Dietary Intake: New Results to Ponder on Vitamin A, Folate
Sunday, November 9th, 2008
Papers in the current issue of the Journal of Neuroscience will help to refocus attention on two vitamins and their relation to AD…
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Papers in the current issue of the Journal of Neuroscience will help to refocus attention on two vitamins and their relation to AD…
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Thanksgiving IdeasAs Thanksgiving approaches, your family is thinking of celebrations and special recipes. The children (and your Alzheimer’s patient) may be looking for books to enjoy. Check out my list of books with fun, facts, activities and recipes at One Book Two Book. Fun & Fact Books for Thanksgiving & Harvest SeasonFavorite Thanksgiving BooksDo you have any to suggest? Favorite books, activities and recipes?Tags: Alzheimer’s Notes, Alzheimers, books, caregivers, family gatherings, Mary Emma Allen, recipes, ThanksgivingShare This (Source: Alzheimer’s Notes)
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Reuters - The number of people 65 or older who are hospitalized for heart failure more than doubled in the past 27 years and is likely to keep climbing unless prevention measures are adopted quickly, U.S. researchers said on Sunday.
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Constant baiting can enrage even the most placid. Is that true also of microglia in the Alzheimer brain?…
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Abstract: Background: This work sought to determine the effects of hypothalamic proline-rich peptide (PRP)-1 in a rat model of Alzheimer’s disease.Methods: Complex histochemical, electrophysiologic, and behavioral analyses were performed on intact or diseased Wistar rats (n = 28). Pathologic conditions were induced by bilateral intracerebroventricular injection of amyloid peptide A?25–35. The diseased rats received systemic administration of PRP-1 or placebo control.Results: A?25–35 caused cellular neurodegeneration with marked glial reaction in the hippocampal complex and almost full destruction of the dentate fascia, which was not observed in conditions of PRP-1 administration after A?25–35 injection. Hippocampal neurons of intact animals responded to high-frequency (tetanic) stimulation of entorhinal cortex of ipsilateral cerebral hemisphere by tetanic and posttetanic potentiation of a different intensity and duration, which was accompanied by posttetanic depression. A?25–35 led to significant changes in the level and pattern of hippocampal neuronal activity, indicating the absence of both tetanic and posttetanic activity. Poststimulus activity manifestations rarely occurred and rapidly decreased after repeated trials. This indicated the focal character of lesion. Regular administration of PRP-1 for 4 weeks resulted in optimal restoration of electrophysiologic parameters. PRP-1 maintained the initial learning level achieved in a behavioral study in a Morris water maze.Conclusions: Systemic administration of PRP-1 possesses neuroprotective effects and can prevent the neurodegeneration in hippocampus induced by A?25–35. This suggests that PRP-1 could be a potential therapeutic agent for specific neurodegenerative diseases.
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