Results 1 to 10 of about 4,698 (199)

The kynurenine and serotonin pathway, neopterin and biopterin in depressed children and adolescents: an impact of omega-3 fatty acids, and association with markers related to depressive disorder. A randomized, blinded, prospective study [PDF]

open access: yesFrontiers in Psychiatry
Depressive disorder is a severe mental condition. In addition to genetic factors, immunological-inflammatory factors, oxidative stress, and disturbances in neurotransmitter metabolism, kynurenine and serotonin pathways may play a role.
Lucia Ilavská   +7 more
doaj   +3 more sources

Usefulness of serum biopterin as a predictive biomarker for childhood asthma control: A prospective cohort study

open access: yesAllergology International, 2019
Background: Pteridines are metabolites of tetrahydrobiopterin, which serves as co-enzyme of nitric oxide synthase. We sought to investigate the usefulness of pteridines as biomarkers for childhood asthma control.
Saki Kasuga   +10 more
doaj   +2 more sources

A systematic review and meta-analysis of pteridines in mild cognitive impairment and Alzheimer’s disease [PDF]

open access: yesBMC Geriatrics
Background Alterations in specific pteridine metabolites, particularly neopterin, biopterin, and tetrahydrobiopterin have been reported in mild cognitive impairment, Alzheimer’s disease, and other types of dementia.
Arduino A. Mangoni, Angelo Zinellu
doaj   +2 more sources

Comparative metabolism of conjugated and unconjugated pterins in Crithidia, Leishmania and African trypanosomes. [PDF]

open access: yesPLoS Neglected Tropical Diseases
Mammalian cells synthesise tetrahydrobiopterin de novo, an essential cofactor for hydroxylation of aromatic amino acids, cleavage of ether lipids and the synthesis of nitric oxide.
Han B Ong, Susan Wyllie, Alan H Fairlamb
doaj   +2 more sources

Evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndrome [PDF]

open access: yesAcute and Critical Care, 2023
Background Coronary atherosclerosis is the leading cause of coronary artery disease. Several investigations have indicated that tear-sensitive plaques contain macrophages and T cells. Neopterin is an essential cellular immune response biomarker. The main
Ibrahim Kember   +4 more
doaj   +2 more sources

Concentrations of neopterin, biopterin, and cortisol associated with surgical castration of piglets with lidocaine

open access: yesCzech Journal of Animal Science, 2015
The effect of surgical castration with local anesthesia using lidocaine on neopterin, biopterin, and cortisol blood plasma concentrations in piglets was studied.
P. Maršálek   +3 more
doaj   +2 more sources

Dystonia and Biopterin Deficiency

open access: yesPediatric Neurology Briefs, 1988
Five patients with childhood dystonia associated with reduced CSF biopterin, responsive to levodopa, and characterized by diurnal and exertional variation are reported from the Developmental and Metabolic Neurology Branch, National Institute of ...
J Gordon Millichap
doaj   +3 more sources

Synthesis of biopterin and related pterin glycosides

open access: yesIUBMB Life, 2013
AbstractCertain pterins having a hydroxyalkyl side chain at C‐6 have been found as glycosidic forms in certain prokaryotes, such as 2′‐O‐(α‐D‐glucopyranosyl)biopterin from various kinds of cyanobacteria, and limipterin from a green sulfur photosynthetic bacterium.
Tadashi, Hanaya, Hiroshi, Yamamoto
openaire   +3 more sources

Tetrahydrobiopterin, responsive, hyperphenylalaninemia without biopterin defiCIency

open access: yesPteridines, 2000
Hyperphenylalaninemia (HPA) results from a deficiency of the enzyme phenylalanine hydroxylase (PAH) or of its cofactor, tetrahydrobiopterin (BH4). In 1999, Kure et al reported that some patients with PAH deficiency showed lowering of blood Phe levels after BH4 loading (1). We found several patients with HPA whose serum phenylalanine levels decreased at
Shintaku Haruo   +3 more
doaj   +2 more sources

Peripheral biopterin and neopterin in schizophrenia and depression.

open access: yesPsychiatry Research, 2021
Increasing evidence points to a causal involvement of inflammation in the pathogenesis of neuropsychiatric disorders, including major depressive disorder (MDD) and schizophrenia (SZ).
F. Klaus   +7 more
semanticscholar   +1 more source

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