Journal
INFLAMMOPHARMACOLOGY
Volume 26, Issue 1, Pages 39-55Publisher
SPRINGER BASEL AG
DOI: 10.1007/s10787-017-0372-x
Keywords
Alzheimer's disease; Vitamin D-3; Neuroprotection; Memory; Acetylcholine; Neuroinflammation
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Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by intracellular neurofibrillary tangles and extracellular Ab deposition. Growing experimental evidence indicate diverse biological effects of vitamin D-3 including antioxidant, neuroprotective, anti-inflammatory and cardiovascular benefits. However, the underlying neuroprotective mechanism of vitamin D-3 is still largely elusive. Therefore, the present study was aimed to investigate the neuroprotective effects of vitamin D-3 on ICV-STZ induced sporadic AD. Our study demonstrated that vitamin D-3 pretreatment significantly improved spatial learning and memory functions and effectively mitigated ICV-STZ mediated neuronal oxidative stress, mitochondrial aberrations and improved cholinergic functions. Moreover, vitamin D-3 attenuated hippocampal neuroinflammatory response and reduced neuronal death in cortex and hippocampus. Our findings indicated that prophylactic vitamin D-3 supplementation ameliorated ICV-STZ mediated neurobehavioral alterations, oxidative stress and neuroinflammation thereby improving cholinergic functions and reversed degenerative changes in brain. Thus, our study further provides evidence for its therapeutic supplementation for various neurodegenerative disorders including AD. [GRAPHICS] .
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