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Showing 97 to 107 of 107 entries
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Prevention of Neurite Spine Loss Induced by Dopamine D2 Receptor Overactivation in Striatal Neurons.

Frontiers in neuroscience

Zheng P, Su QP, Jin D, Yu Y, Huang XF.
PMID: 32655360
Front Neurosci. 2020 Jun 23;14:642. doi: 10.3389/fnins.2020.00642. eCollection 2020.

Psychosis has been considered a disorder of impaired neuronal connectivity. Evidence for excessive formation of dopamine D2 receptor (D2R) - disrupted in schizophrenia 1 (DISC1) complexes has led to a new perspective on molecular mechanisms involved in psychotic symptoms....

D2-like receptors in the descending dopaminergic pathway are not involved in the decreased postoperative nociceptive threshold induced by plantar incision in adult rats.

Journal of pain research

Ohtani N, Masaki E.
PMID: 27799818
J Pain Res. 2016 Oct 21;9:865-869. doi: 10.2147/JPR.S120470. eCollection 2016.

BACKGROUND: Approximately half of all patients who undergo surgery develop postoperative pain, the mechanisms of which are not well understood by anesthesiologists. D2-like receptors in the descending dopaminergic pathway play an important role in regulation of pain transmission in...

Effect of Motor Impairment on Analgesic Efficacy of Dopamine D2/3 Receptors in a Rat Model of Neuropathy.

Journal of experimental neuroscience

Dourado M, Cardoso-Cruz H, Monteiro C, Galhardo V.
PMID: 27081316
J Exp Neurosci. 2016 Apr 06;10:51-7. doi: 10.4137/JEN.S36492. eCollection 2016.

Testing the clinical efficacy of drugs that also have important side effects on locomotion needs to be properly designed in order to avoid erroneous identification of positive effects when the evaluation depends on motor-related tests. One such example is...

In Parkinson's patient-derived dopamine neurons, the triplication of α-synuclein locus induces distinctive firing pattern by impeding D2 receptor autoinhibition.

Acta neuropathologica communications

Lin M, Mackie PM, Shaerzadeh F, Gamble-George J, Miller DR, Martyniuk CJ, Khoshbouei H.
PMID: 34099060
Acta Neuropathol Commun. 2021 Jun 07;9(1):107. doi: 10.1186/s40478-021-01203-9.

Pathophysiological changes in dopamine neurons precede their demise and contribute to the early phases of Parkinson's disease (PD). Intracellular pathological inclusions of the protein α-synuclein within dopaminergic neurons are a cardinal feature of PD, but the mechanisms by which...

Quinpirole-Mediated Regulation of Dopamine D2 Receptors Inhibits Glial Cell-Induced Neuroinflammation in Cortex and Striatum after Brain Injury.

Biomedicines

Alam SI, Jo MG, Park TJ, Ullah R, Ahmad S, Rehman SU, Kim MO.
PMID: 33430188
Biomedicines. 2021 Jan 07;9(1). doi: 10.3390/biomedicines9010047.

Brain injury is a significant risk factor for chronic gliosis and neurodegenerative diseases. Currently, no treatment is available for neuroinflammation caused by the action of glial cells following brain injury. In this study, we investigated the quinpirole-mediated activation of...

Synergistic effect between quinpirole and L-NAME as well as sulpiride and L-arginine on the modulation of anxiety and memory processes in the 6-OHDA mouse model of Parkinson's disease: An isobologram analysis.

Neurobiology of learning and memory

Zarrindast MR, Fazli-Tabaei S, Khakpai F.
PMID: 34737042
Neurobiol Learn Mem. 2021 Dec;186:107538. doi: 10.1016/j.nlm.2021.107538. Epub 2021 Nov 01.

We evaluated interactions between dopamine D2 receptor and nitric oxide (NO) actions on the regulation of anxiety and memory in the 6-hydroxydopamine (6-OHDA) mouse model of Parkinson's disease (PD). A unilateral guide cannula was stereotaxically implanted over the right...

Regulation of Fear Extinction in the Basolateral Amygdala by Dopamine D2 Receptors Accompanied by Altered GluR1, GluR1-Ser845 and NR2B Levels.

Frontiers in behavioral neuroscience

Shi YW, Fan BF, Xue L, Wen JL, Zhao H.
PMID: 28676746
Front Behav Neurosci. 2017 Jun 20;11:116. doi: 10.3389/fnbeh.2017.00116. eCollection 2017.

The amygdala, a critical structure for both Pavlovian fear conditioning and fear extinction, receives sparse but comprehensive dopamine innervation and contains dopamine D1 and D2 receptors. Fear extinction, which involves learning to suppress the expression of a previously learned...

Decreased Choroidal Blood Perfusion Induces Myopia in Guinea Pigs.

Investigative ophthalmology & visual science

Zhou X, Zhang S, Yang F, Yang Y, Huang Q, Huang C, Qu J, Zhou X.
PMID: 34967855
Invest Ophthalmol Vis Sci. 2021 Dec 01;62(15):30. doi: 10.1167/iovs.62.15.30.

PURPOSE: The development of myopia in guinea pigs can be inhibited by attenuating scleral hypoxia by increasing choroidal blood perfusion (ChBP). In this study, we reduced ChBP through surgical and pharmacological methods to determine the effect on myopia development....

Discriminative stimulus effects of 3,4-methylenedioxypyrovalerone (MDPV) and structurally related synthetic cathinones.

Behavioural pharmacology

Seaman RW, Doyle MR, Sulima A, Rice KC, Collins GT.
PMID: 33587482
Behav Pharmacol. 2021 Aug 01;32(5):357-367. doi: 10.1097/FBP.0000000000000624.

The 3,4-methylenedioxypyrovalerone (MDPV), and other structurally related synthetic cathinones, are popular alternatives to prototypical illicit psychostimulants, such as cocaine and methamphetamine. These drugs are often referred to as 'bath salts' and function either as cocaine-like inhibitors of monoamine uptake,...

Enhanced D2 Agonism Induces Conditioned Appetitive Sexual Responses Toward Non-reproductive Conspecifics.

Archives of sexual behavior

Ramírez-Rodríguez R, León-Sequeda I, Salomón-Lara L, Perusquia-Cabrera D, Herrera-Covarrubias D, Fernández-Cañedo L, García LI, Manzo J, Pfaus JG, López-Meraz ML, Coria-Avila GA.
PMID: 34665381
Arch Sex Behav. 2021 Nov;50(8):3901-3912. doi: 10.1007/s10508-021-02023-7. Epub 2021 Oct 19.

Brain mechanisms of sexual attraction toward reproductive partners develop from a systematic interrelationship between biology (nature) and learning (nurture). However, the causes of attraction toward non-reproductive partners are poorly understood. Here, we explored the role of Pavlovian learning under...

The role of D2-like dopaminergic receptor in dopamine-mediated modulation of Th17-cells in multiple sclerosis.

Current neuropharmacology

Melnikov M, Sviridova A, Rogovskii V, Kudrin V, Murugin V, Boyko A, Pashenkov M.
PMID: 34429055
Curr Neuropharmacol. 2021 Aug 22; doi: 10.2174/1570159X19666210823103859. Epub 2021 Aug 22.

Dopamine is a direct mediator of neuroimmune interaction and may play a significant role in multiple sclerosis (MS) pathogenesis by modulating immune cell activity and cytokine production. We studied the effects of dopamine on Th17-cells function in 34 patients...

Showing 97 to 107 of 107 entries