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‘Gut instinct’ may have been the GPS of human ancestors

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However, it did not appear to affect the rats’ anxiety levels or their weight, the scientists noted.

The scientists wrote that their findings may raise an important and timely medical question that merits further exploration: Could bariatric surgeries or other therapies that block gut-to-brain signaling affect memory?

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The study was supported by a National Institutes of Health grant to Kanoski (DK104897) and to study co-author Guillame de Lartigue at Yale University (DK094871).

Other co-authors were Ted M. Hsu, Clarissa M. Liu, Emily Noble, Alyssa Cortella, Emily Nakamoto, and Joel Hahn, all in biological sciences at USC Dornsife.

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