Japanese scientists identify LPC70 compound that protects mice from high-salt diet.

Japanese scientists have identified a soy‑derived molecule, LPC70, that protects mice from the harmful effects of a high‑salt diet. The discovery was reported in a study released this week by researchers at Osaka University. Mice that received the compound while eating a salty diet showed lower blood pressure, better memory and more normal social behavior than mice that ate the same amount of salt without the supplement.

High salt intake is already linked to hypertension, but recent research suggests it may also damage the brain. In laboratory tests, excess salt has been shown to impair learning and reduce social interaction in rodents. The new findings add to a growing concern that everyday diets high in sodium could affect cognition as well as cardiovascular health. The Japanese team set out to see whether a natural compound could counteract these effects, choosing LPC70 because it is a by‑product of soy processing and has previously shown anti‑inflammatory properties.

When the researchers fed one group of mice a high‑salt diet alone, the animals developed higher blood pressure and performed poorly in maze tests that measure memory. Their social play was also reduced. A second group received the same salty diet plus daily doses of LPC70. Those mice maintained normal blood pressure, navigated the maze more efficiently and engaged in typical social behaviors. Lead author Dr Keiko Tanaka said the results suggest LPC70 blocks the chain of events that links salt overload to brain dysfunction. She cautioned that the work is still in early stages and that human trials will be needed to confirm safety and effectiveness. If future studies replicate the findings, LPC70 could become a dietary supplement to help people who cannot easily cut sodium from their meals, offering a simple way to protect both heart and mind.