Results 41 to 50 of about 19,595 (226)

Peripheral tryptophan and serotonin and kynurenine pathways in major depression: A case-control study

open access: yesEuropean Psychiatry, 2021
Introduction The tryptophan pathway along with its two branches of metabolism to serotonin and kynurenine seems to be affected in major depression.
R. Colle   +4 more
doaj   +1 more source

Presynaptic adenosine receptor-mediated regulation of diverse thalamocortical short-term plasticity in the mouse whisker pathway [PDF]

open access: yes, 2016
Short-term synaptic plasticity (STP) sets the sensitivity of a synapse to incoming activity and determines the temporal patterns that it best transmits.
Abbott   +90 more
core   +2 more sources

Novel Activity of Oral Hypoglycemic Agents Linked with Decreased Formation of Tryptophan Metabolite, Kynurenic Acid

open access: yesLife
Kynurenic acid is a tryptophan (Trp) metabolite formed along the kynurenine (KYN) pathway in the brain and in peripheral tissues. The disturbed formation of kynurenic acid, which targets glutamate-mediated neurotransmission, GPR35, and aryl hydrocarbon ...
Kinga Bednarz   +2 more
doaj   +1 more source

Inhibiting tryptophan metabolism enhances interferon therapy in kidney cancer. [PDF]

open access: yes, 2016
Renal cell carcinoma (RCC) is increasing in incidence, and a complete cure remains elusive. While immune-checkpoint antibodies are promising, interferon-based immunotherapy has been disappointing.
Abu Aboud, Omran   +13 more
core   +2 more sources

elPBN neurons regulate rVLM activity through elPBN-rVLM projections during activation of cardiac sympathetic afferent nerves. [PDF]

open access: yes, 2016
The external lateral parabrachial nucleus (elPBN) within the pons and rostral ventrolateral medulla (rVLM) contributes to central processing of excitatory cardiovascular reflexes during stimulation of cardiac sympathetic afferent nerves (CSAN).
Fu, Liang-Wu   +3 more
core   +1 more source

Tryptophan catabolites and depression in the general population: results from the Gutenberg Health Study

open access: yesBMC Psychiatry, 2023
Previous studies reported significantly altered tryptophan catabolite concentrations in major depression. Thus, tryptophan catabolites were considered as potential biomarkers of depression and their modulators as potential targets for ...
Matthias Michal   +13 more
doaj   +1 more source

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

open access: yes, 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

Kynurenic acid blocks chemogenic nociception

open access: yesJournal of Pharmacy and Pharmacology, 1990
Abstract Previous studies have suggested a role of excitatory amino acids (EAA) in nociception. In the present study the effects of two antagonists of EAA-receptors on capsaicin-induced eye wipings were investigated. Intracisternally administered kynurenic acid, in contrast to intravenously administered MK-801, was found to effectively ...
M, Hajós, G, Engberg
openaire   +2 more sources

Vagus Nerve Stimulation in Refractory Epilepsy: Effects on Pro- and Anti-Inflammatory Cytokines in Peripheral Blood [PDF]

open access: yes, 2010
Objective: The vagus nerve has important immunological functions that may be relevant for its anticonvulsive action. We postulate that this anticonvulsive action is activated by a shift in the immune system resulting in a reduction of neurotoxic and an ...
Berfelo, M. W.   +6 more
core   +2 more sources

Memantine and Kynurenic Acid: Current Neuropharmacological Aspects [PDF]

open access: yesCurrent Neuropharmacology, 2016
Glutamatergic neurotransmission, of special importance in the human brain, is implicated in key brain functions such as synaptic plasticity and memory. The excessive activation of N-methyl- D-aspartate (NMDA) receptors may result in excitotoxic neuronal damage; this process has been implicated in the pathomechanism of different neurodegenerative ...
Majláth Zsófia   +3 more
openaire   +4 more sources

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