نتایج جستجو برای: metabolite
تعداد نتایج: 63477 فیلتر نتایج به سال:
BACKGROUND This investigation was undertaken to identify the structure of a novel immunoreactive metabolite derived from fosphenytoin that has been hypothesized previously as present in sera from renally impaired patients receiving this prodrug. METHODS The metabolite was isolated from uremic sera using solid-phase extraction and HPLC. Structural analysis was performed using HPLC-tandem mass ...
In this study, the initial propagation of metabolic perturbation in Escherichia coli was visualized to understand the dynamic characteristics of the metabolic pathways without the association of transcription alterations. E. coli cells were exposed to the sudden relief of glucose starvation, and time-dependent variances in metabolite balances were traced in the second scale. The acquired time-c...
An aldehyde metabolite of amodiaquine and desethylamodiaquine has been identified. The aldehyde was the major metabolite formed in incubations with two recombinantly expressed human cytochromes P450 (rP450s), namely, CYP1A1 and CYP1B1. The aldehyde metabolite was also formed, to a lesser extent, in both human and rat liver microsomes. When comparing results from incubations with liver microsome...
INTRODUCTION Despite the decades long use of [11C]palmitate positron emission tomography (PET)/computed tomography in basic metabolism studies, only personal communications regarding dosimetry and biodistribution data have been published. METHODS Dosimetry and biodistribution studies were performed in 2 pigs and 2 healthy volunteers by whole-body [11C]palmitate PET scans. Metabolite studies w...
Image reconstruction for magnetic resonance spectroscopic imaging (MRSI) requires specialized spatial and spectral data processing methods and benefits from the use of several sources of prior information that are not commonly available, including MRI-derived tissue segmentation, morphological analysis and spectral characteristics of the observed metabolites. In addition, incorporating informat...
Stallknecht, Bente, Joop Madsen, Henrik Galbo, and Jens Bülow. Evaluation of the microdialysis technique in the dog fat pad. Am. J. Physiol. 276 (Endocrinol. Metab. 39): E588–E595, 1999.—In the present study the microdialysis technique was evaluated in an isolated autoperfused dog fat pad. Concentrations of glucose, lactate, and glycerol were measured in interstitial fluid by microdialysis and ...
Although there is some evidence supporting the existence of an association between prenatal maternal or postnatal child's urine phthalate metabolite concentrations and poor attentional performances, the interaction between urine phthalate metabolite levels and genetic variation for neuropsychological deficit of attention-deficit hyperactivity disorder (ADHD) has not been examined. The aim of th...
Understanding the dynamics of physiological process in the systems biology era requires approaches at the genome, transcriptome, proteome, and metabolome levels. In this context, metabolite flux experiments have been used in mapping metabolite pathways and analysing metabolic control. In the present review, sulphur metabolism was taken to illustrate current challenges of metabolic flux analyses...
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