journal
MENU ▼
Read by QxMD icon Read
search

Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology

journal
https://www.readbyqxmd.com/read/29052618/a-role-for-prefrontal-cortical-nmda-receptors-in-murine-alcohol-heightened-aggression
#1
Emily L Newman, Miho Terunuma, Tiffany Wang, Nishani Hewage, Matthew B Bicakci, Stephen J Moss, Joseph F DeBold, Klaus A Miczek
Alcohol is associated with nearly half of all violent crimes committed in the United States; yet, a potential neural basis for this type of pathological aggression remains elusive. Alcohol may act on NMDA receptors (NMDARs) within cortical circuits to impede processing and to promote aggression. Here, male mice were characterized as alcohol-heightened (AHAs) or alcohol non-heightened aggressors (ANAs) during resident-intruder confrontations after self-administering 1.0 g/kg alcohol (6% w/v) or water. Alcohol produced a pathological-like pattern of aggression in AHAs; these mice shifted their bites to more vulnerable locations on the body of a submissive animal, including the anterior back and ventrum after consuming alcohol...
October 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29052617/adhd-smoking-withdrawal-and-inhibitory-control-results-of-a-neuroimaging-study-with-methylphenidate-challenge
#2
Maggie M Sweitzer, Scott H Kollins, Rachel V Kozink, Matt Hallyburton, Joseph English, Merideth A Addicott, Jason A Oliver, F Joseph McClernon
Smoking withdrawal negatively impacts inhibitory control, and these effects are greater for smokers with pre-existing attention problems, such as attention deficit/hyperactivity disorder (ADHD). The current study preliminarily evaluated changes in inhibitory control-related behavior and brain activation during smoking withdrawal among smokers with ADHD. Moreover, we investigated the role of catecholamine transmission in these changes by examining effects of 40 mg methylphenidate (MPH) administration. Adult daily smokers with (n=17) and without (n=20) ADHD completed fMRI scanning under each of three conditions: (a) smoking as usual+placebo; (b) 24 hr smoking abstinence+placebo and (c) 24 hr smoking abstinence+MPH...
October 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29052616/pregenual-anterior-cingulate-dysfunction-associated-with-depression-in-ocd-an-integrated-multimodal-fmri-1-h-mrs-study
#3
Reza Tadayonnejad, Rangaprakash Deshpande, Olusola Ajilore, Teena Moody, Francesca Morfini, Ronald Ly, Joseph O'Neill, Jamie D Feusner
Depression is a commonly-occurring symptom in obsessive-compulsive disorder (OCD), and is associated with worse functional impairment, poorer quality of life, and poorer treatment response. Understanding the underlying neurochemical and connectivity-based brain mechanisms of this important symptom domain in OCD is necessary for development of novel, more globally effective treatments. To investigate biopsychological mechanisms of comorbid depression in OCD, we examined effective connectivity and neurochemical signatures in the pregenual anterior cingulate cortex (pACC), a structure known to be involved in both OCD and depression...
October 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29052615/effects-of-alcohol-abuse-on-proliferating-cells-stem-progenitor-cells-and-immature-neurons-in-the-adult-human-hippocampus
#4
Tara Wardi Le Maître, Gopalakrishnan Dhanabalan, Nenad Bogdanovic, Kanar Alkass, Henrik Druid
In animal studies, impaired adult hippocampal neurogenesis is associated with behavioral pathologies including addiction to alcohol. We hypothesize that alcohol abuse may have a detrimental effect on the neurogenic pool of the dentate gyrus in the human hippocampus. In this study we investigate whether alcohol abuse affects the number of proliferating cells, stem/progenitor cells and immature neurons in samples from postmortem human hippocampus. The specimens were isolated from deceased donors with an on-going alcohol abuse, and from controls with no alcohol overconsumption...
October 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29052614/narp-mediates-antidepressant-like-effects-of-electroconvulsive-seizures
#5
Andrew D Chang, Punit V Vaidya, Edward P Retzbach, Sunho J Chung, Urian Kim, Kathryn Baselice, Kristen Maynard, Alec Stepanian, Melissa Staley, Lan Xiao, Ashley Blouin, Sungho Han, JongAh Lee, Paul F Worley, Kellie L Tamashiro, Barbara L Hempstead, Keri Martinowich, Mary Ann Wilson, Jay M Baraban, Irving M Reti
Growing recognition of persistent cognitive defects associated with electroconvulsive therapy (ECT), a highly effective and commonly used antidepressant treatment, has spurred interest in identifying its mechanism of action to guide development of safer treatment options. However, as repeated seizure activity elicits a bewildering array of electrophysiological and biochemical effects, this goal has remained elusive. We have examined whether deletion of Narp, an immediate early gene induced by electroconvulsive seizures (ECS), blocks its antidepressant efficacy...
October 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29052613/dynorphin-counteracts-orexin-in-the-paraventricular-nucleus-of-the-thalamus-cellular-and-behavioral-evidence
#6
Alessandra Matzeu, Marsida Kallupi, Olivier George, Paul Schweitzer, Rémi Martin-Fardon
The orexin (Orx) system plays a critical role in drug addiction and reward-related behaviors. The dynorphin (Dyn) system promotes depressive-like behavior and plays a key role in the aversive effects of stress. Orx and Dyn are co-released and have opposing functions in reward and motivation in the ventral tegmental area (VTA). Previous studies suggested that OrxA transmission in the posterior paraventricular nucleus of the thalamus (pPVT) participates in cocaine-seeking behavior. This study determined whether Orx and Dyn interact in the pPVT...
October 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29039414/-the-limbic-system-in-youth-depression-brain-structural-and-functional-alterations-in-adolescent-in-patients-with-severe-depression
#7
Ronny Redlich, Nils Opel, Christian Bürger, Katharina Dohm, Dominik Grotegerd, Katharina Förster, Dario Zaremba, Susanne Meinert, Jonathan Repple, Verena Enneking, Elisabeth Leehr, Joshua Böhnlein, Lena Winters, Neele Froböse, Sophia Thrun, Julia Emtmann, Walter Heindel, Harald Kugel, Volker Arolt, Georg Romer, Christian Postert, Udo Dannlowski
Adolescent-onset Major Depressive Disorder (MDD) is associated with an increased risk of recurrent depressive episodes, suicidal behaviors, and psychiatric morbidity throughout the lifespan. The objective of the present study was to investigate brain structural and functional changes in adolescent patients with MDD. Furthermore, we aimed to clarify the influence of early-life stress on brain function and structure. The study investigated adolescent patients with severe MDD (n=20, mean age=16.0, range=15-18 years) and a control sample of matched healthy adolescents (n=21, mean age= 16...
October 17, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29039413/vta-mtor-signaling-regulates-dopamine-dynamics-cocaine-induced-synaptic-alterations-and-reward
#8
Xiaojie Liu, Yan Li, Laikang Yu, Casey R Vickstrom, Qing-Song Liu
Mechanistic target of rapamycin (mTOR) regulates long-term synaptic plasticity, learning and memory by controlling dendritic protein synthesis. The mTOR inhibitor rapamycin has been shown to attenuate the behavioral effects of drugs of abuse, including cocaine. Using viral vectors to selectively delete mTOR in the ventral tegmental area (VTA) in adult male mTOR(loxP/loxP) mice, we investigated the role of mTOR in regulating neuronal morphology, basal synaptic transmission, dopamine dynamics and cocaine-induced synaptic plasticity and rewarding effects...
October 17, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28816241/combinatorial-psycho-pharmacological-approaches-for-the-treatment-of-abnormal-aggression
#9
Sam A Golden, Aki Takahashi
No abstract text is available yet for this article.
October 11, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28990594/the-gene-encoding-protocadherin-9-pcdh9-a-novel-risk-factor-for-major-depressive-disorder
#10
Xiao Xiao, Fanfan Zheng, Hong Chang, Yina Ma, Yong-Gang Yao, Xiong-Jian Luo, Ming Li
Genomic analyses have identified only a handful of robust risk loci for major depressive disorder (MDD). In addition to the published genome-wide significant genes, it is believed that there are undiscovered 'treasures' underlying the current MDD genome-wide association studies (GWAS) and gene expression datasets, and digging into these data will allow better understanding of the illness and development of new therapeutic approaches. For this purpose, we performed a meta-analytic study combining three MDD GWAS datasets (23andMe, CONVERGE and PGC), then conducted independent replications of significant loci in two additional samples...
October 9, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28990593/riluzole-impairs-cocaine-reinstatement-and-restores-adaptations-in-intrinsic-excitability-and-glt-1-expression
#11
Marian T Sepulveda-Orengo, Kati L Healey, Ronald Kim, Alyson C Auriemma, Jennifer Rojas, Nicholas Woronoff, Rachel Hyppolite, Kathryn J Reissner
Adaptations in glutamate signaling within the brain's reward circuitry are observed following withdrawal from several abused drugs, including cocaine. These include changes in intrinsic cellular excitability, glutamate release, and glutamate uptake. Pharmacological or optogenetic reversal of these adaptations have been shown to reduce measures of cocaine craving and seeking, raising the hypothesis that regulation of glutamatergic signaling represents a viable target for the treatment of substance use disorders...
October 9, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28984295/r-baclofen-reverses-cognitive-deficits-and-improves-social-interactions-in-two-lines-of-16p11-2-deletion-mice
#12
Laura J Stoppel, Tatiana M Kazdoba, Melanie D Schaffler, Anthony R Preza, Arnold Heynen, Jacqueline N Crawley, Mark F Bear
Human chromosome 16p11.2 microdeletion is among the most common gene copy number variations (CNVs) known to confer risk for intellectual disability (ID) and autism spectrum disorder (ASD), and affects an estimated 3 in 10 000 people. Caused by a single copy deletion of ~27 genes, 16p11.2 microdeletion syndrome is characterized by ID, impaired language, communication and socialization skills, and ASD. Studies in animal models where a single copy of the syntenic 16p11.2 region has been deleted have revealed morphological, behavioral, and electrophysiological abnormalities...
October 6, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28984294/perinatal-immune-activation-produces-persistent-sleep-alterations-and-epileptiform-activity-in-male-mice
#13
Galen Missig, Emery L Mokler, James O Robbins, Abigail J Alexander, Christopher J McDougle, William A Carlezon
Increasing evidence suggests a role for inflammation in neuropsychiatric conditions including autism spectrum disorder (ASD). Previous work in rodents has established that immune activation during critical developmental periods can cause phenotypes that reproduce core features of ASD, including decreased social interaction, aberrant communication, and increased repetitive behavior. In humans, ASD is frequently associated with co-morbid medical conditions including sleep disorders, motor hyperactivity, and seizures...
October 6, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28984293/drive-and-reinforcement-circuitry-in-the-brain-origins-neurotransmitters-and-projection-fields
#14
REVIEW
Roy A Wise, Ross A McDevitt
Brain stimulation has identified two central subsets of stimulation sites with motivational relevance. First, there is a large and disperse set of sites where stimulation is reinforcing, increasing the frequency of the responses it follows, and second, a much more restricted set of sites where-along with reinforcement-stimulation also has drive-like effects, instigating feeding, copulation, predation, and other motivated acts in otherwise sated or peaceful animals. From this work a dispersed but synaptically interconnected network of reinforcement circuitry is emerging: it includes afferents to the ventral tegmental area and substantia nigra; the dopamine systems themselves; glutamatergic afferents to the striatum; and one of two dopamine-receptor-expressing efferent pathways of the striatum...
October 6, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28976945/activation-of-nigrostriatal-dopamine-neurons-during-fear-extinction-prevents-the-renewal-of-fear
#15
Courtney A Bouchet, Megan A Miner, Esteban C Loetz, Adam J Rosberg, Holly S Hake, Caroline E Farmer, Mykola Ostrovskyy, Nathan Gray, Benjamin N Greenwood
Manipulations that increase dopamine (DA) signaling can enhance fear extinction, but the circuits involved remain unknown. DA neurons originating in the substantia nigra (SN) projecting to the dorsal striatum (DS) are traditionally viewed in the context of motor behavior, but growing data implicate this nigrostriatal circuit in emotion. Here we investigated the role of nigrostriatal DA in fear extinction. Activation of SN DA neurons with designer Gq-coupled receptors exclusively activated by designer drugs (Gq-DREADD) during fear extinction had no effect on fear extinction acquisition, but enhanced fear extinction memory and blocked the renewal of fear in a novel context; a pattern of data paralleled by cFos expression in the central amygdala...
October 4, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28976944/the-new-news-about-lithium-an-underutilized-treatment-in-the-united-states
#16
Robert M Post
Lithium use for the treatment of mood disorders remains quite low, particularly in the United States compared to some European countries. Mogens Schou pioneered the study of lithium for prophylaxis of the recurrent mood disorder and encouraged its greater use. In an effort to further address the appropriate role of this drug, the multiple assets of lithium beyond its well-know anti-manic effect are reviewed, and a brief summary of its side effects is outlined. It appears that lithium has positive effects in depression and suicide prevention, cognition, and reducing the incidence of dementia...
October 4, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28975925/fkbp5-moderates-the-association-between-antenatal-maternal-depressive-symptoms-and-neonatal-brain-morphology
#17
Changqing Wang, Mojun Shen, Bryan Guillaume, Yap-Seng Chong, Helen Chen, Marielle V Fortier, Michael J Meaney, Anqi Qiu
Antenatal maternal depressive symptoms influence fetal brain development and increase the risk for depression in offspring. Such vulnerability is often moderated by the offspring's genetic variants. This study aimed to examine whether FKBP5, a key regulator of the hypothalamic-pituitary-adrenal (HPA) axis, moderates the association between antenatal maternal depressive symptoms and in utero brain development, using an Asian cohort with 161 mother-offspring dyads. Antenatal maternal depressive symptoms were measured using the Edinburgh Postnatal Depression Scale (EPDS) during the second trimester of pregnancy...
October 3, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28948980/neural-underpinnings-of-cortisol-effects-on-fear-extinction
#18
Christian Josef Merz, Tanja Christina Hamacher-Dang, Rudolf Stark, Oliver Tobias Wolf, Andrea Hermann
Extinction of conditioned fear embodies a crucial mechanism incorporated in exposure therapy. Clinical studies demonstrated that application of the stress hormone cortisol prior to exposure sessions facilitates exposure success, but the underlying neural correlates remain unknown. Context- and stimulus-dependent cortisol effects on extinction learning will be characterized in this study and tested in the extinction and in a new context. Forty healthy men participated in a three-day fear conditioning experiment with fear acquisition in context A (day 1), extinction training in context B (day 2), and recall in context B and a new context C one week later (day 3)...
September 26, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28948979/effort-but-not-reward-sensitivity-is-altered-by-acute-sickness-induced-by-experimental-endotoxemia-in-humans
#19
Amelia Draper, Rebecca M Koch, Jos Wm van der Meer, M Apps, Peter Pickkers, Masud Husain, Marieke E van der Schaaf
Sickness behavior in humans is characterized by low mood and fatigue, which have been suggested to reflect changes in motivation involving reorganization of priorities. However, it is unclear which specific processes underlying motivation are altered. We tested whether bacterial endotoxin E. coli lipopolysaccharide (LPS) affected two dissociable constructs of motivational behavior, ie effort and reward sensitivity. After familiarization with 5 effort levels, participants made a series of accept/reject decisions on whether the stake offered (1, 4, 8, 12 or 15 apples)) was 'worth the effort' (10, 27...
September 26, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28948978/levels-of-cognitive-control-a-functional-magnetic-resonance-imaging-based-test-of-an-rdoc-domain-across-bipolar-disorder-and-schizophrenia
#20
Jason Smucny, Tyler A Lesh, Keith Newton, Tara Niendam, J Daniel Ragland, Cameron S Carter
In recent years, the boundaries of psychopathology as defined by diagnostic categories have been criticized as inadequately 'carving nature at its joints' with respect to the neurobiology of major mental disorders. In 2010 the NIMH launched the Research Domain Criteria (RDoC) framework for understanding mental illnesses as brain circuit disorders that extend beyond DSM-defined diagnoses. In the present study we focus on cognitive dysfunction, a core feature of schizophrenia (SZ) and bipolar disorder (BPD), and use functional magnetic resonance imaging (fMRI) during a cognitive control (CC) task in recent onset patients to test the hypothesis that at a behavioral and underlying neural circuitry level these deficits exist on a continuum (as opposed to showing categorical differences) across the two disorders...
September 26, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
journal
journal
30084
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"