Results 61 to 70 of about 19,359 (226)

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

Altered Cerebrospinal Fluid Tryptophan–Kynurenine Pathway Metabolism in Multiple System Atrophy

open access: yesMovement Disorders, EarlyView.
Abstract Background Alterations in tryptophan–kynurenine (TRP‐KYN) metabolism, which is associated with neuroinflammation, remain unclear in multiple system atrophy (MSA). Objective The aim was to investigate cerebrospinal fluid (CSF) TRP metabolites in MSA and their associations with other biomarkers.
Ryunosuke Nagao   +8 more
wiley   +1 more source

Time of Day-Dependent Alterations in Hippocampal Kynurenic Acid, Glutamate, and GABA in Adult Rats Exposed to Elevated Kynurenic Acid During Neurodevelopment

open access: yesFrontiers in Psychiatry, 2021
Hypofunction of glutamatergic signaling is causally linked to neurodevelopmental disorders, including psychotic disorders like schizophrenia and bipolar disorder.
Courtney J. Wright   +5 more
doaj   +1 more source

Tapinarof as a Therapeutic Aryl Hydrocarbon Receptor‐Modulating Agent in the Treatment of Atopic Dermatitis

open access: yesThe Journal of Dermatology, EarlyView.
ABSTRACT Atopic dermatitis (AD) is a chronic inflammatory dermatitis underpinned by Type 2 inflammation driven by cytokines such as IL‐4 and IL‐13. It is characterized by skin barrier dysfunction, Th2 immune deviation, and pruritus. While biologics and oral Janus kinase (JAK) inhibitors demonstrate high therapeutic efficacy by targeting cytokines that ...
Gaku Tsuji   +7 more
wiley   +1 more source

Nicotinic α7 acetylcholine receptor-mediated currents are not modulated by the tryptophan metabolite kynurenic acid in adult hippocampal interneurons [PDF]

open access: yes, 2011
The  tryptophan  metabolite,  kynurenic  acid (KYNA),  is  classically  known  to  be  an antagonist  of ionotropic glutamate receptors.
Andrew L. Varnell   +3 more
core   +3 more sources

Kaempferol Protects Intestinal Health in Chinese Forest Musk Deer Possibly by Regulating Intestinal Microbiota and Inhibiting the NF‐κB/NLRP3 Signaling Pathway

open access: yesIntegrative Zoology, EarlyView.
Kaempferol modulates the tryptophan metabolism pathway by increasing the abundances of Christensenellaceae R7 group, Bacteroides, and Blautia and reducing that of Rikenellaceae RC9 gut group, thereby significantly increasing the levels of ILA and IAA. This process inhibits the activation of NF‐κB/NLRP3 signaling pathway, reduces pro‐inflammatory factor
Xiangyu Liu   +3 more
wiley   +1 more source

Age-related increase of kynurenic acid in human cerebrospinal fluid-IgG and beta(2)-microglobulin changes [PDF]

open access: yes, 2005
Kynurenic acid (KYNA) is an endogenous metabolite in the kynurenine pathway of tryptophan degradation and is an antagonist at the glycine site of the N-methyl-D-aspartate as well as at the alpha 7 nicotinic cholinergic receptors. In the brain tissue KYNA
Baran, H   +5 more
core  

Does the type of exercise affect tryptophan catabolism in horses?

open access: yesAnimal, 2021
Tryptophan (Trp) is an essential amino acid which metabolises via the kynurenine pathway to generate a number of bioactive substances referred to as kynurenines.
W. Kędzierski   +4 more
doaj   +1 more source

Human IDO2 exhibits unique binding affinities distinct to those of human IDO1

open access: yesThe FEBS Journal, EarlyView.
Although indoleamine 2,3‐dioxygenase 2 (IDO2) is highly homologous to IDO1, it displays markedly lower catalytic activity. We found that IDO2 binds L‐tryptophan (L‐Trp) in a flipped orientation stabilized by the IDO2‐specific residue His143. Replacement of His143 with the IDO1‐equivalent tyrosine restored an IDO1‐like binding mode and increased ...
Shunsuke Nogi   +8 more
wiley   +1 more source

Untargeted metabolomics of colonic digests reveals kynurenine pathway metabolites, dityrosine and 3-dehydroxycarnitine as red versus white meat discriminating metabolites [PDF]

open access: yes, 2016
Epidemiological research has demonstrated that the consumption of red meat is an important risk factor for the development of colorectal cancer (CRC), diabetes mellitus and cardiovascular diseases.
De Smet, S.   +5 more
core   +2 more sources

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