Results 51 to 60 of about 19,359 (226)

Kynurenines in the Pathogenesis of Multiple Sclerosis: Therapeutic Perspectives

Cells, 2020
Over the past years, an increasing amount of evidence has emerged in support of the kynurenine pathway’s (KP) pivotal role in the pathogenesis of several neurodegenerative, psychiatric, vascular and autoimmune diseases.
Tamás Biernacki, Dániel Sandi, Krisztina Bencsik, László Vécsei   +3 more
doaj   +1 more source

Clinical relevance of depressed kynurenine pathway in episodic migraine patients: potential prognostic markers in the peripheral plasma during the interictal period

The Journal of Headache and Pain, 2021
Background Altered glutamatergic neurotransmission and neuropeptide levels play a central role in migraine pathomechanism. Previously, we confirmed that kynurenic acid, an endogenous glutamatergic antagonist, was able to decrease the expression of ...
Bernadett Tuka, Aliz Nyári, Edina Katalin Cseh, Tamás Körtési, Dániel Veréb, Ferenc Tömösi, Gábor Kecskeméti, Tamás Janáky, János Tajti, László Vécsei   +9 more
doaj   +1 more source

C–3 alkoxymethylation of 4-oxo-1,4-dihydroquinoline 2-carboxylic acid esters via organic additives

Heliyon
Esters of kynurenic acid, a known neuroprotective agent were reacted with cyclic amino acids to yield novel alkoxymethylated products under optimized reaction conditions.
Péter Simon, Bálint Lőrinczi, István Szatmári   +2 more
doaj   +1 more source

Extending Metabolomic Studies of Apis mellifera Venom: LC-MS-Based Targeted Analysis of Organic Acids

Toxins, 2019
Organic acids are important active small molecules present in venoms and toxins, which have not been fully explored yet. The aim of the study was the determination of organic acids in honeybee venom (HBV) samples by using liquid chromatography-tandem ...
Magdalena Pawlak, Agnieszka Klupczynska, Zenon J Kokot, Jan Matysiak   +3 more
doaj   +1 more source

Nanoscale Spatial Organization of ARC High‐ and Low‐Order Assemblies at Excitatory Synapses

Advanced Science, EarlyView.
ARC (Activity‐Regulated Cytoskeleton‐Associated protein) mediates synaptic plasticity by forming nanoscale assemblies in neurons. Using super‐resolution microscopy and time‐resolved anisotropy with targeted tagging, the study reveals low‐order ARC assemblies at synapses colocalizing with AMPARs, semi‐circular structures at endocytic zones, and 60–80 nm
Martina Damenti, Giovanna Coceano, Mariline Mendes Silva, Jonatan Alvelid, Chiara Sgattoni, Andrea Volpato, Lea Rems, Luciano A. Masullo, Eduard M. Unterauer, Rafal Kowalewski, Lucie Delemotte, Erdinc Sezgin, Ralf Jungmann, Ilaria Testa   +13 more
wiley   +1 more source

The pathophysiological roles of kynurenic acid and cytokines in psychiatric illness [PDF]

, 2011
Kynurenic acid is an astrocyte-derived tryptophan metabolite and a marker of neuroinflammation that antagonizes N-metyl-D-aspartate (NMDA) and α7 nicotinic acetylcholine receptors in the brain.
Olsson, Sara
core   +1 more source

Intestinal microbiome alterations in pediatric epilepsy: Implications for seizures and therapeutic approaches

Epilepsia Open, EarlyView.
Abstract The intestinal microbiome plays a pivotal role in maintaining host health through its involvement in gastrointestinal, immune, and central nervous system (CNS) functions. Recent evidence underscores the bidirectional communication between the microbiota, the gut, and the brain and the impact of this axis on neurological diseases, including ...
Teresa Ravizza, Greta Volpedo, Antonella Riva, Pasquale Striano, Annamaria Vezzani   +4 more
wiley   +1 more source

Chemotropic guidance facilitates axonal regeneration and synapse formation after spinal cord injury. [PDF]

, 2009
A principal objective of spinal cord injury (SCI) research is the restoration of axonal connectivity to denervated targets. We tested the hypothesis that chemotropic mechanisms would guide regenerating spinal cord axons to appropriate brainstem targets ...
Alto, Laura Taylor, Blesch, Armin, Conner, James M, Havton, Leif A, Hollis, Edmund R, Tuszynski, Mark H   +5 more
core   +2 more sources

Development of a translational inflammation panel for the quantification of cerebrospinal fluid Pterin, Tryptophan-Kynurenine and Nitric oxide pathway metabolites

EBioMedicine, 2022
Summary: Background: Neuroinflammatory diseases such as encephalitis, meningitis, multiple sclerosis and other neurological diseases with inflammatory components, have demonstrated a need for diagnostic biomarkers to define treatable and reversible ...
Jingya Yan, Velda X. Han, Benjamin Heng, Gilles J. Guillemin, Sushil Bandodkar, Russell C. Dale   +5 more
doaj   +1 more source

Ketogenic diet for infantile epileptic spasms

Epilepsia Open, EarlyView.
Abstract Approximately half of all cases of Infantile Epileptic Spasms Syndrome (IESS) do not respond to vigabatrin and hormonal therapies. There is no clear consensus as to the second‐line therapy for IESS. Ketogenic diet (KD) has emerged as an effective treatment for certain drug‐resistant epilepsies and in many cases of IESS.
Morris H. Scantlebury, Anamika Choudhary, Andy Cheuk‐Him Ng, Cezar Gavrilovici   +3 more
wiley   +1 more source