Liver Zones and Fat: A Tale of Two Areas
286-OR: Spatial Regulation of Glucose and Lipid Metabolism by Hepatic Insulin Signaling
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
The liver has two zones: one near the entrance (periportal) and one near the exit (pericentral). Turning off insulin signals in the exit zone cuts fat there without raising blood sugar. Turning it off at the entrance cuts fat too—but makes blood sugar and insulin go up.
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 510 / 90
Evidence Score
Participants are randomly assigned to treatment or control groups, minimizing bias. Considered the gold standard for testing whether an intervention causes an effect.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
The liver has two zones: one near the entrance (periportal) and one near the exit (pericentral). Turning off insulin signals in the exit zone cuts fat there without raising blood sugar. Turning it off at the entrance cuts fat too—but makes blood sugar and insulin go up.
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 510 / 90
Evidence Score
Participants are randomly assigned to treatment or control groups, minimizing bias. Considered the gold standard for testing whether an intervention causes an effect.
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Claims (10)
Hepatic lipid accumulation impairs insulin signaling and glucose metabolism, acting as a primary driver of systemic insulin resistance.
The liver isn’t the same all the way through—different parts react differently when insulin stops working, leading to very different outcomes for fat and sugar.
When mice eat a high-fat diet, fat builds up in both parts of the liver—but blocking insulin in just one part stops fat from building up there.
Where in the liver insulin resistance happens determines whether it causes high blood sugar, high fat, or neither.
When the part of the liver that usually responds to insulin is blocked, the liver makes less fat even when the mouse eats a high-fat diet—but its blood sugar and insulin go up instead.