Results 41 to 50 of about 20,173 (272)

Distress Intolerance, Kynurenic Acid, and Schizophrenia [PDF]

open access: yesJAMA Psychiatry, 2014
We are all intuitively aware that when we are under stress, we think differently and often less well than when we are calmer. The study by Chiapelli et al1 in this issue of the journal addresses some of the critical links underlying the effects of stress on cognition.
openaire   +2 more sources

The gut-brain axis, BDNF, NMDA and CNS disorders [PDF]

open access: yes, 2016
Gastro-intestinal (GI) microbiota and the ‘gut-brain axis’ are proving to be increasingly relevant to early brain development and the emergence of psychiatric disorders.
Maqsood, Raeesah, Stone, Trevor W.
core   +1 more source

Ghrelin Decreases Firing Activity of Gonadotropin-Releasing Hormone (GnRH) Neurons in an Estrous Cycle and Endocannabinoid Signaling Dependent Manner. [PDF]

open access: yes, 2013
The orexigenic peptide, ghrelin is known to influence function of GnRH neurons, however, the direct effects of the hormone upon these neurons have not been explored, yet.
Farkas, Imre   +3 more
core   +5 more sources

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

Unexpected Dual Function of Plant YUCCA Enzymes Links Chlorophyll Catabolism to Auxin Homeostasis

open access: yesAngewandte Chemie, EarlyView.
YUCCA enzymes are well known to catalyze the main step of auxin biosynthesis in plants. Here, a hitherto undescribed dual function was discovered, revealing that some YUCCAs also act in chlorophyll degradation. In vitro feedback regulation furthermore suggests a link between chlorophyll degradation and hormone homeostasis and a physiological role of ...
Sina Rütschlin   +6 more
wiley   +2 more sources

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

The Role of Sarcosine, Uracil, and Kynurenic Acid Metabolism in Urine for Diagnosis and Progression Monitoring of Prostate Cancer

open access: yesMetabolites, 2017
The aim of this pilot study is to evaluate sarcosine, uracil, and kynurenic acid in urine as potential biomarkers in prostate cancer detection and progression monitoring. Sarcosine, uracil, and kynurenic acid were measured in urine samples of 32 prostate
Georgios Gkotsos   +6 more
doaj   +1 more source

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

Kynurenic Acid and Kynurenine Aminotransferase in Heart [PDF]

open access: yesPediatric Research, 1997
Kynurenic acid (KYNA) is a tryptophan metabolite and represents the only known endogenous compound acting as an antagonist to excitatory amino acid receptors in the mammalian CNS. Blocking of these receptors in CNS by KYNA affects cardiac function.
H, Baran, G, Amann, B, Lubec, G, Lubec
openaire   +2 more sources

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

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