Boric acid protects against glyphosate-induced neurotoxicity by modulating oxidative stress, inflammation, apoptosis, and autophagy pathways in the rat brain


Dogan T., Çınar B., Bolat M., Bolat İ., Senocak E., Alat Ö., ...Daha Fazla

JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY, cilt.92, 2025 (SCI-Expanded, Scopus) identifier identifier

Özet

Background: Glyphosate (GLY) is a widely used herbicide with increasing evidence of neurotoxic effects. Boric acid (BA), a trace element, has shown potential antioxidant and anti-inflammatory properties, but its role in GLYinduced neurotoxicity remains unexplored. Objective: This study aimed to investigate the neuroprotective effects of boric acid against glyphosate-induced brain toxicity in rats through behavioral, biochemical, molecular, and histological evaluations. Materials and methods: Twenty-eight adult rats were divided into four groups (n = 7): Control, BA (100 mg/kg), GLY (150 mg/kg), and GLY+BA. All treatments were given orally for 7 days. Behavioral assessments were performed using the Elevated Plus Maze and Locomotor Activity Test. Oxidative stress markers (MDA, GSH, SOD, CAT, GPx), apoptotic markers (Bax, Bcl-2, Caspase-3), and inflammatory proteins (TNF-alpha, IL-1 beta, IL-6, COX-2, TLR-4, NF-kappa B) were analyzed. Iba-1 and GFAP were assessed by Western blot, while histopathological and immunohistochemical evaluations included 8-OHdG, TLR2, and LC3A/B. Results: GLY exposure led to significant behavioral deficits, oxidative stress, inflammation, apoptosis, and neuronal damage. BA co-treatment significantly improved behavioral performance, restored antioxidant balance, downregulated pro-inflammatory and apoptotic markers, and reduced glial activation and histological damage. Conclusion: Boric acid exerts neuroprotective effects against GLY-induced neurotoxicity, likely via modulation of oxidative stress, inflammation, apoptosis, and autophagy pathways, supporting its therapeutic potential in chemical-induced brain injury.