Results 81 to 90 of about 11,284,409 (311)

Temporal administration of entacapone with slow release L-dopa: pharmacokinetic profile and clinical outcome

open access: yes, 2004
Entacapone is a specific, peripherally acting catechol- O-methyltransferase (COMT) inhibitor that prevents peripheral degradation of L-dopa, thus improving its bioavailability.
A. Bassi   +22 more
core   +1 more source

Multi‐tissue Metabolic GWAS and Drought‐Responsive Multi‐omics Reveal the Genetic Basis of the Quinoa Metabolome

open access: yesAdvanced Science, EarlyView.
A multi‐omics framework combining multitissue genome‐wide association studies, metabolomics, transcriptomics, proteomics, and functional validation uncovers the genetic basis of specialized metabolism in quinoa. The study identifies hundreds of metabolite‐associated loci, prioritizes candidate genes for saponin, betalain, and flavonoid biosynthesis ...
Julia von Steimker   +11 more
wiley   +1 more source

L-DOPA administration improved symptoms and motor deficits of PD marmosets.

open access: yes, 2018
(A) Cumulative PDRS scores of the marmosets during the on and off L-DOPA treatments. The parkinsonian marmosets (n = 3) showed improvement in PD disabilities following L-DOPA treatment (B) Motor subscale scores showing progression of individual ...
Marcel M. Daadi (40597)   +1 more
core   +1 more source

A Disulfide‐Sticker Strategy for Marine Adhesive Coatings: From Deciphering Self‐Assembly Mechanism to Functional Application in Hair Regeneration

open access: yesAdvanced Science, EarlyView.
A disulfide‐sticker strategy, coupled with Ca2+ coordination, drives the hierarchical self‐assembly of a recombinant scallop adhesive protein into fishnet‐like nanostructures, affording a coating with versatile wet adhesion and intrinsic antioxidant activity. This biocompatible coating markedly promotes hair regeneration by activating follicular niches,
Lulu Wang   +7 more
wiley   +1 more source

L-DOPA-induced signaling pathways and neuroepigenetic mechanisms in experimental parkinsonism and dyskinesia

open access: yes, 2014
In patients with Parkinson’s disease (PD), the restoration of depleted striatal dopamine by chronic administration of its precursor, L-DOPA, results in the emergence of debilitating involuntary movements.
Michael Feyder (18637498)
core  

Alpha and beta EEG power reflects L-dopa acute administration in parkinsonian patients [PDF]

open access: yes, 2014
Aim: To evaluate the effect of an acute L-dopa administration on eye-closed resting state electroencephalographic (EEG) activity of cognitively preserved Parkinsonian patients.
Di Biase L   +11 more
core   +1 more source

Polydopamine Nanoparticle‐Mediated Precise Near‐Infrared Optical Stimulation for Cognitive Enhancement

open access: yesAdvanced Science, EarlyView.
Polydopamine nanoparticles enable a precise, non‐genetic, and transcranial neuromodulation strategy via near‐infrared photothermal stimulation. By activating TRPV1 channels, this approach specifically enhances hippocampal gamma oscillations, thereby rescuing spatial memory deficits in models of perioperative neurocognitive disorder.
Yan‐Bo Zhou   +10 more
wiley   +1 more source

Changes in extracellular and intracellular L-DOPA concentration in methyl-L-DOPA-pretreated primary cultured striatal astrocytes after withdrawal of L-DOPA.

open access: yes, 2014
Striatal astrocytes were treated with methyl-L-DOPA (200 µM) for 4 h or 8 h (filled bar). Furthermore, astrocytes pre-treated with methyl-L-DOPA for 8 h were incubated in fresh medium for 1 h or 4 h (gray bar).
Masato Asanuma (420841)   +4 more
core   +1 more source

l-Dopa induced dyskinesias in Parkinsonian mice: Disease severity or l-Dopa history [PDF]

open access: yes, 2015
In Parkinson’s disease, the efficacy of l-Dopa treatment changes over time, as dyskinesias emerge with previously beneficial doses. Using MitoPark mice, that models mitochondrial failure in dopamine (DA) neurons and mimics the progressive loss of ...
Cadet, Jean-Lud   +8 more
core   +1 more source

Mass spectrometry imaging identifies abnormally elevated brain L-DOPA levels and extrastriatal monoaminergic dysregulation in L-DOPA-induced dyskinesia

open access: yes, 2021
L-DOPA treatment for Parkinson's disease frequently leads to dyskinesias, the pathophysiology of which is poorly understood. We used MALDI-MSI to map the distribution of L-DOPA and monoaminergic pathways in brains of dyskinetic and nondyskinetic primates.
Crossman, Alan R.   +26 more
core   +1 more source

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