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The effects of ketamine on cerebral blood flow (CBF), cerebral metabolic rate ( CMRO2) and intracranial pressure (ICP) were evaluated in ventilated or

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Duncan GE, Leipzig JN, Mailman RB, Lieberman JA (1998) Differential effects of clozapine and haloperidol on ketamine-induced brain metabolic activation.

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The identification of the enzymes responsible for ketamine metabolism is of great importance in clinical practice. Yanagihara et al investigated

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In medial vestibular nuclei, metabolic levels were undistinguishable from controls . These results suggest different concentration-dependent actions of ketamine

Effects of Ketamine on Anterior Cingulate Glutamate Metabolism in Healthy Humans: A 4-T Proton MRS Study. Laura M. Rowland, Ph.D.; Juan

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of disposition, metabolism and excretion (ADME) are understood, it is safety Ketamine. Bi See under Anesthetics. C. 10-30 mg/kg BW IM, IV (Kinsell, 1986). F

Ketamine Effects on Local Cerebral Blood Flow and Metabolism in the Rat. Milena Cavazzuti1, Carlo A. Porro1,*, Gian Paolo Biral1,*, Carlo Benassi1,* and Gian

If drug metabolism is slowed by hypothermia, a prolonged recovery from The combination of ketamine and xylazine should be avoided in kittens, for the

Effects of ketamine on anterior cingulate glutamate metabolism in healthy humans: a 4-T proton MRS study. lrowland@mprc.umaryland.edu OBJECTIVE: The

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(1)H-[(13)C]-Nuclear Magnetic Resonance Spectroscopy Measures of Ketamine's Effect on Amino Acid Neurotransmitter Metabolism.

Differential effects of S-ketamine and R-ketamine on psychopathology and brain energy metabolism measured by FDG-PET in humans

Ketamine and isoflurane are agents commonly used to induce and maintain K. Hashimoto, “Effects of intravenous anesthetics on function and metabolism in

Effect of etomidate on hepatic drug metabolism in humans. Atiba JO In vivo studies were conducted using ketamine and antipyrine as substrates. Evaluation of

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The topic [The effect of total intravenous anesthesia with S-(+)-ketamine/propofol on hemodynamic, endocrine and metabolic stress reactions in comparison to

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In part II, the effects of ketamine on glucose metabolism (rGMR) using [18F]FDG as the radioligand were assessed. Ten subjects underwent two PET sessions on

Keywords: NMDA receptor, dopamine, neurotransmitter metabolism, amphetamine, clinical trial phase II /III /IV, ketamine, clinical research, human subject, single

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Background and objective: The aim of this study was to investigate the effect of ketamine on the endocrine and lipid metabolic status of the renal-banded

Objective:To improve an analysis method for ketamine and norketamine and study the distribution and metabolism of ketamine in hair of guinea pigs.Methods: A

Protein calorie malnutrition produces a significant and stereoselective decrease in ketamine metabolism (8). Similarly environmental factors (smoking, alcohol

Plasma Chemistry: Fasted Plasma Chemistry (Ketamine / Xylazine) - significant parameters. Fasted Plasma Chemistry Metabolic Panel (week 15) [Mice were fed

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There was substantial metabolism to norketamine for both routes. The mean norketamine/ketamine area under the plasma concentration-time curve from

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Norketamine, with 20-30% of the activity of ketamine, is hydroxlyated to hydoxynorketamine, conjugated with glucuronate and excreted in the urine. Norketamine

This is the predominant mechanism for ketamine-induced anesthesia. The reported effects of ketamine on CBF and metabolism are

Background and objective: This study was conducted to determine the effect of ketamine on metabolic homoeostasis and particularly in lipoprotein lipase (LPL)

Comparison of Etomidate, Ketamine, Midazolam, Propofol, and Thiopental on Function and Metabolism of. Isolated Hearts. David F. Stowe, MD, PhD, Zeljko J.

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Animal experiments have demonstrated neuroprotection by ketamine. However, because of its propensity to increase cerebral blood flow, metabolism, and

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Metabolism. Ketamine is metabolized by hepatic microsomal enzymes. The major pathway involves N-demethylation to form norketamine (metabolite I), which is

2 Drug metabolism in vivo (as monitored by ketamine- or pentobarbitone-induced sleeping times) was not affected by the inflammatory disease. However

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cose uptake shows that ketamine, administered in anesthetic doses, alters the pattern of metabolic activity in rat hippocampus. The labeled metabolic marker

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Enantioselective CE analysis of hepatic ketamine metabolism in different species in vitro. A. Schmitz, W. Thormann, L. Moessner, R. Theurillat, K. Helmja and M.

The identification of the enzymes responsible for ketamine metabolism is of great Yanagihara et al investigated the metabolism of ketamine in human liver

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(2004); Tissue uptake of ketamine and norketamine enantiomers in the rat: indirect evidence for extrahepatic metabolic inversion. Edwards, S.R., Mather, L.E.

Title, The kinetics of ketamine metabolism and its phase Ⅱ metabolites in urine samples. Date of Defense, 2006-07-10. Page Count, 129

concerning the administration of small oral doses of ketamine being found to be

The data suggest that demethylation of ketamine followed by hydroxylation of norketamine at the cyclohexanone ring is the major metabolic pathway in equine

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Drugs that interact with CYP34A have the potential to affect ketamine metabolism (e.g. azole antifungals, macrolide antibacterials, HIV protease inhibitors, and

Distribution in the brain and metabolism of ketamine in the rat

Metabolism: the liver microsomal enzyme system metabolizes ketamine (Ketalar) involving hydroxylation and demethylation. The principal metabolite is

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3. 2. EMOTIONAL PROCESSING AND BRAIN METABOLISM AFTER PHARMACOLOGICAL STIMULATION WITH. KETAMINE. M. Scheidegger1,2, S. Grimm2,3,

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Ketamine-HCI as a Suitable Anesthetic for Endocrine, Metabolic, and Cardiovascular Studies in Macaca fascicularis Monkeys. M. I. Castro,; J. Rose1,; W. Green,

The aim of this study was to investigate the impact of ketamine on the metabolism and disposition of morphine by using the isolated perfused rat liver and rat

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Comparison of Etomidate, Ketamine, Midazolam, Propofol, and Thiopental on Function and Metabolism of Isolated Hearts. David F. Stowe, MD, PhD,; Zeljko J.

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Ketamine affects gene expression of key molecules of brain glucose metabolism involved in homeostatic response to neurotoxicity: Is there a molecular link

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ketamine leads to hepatic enzyme induction and enhanced ketamine metabolism 1,2. ➢ Ketamine also appears to have an antidepressant effect in patients with

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ministration of subanesthetic doses of ketamine. Results: Ketamine produced focal increases in metabolic activity in the prefrontal cortex and an acute psychotic

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Human Clinical Ketamine Response Correlates with Glutamine Metabolism. 1. Pain: complex regional pain, migraine, diabetic neuropathy. (ketamine IV/IN/PO)

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To investigate cytochrome P450 (CYP) enzymes involved in metabolism of racemic and S-ketamine in various species and to evaluate metabolic interactions of

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Ketamine - Stereoselective pharmacokinetic modeling and Cytochrome P450 Enzyme (CYP) -dependent metabolism in vitro - a comparison between species

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Conclusions and Clinical Relevance—Enzymes of the CYP 3A4 family and orthologs of CYP 2C9 were involved in ketamine metabolism in

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Nor-ketamine is the primary active metabolite of ketamine. It is one third as potent as ketamine. Due to high first pass hepatic metabolism, serum nor-ketamine

Comparison of brain metabolic activity patterns induced by ketamine, MK-801 and amphetamine in rats: support for NMDA receptor involvement in responses to

Of these, Chang and Glazko (1974) reported that ketamine pretreatment did not influence the demethylation rate of drug metabolism and the liver weight in rats.

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Psychotomimetic doses of (S)-ketamine increased cerebral metabolic rates of glucose (CMRglu) markedly in the frontal cortex including the

In clinically healthy horses both inhalation anaesthesia and propofol-ketamine anaesthesia were associated with an anaerobic metabolic

Martin LL. Ketamine inhibits serotonin synthesis and metabolism in vivo. Neuropharmacology 21:119 (1982)

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Journal of Cerebral Blood Flow & Metabolism (2005) 25, S365. Quantitation of ketamine induced changes of rCBF. Hans R Herzog1, Holger

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Correlation of regional brain metabolism with receptor localization during ketamine anesthesia: Combined autoradiographic. 2-[3Hldeoxy-D-glucose receptor

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It is concluded that ketamine is a cerebral vasodilator without cerebral metabolic effect when mean arterial blood pressure and arterial PCO2, PO2, and pH are

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Ketamine is a dissociative anesthetic that produces a dreamy tranquility and prevents their metabolism by inhibiting monoamine oxidase.

In rat liver microsomes, norketamine, hydroxynorketamine, and hydroxyketamine account for 80%, 15% and 5%, respectively, of ketamine metabolism (fig.

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Clinical trial: The Effect of Perioperative Ketamine on Acute and and/or metabolism of opioid and NSAIDs on analgesic consumption and

The effect of a pharmacological ketamine challenge on working memory and brain metabolism. The effect of a pharmacological. M Scheidegger, H Boeker,

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Enantioselective CE analysis of hepatic ketamine metabolism in different species in vitro. Schmitz A, Thormann W, Moessner L, Theurillat R, Helmja K, Mevissen

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Ketamine is metabolized by cytochrome P450 (CYP) leading to production of pharmacologically active products and contributing to drug excretion. We identified

Therefore, we evaluated the effect of two common anesthetic agents, isoflurane and ketamine, on capecitabine liver metabolism in C57BL/6J mice using 19F

Cytochrome P450 enzymes involved in ketamine metabolism: an inhibition study using liver microsomes and single CYPs from different species. Front Cover

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The dramatic blockade by clozapine of ketamine-induced brain metabolic activation suggests that antagonism of the consequences of reduced NMDA receptor

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ketamine, metabolism was rapid and both the demethylation and subsequent oxidation metabolites were detected. In the urine the second metabolite appeared

The liver is also central in lipid metabolism with cholesterol and triglycerides of halothane, fentanyl, ketamine, lignocaine, pancuronium and propranolol.

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very low during emergence from ketamine-induced an- esthesia.' Ketamine undergoes extensive metabolism by hepatic enzymes, yielding mainly the product of

cortical circuits. The ketamine-induced shift in the laminar focus of sensory cortical metabolism may reflect a functional disconnection from peripheral sensory

Qi X. Inhibition of morphine metabolism by ketamine. Drug Metab Dispos 38:728 (2010)

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In both striatum and cortex, 10 min of ischaemia reduced tissue metabolic activity by around a third (striatum: P<0.01, cortex: P<0.001). Racemic ketamine

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Flow and Metabolism in Rabbits. Ruth E. Oren, Nada A. Rasool, and Eduardo H. Rubinstein. The effects of intravenous ketamine (1 mg/kg) on cerebral cortical

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CYP2B6, CYP3A4 and CYP2C9 play a relevant role in the metabolism of ketamine. The enzymes involved in the metabolism of thiopental and etomidate

Background: Animal studies have demonstrated neuroprotec- tive properties of S -ketamine, but its effects on cerebral blood flow (CBF), metabolic rate of oxygen

Then these cells were reperfused with normal media or ketamine (0.1 mM) Astrocytes/metabolism · Astrocytoma/drug therapy* · Astrocytoma/pathology · Brain/

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Effect of Nimodipine, Phenylephrine, Pentobarbital, and Ketamine on Cerebral Energy Metabolism in Cerebral Air Embolized Cats: in vivo “P Nuclear Magnetic

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Metabolism of ketamine to its N-demethylated metabolite by liver homogenates in vitro was more rapid when the livers were obtained from ketamine pretreated

Human neurometabolic imaging studies using the NMDAR antagonist ketamine subsequently demonstrated marked brain metabolic

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ketamine metabolism may be slower in test groups in comparison to the control group. Reduction in the volume of distribution of ketamine increases anesthetic

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Phase 1 metabolism of ketamine and other analgesics in vitro. Zusatztitel: drug- drug interactions and species differences; Jahr: 2008; Art: Diss. Autor/en

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Title, INFLUENCE OF KETAMINE, PHENYLCYCLIDINE, AND PHENOBARBITAL ON CHOLESTEROL-METABOLISM IN RATS. Source, PROCEEDINGS OF

Nevertheless, metabolism and pharmacokinetics of ketamine have not been characterized sufficiently in most animal species. An enantioselective .

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OBJECTIVE: To investigate cytochrome P450 (CYP) enzymes involved in metabolism of racemic and S-ketamine in various species and to evaluate metabolic

cocaine and ketamine in Sprague-Dawley male rats was associated with an enhancement of cocaine metabolism with an increase in plasma concentrations

Ketamine as a probe for medetomidine stereoisomer inhibition of human liver human cytochrome P-450-mediated microsomal metabolism, using ketamine as

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Cadmium potentiated ketamine-induced sleeping time. It is possible that cadmium may inhibit the metabolism of ketamine in vivo and decreases the elimination

(Endocrinol. Metab. 20): E379-E384,. 1989.-The effects of ketamine and fentanyl on serotonin (5-hydroxytryptamine;. 5-. HT) metabolism, angiotensin-converting

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tivity and possible changes in metabolism elicited by the drug. However, while the cerebral vasodilator ef- fect of ketamine is generally supported, its cerebral

In the rat, ketamine is metabolized by the hepatic microsomal enzymatic systems and its major metabolite is the N-demethylated product, which shows less CNS

mourior1@otenet.gr BACKGROUND AND OBJECTIVE: This study was conducted to determine the effect of ketamine on metabolic homoeostasis and

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Drugs that interact with CYP34A have the potential to affect ketamine metabolism (e.g. azole antifungals, macrolide antibiotics, HIV protease inhibitors, and

OBJECTIVE: To study the effects of nimodipin and ketamine on cerebral blood flow and metabolism in rabbits with global ischemic reperfusion. METHODS: The

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Inhibition of cytochrome P450 enzymes involved in ketamine metabolism by use of liver microsomes and specific cytochrome P450 enzymes from horses, dogs,

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It is because of this higher base rate of metabolism that ketamine causes over- excitement in rats at doses below those at which it activates shutdown systems.”

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Objective To study the effects of nimodipin and ketamine on cerebral blood flow and metabolism in rabbits with global ischemic reperfusion.

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J Can Assoc Radiol. 1969;20:155-156. 73. Takeshita H, Okuda Y, Sari A. The effects of ketamine on cerebral circulation and metabolism in man. Anesthesiology.

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Metabolism of ketamine stereoisomers by human liver microsomes. Kharasch ED , Labroo R. Department of Anesthesiology, University of Washington, Seattle

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Ketamine is also a potent analgesic at subanesthetic doses (2). Ketamine undergoes an extensive liver metabolism by CYP-450 N-demethylation to

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Irifune M. Effects of ketamine on dopamine metabolism during anesthesia in discrete brain regions in mice: comparison with the effects during the recovery and

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posted to time system-metabolism-physiopathology semantics an fMRI study using the NMDA antagonist ketamine in healthy human subjects

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However, all anesthetics do not suppress global cerebral metabolism and cause a regionally specific effect on thalamic activity. Ketamine, a so-called

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Cerebral ischemia-reperfusion model was established in rabbits with the 4-artery -obstruction method.The changes of excitatory amino acid(EAA)transmitters

Emotional processing and brain metabolism after pharmacological stimulation with ketamine: Implications for major depression. Emotional processing and brain

February 23, 2012

The pretreatment of rats with phenobarbital caused a 5-fold increase in the rate of ketamine metabolism by hepatic tissue in vitro, whereas SKF 525-A

Ketamine Metabolism: Identification and Synthesis of a. Deaminated Product. ISAAC LAI, SUK-CHANG HONG, AND JOHN N. DAVISSON'. Received January 17

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BioInfoBank Library :: Metabolism of ketamine stereoisomers by human liver Enantioselective CE analysis of hepatic ketamine metabolism in different species

December 13, 2011

Ketamine metabolism: identification and synthesis of a deaminated product. Lai, I ; Hong, S C; Davisson, J N;. During attempts to synthesize


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