6 tulemused
Picolinic, kynurenic, xanthurenic and anthranilic acids are metabolites of L-kynurenine which, when administered intraperitoneally (i.p.) antagonized (in descending order of potency) the seizures induced by intracerebroventricular (i.c.v.) injections of l-kynurenine sulfate in SHR and C57BL/6 mice.
Adult male and female albino mice (SHR strain) responded to sound by locomotor excitement (73-81%), running fits (33-47%), clonic convulsions (15-25%), tonic extension (10-22%) and lethality (7-17%). Intraperitoneal injection of metabolites of tryptophan on the kynurenine pathway (Kynurenines): DL-
Measurements were made of urinary tryptophan metabolites of 13 tuberculosis patients in order to reveal characteristics of pyridoxine-dependent metabolism before and during cycloserine treatment. The abnormally high level of xanthurenic acid excretion in untreated patients suggests a decreased
In experiments on mice the existence of common mechanisms of action was revealed in picrotoxin and kynurenine and quinolinic acid. Picrotoxin selectively potentiated convulsions induced by kynurenine and quinolinic acid and the antagonists of these endogenous convulsants--picolinic, kynurenic and
Autism spectrum disorder (ASD) is still diagnosed through behavioral observation, due to a lack of laboratory biomarkers, which could greatly aid clinicians in providing earlier and more reliable diagnoses. Metabolomics on human biofluids provides a sensitive tool to identify metabolite profiles
OBJECTIVE
Several preclinical studies have demonstrated the unique profiles of levetiracetam (LEV), inhibits spontaneous absence epilepsy models but does not affect traditional convulsion models; however, the detailed pharmacological mechanisms of action of LEV remain to be clarified.
METHODS
We