Concept

Catechol-O-methyltransferase

Publications associées (12)

Interfacing aptamer-modified nanopipettes with neuronal media and ex vivo brain tissue

Nako Nakatsuka, Anna Burdina, Annina Stuber

Aptamer-functionalized biosensors exhibit high selectivity for monitoring neurotransmitters in complex environments. We translated nanoscale aptamer-modified nanopipette sensors to detect endogenous dopamine release in vitro and ex vivo. These sensors empl ...

2023

Dopamine Dynamics in Reward-based Learning

Jun Huang

Dopamine signals are thought to be important for reward-based learning and appear to play important roles in regulating synaptic plasticity in the nucleus accumbens and the striatum. However, the precise neuronal circuit mechanisms underlying the learning ...

EPFL2022

A Multiscale, Systems-Level, Neuropharmacological Model of Cortico-Basal Ganglia System for Arm Reaching Under Normal, Parkinsonian, and Levodopa Medication Conditions

Vignayanandam Ravindernath Muddapu

In order to understand the link between substantia nigra pars compacta (SNc) cell loss and Parkinson's disease (PD) symptoms, we developed a multiscale computational model that can replicate the symptoms at the behavioural level by incorporating the key ce ...

FRONTIERS MEDIA SA2022

Implantable aptamer–field-effect transistor neuroprobes for in vivo neurotransmitter monitoring

Nako Nakatsuka

While tools for monitoring in vivo electrophysiology have been extensively developed, neurochemical recording technologies remain limited. Nevertheless, chemical communication via neurotransmitters plays central roles in brain information processing. We de ...

2021

Lack of Enantioselectivity in the SULT1A3-catalyzed Sulfoconjugation of Normetanephrine Enantiomers: An In Vitro and Computational Study

Sandrine Gerber, Jean-Baptiste Gualtierotti

(1R)-Normetanephrine is the natural stereoisomeric substrate for sulfotransferase 1A3 (SULT1A3)-catalyzed sulfonation. Nothing appears known on the enantioselectivity of the reaction despite its potential significance in the metabolism of adrenergic amines ...

Wiley-Blackwell2013

Microengineered analytical tools for cell-based studies in environmental monitoring, pharmacology and neuroscience

Sara Talaei

Monitoring cells’ Tehavior in-vitro and evaluation of their response to different types of stimulations are the major oTjectives in cell-Tased studies. The results of these studies answer questions on the physiology of the cells, cell-to-cell signaling and ...

EPFL2013

Synthetic calibrators for the analysis of sulfoconjugated metanephrines in urine: hydrolysis conditions revisited

Sandrine Gerber, Jonathan Simonin

Background: The quantification of total (free + sulfated) metanephrines in urine is recommended to diagnose pheochromocytoma. Urinary metanephrines include metanephrine itself, normetanephrine and methoxytyramine, mainly in the form of sulfate conjugates ( ...

Elsevier2012

Entacapone and tolcapone, two catechol O-methyltransferase inhibitors, block fibril formation of alpha-synuclein and beta-amyloid and protect against amyloid-induced toxicity

Hilal Lashuel, Pierre-Alain Carrupt, Magdalena Zweckstetter, Saviana Di Giovanni, Simona Eleuteri

Parkinson disease (PD) is the second most common neurodegenerative disorder after Alzheimer disease (AD). There is considerable consensus that the increased production and/or aggregation of alpha-synuclein (alpha-syn) plays a central role in the pathogenes ...

American Society for Biochemistry and Molecular Biology2010

Genes, Brain Development and Psychiatric Phenotypes in Velo-Cardio-Facial Syndrome

Marie Schaer

Velo-cardio-facial syndrome (VCFS) has been in the focus of intensive research over the last 15 years. The syndrome represents a homogeneous model for studying the effect of a decreased dosage of genes on the development of brain structure and function and ...

2008

Mechanistic studies on the tyrosinase-catalyzed formation of the anachelin chromophore

Karl Gademann

The complex secondary metabolite anachelin, isolated from the freshwater cyanobacterium Anabaena cylindrica, is believed to act as siderophore, facilitating iron uptake. Its structure is characterized by a fascinating blend of polyketide, peptide, and alka ...

2005

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