In order to investigate whether bajijiasu protects against beta-amyloid (A尾25-35)-induced neurotoxicity in rats and explore the underlying mechanisms of bajijiasu in vivo, we prepared an Alzheimer壮s disease (AD) model by injecting A尾25-35 into the bilateral CA1 region of rat hippocampus and treated a subset with oral bajijiasu. We observed the effects on learning and memory, antioxidant levels, energy metabolism, neurotransmitter levels, and neuronal apoptosis.
Bajijiasu ameliorated A尾-induced learning and memory dysfunction, enhanced antioxidative activity and energy metabolism, and attenuated cholinergic system damage. Our findings suggest that bajijiasu can enhance antioxidant capacity and prevent free radical damage. It can also enhance energy metabolism and monoamine neurotransmitter levels and inhibit neuronal apoptosis.
The results provide a scientific foundation for the use of Morinda officinalis and its constituents in the treatment of various AD. Future studies will assess the multi-target activity of the drug for the treatment of AD.