Results 41 to 50 of about 39,913 (215)

Dopaminergic presynaptic modulation of nigral afferents: its role in the generation of recurrent bursting in substantia nigra pars reticulata neurons

open access: yesFrontiers in Systems Neuroscience, 2011
Previous work has shown the functions associated with activation of dopamine presynaptic receptors in some substantia nigra pars reticulata (SNr) afferents: i) striatonigral terminals (direct pathway) posses presynaptic dopamine D1-class receptors whose ...
Jose De Jesus Aceves   +6 more
doaj   +1 more source

Beta band modulation by dopamine D2 receptors in the primary motor cortex and pedunculopontine nucleus in a rat model of Parkinson’s disease

open access: yesBrain Research Bulletin, 2022
Beta band (12–30 Hz) hypersynchrony within the basal ganglia-thalamocortical network has been suggested as a hallmark of Parkinson’s disease (PD) pathophysiology. Abnormal beta band oscillations are found in the pedunculopontine nucleus (PPN) and primary
Xuenan Wang   +7 more
doaj   +1 more source

Clinical, manometric, genetic, and histologic associations in pediatric intestinal pseudo‐obstruction: A case series

open access: yesJournal of Pediatric Gastroenterology and Nutrition, EarlyView.
Abstract Objectives Pediatric intestinal pseudo‐obstruction (PIPO) is a severe bowel motility disorder characterized by impaired propulsion of gastrointestinal contents without mechanical obstruction. PIPO encompasses congenital and acquired disorders, including neuropathies, myopathies, and mesenchymopathies.
Sharon Wolfson   +8 more
wiley   +1 more source

Dopamine D2 antagonist-induced striatal Nur77 expression requires activation of mGlu5 receptors by cortical afferents

open access: yesFrontiers in Pharmacology, 2012
Dopamine D2 receptor antagonists modulate gene transcription in the striatum. However, the molecular mechanism underlying this effect remains elusive. Here we used the expression of Nur77, a transcription factor of the orphan nuclear receptor family, as ...
Jérôme eMaheux   +7 more
doaj   +1 more source

The Spectrum of Abnormal Tongue Movements: Review of Phenomenology, Etiology, and Differential Diagnosis

open access: yesMovement Disorders Clinical Practice, EarlyView.
ABSTRACT Background Classifying abnormal tongue movements is challenging due to their varied presentations and limited visibility compared to other body parts. Accurate identification of the phenomenology guides physical examination and can point to specific diagnoses.
Nathaniel Bendahan   +4 more
wiley   +1 more source

Dopamine D1-D2 receptor heteromer signaling pathway in the brain: emerging physiological relevance

open access: yesMolecular Brain, 2011
Dopamine is an important catecholamine neurotransmitter modulating many physiological functions, and is linked to psychopathology of many diseases such as schizophrenia and drug addiction.
Hasbi Ahmed   +2 more
doaj   +1 more source

Preservation of dendritic D2 receptor transmission in substantia nigra dopamine neurons with age

open access: yesScientific Reports, 2023
Substantia nigra pars compacta (SNc) dopamine neurons are required for voluntary movement and reward learning, and advanced age is associated with motor and cognitive decline.
Eva Troyano-Rodriguez   +4 more
doaj   +1 more source

Cocaine Sensitization: Modulation by Dopamine D2 Receptors [PDF]

open access: yesCerebral Cortex, 2002
Repeated administration of cocaine progressively increases drug-induced locomotor activity. This study examined the role of dopamine D(1)- and D(2)-like receptors in the medial prefrontal cortex (mPFC) in mediating these sensitized behaviors. For initiation experiments, animals received bilateral intra-mPFC injections of either saline, the D(1)-like ...
Chad E, Beyer, Jeffery D, Steketee
openaire   +2 more sources

Morphological Changes in Direct Pathway Striatal Neurons in a Rat Model of Tardive Dyskinesia

open access: yesMovement Disorders, EarlyView.
Abstract Background Tardive dyskinesia (TD) and drug‐induced parkinsonism (DIP) arise from prolonged dopamine antagonist use. Although D2 receptor hypersensitivity in the indirect pathway is a proposed mechanism, the role of the direct pathway remains unclear.
Hiroki Hikichi   +6 more
wiley   +1 more source

Heterodimeric D1-D2 dopamine receptors: a review [PDF]

open access: yesBiomeditsinskaya Khimiya, 2017
This review summarizes modern data on the structure and functions ofheteromersformed by D1 and D2 dopamine receptors focusing on their role in the mechanisms of drug dependence. This article discusses potential functional significance of heterodimeric D1-D2 dopamine receptorsdue to their localization in the brain as well as unique pharmacological ...
N L, Vekshina   +3 more
openaire   +2 more sources

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