arachidonate/seizures

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Free fatty acid and diacylglycerol accumulation in the rat brain during recurrent seizures is related to cortical oxygenation.

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Cerebral blood flow and oxygenation increase during the early seizures of a series, but the increase in cerebral blood flow attenuates during late seizures, sometimes resulting in decreased cortical oxygenation. Cortical free fatty acids (FFA) and diacylglycerols also increase during early seizures

Potential role of polyunsaturates in seizure protection achieved with the ketogenic diet.

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Epilepsy is a serious neurological disease that responds to two very different treatments involving lipids. Clinically, it responds to a state of ketosis induced by a very high-fat 'ketogenic' diet. Experimentally, in vitro and in vivo models demonstrate that injection or infusion of free

Evidence for membrane remodeling in ipsilateral thalamus and amygdala following left amygdala-kindled seizures in awake rats.

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We examined regional cerebral metabolic rates for glucose (rCMRglc) and brain incorporation coefficients (k*) of each of three intravenously infused fatty acid radiotracers, [9,10-(3H)]palmitate ([3H]PAM), [1-(14C)]arachidonate ([14C]AA) and [1-(14C)]docosahe-xaenoate ([14C]DHA), in awake rats fully

Effects of acute hypoxia on incorporation of [1-14C]arachidonic into glycerolipids of rat brain.

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The effects of 1 min of acute hypoxic treatment (1% O2 in N2) on incorporation of [1-14C]arachidonic acid into brain lipids of 16-day-old rats were investigated at 3, 6, and 12 min after intracerebral injection of the labeled fatty acid. The hypoxic-hypoxia condition associated with convulsive

Cyclooxygenase-2, Bcl-2, and chromosome 1p analysis in protoplasmic astrocytomas.

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Protoplasmic astrocytomas are rare gliomas whose nosology remains enigmatic. This study retrospectively reviews the clinicopathologic features of eight tumors, including evaluation of these neoplasms for chromosome 1p loss, Bcl-2 immunoreactivity, and cyclooxygenase-2 immunoreactivity. Patients

Asymmetry of diacylglycerol metabolism in rat cerebral hemispheres.

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Diacylglycerols (DGs) were found to be asymmetrically distributed between the two cerebral hemispheres of rat brain. The left cerebral hemisphere (LCH) contained 100% more DG than the right cerebral hemisphere (RCH). The lateralization was enhanced in animals subjected to depolarization induced by a

Diacylglycerol kinase epsilon modulates rapid kindling epileptogenesis.

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OBJECTIVE Diacylglycerol kinase epsilon (DGKepsilon) regulates seizure susceptibility and long-term potentiation through arachidonoyl-inositol lipid signaling. We studied the significance of arachidonoyl-diacylglycerol (20:4 DAG) in epileptogenesis in DGKepsilon-deficient mice undergoing rapid

Lipid and fatty acid profiles in rats consuming different high-fat ketogenic diets.

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High-fat ketogenic diets are used to treat intractable seizures in children, but little is known of the mechanism by which these diets work or whether fats rich in n-3 polyunsaturates might be beneficial. Tissue lipid and fatty acid profiles were determined in rats consuming very high fat (80

The effects of beraprost Na, a stable prostacyclin analog, on animal models of stroke.

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We evaluated the effects of beraprost Na (Sodium (+-)-(1R*,2R*, 3aS*,8bS*)-2,3,3a,8b-tetrahydro-2-hydroxy-1-[(E)-(3S*)-3- hyd roxy-4-methyl-1- octen-6-ynyl]-1H-cyclopenta[b]benzofuran-5-butylate, beraprost), a stable and orally active prostacyclin (PGI2) analog with potent antiplatelet and

Effects of drugs and fatty acids related to Reye syndrome on brain water content in rats.

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Brain water content was measured by gas-chromatography in rats following intraperitoneal injection of drugs and fatty acids related to the etiology of Reye syndrome. A statistically significant increase in brain water content was observed following injection of 5% glucose solution, valproic acid,

Elevated polyunsaturated fatty acids in blood serum obtained from children on the ketogenic diet.

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The authors analyzed blood metabolites in nine children with epilepsy prior to starting the ketogenic diet (KD) and 3 to 4 weeks after KD therapy. Elevated beta-hydroxybutyrate and cortisol levels were observed in all children on the KD. Free fatty acids increased 2.2-fold on the KD, with

Metabolism of polyunsaturated fatty acids and ketogenesis: an emerging connection.

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This paper summarizes the emerging literature indicating that at least two polyunsaturated fatty acids (PUFA; linoleate, alpha-linolenate) are moderately ketogenic and that via ketone bodies significant amounts of carbon are recycled from these fatty acids into de novo synthesis of lipids including

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