Results 31 to 40 of about 5,625 (181)

Istradefylline to Treat Patients with Parkinson’s Disease Experiencing “Off” Episodes: A Comprehensive Review

open access: yesNeurology International, 2020
Parkinson’s disease (PD) is a common neurodegenerative disorder that leads to significant morbidity and disability. PD is caused by a loss of dopaminergic, cholinergic, serotonergic, and noradrenergic neurons in the central nervous system (CNS), and ...
Amnon A. Berger   +8 more
doaj   +1 more source

Management of OFF condition in Parkinson disease [PDF]

open access: yesMental Health Clinician, 2023
Parkinson disease (PD) impacts nearly 1 million individuals in the United States. Nearly every patient with PD will require therapy with dopamine in the form of levodopa as the disease progresses.
Jessa Koch, PharmD, BCPP, APh
doaj   +1 more source

Platelet-mediated metabolism of the common dietary flavonoid, quercetin. [PDF]

open access: yesPLoS ONE, 2010
Flavonoid metabolites remain in blood for periods of time potentially long enough to allow interactions with cellular components of this tissue. It is well-established that flavonoids are metabolised within the intestine and liver into methylated ...
Bernice Wright   +4 more
doaj   +1 more source

Prediction of schizophrenia using MAOA-uVNTR polymorphism: A case–control study

open access: yesIndian Journal of Psychiatry, 2020
Context: Schizophrenia has been associated with disorder of the dopamine system, which is downregulated by projections of the serotonin pathway. Dopamine and serotonin levels are regulated by a system of transporters and enzymes.
Jelena Culej   +3 more
doaj   +1 more source

In Vivo Biosynthesis and Direct Incorporation of Noncanonical Amino Acids into Proteins. [PDF]

open access: yesChembiochem
This review evaluates engineered (semi)autonomous cell systems for the biosynthesis and incorporation of noncanonical amino acids (ncAAs) into proteins. While semi‐autonomous cells convert supplied precursors into ncAAs autonomous cells integrate biosynthetic pathways that produce these building blocks intracellularly.
Illies JH, Weber TM, Drienovská I.
europepmc   +2 more sources

Loss of physical contact in space alters the dopamine system in C. elegans

open access: yesiScience, 2022
Summary: Progressive neuromuscular decline in microgravity is a prominent health concern preventing interplanetary human habitation. We establish functional dopamine-mediated impairments as a consistent feature across multiple spaceflight exposures and ...
Surabhi Sudevan   +11 more
doaj   +1 more source

Variants in COMT, CYP3A5, CYP2B6, and ABCG2 Alter Quetiapine Pharmacokinetics

open access: yesPharmaceutics, 2021
Quetiapine is an atypical antipsychotic widely used for the treatment of schizophrenia and the depressive episodes of bipolar disorder. The aim of this work was to investigate the effect of variants in relevant pharmacogenes in the pharmacokinetics of ...
Pablo Zubiaur   +8 more
doaj   +1 more source

Consensus Guideline for the Diagnosis and Treatment of Tyrosine Hydroxylase (TH) Deficiency. [PDF]

open access: yesJ Inherit Metab Dis
ABSTRACT Tyrosine hydroxylase (TH) catalyses the rate‐limiting step in dopamine biosynthesis. Autosomal recessive tyrosine hydroxylase deficiency (THD) leads to clinical phenotypes reflecting the deficiency of dopamine, norepinephrine, or epinephrine in the central nervous system (CNS), presenting along a continuous spectrum from mild to severe forms ...
Bondarenko MS   +19 more
europepmc   +2 more sources

Dopamine System Dysfunction in Alzheimer's Disease. [PDF]

open access: yesPsychogeriatrics
ABSTRACT The dopaminergic system may be at the base of some neurobehavioral symptoms, as apathy and depression, and extrapyramidal symptoms, often seen in Alzheimer's disease patients. It can also have an impact on cognitive decline, as extrapyramidal symptoms, classically linked with dopamine dysfunction, are associated with increased risk of ...
Moreira IP   +2 more
europepmc   +2 more sources

An investigation of the COMT gene Val158Met polymorphism in patients admitted to the emergency department because of synthetic cannabinoid use

open access: yesBalkan Journal of Medical Genetics, 2020
Catechol-O-methyl transferase (COMT) enzyme has a role in the inactivation of catecholamine neurotransmitters. Functional polymorphism in the COMT gene has been reported to play an important role in schizophrenia, bipolar affective disorder, aggressive ...
Nennicioglu Y   +5 more
doaj   +1 more source

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