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Study Links ABCA7 Gene Variants to Alzheimer's Risk

9/11/2025

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Summary

Story summary

MIT neuroscientists linked rare variants of the ABCA7 gene to increased Alzheimer’s disease risk by disrupting lipid metabolism.
Dysfunctional ABCA7 variants cause neuron hyperexcitability and cellular stress, damaging DNA.
Choline treatment can reverse these effects, restoring cellular function and lowering amyloid beta levels.
The study analyzed 12 tissue samples with rare ABCA7 mutations from the Religious Orders Study/Memory and Aging Project.
A common ABCA7 variant also disrupts lipid metabolism, suggesting wider implications for Alzheimer’s risk.

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Story summary

MIT neuroscientists linked rare variants of the ABCA7 gene to increased Alzheimer’s disease risk by disrupting lipid metabolism.
Dysfunctional ABCA7 variants cause neuron hyperexcitability and cellular stress, damaging DNA.
Choline treatment can reverse these effects, restoring cellular function and lowering amyloid beta levels.
The study analyzed 12 tissue samples with rare ABCA7 mutations from the Religious Orders Study/Memory and Aging Project.
A common ABCA7 variant also disrupts lipid metabolism, suggesting wider implications for Alzheimer’s risk.