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Title

Melatonin plus physical exercise are highly neuroprotective in the 3xTg-AD mouse

AuthorsGarcía-Mesa, Yoelvis ; Giménez-Llort, Lydia; Cristòfol, Rosa ; Sanfeliu, Coral
Issue Date2012
PublisherElsevier
CitationNeurobiology of Aging 33(6): 1124e13-1124e29 (2012)
AbstractAlzheimer's disease (AD) is a devastating age-related neurodegenerative disease with no specific treatment at present. Several healthy lifestyle options and over-the-counter drugs that it has been suggested delay the onset of the disease are in an experimental phase, but it is unclear whether they will have any therapeutic value against AD. We assayed physical exercise and melatonin in 3xTg-AD male mice aged from 6 to 12 months, therefore from moderate to advanced phases of AD pathology. Analysis of behavior and brain tissue at termination showed differential patterns of neuroprotection for the 2 treatments. Both treatments decreased soluble amyloid β oligomers, whereas only melatonin decreased hyperphosphorylated tau. Melatonin was effective against the immunosenescence that 3xTg-AD mice present. Voluntary physical exercise protected against behavioral and psychological symptoms of dementia such as anxiety, a lack of exploration, and emotionality. Both treatments protected against cognitive impairment, brain oxidative stress, and a decrease in mitochondrial DNA (mtDNA). Interestingly, only the combined treatment of physical exercise plus melatonin was effective against the decrease of mitochondrial complexes. Therefore, melatonin plus physical exercise may exert complementary, additive, or even synergistic effects against a range of disturbances present in AD. © 2012 Elsevier Inc.
DescriptionEl pdf del artículo es la versión post-print.-- et al.
Publisher version (URL)http://dx.doi.org/10.1016/j.neurobiolaging.2011.11.016
URIhttp://hdl.handle.net/10261/73689
DOI10.1016/j.neurobiolaging.2011.11.016
Identifiersdoi: 10.1016/j.neurobiolaging.2011.11.016
issn: 0197-4580
e-issn: 1558-1497
Appears in Collections:(IIBB) Artículos
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