16 research outputs found
Amyloid precursor protein reduction enhances the formation of neurofibrillary tangles in a mutant tau transgenic mouse model.
Alzheimer's disease is characterized by the presence of 2 neuropathological lesions: neurofibrillary tangles, composed of tau proteins which are highly phosphorylated and phosphorylated on uncommon sites, and amyloid plaques, containing the Aß peptides generated from the amyloid precursor protein (APP). Reduction of some APP proteolytic derivatives in Alzheimer's disease such as sAPPα fragment has been reported and sAPPα has been shown to affect tau phosphorylation. To investigate in vivo the effect of absence of APP protein and its fragments on tau phosphorylation and the formation of neurofibrillary tangles, we have generated mice deleted for APP gene and overexpressing a human mutant tau protein and developing neurofibrillary tangles (APPKOTg30 mice). These APPKOTg30 mice showed more severe motor and cognitive deficits, increased tau phosphorylation, increased load of neurofibrillary tangles, and increased p25/35 ratio in the brain, compared with Tg30 mice. These data suggest that APP and/or its proteolytic derivatives interfere with the formation of neurofibrillary tangles in a transgenic mouse model that will be useful for investigating the relationship between APP and tau.SCOPUS: ar.jinfo:eu-repo/semantics/publishe
Pulmonary and systemic vasoreactivity to leptin in spontaneously hypertensive rats
info:eu-repo/semantics/nonPublishe
Pulmonary and systemic vasoreactivity to leptin in spontaneously hypertensive rats
info:eu-repo/semantics/nonPublishe
Pulmonary and systemic vasoreactivity to leptin in spontaneously hypertensive rat
info:eu-repo/semantics/nonPublishe
Intravenous injection of PHF-Tau proteins from Alzheimer Brain exacerbates neuroinflammation, Amyloid beta, and tau pathologies in 5XFAD transgenic mice.
info:eu-repo/semantics/publishe
Intravenous injection of PHF-Tau proteins from Alzheimer Brain exacerbates neuroinflammation, Amyloid beta, and tau pathologies in 5XFAD transgenic mice.
info:eu-repo/semantics/publishe
Intravenous injection of PHF-tau proteins from Alzheimer brain exacerbates neuroinflammation, amyloid beta and tau pathologies in APP/PS1 transgenic mice
info:eu-repo/semantics/publishe
Intravenous injection of PHF-tau proteins from Alzheimer brain exacerbates neuroinflammation, amyloid beta and tau pathologies in APP/PS1 transgenic mice.
info:eu-repo/semantics/publishe
PHF-tau propagation in the presence of Amyloid Ăź pathology
info:eu-repo/semantics/publishe