Disentangling Mitochondria in Alzheimer’s Disease

Alzheimer’s disease (AD) is a major cause of dementia in older adults and is fast becoming a major societal and economic burden due to an increase in life expectancy. Age seems to be the major factor driving AD, and currently, only symptomatic treatments are available. AD has a complex etiology, alt...

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Main Author: Ashu Johri
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/21/11520
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author Ashu Johri
author_facet Ashu Johri
author_sort Ashu Johri
collection DOAJ
description Alzheimer’s disease (AD) is a major cause of dementia in older adults and is fast becoming a major societal and economic burden due to an increase in life expectancy. Age seems to be the major factor driving AD, and currently, only symptomatic treatments are available. AD has a complex etiology, although mitochondrial dysfunction, oxidative stress, inflammation, and metabolic abnormalities have been widely and deeply investigated as plausible mechanisms for its neuropathology. Aβ plaques and hyperphosphorylated tau aggregates, along with cognitive deficits and behavioral problems, are the hallmarks of the disease. Restoration of mitochondrial bioenergetics, prevention of oxidative stress, and diet and exercise seem to be effective in reducing Aβ and in ameliorating learning and memory problems. Many mitochondria-targeted antioxidants have been tested in AD and are currently in development. However, larger streamlined clinical studies are needed to provide hard evidence of benefits in AD. This review discusses the causative factors, as well as potential therapeutics employed in the treatment of AD.
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spelling doaj.art-6e0b2c5337454f8d8e279b517fa090ce2023-11-22T20:53:31ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-10-0122211152010.3390/ijms222111520Disentangling Mitochondria in Alzheimer’s DiseaseAshu Johri0Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10065, USAAlzheimer’s disease (AD) is a major cause of dementia in older adults and is fast becoming a major societal and economic burden due to an increase in life expectancy. Age seems to be the major factor driving AD, and currently, only symptomatic treatments are available. AD has a complex etiology, although mitochondrial dysfunction, oxidative stress, inflammation, and metabolic abnormalities have been widely and deeply investigated as plausible mechanisms for its neuropathology. Aβ plaques and hyperphosphorylated tau aggregates, along with cognitive deficits and behavioral problems, are the hallmarks of the disease. Restoration of mitochondrial bioenergetics, prevention of oxidative stress, and diet and exercise seem to be effective in reducing Aβ and in ameliorating learning and memory problems. Many mitochondria-targeted antioxidants have been tested in AD and are currently in development. However, larger streamlined clinical studies are needed to provide hard evidence of benefits in AD. This review discusses the causative factors, as well as potential therapeutics employed in the treatment of AD.https://www.mdpi.com/1422-0067/22/21/11520Alzheimer’s diseaseneurodegenerationmitochondriaantioxidantsPGC-1αsirtuins
spellingShingle Ashu Johri
Disentangling Mitochondria in Alzheimer’s Disease
International Journal of Molecular Sciences
Alzheimer’s disease
neurodegeneration
mitochondria
antioxidants
PGC-1α
sirtuins
title Disentangling Mitochondria in Alzheimer’s Disease
title_full Disentangling Mitochondria in Alzheimer’s Disease
title_fullStr Disentangling Mitochondria in Alzheimer’s Disease
title_full_unstemmed Disentangling Mitochondria in Alzheimer’s Disease
title_short Disentangling Mitochondria in Alzheimer’s Disease
title_sort disentangling mitochondria in alzheimer s disease
topic Alzheimer’s disease
neurodegeneration
mitochondria
antioxidants
PGC-1α
sirtuins
url https://www.mdpi.com/1422-0067/22/21/11520
work_keys_str_mv AT ashujohri disentanglingmitochondriainalzheimersdisease