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From a virtual screening campaign, a number of artificial and natural sweeteners were predicted as potential anticonvulsant agents with protective effects in the seizure animal model Maximal Electroshock Seizure (MES) test. In all cases, the predictions were experimentally confirmed in the
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A virtual screening campaign based on application of a topological discriminant function capable of identifying novel anticonvulsant agents indicated several widely-used artificial sweeteners as potential anticonvulsant candidates. Acesulfame potassium, cyclamate and saccharin were tested in the
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Steviol glycosides are natural constituents of Stevia rebaudiana (Bert.) Bert. (Asteraceae) that have recently gained worldwide approval as nonnutritive sweeteners by the Joint Food and Agriculture Organization/World Organization Expert Committee on Food Additives. Cheminformatic tools suggested
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Screening for novel anticonvulsant drugs requires appropriate animal seizure models. Zebrafish provide small, accessible, and cost-efficient preclinical models applicable to high-throughput small molecule screening. Based on previous results in rodents, we have here examined the effects of
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The effects of excessive doses of phenylalanine on seizure susceptibility were examined in animal models in the past, primarily because of their relevance to phenylketonuria. It was thought that such effects might involve brain monoaminergic mechanisms. Recently, this issue has been pursued with a
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It has been hypothesized that the dietary sweetener aspartame (L-aspartyl-L-phenylalanine methyl ester) might promote seizures and this hypothesis has been argued in the published literature. The current manuscript reviews the biochemical, neurochemical and behavioral experiments that have been
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Seizure facilitation has been proposed as a possible adverse effect of dietary consumption of aspartame. The conversion of this sweetener to phenylalanine and aspartate in the gastrointestinal tract, and subsequent absorption, elevates plasma levels of these two amino acids. Absorbed phenylalanine
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Male rats were treated by oral intubation with tyrosine (Tyr), at doses of 0.5 and 1.0 g/kg body weight, alone or together with 1 g aspartame (APM)/kg body weight, or an equivalent dose of phenylalanine (Phe; 0.5 g/kg body weight); the effects on seizures induced by an effective dose of metrazol
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Concentrations of plasma amino acids and brain monoamines as well as pentylenetetrazol-induced seizures were monitored in CD-1 mice treated with aspartame in acute oral doses from 0 to 2500 mg/kg. One hour after administration aspartame produced increases in plasma concentrations of phenylalanine
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Oral administration of the artificial sweetener aspartame, 1 g/kg, or of an equimolar dose of its metabolite phenylalanine, to fasted rats 1 hour before slow i.v. infusion of theophylline until the onset of maximal seizures had no significant effect on the total dose and the serum and cerebrospinal
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The high intensity sweetener aspartame has been implicated anecdotally in seizure provocation. This possibility was investigated with a randomized, double-blind, placebo-controlled, cross-over study. After an extensive search, 18 individuals (16 adults and 2 children) who had seizures allegedly
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An association has recently been proposed between the incidence of seizures and prolonged consumption of the phenylalanine-containing artificial sweetener, aspartame. Since consumption of aspartame, unlike dietary protein, can elevate phenylalanine in brain, and thereby inhibit the synthesis and
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The safety of patients with epilepsy consuming sweetening agents, which is becoming increasingly prevalent for various reasons, is a topic that should be emphasized as sensitively as it is for other diseases. Patients with epilepsy consume sweetening agents for different reasons such being diabetic
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Over 20 years have elapsed since aspartame was approved by regulatory agencies as a sweetener and flavor enhancer. The safety of aspartame and its metabolic constituents was established through extensive toxicology studies in laboratory animals, using much greater doses than people could possibly
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The artificial sweetener aspartame (L-aspartyl-L-phenylalanyl-methyl ester), is consumed, primarily in beverages, by a very large number of Americans, causing significant elevations in plasma and, probably, brain phenylalanine levels. Anecdotal reports suggest that some people suffer neurologic or
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