Aim: Present study is design to investigate the effect of hydroalcoholic
extract of Centella asiatica (HA-CA) in 3-nitro propionic acid induced
Huntington’s disease in adult zebrafish. Material and method: In current
study, adult zebrafish (approximately 5-6 months old), weighing from
470-530 mg were used and treated with 3-NP (5 mg/kg i.p). The animals
received HA-CA (80, and 100 mg/l) daily up to twenty eight days in
water. Tetrabenazine (TBZ) (3 mg/kg i.p.) was used as standard drug. The
body weight and behavior were performed before 3-NP administration on
every 4th day. Then animal were sacrificed for biochemical analysis
using UV-spectrophotometer. Inflammatory markers were measured by using
zebrafish ELISA kits. Neuronal damage in the brain was examined by using
Hematoxylin and eosin (H&E) staining. Results: 3-NP treated zebrafish
showed marked reduction in body weight, cognition, and locomotion
activity accompanied by progressive striatal dysfunction. HA-CA treated
group significantly reversed 3-NP induced increase level of LPO, AChEs,
Nitrite, and decrease level of GSH. Administration of HA-CA (80, 100
mg/l) significantly ameliorates 3-NP induced alteration in body weight
and behavior, restored antioxidant enzymes level, decrease ROS
production and neuroinflammation. HA-CA significantly decreases TNF-α,
and IL-1β levels in the brain. Moreover, HA-CA significantly reversed
3-NP induced neuronal loss in the brain. Conclusion: HA-CA exhibits
protective effect against 3-NP induced decrease locomotor activity,
increase in oxidative stress, neuroinflammation, and neuronal loss in HD
model of zebrafish, which is associated with its antioxidant activity.
Keywords: 3-nitropropionic acid, Centella asiatica, oxidative stress,
neurotoxicity, neuroinflammation, zebrafish