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Concept

DOPA

Publications associées (13)

Unveiling the complexity of learning and decision-making

Wei-Hsiang Lin

Reinforcement learning (RL) is crucial for learning to adapt to new environments. In RL, the prediction error is an important component that compares the expected and actual rewards. Dopamine plays a critical role in encoding these prediction errors. In my ...

EPFL2024

Tape-Stripping Electrochemical Detection of Melanoma

Hubert Girault, Andreas Stephan Lesch, Horst Pick, Tzu-En Lin, Yingdi Zhu, Sorour Darvishi

A noninvasive electrochemical melanoma detection approach based on using adhesive tapes for collecting and fixing cells from a suspicious skin area and transferring the cells into a scanning electrochemical microscope (SECM) is presented. The adhesive laye ...

AMER CHEMICAL SOC2019

Inhaling xenon ameliorates l -dopa-induced dyskinesia in experimental parkinsonism

Grégoire Courtine, Eduardo Martin Moraud, Tomislav Milekovic, Shiqi Sun

Parkinson's disease motor symptoms are treated with levodopa, but long‐term treatment leads to disabling dyskinesia. Altered synaptic transmission and maladaptive plasticity of corticostriatal glutamatergic projections play a critical role in the pathophys ...

2018

Dopamine induces soluble alpha-synuclein oligomers and nigrostriatal degeneration

Elpida Tsika

Parkinson's disease (PD) is defined by the loss of dopaminergic neurons in the substantia nigra and the formation of Lewy body inclusions containing aggregated alpha-synuclein. Efforts to explain dopamine neuron vulnerability are hindered by the lack of do ...

Nature Publishing Group2017

Multiple scanning electrochemical microscopy mapping of tyrosinase in micro-contact printed fruit samples on polyvinylidene fluoride membrane

Hubert Girault, Andreas Stephan Lesch, Liang Qiao, Fernando Cortes Salazar, Alexandra Bondarenko, Tzu-En Lin

Herein, we introduce three orthogonal and compatible methods for detecting tyrosinase, a key factor in fruit browning and skin disorders, with high spatial resolution by means of scanning electrochemical microscopy (SECM). All methods are performed subsequ ...

Elsevier2015

Cathodic pretreatment improves the resistance of boron-doped diamond electrodes to dopamine fouling

Martinus Adela Maria Gijs, Raphaël Etienne Jean Trouillon

The resistance of cathodically and anodically treated boron-doped diamond electrodes to dopamine fouling was investigated. It was found, using cyclic voltammetry and electrochemical impedance spectroscopy, that the cathodic preparation offers an increased ...

Elsevier2014

Overexpression of parkin in the rat nigrostriatal dopamine system protects against methamphetamine neurotoxicity

Bernard Schneider

Methamphetamine (METH) is a central nervous system psychostimulant with a high potential for abuse. At high doses, METH causes a selective degeneration of dopaminergic terminals in the striatum, sparing other striatal terminals and cell bodies. We previous ...

Elsevier2013

The anti-Parkinsonian drug selegiline delays the nucleation phase of α-synuclein aggregation leading to the formation of nontoxic species

Hilal Lashuel

Parkinson's disease (PD) is a movement disorder characterized by the loss of dopaminergic neurons in the substantia nigra and the formation of intraneuronal inclusions called Lewy bodies, which are composed mainly of α-synuclein (α-syn). Selegiline (Sel) i ...

Elsevier2010

Dose optimization for long-term rAAV-mediated RNA interference in the nigrostriatal projection neurons

Patrick Aebischer

Short-hairpin RNA (shRNA)-mediated gene knockdown is a powerful tool for targeted gene silencing and an emerging novel therapeutic strategy. Recent publications, however, reported unexpected toxicity after utilizing viral-mediated shRNA knockdown in vivo. ...

2009

Surface modifications based on the cyanobacterial siderophore anachelin: from structure to functional biomaterials design

Karl Gademann, Joanna Kobylinska

This review describes the design, synthesis and evaluation of novel catechol based anchors for surface modification. The anachelin chromophore, the catecholate fragment of the siderophore anachelin from the cyanobacterium Anabaena cylindrica, allows for th ...

Springer Netherlands2009

Study of a Swiss dopa-responsive dystonia family with a deletion in GCH1 - Redefining DYT14 as DYT5

Objective: To report the study of a multigenerational Swiss family with dopa-responsive dystonia (DRD). ...

2008

Lentivirally delivered glial cell line-derived neurotrophic factor increases the number of striatal dopaminergic neurons in primate models of nigrostriatal degeneration

Patrick Aebischer, Nicole Déglon

The primate striatum contains tyrosine hydroxylase (TH)-immunoreactive (ir) neurons, the numbers of which are augmented after dopamine depletion. Glial cell line-derived neurotrophic factor (GDNF) strongly modulates the viability and phenotypic expression ...

2002

Neurodegeneration prevented by lentiviral vector delivery of GDNF in primate models of Parkinson's disease

Patrick Aebischer, Didier Trono, Nicole Déglon

Lentiviral delivery of glial cell line-derived neurotrophic factor (lenti-GDNF) was tested for its trophic effects upon degenerating nigrostriatal neurons in nonhuman primate models of Parkinson's disease (PD). We injected lenti-GDNF into the striatum and ...

American Association for the Advancement of Science2000