keyword
MENU ▼
Read by QxMD icon Read
search

Adhd dopamine

keyword
https://www.readbyqxmd.com/read/29739866/region-specific-regulation-of-presynaptic-dopamine-homeostasis-by-d2-autoreceptors-shapes-the-in-vivo-impact-of-the-neuropsychiatric-disease-associated-dat-variant-val559
#1
Raajaram Gowrishankar, Paul J Gresch, Gwynne L Davis, Rania M Katamish, Justin R Riele, Adele M Stewart, Roxanne A Vaughan, Maureen K Hahn, Randy D Blakely
Disruptions of dopamine (DA) signaling contribute to a broad spectrum of neuropsychiatric disorders, including attention-deficit hyperactivity disorder (ADHD), addiction, bipolar disorder and schizophrenia. Despite evidence that risk for these disorders derives from heritable variation in DA-linked genes, a better understanding is needed of the molecular and circuit context through which gene variation drives distinct disease traits. Previously, we identified the DA transporter (DAT) variant Val559 in subjects with ADHD and established that the mutation supports anomalous DAT-mediated DA efflux (ADE)...
May 8, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29694913/effects-of-taurine-on-striatal-dopamine-transporter-expression-and-dopamine-uptake-in-shr-rats
#2
Vincent Chin-Hung Chen, Chun-Ching Chiu, Li-Jeng Chen, Tsai-Ching Hsu, Bor-Show Tzang
Dopaminergic deficits in the prefrontal cortex and striatum have been attributed to the pathogenesis of attention-deficit hyperactivity disorder (ADHD). Our recent study revealed that high-dose taurine improves hyperactive behavior and brain-functional signals in SHR rats. This study investigates the effect of taurine on the SHR striatum by detecting the spontaneous alternation, DA transporter (DAT) level, dopamine uptake and brain-derived neurotrophic factor (BDNF) expression. A significant increase in the total arm entries was detected in both WKY and SHR rats fed with low-dose taurine but not in those fed with high-dose taurine...
April 22, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29687078/firing-of-putative-dopamine-neurons-in-ventral-tegmental-area-is-modulated-by-probability-of-success-during-performance-of-a-stop-change-task
#3
Stephen S Tennyson, Adam T Brockett, Nicholas W Hricz, Daniel W Bryden, Matthew R Roesch
Response inhibition, the ability to refrain from unwanted actions, is an essential component of complex behavior and is often impaired across numerous neuropsychiatric disorders such as addiction, attention-deficit hyperactivity disorder (ADHD), schizophrenia, and obsessive-compulsive disorder. Accordingly, much research has been devoted to characterizing brain regions responsible for the regulation of response inhibition. The stop-signal task, a task in which animals are required to inhibit a prepotent response in the presence of a STOP cue, is one of the most well-studied tasks of response inhibition...
March 2018: ENeuro
https://www.readbyqxmd.com/read/29682852/novel-in-silico-multivariate-mapping-of-intrinsic-and-anticorrelated-connectivity-to-neurocognitive-functional-maps-supports-the-maturational-hypothesis-of-adhd
#4
Nina de Lacy, Ian Kodish, Srinivas Rachakonda, Vince D Calhoun
From childhood to adolescence, strengthened coupling in frontal, striatal and parieto-temporal regions associated with cognitive control, and increased anticorrelation between task-positive and task-negative circuits, subserve the reshaping of behavior. ADHD is a common condition peaking in adolescence and regressing in adulthood, with a wide variety of cognitive control deficits. Alternate hypotheses of ADHD emphasize lagging circuitry refinement versus categorical differences in network function. However, quantifying the individual circuit contributions to behavioral findings, and relative roles of maturational versus categorical effects, is challenging in vivo or in meta-analyses using task-based paradigms within the same pipeline, given the multiplicity of neurobehavioral functions implicated...
April 22, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29670821/amphetamine-but-not-methylphenidate-increases-ethanol-intake-in-adolescent-male-but-not-in-female-rats
#5
Paul Ruiz, Aldo Calliari, Patricia Genovese, Cecilia Scorza, Ricardo Marcos Pautassi
Introduction: There has been an increasing interest in analyzing the interactions between stimulants and ethanol during childhood and adolescence. Stimulants are used to treat attention-deficit hyperactivity disorder (ADHD) in these developmental stages, during which ethanol initiation and escalation often occur. Methods: This study assessed the effects of repeated d-amphetamine (AMPH) or methylphenidate (MPH) treatment during adolescence [male and female Wistar rats, between postnatal day (PD) 28 to PD34, approximately] on the initiation of ethanol intake during a later section of adolescence (PD35 to PD40)...
April 2018: Brain and Behavior
https://www.readbyqxmd.com/read/29595626/a-case-of-congenital-insensitivity-to-pain-with-anhidrosis-comorbid-with-attention-deficit-hyperactivity-disorder-clinical-implications-for-pathophysiology-and-treatment
#6
Elham Shirazi, Shirin Sayyahfar, Mahtab Motamed, Javad Alaghband-Rad
Congenital insensitivity to pain with anhidrosis (CIPA) is a rare autosomal recessive genetic disorder caused by a mutation in the neurotrophic tyrosine kinase receptor (NTRK1) gene. CIPA is accompanied by abnormal catecholamine metabolism and decreased blood concentration of dopamine and norepinephrine. Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder of heterogeneous etiology and presentation, and recent reports have suggested a pathophysiological role of neurotrophins in ADHD...
April 2018: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/29564731/dopamine-d4-receptor-gene-associated-with-the-frontal-striatal-cerebellar-loop-in-children-with-adhd-a-resting-state-fmri-study
#7
Andan Qian, Xin Wang, Huiru Liu, Jiejie Tao, Jiejie Zhou, Qiong Ye, Jiance Li, Chuang Yang, Jingliang Cheng, Ke Zhao, Meihao Wang
Attention deficit hyperactivity disorder (ADHD) is a common childhood neuropsychiatric disorder that has been linked to the dopaminergic system. This study aimed to investigate the effects of regulation of the dopamine D4 receptor (DRD4) on functional brain activity during the resting state in ADHD children using the methods of regional homogeneity (ReHo) and functional connectivity (FC). Resting-state functional magnetic resonance imaging data were analyzed in 49 children with ADHD. All participants were classified as either carriers of the DRD4 4-repeat/4-repeat (4R/4R) allele (n = 30) or the DRD4 2-repeat (2R) allele (n = 19)...
March 21, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29559554/neuropsychiatric-disease-associated-genetic-variants-of-the-dopamine-transporter-display-heterogeneous-molecular-phenotypes
#8
Freja Herborg, Thorvald F Andreassen, Frida Berlin, Claus J Loland, Ulrik Gether
Genetic factors are known to significantly contribute to the etiology of psychiatric diseases such as attention deficit hyperactivity disorder (ADHD) and autism spectrum and bipolar disorders, but the underlying molecular processes remain largely elusive. The dopamine transporter (DAT) has received continuous attention as a potential risk factor for psychiatric disease, as it is critical for dopamine homeostasis and serves as principal target for ADHD medications. Constrain metrics for the DAT-encoding gene solute carrier family 6 member 3 (SLC6A3) indicate that missense mutations are under strong negative selection, pointing to pathophysiological outcomes when DAT function is compromised...
March 20, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29520239/behavioral-phenotyping-of-dopamine-transporter-knockout-rats-compulsive-traits-motor-stereotypies-and-anhedonia
#9
Stefano Cinque, Francesca Zoratto, Anna Poleggi, Damiana Leo, Luca Cerniglia, Silvia Cimino, Renata Tambelli, Enrico Alleva, Raul R Gainetdinov, Giovanni Laviola, Walter Adriani
Alterations in dopamine neurotransmission are generally associated with diseases such as attention-deficit/hyperactivity disorder (ADHD) and obsessive-compulsive disorder (OCD). Such diseases typically feature poor decision making and lack of control on executive functions and have been studied through the years using many animal models. Dopamine transporter (DAT) knockout (KO) and heterozygous (HET) mice, in particular, have been widely used to study ADHD. Recently, a strain of DAT KO rats has been developed (1)...
2018: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29499467/adverse-physiological-and-psychological-effects-of-screen-time-on-children-and-adolescents-literature-review-and-case-study
#10
Gadi Lissak
A growing body of literature is associating excessive and addictive use of digital media with physical, psychological, social and neurological adverse consequences. Research is focusing more on mobile devices use, and studies suggest that duration, content, after-dark-use, media type and the number of devices are key components determining screen time effects. Physical health effects: excessive screen time is associated with poor sleep and risk factors for cardiovascular diseases such as high blood pressure, obesity, low HDL cholesterol, poor stress regulation (high sympathetic arousal and cortisol dysregulation), and Insulin Resistance...
July 2018: Environmental Research
https://www.readbyqxmd.com/read/29496512/pharmacological-analysis-of-zebrafish-lphn3-1-morphant-larvae-suggests-that-saturated-dopaminergic-signaling-could-underlie-the-adhd-like-locomotor-hyperactivity
#11
Merlin Lange, Cynthia Froc, Hannah Grunwald, William H J Norton, Laure Bally-Cuif
Polymorphisms in the gene coding for the adhesion G-protein coupled receptor LPHN3 are a risk factor for attention-deficit/hyperactivity disorder (ADHD). Transient down-regulation of latrophilin3.1 (lphn3.1), the zebrafish LPHN3 homologue, causes hyperactivity. Zebrafish injected with a lphn3.1-specific morpholino are hyperactive and display an impairment in dopaminergic neuron development. In the present study we used lphn3.1 morphants to further characterize the changes to dopaminergic signaling that trigger hyperactivity...
June 8, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29483340/inter-individual-differences-in-the-impulsive-compulsive-dimension-deciphering-related-dopaminergic-and-serotonergic-metabolisms-at-rest
#12
Françoise Dellu-Hagedorn, Marion Rivalan, Aurélie Fitoussi, Philippe De Deurwaerdère
Several impulse control disorders such as ADHD, mania, personality disorders or substance abuse share common behavioural traits, like impulsiveness, risk-taking or inflexible behaviour. These disorders are treated with drugs targeting dopamine (DA) and/or serotonin (5-HT). However, the patient's monoamine imbalance that these neurotransmitters compensate is unclear. This study aims to investigate the patterns of DA and 5-HT metabolisms at rest within selected brain regions related to inter-individual variability in six main components of impulsivity/compulsivity (anticipatory hyperactivity, premature responses, delay discounting, risk-taking, perseveration, flexibility)...
April 19, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29478746/methylphenidate-alters-monoaminergic-and-metabolic-pathways-in-the-cerebellum-of-adolescent-rats
#13
Emmanuel Quansah, Victor Ruiz-Rodado, Martin Grootveld, Tyra S C Zetterström
Abnormalities in the cerebellar circuitry have been suggested to contribute to some of the symptoms associated with attention deficit hyperactivity disorder (ADHD). The psychostimulant methylphenidate (MPH) is the major drug for treating this condition. Here, the effects of acute (2.0 mg/kg and 5.0 mg/kg) and chronic (2.0 mg/kg, twice daily for 15 days) MPH treatments were investigated in adolescent (35-40 days old) rats on monoaminergic and metabolic markers in the cerebellum. Data acquired indicates that acute MPH treatment (2...
April 2018: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29433615/a-haplotype-of-the-dopamine-transporter-gene-modulates-regional-homogeneity-gray-matter-volume-and-visual-memory-in-children-with-attention-deficit-hyperactivity-disorder
#14
C Y Shang, H Y Lin, W Y Tseng, S S Gau
BACKGROUND: The dopamine transporter gene (DAT1) and visual memory deficits have been consistently reported to be associated with attention-deficit/hyperactivity disorder (ADHD). This study aimed to examine whether a DAT1 haplotype affected functional and structural brain alterations in children with ADHD and whether those alterations were associated with visual memory. METHOD: We recruited a total of 37 drug-naïve children with ADHD (17 with the DAT1 rs27048 (C)/rs429699 (T) haplotype and 20 without the CT haplotype) and 37 typically developing children (17 with the CT haplotype and 20 without the CT haplotype)...
February 13, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29428394/the-pharmacology-of-amphetamine-and-methylphenidate-relevance-to-the-neurobiology-of-attention-deficit-hyperactivity-disorder-and-other-psychiatric-comorbidities
#15
REVIEW
Stephen V Faraone
Psychostimulants, including amphetamines and methylphenidate, are first-line pharmacotherapies for individuals with attention-deficit/hyperactivity disorder (ADHD). This review aims to educate physicians regarding differences in pharmacology and mechanisms of action between amphetamine and methylphenidate, thus enhancing physician understanding of psychostimulants and their use in managing individuals with ADHD who may have comorbid psychiatric conditions. A systematic literature review of PubMed was conducted in April 2017, focusing on cellular- and brain system-level effects of amphetamine and methylphenidate...
April 2018: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29406596/novelty-related-behavior-of-young-and-adult-dopamine-transporter-knockout-rats-implication-for-cognitive-and-emotional-phenotypic-patterns
#16
A Adinolfi, C Carbone, D Leo, R R Gainetdinov, G Laviola, W Adriani
Attention deficit hyperactivity disorder (ADHD) is a neuropsychiatric disorder characterized by a developmentally inappropriate, pervasive and persistent pattern of severe inattention, hyperactivity and impulsivity. Despite onset in early childhood, ADHD may continue into adulthood with substantial impairment in social, academic and occupational functioning. A new animal model of this disorder was developed in rats with genetic deletion of the dopamine transporter (DAT) gene (dopamine transporter knockout rats; DAT-KO rats)...
April 2018: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/29392209/methylphenidate-attenuates-the-response-to-cold-pain-but-not-to-aversive-auditory-stimuli-in-healthy-human-a-double-blind-randomized-controlled-study
#17
Dorit Pud, Eelena Broitman, Omar Hameed, Erica Suzan, Joshua Aviram, May Haddad, Salim Hadad, Rafi Shemesh, Elon Eisenberg
Introduction: We recently showed that the psycho-stimulant norepinephrine-dopamine reuptake inhibitor methylphenidate (MP) prolonged cold pain threshold and tolerance in adults with attention-deficit hyperactivity disorder (ADHD). Objectives: The objectives of the present study were to: (1) examine whether MP has antinociceptive properties in healthy men; (2) test MP's effects on responses to aversive auditory stimuli. The underlying aim was to determine whether MP exerts antinociceptive properties or more generalized, nonspecific attenuating effects on different aversive sensory modalities...
May 2017: Pain Reports (Baltimore, Md.)
https://www.readbyqxmd.com/read/29378209/methylphenidate-ameliorates-hypoxia-induced-mitochondrial-damage-in-human-neuroblastoma-sh-sy5y-cells-through-inhibition-of-oxidative-stress
#18
Mei Zhu, Yuan Tian, Huan Zhang, Xinxin Ma, Boxin Shang, Jiao Zhang, Yuntong Jiao, Yupeng Zhang, Jinsong Hu, Yaping Wang
AIMS: Methylphenidate (MPH) is a dopamine-reuptake inhibitor approved for the treatment of attention-deficit/hyperactivity disorder (ADHD). Nonetheless, the cellular and molecular mechanisms of MPH are still unknown. We attempt to determine whether MPH protect neuron cells against oxidative stress by using human neuroblastoma SH-SY5Y cells. MAIN METHODS: The SH-SY5Y cells were cultured in normoxic and hypoxic conditions in the presence of different doses of MPH...
March 15, 2018: Life Sciences
https://www.readbyqxmd.com/read/29374517/association-analysis-of-norepinephrine-transporter-polymorphisms-and-methylphenidate-response-in-adhd-patients
#19
Nora Angyal, Erzsebet Zsofia Horvath, Zsanett Tarnok, Mara J Richman, Emese Bognar, Krisztina Lakatos, Maria Sasvari-Szekely, Zsofia Nemoda
AIMS: Methylphenidate (MPH) is the most frequently prescribed drug in Attention Deficit Hyperactivity Disorder (ADHD). Hitherto mostly the dopamine transporter gene has been studied in MPH-response and only a few studies analyzed the norepinephrine transporter (NET, SLC6A2) gene, although MPH is a potent inhibitor of both dopamine and norepinephrine transporters. We aimed to analyze this monoamine transporter gene in relation to ADHD per se and MPH-response in particular to gain further knowledge in ADHD pharmacogenetics using a Caucasian sample...
June 8, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29348190/pronounced-hyperactivity-cognitive-dysfunctions-and-bdnf-dysregulation-in-dopamine-transporter-knock-out-rats
#20
Damiana Leo, Ilya Sukhanov, Francesca Zoratto, Placido Illiano, Lucia Caffino, Fabrizio Sanna, Giulia Messa, Marco Emanuele, Alessandro Esposito, Mariia Dorofeikova, Evgeny A Budygin, Liudmila Mus, Evgenia V Efimova, Marco Niello, Stefano Espinoza, Tatyana D Sotnikova, Marius C Hoener, Giovanni Laviola, Fabio Fumagalli, Walter Adriani, Raul R Gainetdinov
Dopamine (DA) controls many vital physiological functions and is critically involved in several neuropsychiatric disorders such as schizophrenia and attention deficit hyperactivity disorder. The major function of the plasma membrane dopamine transporter (DAT) is the rapid uptake of released DA into presynaptic nerve terminals leading to control of both the extracellular levels of DA and the intracellular stores of DA. Here, we present a newly developed strain of rats in which the gene encoding DAT knockout Rats (DAT-KO) has been disrupted by using zinc finger nuclease technology...
February 21, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
keyword
keyword
114746
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"