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The Neuroprotective Agent CNTF Decreases Neuronal Metabolites in the Rat Striatum: An $in\ Vivo$ Multimodal Magnetic Resonance Imaging Study

Abstract : Ciliary neurotrophic factor (CNTF) is neuroprotective against multiple pathologic conditions including metabolic impairment, but the mechanisms are still unclear. To delineate CNTF effects on brain energy homeostasis, we performed a multimodal imaging study, combining in vivo proton magnetic resonance spectroscopy, high-performance liquid chromatography analysis, and in situ glutamate imaging by chemical exchange saturation transfer. Unexpectedly, we found that CNTF expression through lentiviral gene transfer in the rat striatum significantly decreased the levels of neuronal metabolites (N-acetyl-aspartate, N-acetyl-aspartyl-glutamate, and glutamate). This preclinical study shows that CNTF remodels brain metabolism, and suggests that decreased levels of neuronal metabolites may occur in the absence of neuronal dysfunction.
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Maria-Angeles Carrillo-de Sauvage, Julien Flament, Yann Bramoullé, Lucile Haim, Martine Guillermier, et al.. The Neuroprotective Agent CNTF Decreases Neuronal Metabolites in the Rat Striatum: An $in\ Vivo$ Multimodal Magnetic Resonance Imaging Study. Journal of Cerebral Blood Flow and Metabolism, Nature Publishing Group, 2015, 35 (6), pp.917-921. ⟨10.1038/jcbfm.2015.48⟩. ⟨cea-02168367⟩

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