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Dopamine genetic risk scores and psychiatric symptoms: Interacting risk factors for impulse control behaviours in de novo Parkinson's disease.
J Neuropsychol
January 2025
Department of Health, Medical and Neuropsychology, Leiden University, Leiden, The Netherlands.
Up to 45% of patients with Parkinson's disease (PD) experience impulse control disorders (ICDs), characterized by a loss of voluntary control over impulses, drives or temptations. This study aimed to investigate whether previously identified genetic and psychiatric risk factors interact towards the development of ICDs in PD. A total of 278 de novo PD patients (ICD-free at enrollment) were selected from the Parkinson's Progression Markers Initiative database.
View Article and Find Full Text PDFNuclear calcium signaling in D1 receptor-expressing neurons of the nucleus accumbens regulates molecular, cellular and behavioral adaptations to cocaine.
Biol Psychiatry
January 2025
Institute of Biology Paris-Seine, laboratory Neuroscience Paris-Seine, CNRS, INSERM, Sorbonne Université, UPMC Université Paris 06 F-75005, Paris, France. Electronic address:
Background: The persistence of cocaine-evoked adaptations relies on gene regulations within the reward circuit, especially in the ventral striatum (i.e., nucleus accumbens (NAc)).
View Article and Find Full Text PDFAn Electrochemical Dopamine Assay with Cobalt Oxide Palatinose Carbon Dots.
Molecules
January 2025
Department of Chemistry, Middle Tennessee State University, 440 Friendship Street, Murfreesboro, TN 37132, USA.
Elevated dopamine (DA) levels in urine denote neuroblastoma, a pediatric cancer. Saccharide-derived carbon dots (CDs) were applied to assay DA detection in simulated urine (SU) while delineating the effects of graphene defect density on electrocatalytic activity. CDs were hydrothermally synthesized to vary graphene defect densities using sucrose, raffinose, and palatinose, depositing them onto glassy carbon electrodes (GCEs).
View Article and Find Full Text PDFIdentifying potential genes driving ferroptosis in the substantia nigra and dopaminergic neurons in Parkinson's disease.
Mol Cell Neurosci
January 2025
Division of Neuroscience and Ageing Biology, CSIR-Central Drug Research Institute, Lucknow, UP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. Electronic address:
Parkinson's disease (PD) is a neurodegenerative disorder marked by dopaminergic (DA) neuron degeneration in the substantia nigra (SN). Conventional dopamine replacement therapies provide limited long-term efficacy and significant side effects. Emerging evidence suggests ferroptosis-a form of cell death driven by iron-dependent lipid peroxidation-contributes to PD pathology, though direct evidence linking dysregulation of ferroptosis-related genes in DA neuron loss in PD remains limited.
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