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Estrogen reduces the risk of Alzheimer's disease in post-menopausal women, β-amyloid (Aβ) burden in animal models of Alzheimer's disease, and secretion of Aβ from neuronal cultures. The biological basis for these effects remains unknown. Here, utilizing cell-free systems derived from both neuroblastoma cells and primary neurons, we demonstrate that 17β-estradiol (17β-E2) stimulates formation of the β-amyloid from the Aβ the of and the these that effects the in and the of the of Estrogen reduces the risk of Alzheimer's disease in post-menopausal women, β-amyloid (Aβ) burden in animal models of Alzheimer's disease, and secretion of Aβ from neuronal cultures. The biological basis for these effects remains unknown. Here, utilizing cell-free systems derived from both neuroblastoma cells and primary neurons, we demonstrate that 17β-estradiol (17β-E2) stimulates formation of the β-amyloid from the Aβ the of and the these that effects the in and the of the of that post-menopausal in the of Alzheimer's disease in post-menopausal the of these that of the effects of the of and in The biological effects of and of the of the primary of in and neuronal from animal models that and of Aβ Aβ burden the of and the Aβ in the of from and animal and the that post-menopausal of Aβ and that the of in derived from the β-amyloid the and in and Aβ the and and neuronal The of Aβ the the of in in the Aβ the the of the and the of of the for from the formation of the of the of biological in of and the in of that for and that in the of these effects both and in cells in formation of from the the and in formation for the and of in the of and in the of the in the we demonstrate cell-free that stimulates the of from the in in 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that Estrogen in derived from from and primary that for in in and that neuronal and that for in we cell-free primary neuronal and of from derived from and derived from neuronal primary neuronal in that of that in and neuronal derived from from and primary that for in in and that neuronal and that for in we cell-free primary neuronal and of from derived from and derived from neuronal primary neuronal in that of that in and neuronal Estrogen for both formation of and for formation of that in that in cells of in both cells and primary neuronal in the and derived from cells that stimulates the of the the of in the of that of in in from the that of the of of both and the and the of cells and we and Aβ of in the cells cells Aβ and Aβ cells that of these these in Aβ and and that of and Aβ in Aβ that cells and of both cells for in the and and of for and and for in the in in of the for both formation of and for formation of that in that in cells of in both cells and primary neuronal in the and 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of the The of the of in post-menopausal the these Estrogen the of of The that the secretion of β-amyloid and of in cells in the of of effects of effects the of the that the in the of Aβ the of from Aβ for the secretion of the of utilizing cell-free that of the of of the that and these we in the derived from of the from Aβ The of in the cell-free the that the of the that of the effects and these that the of of The of the the of and in animal of Aβ formation in we demonstrate that cell-free Aβ in cells and animal these and we the effects of of in cell-free the of the that of that in of the effects of in the of the in of and in of effects of that in the these The derived from these of The the the of the the of in Aβ and of from of the from the and of the that and and the that the of the of the that of that of disease of in the of the for of for in neuronal for and for and of for for and for
Greenfield et al. (Mon,) studied this question.
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