RT Journal Article
SR Electronic
T1 Curcumin alleviates Arsenic trioxide-induced behavioural impairment, oxidative damage & morphological alterations in striatal region of mice brain
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 2023.12.14.571716
DO 10.1101/2023.12.14.571716
A1 Pandey, Kamlesh Kumar
A1 Mehta, Kamakshi
A1 Kaur, Balpreet
A1 Dhar, Pushpa
A1 Kaler, Saroj
YR 2023
UL http://biorxiv.org/content/early/2023/12/15/2023.12.14.571716.abstract
AB Arsenic-induced neurotoxicity is well-documented in literature and reported to have dose-dependent damaging effects in the mice brain. Curcumin, a cost-effective plant polyphenol, safely demonstrates protective effects against arsenic-induced neurotoxicity by modifying oxidative stress, apoptosis, and neurochemistry in rodents’ brain.The present study determined the neuroprotective potential of curcumin (CUR) on adverse effects induced by arsenic trioxide (As2O3) in mice striatal region. Healthy adult male mice were chronically administered with varying concentrations of As2O3 (2, 4 & 8 mg/kg bw) alone and along with CUR (100 mg/kg bw) via oral route for 45 days. Towards the end of experimental period, the animals were subjected to behavioural paradigm including open field task, novel object recognition, rota-rod and morris water maze. Fresh striatal tissues were collected from the animals on day 46 for biochemical analysis such as MDA, GPx and GSH. While perfusion fixed brains were processed for morphological observations.Behavioural study showed an apparent decrease in certain cognitive functions (learning and memory) and locomotor activity in mice exposed to As2O3 compared to controls. Simultaneous treatment of As2O3 (2, 4 & 8 mg/kg bw) and curcumin (100 mg/kg bw) alleviated the As-induced locomotor and cognitive deficits. As2O3 alone exposure also exhibited a significant increase in oxidative stress marker (MDA) and decrease in antioxidant enzyme levels (GPx, GSH). Morphological alterations were noted in mice subjected to elevated doses of As2O3 (4 & 8 mg/kg bw). However, these changes were reversed in mice who received As2O3 + CUR co-treatment. Together, our findings provide preliminary evidence that curcumin protects mice striatal region from As2O3-induced behavioral, biochemical and morphological alterations.Competing Interest StatementThe authors have declared no competing interest.