Scientists Map How a Brain Transporter Flips Omega-3 Fats Into the Brain
This laboratory study used a high-resolution imaging technique called cryo-electron microscopy to study a protein called Mfsd2a, which is responsible for carrying omega-3 fatty acids like DHA (and its precursor ALA) across the blood-brain barrier and into brain cells.
These fatty acids don’t travel alone — they are attached to a phospholipid carrier molecule called lysophosphatidylcholine (LPC). The challenge is that LPC needs to be ‘flipped’ from one side of the cell membrane to the other, which normally takes a lot of energy because of how membranes are structured.
By capturing five different snapshots of the transporter in zebrafish, researchers were able to see, step by step, how Mfsd2a grabs the fatty acid-LPC complex, moves it through the membrane, and releases it on the inside of the cell. They also identified which mutations in this transporter disrupt the process, some of which are linked to neurological conditions.
What this means for you
This is basic molecular biology research, not a human nutrition study, but it helps explain at a mechanistic level how omega-3 fats like DHA physically get into brain cells — a process that depends on specific membrane transporters rather than DHA simply diffusing across the blood-brain barrier.
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Nature communications · 2023-05-08 · DOI: 10.1038/s41467-023-37702-7
Read the original source ↗This summary is for educational purposes only and is not medical advice. Always talk to your healthcare provider before making changes to your supplement routine.