Improvement effect of nervonic acid-containing modified milk on scopolamine-induced memory-impaired mice

Area of Science:

• Neuroscience
• Nutritional Science
• Microbiology

Background:

• Cognitive dysfunction and memory impairment are significant health concerns.
• Scopolamine is a common agent used to induce memory deficits in animal models.
• Nervonic acid (NA) is a monounsaturated fatty acid found in some dairy products, with potential neuroprotective properties.

Purpose of the Study:

• To evaluate the efficacy of nervonic acid (NA)-containing modified milk (NA-MM) in ameliorating scopolamine-induced memory impairment in mice.
• To investigate the underlying mechanisms, including effects on oxidative stress, cholinergic system, blood lipids, and gut microbiota.

Main Methods:

• Mice were treated with NA-MM for 30 days.
• Cognitive function was assessed using behavioral tests (Y maze, novel object recognition, open field).
• Biochemical analyses measured hippocampal oxidative stress markers, cholinergic system enzymes, serum lipid profiles, and gut microbial composition.

Main Results:

• NA-MM treatment significantly improved cognitive performance in behavioral tests.
• NA-MM reduced hippocampal oxidative stress and modulated the cholinergic system.
• Improvements were observed in blood lipid profiles and gut microbiota diversity, including the Firmicutes-to-Bacteroides ratio.

Conclusions:

• NA-MM demonstrates potential as a functional food for enhancing memory and cognitive function.
• The benefits are attributed to reduced oxidative stress, improved cholinergic neurotransmission, better lipid profiles, and modulated gut microbiota.
• Further research supports NA-MM's role in cognitive health and overall well-being.