Nutrients, Vol. 17, Pages 2701: Investigation into Efficacy and Mechanisms of Neuroprotection of Ashwagandha Root Extract and Water-Soluble CoenzymeQ10 in a Transgenic Mouse Model of Alzheimer’s Disease
Nutrients doi: 10.3390/nu17162701
Authors:
Caleb Vegh
Gabrielle Walach
Keanna Dube
Bromleigh Dobson
Rohan Talukdar
Darcy Wear
Hasana Jayawardena
Kaitlyn Dufault
Lauren Culmone
Subidsa Srikantha
Iva Okaj
Rachel Huggard
Jerome Cohen
Siyaram Pandey
Background: Alzheimer’s Disease (AD) is one of the most prevalent neurodegenerative disorders and the most common form of dementia. Although current treatments examine disease progression, many have side effects and primarily target symptomatic relief as opposed to halting further neurodegeneration. Objective: The current study aims to determine the neuroprotective effects of water-soluble coenzyme Q10 (Ubisol-Q10) and an ethanolic Ashwagandha extract (E-ASH) on a transgenic mouse model of AD. Methods: A variety of immunofluorescence staining of biomarkers was conducted to assess mechanisms commonly implicated in the disease. Additionally, spatial and non-spatial memory tests evaluated cognitive functions at two timepoints throughout the progression of the disease. Results: A substantial reduction in microglial activation and amyloid-β (Aβ) plaques when treated with a combination of natural health products (NHPs), Ubisol-Q10 and E-ASH. Moreover, activation of autophagy was upregulated in both the Ubisol-Q10 and combination (Ubisol-Q10+E-ASH given as a combined “Tonic” solution) groups. Oxidative stress was decreased across treated groups, while astrocyte activation was elevated in both the E-ASH and Tonic group. The Tonic group expressed an elevation in the fluorescent intensity of neuronal nuclei (NeuN) and brain-derived neurotrophic factor (BDNF) levels. Interestingly, treatment with E-ASH and Ubisol-Q10 enhanced synaptic vesicle formation compared to controls. Pre-mortem memory tests revealed the treatments to be effective at preserving cognitive abilities. Conclusions: Based on these findings, the combination of E-ASH and Ubisol-Q10 may effectively mitigate the various mechanisms implicated in AD and ultimately prevent further disease progression.
Background: Alzheimer’s Disease (AD) is one of the most prevalent neurodegenerative disorders and the most common form of dementia. Although current treatments examine disease progression, many have side effects and primarily target symptomatic relief as opposed to halting further neurodegeneration. Objective: The current study aims to determine the neuroprotective effects of water-soluble coenzyme Q10 (Ubisol-Q10) and an ethanolic Ashwagandha extract (E-ASH) on a transgenic mouse model of AD. Methods: A variety of immunofluorescence staining of biomarkers was conducted to assess mechanisms commonly implicated in the disease. Additionally, spatial and non-spatial memory tests evaluated cognitive functions at two timepoints throughout the progression of the disease. Results: A substantial reduction in microglial activation and amyloid-β (Aβ) plaques when treated with a combination of natural health products (NHPs), Ubisol-Q10 and E-ASH. Moreover, activation of autophagy was upregulated in both the Ubisol-Q10 and combination (Ubisol-Q10+E-ASH given as a combined “Tonic” solution) groups. Oxidative stress was decreased across treated groups, while astrocyte activation was elevated in both the E-ASH and Tonic group. The Tonic group expressed an elevation in the fluorescent intensity of neuronal nuclei (NeuN) and brain-derived neurotrophic factor (BDNF) levels. Interestingly, treatment with E-ASH and Ubisol-Q10 enhanced synaptic vesicle formation compared to controls. Pre-mortem memory tests revealed the treatments to be effective at preserving cognitive abilities. Conclusions: Based on these findings, the combination of E-ASH and Ubisol-Q10 may effectively mitigate the various mechanisms implicated in AD and ultimately prevent further disease progression. Read More