Results 11 to 20 of about 48,073 (302)

Role of D1/D2 dopamin receptors antagonist perphenazine in morphine analgesia and tolerance in rats

open access: yesBiomolecules & Biomedicine, 2013
While opioid receptors have been implicated in the development of tolerance, the subsequent mechanisms involved in these phenomena have not been completely understood.
Ercan Ozdemir   +2 more
doaj   +1 more source

The dopamine D1-D2 receptor heteromer in striatal medium spiny neurons: evidence for a third distinct neuronal pathway in basal ganglia

open access: yesFrontiers in Neuroanatomy, 2011
Dopaminergic signaling within the basal ganglia has classically been thought to occur within two distinct neuronal pathways; the direct striatonigral pathway which contains the dopamine D1 receptor and the neuropeptides dynorphin and substance P, and the
Melissa L. Perreault   +7 more
doaj   +1 more source

Cortical Dopamine Transmission as Measured with the [11C]FLB 457 - Amphetamine PET Imaging Paradigm Is Not Influenced by COMT Genotype. [PDF]

open access: yesPLoS ONE, 2016
Basic investigations link a Val158Met polymorphism (rs4680) in the catechol-O-methyltransferase (COMT) gene to not only its enzymatic activity, but also to its dopaminergic tone in the prefrontal cortex.
Rajesh Narendran   +7 more
doaj   +1 more source

Dysregulation of dopamine neurotransmission in the nucleus accumbens in immobilization-induced hypersensitivity

open access: yesFrontiers in Pharmacology, 2022
Cast immobilization causes sensory hypersensitivity, which is also a symptom of neuropathic pain and chronic pain. However, the mechanisms underlying immobilization-induced hypersensitivity remain unclear.
Yuki Kishikawa   +7 more
doaj   +1 more source

Abundant immunohistochemical expression of dopamine D2 receptor and p53 protein in meningiomas: follow-up, relation to gender, age, tumor grade, and recurrence [PDF]

open access: yesBrazilian Journal of Medical and Biological Research, 2015
Meningiomas are common, usually benign tumors, with a high postoperative recurrence rate. However, the genesis and development of these tumors remain controversial.
G. Trott   +5 more
doaj   +3 more sources

Initial d2 dopamine receptor sensitivity predicts cocaine sensitivity and reward in rats. [PDF]

open access: yesPLoS ONE, 2013
The activation of dopamine receptors within the mesolimbic dopamine system is known to be involved in the initiation and maintenance of cocaine use. Expression of the D2 dopamine receptor subtype has been implicated as both a predisposing factor and ...
Kathryn E Merritt, Ryan K Bachtell
doaj   +1 more source

Antisera specific for D2 dopamine receptors [PDF]

open access: yesBiochemical Journal, 1993
Antisera have been raised against two peptides from the sequence of D2 dopamine receptors: peptide 1 from the predicted second extracellular loop and peptide 2 from the predicted third intracellular loop. The antisera recognize specifically a 95 kDa band in Western blots of several bovine brain regions, which corresponds to the denatured D2 dopamine ...
Andrew J. Doherty   +2 more
openaire   +3 more sources

Depression of Serotonin Synaptic Transmission by the Dopamine Precursor L-DOPA

open access: yesCell Reports, 2015
Imbalance between the dopamine and serotonin (5-HT) neurotransmitter systems has been implicated in the comorbidity of Parkinson’s disease (PD) and psychiatric disorders.
Stephanie C. Gantz   +4 more
doaj   +1 more source

Cocaine-induced adaptation of dopamine D2S, but not D2L autoreceptors

open access: yeseLife, 2017
The dopamine D2 receptor has two splice variants, D2S (Short) and D2L (Long). In dopamine neurons, both variants can act as autoreceptors to regulate neuronal excitability and dopamine release, but the roles of each variant are incompletely characterized.
Brooks G Robinson   +5 more
doaj   +1 more source

Molecular dynamics of dopamine at the D2 receptor. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1991
A three-dimensional model of the dopamine D2 receptor, assumed to be a target of antipsychotic drug action, was constructed from its amino acid sequence. The model was based on structural similarities within the super-family of guanine nucleotide-binding regulatory (G) protein-coupled neuroreceptors and has seven alpha-helical transmembrane segments ...
Ingebright Sylte   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy