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- W4380883912 abstract "Abstract Background DHA‐H (Hydroxy‐docosahexaenoic acid) is a molecule in development for Alzheimer’s disease (AD) treatment based on the concept of membrane lipid therapy (melitherapy). Once entered the cell, DHA‐H is metabolized via α‐oxidation to the fatty acid HPA (Heneicosapentaenoic acid). DHA‐H has been shown to reduce the amyloidogenic processing of Amyloid Precursor Protein (APP), as well as having a neuroprotective effect in cellular models. Although the mechanism of action of DHA‐H is not yet fully understood, results obtained in excitotoxicity models and lipid profile analysis suggest that HPA could be a DHA‐H effector. Methods : APP processing was assessed in cell cultures of HEK293 and N2a neuroblastoma cell lines and analyzed by western blot. Neuroprotective effect of DHA‐H and HPA was tested in neuron cells differentiated from SH‐SY5Y neuroblastoma cells that were stimulated with NMDA (N‐Methyl‐D‐Aspartate)/Ca to induce excitotoxicity. Lipid samples for lipid profile analysis were obtained from the same cultured cells by addition of chloroform/methanol. Fatty acids were transformed into methyl esters and analyzed by GC‐FID (Gas Chromatography‐Flame ionization detector). Results : DHA‐H administration decreases the levels of derivatives from the APP amyloidogenic processing. DHA‐H and HPA showed a neuroprotective effect in a neuronal model of NMDA‐induced excitotoxicity. DHA‐H administration does not significantly alter the main fatty acids but clearly increases HPA levels in the cells. Conclusion All these results together demonstrate that DHA‐H exerts neuroprotection and prevents amyloidogenic processing possibly through its metabolic intermediate HPA. Therefore, HPA appears as a new promising molecule for Alzheimer’s therapy." @default.
- W4380883912 created "2023-06-17" @default.
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- W4380883912 date "2023-06-01" @default.
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- W4380883912 title "Hydroxy‐docosahexaenoic acid (DHA‐H) and its immediate metabolite Heneicosapentaenoic acid (HPA) exert neuroprotection and prevent amyloidogenic APP processing" @default.
- W4380883912 doi "https://doi.org/10.1002/alz.067537" @default.
- W4380883912 hasPublicationYear "2023" @default.
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