Evidence map›Paper›PMID 26001396›Full record

ArticleDiabetes2015

Improved Insulin Sensitivity 3 Months After RYGB Surgery Is Associated With Increased Subcutaneous Adipose Tissue AMPK Activity and Decreased Oxidative Stress.

X Julia Xu, Caroline Apovian, Donald Hess, Brian Carmine, Asish Saha, Neil Ruderman

Open access · bronzeAbstract read
In one paragraph

Article in Diabetes, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
8.3field-weighted citation impact, top 2% 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

32 citing papers in PubMed, 58 citations in OpenAlex.

  1. Review
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  4. New insights into activation and function of the AMPK.Nature reviews. Molecular cell biology · 2023
    Review
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  6. Article
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  13. [Metabolic surgery].Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen · 2019
    Article
  14. Article
  15. Review
  16. 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 1 institution in 1 country.

X Julia XuDiabetes and Metabolism Unit, Section of Endocrinology, Department of Medicine, Boston University School of Medicine, Boston, MA juliaxu@bu.edu.
Caroline ApovianDiabetes and Metabolism Unit, Section of Endocrinology, Department of Medicine, Boston University School of Medicine, Boston, MA Nutrition and Weight Management Center, Boston University School of Medicine, Boston, MA.
Donald HessDeparment of Surgery, Boston University School of Medicine, Boston, MA.
Brian CarmineDeparment of Surgery, Boston University School of Medicine, Boston, MA.
Asish SahaDiabetes and Metabolism Unit, Section of Endocrinology, Department of Medicine, Boston University School of Medicine, Boston, MA.
Neil RudermanDiabetes and Metabolism Unit, Section of Endocrinology, Department of Medicine, Boston University School of Medicine, Boston, MA.
Boston University · US

Funding

The AMPK/SIRT1 Partnershipand Its Biological RelevanceR01DK019514 · NIDDK · BOSTON UNIVERSITY MEDICAL CENTER HOSP · PI RUDERMAN, NEIL B · 1986 to 2015
$4.9M
NIDDK NIH HHS R01 DK019514NIDDK NIH HHS R01-DK-19514
6 · The paper itself

Abstract

Morbidly obese individuals are predisposed to a wide range of disorders, including type 2 diabetes, atherosclerotic cardiovascular disease, fatty liver disease, and certain cancers. Remarkably, all of these disorders can be improved or prevented by Roux-en-Y gastric bypass (RYGB) surgery. We have reported that decreased AMPK activity, together with increased oxidative stress and inflammation in adipose tissue, is associated with insulin resistance in morbidly obese bariatric surgery patients. In the current study, we assessed how these parameters are affected by RYGB surgery. Eleven patients (average age of 46 ± 4 years) were studied immediately prior to surgery and 3 months postoperatively. We measured subcutaneous adipose tissue AMPK phosphorylation (threonine 172, an index of its activation), malonyl-CoA content, protein carbonylation (a marker of oxidative stress), plasma adiponectin, and mRNA expression of several inflammatory cytokines. After surgery, AMPK activity increased 3.5-fold and oxidative stress decreased by 50% in subcutaneous adipose tissue. In addition, malonyl-CoA levels were reduced by 80%. Furthermore, patients had improvements in their BMI and insulin sensitivity (HOMA) and had increased circulating high-molecular weight adiponectin and decreased fasting plasma insulin levels. In contrast, the expression of inflammatory markers in subcutaneous adipose tissue was unchanged postoperatively, although plasma CRP was diminished by 50%.

Indexed as

Gastric BypassInsulin ResistanceOxidative StressAdiponectinAdultAMP-Activated Protein KinasesCytokinesDiabetes Mellitus, Type 2FemaleHumansMaleMiddle AgedObesity, MorbidRNA, MessengerSubcutaneous FatTreatment OutcomeAdiponectinAMP-Activated Protein KinasesCytokinesRNA, Messenger

Identifiers

PMID26001396
PMCPMC4542447
OpenAlexW1952608506

What OpenQuestion holds

Textmetadata
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.