Evidence map›Paper›PMID 27689013›Full record

ArticleMolecular metabolism2016

Roux-en-Y gastric bypass surgery is effective in fibroblast growth factor-21 deficient mice.

Christopher D Morrison, Zheng Hao, Michael B Mumphrey, R Leigh Townsend, Heike Münzberg, Jianping Ye, Hans-Rudolf Berthoud

Open access · goldAbstract read
In one paragraph

Article in Molecular metabolism, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.2field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
  3. The role of the gut-brain axis in bariatric surgery.Current opinion in neurobiology · 2025
    Review
  4. Article
  5. Article
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  9. Diet-dependent sex differences in the response to vertical sleeve gastrectomy.American journal of physiology. Endocrinology and metabolism · 2021
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Christopher D MorrisonPennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, USA.
Zheng HaoPennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, USA.
Michael B MumphreyPennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, USA.
R Leigh TownsendPennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, USA.
Heike MünzbergPennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, USA.
Jianping YePennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, USA.
Hans-Rudolf BerthoudPennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, USA. Electronic address: berthohr@pbrc.edu.
Louisiana State University System · USPennington Biomedical Research Center · US

Funding

Research BaseP30DK072476 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI Sujoy Ghosh · 2005 to 2026
$26.5M
Neural mechanisms controlling food intake and body weight after bariatric surgeryR01DK047348 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI BERTHOUD, HANS-RUDOLF · 1994 to 2018
$5.0M
Leptin and Central Control of ThermoregulationR01DK092587 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI MUENZBERG-GRUENING, HEIKE · 2012 to 2024
$3.5M
Neural regulation of protein ingestionR01DK081563 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI MORRISON, CHRISTOPHER D · 2010 to 2014
$1.4M
FGF21 is an endocrine signal of protein restrictionR01DK105032 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI MORRISON, CHRISTOPHER D · 2016 to 2019
$1.4M
NIDDK NIH HHS P30 DK072476NIDDK NIH HHS R01 DK047348NIDDK NIH HHS R01 DK081563NIDDK NIH HHS R01 DK092587NIDDK NIH HHS R01 DK105032
6 · The paper itself

Abstract

objectiveThe mechanisms by which bariatric surgeries so effectively and lastingly reduce body weight and normalize metabolic dysfunction are not well understood. Fibroblast growth fator-21 (FGF21) is a key regulator of metabolism and is currently considered for treatment of obesity. Although elevated by acute food deprivation, it is downregulated after weight loss induced by chronic calorie restriction but not after Roux-en-Y gastric bypass surgery. Therefore, the goal of the present study was to assess the role of FGF21-signaling in the beneficial effects of Roux-en-Y gastric bypass surgery (RYGB).

methodsHigh-fat diet-induced obese FGF21-deficient (FGF21(-/-)) and wildtype (WT) mice were subjected to RYGB, sham surgery, or caloric restriction to match body weight of RYGB mice. Body weight, body composition, food intake, energy expenditure, glucose tolerance, and insulin sensitivity, as well as plasma levels and hepatic mRNA expression of FGF21 were measured.

resultsHepatic expression and plasma levels of FGF21 are higher after RYGB compared with similar weight loss induced by caloric restriction, suggesting that elevated FGF21 might play a role in preventing increased hunger and weight regain after RYGB. However, although the body weight differential between RYGB and sham surgery was significantly reduced in FGF21(-/-) mice, RYGB induced similarly sustained body weight and fat mass loss, initial reduction of food intake, increased energy expenditure, and improvements in glycemic control in FGF21(-/-) and WT mice.

conclusionsFGF21 signaling is not a critical single factor for the beneficial metabolic effects of RYGB. This may open up the possibility to use FGF21 as adjuvant therapy in patients with ineffective bariatric surgeries.

Indexed as

Body weightDiabetesEnergy expenditureFood intakeGlucose toleranceInsulinLeptinObesity

Identifiers

PMID27689013
PMCPMC5034607
OpenAlexW2518538864

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.