Evidence map›Paper›PMID 27986588›Full record

ArticleSurgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery2017

Circulating Apolipoprotein A-IV presurgical levels are associated with improvement in insulin sensitivity after Roux-en-Y gastric bypass surgery.

Raghavendra Rao, Alexander Roche, Gerardo Febres, Marc Bessler, Patrick Tso, Judith Korner

Open access · greenAbstract read
In one paragraph

Article in Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 18% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
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  4. Review
  5. Review
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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

6 authors at 4 institutions in 1 country.

Raghavendra RaoDepartment of Surgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ.
Alexander RocheBowdoin College, Brunswick, ME.
Gerardo FebresDepartment of Medicine, Columbia University Medical Center, New York, NY.
Marc BesslerDepartment of Surgery , Columbia University Medical Center, New York, NY.
Patrick TsoDepartment of Pathology and Laboratory Medicine, Metabolic Diseases Institute, University of Cincinnati, Cincinnati, OH.
Judith KornerDepartment of Medicine, Columbia University Medical Center, New York, NY. Electronic address: jk181@cumc.columbia.edu.
Columbia University Irving Medical Center · USBowdoin College · USRutgers, The State University of New Jersey · USUniversity of Cincinnati · US

Funding

Clinical and Translational Science AwardUL1TR001873 · NCATS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI REILLY, MUREDACH P · 2016 to 2025
$99.0M
Clinical and Translational Science AwardUL1TR000040 · NCATS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GINSBERG, HENRY N · 2012 to 2015
$26.2M
Metabolic and Endocrine Effects of Bariatric SurgeryR01DK072011 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI KORNER, JUDITH · 2005 to 2021
$6.2M
Lipid profile, lipoprotein and apolipoprotein composition, and intestinal fat absorption efficiency in germ-free and conventional miceU2CDK059630 · NIDDK · UNIVERSITY OF CINCINNATI · PI LIU, MIN · 2016 to 2021
$4.9M
NCATS NIH HHS UL1 TR000040NCATS NIH HHS UL1 TR001873NIDDK NIH HHS R01 DK072011NIDDK NIH HHS U2C DK059630
6 · The paper itself

Abstract

backgroundApolipoprotein A-IV (ApoA-IV) has been shown to be involved in obesity and diabetes pathogenesis in animal studies, but its role in humans is uncertain.

objectivesThe objective of this study was to determine the relation of ApoA-IV with changes in glucose metabolism and weight after bariatric surgery.

settingUniversity Hospital.

methodsThe patients (n = 49) included lean controls (n = 8) and patients before and after a mean of 7 months after laparoscopic adjustable gastric banding (LAGB, n = 12), laparoscopic Roux-en-Y gastric bypass (RYGB, n = 22), or laparoscopic sleeve gastrectomy (SG, n = 11). ApoA-IV and other hormone assays were performed in the fasting and the postprandial state. Pearson's correlation analyses controlled for baseline BMI and percent excess weight loss (EWL) were used to determine relationships between ApoA-IV levels and insulin resistance (HOMA-IR).

resultsWith all bariatric procedures combined, the change in ApoA-IV [533 versus 518 microg/L, P = .813] or ApoA-IV area under the curve (AUC - 1072 versus 1042, P = .939) was not significant. None of the surgeries individually affected levels of fasting or ApoA-IV AUC. Bariatric surgery resulted in a decrease in HOMA-IR (5.3 versus 2.0, P<.001). In the RYGB group, higher baseline ApoA-IV levels correlated with decrease in HOMA-IR [r = -.6, P = .008]. This relationship was independent of EWL and was not observed in the LAGB or SG group. There was no association of ApoA-IV levels with EWL, insulin secretion, Peptide-YY, or leptin levels.

conclusionPreoperative ApoA-IV levels, rather than changes in levels, positively correlate with improvements in insulin sensitivity independent of weight loss after RYGB.

Indexed as

Gastric BypassLaparoscopyAdultApolipoproteins ABlood GlucoseBody Mass IndexCase-Control StudiesDiabetes Mellitus, Type 2FastingFemaleGastrectomyGastroplastyHumansInsulin ResistanceMaleObesityapolipoprotein A-IVApolipoproteins ABlood GlucosePeptide YYapolipoprotein A-IVLaparascopic adjustable gastric bandingPYYRYGB, LAGB, LSG, Apolipoprotein A4, insulin resistance, Roux-en-Y gastric bypassSleeve gastrectomy

Identifiers

PMID27986588
PMCPMC5473622
OpenAlexW2542349469

What OpenQuestion holds

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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.