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Mood dysregulation disorder

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https://www.readbyqxmd.com/read/29158579/rare-susceptibility-variants-for-bipolar-disorder-suggest-a-role-for-g-protein-coupled-receptors
#1
C Cruceanu, J-F Schmouth, S G Torres-Platas, J P Lopez, A Ambalavanan, E Darcq, F Gross, B Breton, D Spiegelman, D Rochefort, P Hince, J M Petite, J Gauthier, R G Lafrenière, P A Dion, C M Greenwood, B L Kieffer, M Alda, G Turecki, G A Rouleau
Bipolar disorder (BD) is a prevalent mood disorder that tends to cluster in families. Despite high heritability estimates, few genetic susceptibility factors have been identified over decades of genetic research. One possible interpretation for the shortcomings of previous studies to detect causative genes is that BD is caused by highly penetrant rare variants in many genes. We explored this hypothesis by sequencing the exomes of affected individuals from 40 well-characterized multiplex families. We identified rare variants segregating with affected status in many interesting genes, and found an enrichment of deleterious variants in G protein-coupled receptor (GPCR) family genes, which are important drug targets...
November 21, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29141007/escitalopram-and-nht-normalized-stress-induced-anhedonia-and-molecular-neuroadaptations-in-a-mouse-model-of-depression
#2
Or Burstein, Motty Franko, Eyal Gale, Assaf Handelsman, Segev Barak, Shai Motsan, Alon Shamir, Roni Toledano, Omri Simhon, Yafit Hirshler, Gang Chen, Ravid Doron
Anhedonia is defined as a diminished ability to obtain pleasure from otherwise positive stimuli. Anxiety and mood disorders have been previously associated with dysregulation of the reward system, with anhedonia as a core element of major depressive disorder (MDD). The aim of the present study was to investigate whether stress-induced anhedonia could be prevented by treatments with escitalopram or novel herbal treatment (NHT) in an animal model of depression. Unpredictable chronic mild stress (UCMS) was administered for 4 weeks on ICR outbred mice...
2017: PloS One
https://www.readbyqxmd.com/read/29107201/alexithymia-and-problematic-alcohol-use-a-critical-update
#3
REVIEW
K E Cruise, R Becerra
There has been a substantial growth in empirical research aimed at examining the co-occurrence of alexithymia and problematic alcohol use and alcohol use disorder (AUD) since Thorberg, Young, Sullivan, and Lyvers (2009) original review article. The objective of the present paper is therefore to provide a critical update review of research on alexithymia and problematic alcohol use published since 2009. A systematic search was conducted through PsychINFO, Medline, and ProQuest databases to obtain relevant literature published between 2009 and 2016...
October 10, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/29102801/depression-and-sterile-inflammation-essential-role-of-danger-associated-molecular-patterns
#4
Tina C Franklin, Chelsea Xu, Ronald S Duman
Stress is a major risk factor for psychiatric disorder including major depressive disorder (MDD) and can induce inflammation, which is known to be dysregulated in depression. Several clinical and pre-clinical studies have demonstrated a strong association between depressive symptoms and the expression of factors that increase inflammation. Conversely, administration of anti-inflammatory agents has been shown to ameliorate depressive symptoms, demonstrating the importance of inflammation as a mediator of depression...
November 2, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29091022/evolution-of-circuits-regulating-pleasure-and-happiness-with-the-habenula-in-control
#5
Anton J M Loonen, Svetlana A Ivanova
The habenula, which in humans is a small nuclear complex within the epithalamus, plays an essential role in regulating the intensity of reward-seeking and adversity-avoiding behavior in all vertebrate ancestors by regulating the activity of ascending midbrain monoaminergic tracts. In lampreys, considered to possess a brain comparable to humans' earliest evolutionary vertebrate ancestor, the activity of the lateral habenula is controlled by a subset of glutamatergic neurons of the animal's pallidum (habenula-projecting globus pallidus) that inhibit reward-seeking behavior when this conduct is not successful enough...
November 1, 2017: CNS Spectrums
https://www.readbyqxmd.com/read/29083031/practitioner-review-definition-recognition-and-treatment-challenges-of-irritability-in-young-people
#6
REVIEW
Argyris Stringaris, Pablo Vidal-Ribas, Melissa A Brotman, Ellen Leibenluft
BACKGROUND: Irritability is one of the most common reasons for referral to child and adolescent mental health services and is the main characteristic of the new diagnosis of disruptive mood dysregulation disorder (DMDD). However, the recognition and management of irritability presents a major challenge in clinical practice and may be partly responsible for the dramatic increase in antipsychotic prescribing in recent years. METHODS: In this review, we provide up-to-date information on the definition and mechanisms underlying irritability, and its assessment in clinical practice...
October 30, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/29081722/cognitive-behavioral-therapy-for-a-9-year-old-girl-with-disruptive-mood-dysregulation-disorder
#7
Megan E Tudor, Karim Ibrahim, Emilie Bertschinger, Justyna Piasecka, Denis G Sukhodolsky
Disruptive mood dysregulation disorder (DMDD) is a relatively new diagnosis in the field of childhood onset disorders. Characterized by both behavior and mood disruption, DMDD is a purportedly unique clinical presentation with few relevant treatment studies to date. The current case study presents the application of cognitive-behavioral therapy (CBT) for anger and aggression in a 9-year-old girl with DMDD, co-occurring attention deficit hyperactivity disorder (ADHD), and a history of unspecified anxiety disorder...
December 2016: Clinical Case Studies
https://www.readbyqxmd.com/read/29077652/self-harm-affective-traits-and-psychosocial-functioning-in-adults-with-depressive-and-bipolar-disorders
#8
Marc J Weintraub, Margaret M Van de Loo, Michael J Gitlin, David J Miklowitz
Self-harm refers to the purposeful destruction of bodily tissue without suicidal intention and for purposes that are not socially sanctioned. Little is known about the associations between a history of self-harm, mood symptoms, and functioning in adults with different types of mood disorders. Lifetime histories of self-harm, current mood symptoms, global functioning, and affective traits were collected on 142 adults with mood disorders. The prevalence of lifetime self-harm was higher in patients with bipolar disorder compared with patients with a unipolar depressive disorder...
November 2017: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/29075574/perinatal-western-type-diet-and-associated-gestational-weight-gain-alter-postpartum-maternal-mood
#9
Jessica L Bolton, Melanie G Wiley, Bailey Ryan, Samantha Truong, Melva Strait, Dana Creighton Baker, Nancy Y Yang, Olga Ilkayeva, Thomas M O'Connell, Shelley W Wroth, Cristina L Sánchez, Geeta Swamy, Christopher Newgard, Cynthia Kuhn, Staci D Bilbo, Leigh Ann Simmons
INTRODUCTION: The role of perinatal diet in postpartum maternal mood disorders, including depression and anxiety, remains unclear. We investigated whether perinatal consumption of a Western-type diet (high in fat and branched-chain amino acids [BCAA]) and associated gestational weight gain (GWG) cause serotonin dysregulation in the central nervous system (CNS), resulting in postpartum depression and anxiety (PPD/A). METHODS: Mouse dams were fed one of four diets (high-fat/high BCAA, low-fat/high BCAA, high-fat, and low-fat) prior to mating and throughout gestation and lactation...
October 2017: Brain and Behavior
https://www.readbyqxmd.com/read/29067863/prevalence-rate-and-course-of-symptoms-of-disruptive-mood-dysregulation-disorder-dmdd
#10
Katharina Grau, Paul L Plener, Sarah Hohmann, Jörg M Fegert, Elmar Brähler, Joana Straub
OBJECTIVE: According to DSM-5, Disruptive Mood Dysregulation Disorder (DMDD) is characterized by chronic temper outbursts and irritable moods. So far, little is known about its prevalence rate, course and influence on individual well-being. We assessed the prevalence rates of DMDD symptoms during adulthood and primary school age - the latter retrospectively - and studied their relationship with psychiatric disorders and socioeconomic variables. METHODS: A total of 2,413 subjects, aged 18-94 years, participated in this population-based, representative study based on self-reports...
October 25, 2017: Zeitschrift Für Kinder- und Jugendpsychiatrie und Psychotherapie
https://www.readbyqxmd.com/read/29057204/shift-work-disrupted-circadian-rhythms-and-sleep-implications-for-health-and-well-being
#11
Stephen M James, Kimberly A Honn, Shobhan Gaddameedhi, Hans P A Van Dongen
PURPOSE OF REVIEW: Our 24/7 society is dependent on shift work, despite mounting evidence for negative health outcomes from sleep displacement due to shift work. This paper reviews short- and long-term health consequences of sleep displacement and circadian misalignment due to shift work. RECENT FINDINGS: We focus on four broad health domains: metabolic health; risk of cancer; cardiovascular health; and mental health. Circadian misalignment affects these domains by inducing sleep deficiency, sympathovagal and hormonal imbalance, inflammation, impaired glucose metabolism, and dysregulated cell cycles...
June 2017: Current Sleep Medicine Reports
https://www.readbyqxmd.com/read/29051523/emotion-regulating-attentional-control-abnormalities-in-major-depressive-disorder-an-event-related-potential-study
#12
Bin Hu, Juan Rao, Xiaowei Li, Tong Cao, Jianxiu Li, Dennis Majoe, Jürg Gutknecht
Major depressive disorders (MDD) exhibit cognitive dysfunction with respect to attention. The deficiencies in cognitive control of emotional information are associated with MDD as compared to healthy controls (HC). However, the brain mechanism underlying emotion that influences the attentional control in MDD necessitates further research. The present study explores the emotion-regulated cognitive competence in MDD at a dynamic attentional stage. Event-Related Potentials (ERPs) were recorded from 35 clinical MDD outpatients and matched HCs by applying a modified affective priming dot-probe paradigm, which consisted of various emotional facial expression pairs...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29051086/depression-subtyping-based-on-evolutionary-psychiatry-proximate-mechanisms-and-ultimate-functions
#13
REVIEW
Markus J Rantala, Severi Luoto, Indrikis Krams, Hasse Karlsson
Major depressive disorder constitutes one of the leading causes of disability worldwide. However, it is not a unitary disease-it is a heterogeneous syndrome, with patients differing remarkably in symptom profile, pathophysiology and treatment responsiveness. Previous attempts to subtype major depressive disorder have showed limited clinical applicability. We present a classification of major depressive disorder episodes based on the proximate mechanisms that led to the original mood change that caused the depressive episode...
October 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29049438/mood-instability-and-reward-dysregulation-a-neurocomputational-model-of-bipolar-disorder
#14
Liam Mason, Eran Eldar, Robb B Rutledge
No abstract text is available yet for this article.
October 11, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/29049292/rejection-sensitivity-as-a-vulnerability-marker-for-depressive-symptom-deterioration-in-men
#15
Jannika De Rubeis, Ricardo G Lugo, Michael Witthöft, Stefan Sütterlin, Markus R Pawelzik, Claus Vögele
Consistent across time and cultures, men and male adolescents older than 14 years of age appear underrepresented in mood disorders, and are far less likely than women to seek psychological help. The much higher rate of suicide amongst males suggests that depression in men might be underreported. One of the core human motives is to seek acceptance by others and avoid rejection. Rejection Sensitivity (RS) has been conceptualized as the cognitive-affective processing disposition to anxiously expect, readily perceive, and intensely respond to cues of rejection in the behavior of others...
2017: PloS One
https://www.readbyqxmd.com/read/29043085/a-pilot-open-series-of-lamotrigine-in-dbt-treated-eating-disorders-characterized-by-significant-affective-dysregulation-and-poor-impulse-control
#16
Mary Ellen Trunko, Terry A Schwartz, Laura A Berner, Anne Cusack, Tiffany Nakamura, Ursula F Bailer, Joanna Y Chen, Walter H Kaye
BACKGROUND: There is little effective psychopharmacological treatment for individuals with eating disorders who struggle with pervasive, severe affective and behavioral dysregulation. METHODS: This pilot open series evaluated lamotrigine, a mood stabilizer, in the treatment of patients with eating disorders who did not respond adequately to antidepressant medications. Nine women with anorexia nervosa- or bulimia nervosa-spectrum eating disorders in partial hospital or intensive outpatient dialectical behavior therapy (DBT)-based eating disorder treatment took lamotrigine for 147 ± 79 days (mean final dose = 161...
2017: Borderline Personality Disorder and Emotion Dysregulation
https://www.readbyqxmd.com/read/29018160/dopamine-dysregulation-syndrome-in-parkinson-s-disease-a-systematic-review-of-published-cases
#17
Nicola Warren, Cullen O'Gorman, Alexander Lehn, Dan Siskind
OBJECTIVES: Dopamine dysregulation syndrome (DDS) is an uncommon complication of the treatment of Parkinson's disease, characterised by addictive behaviour and excessive use of dopaminergic medication. DDS may frequently go unrecognised or misdiagnosed. We aimed to clarify current understanding of presentation, risk factors, comorbidities and management of DDS. METHODS: Case reports were identified through a systematic search of databases (PubMed, Embase) with the following terms: dopaminergic dysregulation syndrome, hedonistic homeostatic dysregulation, dopamine/levodopa addiction...
October 10, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28992428/inflammatory-mediators-in-mood-disorders-therapeutic-opportunities
#18
Madeline L Pfau, Caroline Ménard, Scott J Russo
Mood disorders such as depression are among the most prevalent psychiatric disorders in the United States, but they are inadequately treated in a substantial proportion of patients. Accordingly, neuropsychiatric research has pivoted from investigation of monoaminergic mechanisms to exploration of novel mediators, including the role of inflammatory processes. Subsets of mood disorder patients exhibit immune-related abnormalities, including elevated levels of proinflammatory cytokines, monocytes, and neutrophils in the peripheral circulation; dysregulation of neuroglia and blood-brain barrier function; and disruption of gut microbiota...
October 6, 2017: Annual Review of Pharmacology and Toxicology
https://www.readbyqxmd.com/read/28957786/sleep-quality-and-emotional-reactivity-cluster-in-bipolar-disorders-and-impact-on-functioning
#19
B Etain, O Godin, C Boudebesse, V Aubin, J M Azorin, F Bellivier, T Bougerol, P Courtet, S Gard, J P Kahn, C Passerieux, M Leboyer, C Henry
OBJECTIVE: Bipolar disorders (BD) are characterized by sleep disturbances and emotional dysregulation both during acute episodes and remission periods. We hypothesized that sleep quality (SQ) and emotional reactivity (ER) defined clusters of patients with no or abnormal SQ and ER and we studied the association with functioning. METHOD: We performed a bi-dimensional cluster analysis using SQ and ER measures in a sample of 533 outpatients patients with BD (in remission or with subsyndromal mood symptoms)...
September 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28942805/randomized-clinical-trial-of-dialectical-behavior-therapy-for-preadolescent-children-with-disruptive-mood-dysregulation-disorder-feasibility-and-outcomes
#20
Francheska Perepletchikova, Donald Nathanson, Seth R Axelrod, Caitlin Merrill, Amy Walker, Meredith Grossman, James Rebeta, Lawrence Scahill, Joan Kaufman, Barbara Flye, Elizabeth Mauer, John Walkup
OBJECTIVE: Persistent irritability and behavior outbursts in disruptive mood dysregulation disorder (DMDD) are associated with severe impairment in childhood and with negative adolescent and adult outcomes. There are no empirically established treatments for DMDD. This study examined the feasibility and preliminary efficacy of dialectical behavior therapy adapted for preadolescent children (DBT-C) with DMDD. METHOD: Children 7 to 12 years old with DMDD (N = 43) were randomly assigned 1:1 to DBT-C or treatment as usual (TAU)...
October 2017: Journal of the American Academy of Child and Adolescent Psychiatry
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