Translational Neurodegeneration

Turmeric mitochondria improve learning and memory in mice

In a two-month experiment, turmeric mitochondria given by mouth reached brain immune cells in male mice and changed their energy production.

Paper by Yun Teng, Chao Luo, Qingbo Xu, 11 more authorsHuang-Ge Zhang · University of Louisville
Experiments in male C57BL/6 mice, two monthsInterventions

Limit: The “aged” mice were 18–20 weeks old, misclassifying young adults as aged

Edited by Boris Djordjevic · AgingResearch.News

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In an animal experiment, male C57BL/6 mice classified by the authors as aged at 18–20 weeks received mitochondria isolated from turmeric. Mitochondria are cell structures that produce usable energy. Researchers gave 0.5 grams per kilogram of body weight through a feeding tube every other day for two months.

The mice performed better on learning and memory tests. The turmeric mitochondria traveled from the gut to the brain, where they fused with mitochondria in microglia, the brain’s immune cells. In these cells, they reduced production of reactive oxygen molecules, which can damage cells, and increased production of ATP, a molecule cells use for energy.

Why it matters

The work explored brain immune cells’ energy production as a target for addressing age-related cognitive decline. The authors suggested that transferring plant mitochondria may lead to approaches for preventing or treating human diseases involving mitochondrial dysfunction.

Caveats

The authors defined the “aged” group as 18–20 weeks old, and the experiments used males only. The results do not establish benefits in people or from eating turmeric.