Taurine deficiency is a cause of vigabatrin-induced retinal phototoxicity

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The Vigabatrin Induced Retinal Toxicity is Associated with Photopic Exposure and Taurine Deficiency: An In Vivo Study.

BACKGROUND/AIMS Retinal toxicity is one of the most commonly discussed and concerning adverse effects of vigabatrin (VGB). The present study explored the relationship between the VGB elicited retinal toxicity, photopic exposure, and taurine deficiency, aiming at screening for risk factors to minimize the adverse effects of VGB. METHODS The effects of VGB on function and morphology of mouse re...

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Vigabatrin-Induced Retinal Toxicity Is Partially Mediated by Signaling in Rod and Cone Photoreceptors

Vigabatrin (VGB) is a commonly prescribed antiepileptic drug designed to inhibit GABA-transaminase, effectively halting seizures. Unfortunately, VGB treatment is also associated with the highest frequencies of peripheral visual field constriction of any of the antiepileptic drugs and the mechanisms that lead to these visual field defects are uncertain. Recent studies have demonstrated light exp...

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Taurine: retinal function.

The status and potential functions of taurine in the retina have been reviewed. Taurine is present in high concentrations in the retina of all species tested, while the retinal concentrations of the enzymes necessary to synthesize taurine are presumed to vary among those species. The documented low activity of cysteinesulfinic acid decarboxylase, a key enzyme in taurine biosynthesis, in the liv...

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Is Molybdenum Deficiency the Cause?

Sulfur dioxide and other so-called sulfiting agents as additives in foods and drugs may cause severe allergic reactions in susceptible individuals, especially asthmatics. The most widely used chemical preservatives, they have become a subject of increasing concern since 1976. The issue was recently brought to national attention by a CBS "60 Minutes" report on sulfite sensitivity aired twice in ...

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Atrophic Cardiac Remodeling Induced by Taurine Deficiency in Wistar Rats

INTRODUCTION Micronutrient deficiency is observed in heart failure patients. Taurine, for example, represents 50% of total free amino acids in the heart, and in vivo studies have linked taurine deficiency with cardiomyopathy. METHODS Thirty-four male Wistar rats (body weight = 100 g) were weighed and randomly assigned to one of two groups: Control (C) or taurine-deficient (T (-)). Beta-alanin...

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ژورنال

عنوان ژورنال: Annals of Neurology

سال: 2009

ISSN: 0364-5134,1531-8249

DOI: 10.1002/ana.21526