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https://www.readbyqxmd.com/read/28616427/specific-genes-associated-with-adverse-events-of-methylphenidate-use-in-the-pediatric-population-a-systematic-literature-review
#1
REVIEW
Beinta Joensen, Morten Meyer, Lise Aagaard
The aim of this study was to review empirical studies examining associations between candidate genes and adverse events (AEs) from methylphenidate (MPH) use in children and adolescents. The PubMed, EMBASE, CINAHL, and Web of Science databases were searched from their inception until March 2017. We included empirically based articles on pharmacogenetic studies in 0-17-year-old patients that investigated associations between specific candidate genes, their polymorphisms, and reported AEs. We extracted information about study design, setting, type of AE reporter, studied genes and their polymorphisms, age and gender, administered doses, method of genotyping, outcome measures, and main findings...
April 2017: Journal of Research in Pharmacy Practice
https://www.readbyqxmd.com/read/28611559/pediatric-tourette-syndrome-a-tic-disorder-with-a-tricky-presentation
#2
Qurratul Warsi, Caroline Kirby, Mirza Beg
Dysphagia is a condition in which disruption of the swallowing process interferes with a patient's ability to eat. This may result in coughing or choking while swallowing, food sticking in the throat, or globus sensation. Eosinophilic esophagitis (EoE) is a chronic immune-mediated disease with a varied clinical spectrum of symptoms including dysphagia. Tourette syndrome (TS) is an inherited neurological disorder that manifests itself as a series of motor and vocal tics and may include oropharyngeal dysphagia...
January 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28611376/allopregnanolone-mediates-the-exacerbation-of-tourette-like-responses-by-acute-stress-in-mouse-models
#3
Laura J Mosher, Sean C Godar, Marianela Nelson, Stephen C Fowler, Graziano Pinna, Marco Bortolato
Tourette syndrome (TS) is a neuropsychiatric disorder characterized by multiple tics and sensorimotor abnormalities, the severity of which is typically increased by stress. The neurobiological underpinnings of this exacerbation, however, remain elusive. We recently reported that spatial confinement (SC), a moderate environmental stressor, increases tic-like responses and elicits TS-like sensorimotor gating deficits in the D1CT-7 mouse, one of the best-validated models of TS. Here, we hypothesized that these adverse effects may be mediated by neurosteroids, given their well-documented role in stress-response orchestration...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28608572/identification-of-candidate-genes-involved-in-the-etiology-of-sporadic-tourette-syndrome-by-exome-sequencing
#4
Yosuke Eriguchi, Hitoshi Kuwabara, Aya Inai, Yuki Kawakubo, Fumichika Nishimura, Chihiro Kakiuchi, Mamoru Tochigi, Jun Ohashi, Naoto Aoki, Kayoko Kato, Hiroyuki Ishiura, Jun Mitsui, Shoji Tsuji, Koichiro Doi, Jun Yoshimura, Shinichi Morishita, Takafumi Shimada, Masaomi Furukawa, Tadashi Umekage, Tsukasa Sasaki, Kiyoto Kasai, Yukiko Kano
Tourette Syndrome (TS) is a neurodevelopmental disorder characterized by chronic motor and vocal tics. Although there is a large genetic contribution, the genetic architecture of TS remains unclear. Exome sequencing has successfully revealed the contribution of de novo mutations in sporadic cases with neuropsychiatric disorders such as autism and schizophrenia. Here, using exome sequencing, we investigated de novo mutations in individuals with sporadic TS to identify novel risk loci and elucidate the genetic background of TS...
June 13, 2017: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
https://www.readbyqxmd.com/read/28607641/lessons-learned-from-the-study-of-masturbation-and-its-comorbidity-with-psychiatric-disorders-in-children-the-first-analytic-study
#5
Ashraf Tashakori, Atefeh Safavi, Sorour Neamatpour
BACKGROUND: The main source of information about children's masturbation is more on the basis of case reports. Due to the lack of consistent and accurate information. OBJECTIVE: This study aimed to determine prevalence and underlying factors of masturbation and its comorbidity with psychiatric disorders in children. METHODS: In this descriptive-analytical study, among the children referred to the Pediatrics Clinic of Psychiatric Ward, Golestan Hospital, Ahvaz, Southwest Iran, 98 children were selected by convenience sampling in 2014...
April 2017: Electronic Physician
https://www.readbyqxmd.com/read/28594866/revisiting-the-co-existence-of-attention-deficit-hyperactivity-disorder-and-chronic-tic-disorder-in-childhood-the-case-of-colour-discrimination-sustained-attention-and-interference-control
#6
Henrik Uebel-von Sandersleben, Björn Albrecht, Aribert Rothenberger, Anke Fillmer-Heise, Veit Roessner, Joseph Sergeant, Rosemary Tannock, Tobias Banaschewski
OBJECTIVE: Attention Deficit / Hyperactivity Disorder (ADHD) and Chronic Tic Disorder (CTD) are two common and frequently co-existing disorders, probably following an additive model. But this is not yet clear for the basic sensory function of colour processing sensitive to dopaminergic functioning in the retina and higher cognitive functions like attention and interference control. The latter two reflect important aspects for psychoeducation and behavioural treatment approaches. METHODS: Colour discrimination using the Farnsworth-Munsell 100-hue Test, sustained attention during the Frankfurt Attention Inventory (FAIR), and interference liability during Colour- and Counting-Stroop-Tests were assessed to further clarify the cognitive profile of the co-existence of ADHD and CTD...
2017: PloS One
https://www.readbyqxmd.com/read/28593598/brief-report-macrocephaly-phenotype-and-psychiatric-comorbidity-in-a-clinical-sample-of-mexican-children-and-adolescents-with-autism-spectrum-disorders
#7
Lilia Albores-Gallo, Laura Fritsche-García, Arturo Pabel Miranda-Aguirre, Montserrat Avila-Acosta
Autism spectrum disorders (ASD) may present with macrocephaly. Few studies have analyzed the association with psychiatric comorbidity. Participants were 94 children with any ASD with an age range from 2 to 16 years (Mdn 6 years), 82% were boys. It was found that 20% of the sample had macrocephaly and 1% microcephaly. There was no association between the presence of macrocephaly and subtype of ASD. The most associated comorbidity was attention-deficit/hyperactivity disorder (ADHD) 54.2%, followed by specific phobia 34%, dysthimia 29...
June 7, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28584117/histamine-modulation-of-the-basal-ganglia-circuitry-in-the-development-of-pathological-grooming
#8
Maximiliano Rapanelli, Luciana Frick, Haruhiko Bito, Christopher Pittenger
Aberrant histaminergic function has been proposed as a cause of tic disorders. A rare mutation in the enzyme that produces histamine (HA), histidine decarboxylase (HDC), has been identified in patients with Tourette syndrome (TS). Hdc knockout mice exhibit repetitive behavioral pathology and neurochemical characteristics of TS, establishing them as a plausible model of tic pathophysiology. Where, when, and how HA deficiency produces these effects has remained unclear: whether the contribution of HA deficiency to pathogenesis is acute or developmental, and where in the brain the relevant consequences of HA deficiency occur...
June 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28574423/toward-a-multifactorial-conception-of-the-gilles-de-la-tourette-syndrome-and-persistent-chronic-tic-disorder
#9
EDITORIAL
Marc E Lavoie, Kieron O'Connor
Despite recent giant leaps in understanding Gilles de la Tourette's syndrome (now Tourette Disorder in the DSM 5), accurate multi-modal description, rigorous assessment procedures, and the improvement of evidence-based treatment currently pose a considerable challenge. In this context, the current special edition aims to elaborate three important dimensions in Tourette Disorder. Firstly, the effective characterization and etiological basis of the disorder are reviewed, since such characterization impacts accurate assessment...
June 2, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28556479/tonic-and-phasic-changes-in-anteromedial-globus-pallidus-activity-in-tourette-syndrome
#10
Michal Israelashvili, Anouk Y J M Smeets, Maya Bronfeld, Dagmar H Zeef, Albert F G Leentjens, Vivianne van Kranen-Mastenbroek, Marcus L F Janssen, Yasin Temel, Linda Ackermans, Izhar Bar-Gad
BACKGROUND: Tourette syndrome is a hyperkinetic neurodevelopmental disorder characterized by tics. OBJECTIVE: Assess the neuronal changes in the associative/limbic GP associated with Tourette syndrome. METHODS: Neurophysiological recordings were performed from the anterior (associative/limbic) GPe and GPi of 8 awake patients during DBS electrode implantation surgeries. RESULTS: The baseline firing rate of the neurons was low in a state-dependent manner in both segments of the GP...
May 29, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28555406/investigation-of-previously-implicated-genetic-variants-in-chronic-tic-disorders-a-transmission-disequilibrium-test-approach
#11
Mohamed Abdulkadir, Douglas Londono, Derek Gordon, Thomas V Fernandez, Lawrence W Brown, Keun-Ah Cheon, Barbara J Coffey, Lonneke Elzerman, Carolin Fremer, Odette Fründt, Blanca Garcia-Delgar, Donald L Gilbert, Dorothy E Grice, Tammy Hedderly, Isobel Heyman, Hyun Ju Hong, Chaim Huyser, Laura Ibanez-Gomez, Ewgeni Jakubovski, Young Key Kim, Young Shin Kim, Yun-Joo Koh, Sodahm Kook, Samuel Kuperman, Bennett Leventhal, Andrea G Ludolph, Marcos Madruga-Garrido, Athanasios Maras, Pablo Mir, Astrid Morer, Kirsten Müller-Vahl, Alexander Münchau, Tara L Murphy, Kerstin J Plessen, Veit Roessner, Eun-Young Shin, Dong-Ho Song, Jungeun Song, Jennifer Tübing, Els van den Ban, Frank Visscher, Sina Wanderer, Martin Woods, Samuel H Zinner, Robert A King, Jay A Tischfield, Gary A Heiman, Pieter J Hoekstra, Andrea Dietrich
Genetic studies in Tourette syndrome (TS) are characterized by scattered and poorly replicated findings. We aimed to replicate findings from candidate gene and genome-wide association studies (GWAS). Our cohort included 465 probands with chronic tic disorder (93% TS) and both parents from 412 families (some probands were siblings). We assessed 75 single nucleotide polymorphisms (SNPs) in 465 parent-child trios; 117 additional SNPs in 211 trios; and 4 additional SNPs in 254 trios. We performed SNP and gene-based transmission disequilibrium tests and compared nominally significant SNP results with those from a large independent case-control cohort...
May 29, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28546883/how-much-do-we-know-about-adult-onset-primary-tics-prevalence-epidemiology-and-clinical-features
#12
REVIEW
Daphne Robakis
BACKGROUND: Tic disorders are generally considered to be of pediatric onset; however, reports of adult-onset tics exist in the literature. Tics can be categorized as either primary or secondary, with the latter being the larger group in adults. Primary or idiopathic tics that arise in adulthood make up a subset of tic disorders whose epidemiologic and clinical features have not been well delineated. METHODS: Articles to be included in this review were identified by searching PubMed, SCOPUS, and Web of Science using the terms adult- and late-onset tics, which resulted in 120 unique articles...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/28539852/abnormal-brain-connectivity-spectrum-disorders-following-thimerosal-administration-a-prospective-longitudinal-case-control-assessment-of-medical-records-in-the-vaccine-safety-datalink
#13
David A Geier, Janet K Kern, Kristin G Homme, Mark R Geier
BACKGROUND: Autism spectrum disorder (ASD), tic disorder (TD), and hyperkinetic syndrome of childhood (attention deficit disorder [ADD]/attention deficit hyperactivity disorder [ADHD]) are disorders recently defined as abnormal connectivity spectrum disorders (ACSDs) because they show a similar pattern of abnormal brain connectivity. This study examines whether these disorders are associated with exposure to thimerosal, a mercury (Hg)-based preservative. METHODS: A hypothesis testing case-control study evaluated the Vaccine Safety Datalink for the potential dose-dependent odds ratios (ORs) for diagnoses of ASD, TD, and ADD/ADHD compared to controls, following exposure to Hg from thimerosal-containing Haemophilus influenzae type b vaccines administrated within the first 15 months of life...
January 2017: Dose-response: a Publication of International Hormesis Society
https://www.readbyqxmd.com/read/28538981/association-of-streptococcal-throat-infection-with-mental-disorders-testing-key-aspects-of-the-pandas-hypothesis-in-a-nationwide-study
#14
Sonja Orlovska, Claus Høstrup Vestergaard, Bodil Hammer Bech, Merete Nordentoft, Mogens Vestergaard, Michael Eriksen Benros
Importance: Streptococcal infection has been linked with the development of obsessive-compulsive disorder (OCD) and tic disorders, a concept termed pediatric autoimmune neuropsychiatric disorders associated with streptococcal infection (PANDAS). However, previous studies of this association have been small, and the results have been conflicting. Objective: To investigate the risk of mental disorders, specifically OCD and tic disorders, after a streptococcal throat infection...
May 24, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28521251/the-protective-effect-of-character-maturity-in-child-aggressive-antisocial-behavior
#15
Nóra Kerekes, Örjan Falk, Sven Brändström, Henrik Anckarsäter, Maria Råstam, Björn Hofvander
BACKGROUND: Childhood aggressive antisocial behavior (CD) is one of the strongest predictors of mental health problems and criminal behavior in adulthood. The aims of this study were to describe personality profiles in children with CD, and to determine the strength of association between defined neurodevelopmental symptoms, dimensions of character maturity and CD. METHODS: A sample of 1886 children with a close to equal distribution of age (9 or 12) and gender, enriched for neurodevelopmental and psychiatric problems were selected from the nationwide Child and Adolescent Twin Study in Sweden...
July 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28502600/the-puzzling-question-of-inhibitory-control-in-tourette-syndrome-a-meta-analysis
#16
REVIEW
Simon Morand-Beaulieu, Stéphanie Grot, Jacob Lavoie, Julie B Leclerc, David Luck, Marc E Lavoie
Tourette syndrome (TS) is a neuropsychiatric disorder involving motor and phonic tics. Inhibitory control is a key issue in TS, and many disruptive or impulsive behaviors might arise from inhibitory deficits. However, conflicting findings regarding TS patients' inhibitory performance in neuropsychological tasks have been reported throughout the literature. Therefore, this meta-analysis aimed to evaluate inhibitory control through neuropsychological tasks, and to analyze the factors modulating inhibitory deficits...
May 11, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28495246/clonidine-adhesive-patch-for-the-treatment-of-tic-disorders-a-systematic-review-and-meta-analysis
#17
Shuai Wang, Yan-Zhao Wei, Jianhong Yang, Yuming Zhou, Yi Zheng
OBJECTIVE: The aim of this study was to evaluate the efficacy and safety of clonidine adhesive patch for tic disorders (TDs). METHODS: Medline, Embase, Cochrane central register of controlled trials and Chinese databases of CBM, CNKI were searched from inception to 08.2016 for randomized controlled studies (RCTs), open-label control studies of clonidine adhesive patch versus other medications or/and placebo for TDs. The cochrane Handbook for Systematic Reviews of Interventions was used to guide our study...
April 7, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28483714/purposeless-oral-activity-induced-by-meta-chlorophenylpiperazine-m-cpp-undefined-tic-like-behaviors
#18
Deborah S Kreiss, Philippe De Deurwaerdère
BACKGROUND: The pathophysiological hypothesis underlying tic disorders in Tourette syndrome (TS) is that basal ganglia are not capable of properly filtering cortical information, leading patients with difficulties in inhibiting unwanted behaviors or impulses. One of the main challenges for furthering such a hypothesis is to find appropriate animal models summarizing some aspects of the disease. METHODS: It has been established for more than 25 years in rodents that the prototypical serotonin (5-HT) agonist meta-chlorophenylpiperazine (m-CPP) elicits purposeless oral movements including chewing behavior...
May 5, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28472652/de-novo-coding-variants-are-strongly-associated-with-tourette-disorder
#19
A Jeremy Willsey, Thomas V Fernandez, Dongmei Yu, Robert A King, Andrea Dietrich, Jinchuan Xing, Stephan J Sanders, Jeffrey D Mandell, Alden Y Huang, Petra Richer, Louw Smith, Shan Dong, Kaitlin E Samocha, Benjamin M Neale, Giovanni Coppola, Carol A Mathews, Jay A Tischfield, Jeremiah M Scharf, Matthew W State, Gary A Heiman
Whole-exome sequencing (WES) and de novo variant detection have proven a powerful approach to gene discovery in complex neurodevelopmental disorders. We have completed WES of 325 Tourette disorder trios from the Tourette International Collaborative Genetics cohort and a replication sample of 186 trios from the Tourette Syndrome Association International Consortium on Genetics (511 total). We observe strong and consistent evidence for the contribution of de novo likely gene-disrupting (LGD) variants (rate ratio [RR] 2...
May 3, 2017: Neuron
https://www.readbyqxmd.com/read/28470381/relationship-of-serum-ferritin-level-and-tic-severity-in-children-with-tourette-syndrome
#20
Debabrata Ghosh, Elizabeth Burkman
PURPOSE: Tics can be considered hyperkinetic movements akin to restless leg syndrome (RLS). Drawing the analogy of iron deficiency as an etiology of RLS, it is conceivable that iron deficiency may underlie or worsen tics in Tourette syndrome (TS). The purpose of this study was to evaluate the relationship between serum ferritin levels and tic severity, as well as consequent impact on life, in children with TS. METHODS: Children <18 years, diagnosed with TS during 2009-2015, were reviewed...
May 3, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
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