Blueberry Anthocyanins Extract Attenuates Acrylamide-Induced Oxidative Stress and Neuroinflammation in Rats
Overview
Endocrinology
Authors
Affiliations
Acrylamide (AA) is a widespread environmental and dietary-derived neurotoxin, which can induce oxidative stress and associated inflammation in the brain. Anthocyanins widely occur as natural antioxidant and anti-inflammatory phytochemicals. Herein, the protective effects of blueberry anthocyanins extract (BAE) against AA-induced neurotoxicity were investigated in rats. The rats were pretreated with BAE (175 mg/kg body weight/day) by oral gavage for the first 7 days, followed by the co-administration of BAE and AA (35 mg/kg body weight/day) by oral gavage for the next 12 days. Results showed that BAE significantly decreased the malondialdehyde (MDA) production, and increased glutathione (GSH) and antioxidant enzyme levels; and it also suppressed microglial activation, astrocytic reaction, and pro-inflammatory cytokine expressions. Furthermore, BAE elevated the extracellular signal-related kinase (ERK)/cAMP response elements binding protein (CREB)/brain-derived neurotrophic factor (BDNF) pathway, and relieved the accumulation of amyloid beta (A) 1-42 and 1-40 after AA exposure. Consequently, AA-induced neuronal necrosis and downregulation of synaptosomal-associated protein 25 (SNAP-25) were attenuated by BAE in the hippocampus and cerebral cortex. In conclusion, BAE can exert a protective function on neurons and synapses against AA-induced oxidative stress and neuroinflammation.
Antioxidant Activity of Anthocyanins and Anthocyanidins: A Critical Review.
Sadowska-Bartosz I, Bartosz G Int J Mol Sci. 2024; 25(22).
PMID: 39596068 PMC: 11593439. DOI: 10.3390/ijms252212001.
Strategies to reduce neurotoxic acrylamide in biscuits, a systematic review.
Ghanati K, Shafaroodi H, Basaran B, Moslemizadeh A, Mahdavi V, Sadighara M Toxicol Rep. 2024; 13:101751.
PMID: 39399097 PMC: 11470260. DOI: 10.1016/j.toxrep.2024.101751.
Zhang H, Liu Y, Wen Y, Wang H, Chen L Toxicol Res (Camb). 2024; 13(4):tfae109.
PMID: 39036523 PMC: 11256996. DOI: 10.1093/toxres/tfae109.
Curtis P, van der Velpen V, Berends L, Jennings A, Haag L, Minihane A Am J Clin Nutr. 2024; 119(3):658-668.
PMID: 38432713 PMC: 10972710. DOI: 10.1016/j.ajcnut.2023.12.006.
Frountzas M, Karanikki E, Toutouza O, Sotirakis D, Schizas D, Theofilis P Int J Mol Sci. 2023; 24(11).
PMID: 37298350 PMC: 10254033. DOI: 10.3390/ijms24119399.