Antioxidant Effects of Walnut (
AGEs
ROS
acetylcholinesterase
antiaging
brain
by-products
immunohistochemistry
liver
malondialdehyde
oxidative stress
Journal
Antioxidants (Basel, Switzerland)
ISSN: 2076-3921
Titre abrégé: Antioxidants (Basel)
Pays: Switzerland
ID NLM: 101668981
Informations de publication
Date de publication:
14 May 2020
14 May 2020
Historique:
received:
23
04
2020
revised:
12
05
2020
accepted:
12
05
2020
entrez:
20
5
2020
pubmed:
20
5
2020
medline:
20
5
2020
Statut:
epublish
Résumé
Antioxidant dietary intervention is considered a potential strategy in delaying age-related dysfunctions. In this study of 56 days, we assessed the antioxidant effects of walnut kernel (WK) and walnut septum extract (WSE) in a D-galactose (D-gal)-induced aging model and in a naturally aged rat model. Young Wistar rats, treated with D-gal (1200 mg/week), and old rats received daily WK or WSE added to the feed. After 8 weeks, blood, liver, and brain samples were collected and hematological, biochemical, oxidative stress biomarkers, histological, and immunohistochemical analyses were performed. Moreover, acetylcholinesterase activity was investigated in brain homogenates. The outcomes demonstrated significant improvement in cellular antioxidant activity and/or decrease of reactive oxygen species, advanced glycation end products, nitric oxide, malondialdehyde, or increase of glutathione after WK or WSE intake in both models. Additionally, WSE showed hypoglycemic effect, and both WK and WSE lowered acetylcholinesterase activity. Both diets could protect neurons against the induced senescence and could reverse the pathological conditions in the physiological aged brain. Thus, dietary supplementation with WK or WSE can maintain the liver and brain health and reduce the risk of age-related diseases, as well as delaying the onset of aging processes.
Identifiants
pubmed: 32423149
pii: antiox9050424
doi: 10.3390/antiox9050424
pmc: PMC7278598
pii:
doi:
Types de publication
Journal Article
Langues
eng
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