from structured interviews, primary care and specialist care registries on major depressive disorder (MDD), anxiety disorders (AD) and alcohol use disorder (AUD) identify the same individuals, yield comparable comorbidity estimates and reflect the same genetic influences. METHODS: Registry data from primary and specialist care were available for 11 727 twins and diagnostic interview data for 2271 of these. We used logistic regression analyses and biometric modelling to investigate the overlap between the data sources...
January 2018: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/29033027/anhedonia-following-early-life-adversity-involves-aberrant-interaction-of-reward-and-anxiety-circuits-and-is-reversed-by-partial-silencing-of-amygdala-corticotropin-releasing-hormone-gene
#9
Jessica L Bolton, Jenny Molet, Limor Regev, Yuncai Chen, Neggy Rismanchi, Elizabeth Haddad, Derek Z Yang, Andre Obenaus, Tallie Z Baram
BACKGROUND: Anhedonia, the diminished ability to experience pleasure, is an important dimensional entity linked to depression, schizophrenia, and other emotional disorders, but its origins and mechanisms are poorly understood. We have previously identified anhedonia, manifest as decreased sucrose preference and social play, in adolescent male rats that experienced chronic early-life adversity/stress (CES). Here we probed the molecular, cellular, and circuit processes underlying CES-induced anhedonia and tested them mechanistically...
January 15, 2018: Biological Psychiatry
https://www.readbyqxmd.com/read/28949337/investigating-the-genetic-underpinnings-of-early-life-irritability
#10
L Riglin, O Eyre, M Cooper, S Collishaw, J Martin, K Langley, E Leibenluft, A Stringaris, A K Thapar, B Maughan, M C O'Donovan, A Thapar
Severe irritability is one of the commonest reasons prompting referral to mental health services. It is frequently seen in neurodevelopmental disorders that manifest early in development, especially attention-deficit/hyperactivity disorder (ADHD). However, irritability can also be conceptualized as a mood problem because of its links with anxiety/depressive disorders; notably DSM-5 currently classifies severe, childhood-onset irritability as a mood disorder. Investigations into the genetic nature of irritability are lacking although twin studies suggest it shares genetic risks with both ADHD and depression...
September 26, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28923721/evidence-of-sexual-dimorphism-of-htr1b-gene-on-major-adult-adhd-comorbidities
#11
Diana Müller, Eugenio H Grevet, Alana C Panzenhagen, Renata B Cupertino, Bruna S da Silva, Djenifer B Kappel, Nina R Mota, Paula Blaya-Rocha, Stefania P Teche, Eduardo S Vitola, Luis A Rohde, Verônica Contini, Diego L Rovaris, Jaqueline B Schuch, Claiton H D Bau
Attention-deficit/hyperactivity disorder (ADHD) is a very common psychiatric disorder across the life cycle and frequently presents comorbidities. Since ADHD is highly heritable, several studies have focused in the underlying genetic factors involved in its etiology. One of the major challenges in this search is the phenotypic heterogeneity, which could be partly attributable to the sexual dimorphism frequently seen in psychiatric disorders. Taking into account the well-known sexual dimorphic effect observed in serotonergic system characteristics, we differentially tested the influence of HTR1B SNPs (rs11568817, rs130058, rs6296 and rs13212041) on ADHD susceptibility and on its major comorbidities according to sex...
December 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28902457/the-role-of-clock-gene-in-psychiatric-disorders-evidence-from-human-and-animal-research
#12
REVIEW
Jaqueline B Schuch, Julia P Genro, Clarissa R Bastos, Gabriele Ghisleni, Luciana Tovo-Rodrigues
The circadian clock system drives daily rhythms in physiology, metabolism, and behavior in mammals. Molecular mechanisms of this system consist of multiple clock genes, with Circadian Locomotor Output Cycles Kaput (CLOCK) as a core member that plays an important role in a wide range of behaviors. Alterations in the CLOCK gene are associated with common psychiatric disorders as well as with circadian disturbances comorbidities. This review addresses animal, molecular, and genetic studies evaluating the role of the CLOCK gene on many psychiatric conditions, namely autism spectrum disorder, schizophrenia, attention-deficit/hyperactivity disorder, major depressive disorder, bipolar disorder, anxiety disorder, and substance use disorder...
September 13, 2017: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
https://www.readbyqxmd.com/read/28867940/genetics-of-generalized-anxiety-disorder-and-related-traits
#13
Michael G Gottschalk, Katharina Domschke
This review serves as a systematic guide to the genetics of generalized anxiety disorder (GAD) and further focuses on anxiety-relevant endophenotypes, such as pathological worry fear of uncertainty, and neuroticism. We inspect clinical genetic evidence for the familialityl heritability of GAD and cross-disorder phenotypes based on family and twin studies. Recent advances of linkage studies, genome-wide association studies, and candidate gene studies (eg, 5-HTT, 5-HT1A, MAOA, BDNF) are outlined. Functional and structural neuroimaging and neurophysiological readouts relating to peripheral stress markers and psychophysiology are further integrated, building a multilevel disease framework...
June 2017: Dialogues in Clinical Neuroscience
https://www.readbyqxmd.com/read/28867939/biological-markers-of-generalized-anxiety-disorder
#14
Eduard Maron, David Nutt
Generalized anxiety disorder (GAD) is a prevalent and highly disabling mental health condition; however, there is still much to learn with regard to pertinent biomarkers, as well as diagnosis, made more difficult by the marked and common overlap of GAD with affective and anxiety disorders. Recently, intensive research efforts have focused on GAD, applying neuroimaging, genetic, and blood-based approaches toward discovery of pathogenetic and treatment-related biomarkers. In this paper, we review the large amount of available data, and we focus in particular on evidence from neuroimaging, genetic, and neurochemical measurements in GAD in order to better understand potential biomarkers involved in its etiology and treatment...
June 2017: Dialogues in Clinical Neuroscience
https://www.readbyqxmd.com/read/28846187/increased-fear-learning-spatial-learning-as-well-as-neophobia-in-rgs2-mice
#15
A Raab, S Popp, K-P Lesch, M J Lohse, M Fischer, J Deckert, L Hommers
Anxiety disorders result from a complex interplay of genetic and environmental factors such as stress. On the level of cellular signaling, regulator of G protein signaling 2 (Rgs2) has been implicated in human and rodent anxiety. However, there is limited knowledge about the role of Rgs2 in fear learning and reactivity to stress. In the present study, Rgs2(-/-) mice showed increased fear learning, male mice displayed increased contextual and cued fear learning, while females showed selectively enhanced cued fear learning...
August 28, 2017: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/28831672/update-on-mental-health-of-infants-and-children-of-parents-affected-with-mental-health-issues
#16
REVIEW
Gisèle Apter, Anne Bobin, Marie-Camille Genet, Maya Gratier, Emmanuel Devouche
This paper highlights the most recent publications, in the field of psychiatry, on offspring of patients with psychiatric illnesses such as schizophrenia and bipolar disorder, and then summarizes what we know about the progeny of adults with mood disorders, the most prevalent of parental disorders. Studies examining personality disorders and contextual factors such as stress and trauma are examined with a focus on the crucial question of development and attachment status in children. Findings converge to reveal that offspring of parents (generally mothers) with most major psychiatric disorders present a higher risk for all mental disorders, and a wide range of disorders are also found in children, adolescent, and finally adult offspring of mothers with mood and anxiety disorders...
August 23, 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28812274/oxytocin-and-anxiety-disorders
#17
Michael G Gottschalk, Katharina Domschke
In the present chapter, we review the literature focusing on oxytocin (OT)-centered research in anxiety spectrum conditions, comprising separation anxiety disorder, specific phobias, social anxiety disorder (SAD), panic disorder, generalized anxiety disorder, and anxiety-related endophenotypes (e.g., trust behavior, behavioral inhibition, neuroticism, and state/trait anxiety). OT receptor gene (OXTR) polymorphisms have been implicated in gene-environment interactions with attachment style and childhood maltreatment and to influence clinical outcomes, including SAD intensity and limbic responsiveness...
August 16, 2017: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/28804700/abridged-version-of-the-awmf-guideline-for-the-medical-clinical-diagnostics-of-indoor-mould-exposure-s2k-guideline-of-the-german-society-of-hygiene-environmental-medicine-and-preventive-medicine-ghup-in-collaboration-with-the-german-association-of-allergists
#18
Gerhard A Wiesmüller, Birger Heinzow, Ute Aurbach, Karl-Christian Bergmann, Albrecht Bufe, Walter Buzina, Oliver A Cornely, Steffen Engelhart, Guido Fischer, Thomas Gabrio, Werner Heinz, Caroline E W Herr, Jörg Kleine-Tebbe, Ludger Klimek, Martin Köberle, Herbert Lichtnecker, Thomas Lob-Corzilius, Rolf Merget, Norbert Mülleneisen, Dennis Nowak, Uta Rabe, Monika Raulf, Hans Peter Seidl, Jens-Oliver Steiß, Regine Szewszyk, Peter Thomas, Kerttu Valtanen, Julia Hurraß
This article is an abridged version of the AWMF mould guideline "Medical clinical diagnostics of indoor mould exposure" presented in April 2016 by the German Society of Hygiene, Environmental Medicine and Preventive Medicine (Gesellschaft für Hygiene, Umweltmedizin und Präventivmedizin, GHUP), in collaboration with the above-mentioned scientific medical societies, German and Austrian societies, medical associations and experts. Indoor mould growth is a potential health risk, even if a quantitative and/or causal relationship between the occurrence of individual mould species and health problems has yet to be established...
2017: Allergo Journal International
https://www.readbyqxmd.com/read/28802919/nonmotor-signs-in-genetic-forms-of-parkinson-s-disease
#19
Meike Kasten, Connie Marras, Christine Klein
Although only a minority (i.e., ~5%) of Parkinson's disease (PD) cases is due to well-defined genetic causes, important clues about the common, "idiopathic" PD (iPD) can be garnered from monogenic model diseases. Nonmotor signs (NMS) are also present in monogenic PD and reviewed in this chapter for the confirmed PD genes SNCA, LRRK2, VPS35, Parkin, PINK1, DJ-1, and the risk factor gene GBA. Within the context of the MDSGene database (www.mdsgene.org), we performed a systematic literature search and extracted information on cognitive decline, depression, psychotic signs and symptoms, autonomic signs and symptoms, anxiety, sleep disorder, and olfactory impairment...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28769796/s-47445-produces-antidepressant-and-anxiolytic-like-effects-through-neurogenesis-dependent-and-independent-mechanisms
#20
Indira Mendez-David, Jean-Philippe Guilloux, Mariusz Papp, Laurent Tritschler, Elisabeth Mocaer, Alain M Gardier, Sylvie Bretin, Denis J David
Glutamatergic dysfunctions are observed in the pathophysiology of depression. The glutamatergic synapse as well as the AMPA receptor's (AMPAR) activation may represent new potential targets for therapeutic intervention in the context of major depressive disorders. S 47445 is a novel AMPARs positive allosteric modulator (AMPA-PAM) possessing procognitive, neurotrophic properties and enhancing synaptic plasticity. Here, we investigated the antidepressant/anxiolytic-like effects of S 47445 in a mouse model of anxiety/depression based on chronic corticosterone administration (CORT) and in the Chronic Mild Stress (CMS) model in rats...
2017: Frontiers in Pharmacology
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