How your gut tells your liver to stop making bile
Deletion of the ileal basolateral bile acid transporter identifies the cellular sentinels that regulate the bile acid pool
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Your gut has special cells that sense bile acids after fat digestion and send a signal to your liver to slow down bile production. If those cells can't send bile acids out, the signal doesn't work.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
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Researchers compare people who have a condition (cases) with similar people who do not (controls), looking back in time for differences in exposure. Useful but more prone to bias.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Your gut has special cells that sense bile acids after fat digestion and send a signal to your liver to slow down bile production. If those cells can't send bile acids out, the signal doesn't work.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 512 / 58
Evidence Score
Researchers compare people who have a condition (cases) with similar people who do not (controls), looking back in time for differences in exposure. Useful but more prone to bias.
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Claims (5)
When mice lose a specific protein (Ostα/Ostβ) in their lower intestine, bile acids get stuck inside the gut cells instead of going back to the liver, which messes up the whole recycling system and reduces the total amount of bile acids in the body.
Only a small part of the mouse’s lower intestine — the very end of the small bowel — has the special cells that detect bile acids and send signals to the liver to control how much is made.
When mice can’t send bile acids out of their gut cells, the bile acids pile up inside the cells, tricking the body into thinking there’s too much bile acid overall — so the liver stops making more, even though the total amount in the body actually goes down.
The gut, not the liver, is the main control center that tells the liver when to stop making bile acids — when bile acids enter gut cells, they trigger a signal (FGF15) that shuts down bile acid production in the liver.
Human fat absorption is physiologically limited by bile acid pool size and enterohepatic circulation capacity, resulting in significant fecal fat loss when intake exceeds absorptive thresholds.