Gut Hormones After Gastric Bypass: The Hormonal Explanation for Lasting Weight Loss

Enhanced postprandial GLP-1, PYY, and reduced ghrelin after Roux-en-Y gastric bypass mediated the sustained appetite reduction and weight loss, with hormonal changes persisting long-term — the hormonal basis for surgical success.

le Roux, Carel W et al.·Annals of surgery·2007·Moderate Evidenceclinical-trial
RPEP-01255Clinical TrialModerate Evidence2007RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
clinical-trial
Evidence
Moderate Evidence
Sample
Not reported

What This Study Found

Enhanced GLP-1 and PYY responses with suppressed ghrelin after RYGB mediated sustained appetite reduction and weight loss, with gut hormone changes persisting years post-surgery — establishing hormonal modification (not just restriction) as the primary mechanism of bariatric success.

Key Numbers

How They Did This

clinical-trial study on glp-1, neuropeptides.

Why This Research Matters

Relevant for glp-1, neuropeptides, weight-loss.

The Bigger Picture

Advances peptide research.

What This Study Doesn't Tell Us

See abstract.

Questions This Raises

  • ?Further research needed.
  • ?Clinical translation to evaluate.

Trust & Context

Key Stat:
Key finding Enhanced GLP-1 and PYY responses with suppressed ghrelin after RYGB mediated sustained appetite reduction and weight loss, with gut hormone changes pe
Evidence Grade:
moderate evidence.
Study Age:
Published in 2007.
Original Title:
Gut hormones as mediators of appetite and weight loss after Roux-en-Y gastric bypass.
Published In:
Annals of surgery, 246(5), 780-5 (2007)
Database ID:
RPEP-01255

Evidence Hierarchy

Meta-Analysis / Systematic Review
Randomized Controlled Trial
Cohort / Case-Control
Cross-Sectional / ObservationalSnapshot without intervening
This study
Case Report / Animal Study
What do these levels mean? →

Frequently Asked Questions

What was studied?

Gut Hormones After Gastric Bypass: The Hormonal Explanation for Lasting Weight Loss

What was found?

Enhanced postprandial GLP-1, PYY, and reduced ghrelin after Roux-en-Y gastric bypass mediated the sustained appetite reduction and weight loss, with hormonal changes persisting long-term — the hormonal basis for surgical success.

Read More on RethinkPeptides

Cite This Study

RPEP-01255·https://rethinkpeptides.com/research/RPEP-01255

APA

le Roux, Carel W; Welbourn, Richard; Werling, Malin; Osborne, Alan; Kokkinos, Alexander; Laurenius, Anna; Lönroth, Hans; Fändriks, Lars; Ghatei, Mohammad A; Bloom, Stephen R; Olbers, Torsten. (2007). Gut hormones as mediators of appetite and weight loss after Roux-en-Y gastric bypass.. Annals of surgery, 246(5), 780-5.

MLA

le Roux, Carel W, et al. "Gut hormones as mediators of appetite and weight loss after Roux-en-Y gastric bypass.." Annals of surgery, 2007.

RethinkPeptides

RethinkPeptides Research Database. "Gut hormones as mediators of appetite and weight loss after ..." RPEP-01255. Retrieved from https://rethinkpeptides.com/research/le-2007-gut-hormones-as-mediators

Access the Original Study

Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.

This study breakdown was produced by the RethinkPeptides research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.