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https://www.readbyqxmd.com/read/27933285/developmental-profile-and-diagnoses-in-children-presenting-with-motor-stereotypies
#1
Francesco Cardona, Francesca Valente, Daniela Miraglia, Caterina D'Ardia, Valentina Baglioni, Flavia Chiarotti
INTRODUCTION: Motor stereotypies represent a typical example of the difficulty in distinguishing non-clinical behaviors (physiological and transient) from symptoms or among different disorders ["primary stereotypies," associated with autistic spectrum disorder (ASD), intellectual disabilities, genetic syndromes, and sensory impairment]. The aim of this study was to obtain an accurate assessment on the relationship between stereotypies and neurodevelopmental disorders. METHODS: We studied 23 children (3 girls), aged 36-95 months, who requested a consultation due to the persistence or increased severity of motor stereotypies...
2016: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/27917385/effects-of-sheltering-on-behavior-and-fecal-corticosterone-level-of-elderly-dogs
#2
Katsuji Uetake, Chu Han Yang, Aki Endo, Toshio Tanaka
In Japan, the human population is aging rapidly, and the abandonment of dogs by the elderly people who have died or been hospitalized becomes a problem. It is hypothesized that elderly dogs have difficulty adapting to the novel circumstances when brought to an animal shelter. Therefore, the objective of this study was to assess stress levels and demonstrate stress responses of elderly dogs just after admission to an animal shelter. As stress indicators, fecal corticosterone levels and changes in the ethogram of the dogs were investigated during the first week of admittance...
2016: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/27895554/systemic-radical-scavenger-treatment-of-a-mouse-model-of-rett-syndrome-merits-and-limitations-of-the-vitamin-e-derivative-trolox
#3
Oliwia A Janc, Marc A Hüser, Katharina Dietrich, Belinda Kempkes, Christiane Menzfeld, Swen Hülsmann, Michael Müller
Rett syndrome (RTT) is a severe neurodevelopmental disorder typically arising from spontaneous mutations in the X-chromosomal methyl-CpG binding protein 2 (MECP2) gene. The almost exclusively female Rett patients show an apparently normal development during their first 6-18 months of life. Subsequently, cognitive- and motor-impairment, hand stereotypies, loss of learned skills, epilepsy and irregular breathing manifest. Early mitochondrial impairment and oxidative challenge are considered to facilitate disease progression...
2016: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/27888271/investigation-of-the-association-between-motor-stereotypy-behavior-with-fundamental-movement-skills-adaptive-functioning-and-autistic-spectrum-disorder-symptomology-in-children-with-intellectual-disabilities
#4
Joanne L Powell, Lydia Pringle, Matt Greig
Motor stereotypy behaviors are patterned, coordinated, repetitive behaviors that are particularly evident in those with an autistic spectrum disorder and intellectual disabilities. The extent to which motor stereotypy behavior severity is associated with motor skills and maladaptive behavior, measures of adaptive functioning, along with fundamental movement skills and degree of autistic spectrum disorder symptomology is assessed in this preliminary report. Twelve participants, aged 7 to 16 years, with a reported motor stereotypy behavior and either mild or severe intellectual disability comprising developmental or global delay took part in the study...
November 25, 2016: Journal of Child Neurology
https://www.readbyqxmd.com/read/27878840/challenging-behaviours-in-adults-with-an-intellectual-disability-a-total-population-study-and-exploration-of-risk-indices
#5
Darren L Bowring, Vasiliki Totsika, Richard P Hastings, Sandy Toogood, Gemma M Griffith
OBJECTIVES: Considerable variation has been reported in the prevalence and correlates of challenging behaviour (CB) in adults with intellectual disabilities (ID). To provide a robust estimate of prevalence, we identified the entire administrative population of adults with ID in a defined geographical area and used a behaviour assessment tool with good psychometric properties. METHODS: Data from 265 adults who were known to services were collected using a demographic survey tool and the Behavior Problems Inventory - Short Form...
November 23, 2016: British Journal of Clinical Psychology
https://www.readbyqxmd.com/read/27878417/neurobehavioural-evaluation-of-resveratrol-in-murine-models-of-anxiety-and-schizophrenia
#6
Mohammed Garba Magaji, Loretta Oghenekome Iniaghe, Mutiat Abolarin, Opeyemi Isa Abdullahi, Rabiu Abdusalam Magaji
Resveratrol, a caloric restriction mimetic, is a naturally occurring polyphenolic compound with antioxidant and anti-inflammatory properties. Oxidative stress has been implicated in the etiology of a number of neuropsychiatric disorders including generalized anxiety and schizophrenia. This study investigated the anxiolytic and antipsychotic potentials of resveratrol in murine models of anxiety and schizophrenia. Mice were pretreated with resveratrol (200 and 400 mg/kg) in 1% carboxymethyl cellulose for 14 days and subjected to behavioural tests on the 15th day...
November 22, 2016: Metabolic Brain Disease
https://www.readbyqxmd.com/read/27833003/brain-histamine-depletion-enhances-the-behavioural-sequences-complexity-of-mice-tested-in-the-open-field-partial-reversal-effect-of-the-dopamine-d2-d3-antagonist-sulpiride
#7
Andrea Santangelo, Gustavo Provensi, Alessia Costa, Patrizio Blandina, Valdo Ricca, Giuseppe Crescimanno, Maurizio Casarrubea, M Beatrice Passani
Markers of histaminergic dysregulation were found in several neuropsychiatric disorders characterized by repetitive behaviours, thoughts and stereotypies. We analysed the effect of acute histamine depletion by means of i. c.v. injections of alpha-fluoromethylhistidine, a blocker of histidine decarboxylase, on the temporal organization of motor sequences of CD1 mice behaviour in the open-field test. An ethogram encompassing 9 behavioural components was employed. Durations and frequencies were only slightly affected by treatments...
February 2017: Neuropharmacology
https://www.readbyqxmd.com/read/27831627/-pathological-gambling-and-epilepsy-in-patients-with-frontotemporal-dementia-two-case-reports
#8
Sheila Castro-Suarez, Peggy Martinez, María Meza
Frontotemporal dementia is a neurodegenerative disorder of which the behavioral variant is most common. This condition is currently considered the most common cause of dementia in people younger than 60 years. Here, we present two unrelated cases in which the typical symptoms were cognitive and behavioral progressive deterioration and psychiatric disorders such as disinhibition, impulsive acts, apathy, lack of empathy, stereotypies, and changes in eating habits. The first case exhibited pathological gambling as the initial symptom and resided in a psychiatric facility for a year...
July 2016: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/27822381/clinical-pearls-how-my-patients-taught-me-the-fainting-lark-symptom
#9
A Kuiper, M E van Egmond, M P M Harms, M D Oosterhoff, B van Harten, D A Sival, T J de Koning, M A J Tijssen
BACKGROUND: Compulsive movements, complex tics and stereotypies are frequent, especially among patients with autism or psychomotor retardation. These movements can be difficult to characterize and can mimic other conditions like epileptic seizures or paroxysmal dystonia, particularly when abnormal breathing and cerebral hypoxia are induced. CASE PRESENTATION: We describe an 18-year-old patient with Asperger syndrome who presented with attacks of tonic posturing of the trunk and neck...
2016: Journal of Clinical Movement Disorders
https://www.readbyqxmd.com/read/27821225/understanding-oral-stereotypies-in-calves-alternative-strategies-hypothalamic-pituitary-adrenal-axis-re-activity-and-gene-by-environment-interactions
#10
L E Webb, C G van Reenen, B Engel, H Berends, W J J Gerrits, E A M Bokkers
Stereotypies are used as indicators of poor animal welfare and it is, therefore, important to understand underlying factors mediating their development. In calves, two oral stereotypies, that is, tongue playing and object manipulation, result mostly from insufficient structure in the diet. Three hypotheses were studied: (1) oral stereotypies in calves are one of two alternative strategies, the alternative being hypo-activity; (2) stereotyping and non-stereotyping calves differ in terms of cortisol secretion; (3) oral stereotypy development in calves rests on a gene by environment interaction...
November 8, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27818832/efficacy-of-a-feed-dispenser-for-horses-in-decreasing-cribbing-behaviour
#11
Silvia Mazzola, Clara Palestrini, Simona Cannas, Eleonora Fè, Gaia Lisa Bagnato, Daniele Vigo, Diane Frank, Michela Minero
Cribbing is an oral stereotypy, tends to develop in captive animals as a means to cope with stress, and may be indicative of reduced welfare. Highly energetic diets ingested in a short time are one of the most relevant risk factors for the development of cribbing. The aim of this study was to verify whether feeding cribbing horses through a dispenser that delivers small quantities of concentrate when activated by the animal decreases cribbing behaviour, modifies feeding behaviour, or induces frustration. Ten horses (mean age 14 y), balanced for sex, breed, and size (mean height 162 cm), were divided into two groups of 5 horses each: Cribbing and Control...
2016: Veterinary Medicine International
https://www.readbyqxmd.com/read/27811850/antigen-receptor-stereotypy-in-chronic-lymphocytic-leukemia
#12
REVIEW
K Stamatopoulos, A Agathangelidis, R Rosenquist, P Ghia
The discovery of almost identical or 'stereotyped' B-cell receptor immunoglobulins (BcR IG) among unrelated patients with chronic lymphocytic leukemia (CLL) cemented the idea of antigen selection in disease ontogeny and evolution. The systematic analysis of the stereotypy phenomenon in CLL revealed that around one-third of CLL patients may be grouped into subsets based on shared sequence motifs within the variable heavy complementarity determining region 3. Stereotyped subsets display a strikingly similar biology of the leukemic clones, referring to many different levels, from the immunogenetic and genetic and extending to the epigenetic and functional levels...
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27811173/an-allosteric-potentiator-of-the-dopamine-d1-receptor-increases-locomotor-activity-in-human-d1-knock-in-mice-without-causing-stereotypy-or-tachyphylaxis
#13
Kjell A Svensson, Beverly A Heinz, John M Schaus, James P Beck, Junliang Hao, Joseph H Krushinski, Matthew R Reinhard, Michael P Cohen, Sarah L Hellman, Brian G Getman, Xushan Wang, Michelle M Menezes, Deanna L Maren, Julie F Falcone, Wesley H Anderson, Rebecca A Wright, S Michelle Morin, Kelly L Knopp, Benjamin L Adams, Borys Rogovoy, Ilya Okun, Todd M Suter, Michael A Statnick, Donald R Gehlert, David L Nelson, Virginia L Lucaites, Renee Emkey, Neil W DeLapp, Todd R Wiernicki, Jeffrey W Cramer, Charles R Yang, Robert F Bruns
Allosteric potentiators amplify the sensitivity of physiologic control circuits, a mode of action that could provide therapeutic advantages. This hypothesis was tested with the dopamine D1 receptor potentiator DETQ [2-(2,6-dichlorophenyl)-1-((1S,3R)-3-(hydroxymethyl)-5-(2-hydroxypropan-2-yl)-1-methyl-3,4-dihydroisoquinolin-2(1H)-yl)ethan-1-one]. In human embryonic kidney 293 (HEK293) cells expressing the human D1 receptor, DETQ induced a 21-fold leftward shift in the cAMP response to dopamine, with a Kb of 26 nM...
January 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/27790142/physical-properties-and-effect-in-a-battery-of-safety-pharmacology-models-for-three-structurally-distinct-enteric-polymers-employed-as-spray-dried-dispersion-carriers
#14
Ryan M Fryer, Mita Patel, Xiaomei Zhang, Katja S Baum-Kroker, Akalushi Muthukumarana, Brian Linehan, Yin-Chao Tseng
Establishing a wide therapeutic index (TI) for pre-clinical safety is important during lead optimization (LO) in research, prior to clinical development, although is often limited by a molecules physiochemical characteristics. Recent advances in the application of the innovative vibrating mesh spray-drying technology to prepare amorphous solid dispersions may offer an opportunity to achieve high plasma concentrations of poorly soluble NCEs to enable testing and establishment of a wide TI in safety pharmacology studies...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27761302/are-gait-stereotypies-a-marker-for-neurodegeneration-in-down-syndrome-a-prospective-observation
#15
José Luiz Pedroso, Thiago Cardoso Vale, Orlando Graziani Povoas Barsottini
No abstract text is available yet for this article.
2016: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/27751959/function-of-brain-%C3%AE-2b-adrenergic-receptor-characterized-with-subtype-selective-%C3%AE-2b-antagonist-and-ko-mice
#16
Lauren Luhrs, Cynthia Manlapaz, Karen Kedzie, Sandhya Rao, Sara Cabrera-Ghayouri, John Donello, Daniel Gil
Noradrenergic signaling, through the α2A and α2C adrenergic receptors modulates the cognitive and behavioral symptoms of disorders such as schizophrenia, attention deficit hyperactivity disorder (ADHD), and addiction. However, it is unknown whether the α2B receptor has any significant role in CNS function. The present study elucidates the potential role of the α2B receptor in CNS function via the discovery and use of the first subtype-selective α2B antagonist (AGN-209419), and behavioral analyses of α-receptor knockout (KO) mice...
December 17, 2016: Neuroscience
https://www.readbyqxmd.com/read/27751663/anomalous-putamen-volume-in-children-with-complex-motor-stereotypies
#17
E Mark Mahone, Deana Crocetti, Laura Tochen, Tina Kline, Stewart H Mostofsky, Harvey S Singer
BACKGROUND: Complex motor stereotypies in children are repetitive rhythmic movements that have a predictable pattern and location, seem purposeful, but serve no obvious function, tend to be prolonged, and stop with distraction, e.g., arm or hand flapping, waving. They occur in both "primary" (otherwise typically developing) and secondary conditions. These movements are best defined as habitual behaviors and therefore pathophysiologically hypothesized to reside in premotor to posterior putamen circuits...
December 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/27730710/problem-behaviour-in-adolescent-boys-with-fragile-x-syndrome-relative-prevalence-frequency-and-severity
#18
S S Hall, R P Barnett, K M Hustyi
BACKGROUND: A large proportion of boys with fragile X syndrome (FXS), the most common known inherited form of intellectual disability (ID), exhibit problem behaviours (e.g. aggression, self-injury, property destruction and stereotypy) that can negatively impact the health and safety of others as well as the individual concerned. However, data are limited concerning the relative prevalence, frequency and severity of problem behaviours exhibited by boys with FXS compared with those by boys with mixed-aetiology ID who also exhibit problem behaviours...
October 11, 2016: Journal of Intellectual Disability Research: JIDR
https://www.readbyqxmd.com/read/27676443/targeting-anandamide-metabolism-rescues-core-and-associated-autistic-like-symptoms-in-rats-prenatally-exposed-to-valproic-acid
#19
M Servadio, F Melancia, A Manduca, A di Masi, S Schiavi, V Cartocci, V Pallottini, P Campolongo, P Ascenzi, V Trezza
Autism spectrum disorders (ASD) are characterized by altered sociability, compromised communication and stereotyped/repetitive behaviors, for which no specific treatments are currently available. Prenatal exposure to valproic acid (VPA) is a known, although still underestimated, environmental risk factor for ASD. Altered endocannabinoid activity has been observed in autistic patients, and endocannabinoids are known to modulate behavioral traits that are typically affected in ASD. On this basis, we tested the hypothesis that changes in the endocannabinoid tone contribute to the altered phenotype induced by prenatal VPA exposure in rats, with focus on behavioral features that resemble the core and associated symptoms of ASD...
2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27664019/restricted-vs-unrestricted-wheel-running-in-mice-effects-on-brain-behavior-and-endocannabinoids
#20
Sarah V Biedermann, Matthias K Auer, Laura Bindila, Gabriele Ende, Beat Lutz, Wolfgang Weber-Fahr, Peter Gass, Johannes Fuss
Beneficial effects of voluntary wheel running on hippocampal neurogenesis, morphology and hippocampal-dependent behavior have widely been studied in rodents, but also serious side effects and similarities to stereotypy have been reported. Some mouse strains run excessively when equipped with running wheels, complicating the comparability to human exercise regimes. Here, we investigated how exercise restriction to 6h/day affects hippocampal morphology and metabolism, stereotypic and basal behaviors, as well as the endocannabinoid system in wheel running C57BL/6 mice; the strain most commonly used for behavioral analyses and psychiatric disease models...
September 20, 2016: Hormones and Behavior
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