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Obesity · International

Fat Cells May Keep Hunger Signal After Weight Loss

2 sourcesUpdated 11 Sept 2026, 6:40 pm Coverage regionsInternational · Global
CATCH ME UP

Researchers report that fat cells can retain a lasting biological memory of obesity.

The study says this memory keeps the hunger hormone asprosin elevated even after weight loss.

The findings are presented as a possible explanation for why weight regain is common after dieting or stopping GLP-1 treatments.

The report also says the mechanism may help explain how obesity can be passed from mothers to children.

Why it mattersThe findings may explain why many people regain weight after dieting, shaping future obesity treatments.
More context

In mice, blocking the asprosin pathway prevented weight regain and inherited obesity risks.

AGREEMENT VS DISAGREEMENT

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What coverage agrees on

The reporting agrees that the study links fat cells to a persistent hunger signal after weight loss and frames it as a possible reason for weight regain.

What is changing or disputed

The key findings come from one research report, so the broader significance and how the mechanism applies outside the study could change as more evidence appears.

HOW COVERAGE DIFFERS

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Supportive1

The available report treats the study as evidence that fat cells can retain a biological memory of obesity. It says this memory keeps the hunger hormone asprosin elevated even after weight loss. The report adds that this may help explain weight regain after dieting or stopping GLP-1 treatments. It also says blocking the asprosin pathway in mice prevented weight regain and inherited obesity risks.

Distinctive emphasis — reported claim, not independently verified.Sources: Medical Xpress
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Medical Xpress Supportive framing Reported

Fat cells retain hunger signal after weight loss, potentially driving obesity relapse

Quick source take

Medical Xpress reports that researchers from Harrington Discovery Institute and Case Western Reserve University discovered fat cells retain a lasting biological memory of obesity that keeps the hunger hormone asprosin elevated even after weight loss. According to senior author Atul Chopra, this mechanism helps explain why individuals frequently experience weight regain after dieting or stopping medications like GLP-1 treatments, and why obesity can be passed from mothers to children. The study identified an inflammatory signal responsible for this effect and noted that blocking the asprosin pathway in mice prevented both weight regain and inherited obesity risks.