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• W2034255941 endingPage "232" @default.
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• W2034255941 abstract "Using 22R-hydroxycholesterol as a sub-structure to screen natural compound databases, we identified a naturally occurring steroid (sc-7) with a 16-acetoxy-22R-hydroxycholesterol moiety, in which the hydroxyl groups in positions 3 and 22 are esterified by an acetoxy group and in which the carbon in position 26 carries a functional diacetylamino. sc-7 is an analog of the sex steroids dehydro-oogoniol and antheridiol, can be isolated from the water mold Achlya heterosexualis, and promoted neurogenesis in vitro and in vivo. Mouse embryonic teratocarcinoma P19 cells exposed to sc-7 for 2 days followed by a 5-day wash-out differentiated into cholinergic neurons that expressed specific neuronal markers and displayed axonal formation. Axons continued growing up to 28 days after treatment. In vivo, infusion of sc-7 for 2 weeks into the left ventricle of the rat brain followed by a 3-week wash-out induced bromodeoxyuridine uptake by cells of the ependymal layer and subventricular zone that co-localized with doublecortin and glial fibrillary acidic protein immunostaining, demonstrating induction of proliferation and differentiation of neuronal progenitors. Migrating neuroblasts were also observed in the corpus callosum. Thus, under these experimental conditions, adult ependymal cells resumed proliferation and differentiation. Taken together, these results suggest that sc-7 is an interesting molecule for stimulating in situ neurogenesis from resident neuronal progenitors as part of neuron replacement therapy. sc-7 did not bind to nuclear steroid receptors and was not metabolized as a steroid, supporting our hypothesis that the neurogenic effect of sc-7 is not likely due to a steroid-like effect." @default.
• W2034255941 created "2016-06-24" @default.
• W2034255941 creator A5058801218 @default.
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• W2034255941 date "2012-02-01" @default.
• W2034255941 modified "2023-09-27" @default.
• W2034255941 title "A steroid isolated from the water mold Achlya heterosexualis induces neurogenesis in vitro and in vivo" @default.
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• W2034255941 doi "https://doi.org/10.1016/j.steroids.2011.11.009" @default.
• W2034255941 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22138207" @default.
• W2034255941 hasPublicationYear "2012" @default.
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