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https://www.readbyqxmd.com/read/28734177/manual-morphometry-of-hippocampus-and-amygdala-in-adults-with-attention-deficit-hyperactivity-disorder
#1
Kathrin Nickel, Ludger Tebartz van Elst, Evgeniy Perlov, Renate Jitten-Schachenmeier, Daniel Beier, Dominique Endres, Peter Goll, Alexandra Philipsen, Simon Maier
Previous studies have pointed to the involvement of limbic structures in the genesis of attention deficit hyperactivity disorder (ADHD). The present researchers manually segmented magnetic resonance images of 30 individuals with ADHD and 30 individually matched controls, focusing on amygdala and hippocampus volumes. Neither hippocampus nor amygdala volume differed significantly between individuals with and without ADHD. However, ADHD patients with higher hyperactivity scores had significantly smaller left amygdala volumes...
July 14, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28730282/blockade-of-%C3%AE-2-adrenergic-receptors-in-prelimbic-cortex-impact-on-cocaine-self-administration-in-adult-spontaneously-hypertensive-rats-following-adolescent-atomoxetine-treatment
#2
Britahny M Baskin, Bríd Á Nic Dhonnchadha, Linda P Dwoskin, Kathleen M Kantak
RATIONALE: Research with the spontaneously hypertensive rat (SHR) model of attention deficit/hyperactivity disorder demonstrated that chronic methylphenidate treatment during adolescence increased cocaine self-administration established during adulthood under a progressive ratio (PR) schedule. Compared to vehicle, chronic atomoxetine treatment during adolescence failed to increase cocaine self-administration under a PR schedule in adult SHR. OBJECTIVES: We determined if enhanced noradrenergic transmission at α2-adrenergic receptors within prefrontal cortex contributes to this neutral effect of adolescent atomoxetine treatment in adult SHR...
July 20, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28725548/age-dependent-lasting-effects-of-methylphenidate-on-the-gabaergic-system-of-adhd-patients
#3
Michelle M Solleveld, Anouk Schrantee, Nicolaas A J Puts, Liesbeth Reneman, Paul J Lucassen
Stimulants are the main pharmacological treatment for patients with attention-deficit/hyperactivity disorder (ADHD). Their current prescription rates are rising, both in children, adolescents and adults. Related to the impulse control phenotype, both preclinical and clinical studies have demonstrated lower γ-amino butyric acid (GABA) levels in prefrontal brain regions in ADHD. Whereas stimulant treatment increases GABA levels, preclinical studies have suggested that stimulant treatment effects may be age-dependent...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28724480/neuroticism-and-the-overlap-between-autistic-and-adhd-traits-findings-from-a-population-sample-of-young-adult-australian-twins
#4
Shin-Ho Park, Adam J Guastella, Michael Lynskey, Arpana Agrawal, John N Constantino, Sarah E Medland, Yun Ju C Song, Nicholas G Martin, Lucía Colodro-Conde
Neuroticism, a 'Big Five' personality trait, has been associated with sub-clinical traits of both autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD). The objective of the current study was to examine whether causal overlap between ASD and ADHD traits can be accounted for by genetic and environmental risk factors that are shared with neuroticism. We performed twin-based structural equation modeling using self-report data from 12 items of the Neo Five-Factor Inventory Neuroticism domain, 11 Social Responsiveness Scale items, and 12 Adult ADHD Self-Report Scale items obtained from 3,170 young adult Australian individual twins (1,081 complete pairs)...
August 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28724403/the-association-between-attention-deficit-hyperactivity-disorder-and-internet-addiction-a-systematic-review-and-meta-analysis
#5
Bing-Qian Wang, Nan-Qi Yao, Xiang Zhou, Jian Liu, Zheng-Tao Lv
BACKGROUND: This study aimed to analyze the association between Attention Deficit/Hyperactivity Disorder (ADHD) and Internet addiction (IA). METHODS: A systematic literature search was performed in four online databases in total including CENTRAL, EMBASE, PubMed and PsychINFO. Observational studies (case-control, cross-sectional and cohort studies) measuring the correlation between IA and ADHD were screened for eligibility. Two independent reviewers screened each article according to the predetermined inclusion criteria...
July 19, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28714720/the-behavioral-effects-of-chronic-sugar-and-or-caffeine-consumption-in-adult-and-adolescent-rats
#6
Jane L Franklin, Travis A Wearne, Judi Homewood, Jennifer L Cornish
Caffeine is a psychostimulant frequently consumed by adults and children, often in combination with high levels of sugar. Chronic pretreatment with either substance can amplify both amphetamine and cocaine-induced hyperactivity in rodents. The present study sought to elucidate whether age at the time of exposure to sugar and/or caffeine alters sensitivity to an acute illicit psychostimulant (methamphetamine, [METH]) challenge in adulthood. Adult and adolescent (Postnatal Day 35 on first day of treatment) male Sprague-Dawley rats were treated for 26 days with water, caffeine (0...
August 2017: Behavioral Neuroscience
https://www.readbyqxmd.com/read/28713294/screening-for-adult-attention-deficit-hyperactivity-disorder-in-a-psychiatric-outpatient-population-with-specific-focus-on-sex-differences
#7
Salvatore Corbisiero, Raffaela M Hartmann-Schorro, Anita Riecher-Rössler, Rolf-Dieter Stieglitz
BACKGROUND/AIMS: Attention-deficit/hyperactivity disorder (ADHD) is often overlooked in adults; moreover, the problem seems to be even more critical in women. In the present, observational screening study, a clinical, particularly adult outpatient population was examined regarding frequency and severity of a likely ADHD, whereby sex differences were of particular interest. METHODS: 224 participants, 146 men and 78 women, were included. Based on data recorded with the self-rating WHO screening instrument Adult ADHD Self-Report Scale (ASRS-v1...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28712074/efficacy-and-safety-of-shp465-mixed-amphetamine-salts-in-the-treatment-of-attention-deficit-hyperactivity-disorder-in-adults-results-of-a-randomized-double-blind-placebo-controlled-forced-dose-clinical-study
#8
Richard H Weisler, Michael Greenbaum, Valerie Arnold, Ming Yu, Brian Yan, Margo Jaffee, Brigitte Robertson
OBJECTIVE: The objective of this randomized, double-blind, placebo-controlled study was to evaluate the efficacy and safety of SHP465 mixed amphetamine salts (MAS) in adults with attention-deficit/hyperactivity disorder (ADHD). METHODS: Eligible adults [aged 18-55 years; meeting the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition ADHD criteria; baseline ADHD Rating Scale with Adult Prompts (ADHD-RS-AP) total scores ≥28] were randomized 1:1:1 to placebo or forced-dose SHP465 MAS (12...
July 15, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28711473/interaction-of-reelin-and-stress-on-immobility-in-the-forced-swim-test-but-not-dopamine-mediated-locomotor-hyperactivity-or-prepulse-inhibition-disruption-relevance-to-psychotic-and-mood-disorders
#9
Michael J Notaras, Billie Vivian, Carey Wilson, Maarten van den Buuse
RATIONALE: Psychotic disorders, such as schizophrenia, as well as some mood disorders, such as bipolar disorder, have been suggested to share common biological risk factors. One such factor is reelin, a large extracellular matrix glycoprotein that regulates neuronal migration during development as well as numerous activity-dependent processes in the adult brain. The current study sought to evaluate whether a history of stress exposure interacts with endogenous reelin levels to modify behavioural endophenotypes of relevance to psychotic and mood disorders...
July 13, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28710364/gene-wide-association-study-reveals-rnf122-ubiquitin-ligase-as-a-novel-susceptibility-gene-for-attention-deficit-hyperactivity-disorder
#10
Iris Garcia-Martínez, Cristina Sánchez-Mora, María Soler Artigas, Paula Rovira, Mireia Pagerols, Montse Corrales, Eva Calvo-Sánchez, Vanesa Richarte, Mariona Bustamante, Jordi Sunyer, Bru Cormand, Miquel Casas, Josep Antoni Ramos-Quiroga, Marta Ribasés
Attention Deficit Hyperactivity Disorder (ADHD) is a common childhood-onset neurodevelopmental condition characterized by pervasive impairment of attention, hyperactivity, and/or impulsivity that can persist into adulthood. The aetiology of ADHD is complex and multifactorial and, despite the wealth of evidence for its high heritability, genetic studies have provided modest evidence for the involvement of specific genes and have failed to identify consistent and replicable results. Due to the lack of robust findings, we performed gene-wide and pathway enrichment analyses using pre-existing GWAS data from 607 persistent ADHD subjects and 584 controls, produced by our group...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28705922/the-cochrane-collaboration-withdraws-a-review-on-methylphenidate-for-adults-with-attention-deficit-hyperactivity-disorder
#11
Kim Boesen, Luis Carlos Saiz, Juan Erviti, Ole Jakob Storebø, Christian Gluud, Peter C Gøtzsche, Karsten Juhl Jørgensen
A Cochrane systematic review on immediate-release methylphenidate for adults with attention deficit hyperactivity disorder (ADHD) was withdrawn from the Cochrane Library on 26 May 2016 after substantial criticism of its methods and flawed conclusions. Retraction of scientific papers on this basis is unusual but can be necessary. We provide a summary of the criticism that led to the withdrawal. We detail the methodological flaws of the withdrawn Cochrane systematic review and general issues of bias and shortcomings of the included ADHD trials: cross-over designs compared with parallel-group designs, exclusion of participants with psychiatric comorbidity, absence of 'functional outcomes' and use of clinical outcomes with limited relevance, short trial duration and small trial populations, broken blinding caused by easily recognisable side effects, combining outcome assessments by trial investigators and participants, outcome reporting bias, poor evaluation of cardiovascular and psychiatric harms and conflicts of interest of trialists and systematic reviewers...
July 13, 2017: Evidence-based Medicine
https://www.readbyqxmd.com/read/28704274/maternal-separation-induces-long-term-effects-on-monoamines-and-brain-derived-neurotrophic-factor-levels-on-the-frontal-cortex-amygdala-and-hippocampus-differential-effects-after-a-stress-challenge
#12
Soledad Récamier-Carballo, Erika Estrada-Camarena, Carolina López-Rubalcava
The maternal separation (MS) paradigm is a well-known animal model that resembles the stress of early adverse life experiences and produces structural and functional abnormalities when animals are adults. The present study analyzed the effect of MS, in adult mice, on brain-derived neurotrophic factor (BDNF), serotonin (5-HT), and dopamine (DA) levels, and the turnover rate in the hippocampus, frontal cortex, and amygdala, and brain regions that are associated with emotion. Also, the effects of MS in depression-like responses in adult mice were studied...
July 12, 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/28700674/effects-of-taurine-on-resting-state-fmri-activity-in-spontaneously-hypertensive-rats
#13
Vincent Chin-Hung Chen, Tsai-Ching Hsu, Li-Jeng Chen, Hong-Chun Chou, Jun-Cheng Weng, Bor-Show Tzang
Attention deficit hyperactivity disorder (ADHD) is a global behavior illness among children and adults. To investigate the effects of taurine on resting-state fMRI activity in ADHD, a spontaneously hypertensive rat (SHR) animal model was adopted. Significantly decreased serum C-reactive protein (CRP) was detected in rats of Wistar Kyoto (WKY) high-taurine group and significantly decreased interleukin (IL)-1β and CRP were detected in rats of SHR low-taurine and high-taurine groups. Moreover, significantly higher horizontal locomotion was detected in rats of WKY low-taurine and SHR low-taurine groups than in those of controls...
2017: PloS One
https://www.readbyqxmd.com/read/28699075/differential-brain-activations-in-adult-attention-deficit-hyperactivity-disorder-subtypes-a-counting-stroop-functional-mri-study
#14
Chi-Yung Shang, Chia Sheng, Li-Kuang Yang, Tai-Li Chou, Susan Shur-Fen Gau
Although previous functional neuroimaging studies have found abnormal brain activations in individuals with attention deficit hyperactivity disorder (ADHD), little was known about distinct brain dysfunctions across different ADHD subtypes. The objective of the present study was to investigate the abnormal brain activations associated with two ADHD subtypes, predominantly inattentive (ADHD-PI) and combined (ADHD-C) subtypes. Twenty-five adults with ADHD-PI, 25 with ADHD-C, and 30 healthy controls (HC) participated in this study...
July 11, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28698828/a-case-of-pediatric-post-traumatic-stress-disorder-presenting-as-attention-deficit-hyperactivity-disorder-a-case-report
#15
Muhammad A Tahir, Nida R Gujar, Nusrat Jahan
In the past few years, there has been increased recognition that children, who have faced traumatic incidences, can develop post-traumatic stress disorder (PTSD), just like in adults. We present a case of PTSD in a 6-year-old child who endured three surgical procedures because he was suffering from a congenital cranial stenosis (Pfeiffer) syndrome. Because of repetitive painful episodes, resulting from the syndrome, and then post-surgical complications, the child developed behavioral outbursts, hypervigilence, concentration problems, and irritability...
May 10, 2017: Curēus
https://www.readbyqxmd.com/read/28688349/depressive-symptoms-and-the-role-of-affective-temperament-in-adults-with-attention-deficit-hyperactivity-disorder-adhd-a-comparison-with-bipolar-disorder
#16
Fernando Torrente, Pablo López, Alicia Lischinsky, Marcelo Cetkovich-Bakmas, Facundo Manes
OBJECTIVES: To investigate the characteristics of depressive symptoms and the influence of affective temperament in adults with attention-deficit/hyperactivity disorder (ADHD), in comparison with bipolar disorder (BD) patients and healthy controls (HCs). METHOD: Sixty patients with ADHD, 50 patients with BD, and 30 HCs were assessed with instruments for measuring depressive symptoms (Beck Depression Inventory-II), and affective temperaments (Temperament Scale of Memphis, Pisa and San Diego, self-administered version; TEMPS-A)...
October 15, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28687812/blast-induced-tinnitus-and-elevated-central-auditory-and-limbic-activity-in-rats-a-manganese-enhanced-mri-and-behavioral-study
#17
Jessica Ouyang, Edward Pace, Laura Lepczyk, Michael Kaufman, Jessica Zhang, Shane A Perrine, Jinsheng Zhang
Blast-induced tinitus is the number one service-connected disability that currently affects military personnel and veterans. To elucidate its underlying mechanisms, we subjected 13 Sprague Dawley adult rats to unilateral 14 psi blast exposure to induce tinnitus and measured auditory and limbic brain activity using manganese-enhanced MRI (MEMRI). Tinnitus was evaluated with a gap detection acoustic startle reflex paradigm, while hearing status was assessed with prepulse inhibition (PPI) and auditory brainstem responses (ABRs)...
July 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28686107/critical-exploration-of-co-occurring-attention-deficit-hyperactivity-disorder-mood-disorder-and-substance-use-disorder
#18
Judith Regnart, Ilse Truter, Anneke Meyer
Co-occurring disorders (CODs) describe a Substance Use Disorder (SUD) accompanied by a comorbid psychiatric disorder. Attention-Deficit/Hyperactivity Disorder (ADHD) and mood disorders are common CODs with high prevalence rates in SUD populations. It is proposed that literature on a tri-condition presentation of ADHD, mood disorder and SUD is limited. Areas covered: A literature search was conducted using a keyword search on EBSCOhost. Initially 2 799 records were identified, however, only two articles included all three conditions occurring concurrently in individuals...
July 13, 2017: Expert Review of Pharmacoeconomics & Outcomes Research
https://www.readbyqxmd.com/read/28686059/household-diversion-of-prescription-stimulants-medication-misuse-by-parents-of-children-with-attention-deficit-hyperactivity-disorder
#19
Tammy Pham, Ruth Milanaik, Alyson Kaplan, Helen Papaioannou, Andrew Adesman
OBJECTIVES: The primary objective of this study is to investigate household diversion of stimulant medication. Secondary objectives are to examine clinical/demographic predictors of diversion, types of formulations diverted, exposure to household diversion in the media, and storage of prescription stimulants within households. METHODS: Questionnaires were completed by 180 parents of youth who were currently taking stimulant medication for treatment of attention-deficit/hyperactivity disorder (ADHD)...
July 7, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28680036/behavioral-abnormalities-with-disruption-of-brain-structure-in-mice-overexpressing-vgf
#20
Takahiro Mizoguchi, Hiroko Minakuchi, Mitsue Ishisaka, Kazuhiro Tsuruma, Masamitsu Shimazawa, Hideaki Hara
VGF nerve growth factor inducible (VGF) is a neuropeptide induced by nerve growth factor and brain-derived neurotrophic factor. This peptide is involved in synaptic plasticity, neurogenesis, and neurite growth in the brain. Patients with depression and bipolar disorder have lower-than-normal levels of VGF, whereas patients with schizophrenia and other cohorts of patients with depression have higher-than-normal levels. VGF knockout mice display behavioral abnormalities such as higher depressive behavior and memory dysfunction...
July 5, 2017: Scientific Reports
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