Cited by 3,378Antioxidant Activity and Oxidative StressNeurological Disorders and TreatmentsPhytochemicals and Antioxidant Activities

Oxidative Stress and Neurodegenerative Diseases: A Review of Upstream and Downstream Antioxidant Therapeutic Options

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Uttara, Bayani, Singh, Ajay, Zamboni, Paolo, Mahajan, R.·2009·Current Neuropharmacology

Abstract

Free radicals are common outcome of normal aerobic cellular metabolism. In-built antioxidant system of body plays its decisive role in prevention of any loss due to free radicals. However, imbalanced defense mechanism of antioxidants, overproduction or incorporation of free radicals from environment to living system leads to serious penalty leading to neuro-degeneration. Neural cells suffer functional or sensory loss in neurodegenerative diseases. Apart from several other environmental or genetic factors, oxidative stress (OS) leading to free radical attack on neural cells contributes calamitous role to neuro-degeneration. Though, oxygen is imperative for life, imbalanced metabolism and excess reactive oxygen species (ROS) generation end into a range of disorders such as Alzheimer's disease, Parkinson's disease, aging and many other neural disorders. Toxicity of free radicals contributes to proteins and DNA injury, inflammation, tissue damage and subsequent cellular apoptosis. Antioxidants are now being looked upon as persuasive therapeutic against solemn neuronal loss, as they have capability to combat by neutralizing free radicals. Diet is major source of antioxidants, as well as medicinal herbs are catching attention to be commercial source of antioxidants at present. Recognition of upstream and downstream antioxidant therapy to oxidative stress has been proved an effective tool in alteration of any neuronal damage as well as free radical scavenging. Antioxidants have a wide scope to sequester metal ions involved in neuronal plaque formation to prevent oxidative stress. In addition, antioxidant therapy is vital in scavenging free radicals and ROS preventing neuronal degeneration in post-oxidative stress scenario.

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  1. [10]Burton GW Ingold KU Miguel A Quintanilha AT Weber H Mechanisms of antioxidant action: preventive and chain-breaking antioxidants CRC Handbook of Free Radicals and Antioxidants in Biomedicine 1990 Boca Raton, FL. Press Inc. 29 43
  2. [67]Pryor WA Warner HR Butler RN Sprott RL Schneider EL The free-radical theory of aging revisited: A critique and a suggested disease-specific theory In: Eds Modern Biological Theories of Aging 1987 New York Raven Press 89 112
  3. [68]Richardson JS Subbarao KV Ang LC Biochemical indices of peroxidation in Alzheimer's and control brains Trans. Am. Soc. Neurochem 1990 21 113

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Authors
Uttara, B., Singh, A., Zamboni, P., & Mahajan, R.
Affiliations
  • University of Milan (IT)
  • University of Ferrara (IT)
Corresponding author
  • Uttara, Bayani
  • Mahajan, R.
Venue
Current Neuropharmacology
Published
2009-03-01
Volume
7
Issue
1
Pages
65-74
ISSN
1570-159X (ISSN-L)
OpenAlex
W1985031521
Cited by
3,378
References
94
Citations by year
2026: 90 · 2025: 122 · 2024: 187 · 2023: 197 · 2022: 305 · 2021: 337 · 2020: 308 · 2019: 277 · 2018: 308 · 2017: 321 · 2016: 264 · 2015: 231 · 2014: 192 · 2013: 115 · 2012: 48
FWCI
25.67
Type
journal article
Language
en
Open access
Locations
  • Current Neuropharmacology (publishedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Institutional Research Information System University of Ferrara (University of Ferrara) (submittedVersion)
Funders
Department of Biotechnology, Ministry of Science and Technology, India
Topics
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Life Sciences › Neuroscience › Neurology › Neurological Disorders and Treatments
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
Keywords
oxidative stress, neurodegenerative diseases, antioxidants, reactive oxygen species, free radicals, Alzheimer's disease, Parkinson's disease, aging, neuronal injury, apoptosis, dietary antioxidants, medicinal plants, metal ion sequestration, neuroprotection

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