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Could thiazolidinediones increase the risk of heart failure in Friedreich's ataxia patients?

✍ Scribed by José L. García-Giménez; Fabián Sanchis-Gomar; Federico V. Pallardó

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
142 KB
Volume
26
Category
Article
ISSN
0885-3185

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✦ Synopsis

Clinical evidence and the recent decisions of the European Medicines Agency and the Food and Drug Administration challenge the safety of thiazolidinediones treatment. Recently, this treatment has been suggested for Friedreich's ataxia because thiazolidinediones improve neurological symptoms. Hypertrophic cardiomyopathy is the most prevalent cardiac feature and the cause of premature death in Friedreich's ataxia patients. We recommend that therapy with peroxisome proliferator-activated receptor-gamma agonists like thiazolidinediones be taken with caution, as they cause a decrease in the number of fast fibers and an increase in mitochondrial biogenesis in cardiac muscle because of the induction of peroxisome proliferator-activated receptor-gamma coactivator-1α. Furthermore, the incidence of heart failure may increase when thiazolidinediones are combined with insulin, and moreover, they produce cyclooxygenase 2 inhibition, inducing a thrombotic response. Thus, patients are predisposed to adverse cardiovascular outcomes. In our opinion, the possible fatal consequences must be taken into account when peroxisome proliferator-activated receptor-gamma agonist drugs are considered as possible therapeutic agents for Friedreich's ataxia patients.

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