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Fragile X mental retardation is caused by the absence of the FMRP (fragile X mental retardation protein) a RNA-binding protein encoded by the Fmr1 gene. Despite the large number of studies about this syndrome, it is still unclear how the absence of FMRP affects the physiology of the nervous system. It has been reported however that the brain of the Fmr1-KO mouse shows altered membrane protein and lipid oxidation. There is also indirect evidence that FMRP may be involved in a negative feedback mechanism with metabotropic glutamate receptors (mGluRs). In this article, we will discuss several lines of evidences which tend to prove that the lipoxygenase pathway might be the missing link between FMRP and mGluRs. Copyright © 2012 Elsevier Ltd. All rights reserved.


Marc-Alexandre Beaulieu. Linking the Fragile X mental retardation protein to the lipoxygenase pathway. Medical hypotheses. 2013 Mar;80(3):289-91

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PMID: 23313071

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