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Dopamine transporter

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https://www.readbyqxmd.com/read/28206711/localization-patterns-of-dopamine-active-transporter-synthesizing-cells-during-development-of-brine-shrimp
#1
Bo Yong Kim, Gyeong Hee Shin, In Soo Lee, Suhng Wook Kim, Ho Seung Kim, Jin Kwan Kim, Seung Gwan Lee
There have been many studies on dopamine active transporter (DAT) in humans and laboratory animals; however, there is a lack of information on DAT in brine shrimp. In this study, we demonstrated the neuronal and nonneuronal characteristics of DAT-synthesizing (DAT(+) cells) during development of brine shrimp. In neuronal cells, the DAT(+) neurons in the central body and lobes of a protocerebrum (PC) controlled the deutocerebrum. The sensory cells of nauplius eyes projected their decussated axons to the PC, and the DAT(+) cells at the posterior region were associated with migration and control of the 10 posterior neurons during the early nauplius stage...
February 16, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28194630/source-based-morphometry-multivariate-approach-to-analyze-123-i-fp-cit-spect-imaging
#2
Enrico Premi, V D Calhoun, V Garibotto, R Turrone, A Alberici, E Cottini, A Pilotto, S Gazzina, M Magoni, B Paghera, B Borroni, A Padovani
PURPOSE: [(123)I]FP-CIT (DaTSCAN®) single-photon emission computed tomography (SPECT) imaging is widely used to study neurodegenerative parkinsonism, by measuring presynaptic dopamine transporter (DAT) in striatal regions. Beyond DAT, [(123)I]FP-CIT may be considered for other monoaminergic systems, in particular the serotonin transporter (SERT). Independent component analysis (ICA) implemented in source-based morphometry (SBM) could represent an alternative method to explore monoaminergic pathways, studying the relationship among voxels and grouping them into "neurotransmission" networks...
February 13, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28193454/new-developments-in-brain-research-of-internet-and-gaming-disorder
#3
REVIEW
Aviv Weinstein, Abigail Livny, Abraham Weizman
There is evidence that the neural mechanisms underlying Internet Gaming Disorder (IGD) resemble those of drug addiction. Functional Magnetic Resonance Imaging (fMRI) studies of the resting state and measures of gray matter volume have shown that Internet game playing was associated with changes to brain regions responsible for attention and control, impulse control, motor function, emotional regulation, sensory-motor coordination. Furthermore, Internet game playing was associated with lower white matter density in brain regions that are involved in decision-making, behavioral inhibition and emotional regulation...
February 10, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28192111/effects-of-progesterone-administered-after-mptp-on-dopaminergic-neurons-of-male-mice
#4
Nadhir Litim, Marc Morissette, Thérèse Di Paolo
Progesterone neuroprotection of striatal dopamine (DA) in male mice lesioned with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) was previously reported when administered before MPTP or an hour after. A dose of MPTP to induce a partial lesion was used to model early stages or prodromal Parkinson. We hypothesized that brain DA can be restored by progesterone administered early (24 h) or later (5 days) after MPTP. Male mice received 4 injections of MPTP (8 mg/kg) and progesterone (8 mg/kg) once daily for 5 days started 24 h or 5 days after MPTP...
February 9, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28186690/reduced-levels-of-cacna1c-attenuate-mesolimbic-dopamine-system-function
#5
Chantelle E Terrillion, David T Dao, Roger Cachope, Mary Kay Lobo, Adam C Puche, Joseph F Cheer, Todd D Gould
Genetic variation in CACNA1C, which codes for the L-type calcium channel (LTCC) Cav 1.2, is associated with clinical diagnoses of bipolar disorder, depression, and schizophrenia. Dysregulation of the mesolimbic dopamine (DA) system is linked to these syndromes and LTCCs are required for normal DAergic neurotransmission between the ventral tegmental area (VTA) and nucleus accumbens (NAc). It is unclear, however, how variations in CACNA1C genotype, and potential subsequent changes in expression levels in these regions, modify risk...
February 10, 2017: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/28182634/the-slc6a3-gene-possibly-affects-susceptibility-to-late-onset-alcohol-dependence-but-not-specific-personality-traits-in-a-han-chinese-population
#6
Chang-Chih Huang, Shin-Chang Kuo, Yi-Wei Yeh, Chun-Yen Chen, Che-Hung Yen, Chih-Sung Liang, Pei-Shen Ho, Ru-Band Lu, San-Yuan Huang
Dopaminergic dysfunction has an important role in the pathoetiology of alcohol dependence (AD). The purpose of this study was to determine whether the solute carrier family 6 member 3 (SLC6A3) gene (also known as the dopamine transporter DAT gene) was associated with AD, and whether variants in the SLC6A3 locus were associated with specific personality traits in patients with AD. Sixteen polymorphisms in SLC6A3 were analyzed using 637 patients with AD and 523 healthy controls. To reduce clinical heterogeneity, patients were classified into two subgroups: early-onset AD (EOAD) and late-onset AD (LOAD)...
2017: PloS One
https://www.readbyqxmd.com/read/28181430/ellipsoidal-colloids-with-a-controlled-surface-roughness-via-bio-inspired-surface-engineering-building-blocks-for-liquid-marbles-and-superhydrophobic-surfaces
#7
Pengjiao Zhang, Lu Yang, Qiang Li, Songhai Wu, Shaoyi Jia, Zhanyong Li, Zhenkun Zhang, Linqi Shi
Understanding the important role of the surface roughness of nano-/colloidal particles and harnessing them for practical applications need novel strategies to control the particles' surface topology. Although there are many examples of spherical particles with a specific surface roughness, non-spherical ones with similar surface features are rare. The current work report a one-step, straightforward and bio-inspired surface engineering strategy to prepare ellipsoidal particles with a controlled surface roughness...
February 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28180961/dermal-phospho-alpha-synuclein-deposits-confirm-rem-sleep-behaviour-disorder-as-prodromal-parkinson-s-disease
#8
Kathrin Doppler, Hanna-Maria Jentschke, Lena Schulmeyer, David Vadasz, Annette Janzen, Markus Luster, Helmut Höffken, Geert Mayer, Joachim Brumberg, Jan Booij, Thomas Musacchio, Stephan Klebe, Elisabeth Sittig-Wiegand, Jens Volkmann, Claudia Sommer, Wolfgang H Oertel
Phosphorylated alpha-synuclein (p-alpha-syn) deposits, one of the neuropathological hallmarks of Parkinson's disease (PD), have recently been detected in dermal nerve fibres in PD patients with good specificity and sensitivity. Here, we studied whether p-alpha-syn may serve as a biomarker in patients with a high risk of developing PD, such as those with REM sleep behaviour disorder (RBD). We compared the presence and distribution of p-alpha-syn deposits in dermal nerve fibres in 18 patients with RBD, 25 patients with early PD and 20 normal controls...
February 8, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28177089/striatal-and-extrastriatal-dopamine-transporter-availability-in-schizophrenia-and-its-clinical-correlates-a-voxel-based-and-high-resolution-pet-study
#9
Eric Artiges, Claire Leroy, Manon Dubol, Marie Prat, Audrey Pepin, Audrey Mabondo, Renaud de Beaurepaire, Béatrice Beaufils, Jean-Pierre Korwin, André Galinowski, Marc-Antoine D'Albis, Maria-João Santiago-Ribeiro, Bernard Granger, Eleni T Tzavara, Jean-Luc Martinot, Christian Trichard
No abstract text is available yet for this article.
February 8, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28176786/disrupted-glutamatergic-transmission-in-prefrontal-cortex-contributes-to-behavioral-abnormality-in-an-animal-model-of-adhd
#10
Jia Cheng, Aiyi Liu, Michael Y Shi, Zhen Yan
Spontaneously hypertensive rats (SHR) are the most widely used animal model for the study of attention deficit hyperactivity disorder (ADHD). Here we sought to reveal the neuronal circuits and molecular basis of ADHD and its potential treatment using SHR. Combined electrophysiological, biochemical, pharmacological, chemicogenetic and behavioral approaches were utilized. We found that AMPAR-mediated synaptic transmission in pyramidal neurons of prefrontal cortex (PFC) was diminished in SHR, which was correlated with the decreased surface expression of AMPAR subunits...
February 8, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28176326/identification-of-novel-inhibitors-of-the-amino-acid-transporter-b-0-at1-slc6a19-a-potential-target-to-induce-protein-restriction-and-to-treat-type-2-diabetes
#11
Qi Cheng, Nishank Shah, Angelika Bröer, Stephen Fairweather, Yang Jiang, Dieter Schmoll, Ben Corry, Stefan Bröer
BACKGROUND AND PURPOSE: The neutral amino acid transporter B(0) AT1 (SLC6A19) has recently been identified as a possible target to treat type 2 diabetes and related disorders. B(0) AT1 mediates the Na(+) -dependent uptake of all neutral amino acids. For surface expression and catalytic activity, B(0) AT1 requires coexpression of collectrin (TMEM27). In this study, we established tools to identify and evaluate novel inhibitors of B(0) AT1. EXPERIMENTAL APPROACH: A CHO-based cell line was generated, stably expressing collectrin and B(0) AT1...
February 8, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28176268/no-genetic-association-between-attention-deficit-hyperactivity-disorder-adhd-and-parkinson-s-disease-in-nine-adhd-candidate-snps
#12
Julia M Geissler, Marcel Romanos, Manfred Gerlach, Daniela Berg, Claudia Schulte
Attention-deficit/hyperactivity disorder (ADHD) and Parkinson's disease (PD) involve pathological changes in brain structures such as the basal ganglia, which are essential for the control of motor and cognitive behavior and impulsivity. The cause of ADHD and PD remains unknown, but there is increasing evidence that both seem to result from a complicated interplay of genetic and environmental factors affecting numerous cellular processes and brain regions. To explore the possibility of common genetic pathways within the respective pathophysiologies, nine ADHD candidate single nucleotide polymorphisms (SNPs) in seven genes were tested for association with PD in 5333 cases and 12,019 healthy controls: one variant, respectively, in the genes coding for synaptosomal-associated protein 25 k (SNAP25), the dopamine (DA) transporter (SLC6A3; DAT1), DA receptor D4 (DRD4), serotonin receptor 1B (HTR1B), tryptophan hydroxylase 2 (TPH2), the norepinephrine transporter SLC6A2 and three SNPs in cadherin 13 (CDH13)...
February 7, 2017: Attention Deficit and Hyperactivity Disorders
https://www.readbyqxmd.com/read/28176009/dopamine-and-serotonin-modulation-of-motor-and-non-motor-functions-of-the-non-human-primate-striato-pallidal-circuits-in-normal-and-pathological-states
#13
REVIEW
Véronique Sgambato-Faure, Léon Tremblay
Thanks to the non-human primate (NHP), we have shown that the pharmacological disturbance of the anterior striatum or of external globus pallidus triggers a set of motivation and movement disorders, depending on the functional subterritory involved. One can, therefore, assume that the aberrant activity of the different subterritories of basal ganglia (BG) could lead to different behavioral disorders in neuropsychiatric disorders as Tourette's syndrome and Parkinson's disease. We are now addressing in the NHP the impact of modulating dopamine or serotonin within the BG on behavioral disorders...
February 7, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28174689/characterization-of-murine-polyspecific-monoamine-transporters
#14
Yamato Miura, Takeo Yoshikawa, Fumito Naganuma, Tadaho Nakamura, Tomomitsu Iida, Anikó Kárpáti, Takuro Matsuzawa, Asuka Mogi, Ryuichi Harada, Kazuhiko Yanai
The dysregulation of monoamine clearance in the central nervous system occurs in various neuropsychiatric disorders, and the role of polyspecific monoamine transporters in monoamine clearance is increasingly highlighted in recent studies. However, no study to date has properly characterized polyspecific monoamine transporters in the mouse brain. In the present study, we examined the kinetic properties of three mouse polyspecific monoamine transporters [organic cation transporter 2 (Oct2), Oct3, and plasma membrane monoamine transporter (Pmat)] and compared the absolute mRNA expression levels of these transporters in various brain areas...
February 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28173643/the-abuse-potential-of-%C3%AE-piperidinopropiophenone-pipp-and-%C3%AE-piperidinopentiothiophenone-pivt-two-new-synthetic-cathinones-with-piperidine-ring-substituent
#15
Chrislean Jun Botanas, Seong Shoon Yoon, June Bryan de la Peña, Irene Joy Dela Peña, Mikyung Kim, Taeseon Woo, Joung-Wook Seo, Choon-Gon Jang, Kyung-Tae Park, Young Hun Lee, Yong Sup Lee, Hee Jin Kim, Jae Hoon Cheong
A diversity of synthetic cathinones has flooded the recreational drug marketplace worldwide. This variety is often a response to legal control actions for one specific compound (e.g. methcathinone) which has resulted in the emergence of closely related replacement. Based on recent trends, the nitrogen atom is one of the sites in the cathinone molecule being explored by designer type modifications. In this study, we designed and synthesized two new synthetic cathinones, (1) α-piperidinopropiophenone (PIPP) and (2) α-piperidinopentiothiophenone (PIVT), which have piperidine ring substituent on their nitrogen atom...
February 6, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28167616/towards-trans-diagnostic-mechanisms-in-psychiatry-neurobehavioral-profile-of-rats-with-a-loss-of-function-point-mutation-in-the-dopamine-transporter-gene
#16
Valentina Vengeliene, Anton Bespalov, Martin Roßmanith, Sandra Horschitz, Stefan Berger, Ana L Relo, Hamid R Noori, Peggy Schneider, Thomas Enkel, Dusan Bartsch, Miriam Schneider, Berthold Behl, Anita C Hansson, Patrick Schloss, Rainer Spanagel
The Research Domain Criteria (RDoC) matrix has been developed to reorient psychiatric research towards measurable behavioral dimensions and underlying mechanisms. Here we used a new genetic rat model with a loss of function point mutation in the dopamine transporter (DAT) gene (Slc6a3_N157K) to systematically study the RDoC matrix (www.nimh.nih.gov/research-priorities/rdoc/constructs/rdoc-matrix.shtml). First, we examined the impact of the Slc6a3_N157K mutation on monoaminergic signaling. We then performed behavioral tests representing each of the five RDoC domains - negative and positive valence systems, cognitive, social, and in arousal/regulatory systems...
February 6, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28163672/targeting-neuroblastoma-cell-surface-proteins-recommendations-for-homology-modeling-of-hnet-alk-and-trkb
#17
Yazan Haddad, Zbyněk Heger, Vojtech Adam
Targeted therapy is a promising approach for treatment of neuroblastoma as evident from the large number of targeting agents employed in clinical practice today. In the absence of known crystal structures, researchers rely on homology modeling to construct template-based theoretical structures for drug design and testing. Here, we discuss three candidate cell surface proteins that are suitable for homology modeling: human norepinephrine transporter (hNET), anaplastic lymphoma kinase (ALK), and neurotrophic tyrosine kinase receptor 2 (NTRK2 or TrkB)...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28163252/the-legacy-pesticide-dieldrin-acts-as-a-teratogen-and-alters-the-expression-of-dopamine-transporter-and-dopamine-receptor-2a-in-zebrafish-danio-rerio-embryos
#18
Kathleena I Sarty, Andrew Cowie, Christopher J Martyniuk
Dieldrin (DLD) is a lipophilic pesticide that shows environmental persistence. The objectives were to determine the effects of DLD on GABAergic and dopaminergic systems in developing zebrafish. Both chorionated and dechorionated embryos (~24h post-hatch) were exposed to a single concentration of DLD (0.347-3470μM) for 48h. Following exposure, a subset of larvae was placed into clean water for 6days (i.e. depuration phase). Chorionated embryos showed <15% mortality while dechorionated embryos showed higher mortality (>30%), suggesting that the chorion protected the embryos...
February 3, 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/28163218/atypical-dopamine-efflux-caused-by-3-4-methylenedioxypyrovalerone-mdpv-via-the-human-dopamine-transporter
#19
Aparna Shekar, Jenny I Aguilar, Greta Galli, Nicholas V Cozzi, Simon D Brandt, Arnold E Ruoho, Michael H Baumann, Heinrich J G Matthies, Aurelio Galli
Synthetic cathinones are similar in chemical structure to amphetamines, and their behavioral effects are associated with enhanced dopaminergic signaling. The past ten years of research on the common constituent of bath salts, MDPV (the synthetic cathinone 3,4-methylenedioxypyrovalerone), has aided the understanding of how synthetic cathinones act at the dopamine (DA) transporter (DAT). Several groups have described the ability of MDPV to block the DAT with high-affinity. In this study, we demonstrate for the first time, a new mode of action of MDPV, namely its ability to promote DAT-mediated DA efflux...
February 2, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28161754/further-characterization-of-the-glyt-1-inhibitor-org25935-anti-alcohol-neurobehavioral-and-gene-expression-effects
#20
Helga Höifödt Lidö, Susanne Jonsson, Petri Hyytiä, Mia Ericson, Bo Söderpalm
The glycine transporter-1 inhibitor Org25935 is a promising candidate in a treatment concept for alcohol use disorder targeting the glycine system. Org25935 inhibits ethanol-induced dopamine elevation in brain reward regions and reduces ethanol intake in Wistar rats. This study aimed to further characterise the compound and used ethanol consumption, behavioral measures, and gene expression as parameters to investigate the effects in Wistar rats and, as pharmacogenetic comparison, Alko-Alcohol (AA) rats. Animals were provided limited access to ethanol in a two-bottle free-choice paradigm with daily drug administration...
February 4, 2017: Journal of Neural Transmission
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